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PE-1684B-92
Date to Review Date to AA & DR Date Received Contact person FLOOD ZONE Planning Contact Person Date Submitted 4 —9 c,-.11- ✓ 11 -4 -q3 nr.� e - /- / - 94 - 3 - G et--9¢ 16 -3- 94 6-a.o-94 6 - aa -94- 66 - ,b - 4- 7 - /994- R -04 - `�4 R I1 -94- R- ,; 4 c34 r — 74 i \p breview.lor 9 -6 -9 9-al 3 -23 -93 ENGINEER'S REVIEW SHEET BLDG. PERMIT # -or -FILE# Related File # ( ) Time "Time Project Name RIDGEMONT EST NORTI -1 3RD ADD SITE ADDRESS CANNERY DR/E SONORA/N 21ST Applicant's Name DAVE RENZ-TDC (IUPPER) Address 12929 E SPRAGUE- SPOKANE WA 99216 V NO W S SCHOOL 356 Engineer / Surveyor's / Architect's Name BILL MOSER I Description No. Lots 23 No.Acres 7.8 Section - Township - Range PARCEL # 25542 -9061 Work # Date Conditions mailed Phone # J / AGREEMENT TO PAY FEES COMPLETED & COPY TO ACCOUNTING / / FINAL PLAT FEES COMPLETED & COPY TO ACCOUNTING / NOTICE TO PUBLIC # 1 3 4 6 COMPLETED - OR NEEDS TO BE SIGNED / / DESIGN DEVIATION SUBMITTED ! / ALTERATION TO PLAT - BLOCKS & LOTS / HEARING EXAM _APPROVED DENIED- APPEALED BBC _APPROVED _DENIED ice, o +. (-. ✓a-ti r>JQ I ∎ 6-C GM ' \ a511 AA? t Ott cSuau AA? 1,2 11e t , C\ ✓C I zl s>4,-.._ Plan„ -• �., od / su6iv%' j o 4 . ‘...1112—c re t rn/1 Pro e_o P(cic r PO -Szi • ;In 9 fir t_ PcJe/ _ 1 S�orT, Ply_ - a.' dtd coad g` o r .Dla,.. - 3 Sc &7.,:44 J zotwi_ S4nr l aM4- - 3 r8 7 2 -cntt t. - Rad11 tolcu'tt - `I .�cctYrrtt y ta' JP 514; rm. r (ass_ QL1, t;NIt r c „rma,,,.As -171 SCI Li e\ n12 cc.r -e - , so u e) O2 v P ci36Md\e8`4SovNi1 tV5 SIMPSON ENGINEERS INC 909 N ARGONNE RD SPOKANE WA 99212 926 -1322 I Initials PE -1 68411.0 Phone # 928 -1991 Phone # 456 -2205 rJ Plat Check Fee Number of Lots Road Miles (New) Total Area Scale Legend Procedures & Equipment Basis of Bearings Plat Location By Title Official Signature Blocks Surveyors Certificate Road Names Road Widths Adjacent Area Lot & Block Numbers R/W Dedication designated 1 Foot Strips 3 RPS on GLO Corners Tract X Lot Areas Bench Mark Closure o;Ara PLAT NAME IP C� SC r & .SII2e�rV® 2ftgZ North Arrow y STATISTICS A�ec� -rkif 5le A) % -a3 -9 es ~ (5 -9 MAP east Leen4 b'tiralk F a silo t 4 lga" c��n l r, t� N a 1 SF 1UN tfi -5 itit �7ft� ✓� P A'tt Description (To Map) 1 Description (To Cert) 'Owners Certificate to Plat 1 Foot Strips RID - CPR Statement Access Prohibited R/W Dedication Drainage Language Flood Insurance Stormwater Management 208 Bonds - $1,000.00 ea Private Road Doc. #'s Private Road Warning Road Plans Bond Road Impro �'� y� 6 1barb ( ccj ,t it -c4€ d ) h a+ 3 Di.ccr3 � A 1 7 - r r t" oJS 4 —' .1-oP16k b (G fn I fx k ri 208 PLANS APPROVED _ - NO. / . � . 'r 9-4-Q4 $ 6-e r ^ , — d I 21n0 di DATE JJ _ 2 Z 1 I7 tac fl fx 0 co..) }o`St Irh W U -/G' -d 1 Signed By Engineer —Chct� R g L 5:5 571 S TC�IEAt N-,a Fk.2zC fl /f /platlistrk 0) 121 i.. e■—efa. 1 • �' /L' C _ .�. • .. _ .,JY �'�E.s�.y',. •,: n /#tom/ GkiS XV/L. Nfi -(� /< 6�twJl.�/ !dl/� (4) 1,a .! �a �l• as J 4.4 S- u. tSC'c' 6'f4ttt6l1l \l f3, RCeostdcc 13ettruwq& INTRODUCTION PROPOSAL FINDINGS OF FACT AND CONCLUSIONS 10. The legal requirements for public notice have been fulfilled. SPOKANE COUNTY HEARING EXAMINER COMMITTEE FINDINGS OF FACT. CONCI,IISION,S AND ORDER This matter has come before the Hearing Examiner Committee on January 21, 1993. The members of the Committee present are Phil Harris, Chairperson, Bud Skadan and Frank Yuse. The sponsor, Ken Tupper, requests approval.of a Preliminary.Plat of Ridgemont Estates North, PE- 1684 -92, with existing Urban Residential -3.5 (UR -3.5) zoning within the Aquifer Sensitive Area (ASA) Overlay zone. 1. The property is generally located south of and adjacent to 16th Avenue and approximately 900 feet east of Sullivan Road in Section 25, Township 25 North, Range 44 EWM, Spokane County, Washington. 2. The committee adopts the Planning Department Report as a part of this record. The Planning Department has recommended that the proposed plat be approved as conditioned. 3. The existing land use(s) in the area are residential and agricultural. 4. The proposed use is compatible with existing uses in the area. 5. The Comprehensive Plan designates this site as Urban. The Urban category is for the purpose of residential uses, including residential densities of 1 to 17 units per acre, or 3.2 units for this proposal. 6. The proposed plat does implement and conform to the Comprehensive Plan. 7. The Arterial Road Plan designate 16th Avenue as an arterial, with a recommended right of way width of 80 feet. 8. The existing zoning of the property described in the application is Urban Residential -3.5 (UR -3.5), previously established as Agricultural zoning in 1942 and reclassified to Urban Residential -3.5 (UR -3.5) on January 1, 1991 pursuant to the Program to Implement the Spokane County Zoning Code Pursuant to RCW 58.17.195 the proposal does conform to the requirements of the existing Urban Residential -3.5 (UR -3.5) zone. 9. The provisions of RCW 43.21C (The State Environmental Policy Act) have been complied with and a Determination of Nonsignificance was issued. The Committee, after independent review, hereby adopts the DNS. HEC Order for PE- 1684 -92 Page 2 11. The owners of adjacent lands expressed neither approval nor disapproval of the proposed use. 12. The proposed use will not be detrimental to the public health, safety, morals or welfare especially in light of the conditions recommended by the reviewing agencies. 13. The subdivision proposal is generally consistent with RCW 58.17 and the County subdivision regulations, promoting the public health, safety and general welfare in accordance with standards established by the state and Spokane County. The proposal as conditioned does provide adequate public facilities as cited in RCW 58.17.110 (2). More specifically: a. open spaces b. drainage ways c. public and/or private rights -of -way d. transit e. potable water f. sanitary waste disposal g. parks and recreation facilities h. playgrounds i. schools and schoolgrounds j. sidewalks The above improvements are either existing facilities or will be provided by the applicant upon finalization of this subdivision as conditioned by the Committee and implemented by the various County agencies. CONDITIONS OR CONTINGENCIES APPLIED TO THIS APPROVAL 1. All Conditions imposed by the Hearing Examiner Committee shall be binding on the "Applicant," which term shall include the owner or owners of the property, heirs, assigns, and successors -in- interest. SPOKANE COUNTY PLANNING DEPARTMENT 1. The proposal shall comply with the Urban Residential -3.5 (UR -3.5) zone as amended. Note: A copy of the homeowner /property owners association covenants and restrictions shall be submitted for review and approval to the Planning Department prior to finalizing. Covenants shall state that duplexes are not allowed on lots containing 20,000 square feet or more. Appropriate provisions shall be made for maintenance of the lift station lot and drainage lot with the sponsor and the County Engineer and Utilities Department. 2. The fmal plat shall be designed substantially in conformance with the preliminary plat of record. No increase of density or number of lots shall occur without a change of condition application submittal and approval. Note: Timberlane Road shall be contained wholly within the boundary of the final plat. 3. The Planning Director /designee shall review any proposed final plat to ensure compliance with these Findings and'Conditions of Approval. • HEC Order for PE- 1684 -92 Page 3 4. A final plat name /number shall be indicated before the final plat is filed, such name/number to be approved by the Planning Director /designee. 5. Appropriate road name(s) shall be indicated. 6. The preliminary plat is given conditional approval for three (3) years, specifically to February 1, 1996. The applicant may request an extension of time by submitting a wntten request approximately forty -five (45) days prior to the above expiration date. 7. Appropriate utility easements shall be indicated on copies of the proposed final plat. Written approval of utility easements by appropriate utility companies shall be received with the submittal of the final plat. The final plat map shall indicate by.a clear, dashed line the required yard setbacks from all private, "Tract X" or public roads. The dedication shall contain the following statement: "Side yard and rear yard setbacks shall be determined at the time building permits are requested unless these setbacks are specifically drafted on this final plat. The setbacks indicated on this plat may be varied from if proper zoning approvals are obtained." 9. Three (3) current certificates of title shall be furnished to the Planning Department prior to filing the final plat. 10. Prior to filing of all or a portion of the final plat the applicant's surveyor shall submit one or more maps outlined in red of the area being finalized. The scale shall match the appropriate assessor's map scale. 11. The Spokane County Planning Department shall prepare and record with the County Auditor a Title Notice specifying a future land acquisition area for road right -of -way and utilities. The reserved future acquisition area Title Notice shall be released, in full or in part, by the Planning Department. The notice should be recorded within the same time frame as an appeal and shall provide the following: a. At least 10 feet of reserved future acquisition area for road right -of -way and utilities, in addition to the existing and/or newly dedicated right -of -way along 16th Avenue. NOTE: The County Engineer has required 0 feet of new dedication. b. Future building and other setbacks required by the Spokane County Zoning Code shall be measured from the reserved future acquisition area. c. No required landscaping, parking, '208' areas, drainfield or allowed signs should be located within the future acquisition area for road right -of -way and utilities. If any of the above improvements are made within this area, they shall be relocated at the applicant's expense when roadway improvements are made. d. The future acquisition area, until acquired, shall be private property and may be used as allowed in the zone, except that any improvements (such as HEC Order for PE- 1684 -92 Page 4 landscaping, parking, surface drainage, drainfield, signs or others) shall be considered interim uses. e. The property owner shall be responsible for relocating such "interim" improvements at the time Spokane County makes roadway improvements after acquiring said future acquisition area. 12. The final plat shall indicate yard setback are lengths on cul -de -sac lots which meet or exceed the minimum frontage of the underlying zone of the final plat. 13. A plan for water facilities adequate for domestic service and fire protection shall be approved by the water purveyor, appropriate fire protection district, County Building & Safety Department and County Health District. The agencies will certify on the Water Plan, prior to the filing of a final plat, that the plan is in conformance with their respective needs and regulations. The Water Plan and certification shall be drafted on a transparency suitable for reproduction and be signed by the plat sponsor. 14. The water purveyor shall certify that appropriate contractual arrangements and schedule of improvements have been made with the plat sponsor for construction of the water system in accordance with the approved Water Plan. The time schedule shall provide for completion of the water system and inspection by the appropriate health authorities prior to application for building permits within the final plat. The arrangements or agreements shall include a provision holding Spokane County and the purveyor harmless from claims by any lot purchaser refused a building permit due to the failure of the subdivision sponsor to satisfactorily complete the approved water system. 15. The final plat dedication shall contain the following statement: "The public water system, pursuant to the Water Plan approved by county and state health authorities, the local fire protection district, County Building & Safety Department and water purveyor, shall be installed within this subdivision and the applicant shall provide for individual domestic water service as well as fire protection to each lot prior to sale of each lot and prior to issuance of a building permit for each lot." 16. No building permit will be issued for any lot within the final plat until certified by a Washington state - licensed engineer that "the water system has been installed pursuant to the approved Water Plan for the final plat " including a signed license stamp. The certification may be in the form of a letter, but is preferred to be certified on a copy of the Water Plan as a schematic map showing the "as- built" water system. 17. The Water Plan and the above four (4) conditions of approval regarding the Water Plan may be waived by the Planning Director /designee upon receipt of letters from the appropriate water purveyor and fire protection district stating that simple connections to an existing, approved water system will provide adequate domestic and fire protection water to ensure the public health, safety and general welfare. 18. A survey is required prior to the filing of a final plat. I-IEC Order for PE- 1684 -92 Page 5 19. Prior to approval of road and drainage plans, you are required to coordinate with the United States Postal Service to determine type and location of central mail delivery facilities which may include applicable easements for developments of three or more homes. 20. The preliminary plat approval of PE- 1423 -82, that exists on this site shall become null and void and be replaced by this approval. Note: A portion of PE- 1423 -82, is still active as it lies outside of this proposal, PE- 1684 -92. The plat dedication shall contain a statement to the effect that no duplex shall be allowed on lots of 20,000 square feet or greater. SPOKANE COUNTY DIVISION OF ENGINEERING AND ROADS Prior To Issuance Of A Building Permit Or Ilse Of The Pronerty As Proposed_; 1. The conditional approval of the plat is given by_ the County Engineer subject to dedication of right -of -way and approval of the road system as indicated in the preliminary plat of record. Plans, profiles, and cross- sections as designed to County standards showing proposed street centerline and curb grades shall be submitted to the County Engineer for approval prior to construction and/or the filing of each final plat; road plans to be prepared under the direction of a licensed Professional Civil Engineer. Drainage plans and design calculations showing the alignment of drainage facilities shall be submitted to the County Engineer for approval prior to construction and/or the filing of the final plat. Drainage plans to be prepared under the direction of a licensed Professional Civil Engineer. 4. Construction within the proposed public streets and easements shall be performed under the direct supervision of a licensed engineer/surveyor, who shall furnish the County Engineer with "as- built" plans and a certificate in writing that all improvements were installed to the lines and grades shown on the approved construction plans and that all disturbed monuments have been replaced. 5. No construction work is to be performed within the existing or proposed public right -of -way until a permit has been issued by the County Engineer. All work is subject to inspection and approval by the County Engineer. 6. All construction within the existing or proposed public right -of -way is to be completed prior to filing each final plat, or a bond in the amount estimated by the County Engineer to cover the cost of construction of improvements, construction certification, "as- built" plans and monumenting the street centerlines shall be filed with the County Engineer. 7. No direct access from lots to one -half (1/2) rights -of -way until such roads are constructed to County standards and established as County roads. 8. No direct access from lots to stub road connections until such roads are constructed to County standards and established as county roads. 10 (s)lueolldde iayiagm auauialap of iaaui2ug Aunoj aueilods ayi pue ioiCanmd ,C1nun alquollddt alp 4qm )pago pinoys (s)luealiddy •sangpn asayi 2ulpn;2ai uoaeooiai i0 smaunsnfpe io; uone2ngo ieloutuig ou sawnsse ,Cluno3 auin ods •uogisinbae amen; .10; alone los io paitorpap aq of Xuadoid 2ulpni0ui 'Suadaid ioa[gns a1112unoo ;je 'peayrano .10 punaiSiapun iaylla `saullnn islxa ,Cew aragj . pagloads ulaiay sluawanoidun Xemptw 041 put Aum- ;o -iggu ieuonlppt ;o uoutalpap 041 slue_uem walsXs peoi Xlunoo 2unsrxa aqi uodn lesodo.rd sup Jo laedwl alp lap pauluuaiap sey put Ttsodoid wawdolanap sup pauru exa sey iaaul2ug Aiunoj 0 u. .uoponS1SU0a man uI saa3 pue a2tuleip `sogotoidde 'spew 10 suonein2a1 sogsggtisa uonnlosoi 40114m `papuawe st `Z65I "ON uouniosaj siauolsslwwoJ ;o plog AlunoJ autilods ul quo; las spitpuels 041 of panoidun aq pegs uolslnlpgns pasodoid ayu •pailnbai Osie sl )nemapls put 2ulgino 3o uopon.nsuoa ayu 7uawdoianap ay1;o aZtluoi3 0412uop: yegdsu ;o siunoure 2uLCien annbai ?um suj..•luawdoianap pasodaid gip 01 luaoefpe sl 4014m tam! Xuadwd ista 041 01 peal" uennTns wag anuany 11191 301uawan0idun 0111103 piepueis ss000y reao r `omu laqumN uonoas Aumpeol" ltaldX1 paitu2lsap sey iaaul2ug iS1un03 ayu 7uawdoianap aq1 ;o a2tiuoi; alp 2uopi iiegdse ;o siunouie 2upCien ;o uonlppe am annbai !pm sun 7uawdoianap pasodwd alp 01 wa0efpe SI 1.(014m `peal" uennins ;o luauranoidwl 041 103 paupuels uouoas Xms peol" hold,(£ panu2isap sey iaaul2ug XlunoJ ayu •pannbai osit sI 2ingmo ;o uononnsuoo atu 7itgdse ;o 1003 9£ 3o uontntlsul otp annbar !pm situ 7uawdoianap pasodwd at1 ulgilm paionusuoo aq o1 sl yol4M 'anuQ aueiiagwlu 2ulpni3ul 'snaps plum' IIy 3o luawanoidun ayi io; piepuels ssaaoy itao-1 'omu iagwnN uopoas ,Cempeol" ieald d, pawu2isap set{ iaaul2ug X1unoJ ayu •siossaaons put su2lss 'snag sly `Auadoid at1 ;o siMUMO.10 JOUMO 041 apnioul imp „lutolidde„ piom ayu •spieputis ,C1uno3 auexods of paionusuoo putpau2isap aq nets iuid ayi ulyum spurn owind iiy •spiepuens ,Ciunoj aumlods of pagmo io /pue paned aq nulls lend a p of ssaaae iaanp 2urpinoid spear Awnoo 2uuslxg •walsAs peoi.iunoo 0111 of sogotoidde Aumanup 103 nuuad 2uipilnq t Jo a0uenssl of ioud pannbai an suuuad ssaaae ,Cemanup Itnpinlpul r. .(sauepunoq mid 04112 altumual sla0ns intm pannbai on sots op !no £miodwau) •fiupunoq mid 041 iapioq.10 aItuluual imp snails iie 30 sa2p0 i0 spua 041 it duns 1003 auo v :papaap 10 paneolpap aq Slaans 04130 u0nenapuOo ayi inun IStUl ur ploy aq Xuadoid paquasap 2wmono3 ayi 1241 apew aq uolslnaid aieudoiddt 1et.I. iueondde .10 iadoianap `iaumo ay13o Anyrgisuodsai ati am suouoauuoo poi gun put zCem- ;o -s1g8u (Z /i) 3le11-0uo io; io11uo0 32tur ip pue 'uopoausuoo `u2lsap peog 9 °VIM Z6 - 3d io; iaPJO DaH 'OZ •61 . 8I 'LT '9 • T •£T 'Z '11 '0I 6 HEC Order for PE- 1684 -92 Page 7 the utility is responsible for adjustment or relocation costs and to make arrangements for any necessary work. The County Arterial Road Plan identifies 16th Avenue as a Minor Arterial. The existing right -of -way width of 60 feet is not consistent with that specified in the Plan. In order to implement the Arterial Road Plan, in addition to the required right -of -way dedication, a strip of property 10 feet in width along the 16th Avenue frontage shall be set aside in reserve. This property may be acquired by Spokane County at the time when arterial improvements are made to 16th Avenue. Existing drainage easements for previous plats exists on the parcel to be platted. These easements must be changed and extinguished prior to final platting of the proposed development proposal. 20th Avenue shall be constructed and dedicated from the proposed plat to Sullivan Road prior to final platting of any portion of the proposed plat. SPOKANE COUNTY DIVISION OF UTILITIES 1. Applicant will make connection to Public Sewer System. Sewer Connection Permit is required. Plans and specifications are to be reviewed and approved by the Utilities Department. SPOKANE COUNTY HEALTH DISTRICT 1. The final plat shall be designed as indicated on the preliminary plat of record and/or any attached sheets as noted. 2. Appropriate utility easements shall be indicated on copies of the preliminary plat of record for distribution by the Planning Department to the utility companies, Spokane County Engineer and the Spokane County Health District. Written approval of the easements by the utility companies must be received prior to the submittal of the final plat. 3. Sewage disposal method shall be as authorized by the Director of Utilities, Spokane County. 4. Water service shall be coordinated through the Director of Utilities, Spokane County. 5. Water service shall be by an existing public water supply when approved by the Regional Engineer (Spokane), State Department of Health. 6. Prior to filing the final plat, the sponsor shall demonstrate to the satisfaction of the Spokane County Health District that an adequate and potable water supply is available to each lot of the plat. 7. Prior to filing the final plat, the sponsor shall present evidence that the plat lies within the recorded service area of the water system proposed to serve the plat. HEC Order for PE- 1684 -92 Page 8 8. A plan for water facilities adequate for domestic use, domestic irrigation use and fire protection use shall be approved by the water purveyor. Said water plan must have been approved by the fire protection district and the appropriate health authorities. The health authorities, water supplier (purveyor) and the fire protection district will certify, prior to the filing of the final plat, on the face of said water plan that the plan is in conformance with their requirements and will adequately satisfy their respective needs. Said water plan and certification will be drafted on a transparency suitable for reproduction. 9. The purveyor will also certify prior to filing the final plat on a copy of said water plan that appropriate contractual arrangements have been made with the plat sponsor for construction of the water system, in accordance with the approved plan and time schedule. The time schedule will provide, in any case, for completion of the water system and inspection by the appropriate health authorities prior to application for building permits within the plat. The contractual arrangements will include a provision holding Spokane County /City of Spokane, Spokane County Health District and the purveyor harmless from claims by any lot/tract purchaser refused a building permit due to failure of the plat sponsor to satisfactorily complete the approved water system 10. A public sewer system will be made available for the plat/project, and individual service will be provided to each lot prior to sale. Use of individual on -site sewage disposal systems shall not be authorized. 11. A statement shall be placed in the dedication to the effect that: "A public sewer system will be made available for the plat, and individual service will be provided to each lot prior to sale. Use of individual on -site sewage disposal systems shall not be • 12. The dedicatory language on the plat shall state: "Use of private wells and water systems is prohibited." 13. The plat dedication will contain a statement to the effect that: "The public water system as approved by the County and State Health Authorities and the local fire district and purveyor will be installed within this plat, and the subdivider will provide for individual domestic water service as well as fire protection to each lot prior to sale of each lot and prior to issuance of a building permit for each lot. SPOKANE COUNTY DIVISION OF BUILDINGS Fire flows are applicable for this proposal. The minimum fire flow and flow duration will be based on a representative dwelling size for all floors not including the basement. The maximum dwelling size needs to be submitted to the Department of Buildings. 2. An approved water supply capable of supplying the required fire flow for fir protection shall be provided before any building permits are issued. The water system shall be installed in accordance with an approved Water Systems Plan on file with the Department of Buildings. Certification that the installed system complies with the requirements of the plan and is operational shall be submitted to the Department of Buildings prior rn.pemiit issuance. HEC Order for PE- 1684 -92 Page 9 3. Hydrant location, number and type capable of delivering the required fire flow for residential development shall be provided in accordance with required design specifications. The average distance between hydrants shall be 600 feet and shall not exceed 700 feet. SPOKANE COUNTY AIR. POLLUTION CONTROL AUTHORITY. 1 . All air pollution regulations must be met. 2. Air pollution regulations require that dust emissions during and excavation projects be controlled. This may require use of ate n sprays tarps, sprinklers or suspension of activity during certain weather conditions. Haul roads should be treated, and emissions from the transfer of earthen material must be controlled, as well as emissions from all other construction - related activities. 3 • All travelled surfaces (ie. ingress, egress, parking areas, access roads) should be paved and kept clean. 4. Measures must be taken to avoid the deposition of dirt and mud from unpaved surfaces onto paved surfaces. If tracking or spills occur on paved surfaces, measures must be taken immediately to clean these surfaces. 5. Debris generated as a result of this project must be disposed of by means other than burning (ie. construction waste, etc.). 6 . Demolition and renovation projects must comply with the requirements of CFR 40, P 61, subpart M and SCAPCA Regulation I, Article D(. Intent to Demolish forms are available at the SCAPCA office. 7 • all solid fuel burning devices (wood stoves, pellet stoves, etc...) must comply with local, state, and federal rules and regulations. HEC Order for PE- 1684 -92 Page 10 ORDER The Hearing Examiner Committee, pursuant to the above Findings of Fact and Conclusion, APPROVES the application of Ken Tupper for the Preliminary Plat as described in the application PE- 1684 -92 known as Ridgemont Estates North. Motion by: Frank Yuse Seconded by: Bud Skadan Vote: (3 -0) UNANIMOUS TO APPROVE THE PRELIMINARY PLAT WITH EXISTING URBAN RESIDENTIAL -3.5 (UR -3.5) ZONING HEARING EXAMINER COMMITTEE I-IEREBY A 1 ZEST TO THE ABOVE FINDINGS, ORDER, AND VO 2r - �3 Da /- Chairman i/ ATTEST:.. / For WALLIS D. HUBBARD Planning Director By UL F. JENSENCy Senior Planner Pursuant to County regulations, any aggrieved party has the right to appeal this written decision to the Spokane County Board of County Commissioners within ten (10) calendar days of the signing of this order. Upon receipt of an appeal, a public hearing will be scheduled. If you desire to file such an appeal, you must submit a written appeal, preferably on forms designed for such purpose, to the Board of County Commissioners, W. 1116 Broadway, Spokane, WA 99260, along with a $200 processing fee payable to the Spokane County Treasurer. If you have any questions, please call the Planning Department at 456 -2205. /)' E• . C O u t$ T �'. S p 0 K A N E OFFICE OF THE COUNTY ENGINEER • A DIVISION OF THE PUBLIC WORKS DEPARTMENT Ronald C. Hormann, P.E., County Engineer Dennis M. Scott, P.E., Director PRIORITY FEE AGREEMENT ENGINEER'S AGREEMENT NUMBER I(cs4 / T De - This agreement between Spokane County and AV� Z / tnamc at person) I � u) y E'2 ) A A F # � , whose interest in the project is P c owner, ag "cnC c ) da of ____M13.12-C-0--, 19 a This agreement is applicable to the project is entered into this Y known as: tDGEnlDIVT ES-CATES Ii O RTIA Aa S I f Q _ 3 / q _ 5 t prolccr worms or usenet= a we numoeq That the individuals and parties named herein as having an interest in the above described property or project agree to the following: 1. They request that priority review be given to their project. 2. They agree to reimburse Spokane County for project review fees as specified in Board of County Commissioner's Resolution 80 -1592 attachment C, as amended. The fees will be based on double -time cost incurred by Spokane County for project reviews plus ten percent administrative charge, and will be billed monthly as accrued. 3 be undersigned agrees ehatshese fees s are due u the payable up n receipt of the billing as specified NAME: — FM C, e D re V c ' C nl 7 . ADDRESS: I a ci rQi et E- c PR A(--. U C AO E �iDni<SC i Il) P CITY, STATE: � � ZIP CODE: C \ q 1 PHONE #: ?a 8— 1 9 q l lay in corn n or approval of the project or I understand that failure to pay these fees may result i other possible sanctions. SIGNATURE By: `' /AUE e Par l7_ (PRINT NAME) RETURN PINK COPY TO SPOKANE COUNTY ENGINEERS. j�I 811 Jefferson /',- SSpokane, WA 99260-0180 (5 456 -3600 FAX (509) 456-4745 / / V o N 3/92 F ' v� I Y� Q c_e /. J ,v/ .. No. 94 1346 BEFORE THE BOARD OF COUNTY COMMISSIONERS OF SPOKANE COUNTY, WASHINGTON IN THE MATTER OF EXECUTING A DRAINAGE EASEMENT AGREEMENT ) R E S O L U T I O N REGARDING RIDGEMONT ESTATES ) NORTH 3RD AND 4TH ADDITIONS ) r /6 WHEREAS, pursuant to RCW 36.32.120(6), the Board of County Commissioners of Spokane County has the care of County property and the management of County funds and business; and WHEREAS, R & T, Inc., and Alfons B. Renz and Hilda Renz, husband and wife (all hereinafter referred to as "Developers ") are the owners of property being finally platted into the Ridgemont North 3rd and 4th Additions; and WHEREAS, Developers also own a parcel of land (Assessor's Parcel No. 45255.9065) currently burdened by a drainage easement conveyed to Spokane County in 1978, under County Auditor's No. 9409200309, and serving the plat of Ridgemont Estates, Ridgemont Estates No. 2 and Ridgemont Estates No. 3; and WHEREAS, Developers are in the process of finally platting Ridgemont Estates North 3rd and 4th Additions and are desirous of having such plats drain runoff to Assessor's Parcel No. 45255.9065; and WHEREAS, as a condition of development, Developers are required to submit plans to County Engineering for drainage facilities to be constructed by Developers on Assessor's Parcel No. 45255.9065, and to provide a plan for servicing such facilities; and WHEREAS, Developers are desirous of having the Ridgemont North 3rd and 4th Additions Homeowners Association operate and maintain such drainage facilities; and WHEREAS, the County and Developers are willing to allow other properties lying within the drainage basin which drains to Assessor's Parcel No. 45255.9065 drain runoff to such parcel following their development, provided the owners of such developed properties share in the cost of maintaining and operating the drainage facilities installed on such parcel; and WHEREAS, the Spokane County Engineer has negotiated an agreement with Developers entitled "Modified Drainage Easement Agreement "; NOW, THEREFORE, BE IT RESOLVED that a majority of the Board of County Commissioners, or its Chairman, be authorized to execute, that certain document entitled "Modified Drainage Easement Agreement "; which agreement (1) authorizes Spokane County to enter into an agreement with R & T, Inc., and Alfons B. Renz and Hilda Renz, husband and wife ( "Developers "), the developers of Ridgemont Estates North 3rd and 4th Additions and owners of Assessor's Parcel No. 45255.9065, (2) provides for termination of a Storm Drainage Easement and Right -of -Way Agreement recorded under County Auditor's No. 9409200309, regarding Assessor's Parcel No. 45255.9065, (3) conveys a new drainage easement in Assessor's Parcel No. 45255.9065 to Spokane County, (4) requires Developers to install certain drainage facilities within the drainage easement on Assessor's Parcel No. 45255.9065, (5) requires the Ridgemont North 3rd and 4th Additions Homeowners Association to operate and maintain such drainage facilities, (6) authorizes Spokane County upon its request to take over maintenance and operation of such facilities from said homeowners association and levy charges for the costs of such services, and (7) authorizes other developments in the area to drain runoff to the drainage easement on Assessor's Parcel No. 45255.9065, but requires the owner of lots in such developments to 94 1346 pay a proportionate share of the cost of servicing the drainage facilities on said parcel. ATTEST: WILLI Clerk, of RESOLVED this 4th day of October, 1994. DONAHUE, e Board Deputy Clerk BOARD OF CO TY COMMISSIONERS OF SPO s , si TY, W SHINGTON n Hasson, Chairman D.E. Cfiilbe Patricia A. Mumme TO: SUBJECT: DATE: S impson Engineers, Inc. CIVIL ENGINEERS AND LAND SURVEYORS N. 909 Argonne Road • Spokane, WA 99212 (509) 926-1322 • Fax: 926-1323 rnkn e Cntnn 4- rAn7In e &ire- TDri Rev—i-tm Riaae.vInnvNir t- 7r-s-t &t1rI. Al)0 Ciq 4- A -1-4 a. C. P. ct n. tpr/er.-1-r- dram. kna 4-he PlaA— ., 2 t e lm s et.v\ v— I s ) 6n, -1-4-a. 1. S., n le-- r (Iv v- rI Signed n RECEIVED AUG 2 6 1994 SPOKANE COUNTY ENGINEER ju 49- TO: 1 SUBJECT: DATE: s »-kn v, to fn J 'n, V. E5v.1 IAe Ih s vc+ Lie- rt Ric{o,evv,rns Es-Lack-es k.�nr� -H .� Arlrfi-kinln Ma.rc.G, 2_I ,isg 4— Ev.c.Inc.erl is 1 coot' o-F 4-k e- -Riv.a._.1 Pia+ u1i n n v-r P_ c -4- i n v. c, -44 a+ yn o < c. k -Rn v-. A l s n 4- Ir. e r r el I v, P -; c -t4 i 4 1 p I a+ n v. CA. - i " io r 12 v cl.� P. ne n v.4 F S P. S b1n -I-4. %1M Add. S impson Engineers, Inc. CIVIL ENGINEERS AND LAND SURVEYORS N. 909 Argonne Road • Spokane, WA 99212 (509) 926 -1322 • Fax: 926 -1323 RECEIVED Pinta ° ? 100% SPOKANE COUNTY.ENGINEEki Signed >„ — 0 94/t7,-- c i ' ( TRANSACTION NUMBER: T9300524 APPLICANT: T D C INC ADDRESS: 129297 E SPRAGUE AVE SPOKANE WA 99207 CONTACT NAME: T D C INC TRANSACTION: PRELIMINARY PLAT FINAL - RIDGEMONT EST NORTH 3,4,5 DOCUMENT ID: 1) 2) 3) 4) 5) 6) PAYMENT DATE 04/15/93 ITEM DESCRIPTION PRELIMINARY PLATS: FINAL PROCESSED BY: WENDEL, PRINTED BY: WENDEL, * * * * * * * * * * * * * * * * * * * ** RECEIPT# 00002631 GLORIA GLORIA RECEIPT SUMMARY FEE & PAYMENT SUMMARY CHECK# 1127 QUANTITY 3 TOTAL DUE = TOTAL PAID= BALANCE OWING= DATE: 04/15/93 PHONE= 509 928 1991 PHONE= 509 928 1991 FEE AMOUNT 300.00 300.00 300.00 .00 PAYMENT AMOUNT 300.00 * * * * * * * * * ** THANK YOU ***** * * * * * * * * * * * * * * * * * * * * * * * * ** * * * ** S impson Engineers, Inc. CIVIL ENGINEERS AND LAND SURVEYORS -- N. 909 Argonne Road • Spokane, WA 99212 (509) 926 -1322 • Fax: 926 -1323 TO: co--- c 13 -'.r +o Spoto -Nne Cour Ew9�ne - r5 SUBJECT: 2,a5cw.or*4- Es - k-a--+ Nor4L 3 "d DATE: NdY. 30, t 29. TN Adel. OL G ; 139 SSV1' inineefin T h; is r I y� ,apdo-�r -�r',r ye r r.v 1 , ri.� - �n 5z -l- r L In rr. rl. -i- q .P 4r n.PDrnvM Ow. TLtr. rte 1 In n P, vlAn fr n in rl t „ P e•rn. 7 • +�AP v�SY nT -1-L • rIN r2l,nnc In v. q. }n �e�. ov, 4.P_ pi n - t'. ✓ Signet i:711 _11^^e - `� 94 1346 SRS /9409 -011 9410050526 MODIFIED _n r`7 u ., : cOPDEn r.; 5 1994 EASEMENT AGREEMENT r wtwLlnC This Agreement is made and entered into by and between R & T, INC., a Washington Corporation, Alfons B. Renz and Hilda E. Renz, husband and wife (hereinafter collectively referred to as "Renz ") and Spokane County, a political subdivision of the State of Washington (hereinafter referred to as "County "). RECITALS 1. Renz and the County entered into a Storm Drainage Easement and Right -of -Way Agreement dated February 9, 1978 and recorded under Spokane County Auditor's No. 8004140245. 2. A previous draft of an Easement Agreement was recorded under Spokane County Auditor No. 9409200309. 3. Renz and the County desire to terminate the Easements referred to in paragraphs 1 and 2 above and concurrently substitute and replace them with this Agreement. NOW, THEREFORE, in consideration of mutual covenants and conditions contained wherein, Renz and the County agree as follows: 1. The Storm Drainage Easement and Right -of -Way Agreement and the Easement Agreement referred to in Recital Paragraph 1 and 2 above is hereby terminated and replaced in its entirety with this Modified Easement Agreement. 2. Concurrently with said termination, Renz does hereby convey to Spokane County and to the Ridgemont Estates North 3rd and 4th Additions Homeowners Association (hereinafter "Homeowners Association ") an Easement over, under, upon and across the property described in Exhibit "A" attached hereto and -1- incorporated herein by this reference for the purpose of conveying and disposing of storm water and drainage run off originating on or flowing through property described in Exhibit "B" attached hereto and incorporated herein by this reference (hereinafter referred to as "Developed Property "), and the property located within Ridgemont Estates North 3rd and 4th Additions. 3. Notwithstanding the provisions of paragraph 2 above, it is specially understood and agreed that the drainage easement may receive the natural flow of water from undeveloped area within the drainage basin for this easement identified in that certain study performed by Simpson Engineers, Inc. in conjunction with Project Nos. P -1684B and P -1684C on file with the Spokane County Engineer. With the consent of Spokane County or at its request, the description of the Developed Property may be expanded to include newly platted or divided properties ( "additional properties") if (a) the developer of such additional properties has entered into a written agreement with the entity responsible for operation, maintenance and repair of the drainage facilities pursuant to this agreement, (b) said agreement addresses payment of a pro rata share of the costs of operation, maintaining and repairing the facilities by the owner of such properties, in accordance with paragraph 5 below (c) said agreement has been approved as to form by the County and is fully executed and recorded before final plat approval, and (d) thirty days written notice has been provided by Spokane County to the owners of the property described in Exhibit "A" and to the entity responsible for operation and maintenance of the drainage facilities that such additional properties are being added to the Developed Property. 4. Renz agrees to install at its expense drainage facilities on the easement as described and in accordance with approved plans on file with the Spokane County Engineer's SRS /9409 -011 -2- Office. Upon completion of the drainage facilities, Benz shall submit to the County Engineer "as- constructed plans" stamped by a licensed professional engineer. Renz shall reimburse Spokane County for all costs, expenses and fees incurred by the County in approving the plans for and inspecting the drainage facilities. 5. The Homeowners Association shall be responsible for the operation, maintenance and repair of the drainage, facilities located within the easement area, including but not limited to maintaining a cover of dryland type grasses within the pond, keeping any ditches open and clean, keeping the drywells free of debris and silt, and routinely inspecting the drainage facilities. Optional shrubbery and /or trees may be planted within the drainage easement provided there is no obstruction of flow or storm water percolation. It is specifically understood and agreed, however, that in the event additional properties are added to the description of the Developed Property, the owners of said additional properties shall be required to reimburse the Homeowners Association for the cost of operation, maintenance and repair of said facilities on a pro rata basis. The pro rata annual reimbursement costs for such additional properties shall be determined as follows: SRS /9409 -011 Pro rata share = annual maintenance cost x F. F = number of lots added to the Developed Property divided by (number of lots added to Developed Property + number of lots in Ridgemont Estates North 3rd and 4th Addition). Spokane County may, at its option and at any time hereafter, assume responsibility for operation, maintenance and repair of the drainage facilities and may levy service charges on _lots within Ridgemont Estates North 3rd and 4th Additions, and on any additional properties added to the Developed Property, for the pro rata share costs of such operation, determined as follows: -3- SRS /9409 -011 Pro rata share for each lot = annual maintenance cost divided by (number of lots added to Developed Property + number of lots in Ridgemont Estates North 3rd and 4th Addition). Such charges shall be collected and enforced by Spokane County in the manner provided by County resolution or ordinance for the levying and enforcement of storm water service charges by Spokane County. It is specifically understood and agreed that lots or owners of lots in Ridgemont Estates, Ridgemont Estates No. 2 and Ridgemont Estates No. 3, although included in the definition of "Developed Property ", are not liable for reimbursement of costs or for service charges levied for maintenance, operation and repair of the drainage facilities as provided for in this agreement. This limitation shall not be construed to otherwise limit the statutory authority of Spokane County to levy rates, charges or assessments on such lots or the other Developed Property if the owners of such property receive or will receive services or benefits from additional storm water control facilities installed by the County or from additional storm water services provided by the County. 8. If the Homeowners Association fails to maintain and operate the drainage facilities in good working order, Spokane County may give written notice of such failure to the Homeowners Association and if such failure is not corrected within the period indicated in said notice, Spokane County shall have the right to correct said maintenance failure or compel such failure to be corrected at the expense of the Homeowners Association. -4- 9. If the facilities are damaged due to the negligence or intentional act of any party to this Agreement, that party shall be responsible for the cost of repairing such damage and for indemnifying the other parties of this Agreement against all damages, costs, suits, claims and expenses arising out of or caused by such negligence or intentional act. 10. Renz and the Homeowners Association hereby agree to indemnify Spokane County for all damages, including inverse condemnation, that any property, real or personal, caused by resulting from the deficient construction of the drainage facilities or the failure of Homeowners Association to properly maintain and operate said facilities. 11. The owner of the property described on Exhibit "A" shall timely pay and keep current all taxes and assessments levied against such property, and shall keep such property free of all liens and security interests. 12. The easements granted herein shall respectively run with the property described in Exhibit "A" and "B" hereto and the provisions of this Agreement shall be binding upon and inhere to the benefit of the successors and interest of the parties to this Agreement. 13. Any action that law, suit and equity or judicial proceeding for the enforcement of this Agreement or any provision hereto shall be instituted only in a court of competent jurisdiction within Spokane County, Washington. SRS /9409 -011 -5-- 14. This Agreement is complete and in total agreement of the parties and may not be modified except through a written Agreement executed with the same formalities as the present Agreement. 15. This Agreement replaces and supersedes an earlier Easement Agreement recorded September 20, 1994, under Spokane County Auditor's File No. 9409200309. r • HILDA E. RENZ, by David/W. Renz her Attorney -in -fact !' R & T, INC. By \ f ,• N -0 ti N*0 Its vim( SRS /9409 -011 - BOARD OF COUNTY COMMISSIONERS OF SPOKANE COUNTY, WASHINGTON ALFONS B. RENZ, by David W. Renz Steve" sson, 'chairman his Attorney -in- fact lteg D.,t Chil erg Patricia A. ummey ATTEST: WI Clerk o.f' t IAM E. DONAHUE Board sanne Mo tague eputy Clerk STATE OF WASHINGTON ) ss. County of Spokane ) I certify that I know or have satisfactory evidence that DAVID W. RENZ signed this instrument as attorney -in -fact of ALFONS B. RENZ, and acknowledged it to be the free and voluntary act of said ALFONS B. RENZ, for the uses and purposes mentioned in the instrument, and on oath stated that the power of attorney authorizing the execution of this instrument has not been revoked, and thatcsaid ALFONS B. RENZ is now living. DATED:, � � ` - , 1994: STATE OF WASHINGTON ) County of Spokane ) SRS /9409 -011 SS e. KZ � / NOTARY;: PUBL C in rand for the State of Washington, rdsiding at Spokane „...-My appointment expires: / - 7 /... - %4 I certify that I know or have satisfactory evidence that DAVID W. RENZ signed this instrument as attorney -in -fact of HILDA E. RENZ, and acknowledged it to be the free and voluntary act of said HILDA E. RENZ, for the uses and purposes mentioned in the instrument, and on oath stated that the power of attorney authorizing the execution of this instrument has not been revoked, and that said / HILDA E. RENZ is now living. DATED: _ _,: ` J,�. . , 19-9-4-:\ % . /% // \. 1/, � //J ' -�l� - i % /'l am/ - NOTARY PUBLIC i`n --and for the State _�_- ofWashington, residing at Spokane My appointment expires: l -7- STATE OF WASHINGTON ) ss. County of Spokane ) I cer ify that I know or have satisfactory evidence that SeeWen flanon is the person who appeared before me, and said person acknowledged that he signed this instrument, on oath stated that he was authorized to execute the instrument and acknowledged it, as theekvr (rain , l of SPOKANE COUNTY, to be the free and voluntary act of such party for the uses and purposes mentioned in the instrument. DATED: (19.4 Q✓ /I , 1994. /M ::� 2c .4. NO ` TAR - PUBLIC in and fog y he State of W, shington, residing at Spokane My appointment expires: -K STATE OF WASHINGTON ) ss. County of Spokane ) j I c- f that I know or have satisfactory evidence that AP / is the person who appeared before me, and aid per r." a. rowlodged that he signe his instrument, on oath stated at he was authors ed to e e e the instrument and acknowledged it, as the ,'"I it r_ of R & T, INC., to be the free and voluntary act of such "party for the uses and purposes mentioned 4t' the instrument. DATED: /1 --, �l 4994.1 / -- /� /(7 \ Z j . 7!) e - A / 'Cr-Cc' s ✓ - -N ARY PUBLI and'"for the State of Washington, residing at Spokane My appointment expires:/ • -_:),--) - jG SRS /9409 -011 -8- 94 1316 EXHIBIT "A" (Drainage Easement) LEGAL DESCRIPTION (Assessor's Parcel No. 45255.9065): A portion of the Northeast quarter of the Northwest quarter and the Northwest quarter of the Northeast quarter of Section 25, Township 25 North, Range 44 East, W.M., being more particularly described as follows: BEGIN at a point that is South 89 °16'42" East, a distance of 626.35 feet from the North quarter corner of said Section 25, said point being common to the North boundary of said Section 25 and the West boundary of Leo N. Cashatt and others, as established by a survey performed by Adams Engineering in 1976 ;' thence along said Cashatt West.boundary, the following two (2) courses, South 30'08'12" East, a distance of 152.25 feet.; thence South 50 °22'25" East, a distance of 26.00 feet; thence South 52'30'00" West a distance of 135.07 feet; thence: South 30 °22'00" East, a distance of 119.42 feet; thence South 56'26'16" West, a distance of 40.06 feet; thence North 30 °22'00" West, a distance of 116.74 feet; thence South 52 °38'00" West, a distance of 307 feet; thence South 50 °22'00" East, a distance of 151.82 feet; thence South 39 °26'16" west, a distance of 40.00 feet; thence North 50 °22'00" West, a distance of 161.19 feet; thence South 45 °39'33 "West, a distance of 349.84 feet: thence South 50 °33'44" East, a distance of 199.11 feet; thence South 39 °26'16" West, a distance of 40.00 feet; thence North 50 °33'44" West, a distance of 203.47 feet; thence South 45 °39'33" West. a distance of 84.90 feet; thence South 76 °35'00" West, a distance of 144.00 .feet; thence South 07 °35'00" West, a distance of 89.92 feet to the East line of the Future Plat of Ridaemont Estates North 3r,' Addition: thence North 02 °51.'52" West, along said East line. a distance of 215.89 feet to a poi:;t on a nontangent curve concave to Lhe West with a radius of 50.00 feet and a radial bearing of South 44°22'04" Cc.st, said point bei:.a on the Easterly Line of the Future PI:,t: of Ridgemont Estates North 4th, the next 2 courses ai'ng said Easterly line :. thence Northeasterly,. Northerly and Northwesterly through central angle of 119 °08'01 ", an arc distance of. 103.96 feet; thence North 16 °29'55" East', radial to.said curve, a distance of 28.10 feet; thence North 56'18'15" Fast, a distar:e of 248.44 feet; thence North 32 °0'3'54" East, a distance of 244.68 feet; thence North 76 °30'08" East, a distance of 154.57 feet; thence North 54 °00'44" East, a distance of 186.55 feet;• thence North 62 ° 14'59" East, a distance of 149.00 feet; thr_nce North 26°59'32" East, a distance of 29.57 feet to the ;011th right of way (R /W) of 16t: Avenuc and a point on a curve concave to the Northwest with a radius of 495.72 feet and a radial bearing of South 16 °02'48" East, thence Northeasterly along said South R /W, throuah a central anale of 3 °I5'02 ", an arc distance of 28.12 feet; thence South 89 °69'28" East, 25.38 feet to the Point of Beoinning; Situate in the County of Spokane, State of Washington; page 1 of 2 94 1346 , Exhibit- "A" -..� 1 1 1 r I I J 1 • 1 I 1\ \ \ t I ■ s / / ■ \ I el 1 , 1 1 1 I ' I 1 / . \ 1 1 t 1 1 I I ' 1 1 .sr \ xeo.Q - t' IJ . 1 I o \ I I.. 1 » .. 1 1 . . 1. - - / / ,.tsk .` , z'♦ ' /' / • , // cOnW W \ \ \ J .. • . / . . / / j n P . • n lA 1 , I I / • • 1 / L E. • ' „ I' \ • • • ' \ • • • • page 2 of 2 1•' • / N. 1 1 • I \N 1 1 94 1346 EXHIBIT "B" Ridgemont Estates, Ridgemont Estates No. 2 and Ridgemont Estates No. 3 No. 94 1346 BEFORE THE BOARD OF COUNTY COMMISSIONERS OF SPOKANE COUNTY, WASHINGTON IN THE MATTER OF EXECUTING A DRAINAGE EASEMENT AGREEMENT ) R E S O L U T I O N REGARDING RIDGEMONT ESTATES ) NORTH 3RD AND 4TH ADDITIONS ) WHEREAS, pursuant to RCW 36.32.120(6), the Board of County Commissioners of Spokane County has the care of County property and the management of County funds and business; and WHEREAS, R & T, Inc., and Alfons B. Renz and Hilda Renz, husband and wife (all hereinafter referred to as "Developers ") are the owners of property being finally platted into the Ridgemont North 3rd and 4th Additions; and WHEREAS, Developers also own a parcel of land (Assessor's Parcel No. 45255.9065) currently burdened by a drainage easement conveyed to Spokane County in 1978, under County Auditor's No. 9409200309, and serving the plat of Ridgemont Estates, Ridgemont Estates No. 2 and Ridgemont Estates No. 3; and WHEREAS, Developers are in the process of finally platting Ridgemont Estates North 3rd and 4th Additions and are desirous of having such plats drain runoff to Assessor's Parcel No. 45255.9065; and WHEREAS, as a condition of development, Developers are required to submit plans to County Engineering for drainage facilities to be constructed by Developers on Assessor's Parcel No. 45255.9065, and to provide a plan for servicing of such facilities; and WHEREAS, Developers are desirous of having the Ridgemont North 3rd and 4th Additions Homeowners Association operate and maintain such drainage facilities; and WHEREAS, the County and Developers are willing to allow other properties lying within the drainage basin which drains to Assessor's Parcel No. 45255.9065 drain runoff to such parcel following their development, provided the owners of such developed properties share in the cost of maintaining and operating the drainage facilities installed on such parcel; and WHEREAS, the Spokane County Engineer has negotiated an agreement with Developers entitled "Modified Drainage Easement Agreement "; NOW, THEREFORE, BE IT RESOLVED that a majority of the Board of County Commissioners, or its Chairman, be authorized to execute, that certain document entitled "Modified Drainage Easement Agreement "; which agreement (1) authorizes Spokane County to enter into an agreement with R & T, Inc., and Alfons B. Renz and Hilda Renz, husband and wife ( "Developers "), the developers of Ridgemont Estates North 3rd and 4th Additions and owners of Assessor's Parcel No. 45255.9065, (2) provides for termination of a Storm Drainage Easement and Right -of -Way Agreement recorded under County Auditor's No. 9409200309, regarding Assessor's Parcel No. 45255.9065, (3) conveys a new drainage easement in Assessor's Parcel No. 45255.9065 to Spokane County, (4) requires Developers to install certain drainage facilities within the drainage easement on Assessor's Parcel No. 45255.9065, (5) requires the Ridgemont North 3rd and 4th Additions Homeowners Association to operate and maintain such drainage facilities, (6) authorizes Spokane County upon its request to take over maintenance and operation of such facilities from said homeowners association and levy charges for the costs of such services, and (7) authorizes other developments in the area to drain runoff to the drainage easement on Assessor's Parcel No. 45255.9065, but requires the owner of lots in such developments to 052194 13:49 WITHER_POON 8 KELLEY - 5099284250 NO. 636 901 YY. DYYIOI1 IuttT t p.(/IDID. MD Y IMPS{ YDLU. D 119p.tt•• tutu .1 1A.D a TYq..t Ctler.Le TYI}eA. D CICIM,. Dun. Y tNYIP Cam V{tall./ 1011.1T a 1k*p1.• DDYUD I UAW: SUL1 0 CUPID. p1 I4. AW D MAD. laic T I1AWtl• a)rw 1 .Mlo-- 1 Y.I 1 1 I a. 1 \MAT 1 f IMfl 0' 4 I111t1 p11u MUT III D.p14 t D..YVR. D *Pya1 l IICO YYITI (3I.IM1..1.: OtWafti Tl Y D411.. 11Y01Yf Y 011 1:0n1D s DDYIL p tSlat s 1 Y 114DIN4D• • "WWI. D IMPs 0 1 1RIa R AIAA4 11.1081 YI1LY1 VL611T a+AL t110011 .e.■ I . 1— WITHERSPOON, KELLEY, DAVENPORT & TOOLE A PROFESSIONAL SERVICR CORPORATION ATTORNEYS 4 COUNSELORS 1m/9403.305 U. S YANA BUILDING 127 WEST RIVERSIDE. SUITE IIOO SPOKANE WSHINOTON 997014)90 khMDDe• 1 5091 614.7747 binop.Y. 1 5001 •S$.272$ F'ACSI E TR?H.SMTgg7AY rS WFFi PAGE TO: g ._ OF: CITY /STATE: FAX NO: 9,2k- - - 5 / (� � DATE: % - ,-;2(5 9 MCA D'ALPI 111 WIIM *1 .i tTAW D.N1a 4+.01., • h.. ...trlw FROM: ) /i:1 7 > � / ' / 47 717 ACCOUNT NO: Es d' a This transmission contains .1 pages, including this cover page. If you do not receive all pages, or if any of the pages are illegible, please contact operator at (509)624 -5265. Unless otherwise indicated, the information contained in this FAX message is information protected by attorney /client privilege, and /or attorney work - product privileges. It is intended only for the individual named above, and the privileges are not waived by virtue of this having been sent by facsimile. If the reader of this facsimile, or the employee or agent responsible to deliver it to the named recipient, is not the intended recipient, you are hereby notified that any dissemination, distribution or copying of this communication is strictly prohibited. If you have received this communication in error, please immediately notify us by telephone to arrange for the return of the transmitted documents. f a WM. A LAWINRORT POAFRT L MAGNUSON NED M. EARNER WILLIAM 0 STMMC •• ROILRT 11. LAMP l THOMAS CLINNOLLI THOMAS D COCHRAN WANE M SWINTCIN I0311.71I IT WDAMAN msREY L IUPINDFJr DONAW 1 IURT'S•: LLCJLI WEATIIFTWEAn• MICHAEL D COPAN RPWN T IRIOW N• EDWARD) ANSO4•• R. MAX 11111:14.0. STANLEY R Stilt r. U. MICHAEL r. MCNSTTCT• LAPIN M III.FY 111 DANIEL 0 IAMVYTEP DANIEL D FIEND MARY F.LIIANNIHI•! Inivvin W n.Nl1•• TIMDnn M. LA W I.OK 3PL•H4.10 A W. 311L4A11L4 U' AATIILRN D RNSLN WILLIAM Y. KCLLEY KARL. K KROGIIF. :Almsae ..,.. an Iv. minors . MV.. 1 : a7 W l I rltr,5r1Jm L4 KtLLt7 + 71'17 7Gb'•Ic71!1 WITHERSPOON, KELLEY, DAVENPORT & TOOLE A I'ROI'ITSS10NA1, SHRVIc} CORPORATION ATTORNEYS d: COUNSELORS U. S. DANK 13UILDINU 422 WEST RIVERSIDE'. SUITE 1 100 SPOKANE_ WASHINGTON 99201-0390 Telephone (504)62442M Iciccnpicr. r6G0) 466 -:728 September. 20, 1994 Mr. Michael Dempsey Deputy Prosecuting Attorney W. 1115 Broadway Spokane, WA 99260 OPCLn1N3CL RE: Articles of Incorporation of Ridgemont North 3rd and 1AINL.nun 4th Addition Homeowners Association ALLAN 11, YMILI: Dear Mike: We forwarded the Article of Incorporation of Ridgemont North 3rd and 4th Addition Homeowners Association to Unisearch in Olympia to be filed with the Secretary of state on a priority basis. We are informed by Unisearch that they filed the Articles of Incorporation with the Secretary of State on Monday, September 19, 1994 and they are being returned to us. SRS /jlw 9409.008 very truly yours, WITHERSPOON, KELLEY, DAVENPORT & TOLE, P.S. StXNLEY R. SCHULTZ NO. 636 902 IVJVY I'ALENC Unity 1 W SIIIAMAN A VT WTIF COWR D ALENE IDAHO IM IAA 0111 1 em.lu.t .09/23/94 09:50 WITHERSPOON & KELLEY » 509 3243478 Drin4 ROOM t ra044)10. Yw- I••.tI •1W•Y D 1•1••••• •• toot,/ • I•• a t•w4 Oa..OS/ Maui D [0[114• Platt 0. IW00t 611• M WI••• IOIRtt t It9143117• tpa11-41 I lUall•: laN.lt 1 0 tan' NOD/ tn 1 ▪ 11 1 D NO 1441•••D . ..110 lung• t gw•Cl ••••• I MI[M?V•• p 4.1 lint 1P D••IL DeV••il D••• 1 t1••t• n •• • P. Wyly'; re wM1 • D.nt•• MTFT0 •4• D•Y.D • DOrIL M /Ten • • mD•nuD• a aY•at• D NNW. O CUl•a two L. I4L . a 4:-AN ICOL .Ily... •tats. ..4 a uODUt wrim■ mu. iO: OF: WITHERSPOON, KELLEY, DAVENPORT & TOOLE A PROFESSIONAL SERVICE CORPORATION ATTOR■EYS A COUNSELORS CITY/STATE: FAX NO:—/� ? FROM: 1m/94O3.305 U S BANK BUILDING I;• WEST RIVERSIDE. SUITE. 110n SPOKANE. RASHTNGTON 992014)W bllta•e't' 17091 671 -1761 •IKDwa. 17091 U1 .1721 3 9'7 DATE: - 2S - 7 ci NO. 646 001 COMA D'41.1.1 1" lad M..... DOWD D last I01.14 , ./ - ACCOUNT NO: 15:(_0_ O This transmission contains pages, including this cover page. If you do not ecei_ve all pages, or if any of the pages are illegible, please contact operator at (509)624 -5265. Unless otherwise indicated, the information contained in this FAX message is information protected by attorney /client privilege, and /or attorney work- product privileges. It is intended only for the individual named above, and the privileges are not waived by virtue of this having been sent by facsimile. If the reader of this facsimile, or the employee or agent responsible to deliver it to the named recipient, is not the intended recipient, you are hereby notified t:at any dissemination, distribution or copying of this communication is strictly prohibited. If you have received this communication in error, please immediately notify us by telephone to arrange for the return of the transmitted documents. 09/23/94 09:50 WITHERSPOON 8 KELLEY » 509 324347E ARTICLES OF INCORPORATION OF RIDGEMONT NORTH 3RD AND 4TH ADDITION HOMEOWNERS ASSOCIATION FILED STATE OF WASHINGTON SEP 1 6 !N4 RALPH MUNRO SECRETARY OF STAY The undersigned, acting as an incorporator under the Washington Nonprofit Miscellaneous and Mutual Corporation Act (Revised Code of Washington 24.03), adopts and executes the following Articles of Incorporation. ARTICLE I Name The name of this corporation is RIDGEMONT ESTATES NORTH 3RD AND 4TH ADDITION HOMEOWNERS ASSOCIATION (hereinafter "Association "). ARTICLE II Duration The period of duration of this Association shall be perpetual. ARTICLE III Purposes The purposes for which this Association, a nonprofit organization, is formed are: 1. To provide for the repair, care, maintenance, management and operation cf real property describes in that certain Declaration of Covenants, Conditions, and Restrictions for Ridgemont Estates North Third and Fourth Additions and recorded in the records of the Spokane County Auditor as amended from time to time : "Covenants "); 2. Tt engage in any other 1a'..:ful activity which may hereafter be authorized from time to time by the Board of Directors; and -1- NO.646 D02 09/23/94 09:51 WITHERSPOON 8 KELLEY - 509 3243478 3. To perform the purposes of the Association set forth in said Covenants. ARTICLE IV Powers This Association shall have the power to do all lawful acts or things necessary, appropriate, or desirable to carry out and in furtherance of its purposes described in Article III and those purposes which are consistent with the Washington Nonprofit Corporation Act. This Association shall also have all rights and powers now given to nonprofit corporations generally under the laws of the State of Washington, and all further and broader rights and powers which may, in the future, be given to nonprofit corporations generally under the laws of the State of Washington. ARTICLE V Reaistered Office and ?.cent The address of the initial registered office of this Association is E. 12929 Sprague Avenue, Spokane, Washington 99216, and the name of the registered agent at such address is Kenneth J. Tupper. The written consent of such entity to serve as registered agent is attached to these articles. ARTICLE VI Board of Directors The management of this Association shall be vested in a Board of Directors. The number of directors and the method of selecting or removing directors shall be fixed by the Bylaws of this Association; provided, that the initial directors shall be three(3) in number and their names and addresses are: Name Address 1. Kenneth J. Tupper E. 1j929 Sprague Ave. Spokane, WA 99206 -2- NO.646 P03 09/23/94 09:51 WITHERSPOON 8 KELLEY -. 509 324347E 2. David W. Renz 12929 Sprague Ave. Spokane, WA 99206 3. Sharon L. Tupper 12329 Sprague Ave. Sookane, WA 99206 The initial directors shall serve until the first organizational meeting of the Board of Directors and until their successors are appointed and qualified. ARTICLE VII Bylaws The Board of Directors is authorized '_c, make, alter, amend, or repeal the Bylaws of this Association and members shall have the power to alter, amend, or repeal such Dylaws only as provided therein. ARTICLE VIII Limitations This Association shall have no capital stock. In the event there be surplus funds of this Association, the same may, as fixed by the Bylaws or by resolution of the Board of Directors, inure in whole or in part to the benefit of, or be distributable to the members of the Association in proportion to their voting rights. ARTICLE IX Transactions Involving D_r= =tors 1. No contracts or other transactions between this Association and any other corporation, and no act of this Association shall in any way be affected or invalidated by the fact that any director of this Association is pecuniarily or otherwise interested in, or is a trustee, director, or officer of, such other corporation. '2. Any director, i:dividually, or any firm of which any trustee may be a member, may be a party to, or may be pecuniarily or otherwise interested any contracts or -3- NO.646 D04 09/23/94 09:51 WITHERSPOON 8 KELLEY » 509 324347E transactions of the Association; provided, that the fact that such director or such firm is so interested s : be disclosed to or shall have been known by the Board of Directors or a majority thereof. ARTICLE X Distributions upon Dissolution Upon any dissolution of this Association under provisions of the laws of the state of Washington: for nonprofit corpo- rations, all of its assets remaining after pay7ent of creditors shall be distributed to the members __ the Association in proportion to their voting rights. ARTICLE XI Amendments This Association reserves the rich. amend, alter, change, or repeal any provision contained t.. t: se Articles of Incorporation in any manner now or herea'_•_.__ prescribed or permitted by statute. ARTICLE XII Members The Association shall have two (2) :inns° c' members, as described in Article III, Section 4 of the Cc'_': >nts. Members shall consist of all persons described _.. ..:_ III of the Covenants. Votes shall be cast in accordance with Article III, Sections 4, 5, and 6 of the Covenants. Memberships shall be transferable solely in accordance with Article III, Section 3 of the Covenants. All rights and responsibilities expressed herein and in the Bylaws shall be binding on the members. ,7MR/9409.004 -4- NO. 646 1705 09/23/94 09:52 WITHERSPOON 8 KELLEY -. 509 324347E: ARTICLE XIV Dissenting Members Dissenting members shall have no special __:-:ht of return of share of assets. ARTICLE XV Indemnity To the maximum extent permitted by law including, without limitation, RCW 24.06.025, as amended, none c= the directors of this corporation shall be personally liable '_c the corporation or its members for monetary damages for : :: as a director, except for acts or omissions that involve in.r.._ional misconduct by a director, or a knowing violation of iar by a director, or for any transaction from which the director will personally receive a benefit in money, property or services to which the director is not legally entitled. ARTICLE XVI Incorporator The name and address of the incorporator Name Add:es= Stanley R. Schultz DATED: \\O) ) , 1994. I i 1 i I STANLEY R. SCHULTZ, = ncorporator -5- 1100 U.S. San): Building West 422 Riv_r_de Avenue Spokane, Wash`::cton 99201 - 0390 NO.646 D06 09/23/94 09:52 WITHERSPOON & KELLEY -. 509 324347E KENNETH J. TUPPER consents to serve as E eyed agent in the state of Washington for RIDGEMONT fl 3RD AND 4TH ADDITION HOMEOWNERS ASSOCIATION. Kenneth ^per understands that as agent for the Association, it will be i__ responsibility to accept service of process in the name of the Association; to forward all mail and license renewals to the appropriate officer(s) of the Association; and to immediattily notify the Office of the Secretary of State of its _esl9: :fion or of any changes in the address of the re ;istere_ _l=ice of the Association for which it is agent. DATED: _\ U JMR/9409.004 CONSENT TO APPOINTMENT AS REGISTERED AGENT Address: E. 1292= -6- 1994. Registers '. Spokane, .venue NO.646 P07 FROM :COUNTY CIUIL RTTY, TO: ARTICLES OF INCORPORATION OF RIDGEMONT NORTH 3RD AND 4TH ADDITION HOMEOWNERS ASSOCIATION The undersigned, acting as an incorporator under the and Mutual Corporation Act ), adopts and executes the Washington Nonprofit Miscellaneous (Revised Code of Washington 24.03 following Articles of Incorporation. ARTICLE I 509 3243478 SEP 1994 11:08PM #114 P.07 FILED STATE OF WASHWON SEP 161 4 RALPH IJWMO SECRETARY OF STATE Name The name of this corporation is RIDGEMONT ESTATES NORTH 3RD AND 4TH ADDITION HOMEOWNERS ASSOCIATION (hereinafter " Association"). ARTICLE II Duration The period of duration of this Association shall be perpetual ARTICLE 7I7. Purposes The purposes for which this Association, a nonprofit organization, is formed are 1. To provide for the repair, care, maintenance, management and operation of real property described in that certain Declaration of Covenants, Conditions, and 'Restrictions for Ridgemont Estates North Third and Fourth Additions and recorded in the records of the Spokane County Auditor as amended from time to time ( "Covenants "); 2. To engage in any other lawful activity which may hereafter be authorized frwa time to time by the Board of Directors; and FROM:COUNTY CIVIL ATTY. TO: Name Address 509 3243478 SEP . 1994 11 :08RM #114 P.08 3, To perform the purposes of the Association set forth in said Covenants. ARTICLE IV Powers This Association shall have the power to do all lawful acts or things necessary, appropriate, or desirable to carry out and in furtherance of its purposes described in Article II:I and those purposes which are consistent with the Washington Nonprofit Corporation Act. This Association shall also have all rights and powers now given to nonprofit corporations generally under the laws of the State of Washington, and all further and broader rights and powers which may, in the future, be given to nonprofit corporations generally under the laws of the State of Washington. ARTICLE V Reaistered Office and Anent The address of the initial registered office of this Association is E. 12929 Sprague Avenue, Spokane, Washington 99216, and the name of the registered agent at such address is Kenneth J. Tupper. The written consent of such entity to serve as registered agent is attached to these articles. ARTICLE VI Board of Directors The management of this Association shall be vested in a Board of Directors. The number of directors and the method of selecting or removing directors shall be fixed by tho Bylaws of this Association; provided, that the initial directors shall be three(3) in number and their names and addresses are: 1. Kenneth J. Tupper E. 12929 Sprague Ave. Spokane, WA 99106 -9- FROM :COUNTY CIUIL ATTY. TO: 2. David W. Rent 3. Sharon L. Tupper 509 3243478 SEP , 1994 11 :09RM' #114 P.09 The initial directors shall serve until the first organizational meeting of the Board of Directors and until their successors are appointed and qualified. ARTICLE VII Bylaws The Board of Directors is authorized to make, alter, amend, or repeal the Bylaws .of this Association and' members shall have the power to alter, amend, or repeal such Bylaws only as provided therein. ARTICLE VIII Limitation's This Association shall have no capital stock. In the event there be surplus funds of this Association, tho same may, as fixed by the Bylaws or by resolution of. the Board of Directors, inure in whole or in part to the benefit of, or be distributable to the members of the Association in proportion to their voting rights. ARTICLE IX T at sac - igns .I-Ilvol.yina Directors 1. No contracts or other transactions between this Association and any other corporation, and no act of this Association shall in any way be affected or invalidated by the fact that any director of this Association is pecuniarily or otherwise interested in, or is a trustee, director, or officer of, such other corporation. 2. Any director, individually,, or any firm of which any trustee may be a member, may be a party to, or may be pecuniarily or otherwise interested in, any contracts 3 - 12929 Sprague Ave. Spokane, wA 99206 12929 Sprague Ave. Spokane, WA 99206 o r FROM :COUNTY CIUIL ATTY. TO: 509 3243478 SEP 1994 11 :09RM 0114 P.10 transactions of the Association; provided, that the fact that such director or such firm is so interested shall be disclosed to or shall have been known by the Board of Directors or a majority thereof. ARTICLE X Distributions upon Disaolation Upon any dissolution of. this Association under provisions of the laws of the state of Washington for nonprofit corpo- rations, all of its assets remaining after payment of creditors shall be distributed to the members of the Association in proportion to their voting rights. ARTICLE XI Amendments This Association reserves the right to amend, alter, change, or repeal any provision contained in these Articles of Incorporation in any manner now or hereafter prescribed or permitted by statute. ARTICLE XII Members The Association shall have two (2) classes of members, an described in Article I11, Section 4 of the Covenants. Members shall consist of all persons described in Article III of the Covenants. Votes shall be cast in accordance with Article III, Sections 4, 5, and 6 of the Covenants. Memberships shall be transferable solely in accordance with Article III, Section 3 of the Covenants. All rights and responsibilities expressed herein and in the Bylaws shall be binding on the members. -4- 9409200210 tb 1 a Declaration of Covenant '� o. } In consideration of the approval by Spokane County of RIDGEMONT ESTATES NORTH 3RD ADDITaQN, fbe jeip to referred to as the "plat "), undersigned covenants and agrees that: �Jtcr L U i i4 WUNfY AUDI The Ridgemont Estates North 3rd and 4th Home Owners Association or their successors in intereStPftf�Y6r jtr, *drainage facilities and pond within Utility Lot "B" as shown in the Final Plat documents. The Ridgemont Estates North 3rd and 4th Home Owners Association or their successors in interest shall be responsible for payment of all claims and other liabilities which may become due for said tracts, including electrical and water charges. Spokane County and its authorized agents arc hereby granted the right to ingress and egress to, over and from all public drainage easements and Utility Lot "B" for the purposes of inspection and emergency maintenance of drainage ponds and other maintenance facilities, if not properly maintained by the property owner or the Ridgemont Estates North 3rd and 4th Home Owners Association or their successors in interest. Spokane County does not accept the responsibility to inspect or maintain the drainage facilities within Utility Lot "B ", the drainage easements or drainage facilities located on private lots, nor does the County accept any liability for any failure by the lot owner (s) or the Ridgemont Estates North 3rd and 4th Home Owners Association, or their successors in interest, to properly maintain such areas. The property owners within this plat shall be held responsible for keeping open and maintaining the surface path of natural or man- made drainage flow over and across their respective properties. If the property owner fails to maintain the surface path of natural or man -made drainage flow, or the drainage swale, a notice of such failure may be given to the property owner. If not corrected within the period indicated on said notice, Spokane County has the right to correct the maintenance failure, or have it corrected, at the expense of the property owner. The property owner or authorized representative shall inform each succeeding purchaser of all drainage easements on the property and their responsibility for maintaining surface drainage paths and swales within said easements. Spokane County does not accept the responsibility of maintaining the drainage facilities within Utility Lot "B ", drainage easements, nor the responsibility for any damage whatsoever, including, but not limited to, inverse condemnation to any properties due to deficient construction and/or maintenance of drainage courses in drainage easements on private property. Any building that is constructed on a lot in this plat shall be set at such an elevation so as to provide positive drainage away from any drainage entry point to the building (including but not Limited to a window well, a window unprotected by a window well, or a doorway). Said positive drainage shall consist of a minimum slope of 3% away from the building for a distance of at least 10 feet from the building. The lots shall be graded so that either a)all runoff is routed away from building, and conveyed over the lot to a natural drainage swale or approved drainage facility, or b) drainage intercepted on the lot is disposed of on the lot in an approved drainage facility. The approved drainage facility shall be constructed in accordance with the approved plans on file at the County Engineer's Office. Any revisions to the approved drainage plans must be approved by the County Engineer's office prior to construction of said revisions. HOME OW ERS AA SOC bN ACKNOWLEDGMENT STATE OF WASHINGTON)SS COUNTY OF SPOKANE ) On t h i s 7 r ` t ' day otS r t Q t o r 1994 before me personally appeared e4t■-rn■ orbvc \T ,6 known to be _ nro cic \.. # . , of Ridgemont Estates North 3rd and 4th Home Owners Association as the individual who executed the tQtthin and foregoing instrument and acknowledged the same to bets free and voluntary act and deed for the uses and purposes herein mentioned. IN WITNESS WHEREOF, I have hereunto set my hand and affixed m seal the day and year first above written. My commission expire3� in andTr the State of Washington n (.1 a Washington c /Kg a zs ) The stormwater drainage retention pond located within Utility Lot "B" of Ridgemont Estates North - 3rd Addition (labeled "Drainage Pond 3A" on the plat's Drainage Map) shall be maintained by the Homeowners' Association in accordance with the recommended schedule below. This maintenance plan and schedule is only a rough guide; the intent is to keep the stormwater retention area fully functional and maintained as a neighborhood asset. The grass should be kept healthy and at lawn height, weed growth should be restricted, and drywell grates must be kept clear and unobstructed. MAINTENANCE TASK I. Sumner (March - October) Mowing Watering 9409200212 MAINTENANCE PLAN UUtin I l Un for STORMWATER RETENTION POND "3A" SPOKANE COUNTY, WN. FREOUENCY Weekly or as necessary to keep grass depth to 4" or shorter !Dry Periods: Every day for 1 hour min. *Otherwise, water as necessary to keep grass green & healthy Weeding Remove noxious weeds as they appear. "weed & feed" twice/year Twice per year As necessary, including end of autumn Fertilizing Raking Clear Drywell Grates Inspect drywells, remove Annually any silt and debris collected within 11. Winter ( November - February) Clear snow and ice off drywell grates Remove debris monthly and after rainstorms. As necessary to keep grates clear H OME OWNS SO TtQN VQ—jr ACKNOWLEDGMENT STATE OF WASHINGTON)SS COUNTY OF SPOKANE ) On thi C pftito ' q j 19948 fore me personally appear4 ivo -k-n r' known to be o " " �t�i�tF. , of Rid emont Estates North 3rd and 4th Home Owners Askociation as the individual who executed the within and foregoing instrument and acknowledged the same to beY\is free and voluntary act and deed for the uses and purposes herein mentioned. IN WITNESS WHEREOF, I have hereunto set my hand and affixed my seal the day and year first above written. My commission expires Sit papn 4 . Icggc FN fi ORDED SEP 2 0 1994 e State of Washington Washington FAX COVER SH1 Spokane County Lngineer't Tice - Third Floor Fax N 324 -3478 1026 W (BROADWAY SPOKANE, WA 99260 - P4IONE',x (509) 456 -3610 • - DATE: i t - 9S - 1 ` FAX #: ° 1a G 132 -Z COMPANY: .c'iib �a G CITY / STATE: NUMBER OF PAGES (INCLUDING COVER SHEET): 4 FROM: .i1T dur-re fr MESSAGE /SPECIAL INSTRUCTION: a 7 AC IVE6D / IOIe y 3 _!r-ran 3 ? d,,e Re 4 cee S Office of the County Engineer Spokane County, Washington 25 August 1994 To: From: Development Engineering services RE: RIDGEMONT ESTATES NORTH 3RD ADDITION Drainage Language of Plat Dedication & Covenants Spokane County No. P -16848 Plat Dedication Utility Lot "B" as shown in this plat is hereby dedicated to the HOA created by document recorded rdatel under State UBI number Utility Lot "B" may not be sold or transferred, regardless of any provisions in the covenants to the contrary without expressed written approval by Spokane County, and shall be considered subservient estates to all lots within this plat for the purpose of real estate taxes. Should HOA be terminated for any reason, the successors in interest for Utility Lot "B" shall be the individual lot owners of lots within this plat, or their successors in interest, who are members of the HOA at the time of said termination. Drainage easements, as platted and shown hereon, which are for the purposes of installing, operating and maintaining drainage swales and drainage facilities to dispose of runoff, are hereby granted to Spokane County, the public, and the Homeowners Association. No structures shall be constructed thereon. The HOA shall be responsible for payment of claims and other liabilities which may become due for said tract(s). The County of Spokane is hereby granted the right to ingress and egress to all drainage easements. Lots 4 through 8, inclusive, of Block 2 shall have the lowest finished grade elevation adjacent to structure at or above 2021.0. A certificate from a licensed surveyor needs to be provided which demonstrates conformance with this criteria. A floodplain permit shall be obtained for these lots. The HOA shall be responsible for maintenance of the stormwater retention pond 3A within Utility Lot "B ", as per document recorded under Auditor's Document No. which by reference is made a part hereof. The HOA shall be responsible for maintenance of the stormwater retention pond and associated drainage facilities within the easement as per document recorded under Auditor's Document No. which by reference is made a part hereof. The drainage easements and tracts are subject to the separate Declaration of Covenant as recorded under Auditor's Document No. which by reference is made a part hereof. 4 t46,12. G�S" /,� (-a* B cc, o,-cc,,,,..o 04.4m...di / 0 (cat. Declaration of Covenant In consideration of the approval by Spokane County of RIDGEMONT ESTATES NORTH 3RD ADDITION, (hereinafter referred to as the "plat"), undersigned covenants and agrees that: The HOA or their successors in interest shall maintain the drainage facilities and pond within Utility Lot "B" as shown in the Final Plat documents. The HOA. or their successors in interest shall be responsible for payment of all claims and other liabilities which may become due for said tracts, including electrical and water charges. Spokane County and its authorized agents are hereby granted the right to ingress and egress to, over and from all public drainage easements and Utility Lot "B" for the purposes of inspection and emergency maintenance of drainage ponds and other maintenance facilities, if not properly maintained by the property owner or the HOA or their successors in interest. Spokane County does not accept the responsibility to inspect or maintain the drainage facilities within Utility Lot the drainage easements or drainage facilities located on private lots, nor does the County accept any liability for any failure by the lot owner(s) or the HOA , or their successors in interest, to properly maintain such areas. The property owners within this plat shall be held responsible for keeping open and maintaining the surface path of natural or man -made drainage flow over and across their respective properties. If the property owner fails to maintain the surface path of natural or man -made drainage flow, or the drainage swale, a notice of such failure may be given to the property owner. If not corrected within the.period indicated on said notice, Spokane County has the right to correct the maintenance failure, or have it corrected, at the expense of the property owner. The property owner or authorized representative shall inform each succeeding purchaser of all drainage easements on the property and their responsibility for maintaining surface drainage paths and swales within said easements. Spokane County does not accept the responsibility of maintaining the drainage facilities within Utility Lot "B ", drainage easements, nor the responsibility for any damage whatsoever, including, but not limited to, inverse condemnation to any properties due to deficient construction and /or maintenance of drainage courses in drainage easements on private property. Any building that is constructed on a lot in this plat shall be set at such an elevation so as to provide positive drainage away from any drainage entry point to the building (including but not limited to a window well, a window unprotected by a window well, or a doorway). Said positive drainage shall consist of a minimum slope of 3% away from the building for a distance of at least 10 feet from the building. The lots shall be graded so that either a) all runoff is routed away from the building, and conveyed over the lot to a natural drainage swale or approved drainage facility, or b) drainage intercepted on the lot is disposed of on the lot in an approved drainage facility. The approved drainage facility shall be constructed in accordance with the approved plans on file at the County Engineer's Office. Any revisions to the approved drainage plans must be approved by the County Engineer's Office prior to construction of said revisions. 1. Summer (March - October) Wa terin g Inspect drywells, remove any Annually silt and debris collected within 1I. Winter (November - February) MAINTENANCE PLAN for STORMWATER RETENTION POND "3A" The stormwater drainage retention pond located within Utility Lot "B" of Ridgemont Estates North - 3rd Addition (labeled "Drainage Pond 3A" on the plat's Drainage Map) shall be maintained by the Homeowners' Association in accordance with the recommended maintenance schedule below. This maintenance plan and schedule is only a rough guide; the intent is to keep the stormwater retention arca fully functional and maintained as a neighborhood asset. The grass should be kept healthy and at lawn height, weed growth should be restricted, and drywell grates must be kept clear and unobstructed. MAINTENANCE TASK FREOUENCY Mowing Weekly or as necessary to keep grass depth to 4" or shorter * Dry Periods: Every 4 days for 1 hour min. * Otherwise, water as necessary to keep grass green & healthy Weeding Remove noxious weeds as they appear; "weed & feed" twice/year Fertilizing Twice per year Raking As necessary, incl. end of autumn Clear Drywell Grates Remove debris monthly & after rainstorms Clear snow & ice off drywell grates As necessary to keep grates clear S PO K A N E OFFICE OF THE COUNTY ENGINEER Ronald C. Hormann, P.E., County Engineer Dennis M. Scott, P.E., Director August 24, 1994 Dave Renz TDC 12929 E. Sprague Spokane, WA 99216 Subject: Ridgemont Estates North 3rd & 4th Add. Final Plat Spokane County No. P- 1684B, C Dear Dave: The off -site regional retention pond, located just south of the intersection of 16th Ave & Shamrock Rd. will continue to receive stormwater from the "Ridgemont" area, which also includes Ridgemont Estates North 3rd & 4th Add. Therefore, the maintenance responsiblities of this pond need to be formalized as part of the final plat. The easement documents applicable to the off -site regional retention pond are currently under review within the County. As a brief summary of the overall requirements regarding the off -site pond, the existing easement will need to be replaced with a new drainage easement which will encompass a slightly different area, and will have easement language clearly defining maintenance responsibilities. The off -site regional retention pond is to be maintained by a homeowner's association which needs to be formed as a joint association within Ridgemont Estates North 3rd & 4th Addition. As was stated in my letter dated June 20, 1994, this association needs to be formed before the plat can be finalized. Please provide me a copy of the final association documents as soon as the formation is complete. Sincerely. Spokane County Engineers Dean Franz, P.E. Plans Review Engineer cc: Dave Berto project files C O U N4 T Y A DIVISION OF THE PUBLIC WORKS DEPARTMENT 1026 W. Broadway Ave. • Spokane, WA 99260 -0170 • (509) 456 -3600 FAX: (509) 324 -3478 TDD: (509) 324 -3166 S P O r< N E OFFICE OF THE COUNTY ENGINEER Ronald C. Hormann, P.E., County Engineer August 24, 1994 Doug Christenson Simpson Engineers, Inc. N. 909 Argonne Rd. Spokane, WA 99212 Subject: Ridgemont Estates North 3rd Addition Spokane County No. P -1684B Dear Doug:: The road and drainage plans and calculations are approved. Enclosed is a set of sepias, stamped "Approved For Construction." The original plan mylar will be kept on file at the County records. In accordance with Section 2.02 A.3 of the SCRC, this approval is valid until August 24, 1996. If facilities are not constructed by then, you may request an extension for an additional two years; however, the plans may need to be revised to reflect standards current at the time of the extension request. Please be advised that if the public road and drainage facilities are constructed without surety, that the plat cannot be finalized until either: a) the public road and drainage facilities are constructed and accepted, and the roads established by the County Commissioners; or b) adequate surety for any remaining public work is posted. If you have any questions, please contact me at 456 -3600. Thank you. Sincerely, Spokane County Egg Dean Franz, P.E. Plans Review Engineer encls: 24" x 36" sepias of approved plans cc: project file A DIVISION OF THE PUBLIC WORKS DEPARTMENT Denrus M. Scott, P.E., Director 1026 W. Broadway Ave. • Spokane, WA 99260 -0170 • (509) 456 -3600 FAX: (509) 324-3478 TDD: (509) 324 -3166 96 0330 BEFORE 'HIE BOARD OF COUNTY COMMISSIONAMET S,, OKAN { SIIINGTON IN THE MAT'T'ER OF ESTABLISHMENT Old 3 23 Ili 1 96 OF RENZ AND RADCO DRIVES IN RIDGEMONT ) R E S O L U T I O N - ESTATES 3R1) AND 4TH ADDITION NOS. 1684 B & C ,\) i it, t nun+AE71S T A B L I S 11 M E N T COUNTY ENGINEER'S ROAD FILE NO. 412 "0" �• Ilitfi SI't�'• COMM WA511. PF.Pllt r RESOLUTION NO. This being the day set for the hearing on Spokane County Engineer's Report on the proposed establishment of RENZ DRIVE AND RADCO DRIVE, proceedings for which were initiated by PRELIMINARY RESOLUTION NO. 96 -0229, and it appearing to the Board on proof duly made that Notice of Hearing was published and posted in the manner and for the time required by law, and the Board after examining the report and maps of the Spokane County Engineer and all claims and papers on file and after hearing all other evidence adduced at the hearing; and IT FURTI IER APPEARING that the rights of way have been dedicated as public roads 50 feet wide, and that said road are a public necessity and the same should be opened and established as County roads. THEREFORE BE IT RESOLVED by the Board of County Commissioners of Spokane County, Washington, that the hereinafter described roads as reported by the Spokane County Engineer on the 2nd day of April, 1996, being more particularly described as follows: RENZ DRIVE - 50 feet wide, from the westerly line of Lot 4 Block 7 (one foot strip) in Ridgemont Estates North 2nd Addition to the northerly line of Lot 2 Block 3 (one foot strip) in Ridgemont Estates North 3rd Addition. RADCO DRIVE - 50 feet wide, from the westerly line of Lot 3 Block 7 (one foot strip) in Ridgemont Estates North 2nd Addition northerly to and including cul -de -sac in Ridgemont Estates North 4th Addition. J ATTEST: L I\vVu \a1 \rmlo dial \cnpdst.c.em Located in the Northwest Quarter (NW 114) of Section 25, Township 25 North, Range 44 E.W.M. and as shown by the records and traps on file in the Office of the Spokane County Engineer be and the same hereby are established as County roads and the same shall be known as RENZ DRIVE AND RADCO DRIVE, Road File No. 412 "0". The road supervisor of the road district in which the said roads are located is hereby directed to open and maintain the same for public use and travel. BED' FURTIIER RESOLVED that the one foot strips described as follows are hereby dedicated for pubic road purposes: Lot 4 Block 7 in Ridgemont Estates North 2nd Addition Lot 2 Block 3 in Ridgemont Estates North 3rd Addition Lot 3 Block 7 in Ridgemont Estates North 2nd Addition IAM E; DQNAIIUE RK OF THE BOARD SANNE MONTAGUE, DEPUTY W.- 9604050356 . D e- 6, var.. 4Ii . I $PAOE 9 t8 E COUN'T'Y A PASSED AND ADOPTED by the Board of County Commissioners of Spokane County, Washington this 2nd day of April, 1996. BOARD OF COUNTY COMMISSIONERS OF SPOKANE COUNTY, WASHINGTON ffILLIP D. IIARRIS, CHAIRMAN JOHN S7'EV)xN3 ASSON S P O K A N E DIVISION OF ENGINEERING AND ROADS William A. Johns, P.E., County Engineer Safeco Insurance Company Of America General Insurance Company Of America Home Office: Safeco Plaza Seattle, :WA. 98185 C 0 U N T Y • A DIVISION OF THE PUBLIC WORKS DEPARTMENT Dennis M. Scott, P.E., Director RE: Ridgemont Estates North 3rd Addition P1684B T.D.C. Inc. Dear Sir or Madam: Please be advised that the Subdivision Roadway Improvement Bond No.5800807 issued by your company as surety for installations of roads and associated drainage facilities for the above mentioned plat, dated February 16, 1996 in the current amount of $14,570.00 may now be released. If you have any questions, feel free to call our office Very truly yours, Bill Johns, P.E. Spokane County Engineer David A. Berto Plat Compliance Surveyor 1026 W. Broadway Ave. • Spokane, WA 99260-0170 • (509) 456 -3600 FAX: (509) 324 -3478 TDD: (509) 324-3166 Form 327 -C R OFFILE OF COUNTY ENGINPER SPOKANE COUNTY, WASHINGTON Data9 19* Inter- office Comm nicatio T�� � .(ice Fromm / / v�y /^ / ,/� �A( ( ) / � Subject / [ : � ./ O Y d _/ YA swDi `I/ 7 YLo .c3 a � cc Q ` --C-c `` ( i z1L. txve ITEMS: 1) Sa Al E rn .r.,_ r I )7. 9 y99),o9 l • 9) u'r for i4-rrn ,r.Mrv. 42•1 _ iA) (ma, s rc .r.f Li 1-,n IIarrl- ;Zvi Iri4 SEWER INFORMATION: • AIR TSSTED DATE: U PASS 0 FAIL MANDRELL: DATE: 0 PASS 0 PAIL TV INSPECTION REQUEST: DATE: .._. _ INSPECTOR'S SIGNATURE: %G ' r r — , , l - era.\ . Plaate PUNCH vFFECE 1g-mm SIPONABIE to, CO Th V ENOttviLRIS PROIECTNAME.: Est A/.,rtl, Irl i Hbl PAL". INSPECTOR: 5b r„), DATE: ii /z./9'i CONTRACTOR AND /OR SUBCONTRACTORS: Ellen &can I„ /arid ,4 1a /& • • , . �/ Remelt Radw Rt rP,n/,tt 4,4.4 Cnti rrok• . CL..d„ p:,iA&I uJs..,- +&ncuf) Sa St10 / 5La 1 1 2) 13,r F.1rrr.I En,1 rrn all in v er'AS ni 5inrn, r-L- Ai,.a r ti /...r/ 3) l Cog.. E 0 t- `) R G rnsf5lrr,..- f- •s) Fin.'- & ro,+ g l,1, /e ,/ Al.' Z ., 4) skre )e4 : r4.4 7Ll 0 1'7, 7) CJn sirrer'f: and ol r7rcesS rnenrd nr, Ih vi4 3r 3 &t tI ;I Ili ) 0 :45 9 )1.4 a P rn e Ln 14eS . �1 C1.7)1 5 br1.. e.76 D I'*i rr,,,1 S'ha 21/9 l R. # 2r JcL 5 'Ipn ,,l i t) Fin; S 4 5 Liyie. Ilrr.e. Glri7 in e.Q. grrrlri 13) T „31,aII CJV7in link cencc_ Arn,,» -1 14,4:1 nr,s, in& R doe r 1 . :'TV SEWER INFORMATION: Ant , TES " D: DATE: MANDRELI •: DATE: TV:-INSYECTION REQUEST: INSPECTOR'S SIGNATURE: PDarto PURGER Di Fr OE or -1,k mg SPOKANE COINWPT ER MAm PROJECT NAME: Rid-, e r»o. Nor EL E3 3.J *$ '/m add., INSPECTOR DATE: n / z /9i CONTRACTOR AND /OR SUBCONTRACTORS: I T E M S : IM) ZnSha!/ trrt i rn1 Si5 • ,.. in !.l �,• /- p n,, / ! n % R a PASS 0 FAIL o PASS 0 FAIL DATE EThar-W P121WEE ser o 'n Ror1a- �SPO H COMMIT EINOLIMEIERS PROJECT NAME: R,J/e .r,. Esi k/n..a-1 3�.1 HE4 al,L. INSPECTOR: 56 ,0/0 DATE: se/z/ 9 ti � CONTRACTOR AND /OR SUBCONTRACTORS: Eller, Bacon S., /arid 41a/ ITEMS: 1) s ! J -! J Rc R.dw at - • ��...'v �. r.... .. r✓ew�. r 4t 44 iY TN Ir info 2) -8.. •._.i•■••_m t..,e..._ U^ r t _ . .L ... I4 jam- 44— I /J . Y/. C,nl. `� S �IrTTZ i2 I v} t.... . f _._P C..1 (Tel" .,4) e ..,. :T Et 7) F,,.I , n4, t: -a , • • ., 1 /•• II,1 me P, 4MY, Jtk ,ia elq•SIn. !Wfl_rrat n •1rn 1 4- t C o�-I 'L 2 o PASS 0 FAIL o PASS 0 FAIL _ .. lr. l ^+—r. � L ar. SEWER INFORMATION: • AIR TESTED: DATE: MANDRELL: DATE: TV II4SYECTION REQUEST: DATE: INSPECTOR'S SIGNATURE: . .~ - $ '°.":S:�t'$:i� .::1` r. . :.:_sar:r>R.- -.7'°„';':.- ITEMS: PThinriP PUN= ZIWE +' Z� z OFFICE own t SPOKANE COITLWE ENO_ ENEMAS PROJECT NAME: Rid-, u« N , Est-. Nord. 3 r 4 4, H �t DATE: INSPECTOR: CONTRACTOR AND /OR SUBCONTRACTORS: Ell a. � Bow., -- , I«la—L i5) T i n r - tt- c �, !G,) 64 JAIt ri j SEWER INFORMATION: AIR TESTED: DATE: 0 PASS 0 FAIL MANDRELL: DATE: 0 PASS 0 FAIL TV INSPECTION REQUEST: DATE: INSPECTOR'S SIGNATURE: 1 ij S.CJECT P1694B RIDGEMONT ESTATE NORTH 3RD NAME DAVE BERTC DRAINAGE ITEMS ' Drvweii - Tvice A Drywall - - Noe 3 Grata - Tyce 1 3rat T ype 2 Grata - Tvce 4 Sack 1 i l For :W ) Concrete Inlet C.A. Pice 10" Dia. C. M. P.^0 12 Dia. 7) C.M. Pipe 13" Dia. _, R. Tort. -Je _7" ='recast Manrm i e Solid lid Ditch/209 -..cavation 5) Sod in Utility Lot 3 ON STANDARD DRAINAGE ITEMS Filter Fabric Lining For 5 D.'.J. 4' Chain Link Fence CD'C 3oi ash Block 4" Gravel In Utility Lot A irrigation System In ':t' `., Lot B 55' Cone Cross Gutter Type 1 Monun'nts lair . _aide 3) Street Sins BOND ESTIMATE GRADING. SURFACING. CURB. AND BIDE',JPL'i Rc'ach Grade Top Course Base Course ;asphalt Concrete Curb Type A Cure Type 3 Curb Type R Sidewalk '.0N- STANDARD ROAD I r'EmS UNITS EA /0 E:7 EP CA EA C'! EA LF L= LF /0 -- EA C:+ 1O7,& C`( /o °_r Y, tee; 107, )01, /01, 10% 100 10 ?, so l o 10t L3 )aY teeP, L? 1 EA 107, f9e-x• BY 107, 4e frsfa ` 154 lo`b to EA )07 CY /01. 07 10 Tons /07, 349 L. LF L: SO '!D ine Grading For Maint. Road Lots 4 .,5 -160 /O% T I77 1 159. 26 = -2013 DRAINAGE SUBTOTAL OTHER 3UBT„TAL 1200. 00 6 1500.00 300.00 2 330. 00 & .00.'00 240 1E. 30 1 700. 00 5 =2.00 25. 5tZ1 27. .0 192 `0.00 1 : 0 J 300. 00 l 70 ;04 _41 1300.2 1157.3 232 7 . 9 3RADING AND SURFACING CATE 09 -Pup-94 3. 30 100. `0 S. 70 120.0.0 30.00 30.00 1 0. 00 14.00 14.00 44. 30 S.;90 7.90 7.60 16.40 0087 0. 00 9600. 10 0. 30 S60. 00 1300. 00 3720.00 700.00 _33.0 W 0. 00 iJ. 00 71900. 03 14E0.00 0. 00 10;=7.:= 14=40. 210 900. 00 433'2.00 -00. 00 1614.70 11000. 00 300.51 71341. _411. 00. 0. 210 0. 00 540. '10 18002.30 16202. 20 0.00 23196.90 15364. 14 0.00 0.00 0.00 500.00 0.00 :0.10 0.00 73265.14 Lj 5e I +S 700.013 GRAND TOTAL 145,647.05 ...., =iNAGE ITEMS Drywe:l - Tyoe A Drywell rvae B '=rate - Tvoe ' Grate Tvice .. Grata - Tvoe ' Sack:ill. For OW Concrete Inlet .. I' Pipe 10" Di... ". Aloe 12" Dia. . . _ e _ Dia. C.M. Pine 13' Dia. cast Manhole _) Saiia .1.0 mad STANDARD DRAINAGE ITEMS 7 " 2 aart,_ L :.r.i.ng For 3 D.W. Adjust E., stlna Drywell crates Gravel ?1aLnt. Drive 4" Thick =..7avate & Haul Regional Pond Eine _ride Reoional . =and Fine Grade Drainage Ditch Barrloace Street Signs Rough Brade Top ''.l'rse • Base Course _. sohait Condrete Guru Tvoe A C..rh Tvoe 8 :) C..trg Tvce R , Sidewalk CM-STANDARD ROAD ITEMS BON GRADING. SURFACING. CURB. AND . AL ESTIMATE O..EcT R1534C RIDGE :.1ONT ESTATE �8 -4TH NAME DAVE 3ERTO UNITS uURNIT`/ ;RIC- COST /0 EA 1 1 200. 00 1200. 00 lo;I EA 4 1300. 10 5400. 0I:a Ti*: 300. 00 O. 00 Eq 330. 00 0.00 1070 EA - 5 700.00 1500.10 10 Y0 '. :0 17.50 x'.45. X10 EA 700.00 0.00 ,_r •. 10 0.00 1 7 25.50 0.00 L7 2 0.00 z9 . 00 0.00 -fl 200..10 2'.'2) to 7 .. I . 107 10.00 107:7) J . 7.1 0. 00 107 L? /070 =.A 100 L roL tea/, =3 10`7o L3 /oZ .60 ff LS Jfe4a LS h. RAINAGE :LNTOTHL 14.31iO4.00 104 mei .- ; TH:R 5UST OTZL 4:20.00 /070 CY 107. C`/ C'{ /070 Tons /0;- 3e LF L:= =1C YO GRAND TOTAL 13 1139. 323.4 _1_0. ;'ATE 09- :Auc -94 7 '00.00 20. 00 SO. 0 ;O. 30 14. %13 1 00 20 3. S0 7.:0 7. 50 ._. 4 0 400.00 400. 00 9r0. 00 110407. 00 12,B20. 210 105. 00 0.00 30.00 . .00 0.00 C324B.60 _3995.96 0.00 0.00 0.00 0. '00 0. 211 '0. O.l GRADING AND SURFACING 6894'0.16 1 J 58 C ( S 4Ct =Qd 13.3, ... • LO S P C) K. At M4 E.F. OFRCE OF THE COUNTY ENGINEER William A. Johns, PE, Acting County Engineer Sterlina Aa.c.riation 111 N. Wall Ene.:kane, ia. ,1 1-G 9 E . 7 Dep. Si': .1adaml: A DIVISION OF THE PUBLIC WORKS DEPARTMENT Dennis M. Scott, P.E., Director 7 \ 7 : 7 tar...2 North ;1' T.D.:2.. inc. Februar7 199ti . be advlzed :hat f..a' a Azzlzment #E2 09 E95 17{1 curt.T.:ew az zuretv for tnatallationz foadz and azzocLated drainace faca,L. for 7.ile above rnentioned '2. dated ,- )c . ber 3, 1995, in :he current amount of :1 ma7 acw rel.a=ed, if you lave any :_luear,L fa.e.1 f tc ca" 5LLL 3 Ce-ntv Eng; neen e+Viri Plat CJimpliance 3ur._ 1026W. Broadway Ave. • Spokane, WA 99260-0170 • (509) 456-3600 FAX: (509) 324-3478 TDD: (509) 324-3166 Byt r . Bond No: 5800807 FEB 2 I •. ) SUBDIVISION ROADWAY IMPROVEMENT BOND • . Princi al Helen M Ellar. President (Typed Nameffitle) Surety By. KNOW ALL MEN BY THESE PRESENTS, that ELLER CORPORATION (CONTRACTOR), as "Principal ", and SAFECO INSURANCE COMPANY OF AMERICA (bonding company), a corporation organized and existing under the laws of the State of WASHINGTON, as "Surety", are held and firmly bound unto Spokane County, a political subdivision of the State of Washington, as "Obligee ", in the penal sum of FOURTEEN THOUSAND FIVE HUNDRED SEVENTY DOLLARS (514,570.00), lawful money of the United States of America, for the payment of which the Principal and Surety bind themselves, their heirs, executors, administrators, successors and assigns, jointly and severally firmly by these presents. WHEREAS, said Principal is a contractor to the owner of a tract of land in Spokane County divided and platted into lots and known as RIDGEMONT ESTATES NORTH 03, and being located in Section 25, Township 25 North, Range 44 E.WM., in Spokane County, Washington, and said County has required that a bond be furnished in an amount sufficient to pay the construction costs of grading and surfacing to the approved grades and typical section of the roadways of said plat and the installation of drainage structures and such other work as is incidental and necessary thereto, all in accordance with those Plat Roadway Improvement Specifications and plans dated OCTOBER 15, 1993, and to the satisfaction of the Spokane County Engineer, such improvement to be completed not later than SEPTEMBER 30, 1996, unless such date be extended at the option of the Spokane County Engineer. Upon failure of the Principal to comply with the requirements stated herein wi thin the time authorized, and upon delivery of the written notice thereof by Obligee to Surety, the Surety shall be obliged to the Obligee up to the penal sum of this Bond. The obligation of this Bond shall be kept in full force and effect until, in the opinion of the Obligee, the requirements herein stated have been satisfied, in which event written release will be given by the Obligee, the Obligee having sole right to grant such release SIGNED. SEALED AND DATED this 16TH clay of FEBRUARY. 1996. ELLER CORPORATION SAFECO INSURANCE COMPANY OF AMERICA Lois Stewart, Attorney -in -Fact (Typed Name/Crtle) P u:Eco ® KNOW ALL BY THESE PRESENTS: That SAFECO INSURANCE COMPANY OF AMERICA and corporation. does each hereby appoint ........RICHARD W. MERRILL; WILL HOLT; GEORGE C. SCHROEDER; LINDA its true and lawful attorneys) -in -fact. with full authority to execute on its behalf fidelity and surety bonds or undertakings and other documents of a similar character issued in the course of its business. and 10 bind the respective company thereby. IN WITNESS WHEREOF, SAFECO INSURANCE COMPANY OF AMERICA and GENERAL INSURANCE COMPANY OF AMERICA have each executed and attested these presents S -974/EP V93 th N r: I PBC:. Sf POWER OF ATTORNEY c � t C0!1Pg o 0.PORg r p � e SEAL s 1953 Alt OF WAS'M yJP P NCE COMp CORPORATE C '^ ;Tit SEAL ,3 Z x �a 1923 Ai d ra of Was No. 0946 GENERAL INSURANCE COMPANY OF AMERICA, each a Washington IAM DINNEEN; W. W. %ELLER; LOIS STEWART; JOANNE TONANI; CARLA TICHEY; RHONDA A. NELSON, Spokane, Washingt this 14th day of Oc tober CERTIFICATE IN WITNESS WHEREOF, I have hereunto set my hand and affixed the facsimile seal of said corporation this 16th day of SAFECO INSURANCE COMPANY OF AMERICA GENERAL INSURANCE COMPANY OF AMERICA HOME OFFICE SAFECO PLAZA SEATTLE. WASHINGTON 98185 DAN 0 VcLEAN PRESIDENT Extract from the By -Laws of SAFECO INSURANCE COMPANY OF AMERICA and of GENERAL INSURANCE COMPANY OF AMERICA: "Article V. Section 13. - FIDELITY AND SURETY BONDS ... the President. any Vice President. the Secretary. and any Assistant Vice President appointed for that purpose by the officer in charge of surety operations. shall each have authority to appoint individuals as attorneys -in -fact or under other appropriate tiles with authority to execute an behalf of the company fidelity and surety bonds and other documents of similar character issued by the company in the course of its business . On any instrument making or evidencing such appointment. the signatures may be affixed by facsimile. On any instrument conferring such authority or on any bond or undertaking of the company. the seal. or a facsimile thereof. may be impressed or affixed or in any other manner reproduced: provided, however. that the seal shall not be necessary to the validity of any such instrument or undertaking." Extract from a Resolution of the Board of Directors of SAFECO INSURANCE COMPANY OF AMERICA and of GENERAL INSURANCE COMPANY OF AMERICA adopted July 28. 1970. On any certificate executed by the Secretary or an assistant secretary of the Company setting out. (i) The provisions of Article V. Section 13 of the By - Laws. and (ii) A copy of the power -of- attorney appointment. executed pursuant thereto. and (iii) Certifying that said power -of- attorney appointment is in full force and effect, the signature of the certifying officer may be by facsimile. and the seal of the Company may be a facsimile thereof." I. R. A. Pierson. Secretary of SAFECO INSURANCE COMPANY OF AMERICA and of GENERAL INSURANCE COMPA NV OF AMERICA, do hereby certify that the foregoing extracts of the By -Laws and of a Resolution of the Board of Directors of these corporations. and of a Power of Attorney issued pursuant thereto. are true and correct. and that both the By -Laws. the Resolution and the Power of Attorney are Still in full force and effect. February , 1g 96 . R A. PIERSON, SECRETARY . 19 93 . 0 Registered trademark 01 SAFECO Corporation. S P O K A N DIVISION OF ENGINEERING AND ROADS • Sterling Savings Association 111 N. Wall Spokane,Wa. 99201 -9987 Dear Sir or Madam: C O LT N T Y A DIVISION OF THE PUBLIC WORKS DEPARTMENT William A. Johns, P.E., Acting County Engineer Dennis M. Scott, P.E., Director RE: Ridgemont Estates North 3rd Addition P16848 T.D.C., Inc. Please be advised that the Savings Assignment #82 09 895 issued by your company as surety for installations of roads and associated drainage facilities for the above mentioned plat, dated October 3,1995, in the current amount of $45,900.00 may now be reduced to $14,570.00 (fourteen thousand five hundred seventy U.S. Dollars). If you have any questions, feel free to call our office Very truly yours, Bill Johns, P.E. Spokane County Engineer i David A. Berto Plat Compliance Surveyor 1026 W. Broadway Ave. • Spokane, WA 99260 -0170 • (509) 456 -3600 FAX: (509) 324 -3478 TDD: (509) 324-3166 Inter- office Communication Form 327 -C R. • OFFICE OF COUNTY ENGINEER SPOKANE COUNTY, WASHINGTON Data /) - v i /9' 19 To 1 A frrxik 5...c. iQ . 1 g , ,____)--0 _a ci_e_tioLa . 0 i.x._ ___(---_-_,(____& Nat security purposes only, ` T.D.C. Inc. hereby assigns 1• SPOKANE COUNTY, a political subdivision of the Slate of Washington. the following: This assignment is made as security for the full and faithful performance by of certain roads, monuments end drainage facilities tor Ridaemont Estates North 1rd Add it_inr _ _ ns specified in the typical section and roadway improvement specifications for said project, dated 9stnher 3_, 1 9 5 and on file in the Office of the Spokane County Engineer. Any interest benefits accruing under said savings certificate shall remain the propctly of i T.D.0 Inc. Said savings certificate to be relensed to T _ D. C _ I _ or any other parry only with the prior written consent and agreement of Spokane County PROVIDED, FURhlIER, the undersigned does Punchy nutirotize Sterl inq Savings Association to pay over to Spokane County all or n sufficient portion of the monies in the savings certificate referenced heteinabove upon written documentation being received from the Spokane County Englnear indicating that the purpose:: Int which the savings certificate was nssigned have not been fully and faithfully ',trimmed as requited and n statement of that amount of money which the County Engineer as required and a statement of That umount of stoney which the County Engineer deems necessary to complete such obligation. Upon receipt of such written documentation, T.D.L. Inc. hereby authorizes Srn inD Ca,jngs AcsnriaLio^ to release to Spokane County That amount of money requested up to the matitnum amount In the savings certificate. DATED this 3rd day of V STA1E OF WASHINGTON . ) County of Spokane ) ASSIGNMENT' Savings Certificnte Nuniber 82 09 895 In the face amount of $45.900.00 and held in and by Steri inq Savings Ags_4ciation flank or Washinatnn Private Banking October , 199 5. BANK OF Sterling Savings Association ADDRESS 1 1 1 N. Wa l l Spokane, WA 99201 -9987 Sectetaty [DATED tWe 3rd day of October 199 S fitanch 4G7///7 /7 ( /41 AN. President L On this day personnlly nppeared before sae 0../7 it) P Al 1 LA_ - r to the known to be the ludivido I dent • ed in and who executed the within and foregoing instillment, and acknowledged e ere that he signed the same, a5 1 x[46/ d voluntary act and deed, for the uses and purposes thin mentioned. ` `V�,,...:.. to , // ( }fVEN UNDER Al. M�►, SEAL I t day of IJCtJ2P 19° NOTAQr C 1 i !al) an : TA ' � � � : et . .r kSJUlassfgn.bon 7 JF G Q• Ip t sop * Washington, residing bit Spokane 'nil Illn• J lary h tblic In and for the State Notary Public for the State of Washington State of Washington County of Spokane 1 certify that I know or have satisfactory evidence that Michelle Menne is the person who appeared before me, and said person acknowledged that she signed this instrument on oath stated that she was authorized to execute the instrument and acknowledge it as the Assistant Vice President of Sterlinn, ,Snvinvs Association to be the free and voluntary act of such party for the uses and purposes mentioned in the instrument. Dated: October 3. 1995 K *tnn M. Smith s My Appointment Expires April 25, 1999 tt \at.i1t /3t • y5% ountr% v ./4)gs a `t �nII lilt /t rai • 7A pilBUG � ; J'' �� �t1 1Mar sw S P C D E C A N T E William A. Johns, P.E., Acting County Engineer Source Capital Corporation Via= 901€ _.ndia.na r _P re. 200 Spokan °,pa• 3021. _ear c-_ or Madam: C o u N T Y DIVISION OF ENGINEERING AND ROADS • A DIVISION OF THE PUBLIC WORKS DEPARTMENT Dennis M. Scott, P.E., Director R_daamont tate" North .rd Xad1 icn m - ?lease the advi!ed that the i4ortgace Assiunment it issued by your company as Surety for installations of roads and a., °a=_3ted dra -'[age - ---�_ for the above me - ! _.nod: atai: September 20, in the current amount of $45,900.00 may now be r 1 eaed. if vr.0 have any quaati f el ^rap to cal i our or=_ trul your, 3111 John °, P.E. Spokane County Encineer / David A. Be rto n-r -,i = 7995 D i 2r '11' anro 71 1026W. Broadway Ave. • Spokane, WA 99260-0170 • (509) 456 -3600 FAX: (509) 324-3478 TDD: (509) 324 -3166 S P O I C A 1/4 NT e OFFICE OF THE COUNTY ENGINEER • EL Urc.9 MO: . ;;;Li 2'irz Grat 1 :n :a -J!�13 Inc ana, ault a 2'60 wa. Dear. Eir Lr A DIVISION OF THE PUBLIC WORKS DEPARTMENT Ronald C. Hormann, P.E., County Engineer Dennis M. Scott, P.E., Director -!142elicri is tat os Nor :-ic.le"" • 21664-E -7 . C. C. , PI eRse Le ;cvi s that th;= .1a—tage = i:nmen7 C1#711 t 2 . Y 1 Rd =r •r) filT-anY a = 'Mr E..11a cnci 5 .4.ss-ocla:od alnAge far" Fri:- thF.. :n! :id plat, iiat Sept csmbar 2W, in th.: ..: am T'Z.O. 00 May rocuced to - -.60. 00 ..ro.-ty ia 1Cl43ar,t nirie hundrd E. aro: lt yOU .V9 arty guest or.s, t r to call otir H.or man n. P. E. Scone T.'our.ty Eng irieer David A. Bert° Plat CompliAnc= surveyor 1026W. Broadway Ave. • Spokane, WA 99260-0170 • (509) 456-3600 FAX: (509) 324-3478 TDD: (509) 324-3166 1ST BOND REDUCTION PROJECT P16848 RIDGEMONT ESTATE NORTH 3RD NAME_ DAVE BERTO DRAINAGE ITEMS 1) Drywell - Type A 1) Drywell - Type B,@ 10'/. 3) Grate - Type 1 4) Grate Type 2 @ 1 5) Grate - Type 4 @ 1051 6) Backfill For DW @ 10% 7) Concrete Inlet @ 1051 8) C.M. Pipe 10" Dia. @ 10?.. 9) C.M. Pipe 12" Dia. 10) C.M. Pipe 15" Dia. 11) R. Conc Pipe 27" 0 10% 12) Precast Manhole @ 10?. 13) Solid lid 14) Ditch /208 Excavation @ 20% 15) Sod In Utility Lot B 0 100%. NON STANDARD DRAINAGE ITEMS UNITS EA EA EA ER EA CY EA LF LF LF LF EA EA CY SF 1) Filter Fabric Lining For 6 D.W. @ 10% LS 2) 4' Chain Link Fence 0 100)1 LF 3) Conc Splash Block @ 10'/. EA 4) 4" Gravel In Utility Lot A @ 100;1 SY 5) Irrigation System In Utility Lot B @ 100% LS 6) 55' Conc Cross Gutter Type 1 @ 10011 LS 16) Monuments @ 100% 17) Barricade 18) Street Signs GRADING, SURFACING, CURB, AND SIDEWALK 19) Rough Grade @ 10% 20) Top Course @ 10% 21) Base Course 22) Asphalt Concrete @ 10'/. 23) Curb Type A @ 30% 24) Curb Type B 25) Curb Type R 26) Sidewalk NON - STANDARD ROAD ITEMS 1) Fine Grading For Maint. Road Lots 4 & 5 @ 100% 3) 4) DRAINAGE SUBTOTAL EA LF EA OTHER SUBTOTAL CY CY CY Tons LF LF LF SO YD LS GRAND TOTAL QUANITY PRICE 1200.00 0.6 1600.00 300.00 0.2 330.00 0.6 300.00 24 15.50 0. 1 700.00 0.6 22.00 25.50 27.50 19.2 50.00 0.1 1450.00 300. 00 211.852 10.00 21200 0.70 604 0. 1 241 180.02 115.73 52.72 232.79 3 180.00 30.00 80.00 GRADING AND SURFACING DATE 08- Oct -94 8.00 100.00 6.70 COST 0.00 960.00 0.00 66.00 180.00 372.00 70.00 13.20 0.00 0.00 960.00 145.00 0.00 2118.52 14840. 00 90.00 4832.00 10.00 1614.70 11000.00 300.61 37572.03 540.00 0.00 0.00 540. 00 10.00 1800.20 14.00 1620.22 14.00 0.00 44.00 2319.68 6.60 1536.41 7.90 0.00 7.60 0.00 16.40 0.00 0.00 500.00 0.00 0.00 7776.51 45,888.'% Inter - office Communication r„ /fie Subjer+ Form 327-C.R. OFFICE OF COUNTY ENGINEER SPOKANE COUNTY, WASHINGTON n Data 1 11) ' 19 From t-c %7 zCGC'(f __eQ CJECT P16848 RIDGEi'iONT ESTATE NORTH 3RD NAME DAVE BE RTO DRAINAGE ITEMS Drvweli - Tvpe A Oryweli - 7vo? 3 Graga - Type 1 3ra:a T yne Grate - Tvae 4 Sackr "ill For OW Concreta inlet C.M. Pipe 10" Dia. C.M. -ice 12" Dia. 0) C.M. Pine 15" Dia. .. R. Conc. =ice =7" 1) Precast Manhole _. Solid .id -. Ditch/E08 =: <cavation .) Sod In Utility Lot 3 ON S TANDARD DRAINAGE ITEMS .3r \ION- STANDARD RCAD I ;TENS 1) Rine Grading For Maint. Road Lots 4 .45 /0070L:3 ) 3 ) Filter Fabric. Lining For ; D.W. 4' Chain Link Fence Conc 3olaash Block 4" Gravel In Utility Lot A Irrigation system In 'utili _ot 3 35' Conc Cross Gutter- Type 1 Monumonts 3arr _s.r'a Street Sions Rough Srada Too Course Base Co11rs4 Asphalt Concrete Curb 7voe A Curb Type 4 Curb Type R Sidewalk BOND ESTIMATE GRADING. SURFACING, CURBB. AND SIDEWALK UNITS EA 7p 7„ EA EA 1074 )07, EA jot, C7 10% EA l0'b LF WI is L (07 LF 1 07 . E `" EP Z0 CY SF 1070 LS /Oa L- 10 7o[A 10o r. SY 0070 L3 r 100 yC LS DRAINAGE SUBTOTAL 1 00 7 0 = '�i QUANITY 10_9. •_'S -0 OTHER SUBTCT, L 10 7. CY ( o7, L CY 1070 Tons 30 L= LF L: SO YD GRAND TOTAL 4 RICE COST 1200.00 0. 00 6 1000.00 96.00.2)0 300.00 0.00 2 330.00 660. X2)0 6 300.00. 1800.00 240 1E. 50 3720.00 1 700.00 700.00 =C. 0v7 112. 00 E. 50 0. 00 27. ± _1.00 192 50.00 3900.00 1 14'30.30 1 450. 00 300.00 0. 00 10. 00 10:92.90 0.70 143 90 8.00 100.00 ?41 0 1300. 1157.2 '227.9 GRADING AND SURFACING DATE 08 -Aug -94 130. 00 30. 00 30.00 10.00 :4.'00 14.00 44.00 6.50 7.90 7.60 15.40 900.00 4332.00 100.00 1614.70 11000.00 • 300.31 71841.91 340.00 '1.00 0.00 540.00 18002.210 16202. 30 0.00 33196.30 15364. 14 0.00 0.00 0.00 500.00 0.00 0.00 0.00 72265. 14 USE 14S, 700 145,647.05 _: \wodo \dave \ \i OFFICE OF THE COUNTY ENGINEER SPOKANE COUNTY. WASHINGTON TO: BILL JOHNS FROM: DAVE BERTO DATE: September 23, 1994 SUBJECT: 30ND 1TE'1S P16843 ?_DGE :ICNT ESTATES NCRTH 3RD ADD The bond for the above mention project is for the following _gems: 1) All the items on the approved road and drainage plans with the exceotion of the sod for the "208" Swales. 0 Source Capital Corporation Mr. Ronald C. Hormann, P.E. Spokane County Engineer North 811 Jefferson Spokane, WA 99260 Dear Sir: "Your Financing Alternative" RE: Developer /Borrower: T.D.C., Inc. Our Land Loan No: CLA #711 September 20, 1994 Funds in the amount of $145,700 are being held in a special non - interest bearing account in the name of T.D.C., Inc., (developer /borrower), et ux, for the purpose of assuring completion of installation of roadway surfacing, including grading and gravel, storm drainage and monuments in Ridgemont Estates North, 3RD Addition (development) in accordance with the drawings and specifications as submitted to and approved by the County of Spokane Engineer's Office on , 1994. No funds will be disbursed from this account without the prior written authorization of the Spokane County Engineer. This set aside of funds will not be revoked without the consent of the County Engineer. In the event that the completion and acceptance of the above - named improvements for maintenance by the County of Spokane are not accomplished within a period of one year from the date of this agreement, all funds remaining in the account will be forfeited to the County of Spokane upon written request by the Spokane County Engineer's Office to Source Capital Corporation (mortgage company). It is understood and agreed that upon the forfeiture of the funds to the County of Spokane, that the County of Spokane will then undertake completion of the subdivision to be accomplished within twelve (12) months from the date of the forfeiture of funds. It is further understood and agreed that in the event of any shortage of funds to complete improvements, the County of Spokane may have recourse against T.D.C., Inc., (developer /borrow) named above. It is specifically understood and agreed by the parties, that in holding funds for this development, Source Capital Corporation (mortgage company) is not serving as guarantor for any additional costs incurred by the County of Spokane in the completion and acceptance of the above -named improvements. Source Capital Corporation Business Financing • Since 1969 East 9016 Indiana, Suite 200 • Argonne & I -90 • Spokane, Washington 99212 Phone: (509) 928 -0908 • FAX: (509) 928 -0663 Ronald C. Hormann September 20, 1994 Page Two ACCEPTED AND APPROVED this 20th day of September, 1994. LC)„c1.1-1 By: \E.4 cNt: r> (Developer /Borowei5)\ ' OFFICE OF THE SPOKANE COUNTY ENGINEER By: SOURCE C� COR 0 TI / O / N His_ d i - (! 42 PROJECT P16848 RIDGEMONT ESTATE NORTH 3RD NAME DAVE SEATO DRAINAGE ITEMS 1) Drywell - Type A 2) Drywell - Type B 3) Grate - Type 1 4) Grate Type 2 5) Grate - Type 4 6) Backfill For DW 7) Concrete Inlet 8) C.M. Pipe 10" Dia. 9) C.M. Pipe 12" Dia. 10) C.M. Pipe 15" Dia. 11) R. Conc. Pipe 27" 12) Precast Manhole 13) Solid lid 14) Ditch /208 Excavation 15) Sod In Utility Lot B NON STANDARD DRRINAGE ITEMS 1) Filter Fabric Lining For 6 D.W. 2) 4' Chain Link Fence 3) Conc Splash Block 4) 4" Gravel In Utility Lot A 5) Irrigation System In Utility Lot B 6) 55' Conc Cross Gutter Type 1 16) Monuments 17) Barricade 18) Street Signs BOND ESTIMATE GRADING, SURFACING, CURB, AND SIDEWALK 19) Rough Grade 20) Top Course 21) Base Course 22) Asphalt Concrete 23) Curb Type A 24) Curb Type B 25) Curb Type R 26) Sidewalk NON- STANDARD ROAD ITEMS 1) Fine Grading For Maint. Road Lots 4&5 2) 3) 4) UNITS QUANITY EA ER EA EA 2 EA 6 CY 240 EA 1 LF 6 LF LF LF EA EA CY 1059.26 SF 21200 LS LF EA SY LS LS 604 1 241 DRRINAGE SUBTOTAL EA LF EA OTHER SUBTOTAL CY CY CY Tons LF LF LF SO YD LS 1800.2 1157.3 527. 2 2327.9 PRICE 1200.00 6 1600.00 300.00 330.00 300.00 15.50 700.00 22.00 25. 50 27.50 192 50.00 1 1450.00 300.00 10.00 0.70 GRADING AND SURFACING DATE 08- Aug -94 8.00 100.00 6.70 180.00 30.00 80. 00 10.00 14.00 14.00 44.00 6.60 7.90 7.60 16.40 COST 0.00 9600.00 0.00 660. 00 1800.00 3720.00 700. 00 132.00 0.00 0.00 9600. 00 1450.00 0.00 10592.60 14840.00 '900.00 4832.00 • 100.00 1614.70 11000.00 300.61 71841.91 540.00 0.00 0.00 540.00 18002.00 16202.20 0.00 23196.80 15364.14 0.00 0.00 0.00 500.00 0.00 0.00 0.00 73265.14 use I4s, 700-W GRAND TOTAL 145,647.05 ITEM ti STREET QUANTITIES PROJECT NO.- P16848 DESIGNER- DAVE BERTO PROJECT DESCRIPTION- RIDGEMONT ESTATE NORTH 3RD ADD STREET # 1 NAME- RENZE DRIVE LENGTH- 1152.52 FT. WIDTH- 36.00 FT. BEGINNING STATION = 134.18 ENDING STATION = 1286.70 TERM # 1 : CHOPPED TERM # 2 : CROSS STREET INCLUDED EW 0.00 PW 0.00 SK 0.00 RAD 20.00 SURFACE AREA- 41662.40 S.F. ROADWAY EXCAVATION 1.17 FT. CRUSHED SURFACING TOP COURSE 0.75 FT. CRUSHED SURFACING BASE COURSE 0.00 FT. ASPHALT CONCRETE 0.17 FT. CURB TYPE A EXISTING 0.00 FT. TOTALS ROADWAY EXCAVATION CRUSHED SURFACING TOP COURSE CRUSHED SURFACING BASE COURSE ASPHALT CONCRETE CURB TYPE A DATE- 8/ 8/94 MEASUREMENT QUANTITY 1800.2 C.Y. 1157.3 C.Y. 0.0 C.Y. 527.2 TONS PROPOSED 2327.9 FT. 1800.2 C.Y. 1157.3 C.Y. 0.0 C.Y. 527.2 TONS 2327.9 FT. • SPOKANE COUNTY ENGINEERING - DEVELOPMENT ENGINEERING SERVICES BOND ESTIMATE FORM PROJECT 124a G, S�w�C ; /U, 3 ` v PREPARER / ✓ 4rc Z_ ITEM # DESCRIPTION 1 2 3 4 TYPE "A" DRYWELL ER TYPE "B" DRYWELL / &. TRIPLE DEPTH DRYWELL FILTER FABRIC LINING,&t. FOR TYPE A & B DRYWELLS 5 FILTER FABRIC LINING FOR TRIPLE DEPTH DRYWELL 6 BACKFILL FOR DRYWELLS AY. 7 TYPE 1 METAL GRATE 8 TYPE 2 METAL GRATE 9 TYPE 4 METAL GRATE 10 WSDOT TYPE 2 GRATE 11 WSDOT TYPE 2 CONCRETE INLET BASE — UNIT "H" 12 SPOKANE CO. CONC. INLET 13 48" PRECAST MANHOLE 14 SOLID METAL LID 15 16 17 18 19 20 21 22' p , —p— DITCH /208 EXCAVATION t. gad.00 fl SEWER - R.Crc.,Ppt /924, LP 10" ST SEWER — Gh� { (D LF 12" ST SEWER — 15" ST SEWER — 18" ST SEWER — 21" ST SEWER — 24" ST SEWER — • QUANTITY 0- 6 a4.0 _ DATE (S' - 0 9 "9 e/z--- 4 PROJECT NO. — 46 PRICE TOTAL COST 23 30" ST SEWER - 24 36" ST SEWER - COMMENTS ON BOND ESTIMATE: • NON STANDARD DRAINAGE ITEMS: 1 2 Cat :. SJa Rio q 3 �ne_ r'acky r 4 1 QtO4'r�.,✓l Ai, Lod 4.04- t.r, 8.66 /t-P «ct. Cd 6/ 06 att. rad 6 545 4 4 5 041 59 Ca 4 6 .76155 5 Sad,' / LL4/ ,14- a /,zaD sr a 0,16RP 6 /rr,anT elf r� addit E-67 .R C 04/C CRo-ss Cr U y /E,e 59t1 ` 1P c / TOTAL ESTIMATED CONSTRUCTION COST: ( �,5, 4 $ 1-,832 $ 100,' $ 5000" $ 1,6-14-,1 0 / $ /4-, R9-0 , $ — June 20, 1994 Dave Renz The Tupper Group 12929 East Sprague Spokane, WA 99216 Subject: Ridgemont Estates North 3rd & 4th Add. Ownership & Maintenance of Drainage Ponds Spokane County No. P- 16848, P -1684C Dear Dave: S P0 K A N E OFFICE OF THE COUNTY ENGINEER C O 13 IV T Y A DIVISION OF THE PUBLIC WORKS DEPARTMENT Ronald C. Hormann, P.E., County Engineer Dennis M. Scott, P.E., Director The issue regarding ownership and maintenance of the storm drainage ponds, associated with these two plats, needs to be clarified. The first pond in question is currently a natural low -area, located within an open field, and is serving as a regional retention facility for the Ridgemont area. This retention site is located south and adjacent to the intersection of 16th Ave & Shamrock Rd. It is within an existing drainage easement dedicated to Spokane County, covering approximately 8.8 acres, and is recorded under Auditor's File No. 8004140245. This easement will need to be replaced with a new easement which shall encompass the ponding area generated from a 100 -yr, 24 hr storm event. Also, the pond needs to be placed within a separate tract and included in the plat boundary. The second pond is a proposed facility which will be located between the proposed streets of Renz Dr. & Radco Dr. The pond will be located within the plat of Ridgemont Estates North 3rd Addition. This is labeled Pond '3A' in the plans, an it is shown to be placed within a separate tract labeled Utility Lot "B ". There is no maintenance agreement in place for the Ridgemont area, which would serve as a mechanism for payment to compensate Spokane County to maintain the drainage ponds. Therefore, these two ponds will need to be owned and maintained by a Homeowner's Association, formed to encompass Ridgemont Estates N. 3rd & 4th Addition; with an easement dedicated to Spokane County for emergency /access purposes. The Homeowner's Assoc. needs to be formed prior to recording of the final plat documents. Provide a copy of the proposed Homeowner's Assoc. covenant's and restrictions for our review and input. Also, a written maintenance program needs to be prepared by your engineer and referenced in the Homeowner's Assoc. covenants. 1026 W. Broadway Ave. • Spokane, WA 99260 -0170 • (509) 456 -3600 FAX: (509) 324 -3473 TDD: (509) 324 -3166 _Ridgemont Estates North 3n. & 4th Add. (P -1684) Letter to Dave Renz on 6/20/94 Page 2 Please note that the review of the road and drainage plans and calculations have been placed "on- hold" until your outstanding past -due account with the County is paid. If you have any questions feel free to contact me at 456 -3600. Sincerely, Spokane County Engineers Dean Franz, P.E. Plans Review Engineer cc: Brenda Sims -- Stormwater Utility Dept. John Pederson -- Planning Dept. File April 22, 1994 S P O K A N OFFICE OF THE COUNTY ENGINEER A DIVISION OF THE PUBLIC WORKS DEPARTMENT Ronald C. Hermann, P.E., County Engineer Dennis M. Scott, P.E., Director Dave Renz The Tupper Group 12929 E. Sprague Ave Spokane, WA 99216 Subject: Ridgemont Estates North 3rd & 4th Add. Maintenance of Retention Ponds Spokane County No.'s P- 16848, P -1684C Dear Dave: C O U N T Y The issue of maintenance responsibility of the two retention ponds, associated with these projects, needs to be ascertained. The first pond presently functions as a regional retention pond for the Ridgmont area. It is located in a natural low area, within an open pasture, south and adjacent to the intersection of 16th Ave and Shamrock Street. It is encompassed by a drainage easement dedicated to Spokane County (Auditor's File #8004140245). The easement specifies that the County is not responsible for maintaining the pond; rather the pond is to be privately maintained. The proposed development will encroach upon this easement with a public street and single - family lots; therefore the design engineer has been asked to determine the 100 -yr stormwater elevation and stormwater limits within the pond area. It is planned to revise the limits of the pond and place it within a separate tract. The second pond is planned to be constructed as part of Ridgemont Estates North 3rd & 4th Add. It will be located within the 3rd Addition, contained within a tract. There is no stormwater maintenance agreement in place for the Ridgemont area. Normally the County will consider assuming maintenance responsibility only when a maintenance agreement is made between the property owners and the County. The agreement states that the County will collect fees from the property owners, and in return the County will inspect and maintain the ponds. Therefore, these ponds will likely need to be privately operated and maintained. W. 1025 Broadway Ave. Spokane, ‘VA 99260-0170 (509) 456 -3600 FAX (509) 456 -4715 TDD: (509) 324 -3166 Ridgemont Estates North 3rd & 4th Add. Letter to Dave Renz 22 April 1994 Page 2 Because pond maintenance will become more critical with homes nearby, you need to develop a maintenance plan. We need a proposal from you regarding the maintenance organization and plan. This issue will need to be resolved soon. We need to agree on a proposal before the road and storm plans can be approved, and the maintenance details will need to be worked out before final plat approval. If you have any questions feel free to call us at 456 -3600. Sincerely, Spokane County Engineers �jT U4 • Dean Franz, P.E. Plans Review Engineer cc: Brenda Sims, Stormwater Utility Acting Manager Bill Hemmings, Development Services Manager Doug Christenson, Simpson Engineers Project File /4 ,lobe, ac n ee -to Aid 1' D eet,(r rc--- 0202 Mar. 199 4— N A • A 3 Aij zi ‘1.„..t____Tr 9434_ ifr e! 1C4 be -tio yc • I , "Ca (4. 7 lit It 1.1 iefatrzh-4 4 et42 re-tsive-fer Ctfrffik • S0 t< 5,86tL 3 r:2 4/ca5 4 �JC L 1'j 3 4 4 't 41‘41,4 's Adcb Iii cz q /t .A /994 PA o A Fea. 5ity P-484- a 171.16 Red P6 Fes' Ali P - 84.6 3 +dO�i 3�1 1 0 -// ,c;1 1)11 / / i h f r x 0 Gl 0 ♦r r r i op ti ■ O • /./ t e 9 5_Z €9Z l 1r04. •+o} 1! 4sr r p c / 6 zS ( J)3 io 9 .69s 1 00 . 9Z1 1 t, t I 0 • f / / 1116•5 / 4 r „,„„ it i s „ -J • r 0 r l )3 LO. 62 6+r ezoz X1 / 3 •L+r +6 lNIOd H 1H 1 TO: EDWA PA-Ken . ?E. SpognUE Cevurl EAIGIUEFRS 1 SUBJECT: DATE: ,I A,JUA2 1+. (994 S impson Engineers, Inc. CIVIL ENGINEERS AND LAND SURVEYORS N. 909 Argonne Road • Spokane, WA 99212 (509) 926 -1322 • Fax: 926 -1323 THAI IL 40 u — JAN 1 4 1994 Coemy Enpil% F-JDGeM n Esrr'TES NI MTH - 39 Ahbmor.) : S,etE'i PLAUS 4 eeMocr AtrAC..NED Fog ' -jauR, RevtoK/ IS mr Viva-thee f-eTotT Fe (Z - n - 1C PL of R -ib &EM onrf E s - rA-ES (.kg--1}-1 uJMIGM c[.vbES • Ou — SIM — 1)R I taGE LE vgA.ijAGE nN— STE 3A . • n FP - SI'TF DRfret A-t+F I.E. I'RAIUAGE Fez A - Po rt0J OF THIS PLAT A4.1t5 FROM A LA-RS C A a ;JOT t.AATHJ THI PLAT To A LA Dg&.ui -mAF ra:c< -L rr / Fakir by 6, A-aEA - rb TL+E eAST eF THIS Ptl*T. FA eta set. MAO'S (') P-EIJL- D R.1 uE STP-ear PLht J- P ROFtt.E / 2\ DRAWN MAP Fog_ THIS PLAT IS) OFFSI1E DRAIkJhGE' M4P Foe_ LAL6 AP n4AOJI?JG 7a THE LA Po kJ* r4 AeEA 'An IWF P_eSorr 1 S Set-F— ExPlhut.7nev Bu I F Mau I-ta, 'Pr OvESTa'JS P1ehSE C.ALf� MS" 1 OR MII=C PIai,J -IPS Signed - 1)n1.1 r CtaRISTeI.JSO g33- &64l° MRR 22 '21 11:41 S I MPS[' ENG. PIJM.\S REiAetS): eiws ri.. EA1 ©RS: • •Clarenee'E Simpson. Engineers,'Inc.. N' 909'ArgonneRoad' ^ " Spokane WA'99212 -2789" CSfM : 4E AN °S.M ISSION Founded 1946' .imp:son` Engineers, Inc. Civil Engineering, Land Surveying ' d Lana Planning • • A4 ; ii,CKED hglE • 3 • n1APS Fog_ f3ASlti1S 4 C. 'trufl 4E 'Ar. " - Qrth €M Otii - r ESr•TES A)e2TH'— 4 Abb rt o1J, M Pt{Qh16 ''2e-@€ST '+E- &YERZfrei kPTEV000.) itso -A: pc:Ne:ti %S CSN OF •PA4C Z of GvtDC+ -r•- S4{Owt/J6 C'= n. 15 ''.FoK' 1)e1VwA S of c2 scat- Z' iiscD "`n,1S • Fo2'''DR- wEV eF BiSWS 4A, 4& ktdD 4D un4( '' n 2re l i eet:J./ • Be : L VTo . 030 P01 From bo V G CHRISret-IS r�1 Date 3-u- Time II a. w No of pages Ce vElt_+ Z (509) 926 -1322 Fax (509) 126 -1323 k % u 00 \ O� 8 8 12 11 I „ 5 ti ± 51 .5 ELEV 2c22.e2n i (.T Y Pr DEP \ aro, 91r _ "rasa wars Alex& r-3/41e Gaut n'es4 specomq the G4" � E --�L! / 7 kti M \A9, \ Co `q 0 MV MAR 22 '94 11:42 SIMPSON -'NG. v 0 0 \\ 030 P03 -2 t impson Engineers, Inc. CIVIL ENGINEERS AND LAND SURVEYORS N. 909 Argonne Road • Spokane, WA 99212 (509) 926 -1322 • Fax: 926 -1323 TO: Ep,vfrr -n TARg'/ I , RE . Spo KRt..IE County ENG1h1EcPS SUBJECT: KIDGEM°sat ES, K R-TH 4 Ant : DATE: ....IA,.,uAR.y IMF, (99 A,ri CHe �R - Vout REVIEW IS rue DRAIN A €EPoLT �R - 11-1 .5 PLAT ILCU,DIU6 rftrbco b uE StiazEr Peru- PR.'flLE hub ou -S ITE DRkMNAUE AMP THA - NK. `{o — RECEIVED _JAN 14 1994 Pn cnug sTrrioRA1tiRGE SIgno•1 l oud C4-1 fb/ 1S0IJ Vimpson Engineers, Inc. CIVIL ENGINEERS AND LAND SURVEYORS N. 909 Argonne Road • Spokane, WA 99212 (509) 926 -1322 • Fax: 926 -1323 TO: COUNT{ ENGINEERS C DAVE BEIZTO SUBJECT: RIDG.EMoi.IT ESTATES wop ri-1 3L AOD, DATE: 4/15/93 3 d 4-- kacke..-1. i a a r n-F --1 r. T Arlr1. 2a I-1. -lra a v, el A dri.. A1s,n 11.P r.1. erk %Air 4 tor t S T r. .. 2.K acid. rve. t„ r.ler,erd inru) P rr .r-t- r -.t - r all aF 4Le.S PIa._ - s. ani k vr;..r. 4-k sr I % a. - n- Io.4Gr ccL.ke . Signed c anA0. inn') i lin. 1' _v ,VVV v; 2S m Egineering PREPARED FOR: WINDERMERE - TUPPER REALTY ATTN: DAVE BENZ E. 12929 SPRAGUE cc: Simpson Engineers TRANSAMERICA TITLE INSURANCE COMPANY 720 NORTH ARGONNE SPOKANE, WASHINGTON 99212 (509) 922 -2222 /FAX 926 -1519 FOURTH REPORT PLAT CERTIFICATE Effective Date: September 9, 1994 at 8:00 a.m. In the matter of the subdivision to be submitted to Spokane County for approval, this company has examined the records of the Spokane County Auditor's and Clerk's offices, and the office of the Clerk of the United States District Court holding terms in said county. This certificate is made for the purpose herein specified, and is not to be used as a basis for closing any transaction. Liability is limited to the amount paid for this certificate. From such examination, the company hereby certifies the title to the following described land, in said Spokane County, to wit: See Exhibit A page 1 of 3 Order No.: JM- 174621M Certificate for Filing Proposed: RIDGEMONT ESTATE NORTH 3RD ADDITION Charge: Tax: Total: RECEIVED SEP 1 5 1994 - SPOKANE COUNTY ENGINEER $125.00 10.00 $135.00 E X H I B I T That portion of Section 25, Township 25 North, Range 44 East, W.M. described as follows: BEGIN at the Southeast corner of Lot 1, Block 6 of RIDGEMONT ESTATE NORTH 2ND ADDITION; thence the next 4 courses along the Easterly line of said 2nd Addition; North 21 °04'58" West, 99.13 feet; thence North 40 °48'18" West, 53.38 feet; thence North 19 °34'33" West, 126.62 feet; thence North 73 °19'08" East, 24.42 feet; thence North 63 °17'21 "; East, 96.46 feet; thence North 56 °18'15" East, 84.08 feet; thence North 80 °17'39" East, 165.97 feet; thence North 54 °16'23" East, 118.44 feet; thence North 33 °41'45" West, 63.28 feet; thence North 56 °18'15" East, 160.00 feet; thence North 53 °53'14" East, 58.33 feet; thence North 06 °11'29" West 63.99 feet; thence North 20 °43'09" West, 67.50 feet; thence North 56 °18'15" East, 275.66 feet to the beginning of a curve concave to the South with a radius of 15.00 feet; thence Northeasterly, Easterly and Southeasterly, through a central angle of 76 °39'27 ", an arc distance of 20.07 feet to the point of reverse curve concave to the North with a radius of 50.00 feet; thence Southeasterly, Easterly and Northeasterly, through a central angle of 87 °19'46 ", an arc distance of 76.21 feet; thence South 02 °51'52" East, on a non - tangent line, 536.80 feet to the Westerly line of RIDGEMONT ESTATE; thence South 43 °26'16" West, along said Westerly line, 345.18 feet; thence North 60 °25'32" West, 59.13 feet; thence South 64 °26'37" West, 96.43 feet; thence North 20 °37'01" West, 125.00 feet to a point on a curve concave to the Northwest with a radius of 435.00 feet and radial bearing of South 20 °37'01" East, thence Southwesterly through a central angle of 17 °19'26 ", an arc distance of 131.53 feet to a point of reverse curve concave to the Southeast with a radius of 385.00 feet; thence Southwesterly, through a central angle of 26 °36'16 ", an arc distance of 178.77 feet; thence South 29 °53'51" East, radial to said curve, 164.91 feet; thence North 89 °20'22" West, 148.86 feet to the Point of Beginning; Situate in the County of Spokane, State of Washington. VESTED IN: T.D.C., INC., a Washington Corporation. EXCEPTIONS: 1. Taxes and assessments, if any, no search having been made thereof, as to Parcel No. 45255.9065. Parcel numbers are provided from the latest Assessor's Maps available to the company. Said parcel numbers are not a matter of the public record therefor, the company makes no assurance as to validity or accuracy relating thereto. page 2 of 3 2. AGREEMENT AND THE TERMS AND CONDITIONS THEREOF: sac BETWEEN: AND: DATED: RECORDED: RECORDING NO.: REGARDING: 3. AGREEMENT AND THE TERMS AND CONDITIONS THEREOF: BETWEEN: AND: DATED: RECORDED: RECORDING NO.: REGARDING: 4. AGREEMENT AND THE TERMS AND CONDITIONS THEREOF: BETWEEN: AND AND: DATED: RECORDED: RECORDING NO.: REGARDING: 5. EASEMENT AND THE TERMS AND CONDITIONS THEREOF: GRANTEE: PURPOSE: AREA AFFECTED: DATED: RECORDED: RECORDING NO.: page 3 of 3 Order No.: JM- 174621 Property Owners Spokane County Commissioners October 9, 1974 October 18, 1974 7410180104 Letter of Commitment Alpheus B. Renz and Hilda E. Renz, husband and wife Spokane County December 12, 1975 7512120290 Drainage Control System Spokane County Sullivan South Enterprises, a Washington General Partnership Alfons B. Renz and Hilda E. Renz, husband and wife September 15, 1988 September 21, 1988 8809210088 Spokane County Sewage Agreement County of Spokane Installing, operating and maintaining drainage ditches and drainage facilities; Ingress and egress This and other property May 26, 1994 June 6, 1994 9406060095 6. Potential liability for assessments levied by Spokane County Utility Department for the Aquifer Protection Area. To verify, call 458 -2538. In order to make payment, account number is necessary. TRANSAMERI TITLE INSURANCE COMPANY By .a. reke. Q7 Jude Mitchelltt ,.t r SEP 1 5 1994 c"OReAItE GOLSWPI ENGINEER Whenever the individual lot owners or their successors in interest fail to maintain the drainage facilities in conformance with the approved Drainage Plan, a notice will be given to the individual lot owners or their successon in interest by the County. If not corrected after ten (10) days, the County has the right to correct the maintenance failure or have it corrected at the expense of the individual lot owners or their successors in interest. Spokane County does not accept the responsibility of maintaining the drainage course on private lots within drainage easements or floodplain arms, nor the responsibility for any drainage whatsoever, including but not limited to inverse condemnation to any properties due to deficient constnsction and/or maintenance of drainage courses in drainage easements on private property. This Drainage Easement will terminate at such time the described areas are plated. IN WITNESS WHEREOF, we have hereunto set our hands and seals this ac ^day of 1994. STATE OF WASHINGTON ) COUNTY OF SPOKANE ) ss Dated this a12' day oft-Y\' . d :fit Iu:t A.B. Renz c y L7. Hilda Rent 1994. \/ seta . P ubh rcand r the of M sin; residing res s�3ricl 195E Y 15 • +, ..b q" sP:n rot. 16 07 PACE 19 9 5 I certify that I know or have satisfactory evidence that A.D. and Hilda Rent, are the individuals who appeared before me, and said people acknowledged that they signed this instrument, and acknowledged it to be their fax and voluntary act for the uses and purposes mentioned in the instrument. AO( it; E7CE i) 9406060095 X \C\ 1 \ � r int Or• ni C089f9 REOOESI fir _ Jun G 10 51 GN ' 9� 2411, Avenue wi,t,.. RE No. 412'0' V POS011 4 . COONII. Na$n Assent's Parcel No. 45252.9065 SPOKANE COUNTY ENGINEERING DEPARTMENT DR AMAGF FASFMFNT rot. 160 7PASE 1994 The Grantors A.B and Hilda Renz, husband and wife, of the County of Spokane, State of Washington, for and in consideration of Mutual Benefits, the receipt of which .. is hereby acknowledged, grants to the public of the County of Spokane, State of Washingjon,.4 Drainage Easement over, under and across the following described real property situatedtii 1,$e_ 1ty of Spokane, Sate of Washington: , f y ,.� I 1,;310; / ' ; Asvnnr'r Pnrrel N 459599fM5 .o OlINS ^,i y ',:_nee .. ^lT: J 1 A 30 foot Drainage Easement over that portion of the Northwest Qtivt2! /in 1/4) of Section 25 . Township 25 North. Ranee 44-East. W.M., Spokane bounty,- Washington, described as follows: ' - L BEGINNING at the Northeast corner of Lot 3, Block 1, 'RIDGEMONf ESTATES NORTH 5TH ADDITION;, thence N,55'33'42'W :, along the Northerly line of said Lot 3, a distance of 60.15 feet to the True Point of Beginning: thence continuing N.55'33'42'W., a distance of 33.30 feet; thence N.08'42'52'E., a distance of 122.77 feet to the beginning of a curve concave to the Southeast with a radius of 215.00 fen; thence Northeasterly, through a central angle of 15 °46'24', an arc distance of 59.19 fat to the end of curve; thence N.24'29' 16'E., a distance of 29.76 fat to the beginning of a curve concave to the West with a radius of 70.00 rem thence Northerly, through a central angle of 45 ° 06'17', an arc distance of 55.11 fat to the end of curve; thence N.20 ° 37'01' W., a distance of 128.86 feet to a point on a curve concave to the Northwest with a radius of 435.00 feet and a radial bearing of S.16 ° 39'45'E.; thence Nonheasterty, through a antral angle of 3'57'16', an are distance of 30.02 fat; thence S.20 37'01'E, radial to said curve, 127.82 fen to the beginning of a curve concave to the West with a radius of 100.00 fat; thence Southerly, through a central angle of 45'06'17', an an distance of 78.72 feet to the end of curve; thence 5.24'29'16' \V., a distance of 29.76 feel to the beginning of a curve concave to the Southeast with a radius of 185.00 fat; thence Southwesterly, through acentral angle of 15'46'24', an arc distance of 50.93 fat to the end of curve; thence S.08°42'52'W., a distance of 137.23 fat to the True Point of Beginning. Drainage Easements, as described hereinabove are for the purpose of installing, operating and maintaining drainage ditches and drainage facilities to dispose of nsnoff, are hereby granted to the public. The County of Spokane is hereby granted the right of ingress and egress to all Drainage Easements adjacent to the public right of way. The Grantor will construct the drainage futilities in conformance with die approved plans on file in the County Engineers Office. The Grantor or their successors in interest shall maintain the drainage ditch and access road in conformance with the approved plans on file in the Engineers Office. The property owner or his representative shall inform each succeeding purchaser of all Drainage Easements on the property and his responsibility for maintaining drainage facilities within said Drainage Easements. The Drainage Easement described hereinabove is to and Mani:tar with thfygnd• Nq modification of the boundaries of said Drainage Easement can be a t out die (prier. approval of Spokane County. R. E. EireN E<am01 Date ''� 797 u • • COUNTY SOR _ ; X10 Ara SZ / v 7' 3 . `VG � 10 • 4 p A° I J t t- — -- ( sow d R ‘O t t5 1 g A X‘ „ P { , RIDGEMONT ESTATES NO.4 1 3rd ADD RIDGEMONT ) ESTATES NO.4- Is? ADDITION I 5; I l 2 7c' TI • Irirr-ht L 25 - 128 ] 8 e g 1 RIDGEM ESTATES NO.4 2nd ADD A • 11-. 7 25 .24 J 4 0 4 / R►DGEMONT ESTATES J JO J 8 // C • S eam. tse / / I O 44 701.35 RIDGEMONT �\ ESTATES NO. 2 I _ 0 96 :J 2 of the platting of ' Rotchford Acre Tracts' do hereby rake a commitment to the County of Spokane that, if the plat for'Rotchford Acre Tracts" is approved, they, their heirs, oc successors in ownership will not permit any part of their property described in Schedule "B" which fronts on the roadway referred to above, . of which the property described in Schedule "C' is the soutn one half thereof, to be used as a building site unless and until a plat for said adjacent property shall haca'been approved or until consent for the use thereof for building sites shall have been otherwise approved in writing by the County of Spokane: It is agreed that the commitment made by the undersigned, as is herein defined, shall run with the lard described in Schedule 'B'. / %% 2. 6 Eva deny suoqseniiB-D and SWORN to before me t, m- r-"""—(4— CcepEed and approveC for wt.4'd fr I rtiw °� .. Ta, ry fublloti —rte �: - State o Jashingtor., residin at Spokane COUNTY OF SPOKANE By C [IJy.I'cwcar, ;CV: w, CHRISTEENSCN ./ /. o ( _2J 2 _ _ i A a• itonu. Rent 209 rKt 872 7'110180304 T0: Spokane County Commissioners Spokane County Courthouse Spokane,Washington 99201 a /f• 209 mci 871 Y;1. GUi7 FILEO OR RECCROEO E CCUE5TGF0 proa.cucl Attorney's OfCtce LETTER OF COYAETM NT eSi 18 1i zs MI '14 • 1: :zlw,i :it r' :J. su :li4 Al per/// 4ii Lli Req. Courthouse xxx GENTLEMEN: We are informed that the owners of certain real property which is described in Schedule "A' attached to this letter, are submitting for approval a plat for that property in which proposed plat the said property is described as 'Rotchford Acre Tracts ". A copy of the proposed plat has been examined personally by the undersigned. We are the owners of the property which is Located immediately adjacent on the south to the property described in Schedule 'A' (Rotchford Acre Tracts). The description of our property is set forth in Schedule "B" attached. ' The undersigned, to accomodate the platting of the 'Rotchford Acre Tracts' property, has herecofor delivered to Spokane County a deed for property to be used as a roadway which conveyance covers property described in Schedule 'C' attached. Et is recognized that the 'Rotchford Acre Tracts" plat will not be approved without the undersigned having accepted the commitment that no part of their property described In Schedule "B" which fronts on the County road (running east and west) which is adjacent to said property on the north, shall be used as building sites without approval of Spokane County having first been obtained in writing or.until a plat for said property (Schedule 'B ") or some part thereof adjacent to said roadway shall have been approved by the County of Spokane. Now therefore, the undersigned, having recognized benefits which will accrue to them and their property as a result )' SUCTION 4 -- ENTIRE AOP_:LENT This Indemnity agreement contains'Ehe entire agreement betloen the partiee Ilarat0 and Cho terns are contrautual and not merely a recital. The undersigned Indennitors state that they have care- fully read the foregoing Indemnity agreement, and know the ton - tents thereof, and they have signed the same as their own free acts. I:: 'WITNESS WHEREOF, the parties hereto have caused this agreement to be executed on the '_ day of 1\ ; ( / 1975. ATTEST: VERNON OMLA:I Cler' the ward f-rrx:S, 'beauty Clerk STATE 07 VASHINOTOU) 33 COUNTY 0? S ?0(AS'c) STATE Of 'ASNINSTON) u. COUNTY Of SPOKANE ) INDE:INIT03S .. � ig -, .ti . / - -/L �/ / G &r,- y '/ 1 /_ II/O YITEE SPOKANE COUNTY, a municipal corporation. 50A20 OF COUNTY CCIT1ISS iONE'.S .., (V.24 ' /- e err 25 0 j282 O91. On this day personally appeared before me Alfons R.Renz and Hilda E. Rens, husband and wife, to me known to be the Individuals described in and who executed the within and fore- going instrument, and acknowledged that they signed the sane as their free and voluntary act and deed, for the use, and purposes therein mentioned. - ..... GIVEN under my hand and official seal thls /CF 79e �.--� V4<� . 1975. ht. 4 7411 Not y ?aalic in /and for -ne- Stacc of sahington,.iesiding at Spokane , net. LOU PAC( 1281 to the property, both real and personal, owned ty the Inde:an1Cars which nay be damaged or injured in anyway as a result of the Indennitee maintaining any drainage control system an the Reno Sutdivialon, to to recorded as Rld ;a- ..or.: Estates, or the Indernitors' property adjacent thereto; N0W, T.P =P.E ?ORE, in consideration of 31.00 and ether good and valuable consideration, receipt of which 13 hereby aeknowlaaged, it is hereby agreed: -CTIon 1 -- LIABILITY, LOSE OR. DAtlACE The Indemnitors undertake to indemnify release the Iademnitee from any and all actions, demands, costs, expersos, compensation, and a!' c'-airs of every kind or nature whatsoever L �Y.'(?4U. to their person or property (real and personal) Including Inverse condemnation/arising out of ar incident to or attritutable to the Inderlltee locating, establishing, construct- ing, operating, maintaining, repairing, and all matters Incidental thereto, the drainage :ontrol system In conjnctlon with Rena Subdivision a /k/a Ridgenarrt Estates. .SECTION 2 -- DESCRIPTION CP REAL PROPERTY The real property, including all encuat :emcee attached and located thereon, which is owned by the Inde,nitors, and which is the subject of this indelticy agreement 1: described as follows: The tPd 1/4 of Section 25. T. 2;N.. R.44 E.W.M. E Le.9 : : any land lying Southeasterly of the • Northwesterly lire of R dsemon: Estates. — Zi.7 SECTION 3 — ?EN WITH THE LAND This indemnity agreement shall run with the land herein above described, and shall be binding on and'shall inure to the terefit of the parties hereto, their heirs, successors, or euatgna. . : ?50 4iii280 An.td on ett D!D • AEGUCSr C.7 (.ui1L f' pritilr' 1 :55= 12:i290 fee (2 4 40 PA IS INDEMNITY AGREEMENT VE :4 AI Uao.•, :)1la ,..,,L- . 7,r i / ??Z' .l'XY THIS I nsMN:TT AGREEMENT made and entered into by and tetreen Alphona B. Reno and Hilda E. Rena, husband and wife, reoiding at South 2709 Sullivan Road, 'Jeradale, Washington 99037, hereinafter referred to as the "Indemnitora' and Spokane County, a political aubdlvision of the State of Washington, having orftces for the transaction of tualness a: Heat 1115 Broadway, Spokane, Washington 99201, hereinafter referred to 13 the " "Indennitaa', jointly hereinafter referred to along with the Irdennicor: as tno "Parties ". v r T N E S S E T H: WHEREAS, the Board of County bat'. issiarera of Spokane County hes the care of County property and the management o: County :ands} s viiazAS, the Board of County Commissioners of 7caaa: Coun ty pursuant to the Revised Code of Laa.`.irgcon, Chapter j'..L7 ( 7lats-- Subdlvisicns-- Dodicatians) in approving plats may require condition: therein for the health, safety, and welfare of the public; and FHEREAS, applicable departments within 3pokanc County have approved a drainage control system In conjunction with Rens acbdivialon, to be. .recorded as RSd ;eront Estates, and designated as ?E 9 by appropriate County departments; and WHEREIC, ror the correct operation of said drainage control system various easements on properties owned by the Irlemnitars hereinabove were obtained; and WHEREAS, in conjunction with easements granted by the indemaito :s he reiaatove, the parties hereto desire to exc:ute an agreement releasing the indemnitee from any and all looses c Cccoay r,u".d [( 994 f.:II 1134 a sewerage system through the Property; and the County is willing to make said sewerage system available for connection to future lots within the Property. In a manner consistent with Owners subdivision plans, upon certain terms and conditions; NOW, THEREFORE, for and in consideration of the mutual promises set forth hereinafter, the Parties hereto mutually agree as follows: Section 1: PURPOSE The County is desirous of constructing a sewerage system, hereinafter referred to as the "Facilities", through the property, which Facilities will be made available to provide sanitary sewer service to Lots within the Property when it is subdivided, as well as connecting the adjacent and existing Timberlane and Ridgomant subdivisions to the County's general sewerage system. Owners are willing to grant to the County perpetual easements, free of encumbrances and with appropriate access, running through the Property in an alignment acceptable to the County, In considera- tion of the County paying all costs for the design and construc- tion of such Facilities. Owners and their successors hereby acknowledge an obligation to pay the County's General Facilities Charge ( "GFC "), monthly service charges, and an In Lieu of Assessment charge IILAI, as specified herein, upon connection of the Property, or future lots therein, to the Facilities. It is the intent of this Agreement to reduce to writing the Parties' agreement with respect to the conveyance of easements to the County, the design and construction of the Facilities, and related matters. Section 2: CAPITAL CONSTRUCTION The County shall be responsible for the design and construc- tion of the Facilities, generally described as 8 ", 10" and 12" sanitary sewer pipe, and necessary appurtenances thereto. The Facilities are deemed to be a benefit to the public. The design and construction of the Facilities will be In accordance with all applicable Federal, State and Local laws, ordinances, and regulations. The County shall install "Ts" at appropriate locations within the Facilities designated by Owners; however, the County shall not be obligated to install side sewer connection lines from the "Ts" to individual lots, which shall be the Owners' responsibility to install. All manholes Installed within the Facilities shall be designed and constructed to include a one foot 11') concrete ring . section In order to facilitate adjustment of the manholes to a proper elevation at such time as roads are constructed within the Property. Page - 2 8s—o835 "fi. 994 11/f 1133 A; OM/ SPOKANE COUNTY SEWERAGE AGREEMENTISP ^'AAScmmlln,,e y IL : :,; SAMPSON THIS AGREEMENT, made and entered into the /TT; day of �t 1986, by and between SPOKANE COUNTY, a political subdivision of the State of Washington, having offices for the transaction of business ac West 1116 Broadway Avenue, Spokane, Washington, 99260, hereafter referred as the "County ", and SULLIVAN SOUTH ENTERPRISES, a Washington general partnership, having offices for the transaction of business at ( a //r. - as" , Spokane, Washington, 999/., and ALFONS B. RENE AND HILDA E. RENE, husband and wife, South 2209 Carnine Court, Vcradale, Washington, 99017, hereinafter referred to as the "Owners ", jointly referred to, as the "Parties ". WHEREAS, pursuant to the provisions of the Revised Code of Washington, Section 16.72.120(6), the Board of County Commis- sioners of Spokane County, has the care of County property and the management of County funds and business; and WHEREAS, pursuant to the provisions of Chapter 36.94 RCW, Spokane County has the ability to construct, operate, and maintain a system of sewerage within Spokane County consistent with the adopted Comprehensive Waste Water Management Plan; and WHEREAS, Owners are the legal owners of certain real estate located at the northeast corner of Sullivan Road and 24th Avenue, Spokane County, as more particularly described in Attachment "A ", attached hereto and incorporated by reference herein, and hereinafter referred to as the "Property "; and WHEREAS, Owners have made application for a preliminary plat of the Property, to be known as Ridgemont Estates Fourth Addition, and are desirous of subdividing the Property with the availability to connect to the County's general sewerage system; and WHEREAS; the County is desirous of extending a system of sewerage from Sullivan Road and 24th Avenue through the Property, to the Timberlane and Ridgemont Subdivisions, for the purpose of connecting said subdivisions to the County's general sewerage system; and WHEREAS, Owners are willing to provide the County with perpetual easements through the Property, in an alignment acceptable to Owners and the County Utilities Department, and with appropriate access thereto, in order to allow for installation of Page - 1 8809210088 W I T N E S S E T H: t F site' or. IEz..iTzj Ser 21 9 21'4'u8 Under this Agreement. the ILA payable at the time of hook-up shall be permanently fixed at 51,500.00 (the special benefit for residential parcels within a ULID is currently $2,500.00, which amount is currently reduced by a forty percent (401) County subsidy, leaving a balance of 51,500.00 payable). Each lot within the Property connecting directly, or indirectly, to the Facilities shall receive a credit of $700.00 against the ILA amount at the time of hook -up. This credit given by the County is in consideration of Owners' granting to the County perpetual easements at the east and west terminus of the East -West Sewer line easements, as indicated cn Attachment "B ", the loss of crop revenues to Owners, engineering expenses previously incurred by owners, the nuisance of the sewer line passing through the Property prior to subdivision and the reduction in value of certain private lots within the Property due to the County easements. A further credit of 5500.00 shall be allowed against the ILA to each lot owner at the time of hook -up to compensate for the County's not installing side sewer lines connecting the "Ts" to individual lots, as would be the case if the County was installing a ULID sewerage system (the amount of this additional credit amount is based upon the average cost of installing a side set,er connection, estimated as approximately 5500.00, from bids received recently). The GFC applicable under County ordinance or resolution at the time of hook -up of an individual lot shall be the amount payable, less any County participation moneys applicable to reduce said amounts at the time of hook -up. The GFC amount may increase or change from present figures due to periodic adjustments by the County, and the level of applicable participation moneys may also be reduced or change according to County policy. The combined 51200.00 credit allowed future lot owners shall remain constant, as will the ILA amount. Section 5: COMPLIANCE WITH LAWS The Parties hereto specifically agree to observe all federal, state and local laws, ordinances and regulations, including, but not necessarily limited to, chapter 49.60 RCN, to the extent that they may have any bearing on either providing any money under the terms of this Agreement or the services actually provided under the terms of this Agreement. Section 6: MODIFICATION No modification or amendment of this Agreement shall be valid until the same is reduced to writing and executed with the same formalities as this present Agreement. Page - 4 +«: 994 ;:.ff 113E Section 4: PAYMENT OF GFC AND ILA This section shall apply only to those residential lots which result from approved subdivision of the Property, and which are adjacent to the Facilities and connectable by side sewer thereto. The owner of each lot at the time of hook -up to the County's general sewerage system shall pay the County's General Facilities Charge (GFC) that Is current at that time, reduced by any County participation moneys then applicable to reduce said charge (the present GFC amount equals 5770.00 for residential properties, currently reduced by a forty percent (403) County subsidy, leaving 5462.00 payable by the property owner). Each lot owner at the time of hook -up shall also pay an In Lieu of Assessment charge (ILA). This charge is deemed equivalent to the special benefit that the County's sewerage system is determined to provide to parcels of land within the most recent County ULID, reduced by applicable County participation moneys. 994 ):If 1135 Owners agree to grant to the County perpetual easements in the property, free of any encumbrances, along with temporary access easements thereto, all as specifically indicated on Attachment "8 ", attached hereto and incorporated by reference herein. Owners agree, within ten (10) days of written request by the County, to execute any and all necessary perpetual eesementls), temporary construction easement permits, access easements, or any other documents required of Owners under the terms of this Agreement. Section l: USE OF CGNSTRUCFED SUBDIVISION SEWER FACILITY ' Only the Owners of the Property, or subsequent owners, and their successors, assigns or heirs, shall be permitted or author- ized under this Agreement, to tap Into oc use the Facilities. Owners shall be responsible for the design and construction of any other facilities on the Property, ocher than the Facilities to be constructed by the County as described herein, that may be necessary in order to use or connect to the Facilities, in conjunction with the subdividing of the Property. As owner of the Facilities, the County may allow, at its sole discretion, other persons, firms or corporations outside the Property to tap into or use the Facilities. Additionally, as owner, the County will be responsible for maintenance and operation of the Facilities once constructed and accepted by the County. All users of the Facilities shall pay a monthly Main- tenance and Operation Fee as established by the Board of County Commissioners. Page - 1 at the time fixed for performance, the other Party may exercise any right as proved for herein. This Agreement, upon execution by both Parties, shall be recorded to the Spokane County Auditor's Office. The provisions within this Agreement shall run with the Property, and bind the Owners and their successors, assigns and heirs. IN WITNESS WHEREOF the Patties hereto have caused this Agreement to be executed on the day and year first set forth above. ATTEST: WILLIAM E. OONAHUE, Clerk /�� of 'n the Boardd/� / By W /L.G+., la -rsu �c..c Deputy Clerk STATE OF WASHINGTON ) ) 59 County of Spokane ) On this /•,T' day of /2 appeared before me / J • Page - 6 Section 12: RECORDING BOARD OF COUNTY CO3`LMISSIONERS OF SPOKANE COUNTY, WASHINGTON SULLIVAN SOUTH ENTERPRISES, a Washington general partnership By I\ti m'li..S 1v1 ere. IT tle) NI 994 t'2f 1198 1988, personally to me known to be Page - 5 e t. 994 ma 1197 Section 7: VENUE STIPULATION This Agreement has and shall be construed as having been made and delivered In the State of Washington, and the laws of the State of Washington shall be applicable to ics construction and enforcement. Any action at law, suit in equity or judicial proceeding for the enforcement of this Agreement or any provision hereto shall be instituted only in courts of competent jurisdic- tion within Spokane County, Washington. Section 3: WAIVER • • No officer, employee, agent or otherwise of the County has the power, right or authority to waive any of the conditions or provisions to this Agreement. No waiver of any breach of this Agreement shall be held to be a waiver of any ocher or subsequent breach. All remedies afforded in this Agreement or at law shall be taken and construed as cumulative, that is, In addition to every ocher remedy provided herein or by law. Failure of the County to enforce at any time any of the provisions of this Agreement or to require at any time performance by the Contractor of any 'provision hereof shall in no way be construed to be a waiver of such provisions, nor in any way affect the validity of this Agreement or any part hereof, or the right of the County to hereafter enforce each and every such provision. Section 9: ALL WRITINGS CONTAINED HEREIN This Agreement contains all the terms and conditions agreed upon by the Parries. No other understandings, oral or otherwise, regarding the subject matter of this Agreement shall be deemed to exist or to bind any of the Parties hereto. Owners have read and understand all of this Agreement, and now state that no represen- tation, promise or agreement not expressed in this Agreemenc has been made to induce Owners to execute the same. Section 10: TERMINATION The County shall have no obligation of any kind or nature whatsoever to either design or construct the Facilities described hereinabove until Owners have granted to the County that right -of- way and /or perpetual easements and /or construction easement(s) as proved for hereinabove. Subsequent to the granting of such right -of -way, perpetual easement(s), and /or construction ease - mentls), respectively, neither Party may terminate this Agreement for any reason whatsoever. Section 11: TIME IS OF THE ESSENCE Time is of the essence of this Agreement. If either Party shall fail to perform the Agreement on his part to be performed, Page - 8 ATTACHMENT "A" '.f t. ) ` . 994 9(Cf 1140 (1) Parcel No. 25545 -9054 more particularly described as that portion of cne North Half of Section 25, Township- 2.5 —.h7 Ran3e_Ji.E..W -.M., lying Wly of Ln Dar;"Beq 2024.75 ft. W of NE 'tor th S 80 deg 08 min 14 sds E 152.25 ft eh 5 50 deg 22 min 27 sds E to W In of Ptn known as Ridgemont Est 12 th Sly alg sd In to W In of Ridgemont Est Add th Sly alg sd 'd In to S ln, of NW 1/4 and tern of sd In exc W 1/2 of NW 1/4 and exc N 480 ft of W 726 ft of NE 1/4 of NW 1/4 and exc Rds, Spokane • County. (1) Parcel Na. 25542 -9058, more particularly described as the West Half of the Northwest Quarter of Section 251TnwnsAip -25 N., Ran a E.N.M., and the N 480 ft of'N 726 ft of NE 1/4 of - NH 1/4 exc Ptn of NW 1/4 of NW 1/4 Daf; Beg at NW cor Sec 25 th E alg the N In SD Sec 870.00 ft th S at R/A to SD N Ln 730.00 ft to Beg of a Cur to the Lft th alq sd Cur having a Rad of 475.00 ft through a C/A of 15 deg 21 min 06 sds 127.27 ft th W at R/A to W In sd Sec 25 887.67 ft to sd w In th N alg sd W Ln 855.00 ft to P0B exc Rd R /W, all in Section 25, Township 25 N., Range 44 E.H.M., Spokane County. 4 , the /i; ;;.:.i:..:, .1 / a7... of the above -named general partnership that executed the within and foregoing instrument, and ac- knowledged said Instrument to be the free and voluntary act and decd of said general partnership, for the uses and purposes therein mentioned, and on oath stated that he was authorized to execute said instrument. IN WITNESS WHEREOF, I have hereunto set my hand and affixed my seal the day and year first above written. c cE S. iH O 'y '•. FOF WAS43/4I1.o" STATE OF WASHINGTON ) 1 ss County of Spokane ) [: 994 Eta 1139 Notary Public in and for the State of Washington, residing at Spokane. My commission ex- pires 0 i- / iY. /' A 0. RENZ 77 HIL II DA E. RENZ On this day personally appeared before me ALFONS'8. RENZ and HILDA E. RENZ, to me known to be the individuals described in and who executed the within and foregoing Instrument, and acknowledged that they signed the same as their free and voluntary act and deed, for the uses and purposes therein mentioned. GIVEN under my hand and'offlcial seal this /6 day of 4 . T... �, „. 1988. /_./ 7). Notary Public in and for the State of Washington, residing at Spokane. My commission ex- pires r / -; /o ;r S0R d IEEft dat TES JlatONEAS at by de Coonly Co nliomren d Spain 7 d 1n1 7B0mi, r .42- g' 0 This sketch 6 provided, women .age, for your inigmmlal h 4 nnl mtgnded 11 flow all matzo relama 10 trio properly naiad Put not kmiled rC, area, dimensions. easements. encrWCMUnrs. or ioceilon al Lou nes. It is net pan cf. nor does h match, the rummitment of palmy to which di is clutched. The Company eau mes NO IAA Nerd for o'b,03 59 2T, manor rei9 m arm Antal. BelarenceY11312406 11,240 SOFT. amdwmhn apc410to woo lot Cunha, intamati 2. 10,588 SOFT. 2 B 2 14,451 50.11. 3 B 2 14,352 20.IT. 6 2 15048 SCR 5 te 2 16,754 SO.R. fi 6 2 13.557 54.57. 1993 7 a 2 11,252 50ST. B H 2 411.738 50.FT. 9 B 2 11.992 50.11. 20 6 2 14,555 50.57. THANSAMEHICATRLE 'ICE COMPANY 1923 1293 1155 14B AM N8920 148.86' 1 a 3 16,005 SO R CURVE DATA QI ® 131 6. 117'411' 4 - n41025r 4 - 71512 II - SlLC P -2511 R - 15.00' T - ZL« 1 - 11211 1 - 1112' L - Re.' L -2143' L. z0e1 C - efi9'4C 6- 1110 ':0' 8 - 2e']sl P - 36cc 0 - 4356! 12 .111W 1 - 47.73' T - 60.27 L - 7e21' L- 111.54' l -17577 P - Te Otl T- 54.42' L n 11657 n - 212411' R 41012 1 - Leef L - a - ulM2' R - 410.12 1 • 1257 64 L - N4 J/ celd.FIC SGLL (N FEET) 0 n .a Im UNPLATTEO Lot 1 Block 3 4 4 54, g64 W9 T Strip EQUIPMENT & PROCEDURE A 42 N Stcla 41 a F4, Lon nn a mm Sot LEGEND = L If'(7® ap IL NAnti r e total • aFonitj7 non am No 9441f3461 e as and 6 . 01 1 fl idr rm Ml !WI : 0 0 J : U w 0 a; 1) g 1' % th ab . 1� r 9 S_ 1 O Li O N Oj lA 12e 12 1 N102115E A• .V 1n Sa9'1607 U t/ 1$a.' iD 5J I9•E 6 5 6 N TRANSANERICATTT)E 9sSWSUPANC£ COMPANY This sluebri lss pi orWdE. without charge. Ida your \ InIol Marion- It 15 int an.* to show all matters 8 \related 10 the pyoomo nbiud,n9. but not limited to; ores, dimensions. OEGeminO. encroaetvnents. 01 location of boundaries la Is nth P41 OI. nor duos 11 moony, the commitment or policy to which h is onached. Tee Company assumes NO LIA6IUTY for any mansr related to hull sketch. Aelerence should he Made so so accurate sum ir tot further intot m iron. 7 ]6211' ce 8 125.oO' 7 7 nV1,11 1 l 1, rpv »e , KNOW on Tupper & hermn es Begin at 1 e t s on N 41T4.6.. thence N feet: then 63 feet. curve c011 5cuteacup' reverse N 4 not•I en 4 n al n feat; In.n en• radlue et • tingle et 1 •im a distance o. 145.86 In 5iluot• In Tor pabar the local r within this aa i• pre lot torn u Lots 1 & Purpose Uee of phi dhIlty Ease A public e. ach Ip1 p Drainage e and mcinm County or adjacent l: pennonenl Ile. 044 p, plane. The Peopert on the pre The platter sea yore c th.se oelbc .a iron 1 kilNESS T. Fen FROM ANGLE DIST NORTH EAST TO P1684B RIDGEMONT ESTATES NORTH 3RD ADD PLAT BOUNDRY 5 -6 -94 D.B. AUTO INVERSE * * * ** START 1550.00000 1550.00000 1 1 INV N 21 04 58.0 W 99.1300 1642.49441 1514.34132 2 2 INV N 40 48 18.0 W 53.3800 1682.89976 1479.45820 3 3 INV N 19 34 33.0 W 126.6200 1802.20098 1437.03364 4 4 INV N 73 19 08.0 E 24.4200 1809.21061 1460.42597 5 5 INV N 63 17 21.0 E 96.4600 1852.56821 1546.59238 6 6 INV N 56 18 15.0 E 84.0800 1899.21445 1616.54648 7 7 INV N 80 17 39.0 E 165.9700 1927.19528 1780.14083 8 8 INV N 54 16 23.0 E 118.4400 1996.35513 1876.29149 9 9 INV N 33 41 45.0 W 63.2800 2049.00374 1841.18477 10 10 INV N 56 18 15.0 E 160.0000 2137.76917 1974.30388 11 11 INV N 53 53 14.0 E 58.3300 2172.14750 2021.42627 12 12 INV N 6 11 29.0 W 63.9900 2235.76426 2014.52495 13 13 INV N 20 43 09.0 W 67.5000 2298.89875 1990.64428 14 14 INV N 56 18 15.0 E 275.6600 2451.83048 2219.99187 15 RADIAL N 33 41 45.0 W DELTA 76 39 27.0 RT RADIUS 15.0000 TAN 11.8585 L -ARC 20.0689 RADIAL N 42 57 42.0 E RP 2439.35057 2228.31363 16 15 CHORD S 85 22 01.5 E 18.6052 2450.32771 2238.53626 17 TAN @PT S 47 02 18.0 E RADIAL S 42 57 42.0 W DELTA 87 19 46.0 LT RADIUS 50.0000 TAN 47.7222 L -ARC 76.2093 RADIAL S 44 22 04.0 E RP 2486.91820 2272.61171 18 17 CHORD N 89 17 49.0 E 69.0437 2451.17490 2307.57478 19 TAN @PT N 45 37 56.0 E 19 INV S 2 51 52.0 E 536.8000 1915.04560 2334.40037 20 20 INV S 43 26 16.0 W 345.1800 1664.40299 2097.06620 21 21 INV N 60 25 32.0 W 59.1300 1693.58684 2045.63994 22 22 INV S 64 26 37.0 W 96.4300 1651.98701 1958.64454 23 23 INV N 20 37 01.0 W 125.0000 1768.98144 1914.62973 24 RADIAL S 20 37 01.0 E DELTA 17 19 26.0 RT RADIUS 435.0000 TAN 66.2687 L -ARC 131.5261 RADIAL S 3 17 35.0 E RP 2176.12206 1761.45820 25 24 CHORD S 78 02 42.0 W 131.0257 1741.84034 1786.44592 26 TAN @PT S 86 42 25.0 W RADIAL N 3 17 35.0 W DELTA 26 36 16.0 LT' RADIUS 385.0000 TAN 91.0259 L -ARC 178.7690 RADIAL N 29 53 51.0 W RP 1357.47605 1808.56148 27 26 CHORD S 73 24 17.0 W 177.1674 1691.23968 1616.65826 28 TAN @PT S 60 06 09.0 W 28 INV S 29 53 51.0 E 164.9100 1548.27615 1698.85764 51 51 INV N 89 20 22.0 W 148.8600 1549.99230 1550.00753 52 52 FROM LAT & DEP 0.00770 -0.00753 HCLOSE N 44 21 15.2 W 0.0108 1550.00000 1550.00000 1 PREC = 1 TO 310026 Area = 354600.71 sq ft 8.14051 ac ANGLE DIST NORTH EAST TO BLOCK 1 SIDELINES AUTO INVERSE ***** START 1682.89976 1479^45820 3 3 INV N 19 34 33.0 W 126.6200 1802°20098 1437.03364 4 4 INV N 73 19 08.0 E 24.4200 1809.21061 1460.42597 5 5 INV N 63 17 21.0 E 96.4600 1852.56821 1546.59238 6 6 INV N 56 18 15.0 E 84.0800 1899.21445 1616^54648 7 7 INV N 80 17 39.0 E 165"9700 1927.19528 1780.14083 8 8 INV N 54 16 23.0 E 118.4400 1996.35513 1876.29149 9 9 INV N 33 41 45.0 W 63.2800 2049.00374 1841.18477 10 10 INV N 56 18 15.0 E 160.0000 2137.76917 1974.30388 11 11 INV N 53 53 14.0 E 58.3300 2172.14750 2021.42627 12 12 INV N 6 11 29.0 W 63^9900 2235.76426 2014.52495 13 13 INV N 20 43 09^0 W 67^5000 2298.89875 1990.64428 14 14 INV N 56 18 15^0 E 103.4200 2356.27450 2076.68914 29 RADIAL N 33 41 45.0 W DELTA 97 04 55.0 RT RADIUS 20.0000 TAN 22.6385 L-ARC 33.8880 RADIAL N 63 23 10.0 E RP 2339.63461 2087.78482 30 29 CHORD S 75 09 17.5 E 29.9772 2348.59413 2105.66574 31 TAN@PT S 26 36 50.0 E RADIAL N 63 23 10.0 E DELTA 113 19 15.0 RT RADIUS 385"0000 TAN 585^2250 L-ARC 761.4613 RADIAL S 3 17 35.0 E RP 2176.12343 1761.45815 32 31 CHORD S 30 02 47.5 W 643.2795 1791.75915 1783.57372 33 TAN@PT S 86 42 25"0 W RADIAL N 3 17 35.0 W DELTA 26 36 16.0 LT RADIUS 435.0000 TAN 102.8475 L-ARC 201.9858 RADIAL N 29 53 51.0 W RP 1357.47743 1808.56143 34 33 CHORD S 73 24 17.0 W 200.1761 1734.58698 1591.73572 35 TAN@PT S 60 06 09.0 W RADIAL 8 29 53 51.0 E DELTA 10 21 08"0 RT RADIUS 685.0000 TAN 62.0519 L-ARC 123.7660 RADIAL S 19 32 43.0 E RP 2328.43615 1250.29753 36 35 CHORD S 65 16 43.0 W 123.5978 1682.89762 1479.46543 37 TAN@PT S 70 27 17.0 W LAT & DEP 0^00213 -0.00723 37 HCLOSE N 73 32 57.1 W 0.0075 1682.89976 1479^45820 3 PREC = 1 TO 299088 Area = 147657.79 sq ft 3^38976 ac FROM ANGLE DIST NORTH EAST TO BLOCK 2 SIDELINES AUTO INVERSE ^^.... oTnoT 04`:1 n'701An ���� nQ1n7 1 =. RADIAL N 33 41 45.0 W DELTA 76 39 27 RT RADIUS 1. 000 TAN 11.8585 L -ARC 20.0689 RADIAL N 42 57 42.0 E RP 2439.35057 2228.31363 16 15 CHORD S 85 22 01.5 E 18.6052 2450.32771 2238.53626 17 TAN @PT S 47 02 18.0 E RADIAL S 42 57 42.0 W DELTA 87 19 46.0 LT RADIUS 50.0000 TAN 47.7222 L -ARC 76.2093 RADIAL S 44 22 04.0 E RP 2486.91820 2272.61171 18 17 CHORD N 89 17 49.0 E 69.0437 2451.17490 2307.57478 19 TAN @PT N 45 37 56.0 E 19 INV S 2 51 52.0 E 536.8000 1915.04560 2334.40037 20 20 INV S 43 26 16.0 W 345.1800 1664.40299 2097.06620 21 21 INV N 60 25 32.0 W 59.1300 1693.58684 2045.63994 22 22 INV S 64 26 37.0 W 96.4300 1651.98701 1958.64454 23 23 INV N 20 37 01.0 W 125.0000 1768.98144 1914.62973 24 RADIAL S 20 37 01.0 E DELTA 97 24 11.0 LT RADIUS 435.0000 TAN 495.1767 L -ARC 739.5017 RADIAL N 61 58 48.0 E RP 2176.12206 1761.45820 38 24 CHORD N 20 40 53.5 E 653.6151 2380.47625 2145.46909 39 TRN @PT N 28 01 12.0 W RADIAL S 61 58 48.0 W DELTA 84 19 27.0 RT RADIUS 20.0000 TAN 18.1108 L -ARC 29.4347 RADIAL N 33 41 45.0 W RP 2389.87184 2163.12477 • 40 39 CHORD N 14 08 31.5 E 26.8492 2406.51173 2152.02909 41 TAN @PT N 56 18 15.0 E 41 INV N 56 1815.0 E 81.6900 2451.83203 2219.99472 42 LAT & DEP - 0.00155 - 0.00285 42 HCLOSE S 61 28 33.0 W 0.0032 2451.83048 2219.99187 15 PREC = 1 TO 651317 Area = 133480.27 sq ft 3.06429 ac FROM ANGLE DIST NORTH EAST TO BLOCK 3 SIDELINES AUTO INVERSE * * * ** START 1691.23968 1616.65826 28 28 INV 8 29 53 51.0 E 164.9100 1548.27615 1698.85764 51 51 INV N 89 20 22.0 W 148.8600 1549.99230 1550.00753 52 52 INV N 21 04 58.0 W 99.1300 1642.48670 1514.34885 53 RADIAL S 21 03 15.0 E DELTA 8 50 36.0 LT RADIUS 735.0000 TAN 56.8348 L -ARC 113.4438 RADIAL S 29 53 51.0 E RP 2328.41899 1250.29982 54 53 CHORD N 64 31 27.0 E 113.3312 1691.23390 1616.66050 55 TRN @PT N 60 06 09.0 E LAT & DEP 0.00578 - 0.00224 55 HCLOSE N 21 11 10.1 W 0.0062 1691.23968 1616.65826 28 PREC = 1 TO 84929 Area = 16004.61 sq ft 0.36742 ac FROM ANGLE DIST NORTH EAST TO CENTERLINE RENZE DRIVE AUTO INVERSE * * * ** START 1642.49441 1514.34132 2 2 INV N 40 48 18.0 W 26.6200 1662.64410 1496.94550 43 RADIAL S 20 19 46.0 E DELTA 9 34 05.0 LT RADIUS 710. 0000 TAN 59.4210 L -ARC 118.5658 RADIAL S 29 53 51.0 E RP 2328.41857 1250.27901 44 43 CHORD N 64 53 11.5 E 118.4281 1712.90643 1604.17845 45 TAN @PT N 60 06 09.0 E RADIAL N 29 53 51.0 W DELTA 26 36 16.0 RT RADIUS 410.0000 TAN 96.9367 LrARC 190.3774 RADIAL N 3 17 35.0 W RP 1357.46985 1808.54292 46 45 CHORD N 73 24 17.0 E 188.6717 1766.79285 1784.99128 47 TAN @PT N 86 42 25.0 E RADIAL S 3 17 35.0 E DELTA 116 54 25.0 LT RADIUS 410.0000 TAN 667.8412 L -ARC 836.5686 RADIAL N 59 48 00.0 E RP 2176.11585 1761.43964 48 47 CHORD N 28 15 12.5 E 698.8168 2382.35403 2115.79231 49 TAN @PT N 30 12 00.0 W 49 INV N 56 18 15.0 E 125.2200 2451.82407 2219.97465 50 LAT & DEP 0.00641 0.01722 50 HCLOSE N 69 34 49.3 E 0.0184 2451.83048 2219.99187 15 PREC = 1 TO 70615 Na Area ERROR:Invalid Command: p 1684b ridgemont estates north 3rd add plat boundry 11 -3 -93 d. b. . FROM ANGLE DIST NORTH EAST TO P 1684B RIDGEMONT ESTATES NORTH 3RD ADD PLAT BOUNDRY 11 -3 -93 D.B. AUTO INVERSE * * * ** START 1550.00000 1550.00000 1 1 INV N 21 04 58.0 W 99.1300 1642.49441 1514.34132 2 2 INV N 40 48 18.0 W 53.3800 1682.89976 1479.45820 3 3 INV N 19 34 33.0 W 126.6200 1802.20098 1437.03364 4 4 INV N 73 19 08.0 E 24.4200 1809.21061 1460.42597 5 5 INV N 63 17 21.0 E 96.4600 1852.56821 1546.59238 6 6 INV N 56 18 15.0 E 84.0800 1899.21445 1616.54648 7 7 INV N 80 17 39.0 E 165.9700 1927.19528 1780.14083 8 8 INV N 54 16 23.0 E 118.4400 1996.35513 1876.29149 9 9 INV N 39 32 32.0 E 227.9600 2172.14777 2021.42147 10 10 INV N 6 11 29.0 W 63.9900 2235.76453 2014.52015 11 11 INV N 20 43 09.0 W 67.5000 2298.89901 1990.63948 12 12 INV N 56 18 15.0 E 275.6600 2451.83075 2219.98707 13 RADIAL N 33 41 45.0 W DELTA 76 39 27.0 RT RADIUS 15.0000 TAN 11.8585 L -ARC 20.0689 RADIAL N 42 57 42.0 E RP 2439.35083 2228.30883 14 13 CHORD S 85 22 01.5 E 18.6052 2450.32798 2238.53147 15 TAN @PT S 47 02 18.0 E RADIAL S 42 57 42.0 W DELTA 87 19 46.0 LT RADIUS 50.0000 TAN 47.7222 L -ARC 76.2093 RADIAL S 44 22 04.0 E RP 2486.91847 2272.60691 16 15 CHORD N 89 17 49.0 E 69.0437 2451.17517 2307.56998 17 TAN @PT N 45 37 56.0 E 17 INV S 2 51 52.0 E 536.8000 1915.04587 2334.39558 18 18 INV S 43 26 16.0 W 345.1800 1664.40326 2097.06140 19 19 INV N 60 25 32.0 W 59.1300 1693.58710 2045.63514 20 20 INV S 64 26 37.0 W 96.4300 1651.98728 1958.63974 21 21 INV N20 37 01.0 W 125.0000 1768.98171 1914.62493 22 RADIAL S 20 37 01.0 E DELTA 17 19 26.0 RT RADIUS 435.0000 TAN 66.2687 L -ARC 131.5261 RADIAL S 3 17 35.0 E RP 2176.12233 1761.45340 23 22 CHORD S 78 02 42.0 W 131.0257 1741.84061 1786.44112 24 TAN @PT S 86 42 25.0 W RADIAL N 3 17 35.0 W DELTA 26 36 16.0 LT RADIUS 385.0000 TAN 91.0259 L -RRC 178.7690 RADIAL N 29 53 51.0 W RP 1357.47632 1808.55668 25 24 CHORD S 73 24 17.0 W 177.1674 1691.23994 1616.65347 26 TAN @PT S 60 06 09.0 W 26 INV S 29 53 51.0 E 164.9100 1548.27641 1698.85284 27 27 INV N 89 20 22.0 W 148.8600 1549.99256 1550.00273 28 LAT & DEP 0.00744 - 0.00273 28 HCLOSE N 20 11 22.0 W 0.0079 1550.00000 1550.00000 1 PREC = 1 TO 414825 Area = 347888.51 sq ft 7.98642 ac FROM ANGLE DIST NORTH EAST TO , 1 BLOCK 1 SIDELINES AUTO INVERSE * * * ** START 1682.89976 1479.45820 3 3 INV N 19 34 33.0 W 126.6200 1802.20098 1437.03364 4 4 INV N 73 19 08.0 E 24.4200 1809.21061 1460.42597 5 5 INV N 63 17 21.0 E 96.4600 1852.56821 1546.59238 6 6 INV N 56 18 15.0 E 84.0800 1899.21445 1616.54648 7 7 INV N 80 17 39.0 E 165.9700 1927.19528 1780.14083 8 8 INV N 54 16 23.0 E 118.4400 1996.35513 1076.29149 9 9 INV N 39 32 32.0 E 227.9600 2172.14777 2021.42147 10 10 INV N 6 11 29.0 W 63.9900 2235.76453 2014.52015 11 11 INV N 20 43 09.0 W 67.5000 2298.89901 1990.63948 12 12 INV N 56 18 15.0 E 103.4200 2356.27477 2076.68435 29 RADIAL N 33 41 45.0 W DELTA 97 04 55.0 RT RADIUS 20.0000 TAN 22.6385 L -ARC 33.8880 RADIAL N 63 23 10.0 E RP 2339.63488 2087.78002 30 29 CHORD S 75 09 17.5 E 29.9772 2348.59439 2105.66094 31 TAN @PT S 26 36 50.0 E RADIAL N 63 23 10.0 E DELTA 113 19 15.0 RT RADIUS 385.0000 TAN 585. 2250 L -ARC 761.4613 RADIAL S 3 17 35.0 E RP 2176.12370 1761.45336 32 31 CHORD S 30 02 47.5 W 643.2795 1791.75942 1783.56892 33 TAN @PT S 86 42 25.0 W RADIAL N 3 17 35.0 W DELTA 26 36 16.0 LT RADIUS 435.0000 TAN 102.8475 L -ARC 201.9858 RADIAL N 29 53 51.0 W RP 1357.47770 1808.55663 34 33 CHORD S 73 24 17.0 W 200.1761 1734.58724 1591.73092 35 TAN @PT S 60 06 09.0 W RADIAL S 29 53 51.0 E DELTA 10 21 08.0 RT RADIUS 685.0000 - TAN 62.0519 L -ARC 123.7660 RADIAL S 19 32 43.0 E RP 2328.42642 1250.29273 36 35 CHORD S 65 16 43.0 W 123.5978 1682.89789 1479.46063 37 TAN @PT 8 70 27 17.0 W LAT & DEP 0.00187 - 0.00243 37 HCLOSE N 52 27 57.6 W 0.0031 1682.89976 1479.45820 PREC = 1 TO 718238 Area = 140946.20 sq ft 3.23568 ac FROM ANGLE DIST NORTH EAST TO BLOCK 2 SIDELINES AUTO INVERSE -- ***** START 2451.E 75 2219.98707 13 RADIAL N 33 41 45.0 W 11FI TQ 7h 7.9 27.0 RT • RADIUS 15.0000 TAN 11.8585 _ L -ARC 20. 19 RADIAL N 42 57 42.k. E RP 2439.35083 2228.30883 14 13 CHORD S 85 22 01.5 E 18.6052 2450.32798 2238.53147 15 TAN @PT S 47 02 18.0 E RADIAL S 42 57 42.0 W DELTA 87 19 46.0 LT RADIUS 50.0000 TAN 47.7222 L -ARC 76.2093 RADIAL S 44 22 04.0 E RP 2486.91847 2272.60691 16 15 CHORD N 89 17 49.0 E 69.0437 2451.17517 2307.56998 17 TAN @PT N 45 37 56.0 E 17 INV S 2 51 52.0 E 536.8000 1915.04587 2334.39558 18 18 INV S 43 26 16.0 W 345.1800 1664.40326 2097.06140 19 19 INV N 60 25 32.0 W 59.1300 1693.58710 2045.63514 20 20 INV S 64 26 37.0 W 96.4300 1651.98728 1958.63974 21 21 INV N 20 37 01.0 W 125.0000 1768.98171 1914.62493 22 RADIAL S 20 37 01.0 E DELTA 97 24 11.0 LT RADIUS 435.0000 TAN 495.1767 L -ARC 739.5017 RADIAL N 61 58 48.0 E RP 2176.12233 1761.45340 38 22 CHORD N 20 40 53.5 E 653.6151 2380.47651 2145.46430 39 TAN @PT N 28 01 12.0 W RADIAL S 61 58 48.0 W DELTA 84 19 27.0 RT RADIUS 20.0000 TAN 18.1108 L -ARC 29.4347 RADIAL N 33 41 45.0 W RP 2389.87211 2163.11997 40 39 CHORD N 14 08 31.5 E 26.8492 2406.51200 2152.02429 41 TAN @PT N 56 18 15.0 E 41 INV N 56 18 15.0 E 81.6900 2451.83230 2219.98992 42 LAT & DEP - 0.00155 - 0.00285 42 HCLOSE S 61 28 33.0 W 0.0032 2451.83075 2219.98707 13 PREC = 1 TO 651317 Area = 133480.27 sq ft 3.06429 ac FROM ANGLE DIST NORTH EAST TO CENTERLINE RENZ DRIVE AUTO INVERSE * * * ** START 1642.49441 1514.34132 2 2 INV N 40 48 18.0 W 26.6200 1662.64410 1496.94550 43 RADIAL S 20 19 46.0 E DELTA 9 34 05.0 LT RADIUS 710.0000 TAN 59.4210 L -ARC 118.5658 RADIAL S 29 53 51.0 E RP 2328.41857 1250.27901 44 43 CHORD N 64 53 11.5 E 118.4281 1712.90643 1604.17845 45 TAN @PT N 60 06 09.0 E RADIAL N 29 53 51.0 W DELTA 26 36 16.0 RT RADIUS 410.0000 TAN 96.9367 L -ARC 190.3774 RADIAL N 3 17 35.0 W RP 1357.46985 1808.54292 46 45 CHORD N 73 24 17.0 E 188.6717 1766.79285 1784.99128 47 TAN @PT N 86 42 25.0 E RADIAL S 3 17 35.0 E DELTA 116 54 25.0 LT RADIUS 410.0000 TAN 667. 8412 L —ARC 836.5686 RADIAL N 59 48 00.0 E RP 2176.11585 1761.43964 48 47 CHORD N 28 15 12.5 E 698.8168 2382.35403 2115.79231 49 TAN @PT N 30 12 00.0 W 49 INV N 56 18 15.0 E 125.2200 2451.82407 2219.97465 50 LAT & DEP 0.00668 0.01242 50 HCLOSE N 61 44 07.1 E 0.0141 2451.83075 2219.98707 13 PREC = 1 TO 92002 No Area FROM ANGLE DIST NORTH EAST TO P1684B RIDGEMONT ESTATES NORTH 3RD ADD PLAT BOUNDRY 5 -10 -93 DcB. AUTO INVERSE * * * ** START 1550.00000 1550.00000 1 1 INV N 21 04 58.0 W 99.1300 1642.49441 1514.34132 2 2 INV N 40 48 18.0 W 53.3800 1682.89976 1479.45820 3 3 INV N 19 34 33.0 W 126.6200 1802.20098 1437.03364 4 4 INV N 73 19 08.0 E 24.4200 1809.21061 1460.42597 5 5 INV N 63 17 21.0 E 96.4600 1852.56821 1546.59238 6 6 INV N 56 18 15.0 E 150.9700 1936.32394 1672.19859 7 7 INV S 13 15 22.0 E 34.6400 1902.60693 1680.14169 8 8 INV N 76 11 03.0 E 227.8700 1957.02270 1901.41902 9 9 INV N 29 09 14.0 E 246.3400 2172.15498 2021.42528 10 10 INV N 6 11 29.0 W 63.9900 2235.77173 2014.52396 11 11 INV N 20 43 09.0 W 67.5000 2298.90622 1990.64328 12 12 INV N 56 18 15.0 E 275.6600 2451.83796 2219.99088 13 RADIAL N 33 41 45.0 W DELTA 76 39 27.0 RT RADIUS 15.0000 TAN 11.8585 L -ARC 20.0689 RADIAL N 42 57 42.0 E RP 2439.35804 2228.31264 14 13 CHORD S 85 22 01.5 E 18.6052 2450.33519 2238.53527 15 TAN @PT S 47 02 18.0 E RADIAL S 42 57 42.0 W DELTA 87 19 46.0 LT RADIUS 50.0000 TAN 47.7222 L -ARC 76.2093 RADIAL S 44 22 04.0 E RP 2486.92568 2272.61072 16 15 CHORD N 89 17 49.0 E 69.0437 2451.18238 2307.57379 17 TAN @PT N 45 37 56.0 E 17 INV S 2 51 52.0 E 536.8000 1915.05308 2334.39938 18 18 INV S 43 26 16.0 W 345.1800 1664.41046 2097.06520 19 19 INV N 60 32.0 W 59.1300 1693.59431 2045.63895 20 20 INV S 64 26 37.0 W 96.4300 1651.99449 1958.64355 21 21 INV N 20 37 01.0 W 125.0000 1768.98892 1914.62874 22 RADIAL S 20 37 01.0 E DELTA 17 19 26.0 RT RADIUS 435.0000 TAN 66.2687 L -ARC 131.5261 RADIAL S 3 17 35.0 E RP 2176.12953 1761.45721 23 22 CHORD S 78 02 42.0 W 131.0257 1741.84781 1786.44493 24 TAN @PT S 86 42 25.0 W RADIAL N 3 17 35.0 W DELTA 26 36 16.0 LT RADIUS 385.0000 TAN 91.0259 L -ARC 178.7690 RADIAL N 29 53 51.0 W RP 1357.48353 1808.56049 25 24 CHORD S 73 24 17.0 W 177.1674 1691.24715 1616.65727 26 TAN @PT S 60 06 09.0 W 26 INV S 29 53 51.0 E 164.9100 1548.28362 1698.85665 27 27 INV N 89 20 22.0 W 148.8600 1549.99977 1550.00654 28 LAT & DEP 0.00023 - 0.00654 28 HCLOSE N 87 59 58.4 W 0.0065 1550.00000 1550.00000 1 PREC = 1 TO 511848 Area = 340538.61 sq ft 7.81769 ac FROM ANGLE DIST NORTH EAST TO BLOCK J SIDELINES AUTO INVERSE * * * ** START 1682.89976 1479.45820 3 3 INV N 19 34 33.0 W 126.6200 1802.20098 1437.03364 4 4 INV N 73 19 08.0 E 24.4200 1809.21061 1460.42597 5 5 INV N 63 17 21.0 E 96.4600 1852.56821 1546.59238 6 6 INV N 56 18 15.0 E 150.9700 1936.32394 1672.19859 7 7 INV S 13 15 22.0 E 34.6400 1902.60693 1680.14169 8 8 INV N 76 11 03.0 E 227.8700 1957.02270 1901.41902 9 9 INV N 29 09 14.0 E 246.3400 2172.15498 2021.42528 10 10 INV N 6 11 29.0 W 63.9900 2235.77173 2014.52396 11 11 INV N 20 43 09.0 W 67.5000 2298.90622 1990.64328 12 12 INV N 56 18 15.0 E 103.4200 2356.28197 2076.68815 29 RADIAL N 33 41 45.0 W DELTA 97 04 55.0 RT RADIUS 20.0000 TAN 22.6385 L -ARC 33.8880 RADIAL N 63 23 10.0 E RP 2339.64209 2087.78383 30 29 CHORD S 75 09 17.5 E 29.9772 2348.60160 2105.66474 31 TAN @PT S 26 36 50.0 E RADIAL N 63 23 10.0 E DELTA 113 19 15.0 RT RADIUS 385.0000 TAN 585.2250 L -ARC 761.4613 RADIAL 5 3 17 35.0 E RP 2176.13091 1761.45716 32 31 CHORD S 30 02 47.5 W 643.2795 1791.76663 1783.57273 33 TAN @PT S 86 42 25.0 W RADIAL N 3 17 35.0 W DELTA 26 36 16.0 LT RADIUS 435.0000 TAN 102.8475 L -ARC 201.9858 RADIAL N 29 53 51.0 W RP 1357.48491 1808.56044 34 33 CHORD S 73 24 17.0 W 200.1761 1734.59445 1591.73473 35 TAN @PT S 60 06 09.0 W RADIAL S 29 53 51.0 E DELTA 10 21 08.0 RT RADIUS 685.0000 TAN 62.0519 L -ARC 123.7660 RADIAL S 19 32 43.0 E RP 2328.43362 1250.29654 36 35 CHORD S 65 16 43.0 W 123.5978 1682.90510 1479.46443 37 TAN @PT S 70 27 17.0 W LAT & DEP - 0.00534 - 0.00624 37 HCLOSE S 49 24 57.8 W 0.0082 1682.89976 1479.45820 3 PREC = 1 TO 275671 Area = 133595.29 sq ft 3.06693 ac FROM ANGLE DIST NORTH EAST TO P16848 RIDGEMONT ESTATES NORTH 3RD ADD PLAT BOUNDRY 4 -16 -93 D.B. AUTO INVERSE * * * ** START 1550.00000 1550.00000 1 1 INV N 21 04 58.0 W 99.1300 1642.49441 1514.34132 2 2 INV N 40 48 18.0 W 53.3800 1682.89976 1479.45820 3 3 INV N 19 34 33.0 W 126.6200 1802.20098 1437.03364 4 4 INV N 73 19 08.0 E 24.4200 1809.21061 1460.42597 5 5 INV N 63 17 21.0 E 96.4600 1852.56821 1546.59238 6 6 INV N 56 18 15.0 E 150.9700 1936.32394 1672.19859 7 7 INV S 13 15 22.0 E 34.6400 1902.60693 1680.14169 8 8 INV N 76 11 03.0 E 227.8700 1957.02270 1901.41902 9 9 INV N 29,09 14.0 E 246.33 03"( 2172. 14624 2021.42040 10 10 INV N 6 11 29.0 W 63.9900 2235.76300 2014.51909 11 11 INV N 20 43 09.0 W 67.5000 2298.89749 1990.63841 12 12 INV N 56 18 15.0 E 275.6600 2451.82923 2219.98601 13 RRDIAL N 33 41 45.0 W DELTA 76 39 27.0 RT RADIUS 15.0000 TAN 11.8585 L -ARC 20.0689 RRDIAL N 42 57 42.0 E RP 2439.34931 2228.30777 14 13 CHORD S 85 22 01.5 E 18.6052 2450.32646 2238.53040 15 TRN@PT S 47 02 18.0 E RADIAL S 42 57 42.0 W DELTA 87 19 46.0 LT RADIUS 50.0000 TAN 47.7222 L -ARC 76.2093 RADIAL S 44 22 04.0 E RP 2486.91695 2272.60585 16 15 CHORD N 89 17 49.0 E 69.0437 2451.17364 2307.56892 17 TRN @PT N 45 37 56.0 E INV S 2 51 52.0 E 536.8 000 1915.04434 2334.39451 18 INV S 43 26 16.0 W 345.1800 1664.40173 2 097.06 033 19 19 INV N 60 25 32.0 W 59.1300 1693.58558 2045.63408 20 20 INV S 64 26 37.0 W •96.4300 1651.98575 1958.63868 21 21 INV N 20 37 01.0 W 125.0000 1768.98018 1914.62387 22 RADIAL S 20 37 01.0 E DELTA 17 19 26.0 RT RADIUS 435.0000 TAN 66.2687 L -ARC 131.5261 RRDIAL S 3 17 35.0 E RP 2176.12080 1761.45234 23 22 CHORD S 78 02 42.0 W 131.0257 1741.83908 1786.44005 24 TAN @PT S 86 42 25.0 W RADIAL N 3 17 35.0 W DELTA 26 36 16.0 LT RADIUS 385.0000 TAN 91.0259 L -ARC 178.7690 RRDIAL N 29 53 51.0 W RP 1357.47480 1808.55562 25 24 CHORD S 73 24 17.0 W 177.1674 1691.23842 1616.65240 26 TRN @PT S 60 06 09.0 W 26 INV S 29 53 51.0 E 164.9100 1548.27489 1698.85178 27 27 INV N 89 20 22.0 W 148.8600 1549.99104 1550.00167 28 1 3T A. f1CG Oi manQc. -Ot MMIL7 28 HCLOSE N 10 33 01.4 W 0.0091 1550.00000 1550.00000 1 PREC = 1 TO 367481 Area = 340539.70 sq ft 7.81772 ac FROM ANGLE DIST NORTH EAST TO BLOCK 3 SIDELINES AUTO INVERSE * * * ** START 1550.00000 1550.00000 1 1 INV N 21 04 58.0 W 99.1300 1642.49441 1514.34132 2 RADIAL S 21 03 15.0 E DELTA 8 50 36.0 LT RADIUS 735.0000 TAN 56.8348 L -ARC 113.4438 RADIAL S 29 53 51.0 E RP 2328.42670 1250.29229 38 2 CHORD N 64 31 27.0 E 113.3312 1691.24160 1616.65297 39 TAN @PT N 60 06 09.0 E 39 INV S 29 53 51.0 E 164.9100 1548.27807 1698.85235 40 40 INV N 89 20 22.0 W 148.8600 1549.99422 1550.00224 41 LAT & DEP 0.00578 - 0.00224 41 HCLOSE N 21 11 10.1 W 0.0062 1550.00000 1550.00000 1 PREC = 1 TO 84929 Area = 16005.31 sq ft 0.36743 ac FROM ANGLE DIST NORTH EAST TO BLOCK 2 SIDELINES AUTO INVERSE * * * ** START 2451.82923 2219.98601 13 RADIAL N 33 41 45.0 W DELTA 76 39 27.0 RT RADIUS 15.0000 TAN 11.8585 L -ARC 20.0689 RADIAL N 42 57 42.0 E RP 2439.34931 2228.30777 14 13 CHORD S 85 22 01.5 E 18.6052 2450.32646 2238.53040 15 TAN @PT S 47 02 18.0 E RADIAL S 42 57 42.0 W DELTA 87 19 46.0 LT RADIUS 50.0000 TAN 47.7222 L -ARC 76.2093 RADIAL S 44 22 04.0 E RP 2486.91695 2272.60585 16 15 CHORD N 89 17 49.0 E 69.0437 2451.17364 2307.56892 17 TAN @PT N 45 37 56.0 E 17 INV S 2 51 52.0 E 536.8000 1915.04434 2334.39451 18 18 INV S 43 26 16.0 W 345.1800 1664.40173 2097.06033 19 19 INV N 60 25 32.0 W 59.1300 1693.58558 2045.63408 20 20 INV S 64 26 37.0 W 96.4300 1651.98575 1958.63868 21 21 INV N 20 37 01.0 W 125.0000 1768.98018 1914.62387 22 RADIAL S 20 37 01.0 E DELTA 97 24 11.0 LT RADIUS 435.0000 TAN 495.1767 L -ARC 739.5017 RADIAL N 61 58 48.0 E RP 2176.12080 1761.45234 42 22 CHORD N 20 40 53.5 E 653.6151 2380.47499 2145.46323 43 TAN @PT N 28 01 12.0 W RADIAL S 61 58 48.0 W DELTA 84 19 27.0 RT RADIUS 20 '000 TAN 1l 108 L -ARC 29.4347 Ranrni N ;lz 41 4S_ m W RP '43 CHORD N 14 08 31.a E TAN@PT N 56 18 l:, w E 45 INV N 56 18 15:'0 E BLOCK 1 SIDELINES AUTO INVERSE * * * ** START 3 INV N 19 34 33.0 W 4 INV N 73 19 08.0 E 5 INV N 63 17 21.0 E 6 INV N 56 18 15.0 E 7 INV S 13 15 22.0 E 8 INV N 76 11 03.0 E 9 INV N 29 09 14.0 E 10 INV N 6 11 29.0 W 11 INV N 20 43 09.0 W 12 INV N 56 18 15.0 E RADIAL N 33 41 45.0 W DELTA 97 04 55.0 RT RADIUS 20.0000 TAN 22.6385 L -ARC 33.8880 RADIAL N 63 23 10.0 E RP 29 CHORD S 75 09 17.5 E TAN @PT 5 26 36 50.0 E RADIAL N 63 23 10.0 E DELTA 113 19 15.0 RT RADIUS 385.0000 TAN 585.2250 L -ARC 761.4613 RADIAL S 3 17 35.0 E RP 31 CHORD S 30 02 47.5 W TAN @PT S 86 42 25.0 W RADIAL N 3 17 35.0 W DELTA 26 36 16.0 LT RADIUS 435.0000 TAN 102.8475 L -ARC 201.9858 RADIAL N 29 53 51.0 W RP 33 CHORD S 73 24 17.0 W TAN@PT S 60 06 09.0 W RADIAL S 29 53 51.0 E DELTA 10 21 08.0 RT RADIUS 685.0000 TAN 62.0519 L -ARC 123.7660 RADIAL S 19 32 43.0 E RP 35 CHORD S 65 16 43.0 W TAN@PT S 70 27 17.0 W 26. 8492 81.6900 LAT & DEP - 0.00155 - 0.00285 46 HCLOSE S 61 28 33.0 W 0.0032 2451.82923 2219.98601 PREC = 1 TO 651317 Area = 133480.27 sq ft 3.06429 ac FROM ANGLE DIST NORTH EAST 126.6200 24. 4200 96.4600 150. 9700 34.6400 227.: 00 246 03 63. 9900 67.5000 103. 4200 29.9772 643.2795 200. 1761 123.5978 2389.87058 2406.x1047 2451.63077 1682.89976 1802.20098 1809.21061 1852.56821 1936. 32394 1902.60693 1957.02270 2172.14624 2235.76300 2298.89749 2356.27324 2339.63335 2348.59287 2176.12218 1791.75789 1357.47617 1734. 58572 2328.42489 1682.89637 2163.11890 2152.02323 2219.98885 1479.45820 1437.03364 1460.42597 1546.59238 1672.19859 1680.14169 1901.41902 2021. 42040 2014.51909 1990.63841 2076.68328 2087.77896 2105.65987 1761.45229 1783.56785 1808.55557 1591.72986 1250.29167 1479.45956 44 45 46 13 TO 3 4 5 6 7 8 9 10 11 12 29 30 31 32 33 34 35 36 37' LAT & DEP 0.00339 - 0.00136 37 HCLOSE N 21 54 10.9 W 0.0037 1682.89976 1479.45820 3 PREC = 1 TO 619111 Area = 133597.64 sq ft 3.06698 ac FROM ANGLE DIST NORTH EAST TO 1..r LIY I L1 \L LIYL MY YP91'ILY ul 1 l \LL 1 AUTO INVERSE * * * ** START 1642.49441 1514.34132 2 2 INV N 40 48 18.0 W 26.6200 1662.64410 1496.94550 50 RADIAL S 20 19 46.0 E DELTA 9 34 05.0 LT RADIUS 710.0000 TAN 59.4210 3 1. L -ARC 118.5658 RADIAL S 29 53 51.0 E RP 2328.41857 1250.27901 51 50 CHORD N 64 53 11.5 E 118.4281 1712.90643 1604.17845 52 TAN @FIT N 60 06 09.0 E RADIAL N 29 53 51.0 W DELTA 26 36 16.0 RT RADIUS 410.0000 TAN 96.9367 3i1. L -ARC 190.3774 1 RADIAL N 3 17 35.0 W 2C RP 1357.46985 1808.54292 53 52 CHORD N 73 24 17.0 E 188.6717 1766.79285 1784.99128 54 TAN @PT N 86 42 25.0 E RADIAL S 3 17 35.0 E DELTA 116 54 25.0 LT RADIUS 410.0000 TAN 667.8412 44- L -ARC 836.5686 RADIAL N 59 48 00.0 E 2 S RP 2176.11585 1761.43964 55 54 CHORD N 28 15 12.5 E 698.8168 2382.35403 2115.79231 56 TAN @PT N 30 12 00.0 W 56 INV S 56 18 15.0 W 47.0200 2356.26809 2076.67193 57 LAT & DEP 0.00515 0.01135 57 HCLOSE N 65 35 44.1 E 0.0125 2356.27324 2076.68328 29 PREC = 1 TO 97775 No Area • OFFICE OF THE COUNTY ENGINEER SPOKANE COUNTY, WASHINGTON TO: Jeff Forrey, Department of Buildings FROM: Bill Hemmings DATE: August 25, 1994 SUBJECT: B.C.C. resolution # 91 -0882 Implementation Attached are the individual lot plans for each lot containing a swale in RIDGEMONT EST NORTH 3RD,plat# P 1684B. Please give the appropriate lot plan to the individual applying for a building permit on the lot, so they can draw their house and approach to scale on the lot. We will need this plan, and the corresponding $1000.00 cash surety, in the form of cash, letter of credit, or savings assignment, before we can issue the approach permit. Also attached are the letter of credit and savings assignment forms. If you desire, we can meet to further discuss this new process. k\j\flassign.208 " (USE BANK LETTERHEAD) " BENEFICIARY: SPOKANE COUNTY ENGINEERS 1026 W BROADWAY SPOKANE, WA 99260 -0170 k \j\fiassign.208 "SAMPLE LETTER OF CREDIT' IRREVOCABLE LE'I"1'ER OF CREDIT AMOUNT: $ 1,000.00 NO. SUBJECT: LOT BLOCK RIDGEMONT EST NORTH 3RD (Plat) PLAT # P 1684B . (Development) Gentlemen: We hereby authorize our irrevocable Letter of Credit in your favor, and authorize you to draw on the a draft up to one thousand (Dollars) ($1,000.00), for the account of (bank), (developer). The draft, drawn under this Letter of Credit, covers the assurance of completion of installation of storm drainage, drainage swales, sod and other work as is incidental and related thereto in accordance with the drawings and specifications as submitted to and approved by the Spokane County Engineer's Office on (date), and is to be accompanied by the following documents: written request by Spokane County Engineer's Office to (bank), at the above address indicating non - completion of all or any of the above improvements and that amount of money required to complete such improvements. We hereby agree with the drawer, endorser and bona fide holder of this draft, negotiated under and in compliance with the terms of this credit, that said draft shall be duly honored upon presentation at the (bank), at any time before completion of the above - described improvements or performance, in which event written notice shall be given by Spokane County to the bank. (developer) shall be responsible for any cost incurred by the county in excess of the amount of security. Drafts, drawn under this Letter of Credit, shall bear on their face the words Drawn under Credit No. Dated Bank Name: (BANK NAME ADDRESS ZIP CODE PHONE # AND OTHER INFORMATION) By: (bank) ,(bank address) (authorized signor CI "AGREEMENT" In consideration of the issuance of a building permit for Lot , Block RIDGEMONT EST NORTH 3RD (plat) plat # P 16846 (Developer) has deposited $1,000.00 with Spokane County as security for full and faithful performance by Developer respecting certain drainage facilities and sod in accordance with the drawings and specifications as submitted to and approved by the Spokane County Engineers Office on (date) 199 Developer hereby agrees that should such drainage facilities and sod not be constructed in accordance with the approved drawings within six months of occupancy, Spokane County may then use the security to bring these facilities and sod into conformance therewith. Developer shall be responsible for any costs incurred by the county in excess of the amount of security. Spokane County agrees to return to Developer any unused funds upon satisfactory completion of these facilities and sod. NAME & ADDRESS TO BE RETURNED TO: (Developer Signature) DATE kW\assign.208 DATED this day of President Secretary Notary Public in and for the State Savings Certificate Number in the face amount of and held in and by Bank of STATE OF WASHINGTON ) :ss County of Spokane ) k'jfiassign.208 $1.000.00 ASSIGNMENT For security purposes only, (developer) hereby assigns to SPOKANE COUNTY, a political subdivision of the State of Washington, the following: This assignment is made as security for the full and faithful performance by (developer) of certain drainage facilities and sod for LOT BLOCK . RIDGEMONT EST NORTH 3RD (Plat) Plat # P 1684B in accordance with the drawings: and specifications as submitted to and approved by the Spokane County Engineers office on (date) , 199 Any - interest benefits accruing under said savings certificate shall remain the property of Said savings certificate to be released to any other party only with the prior written consent and agreement of Spokane County. PROVIDED, FURTHER, the undersigned does hereby authorize (bank) to pay over to Spokane County all or a sufficient portion of the monies in the savings certificate referenced hereinabove upon written documentation being received from the Spokane County Engineer indicating that the purposes for which the savings certificate was assigned have not been fully and faithfully performed as required and a statement of that amount of money which the County Engineer as required and a statement of that amount of money which the County Engineer deems necessary to complete such obligation. Upon receipt of such written documentation, (developer) hereby authorizes (bank) to release to Spokane County that amount of money requested up to the maximum amount in the savings certificate. (developer) shall be responsible for any costs incurred by the county excess of the amount of security. , 199_ BANK OF DATED this day of , 199_ DEVELOPER Branch (bank address) On this day personally appeared before me to me known to be the individual described in and who executed the within and foregoing instrument, and acknowledged that signed the same as fret and voluntary act and deed, for the uses and purposes therein mentioned. GIVEN UNDER MY HAND AND OFFICIAL SEAL this day of , 199_ of Washington, residing at Spokane .(developer) (developer) 27" -Dia. R.C.P Culvert — 142 LF ±r? -1 %S. to N. I.E. 2021.50 (5) I E. 2020.00 (N) from CB, 5 +56.70 18' Lt. of tr, to Conc. Pad 4 Pond floor l -4 - 4 3 % - thick concrete pad mat culvert end, top of pad 2020.00 5 10' Drainage Easement - - Building Setback Line Cone..- Infe1, Type 2, with -r -- Metal Frame & Grate, Type 2 Spokane County Standard Sta. 5 +50, 18' Lt. of C Top of Grate 2025.12 _ -- o e \ _ ■— 10 jt\ \,Its Eas JULY 15, 1994 10" -Dia. C M y J Conc. Inlet Ty —ti - Catch Basin Type 2 f p\ prox 6 Lf. I.E. 2022.70 (West) I.E. 2022.50 (East) LOT 6 BLOCK RIDGEMONT ESTATESAOR - T 3RD ADDITION GRAPHIC SCALE f lhl FEE f; 0 10 20 ^ 40 .• I i =1:urD Line / \\ \ 8" 1.1:- . Cam Y assn. Type 2, 4 D e. i ; cttc- ■\ -Plod B -le, W Metal Frame rate '" (J0i �\ Std. Plan B -lb. Inside or 2019 Top of Grate 2025.i6 S +Sj CT ic Lt \ 7npson Engineers, Inc. CIVIL ENUNEEKS & LAND SURVEz0FS N 909 ARCONNE ROAD SPO.(ARr, VIA 99212 Ph 925_1322 R, 30 . Building Setbac4 Lino See. 1 : Ditch Acce55 Rcnd. 161 77' 1150'15 10" W (c \ AUGUST 9, 1994 I EXPIRES 7m1 9s LOT 4 BLOCK 2 RIDGEMONT ESTATES NORTH 3RD ADDITION GRAPHIC SCALE (Ili FEET) 15 30 60 III !III 1 I 1 iii 1 u.I , 1111 = 30' ,c,.a, '. irnpson Engineers, Inc. CIVIL ENGINEERS & LAND SURVEYORS N.909 ARGONNE ROAD SPOnANE. WA 99212 Pn 926 -1327 I EXPIRES 7It2, 9,f DETAIL : DITCH ACCESS ROAD I SG*t55-EURE35 4- UT1LJTy E3HT. z7 NOT 7b SCALE 15' = 15' I5 -WiDE DIRT ACCESS ROAD1 ...34\ a<CVA•\ /h\ /.• \wit\il.A• V/o:(0 a`VAVC.0 ., RIDGEMONT ESTATES NORTH 3RD ADDITION DIWNAGE a"...e.MENT rnim•e 10 Simpson Engineers. Inc. CiVIE ENGiNEEPS k LAND SUavEYOPS N.909 ARGONNE ROAD SPO%AUE, WA 99212 PH 9 25 - 1J22 . d / / / / 589'46'02 "E 125.00' AUGUST 9, 1994 LOT 5 BLOCK 2 RID GEMONT ESTATES NORTH 3RD ADDITION I EXPIRES 707r P4 ri 0 c GRAPHIC SCALE (IN FEET) 0 15 30 60 11 11101 ill 111 1 " = 30' 5 " ra,■na■ a ism inlpson Engineers, Inc. CIVIL ENGINEERS d LAND SORVErORS N.909 ARGONNE ROAD SPOKANE. WA 99212 PH 926 -132? DETAIL DITCH ACCESS ROAD 1o4cotas5- E6str35 4. UTLry E.5 P-1 T. DRy E.VCJMEM 151 _ 15, 15 D IRT ACCE55 ICV'.D Z �e 2 Noy 7b SCALE RIDGEMONT ESTATES NORTH 3RD ADDITION Vimpsnn Engineers. Inc. CnnL ENFMEEns k LAND 5UP :POPS N.909 4 PCONNE 9040 Src+;nIJE. in 59212 PN 925 -1322 INTRODUCTION PROPOSAL SPOKANE COUNTY HEARING EXAMINER COMMITTEE FINDINGS OF FACT. CONCLUSIONS AND ORDER FINDINGS OF FACT AND CONCLUSIONS 10. The legal requirements for public notice have been fulfilled. The sponsor, Ken Tupper, requests approval of a Preliminary Plat of Ridgemont Estates North, PE- 1684 -92, with existing Urban Residential -3.5 (UR -3.5) zoning within the Aquifer Sensitive Area (ASA) Overlay zone. This matter has come before the Hearing Examiner Committee on January 21, 1993. The members of the Committee present are Phil Harris, Chairperson, Bud Skadan and Frank Yuse. 1. The property is generally located south of and adjacent to 16th Avenue and approximately 900 feet east of Sullivan Road in Section 25, Township 25 North, Range 44 EWM, Spokane County, Washington. The committee adopts the Planning Department Report as a part of this record. The Planning Department has recommended that the proposed plat be approved as conditioned. JAN 9 q 3. The existing land use(s) in the area are residential and agricultural. 4. The proposed use is compatible with existing uses in the area. 5. The Comprehensive Plan designates this site as Urban. The Urban category is for the purpose of residential uses, including residential densities of 1 to 17 units per acre, or 3.2 units for this proposal. 6. The proposed plat does implement and conform to the Comprehensive Plan. 7. The Arterial Road Plan designates 16th Avenue as an arterial, with a recommended right of way width of 80 feet. 8. The existing zoning of the property described in the application is Urban Residential -3.5 (UR -3.5), previously established as Agricultural zoning in 1942 and reclassified to Urban Residential -3.5 (UR -3.5) on January 1, 1991 pursuant to the Program to Implement the Spokane County Zoning Code. Pursuant to RCW 58.17.195 the proposal does conform to the requirements of the existing Urban Residential -3.5 (UR -3.5) zone. 9. The provisions of RCW 43.21C (The State Environmental Policy Act) have been complied with and a Determination of Nonsignificance was issued. The Committee, after independent review, hereby adopts the DNS. HEC Order for PE- 1684 -92 Page 2 11. The owners of adjacent lands expressed neither approval nor disapproval of the proposed use. 12. The proposed use will not be detrimental to the public health, safety, morals or welfare especially in light of the conditions recommended by the reviewing agencies. 13. The subdivision proposal is generally consistent with RCW 58.17 and the County subdivision regulations, promoting the public health, safety and general welfare in accordance with standards established by the state and Spokane County. The proposal as conditioned does provide adequate public facilities as cited in RCW 58.17.110 (2). More specifically: a. open spaces b. drainage ways c. public and/or private rights -of -way d. transit e. potable water f. sanitary waste disposal g. parks and recreation facilities h. playgrounds i. schools and schoolgrounds j. sidewalks The above improvements are either existing facilities or will be provided by the applicant upon finalization of this subdivision as conditioned by the Committee and implemented by the various County agencies. • CONDITIONS OR CONTINGENCIES APPLIED TO THIS APPROVAL 1. All Conditions imposed by the Hearing Examiner Committee shall be binding on the "Applicant," which term shall include the owner or owners of the property, heirs, assigns, and successors -in- interest. SPOKANE COUNTY PLANNING DEPARTMENT 1. The proposal shall comply with the Urban Residential -3.5 (UR -3.5) zone as amended. Note: A copy of the homeowner /property owners association covenants and restrictions shall be submitted for review and approval to the Planning Department prior to finalizing. Covenants shall state that duplexes are not allowed on lots containing 20,000 square feet or more. Appropriate provisions shall be made for maintenance of the lift station lot and drainage lot with the sponsor and the County Engineer and Utilities Department. 2 . The final plat shall be designed substantially in conformance with the preliminary plat of record. No increase of density or number of lots shall occur without a change of condition application submittal and approval. Note: Timberlane Road shall be contained wholly within the boundary of the final plat. 3. The Planning Director /designee shall review any proposed final plat to ensure compliance with these Findings and Conditions of Approval. HEC Order for PE- 1684 -92 Page 3 4. A final plat name/number shall be indicated before the final plat is filed, such name/number to be approved by the Planning Director /designee. 5. Appropriate road name(s) shall be indicated. 6. The preliminary plat is given conditional approval for three (3) years, specifically to February 1, 1996. The applicant may request an extension of time by submitting a written request approximately forty -five (45) days prior to the above expiration date. 7. Appropriate utility easements shall be indicated on copies of the proposed final plat. Written approval of utility easements by appropriate utility companies shall be received with the submittal of the final plat. The final plat map shall indicate by a clear, dashed line the required yard setbacks from all private, "Tract X" or public roads. The dedication shall contain the following statement: "Side yard and rear yard setbacks shall be determined at the time building permits are requested unless these setbacks are specifically drafted on this final plat. The setbacks indicated on this plat may be varied from if proper zoning approvals are obtained." 9. Three (3) current certificates of title shall be furnished to the Planning Department prior to filing the final plat. 10. Prior to filing of all or a portion of the final plat the applicant's surveyor shall submit one or more maps outlined in red of the area being finalized. The scale shall match the appropriate assessor's map scale. 11. The Spokane County Planning Department shall prepare and record with the County Auditor a Title Notice specifying a future land acquisition area for road right -of -way and utilities. The reserved future acquisition area Title Notice shall be released, in full or in part, by the Planning Department. The notice should be recorded within the same time frame as an appeal and shall provide the following: a. At least 10 feet of reserved future acquisition area for road right -of -way and utilities, in addition to the existing and/or newly dedicated right -of -way along 16th Avenue. NOTE: The County Engineer has required 0 feet of new dedication. b. Future building and other setbacks required by the Spokane County Zoning Code shall be measured from the reserved future acquisition area. c. No required landscaping, parking, '208' areas, drainfield or allowed signs should be located within the future acquisition area for road right -of -way and utilities. If any of the above improvements are made within this area, they shall be relocated at the applicant's expense when roadway improvements are made. d. The future acquisition area, until acquired, shall be private property and may be used as allowed in the zone, except that any improvements (such as HEC Order for PE- 1684 -92 Page 4 landscaping, parking, surface drainage, drainfield, signs or others) shall be considered interim uses. e. The property owner shall be responsible for relocating such "interim" improvements at the time Spokane County makes roadway improvements after acquiring said future acquisition area. 12. The final plat shall indicate yard setback arc lengths on cul-de -sac lots which meet or exceed the minimum frontage of the underlying zone of the final plat. 13. A plan for water facilities adequate for domestic service and fire protection shall be approved by the water purveyor, appropriate fire protection district, County Building & Safety Department and County Health District. The agencies will certify on the Water Plan, prior to the filing of a final plat, that the plan is in conformance with their respective needs and regulations. The Water Plan and certification shall be drafted on a transparency suitable for reproduction and be signed by the plat sponsor. 14. The water purveyor shall certify that appropriate contractual arrangements and schedule of improvements have been made with the plat sponsor for construction of the water system in accordance with the approved Water Plan. The time schedule shall provide for completion of the water system and inspection by the appropriate health authorities prior to application for building permits within the final plat. The arrangements or agreements shall include a provision holding Spokane County and the purveyor harmless from claims by any lot purchaser refused a building permit due to the failure of the subdivision sponsor to satisfactorily complete the approved water system. 15. The final plat dedication shall contain the following statement: "The public water system, pursuant to the Water Plan approved by county and state health authorities, the local fire protection district, County Building & Safety Department and water purveyor, shall be installed within this subdivision and the applicant shall provide for individual domestic water service as well as fire protection to each lot prior to sale of each lot and prior to issuance of a building permit for each lot." 16. No building permit will be issued for any lot within the final plat until certified by a Washington state - licensed engineer that "the water system has been installed pursuant to the approved Water Plan for the final plat " including a signed license stamp. The certification may be in the form of a letter, but is preferred to be certified on a copy of the Water Plan as a schematic map showing the "as- built" water system. 17. The Water Plan and the above four (4) conditions of approval regarding the Water Plan may be waived by the Planning Director /designee upon receipt of letters from the appropriate water purveyor and fire protection district stating that simple connections to an existing, approved water system will provide adequate domestic and fire protection water to ensure the public health, safety and general welfare. 18. A survey is required prior to the filing of a final plat. HEC Order for PE- 1684 -92 19. Prior to approval of road and drainage plans, you are required to coordinate with the United States Postal Service to determine type and location of central mail delivery facilities which may include applicable easements for developments of three or more homes. 20. The preliminary plat approval of PE- 1423 -82, that exists on this site shall become null and void and be replaced by this approval. Note: A portion of PE- 1423 -82, is 6111111 till active as it lies outside of this proposal, PE- 1684 -92. e plat dedication shall contain a statement to the effect that no duplex shall be lowed on lots of 20,000 square feet or greater. SPOKANE COUNTY DIVISION OF ENGINEERING AND ROADS Prior To Issuance Of A Building Permit Or Use Of The Property As Proposed: 1. The conditional approval of the plat is given by the County Engineer subject to dedication of right -of -way and approval of the road system as indicated in the preliminary plat of record_ tins, profiles, and cross - sections as designed to County standards showing proposed street centerline and curb grades shall be submitted to the County Engineer for approval prior to construction and/or the filing of each final plat; road plans to be prepared under the direction of a licensed Professional Civil Engineer. n nage plans and design calculations showing the alignment of drainage facilities _shall be submitted to the County Engineer for approval prior to construction and/or the filing of the final plat. Drainage plans to be prepared under the direction of a licensed Professional Civil Engineer. 4. Construction within the proposed public streets and easements shall be performed under the direct supervision of a licensed engineer /surveyor, who shall furnish the County Engineer with "as- built" plans and a certificate in writing that all improvements were installed to the lines and grades shown on the approved construction plans and that all disturbed monuments have been replaced. 5. No construction work is to be performed within the existing or proposed public right -of -way until a permit has been issued by the County Engineer. All work is subject to inspection and approval by the County Engineer. 6. All construction within the existing or proposed public right -of -way is to be completed prior to filing each final plat, or a bond in the amount estimated by the County Engineer to cover the cost of construction of improvements, construction certification, "as- built" plans and monumenting the street centerlines shall be filed with the County Engineer. Page 5 7. No direct access from lots to one -half (1/2) rights -of -way until such roads are constructed to County standards and established as County roads. 8. No direct access from lots to stub road connections until such roads are constructed to County standards and established as county roads. HEC Order for PE- 1684 -92 Page 6 9. Road design, construction, and drainage control for one -half (1/2) rights -of -way and stub road connections are the responsibility of the owner, developer or applicant. 10. That appropriate provision be made that the following described property be held in bust until the continuation of the streets be dedicated or deeded: A one foot strip at the ends or edges of all streets that terminate or border the plat boundary. (Temporary cul de sacs are required when streets terminate at the plat boundaries). 11. I driveway access permits are required prior to issuance of a building permit for driveway approaches to the county road system. 12. Existing county roads providing direct access to the plat shall be paved and/or curbed to Spokane County standards. 13. All public roads within the plat shall be designed and constructed to Spokane County standards. 14. The word "applicant" shall include the owner or owners of the property, his heirs, assigns and successors. 15. The County Engineer has designated Typical Roadway Section Number Two, Local Access standard for the improvement of All internal streets, including Timberlane Drive, which is to be constructed within the proposed development. This will require the installation of 36 feet of asphalt. The constriction of curbing is also required. • 16. The County Engineer has designated Typical Roadway Section standard for the improvement of Sullivan Road, which is adjacent to the proposed development. This will require the addition of varying amounts of asphalt along the frontage of the development. 17. The County Engineer has designated Typical Roadway Section Number Two, Local Access standard for the improvement of 16th Avenue from Sullivan Road to the east property line, which is adjacent to the proposed development. This will require varying amounts of asphalt along the frontage of the development. The construction of curbing and sidewalk is also required. 18. The proposed subdivision shall be improved to the standards set forth in Spokane County Board of Commissioners Resolution No. 80 -1592, as amended, which resolution establishes regulations for roads, approaches, drainage and fees in new construction. 19. The County Engineer has examined this development proposal and has determined that the impact of this proposal upon the existing county road system warrants the dedication of additional right -of -way and the roadway improvements herein specified. 20. There may exist utilities, either underground or overhead, affecting the subject property, including property to be dedicated or set aside for future acquisition. Spokane County assumes no financial obligation for adjustments or relocation regarding these utilities. Applicant(s) should check with the applicable utility purveyor and the Spokane County Engineer to determine whether applicant(s) or HEC Order for PE- 1684 -92 Special Condition; the utility is responsible for adjustment or relocation costs and to make arrangements for any necessary work. The County Arterial Road Plan identifies 16th Avenue as a Minor Arterial. The existing right -of -way width of 60 feet is not consistent with that specified in the Plan. In order to implement the Arterial Road Plan, in addition to the required right -of -way dedication, a strip of property 10 feet in width along the 16th Avenue frontage shall be set aside in reserve. This property may be acquired by Spokane County at the time when arterial improvements are made to 16th Avenue. s ting drainage easements for previous plats exists on the parcel to be platted. These easements must be changed and extinguished prior to final platting of the proposed development proposal. 23. 20th Avenue shall be constructed and dedicated from the proposed plat to Sullivan Road prior to final platting of any portion of the proposed plat. SPOKANE COUNTY DIVISION OF UTILITIES 1. Applicant will make connection to Public Sewer System. Sewer Connection Permit is required. Plans and specifications are to be reviewed and approved by the Utilities Department. SPOKANE COUNTY HEALTH DISTRICT Page 7 1. The final plat shall be designed as indicated on the preliminary plat of record and/or any attached sheets as noted. 2. Appropriate utility easements shall be indicated on copies of the preliminary plat of record for distribution by the Planning Department to the utility companies, Spokane County Engineer and the Spokane County Health District. Written approval of the easements by the utility companies must be received prior to the submittal of the final plat. 3. Sewage disposal method shall be as authorized by the Director of Utilities, Spokane County. 4. Water service shall be coordinated through the Director of Utilities, Spokane County. 5. Water service shall be by an existing public water supply when approved by the Regional Engineer (Spokane), State Department of Health. 6. Prior to filing the final plat, the sponsor shall demonstrate to the satisfaction of the Spokane County Health District that an adequate and potable water supply is available to each lot of the plat. 7 Prior to filing the final plat, the sponsor shall present evidence that the plat lies within the recorded service area of the water system proposed to serve the plat. HEC Order for PE- 1684 -92 Page 8 8. A plan for water facilities adequate for domestic use, domestic irrigation use and fire protection use shall be approved by the water purveyor. Said water plan must have been approved by the fire protection district and the appropriate health authorities. The health authorities, water supplier (purveyor) and the fire protection district will certify, prior to the filing of the final plat, on the face of said water plan that the plan is in conformance with their requirements and will adequately satisfy their respective needs. Said water plan and certification will be drafted on a transparency suitable for reproduction. 9. The purveyor will also certify prior to filing the final plat on a copy of said water plan that appropriate contractual arrangements have been made with the plat sponsor for construction of the water system, in accordance with the approved plan and time schedule. The time schedule will provide, in any case, for completion of the water system and inspection by the appropriate health authorities prior to application for building permits within the plat. The contractual arrangements will include a provision holding Spokane County /City of Spokane, Spokane County Health District and the purveyor harmless from claims by any lot/tract purchaser refused a building permit due to failure of the plat sponsor to satisfactorily complete the approved water system. 10. A public sewer system will be made available for the plat/project, and individual service will be provided to each lot prior to sale. Use of individual on -site sewage disposal systems shall not be authorized. 11. A statement shall be placed in the dedication to the effect that: "A public sewer system will be made available for the plat, and individual service will be provided to each lot prior to sale. Use of individual on -site sewage disposal systems shall not be authorized." 12. The dedicatory language on the plat shall state: "Use of private wells and water systems is prohibited." 13. The plat dedication will contain a statement to the effect that: "The public water system as approved by the County and State Health Authorities and the local fire district and purveyor will be installed within this plat, and the subdivider will provide for individual domestic water service as well as fire protection to each lot prior to sale of each lot and prior to issuance of a building permit for each lot. SPOKANE COUNTY DIVISION OF BUILDINGS 1. Fire flows are applicable for this proposal. The minimum fire flow and flow duration will be based on a representative dwelling size for all floors not including the basement. The maximum dwelling size needs to be submitted to the Department of Buildings. 2. An approved water supply capable of supplying the required fire flow for fir protection shall be provided before any building permits are issued. The water system shall be installed in accordance with an approved Water Systems Plan on file with the Department of Buildings. Certification that the installed system complies with the requirements of the plan and is operational shall be submitted to the Department of Buildings prior to permit issuance. HEC Order for PE- 1684 -92 SPOKANE COUNTY AIR POLLUTION CONTROL AUTHORITY Page 9 3. Hydrant location, number and type capable of delivering the required fire flow for residential development shall be provided in accordance with required design specifications. The average distance between hydrants shall be 600 feet and shall not exceed 700 feet. 1. All air pollution regulations must be met. 2. Air pollution regulations require that dust emissions during demolition, construction and excavation projects be controlled. This may require use of water sprays, tarps, sprinklers or suspension of activity during certain weather conditions. Haul roads should be treated, and emissions from the transfer of earthen material must be controlled, as well as emissions from all other construction- related activities. 3. All travelled surfaces (ie. ingress, egress, parking areas, access roads) should be paved and kept clean. 4. Measures must be taken to avoid the deposition of dirt and mud from unpaved surfaces onto paved surfaces. If tracking or spills occur on paved surfaces, measures must be taken immediately to clean these surfaces. 5. Debris generated as a result of this project must be disposed of by means other than burning (ie. construction waste, etc.). 6. Demolition and renovation projects must comply with the requirements of C.FR 40, Part 61, subpart M and SCAPCA Regulation I, Article IX. Intent to Demolish forms are available at the SCAPCA office. 7. all solid fuel burning devices (wood stoves, pellet stoves, etc...) must comply with local, state, and federal rules and regulations. HEC Order for PE- 1684 -92 Page 10 ORDER The Hearing Examiner Committee, pursuant to the above Findings of Fact and Conclusion, APPROVES the application of Ken Tupper for the Preliminary Plat as described in the application PE- 1684 -92 known as Ridgemont Estates North. Motion by: Frank Yuse Seconded by: Bud Skadan Vote: (3 -0) UNANIMOUS TO APPROVE THE PRELIMINARY PLAT WITH EXISTING URBAN RESIDENTIAL -3.5 (UR -3.5) ZONING HEARING EXAMINER COMMITTEE HEREBY Al LEST TO THE ABOVE FINDINGS, ORDER, AND VO ATTEST: For WALLIS D. HUBBARD Planning Director By&AUL F. JENSEN Cy Senior Planner p, ('29- 53 Pursuant to County regulations, any aggrieved party has the right to appeal this written decision to the Spokane County Board of County Commissioners within ten (10) calendar days of the signing of this order. Upon receipt of an appeal, a public hearing will be scheduled. If you desire to file such an appeal, you must submit a written appeal, preferably on forms designed for such purpose, to the Board of County Commissioners, W. 1116 Broadway, Spokane, WA 99260, along with a $200 processing fee payable to the Spokane County Treasurer. If you have any questions, please call the Planning Department at 456 -2205. • SUBMITTAL CHECKLIST PROJECT: ( Esutos At 4 Hdi. PROJECT SPONSOR: PROJECT SURVEYOR (Plat) YES V NO N/A PROJECT # REVIEW # REVIEWER: DATE: TEL # P - lo8tL3 D. Fravrt 3/aa/94- PROJECT ENGINEER (Road & Drainage Plans) Gi nn rey: n rc TEL # 926 - 13;2a TEL # GENERAL ITEMS 1. The $100.00 fee for plat review has been paid to Spokane County for this submittal 2. An agreement to pay fees has been submitted to Development Engineering Services 3. The fee agreement has been signed by the project owner or a principal of the developer's firm. If signed by an agent of the owner, written authorization from the owner is attached to the fee agreement 4. Review fee account is current (no invoices over 30 days outstanding) 5. I have noted the plans in, plans out dates on the pink sheet in the file 6. If the project is a mobile home park, were the plans reviewed by Planning? 7. 2 copies of the plans were submitted 8. 2 copies of the calculations were submitted 9. The plans are on 24" x 36" sheets 7es NO ki /4 GENERAL ITEMS (cont'd) X x 23. Is the entire project is located outside of an ckliotv3.0 /Aug93 10. The calculations are bound together 11 The plans and calculations are stamped and signed by a Professional Engineer 12. The developer has signed and approved the road and drainage plans 13. Are there any conflicts between the proposed drainfields and any drainage ditches on the plat 14. Bowstring calculations by developer are in the file for this review. 15. Vertical curve stopping sight distance calculations by developer are in file for this review 16. Horizontal & vertical alignment sight distance calculations by developer are in file for this review 17 The engineer /developer has provided evidence of coordination with the electric utility servicing the project 18a. The file contains a Spokane County Section Map 18b. The file contains a Spokane County Assessors's Map 18c. The file contains an aerial photo of the proposed project area 1Sd. The file contains a corrected preliminary of the final plat map 19. The project is located in urban boundary area 20. The project is located in the Aquifer Sensitive Area 21. The project plan name matches the plat name 22. Is the entire project located outside of an identified Flood Plain Area? identified Stormwater Management Problem Area? 2 GENERAL ITEMS (cont'd) cklintv3.0 /Aug93 24. List any design deviation requests and their status: 25. Locate the Findings and Order for the project and list any unusual conditions: a PfGItsicn or nrvut)frk �C3 Area.,,,% (/�fi $ £P( ,7'&d'a— V o 1A �I I l) Seat' // I1 �1 / �-oi u9 PO '124— Seaai� rn .._ "'M ;Ito V- * — b( ' �,1f�Tip 'A,n ap i / moat 23. Backcheck of previous comments completed 24. All previous comments adequately addressed 3 Ye-5 No on c» S4I - ?4— " " 66-o- v ckliatv3.0 /Aug9] I A- ROAD PLANS 1. List any roads that must be designed and constructed on the project. ROAD REQ'D WIDTH DESIGN MIN. /MAX. STOPPING SIGHT MIN. CURVE NAME CLASS. PAVED R/W TERRAIN SPEED GRADE DISTANCE HORIZ. VERT. /n.4'rc L vcaQ frtrw A «a "a 36/50 rl 0-'1- 30 0 /8a on 4 2. Planning conditions require submission of a landscape plan. (NOTE: Usually associated with PUD's) 3. I have checked the landscape plan against the road and storm drainage design and there are the following conflicts: 4. The following road plans have a bearing on the design of roads for this project and a copy is in the file: R- f�f� slug,. - "Ts Atldl 5. I have sent an "R" value and percolation test request to the Construction Section with soils information and a layout of the project. "R" value test request to Designer (date). 5 s its No Ie ROAD PLANS (cont'd) ckliotv3.0 /Aug93 7. Are stationing equations shown? 1 Are proposed utilities shown on the plans (or an information copy of the utility plans submitted)? Does the note "Any conflicting utilities shall be relocated prior to construction of roads or 'IJn drainage facilities." appear on the plans? 1v / 12. STREET WIDENING 12a. Are curb design sheets provided for widening of existing streets? 12b. Does the curb design conform to Spokane County Standards of section cross slope (Between 2• and 4.5°%)? 6. Is the bench mark shown on the plans? 8. Is stationing correct (south to north, west to east, reading left to right on the plan)? Are existing utilities shown on the plans (or an information copy of the utility plans submitted)? 12c. Is there a street cross section shown for widening existing streets? 12d. Does the proposed new width match the width required in the Findings and Order? 12e. The cross - section shows: existing R/W proposed R/W future setaside 12f. 100' (min.) pavement taper into project is shown (1) There is adequate R/W for the taper to extend from the new paving width to existing pavement. (2) There is inadequate R/W for the taper to extend from the new paving width to existing pavement; taper extends from existing paving to R /W. 12g. Length of pavement taper out of project meets: WS' _ 60 for design speeds s 40 mph WS for design speeds > 45 mph ft. min. taper length approved by County Traffic Engineer 12h. Transition from end of curb to existing paving is shown (curb should nose down in 12 ") 6 Y �) ROAD PL Y 5? akl lutv3.0 /Aug93 (tofu' d) 12i, 12j. 12k. A 4" -wide, white painted fogline at 12" from the edge of paving is indicated (tapers or tangents) Are the curb grades above the county minimum of 0.81? If curb grades are below 0.81, has a special note been added which requires a licensed land surveyor to verify that the curb forms are at the correct plan grade prior to construction? 13. NEW STREETS 13a. Does the proposed alignment meet Spokane County Standards? vertical slopes vertical curve length horizontal curve radius intersection separation 150' on local access 300' on arterials 13b. The plans show the typical cross section for streets 13c. Does the proposed street width match and Order? 13d. The cross - section shows: existing R/W proposed R/W future setaside the Findings 13e. Does the typical section on the plans meet Spokane County Road Standards? cross slope is shown cross slope is within standards cross slope is correct when checked on profile 13f. Curb type: shown proper type for the road classification meets Spokane County Road Standards for curbs within the public right -of -way consistent with the curb type in the general area X 13g. Are the curb grades above the county minimum of 0.81? 7 '4s No MJ ROAD PLANS (cont'd) 13h. If curb grades are below 0.80, has a special note been added which requires a licensed land surveyor to verify that the curb forms are at the correct plan grade prior to construction? ckliotv3.0/Aug93 Has an "R" value test been performed for each soil group? The pavement section is adequate for the R -value and Traffic Index for the road type 15. Locations where water is intended to flow through an inlet or curb cut are at the low point in vertical curve NI 16. SIGNAGE PLAN /P C 16a. Stop signs are shown for all streets which intersect an arterial (Check with County Traffic Engineer if there is a question) 16b. Street name signs are shown at all intersecting streets 16c. Is there a need for barriers at the end of dead end streets? 16d. Is there a need for other special signing? (Check with the County - Traffic Engineer) 17. Has the Fire District approved all proposed private road turnarounds that are substandard according to our Spokane County Road Standards? 18. CURB RETURNS 18a. Are BCR, MCR, and ECR stations /elevations on curb returns shown on the plan? in the profile? 18b. Are the curb return elevations correct? 18c. Is there positive drainage from the road intersection to the MCR? 18d. Curb return radius meets County Standard minimum of 20' (to back of curb for rolled /wedge curbs, to face for vertical curb face types) 18e. BCR, MCR, and ECR elevations are set to allow drainage from the centerline to the curbline 8 ROAD - PLANS (cont d) ckli0cv3.0 /Aug93 j 18f. BCR, MCR, and ECR elevations at intersections without stop sign control are set so that the superelevation between the intersection and the curbline does not exceed: (ref. AASHTO) 10% (flat terrain) 8% (rolling terrain) 6% (mountainous terrain) 19. CUL - DE - SACS /PC 19a. The cul -de -sac grades (top of curb) meet county cul -de -sac standards (1% min.) 19b. The cul -de -sac curb is shown in profile 20a. Do the intersections meet the 2% grade �1 requirements? _\ 20b. Wheelchair ramps are provided at intersections with sidewalks 18f. BCR, MCR, and ECR elevations are set so that the superelevation between the intersection and the curbline is banked properly for right -hand turns into and out of the intersection roads (the road slopes from the intersection down to the flowline) 20. INTERSECTIONS 20c. If there is a change of direction at the wheelchair ramps, are the ramps oriented so that: a 5'x5' pad is provided at the top of the ramp? the required 5'x5' landing zone at the bottom of the ramp is located inside of a line drawn 1' inside a line extended between the curb faces of the adjoining street at intersections? any drainage structures are located outside of the landing zone? 20d. The intersection horizontal sight distance analysis shows that sight triangle encroachment on private property is 2' or less 21. Is there a need for slope easements? 22. Is there a need for erosion protection? 9 ROAD PLANS (cont'd) ckliutv3.0 /AUg93 23. DRIVEWAYS 23a. Can a driveway slope of 8% or less be maintained between the edge of pavement and the right -of- way? 23b. Can a driveway slope of 12% or less be maintained between the right -of -way and the building setback line? 10 ckli0tv3.0 /Aug93 DRAINAGE PLANS 1. Has a plat map been submitted which shows lot dimensions, street widths, etc.? 2. Was a map with contours spot elevations submitted to properly determine drainage basins? 3. Were all existing drainage courses shown? 4. Were all the proposed drainage courses shown? 5. Were Hydrologic calculations submitted for each basin? (Bowstring if area s 10 acres, SCS TR -55 if area > 10 acres) Offsite (50 -yr storm if undeveloped, 10 -yr storm if developed) Onsite (10 -yr storm) Q for entire area Q for roads only INFILTRATION POND Actual pond volume provided DETENTION POND Release to pipe system: contain 50 -yr developed release at 50 -yr pre - developed secondary overflow to pipe in control structure for 100 -yr developed emergency overflow weir for 100 -yr developed sump prior to outlet to control structure 1' min. freeboard grassed sides /floor for publicly- maintained ponds sprinkler system for publicly- maintained ponds Retained on site, no drywell: contain 100 -yr developed emergency overflow for 100 -yr developed 208 SWALES 208 swale floor area, volume requirements 208 swale floor area provided 208 swale volume provided 11 DRAINAGE PLANS (cont'd) UNDERGROUND GRAVEL GALLERIES 1. .3 void ratio for gravel free space volume is used 2. Perc rate from field test is used to develop outflow rate cklintv3.0/Aug93 3. 10 -yr event volume is contained entirely underground 4. 100 -yr event volume is contained by a combination of underground storage and above ground storage up to 8" depth 5. 100 -yr event volume is contained by a combination of underground storage and above ground storage exceeding 8" depth 5a. Soil mixture is specified for water depth in pond exceeding 8" 6. Entire gallery is wrapped in filter fabric CONVEYANCE Conveyance - pipes ditches gutter flow depth is less than gutter height Backwater - pipes, ditches Headwater - culverts Curb drop /curb inlets on grade (fig 16), sump (fig 17) Grates - sump (fig 15), continuous grade (fig 16) Riprap - stone gradation, pad dimensions 7. Soils type is "pre- approved" (Garrison, etc.,) for drywells without percolation tests 8 Does the drainage report identify the SCS soil groups for the project area and for the proposed roads to be built in the project area? 9. The drainage design maintains sheet flow patterns in natural watercourses 10. The drainage design maintains existing sheet flow patterns without concentrating flows 12 DRAINAGE PLANS (cont'd) cklietv3.0 /Aug93 11. Does the entire plat lie outside of designated 100 -year Flood Plain Area? 12. Does the entire plat lie outside of Zone "B" of the designated Flood Plain Area? 13. Is the max. street ponding in any part of a Zone "B" less than 1'? 14. Does the plat contain appropriate language limiting the lowermost opening in a structure located in a Zone "B" to not less than 1' above the lowest road elevation? 15. The drainage concept is compatible with planning commission requirements. 16. The difference between present and future flows is retained on the site. INLETS 1. The inlets shown are within the stream flow. 2. Inlets are shown on the low side of a road or at the low point of a vertical curve 3. Curb type inlets are shown at sags and are properly sized. Perimeter does not include the side of the grate against the curb face (all grate types). Perimeter is divided by 2 for calculations where no curb opening (Type 1) is provided. Area = clear area + 2 for Type 1 grates) 4. There are no long curves with flat grades which pose a problem. 5. The centerline road stations, offsets, and invert elevations for all inlets are shown on: plans profile. 6. Grate type is shown on the plan and is acceptable. (Spokane County Standard inlets in county ROW, on private property other inlet type may be specified) (Type 1: D -2; Type 2: D -4) 7. A detail drawing of the grate /curb installation is shown on the plans and includes the 2" depression and transitions as per county standards for grates that are located within county ROW, or referenced to SCRS std. detail D -8 13 DRAINAGE PLANS (cont'd) ckliatv3.0 /Aug93 8. A curb cut detail is shown on the plans with the new county back drop with transitions and a 2" depression for curb cuts inside county ROW, or referenced to SCRS std. detail B -15 9. The plans shows acceptable curb cut details and grate details for installations which lie within private road easements. 10. If inlets are in a gravel road or a dirt ditch a 6' x 6' A.C. apron is shown around the inlet. 11. Catch basin or special manhole details are shown or a standard drawing is specified. 12. Critical low points in the drainage system have been provided with overflow easements. 208 SWALE SYSTEMS 1. Is the swale located outside a future set aside area? See Findings and Order for where setasides are required. 2. The swale bottom and sides have sod or grass turf specified. - 3. Swale side slopes do not exceed a 3:1 side slope. (A 2:1 side slope is allowed if swale depth is less than 12" deep. Should only be allowed where constrained by obstacles) 4. If depth of water from bottom to drywell rim is between 6 and 8 inches, soil mixture has been specified which meets Spokane County Guidelines. 5. Drywell is: located within 8 feet of the curb line, or a maintenance access route and easement are provided 6. Drywell stationing is staggered from the inlet by at least 4' 7. Multiple drywells are located more than 30' (center- center) apart 14 DRAINAGE PLANS (cont'd) ckliatv3.0 /Aug93 8. Soil type is appropriate for drywells (perc rate 72 " /hr) if not: 8a. overflow from a swale at a low point will be directed away from building pads by an identified easement over improved ground an existing natural drainage channel covered by an easement 9. Drywell location does not conflict with underground utilities. 10. Drywell type is specified. 11. Drywell grate type is specified (Type 3 -std. detail D -7) 12. Drywell grate elevation is: below the invert at the curb inlet between 6" and 8" above the swale floor elevation 13. Does the note: "Wrap the drywell with a filter fabric (Amoco 4545 or equivalent)" appear on the plans? 14. Swale floor elevat specified between 6" and elevation at least 6" below the curb inlet for at least 8" below the curb inlet for 15 ion is: 8" below the drywell grate the normal gutter flowline at swale without a drywell the normal gutter flowline at swale with a drywell 15. Swale floor dimensions are shown minimum area is shown the area matches the required area from the 208 calculation for impervious areas. 16. Easements for the 208: are shown on the drainage plans are shown on the subdivision plat are of adequate size to contain at least 6" freeboard above the max. water surface elevation for the design storm are tied to the lot corners. 17. The side of the swale that is the furthest distance from the street should have a top of swale elevation that is higher than the highest water level of the swale. DRAINAGE PLANS (cont'd) cklietv3.0 /Aug93 18. The invert at the curb inlet is at or above the max. water surface elevation for the design storm 19. Filter fabric is specified drywell is specified envelope .installation specification is adequate. 20. Irrigation plan for County- maintained 208 swales Lot plans submitted on nJ.r r,:.'•': 1 ,'_b AJ 208 LOT PLANS • 1. Lot plans are required; submitted on 2. The 208 lot plans show: the lot number, block number, subdivision name, date drawn, scale, and north arrow. dimensions to lot corners drainage easements setback requirements swale floor elevation swale floor dimensions rim elevation if drywells are present curb cut station, offset, invert and length any drainage ditches shows depth from the top of the curb an attached cross section of the swale or ditch 3. Lot plans have been stamped by a professional engineer on all pages 4. Lot plans are of sufficient scale to maximize the lot size to the 8 1/2" x 11" paper size. (Drawings may be on plain white paper) 5. 208 lot plans were approved on CULVERTS AND PIPE SYSTEMS 16 for the gravel envelope around the between the drywell and the gravel 1. The road culverts are at the low points of stream flow. 2. The headwater was calculated for culvert entrances and is under 2 diameters for culverts under 18" in diameter and 1.5 diameters for culverts greater than 18 ". 3. There is a minimum of 12" of cover for all culverts and storm sewer pipes DRAINAGE PLANS (cont'd) ckliatv3.0 /Aug93 4. The designer has provided a letter from the pipe manufacturer certifying that the intended pipe is suitable for cover less than 3' (PVC), 2' (CMP, RCP), 1' (HDPE /ADS) or the engineer has provided trench details for upgraded pipe bedding for these areas 5. The minimum velocity within the pipe system is 4 feet per second at design flow in a backwater condition. (Note: The County Engineer may permit lower velocities) 6. The backwater calculations show a minimum freeboard of 0.75 feet for each catch basin or manhole. 7. The minimum culvert and pipe slope is 0.5°% and all pipes meet or exceed this standard. 8. All angle points in the storm sewer system have suitable access such as a manhole for cleaning. 9. At locations where two different pipe sizes enter the same manhole the 0.8 diameter points of each pipe are at the same elevation. (Note: Exception allowed for drop manholes) 10. Is there any downsizing of pipes in a systems of pipes that are 18" in diameter and smaller. 11. There is a downsizing of pipes in the amount of 3" for a minimum of 100 feet in a pipe system that contains pipes that over 18" in diameter. 12. All pipes in the pipe system are 12" and larger as per Spokane County Standards; (10" pipe that is allowed for connection of inlets to catch basins or drywells, if the length does not exceed 44 LF and the velocity is at least 4 fps). 13. All storm sewer pipes are located a minimum of 5 feet from a rear or side property line and have adequate easements for maintenance. 14. Inlets on the same slope are located so that the maximum width of spread for the gutter flow does not exceed 6' (from curb face for Type "A" or "B ", from back of curb for Type "R ") 15. The plans and profiles show all culvert pipe types, stations, offsets, lengths, and inverts 17 DRAINAGE PLANS (cont'd) cklintv1.0 /iug93 16. Pipe materials meet county standards for systems that lie within county ROW. (Note: The type of pipe in private systems may be as specified by the design engineer) 17. The culverts shown are properly stationed from centerline stationing. 18. Does the drainage system configuration avoid conflicts with underground utilities? 19. Is there a need for energy dissipation on any of the culvert outlets shown on the plans? 20. Is there a need for rip rap around the culvert outlet at any of the culverts as proposed on the drainage plans. 21. The rip rap that is shown for the drainage plans is adequate tot the culverts where erosion is a concern and the engineer has submitted acceptable rip rap design calculations. 22. Pipe anchors are shown for pipe grades greater than 15%. 23. There are no instances where water is trapped against a fill with no culvert shown. 24. Profiles and cross sections are shown on the plans for all proposed channels and ditches. 25. Ditches with eroding velocities have a proper lining for erosion protection. 26. Water will properly flow from an existing or proposed ditch on to the pavement as proposed on the drainage plans. 27. Where the ditch profile passes from cut to fill the flow has been properly disposed of. 18 ckliotv0.0 /Aug93 EASEMENTS 1. Adequate drainage easements are shown for maintenance of drainage ditches or pipe systems. 2. There are easements proposed or existing for natural channels which cross the property. 3. An easement was provided where street drainage was diverted onto private property. 4. The perpetual maintenance of private systems has properly been provided for. 5. The maintenance of drainage systems within Spokane County ROW has been properly provided for. 6. Appropriate drainage language has been provided by the reviewing engineer to the surveyor and /or engineer who is involved with the platting work. 7. Pre - existing drainage easements on this parcel are not affected by this plat 8. Overflow easements are provided from swales /ponds located in low points MISCELLANEOUS 1 QC check of review completed 2. Bond quantities for drainage item calculated (date) (init.) 3 Vertical curve sight distance worksheets done (date) (init.) 4 Vertical curve geometry worksheets done (date) (init.) 5 Drainage volume worksheets done (date) (init.) (date) (init.) 6 Stamped road mylars to Permit Tech. (Sylvia /Suzanne) 7 Stamped lot plans to Admin. Asst. (Sandy) 19 SPOKmICNTY ENGINEER'S OFFICE • ORGI PROJECT * r - SUBMITTAL * 1 RETURN TO COUNTY ENGINEER STORMWATER DRAINAGE REPORT for Ridgemont Estates North - 3rd Addition A 23 -Lot subdivision located in the NW 1/4 of Section 25, T.25 N., R.44 E.W.M. Voradale, Washington 99037 for Tupper and Associates, Inc. December 16, 1993 Report Prepared By: OFFICIAL PUBLIC Cacti' 41 Simpson Engineers, Inc. North 909 Argonne Road Spokane, WA 99212 * * * TABLE OF CONTENTS * * * Part 1: On -Site Drainage Analysis Part 11: Offsite Drainage Analysis Supplementary Maps: 1. Street Plan - Profile, Reitz Drive 2. Drainage Map, Ridgemont Estates North - 3rd Addition 3. Offsite Drainage Map, Ridgemont Estates North RECEIVED JAN 1 4 1994 SPOKANE COUNTY ENGINEER REVIEW COMMENTS 29 March 1994 REVIEW# 1 PROJECT # P -1684C r < < � PROJECT NAME Ridgemont Estates North, 4tti Add. Page 3 of 6 graded so a truck can drive on it. Provide a grading plan for the 15' wide maintenance drive. The plan is to show existing contours, final contours or final grade elevations, drive slope(s), and width. Drainage Calculations - Pond '3A': D1) The data for the subbasins labeled RENZ -A through RENZ -H was, according to the calculations, obtained from a report prepared in 1975. Since then, there has been much construction and grading work done in this area. Often the originally assumed drainage basin limits change over time, especially in newly developed areas. The basin limits, roughly indicated in the submittal for this plat, likely have changed since the work was done in 1975. For example, Vera Crest Drive, in the area 500' north of the intersection of Vera Crest Dr. & 22nd Ave, directs runoff from a large subbasin to the north, into Subbasin RENZ -D. The drainage basin map does not reflect this fact. Likewise, the basin map shows 22nd Ave ending in a cul -de -sac. This now connects into Conklin Road, running north- south. The west side of Conkline Road contributes runoff into 22nd Ave. Again, this is not reflected in the basin map. Therefore, a new basin analysis needs to be performed. Field verify the basin limits and clearly show the basin limits in a drainage map. Revise the calculations to reflect the actual acreage of the basins. D2) Show in the basin map the time of concentration routes, Tc, used in the calculations. D3) Summary Table 1: Subbasin 3E lists an asphalt street area of 10,947 s.f. However, the road plans provide an area of: Road Area = [(STA 12 +80) - (STA 9 +48)](36') = 11,952 s.f. Address discrepancy. D4) Level pool routing of the inflow hydrograph through Pond '3A" is required. The inflow hydrograph is generated from a 50 -yr and 100 - yr storms, for the entire basin into the pond (on- and off - site), and the outflow rate is the combined capacity of drywells. The level pool routing calculations need to show the inflow and outflow hydrographs, and the maximum water level achieved in the pond. The pond will need a 1.0' minimum freeboard for the 50 -yr storm, and not overtop the dike during the 100 -yr storm. The calculations need to demonstrate that the pond will completely drain within 72 hours. REVIEW COMMENTS Page 4 of 6 29 March 1994 REVIEW # 1 PROJECT # P -1684C " d PROJECT NAME Ridaemont Estates North. 4kli Add. The total volume required for pond '3A' needs to be calculated considering the entire basin directing runoff to it, resulting from a 50 -yr storm, using a hydrograph model. It is preferred to compute a single hydrograph for the entire basin (which encompasses all of the subbasins), and then route this hydrograph through the pond using the level -pool routing technique. However, separate hydrographs can be computed for the subbasins, but then hydrograph addition and Att -Kin routing computations (or similar technique) will need to be prepared to determine the lag from hydrograph to hydrograph. This latter option would be much more complicated and isn't necessary. It is recommended that once you have prepared a basin analysis schematic, you coordinate with us before the full analysis is performed. D5) The rational method can be used to determine channel conveyance capacity requirements, or inlet requirements, but it cannot be used for determining pond volume requirements, with a basin to a pond which is greater than 10 acres. D6) The drainage map (Sheet 2/2) shows the southeasterly limits of Basin 3B traversing the middle of lots 6 -11 of Ridgemond Estates, adjacent and west of Vera Crest Dr. The drainage plan shows surface drainage dividing along this basin line. Upon performing a field investigation, it has been found that the drainage limits are not at the location shown in the map, but rather extend up to Vera Crest Drive. This will change the parameters of Basin 3B and RENZ -D. Revise to reflect actual conditions. Drainage Ca.l - 5 to 6 acre Pond East of Plat Note: The pond was originally defined in the Plat of Ridgemont Estates No. 2 (Spokane County No. P1059), in plans dated 12/77 with updates to 2/78. within a drainage easement dedicated to Spokane County (Easement #7512120289). The existing easement encompasses approximately 8.86 acres. This pond serves as a regional retention pond. The contributing basin area approximately encompasses the NE 1/4, and the north half of the SE 1/4 of Section 25, Township 25 N., Range 44 E., W.M. D7) The entire basin which flows into this pond needs to be analyzed for the 100 -yr, 24 hr storm event, using the SCS hydrograph method. The basin can be divided into smaller subbasins, which is often needed to facilitate the analysis, but then runoff from the subbasins need to be added together by hydrograph addition and channel routing where applicable. The inflow hydrograph into the pond shall be analyzed by level -pool routing; with the pond outflow rate equal to the capacity of the drywells in the ponds, plus the infiltration rate of the soil within the pond bottom. The level - pool routing calculations are to calculate the maximum water elevation achieved during the 100 -yr storm event. Also see #D12. Part 1 ON -SITE DRAINAGE ANALYSIS far Ridgemont Estates North - 3rd Addition An analysis of stormwater flowing to "Drainage Pond 3A" * * * * * * * * * **" * TABLE OF CONTENTS 1 Rational Method Peak Discharges 2 Hydrographs for Maximum Storage 3 Maximum Storage Volume Calculation Supplement. "208" Individual Lot Plans * * * * * * * * * * * * * ** Project Overview I" - 20(Y Map of Basins Draining to Pond 3A Summary Table 1 Drainage Basins Within This Plat Summary Table: 2 Basin Flowing Into Plat from North Summary Table 3. Basins Flowing Into Plat from South (Renz -N) Summary Table 4 Basins Flowing into Plat. from South (Rene -S) Drainage Pond 3A Volume Calculations Hydrograplis For Maximum Storage in Pond 3A Existing Ponds - Off-Site Capacities of Curb ripening Inlets Vertical Curve Stopping Sight Distance Data S C.S Soils Map and Descriptions Flow Analyses. I Existing Ditch from South of Plat ( -- Ronnc-S basins) 2 Existing/Proposed Ditch to Culvert (above + Renz -N + 3D) 3 Culvert under Renz Drive, Sta. 5155 (above + 3B - 3C) 4 Ditch from Culvert to Pond 3A (above f 3A) 5 Ditch from Radco Drive (Basin 4C) Individual Baser Data. TO: • 6 impson Engineers, Inc. CIVIL ENGINEERS AND LAND SURVEYORS N. 909 Argonne Road • Spokane, WA 99212 (509) 926 -1322 • Fax: 926 -1323 IL-4. 1 {�7vMr 3 ' D. SPor,to-]E Caul -.1 ENG iv) I R. SUBJECT: gi tout Es - r E s — 3 R`D ADnlnoo DATE: AM-KCH 4-, 194- STREETInt,AWA G E Ai * 4 ,D A THE DRWItJAGE Pc_At -.s STREET PL.AiJ— P �: A.r 1 n 3 S k F - FTS of CAvWLA•?eh1S FEVtsE) Tb £EFLEt -1 Y o v� MAL u FK$AL_ CAim4E7 -ITS MA-3 RYE H C - r t d U ef4rEf? ArJ P -P JS ttl, E Pt D .A t t S ND ti.1 ItJ rr"S 0 w -3 C_eT_ CALLED TiLhy (_AT g _ {,� /HIGH wa f_ MAt 1 St PE SC - 0PE; Ankh t,JtuJ T Fg - vite , . fHE C JER-T /U 0 uJ E1C ?17 5 FRt M f JZ DL�vE in 114E_7 Pnr.lD Ft..0 4Q 1 E It I ,$ E''R.-1 THE r•.A«..ujtJ n ot..\ St-4 E cT$ brio - n-is DRAT ►1 PIG E LEPnKT Ta Su,eizS&&E Tiff co eat PatJDi sJ G k..EPe+ T P Fkt M A0 0 Mail G1NtL •fyfi4* fit Yo U • Signedv C C`4t4rs'E15oij DRAINAGE POND 3A VOLUME CALCULATIONS A large detention pond, referred to as Drainage Pond 3A, will be constructed on the northern portion of Block 1 of Ridgeneont Estates North - 3rd Addition, north of Lots 5 through 10, within a separate parcel referred to as "Utility Lot B ". This pond shall receive stormwater runoff from die land area described as Basins 3A through 3D, Basin 4C, and Renz-A through Renz -H. Duo to the large inflow and subsequent large storage volume required, this ponding area is designed with 3' to 4' of total available depth. To store the calculated 30,000 cubic foot volume with 6 c.f.s. outflow, the maxihuun storage depth is about 25" above the level floor of the pond. Drainage Pond 3A is designed with 3:1 (H:V) slopes for min. 36" depth on all sides. For this drainage pond with 3:1 side slopes, the pond volume at any depth can be calculatcxl from the area and perimeter of the pond floor, with two components: the volume directly above the floor area plus the volume above the 3:1 side slopes. Volume is calculated at 0.5 fl. depth for "208" treatment and at 2.1 ft. depth for storage, as follows: At 0.5 ft. death: Pond Volume = (0.5 ft. depth x pond floor Area) + (1/2 x 0.5 x 1.5 x floor Perimeter @ 3:1) = 0.5 A + 0.375 P3 :1 At 2. I ft. deoth: Pond Volume= (2.1 ft. depth x pond floor Area) + (1/2 x 2.1 x 6.3 x floor Perimeter G 3:1) = 2.1A+6.6P3 1.5 fee 6" = 0.5 ft. Pond Floor 2.1 ft. 6.3 feu --PI / V DRAINAGE POND 3A: Pond Floor Area, A = 12,700 sq. fl" (planirneter measurement:; see sketch below) Pond Floor Perimeter, P = 640 LF Total Volume at 6" depth = 0.5 A + 0.375 P3 :1 =0.5 ( 12,700 ) + 0.375 (640) = 6,350 + 240 6.590 cu. ft. The total "208" volume required for Basins 3A + 3B + 3C + 3D + 4C (from Summary Tables) = 515 .t. 299 + 216 + 0 h 263 = 1,293 cubic feet. Therefore, Drainage Pond 3A is more than adequate for "208" treatment of N:tonuwatcr runoff from these five basins, with the drywell grates set 6" above the pond floor. Note: "208" treatment is not required for runoff from the existing developed land in Basins ftenz-A through Renz-H. Volume at 2.1' depth = 2.1 A + 6.6 P3:1 = 2.1 ( 12,700)+6.6 (640) = 26,670 + 4,224 = 30.894 cu. ft. Tile total maximum volume to store with 6.0 c.f s. outflow is 30,000 cubic fiat (sec following section). Therefore, Drainage Pond 3A can handle the calculated volume at a death of 2.1'. NOTE: At a pending depth of 36 ", which is the minimum construction depth of the pond as shown on the "208°' Pond Section Detail, the pond volume is about 46,740 cubic fact, which is about 1.5 times the calculated maximum storage volume required. Given Input Data: Diameter Slope Manning's n Discharge Computed Results: Full Flow Capacity Full Flow Depth Velocity Flow Area Critical Depth Critical Slope Percent Full Full Capacity QMAX @.94D Froude Number Open Channel - Uniform flow Circular Channel Analysis & Design Solved with Manning's Equation Worksheet Name: Ridgemont North 3rd Comment: Culvert from Renz Drive to Drainage Pond 3A Solve For Full Flow Capacity 2.25 ft yZ FT. r.OP 0.0100 ft /ft a 0.012 ,� ?2.7 c 33.55 cfs -- c ^L-`.,`.'''' PETS- F L4: 33.55 cfs 2.25 ft 8.44 fps 3.98 sf 1.98 ft 0.0090 ft /ft 100.00 % 33.55 cfs 36.09 cfs FULL Open Channel Flow Module, Version 3.21 (c) 1990 Haestad Methods, Inc. * 37 Brookside Rd * Waterbury, Ct 06708 OVERVIEW This stormwater drainage report examines runoff flowing onto, across and off from the land area in and around Ridgemont Estates North - 3rd Addition. This report is divided into two parts: Part I ( "On- Site ") deals with stormwater draining to the 1/4-acre ponding area located along the north boundary of this plat , while Part II ("Offsite") considers stormwater runoff to the 5 -acre low area located immediately to the east of this plat . Both ponding areas take stormwater from both within and outside of the plat, but while most of the plat's runoff stays within the plat and flows to the smaller, on -site pond ( "Drainage Pond 3A "), the 5 -acre ponding area takes mostly water from offsite. The "on -site" low area, called "Drainage Pond 3A" on the attached maps and calculations, receives stormwater runoff from 13 individual drainage basins. Four of those basins are located wholly (or at least substantially) within the 3rd Addition boundaries, and are referred to as Basin 3A, Basin 3B, Basin 3C and Basin 3D. A fifth on -site basin, 3E, drains to the 5 -acre off -site drainage ponding area, and is detailed in Part U of this report. One basin within the boundaries of proposed Ridgemont Estates North - 4th Addition, called Basin 4C, also drains to Drainage Pond 3A. The remaining eight basins contributing runoff to this pond are all located in the developed area to the south of 3rd Addition. Now known as " Ridgemont Estates ", this area was originally named "Renz Subdivision ", and so, to reduce confusion from overuse of the " Ridgemont" name, the drainage basins in that area are referred to as Renz -A, Renz -B, Renz -C, Renz -D, Renz-E, Renz -F, Renz -G and Renz -H. These offsite basins flow onto the 3rd Addition via existing ditches. The old catch basin and drywell in Ridgemont Estates North - 5th Addition (just southwest of 3rd Addition) will be abandoned, and the existing ditch crossing from 5th Addition to 3rd Addition will be extended to carry runoff from the eight "Renz-" basins to Drainage Pond 3A via a culvert under Renz Drive. The Summary Tables and Individual Basin Data for Part 1 of this report present information in the following order: I. On -Site Drainage Basins, i.e. Basins 3A through 3D 2. 4th Addition On -Site Basin 4C, which flows to Drainage Pond 3A from the north 3. Offsite basins, Renz -A through H, which flow into Drainage Pond 3A from the south The Renz basins are further subdivided based on their approach path to the existing catch basin in 5th Addition (just upstream from the southerly tip of 3rd Addition). The five Renz basins approaching the catch basin from the east are collectively called "Renz-N", while the three basins flowing via the existing ditch from the south are called "Renz-S". ti J7[I5T7 ss, rjR r° Be• 14 8Rt- .lOnrdEL� ` - 1 • :1 1f l ; • ELi tit ESt.tti3 J■.0 + ;-, JeLl utt 4 1 `< . t 1/ / • /'yv6 '1J `' ~ .,` ♦ ' 1 '� • r / 21V$ i / 7 . . 7 .,..' N :: . '.. r. / i / / y 1 ff • a J .l k R1DGEJ ESTATES 14 ottT}i- 5TH AriDI TIO? I EXISYIr t G 1,1 11 ox.1 G1 l'1'' ftI D C3EM r-4 r lea sirs C r: z.teP - " Su13CIVISlore) • fr e} / r1 f L y f / . e k N }i k r A \ N. + A51 "Q Fi ' SE= oFFSt •1� Okttrtrl66 AMP 't - R ' b6E°rl r r t= r'T: I..I a 1�fF1 ti \ �r�t , r i` �. . ti' ti � ! RR In r/ r '4 i-... .r / \\ / t t f � \ // r- ' 1 I; t • \ R • t''l t 2 ▪ ' R Y 1 / \ 7 3p ▪ .. / ti` \ ' r, 1 ----r— \ -..,L. / /, 13 N. . 1 1 1 1 t // '� /` \ ` 1 / l ∎ / \ t 21 0 / ! �� r R 1 1 IJte,s:N•acNZr / t 14 7 1 I`? y � ... ! 4 t ' e .'• - �"i` y 2� /y / / � Si R ` , . 1 ,, ,,, ,$ ▪ ). , y y t i I 1 1 j r J S. i I t S . i r' 4 t 13 1 1 II •r / . •J �_ y / R \ r r r { R J 1 J I 1 / � r rJ " to ▪ � / � / 16 � � r i � I 1 -,�� ,c am r / r 111 ! / / I -- - -'" 1` '�., \ 11 ` di rt - - - - - � i r � / .� r,_ \ y t i �' I 1 1 2 1 J 1 � 14 r f? /l l .., 1'� - - '� ▪ ? j� Yi ti , <�ldf� EN �- 13 1 r j t` _. -- I J I4. J� f . / I 1 8 � 1 . ` L � - 1 '-1 / ' y , I 1 I I 1 1 1 h., I /� ° —� I 1 1 " 1 1 / 1 / — t _ I h e5 1 1 J I /— T. 1 1 1 t J 1 S / � I t 2cN I ` E 9 1 , I I / \ r -.. I L r J J I 1 / / / 1 i � 1 1 I j - F I I I / r I —I— 1 1 J ,y' t 1 t I 7¢ 1 � Jf R z -A Basis Name: Total Area Pervious Impervious Area 0 D'ways= Arca N Houses -Area Asphalt Streets "208" Vo lunu Peak Om Time to peak Qp Storage Volume Pond Name & Location NOTES: SUMMARY TABLE 1: DRAINAGE BASINS WITHIN PLAT These live basins are located wh 3A 405.600 v 69,257 36,343 ✓8= 8.000 v8= 16.000 142,343 ✓515 • 3.15 3 L -1 to 10, B -I 3B /101,760 ✓ 79,599 ,/22,161 5= 5.000 5= 10.000 "7,161 v 299 2.25 5 0.35 2 �. 3A 1-5 to 10, 13-1 or at least substantially within the plat. 574 loZ�$�� i 5- 1• yt 4 36 = /I 95a 3C V121.210 ✓105,027 • v'16,183 '3 =3.000 •"' 4= 8.000 �'S,183 ✓216 1.51 ( 11) tri3 y,11,15 3A L -5 to 10. 11 -1 3ll , 3E Units /57,580 ✓70,.150 sail. ✓57,580 (42 se.n- U C2 sq.fl. U 5- 5,000 sQ.11. 0 ✓5= 10.000 Sa_n_ 0 10,047)"' U cu.A. 0.63 1.97 cfs 3 1 (.41 min. 0.10 1 0.33 cfs I cult. 3A Large Esm't_ L-5 to 10, B-1 Off-site to E. ra I Ate ,,,. ' The extreme west end of this plat flows westward into Ridgemont Estates North - 2nd Addition; the north half of Renz Drive drains to "existing" Pond 5, ai►d the south (half drains to "existing" Pond 6, both in the 2nd Addition. See "Existing Ponds - OfIsite" in this report, and the Drainage Report, street plan - profiles, and drainage plan map for Ridgeuhont Estates North - 2nd Addition. Driveways are assunhed to be 1,000 sq. ft. of concrete per each lot, and houses are assunied to cover 2,000 sq. ft. per each lot. Peak Qt0 values are used in determining the capacities of the ditches and culverts. Qp is the calculated peak for maximum storage. This value, sustained for the 100 minute duration of the storm hydrograph, yields the storage volume (assuming no outflow). The Qp figures are used in the composite hydrographs to determine the storage volume requirements in the detention pond. Basin 3C includes three assumed future lots between Blocks 2 and 3 of this plat. Basin 3C also includes land area outside of this plat that drains into the basin from the southwest, including an existing house at the east end of the future 21st Court cul -de -sac in "Ridgemont Estates North - 5th Addition ". Basins 3B and 3D include the steep hillside that is partially within the existing developed lots in Block 1 of the original Ridgemont Estates. Basins 3A, 3B, 3C and 3D all drain to Drainage Pond 3A. For an analysis of this detention pond, see the following section, "Pond Volume Calculations ". Basin 3E drains off -site to the large drainage area to the east, along with runoff from Basin 4E of Ridgemont Estates North - 4th Addition, and offsite drainage from the hillside to the SE of these plats, and from the unplatted farmland to the northeast of these plats (this farmland is within the preliminary plat of Ridgemont Estates North). See separate analysis of drainage to the large easement area in Part [I of this report. NOTES: SUMMARY TABLE 2: BASIN FLOWING INTO PLAT FROM NORTH Basin 4C is a portion of Ridgentont Estates North - 41h Addition, and includes the north half of Pond 3A and the lots i.nvnediately to the north. Basin Numc: 4C Units Total Arca -"110,360 salt, Pervious ci 16,060 stn 0. Impervious Area v 24,300 salt. # D'ways= Arca ✓6— 6,000 sq.fl. # Houses—Area ■G= 12,000 so.ft. Asphalt Streets ✓6,300 sq.fi_ "208" Volume v263 CU. ft. Peak Qt L53 cfs• Timc to peak 13 nun. Qp 0.33 cfs Storage Vol Lillie 2,303 cu.ft. Pond Name 3A & Location L-5 to 10, 13-1 Driveways are assumed to be 1,000 sq. fl. of concrete per each lot, and housesare assumed to cover 2,000 sq. ft. per each lot. Peak Q10 values are used in determining the capacities of the ditches and culverts. Qp is the calculated peak for maximum storage. This value, sustained for the 100 minute duration of the storm hydrograph, yields the storage volume (assuming no outflow). The Qp figures are used in the coniposite hydrographs to determine the storage volume requirements in the de Lion pond. Basin 4C includes the northern 1/3 of Drainage Pond 3A, and runoff from the south half of Radco Drive between high points 5 +00 and 8 +50. The street drains to Drainage Pond 3A via a broad ditdt. For an analysis of Pond 3A and the ditch, see the following section, "Drainage Pond 3A Volume Calculations" and the Flow Analyses section, part 5. Basin Name: R EN'L -A REN -B RE:NZ-C RENZ -D RENZ-11 .. Units Total Arca 8.60 2.50 0.40 3.50 1.15 acres Pervious Area 0.70 acres Impervious Area — -- ---- -- 0.45 acres Composite 'C' 0.30 0.45 0.55 0.45 0.443 acres Peak ( 9.03 4.78 1.01 5.67 1.87 cfs Time to peak 9 6 3 8 3 min. Qp 1.75 0.76 0.15 1.07 0.35 cfs Storage Volume 10,526 4.589 897 6,425 2,082 cu.ii. SUMMARY TABLE 3: DRAINAGE BASINS FLOWING INTO PLAT FROM THE SOUTH (Renz -N basins) These five basins consist of existing developed Tots that drain into the plat via the existing storm sewer easement between Lots 11 & 12, Block I, of "Ridgemont Estates" (originally "Rent Subdivision "). These are the northerly five of eight total basins flowing into Ridgemont Estates North - 3rd Addition via the existing/proposed ditch from the south portion of the plat. NOTES: The data for Basins "Renz -A" through "Renz -D" is from the original 1975 stormwater runoff calculations for "Renz Subdivision ", later changed to "Ridgemont Estates ". Peak Q50 values are used in determining the capacities of the ditdies and culverts. These. peak flows are used in the hydrographs with names ending in "Q" (e.g. "Renz -AQ "). Qp is the calculated peak for maximum storage. This value, sustained for the 100 minute duration of the storm hydrograph, yields the storage volume (assuming no outflow). The Qp figures are used in the composite hydrographs in the section titled " Hydrographs for Maximum Storage in Pond 3A" to determine the storage volume requirements in the detention pond. These five basins flow together to the "existing catch basin, to be abandoned" located in Lot -3 of Ridgemont Estates North - 5th Addition. At that location, flow from these five basins is joined by flow from the three basins on the following page. Two combined hydrographs have been calculated for 50 -year storm event on all basins above. "Benz -N" is the combined hydrograph for calculating maximum storage in Drainage Pond 3A. "Renz -NQ" is the combined hydrograph for peak flows in the existing/proposed ditch (combined with "Reuz -SQ" - see next page). The "final destination" of stormwater from all five of these basins is Drainage Pond 3A. For an analysis of this detention pond, see the section titled "Drainage Pond 3A Volume Calculations ". SUMMARY TABLE 4: DRAINAGE BASINS FLOWING INTO PLAT FROM THE SOUTH (Renz-S basins) These three basins consist of existing developed lots that drain into the plat via the existing storm sewer easement between Lots 16 & 17, Block 1, of " Ridgemont Estates" (originally "Benz Subdivision ") These are the southerly three of eight total basins flowing into Ridgemont Estates North - 3rd Addition via the existing/proposed ditch from the south portion of the plat. NOTES: Basin Mane: RENZ-E RENZ-F EENUG Units Total Arw 5.20 3.50 2.64 acres Pervious Area 2.UK acres Impervious Area 0.56 acre Composite 'C' 0.40 0.40 0.31 acres Peak Qc.,1 7.16 4.70 3.73 cfs Time to peak 9 9 4 nun. Qp 1.41 0.95 0.55 cfs Storage Volume 8,486 5,712 3,329 cu.ft. The data for Basins "Renz-E" and "Renz -F" is from the original 1975 stormwater runoff calculations for "Renz Subdivision ", later changed to "Ridgemont Estates ". Peak QS0 values are used in determining the capacities oldie ditches and culverts. These peak flows are used in the hydrographs with names ending in "Q" (e.g. "Reuz -FQ "). Qp is the calculated peak for maximum storage. This value, sustained for the 100 minute duration of the storm hydrograph, yields the storage volume (assuming no outflow). The Qp figures are used in the composite hydrographs in the section titled "Hydrographs for Maximum Storage in Pond 3A" to determine the storage volunie requirements in the detention pond. These three basins flow together via an existing ditch to the "existing catch basin, to be abandoned" located in Lot - 3 of Ridgemont Estates North - 5th Addition At that location, flow front these three basins is joined by flow from the five basins on the preceding page. Two combined hydrographs have been calculated for 50 -year storm event on all basins above. "Rent -S" is the combined hydrograph for calculating maximum storai a in Drainage Pond 3A. "Renz -SQ" is the combined hydrograph for peak flows in the existing/proposed ditch (combined with "Renz -NQ" - see previous page). At the catch basin site, the flows from "Renz -NQ" and "Renz-SQ" are combined, in a hydrograph called "Renz -NSQ ", and flow via the existing/proposed ditch to the culvert under Renz Drive at Station 5 +50, and on to Drainage Pond 3A_ The "final destination" of storrnwater from all eight ofthe "Rent -" basins is Drainage Pond 3A. For an analysis of this detention pond, see the following section, "Drainage Pond 3A Volume Calculations ". DRAINAGE POND 3A VOLUME CALCULATIONS A large detention pond, referred to as Drainage Pond 3A, will be constructed on the nonhern portion of Lots 5 through 10, Block 1 of Ridgenront Estates North - 3rd Addition, and the southern portion of Lots 6, 7 and 8, Block 2 of Ridgemont Estates North - 4th Addition_ This pond shall receive stormwater runoff from the land area described as Basins 3A through 3D, Basin 4C, and Renz -A through Renz -H. Due to the large inflow and subsequent large storage volume required, this ponding area is designed with 3' to 4' of total available depth. To store tine calculated 30,000 cubic foot volume with 6 c.fs. outflow, the maximum storage depth is about 22" above the level floor of the pond. Due to this ponding depth, Drainage Pond 3A is designed with gradual 10: I (H:V) slopes on all sides (except 5:1 on sides bordering Utility Lot "A "). For this drainage pond with 10:1 and 5:1 side slopes, the pond volume at any depth can be calculated with three components: the volume directly above the floor area plus the volume above the 10:1 side slopes plus the volume above the 5:1 side slopes. Volume is calculated at 6" depth for "208" treatment and at 22" depth for storage, as follows: At 6" depth: Pond Volume = (0.5 ft. depth x pond floor Area) + (I/2 x 0.5 x 5.0 x pond floor Perimeter c@i 10:1) + (1/2 x 0.5 x 2.5 x pond floor Perimeter @ 5:1) = 0 . 5 A + + At 22" depth: Pond Volume = (1.83 ft. depth x pond floor Area) + (1/2 x 1.83 x 18.33 x pond floor Perimeter @ 10:1) + (1/2 x 1.83 x 9.17 x pond floor Perimeter @ 5:1) = 1.83 A + 16.78 PlO_1 +8.39P5 5.0 feet --11 *********************************** * * * * * * * * * * * * * * ** * ** *i * * * * ** * * ** *#sin * * * * * * * * ** feet --si 1 6" = 0.5 ft. 6 " =0.5ft. Pond Floor Pond Floor 22" = 1.83 ft. 18.33 feet • SL E fi— 9.17 feet —mil i 22" =1.83 ft. ' 5 '' 5 DRAINAGE POND 3A- Pond Floor Area, A = 11,600 sq. ft. (see sketch below) Pond Floor Perimeter, P = 625 LF Total; 470 LF with 10.1 slopes, and 155 LF with 5:1 slopes. Volume at 6" depth = 0.5 A + 1.25 P10:1 + 0.625 PS:1 =0.5( 11,600) +1.25(470) +0.625( 155) = 5,800 + 587 + 97 = 6.484 cu. ft. The total "208" volume required for Basins 3A + 3B + 3C + 3D + 4C (from Sumunary Tables) = 515 + 299 + 216 + 0 + 263 = 1,293 cubic feet. Therefore, Drainage Pond 3A is more than adequate for "208" treatment of stormwater runoff from these five basins, with the drywell grates set 6" above the pond floor. Note: "208" treatment is not required for runoff from the existing developed land in Basins Renz -A through Re nz -H. Volume at 22" depth = 1.83 A + 16.78 P10 + 8.39 P5:1 = 1.83( 11,600) + 16.78 (470) 1. 8.39 ( 155 ) = 21,228 + 7,887 + 1,300 = 30.415 cu. f1. The total maximum volume to store with 6.0 c.f.s. outflow is 30,000 cubic feet (see following section). Therefore, Drainage Pond 3A can handle the calculated volume at a depth of 22 ". NOTE: At a pondung depth of 36 ", which is the minimum construction depth of the pond as shown on the "208" Pond Section Detail, the pond volume is about 60,000 cubic feet, which is about double the calculated maximum storage volume required. 5 Z,zeo Fr.Z w - -- I �PoND ufL.lrt t.o "A 41 ADD'$ . _ 3R>Al. 4'7 Fr' 25 Pr= I rI— So G 7- / 1 V \� F ISR 5 : I 2p2o Fr. 7 1360 Pi 159 FLOOR.-- 2,560 Fr!' 8 J 2,1(30 FT? 9 8 42 Frz kTM "P e J se fi 5 42 Fr. J DRAINAGE E FbND 3A POND -2 Version: 5.15 S /N: 1295160123 Page 1 of 1 Executed 12 -09 -1993 17:16:01 Data directory: *.HYD File Summary for Composite Hydrograph Time RENZ -E RENZ -F RENZ -G RENZ -S (hrs) (cfs) (cfs) (cfs) (Total) 0.00 0.10 0.20 0.30 0.40 0.50 0.60 0.70 0.80 0.90 1.00 1.10 1.20 1.30 1.40 1.50 1.60 1.'70 1.80 Missing 1.0 1.4 1.4 1.4 1.4 1.4 1.4 1.4 1.4 1.4 1.4 1.4 1.4 1.4 1.4 1.4 1.0 0.1 Missing 0.6 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.7 0.1 Missing 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.2 0.0 0.0 2.1 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.0 0.3 Q Hsi D?- 0CaKI 1 For- id"Att - C1ar.f.6E_ POND -2 Version: 5.15 S /N: 1295160123 Executed 12 -09 -1993 17:21:23 Data directory: *.HYD File Summary for Composite Hydrogrdph Time RENZ -A RENZ -B RENZ -C RENZ -D (hrs) (cfs) (cfs) (cfs) (cfs) Page 1 of 1 RENZ -H RENZ -N (cfs) (Total) 0.00 Missing Missing Missing Missing Missing 0.0 0.10 1.2 0.8 0.2 0.8 0.3 3.2 0.20 1.8 0.8 0.2 1.1 0.3 4.1 0.30 1.8 0.8 0.2 1.1 0.3 4.1 0.40 1.8 0.8 0.2 1.1 0.3 4.1 0.50 1.8 0.8 0.2 1.1 0.3 4.1 0.60 1.8 0.8 0.2 1.1 0.3 4.1 0.70 1.8 0.8 0.2 1.1 0.3 4.1 0.80 1.8 0.8 0.2 1.1 0.3 4.1 0.90 1.8 0.8 0.2 1.1 0.3 4.1 1.00 1.8 0.8 0.2 1.1 0.3 4.1 1.10 1.8 0.8 0.2 1.1 0.3 4.1 1.20 1.8 0.8 0.2 1.1 0.3 4.1 1.30 1.8 0.8 0.2 1.1 0.3 4.1 1.40 1.8 0.8 0.2 1.1 0.3 4.1 1.50 1.8 0.8 0.2 1.1 0.3 4.1 1.60 1.8 0.8 0.2 1.1 0.3 4.1 1.70 1.2 0.5 0.0 0.7 0.2 2.8 1.80 0.1 0.0 0.0 0.0 0.0 0.1 WID o GkivFH ro F. MNW.k.iM STeFLAGE 1 F O f-.1 As I Jam+ ` S POND -2 Version: 5.15 S /N: 1295160123 Executed 12 -09 -1993 18:19:03 Data directory: *.HYD File Summary for Composite Hydrograph Time BENZ -S REND -N REND -ALL (hrs) (cfs) (cfs) (Total) 0.00 0.10 0.20 0.30 0.40 0.50 0.60 0.70 0.80 0.90 1.00 1.10 1.20 1.30 1.40 1.50 1.60 1.70 1.80 0.0 2.1 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.0 0.3 0.0 3.2 4.1 4.1 4.1 4.1 4.1 4.1 4.1 4.1 4.1 4.1 4.1 4.1 4.1 4.1 4.1 2.8 0.1 0.0 5.4 7.0 7.0 7.0 7.0 7.0 7.0 7.0 7.0 7.0 7.0 7.0 7.0 7.0 7.0 7.0 4.7 0.3 Q� FI`IVr� Gm1-14 Fo MAX1MU STDRA6E ro B AStJS CoIA LuJ EG Page 1 of 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 POND -2 Version: 5.15 S /N: 1295160123 Page 1 of 1 Executed 12 -14 -1993 15:10:53 Data directory: *.HYD File Summary for Composite Hydrograph Time RENZ -ALL REN -3A REN -3B REN -3C REN -3D REN -4C REN3 -ALL (hrs) (cfs) (cfs) (cfs) (cfs) (cfs) (cfs) (Total) 0.00 0.10 0.20 0.30 0.40 0.50 0.60 0.70 0.80 0.90 1.00 1.10 1.20 1.30 1.40 1.50 1.60 1.70 1.80 0.0 Missing 5.3 0.5 7.0 0.5 7.0 0.5 7.0 0.5 7.0 0.5 7.0 0.5 7.0 0.5 7.0 0.5 7.0 0.5 7.0 0.5 7.0 0.5 7.0 0.5 7.0 0.5 7.0 0.5 7.0 0.5 7.0 0.5 4.7 0.1 0.3 0.0 0.0 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.2 0.0 0.0 0.2 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.1 0.0 0.1 0.1 U.1 0.1 0.1 U.1 0.1 U.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.0 0.0 t11.:1 614. Ft f - . NY X I 51DRAGE FP -?r_; AL-L 6"S -tit-1S DfiNf HA C./ Fnt'c 3A 0.0 0.2 0.3 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.3 0.1 0.1 6.6 8.6 8.6 8.6 8.6 8.6 8.6 8.6 8.6 8.6 8.6 8.6 8.6 8.6 8.6 8.6 5.6 0.6 POND -2 Version: 5.15 S /N: 1295160123 >»» OUTFLOW HYDROGRAPH ESTIMATOR ««< Inflow Hydrograph: REN3- ALL.HYD Qpeak = 8.6 cfs Estimated Outflow: ESTIMATE.EST Qpeak = 6.0 cfs y CI X- TMFE g DRI S uJ Pore:) 3A Approximate Storage Volume (computed from t= 0.00 to 1.69 hrs) 30,000 cubic -ft IF DP-Ai uAGE t-) I) 1 'Z. DESi.:.s-sT, DePTM Would BE Ato 22 AT 30,000 cu•FT. vo.rvM ( pu.lr 3 h ■J L rwr. Aiv•Yt1 > 3o t&/ F'ti •1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 POND -2 Version: 5.15 S /N: 1295160123 Plotted: 12 -14 -1993 Flow (cfs) 0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 9.0 10.0 11.0 1 1 1 1 TIME (hrs) * File: REN3- ALL.HYD Qmax = 8.6 cfs = ? x File: ESTIMATE. EST Qmax = 6.0 cfs = nA - 7'1rE ° 6 D►=7 The north half of Rena Drive west of the high point at Station 2 +62.09 drains to the "208" paid in Lot 1, Block 5 of Ridgemont Estates North - 2nd Addition ( "Pond 5 "), on the east side of Sonora Street. This pond was sized to take drainage from the area within the basin boundary line shown on the drainage map for the 3rd Addition, including the asphalt roadway and the house and driveway on Lot 1, Block 1 of the 3rd Addition. This basin boundary is also shown on the drainage plan map for the 2nd Addition. Similarly, the south half of Renz Drive west of the high point at Station 2 +62.09 drains to the approved "208" pond in Lot 1, Block 6 of Ridgemont Estates North - 2nd Addition ( "Pu nd 6"), at the intersection of Renz Drive and Sonora Street. This pond was sized to take drainage from the area within the basin boundary line shown on the drainage map for tine 3rd Addition, including the asphalt roadway and the house and driveway on Lot 1, Block 3 of the 3rd Addition. This basin boundary is also shown on the drainage plan map for the 2nd Addition. Conclusion: Since the area to the west of the basin boundary line (which runs through the his point Station 2+62.09 of Renz Drive) is already meeting the County's requirements for runoff treatment, that small portion of Ridgemott Estates North - 3rd Addition has been excluded from the drainage calculations for this plat. For further information, refer to the Drainage Report and plan maps for Ridgemont Estates North - 2nd Addition. BASIN 3A: Ql0 = 3.15 cfs to the 10 LF curb opening to ditch to Drainage Pond 3A at the Iow point, Station 5 +50, left side of Renz Drive. Refer to Figure 17 of "Guidelines for Stormwater Management" H =0.21 ft. h =0.5 H/h= 0.21/0.5 =0.42 ft. /ft. Q/L = 0.3 cfs/LF @Q10 =3.15 cfs, L= 10.5feet .. Construct 10 ft. wide curb opening from Station 5+45 to 5 +55, Left side of Renz Drive. BASIN 3B + 3C: EXISTING PONDS - OFFSITE **************************** * * * * * * * ** * * * * * ** *s ** *** ** * i* CAPACITIES OF CURB OPENING INLETS Q10 = 2.25 + 1.51 = 3.76 cfs to the 10 LF curb opening to the culvert entrance at the low point, Station 5 +50, right side of Reitz Drive. Refer to Figure 17 of "Guidelines for Stormwater Management" H = 0.23 ft. h = 0.5 H/h = 0.23/0.5 = 0.46 ft. /ft. Q/L = 0.35 cfs/LF @Q10= 3.76cfs, L= 10.7 feet :. Construct 10 ft. wide curb opening from Station 5 +45 to 5 t55, Right side of Renz Drive. STOPPING SIGHT DISTANCE CALCULATIONS Date: 23- Dec -93 CREST VERTICAL CURVE Project Terrain:x ROAD TYPE: Road name: PVI stat Design Speed: Entering slope (G1, %): Exiting Slope (G2, %): 1G2 -G11= A= Check S >L: L1= 2S- (1329/A) L1 = Check S<L: L2 = A(S* *2)/1329 vcurv2.1 /Aug93 Urban /Suburban Public x Local Access Arterial Collector Secondary Major Renz Drive 250 30 L2 = 63.5064 SPOKANE COUNTY ENGINEERS Review # 1 ReviewerChristenson Project name: Ridgemont Estates North 3rd Flat (General land slope 0% to 80) Rolling (General land slope >8% to 15 %) f Mountains (General land slope >150) Private Extension to 8 or fewer lots Tract "X" Length of vertical curve pr Min. Stopping Sight Distanc - 229.86 note: use min curve length = 0. Required minimum curve leng Semi -rur 100 200 0 Curve provided is Adequate STOPPING SIGHT DISTANCE CALCULATIONS Date: 23- Dec -93 SAG VERTICAL CURVE Project Project name: Ridgemont Estates North 3rd Terrain:x ROAD TYPE: Check S <L: Urban /Suburban Public x Local Access Arterial Collector Secondary Major Road name: Rene Drive PVI stat 550 Length of vertical curve pr 100 Design Speed: 30 Min. Stopping Sight Distanc 200 Entering slope (G1, %): Exiting Slope (G2, %): 1G2 -G11= A= L2 = 58.1818 SPOKANE COUNTY ENGINEERS Flat (General land slope 0% to 8%) Rolling (General land slope >8% to 15%) f Mountains (General land slope >15 %) Private Extension to 8 or fewer lots Tract "X" -0.8 0.8 1.6 Check S >L: L1 = 2S - ((400 +3.5S) /A) Review i 1 ReviewerChristenson L1 = -287.5 note: use min curve length = 0. Required minimum curve leng 0 Curve provided is Adequate L2 = A(S* *2)/(400 +3.5S) Semi -rur STOPPING SIGHT DISTANCE CALCULATIONS Date: 23- Dec -93 CREST VERTICAL CURVE Project Terrain:x ROAD TYPE: Urban /Suburban Public x Local Access Arterial Collector Secondary Major Road name: Renz Drive PVI stat 975 Design Speed: 30 Entering slope (G1, %): 0.8 Exiting Slope (G2, %): -1.71 1G2 -G11= A= 2.51 Check S >L: L1= 2S- (1329/A) L2 = 75.5455 SPOKANE COUNTY ENGINEERS Review 11 1 ReviewerChristenson Project name: Ridgemont Estates North 3rd Flat (General land slope 0% to 8%) Rolling (General land slope >8% to 15 %) f Mountains (General land slope >15 %) Private Extension to 8 or fewer lots Tract "X" Semi -rur Length of vertical curve pr 150 Min. Stopping Sight Distanc 200 L1 = - 129.48 note: use min curve length = 0. Required minimum curve leng 0 Check S <L: Curve provided is Adequate L2 = A(S* *2)/1329 11110 RIF Ills 1110 IIP IBE MN NW lb _ t (Joins sheet 67) : may • 1r -�' I.4 • • i. a ,. a ---- • • • /��: . • ai: i 1 li• ;....� • CHICAGO 'f • GgA k 1 :++'f_ ..,,e • ��s' . 1 » ^ - ..1 .--9 : .GgA t, i • 4 7 : �' 3 - . "' _ _.- , �: Y6 -t II .-5 _. [ - 1 � `3 1 i. l t t } • C x J; 44- _ S Li ..b 11 x :; L t'•1 \.4 r ' 1 ' •-•i1-... 11 • - g t ..•. ;>.!.`: A GmB � X l, a::-.:::: 1 �1. ,, i .1 PsA do i '. . 3rr;r•ll • GgA u • srpKA 5 OKANt CO O N. N TY, R ST 1 It 11 r y AS H ING — ::HEET NUMB 76 ASHIN :SHEET NUMBS 76 ,44E. R.45E1. •�1I I� - -• .f:sw CuB -rf J +I 7 N _ II - '1 'N ' - 3 1 s 14 • x.. • W: • .s. • 74 DsC Dragoon atouy silt loam, 0 to 30 percent slope. D Dragoon stony silt loam, 30 to 55 per - ecut slopes. D v 0 Dragoon. very rocky complex, 20 to 55 percent alupw. EkB Eloika silt loam 0 to 20 percent slopt3. EIC EID Em FaB FaB3 FaC3 Fm GaC3 GgA Gg13 Map symbol Sail moue Eloika very stony silt loam, 0 to 30 per- cent slupan. Eluika very stony silt loam, 30 to 55 perccut atopaa. EuKIeut silt leant. Freeman silt loam, 5 to 2U percent elopit ,. Freeman silt loam, 5 to 20 percent slopes, severely eroded. Frectnutt silt luaus, 20 to 30 percent slopxaa, severely eroded. Fresh water marsh. Garfield silty clay loans, 0 to 30 percent slopes, severely eroded. Garrison gravelly loans, 0 to 5 percent slopes. 1 Garrison gravelly loam, 5 to 20 percent rlupa�. GnB - Garrison very stony loam, 0 to 20 percent dopes. GpA Glenrose silt loath, 0 to 5 percent slopes. GpB Clcurose ail t!aunt, 5 tu 20 percent slopes. GpC Glenruse silt luaus, 20 to 30 percent ,slope. GpD Cletrusu silt 'aunt, 30 to 55 percent slopes. SOIL SURVEY 1Jexriptioia ut sail 4,,d bite Similar to Dragoon silt lua 0 to 30 p crceut slope, except that the surface layer is stony. Dragoon part similar to Dragoon silt loam, U to 3U percent slopes, except that dept's to Led - rock ruogtaa from 16 to 2u inches. 'tuck out- crop included in this complex. \fediunt- textured, well - drained soil funned from glacial till containing a large amount of voI- cuuic ash itt the surface layer; underlain by gravel ut depth of 3U to uU inches; occupies undulating, Lnuruiuelike topography. Similar to Isloik a silt luus, 0 to 20 percent slopiaa, except that ditty are very.stuuy. throughout. Medium - textured, somewhat poorly drained, alkaline soil (orated in ullut'isam fruit calcar- eous silt, vuleunle ash, and diatunite; depth LO Water tulle fluctuates (rums near the surface to about (1 feet. Very deep, moderately well drained upload soils with medium-textured surface layer and inedt- tun or moderately line textured subsoil; formed from silt oil rollutg to Lilly uplands. Shallow, swampy, iutewitteut panda uud , fringe around Takes that have a Iluctuatiug water table. lsugiuceiiisg data is nut sheet", us hand type is tau variable. GmB Garrison very gravelly lotus, 0 to 8 Shuilar to Curriuuu gravelly loam, except that percent slopes. the surface layer is very gravelly. SiutUur to Garrisou gravelly loam, except that the surface layer is very stony. Yury deep, medium-textured, well - drained :toils formed front ueid igueuus glacial till; surface htyer influenced by lees end vulcuuic !LA; on gently rolling to steep uplands. T.tul.E G.— Lar•irj tiescripf;uras vj •in's clad fit Depth from surface f�. U to '2li tu 41 41 to uu U to 22 22 to 72 Very deep, well - drained boil cIeveluped in logs U tu wt ridgetops a kuubs un the rolling to hilly - e to Uplands i11 Lite l soil arru. ' 23 tu tau Gravelly, , tedium- textured, somewhat cxces- U to 15 aively drained sails funned in gravelly glacial 15 to 44 outwits!' material from a variety of acid, -34 to t:U igneous parent rock; un nearly level to mod - erately sloping terraces; dept's to mixture of sand, gravel, and cuLllcstwua nuuges from 234 to 5 feet. Uw15 15 to 44 44 to Liu C'lassitleatiuu USD.1 texture u tai 24 Silt loam 24 to 44 Grav -woe 44 to .;J Very gr:,a•e11y sandy 104,111. 53 to uU Gravel- , sal luatt, Vary One sandy luau,. Sandy clay luanu- -- Si1t loan, Silty clay luattt Silty clay luaus Silty clay , Silty clay loam Gravelly loans 1'ery gravelly loam.. Saud, gravel, :sad c�tibbletoua. Very gravelly lout,.. Very gravelly loam -. gravel, sold cubbleatuuas. 0 tu 72 Silt loam 82 Map symbol PoA Peo►►e silt loam, drained, 0 to 5 percent slopes. Phoebe sandy loam, 0 to 5 percent slopes. Phoebe sutudy loam, 5 to 20 percent slopes. Ps8 RdA Reardon silt poem, 0 to 5 percent slopes Rd B Reardon hilt loam, 5 to 20 percent slopes. Ra82 Bearden silt loam, 5 1.0 20 p, rcunt sluix:s, eroded. RJC2 Rearclaa At loafs, 20 to 30 la:recut sloptz, eroded. Rh SaB Sa02 SaC SaC2 SaD ScC ScC2 ScD ScD2 Sc Sk Sm Riverwash. Ro Rock outcrop. Senuuhmoo muck. Soil tame Schumacher silt loam, 0 to 20 percent slope . Schumacher silt loam, 0 to 20 percent slopes, eroded. Schumacher silt luaus, 20 to 30 percent Schumacher silt lotus, 20 to 30 percent slopes, eroded. Schumacher silt taunt, 30 to 55 percent slopes. Schumacher gravelly silt loam, 5 to 30 percent, slopes. Schumacher gravelly silt loam, 5 to 30 percent slopes, eroded. Schumacher gravelly hilt loam, 30 to 55 percent slopes. Schumacher gravelly silt loam, 30 to 55 percent slopes, eroded. Scuduhntoo snuck, druiued. Semiabmoo muck, moderately shallow, drained. SnA Snow silt loam, 0 to 5 percent slopes. SnC Snow silt loam, 5 to 30 percent slopes. SOIL SURVEY Description of soil and site Similar to Pewit: silt locus, 0 to 5 percent slopes, except that it la somewhat peens drained. Very deep, well- drained and somewhat exces- sively drained suits ou nearly level to gently slopping outwits!' terraces. Data apse applies to Phoebe port of Hong and Phoebe undiffer- entiated groups (SA, BrB, BrC. Bs8) except for texture of surface Myer. Very deep, well - drained claypan auila formed from loess on rolling upl:uads. Similar to Rcarda n silt loam, 0 to 5 percent slug e , CIO: [it that 30 to 110 percent of the original surface layer has been removed by erosiou. This unit occurs on low bottoms deep; perennial and intermittent streams; consists a,f gravel, cobblestuuts, and atuu�, with very little timer interstitial materiel; flooded every year during the runoff season. Engineering data 6 not given, as land type 6 tun variable. This unit 6 more than 90 percent granite, gneiss, schist, or basalt outcrops. Engineering data are not given, as land type is toe variable. Deep, well - drained soils termed in quartzite, soft sandstone, or shale, mixed with loess and volcanic ash in upper part; depth to cp shade, or soft sandstone ranges from 40 to NO litchis. The eroded Schwuucber hilt loam is similar to the uucroded Schumacher s ilt louu.i, except that 30 to 50 percent of the surface payer has been rumored by erosion. The unerodcd Schumacher gravelly silt tow are similar to Schumacher silt loeina, except that 15 to 20 percent of the surface layer 6 gravel. The eroded Schu •her gravelly silt loons are also similar to Schumacher silt looms, except that the surface layer 6 gravelly and 30 to 50 percent of it has been removed by erosion. Similar to Seininhmoo truck, drained, except that 16 6 very poorly drained; water table stays within 1 foot of the surface. Engineer- ing data not applicable. Very deep, poorly drained, organic soil developed from tales, reeds, and sedges in basins, former lakes, and swamps; water table fluc- tuates from 12 to -IS inches below the surface. Similar to Sesnialtu►ao snuck, drained, except Unit it is moderately shallow to bedrock, mineral soil, or thick compact layers of pumicite. Very deep, well - drained, tnediutu- textured soils formed front recent alluvium and loess. TAULt-: U.— L'rief dcser.pllures of aoila arid their Depth from s urface !r. Cias:ificatiou USDA. iexture 0 to 34 Sandy loam :14 to 14 Loamy sand 44 to ti0 Saud 0 to 20 jilt lo:.us 2u to 33 Light silty clay 33 to Cu • Silt luau, 0 to 11 Silt loam I1 to 53 Cravelly silt loam and gravelly heavy loam. 53 to 72 C:rava•lly clay loam... 0 to 17 Muck 17 to 62 Peat P 1' 0 to 60 Silt loam NI Flow Analyses Following are composite hydrographs and channel flow calculations for the following. 1_ "Existing Ditch from South of Plat" This analysis considers the flow through the existing ditch which runs in a northerly direction from the culvert outlet near the westerly property corner of Lots 16 & 17, Block 1 of the original "Ridgemont Estates" (originally named "Renz Subdivision" on the 1975 stormwater drainage plan) to the existing "catch basin to be abandoned" located at the SE end of Lot 3 of Ridgemont Estates North - 5th Addition. The flow in this ditch comes from basins Renz -E, Renz -F and Renz -G. The composite hydrographs for these three basins is called "Renz -SQ ", which peaks at 11.9 c.fs. 2. " Existing/Proposed Ditch to Culvert" This analysis concerns the flow which continues north from the existing "catch basin to be abandoned" in the existing ditch, then is directed via the proposed ditch extension to the culvert under Renz Drive. At the existing catch basin, flows approach from two directions: "Renz -SQ" comes from the south as described above, and "Rent -NQ" flows downslope from the east. Renz -NQ is the peak flow composite hydrograph for basins Renz -A, Renz -B, Renz -C, Renz -D and Renz -H. From the existing catch basin to the culvert, the composite of Renz -NQ and Renz -SQ is called "Renz -NSQ ". This composite of all runoff from the old Renz Subdivision is further joined by runoff from Basin 3D in hydrograph "REN -3DQ ". The total composite hydrograph for these two sources of water in the ditch to the culvert is called "REN- DTC1I" and peaks at 30.4 c.f.s. 3. "Culvert under Renz Drive, Station 5 +55" This culvert takes water from "REN -DTCH" (the flow in the existing/proposed ditch) as well as runoff from Basins 3B and 3C, which include the south half of Rent Drive. The composite hydrograph, called "REN3CULV ", peaks at 32.7 c.fs. 4. "Ditch from Culvert to Pond 3A" After the culvert, the flow referred to as "REN3CULV" above is joined by runoff from Basin 3A, which peaks earlier than the flow through the culvert and thus has no additional effect on the peak flow, which remains al. 32.7 c.fs. in the final composite hydrograph for this flow path, called "REN3- END ". 5. "Ditch from Radco Drive" This analysis considers the runoff from Basin 4C of Ridgemont Estates North - 4th Addition, to the north of Pond 3A, and puts all of it into a ditch from Station 6+50 Radco Drive to Drainage Pond 3A. POND -2 Version: 5.15 S /N: 1295160123 Page 1 of 1 Executed 12 -10 -1993 17:42:49 Data directory: *.HYD File Summary for Composite Hydrograph Time RENZ -EQ RENZ -FQ RENZ -GQ RENZ -SQ (hrs) (cfs) (cfs) (cfs) (Total) 0.07 0.07 0.08 0.08 0.08 0.09 0.09 0.09 0.09 0.10 0.10 0.10 0.11 0.11 0.11 0.12 0.12 0.12 0.12 0.13 0.13 0.13 0.14 0.14 0.14 0.14 0.15 0.15 0.15 3.4 3.6 3.7 3.9 4.0 4.1 4.3 4.4 4.6 4.7 4.9 5.0 5.2 5.3 5.5 5.6 5.8 5.9 6.1 6.2 6.3 6.5 6.6 6.8 6.9 7.11 7.1 6.9 6.8 0.16 6.7 0.16 6.5 0.16 6.4 0.17 6.2 0.17 6.1 0.17 5.9 0.17 5.8 0.18 5.6 0.18 5.5 2.2 2.2 2.3 2.4 2.5 2.6 2.7 2.8 2.9 3.0 3.1 3.2 3.3 3.3 3.4 3.5 3.6 3.7 3.8 3.9 4.0 4.1 4.2 4.3 4.4 4.4 4.5 4.6 4.71 4.6 4.5 4.4 4.3 4.2 4.1 4.0 3.9 3.9 L3.71 3.6 3.5 3.3 3.2 3.1 2.9 2.8 2.7 2.5 2.4 2.3 2.1 2.0 1.9 1.7 1.6 1.4 1.3 1.2 1.0 0.9 0.8 0.6 0.5 0.4 0.2 0.1 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 9.3 9.4 9.5 9.6 9.7 9.8 9.9 10.0 10.1 10.2 10.3 10.4 10.5 10.6 10.8 10.9 11.0 11.1 11.2 11.3 11.4 11.5 11.6 11.7 11.8 11.9] 11.9 11.7 11.5 11.2 11.0 10.8 10.5 10.3 10.1 9.8 9.6 9.3 » » » » » » » »> SUMMATION WARNING «« « «« « ««< Peaks were missed during interpolation for the following files: RENZ -EQ .HYD RENZ -FQ .HYD ` o 1N EXG.D�1 N Tn •' C 6 - rn 6 E A no.,EU irJ LCT 3 6F �.E.toatzn1 4so HYI)A0 gArK Fog. PEAK FUL&/. rr Ex1 =MJG >'T.^_11 FP-0 Z - S Lr���: Triangular Channel Analysis & Design Open Channel - Uniform flow Worksheet Name: Ridgemont North 3rd Comment: Existing ditch, end at "CB to be abandoned" Solve For Depth Given Input Data: Left Side Slope Right Side Slope Manning's n Channel Slope Discharge Computed Results: Depth Velocity Flow Area Flow Top Width Wetted Perimeter Critical Depth Critical Slope Froude Number 3.00:1 (H:V) 3.00:1 (H:V) 0.030 0.0850 ft/ft 12.00 cfs i Ap "Jr _ Qu 0.74 ft 7.22 fps 1.66 sf 4.47 ft 4.71 ft 1.00 ft 0.0177 ft /ft FULL --� pt�. OF C x'G t) i TCH AS t pc.P,y.J 1. FT. Open Channel Flow Module, Version 3.21 (c) 1990 Haestad Methods, Inc. * 37 Brookside Rd * Waterbury, Ct 06708 POND -2 Version: 5.15 S /N: 1295160123 Page 1 of 1 Executed 12 -10 -1993 17:46 :05 Data directory: *.HYD File Summary for Composite Hydrograph Time RENZ -AQ RENZ -BQ RENZ -CQ RENZ -DQ RENZ -HQ RENZ -NQ (hrs) (cfs) (cfs) (cfs) (cfs) (cfs) (Total) 3.5 3.6 3.8 3.9 4.1 4.2 4.4 4.5 4.6 0.7 0.7 0.7 0.6 0.6 0.6 0.5 0.5 0.5 0.4 4.6 0.4 4.5 0.3 4.3 0.3 4.2 0.3 4.0 0.2 3.9 0.2 3.7 0.2 3.6 0.1 3.4 0.1 3.3 0.1 3.1 0.0 3.0 0.0 2.8 0.0 2.7 0.0 2.5 0.0 8.8 2.4 0.0 8.6 2.2 0.0 8.4 2.1 0.0 8.2 1.9 0.0 8.1 1.8 0.0 7.9 1.6 0.0 7.7 1.5 0.0 7.5 1.4 0.0 7.3 1.2 0.0 7.1 1.1 0.0 6.9 0.9 0.0 6.7 0.8 0.0 6.5 Missing 0.0 » » » » » » » » > SUMMATION WARNING « «« « « « « <<< Peaks were missed during interpolation for the following files: RENZ -AQ .HYD RENZ -BQ .HYD RENZ -CQ .HYD RENZ -DQ .HYD RENZ -HQ .HYD 0.07 0.07 0.08 0.08 0.08 0.09 0.09 0.09 0.09 0.10 0.10 0.10 0.11 0.11 0.11 0.12 0.12 0.12 0.12 0.13 0.13 0.13 0.14 0.14 0.14 0.14 0.15 0.15 0.15 0.16 0.16 0.16 0.17 0.17 0.17 0.17 0.18 0.18 4.5 4.7 4.8 5.0 5.2 5.4 5.6 5.8 6.0 6.2 6.4 6.6 6.8 6.9 7.1 7.3 7.5 7.7 7.9 8.1 8.3 8.5 8.7 8.9 3.0 3.1 3.2 3.4 3.5 3.6 3.7 3.9 4.0 4.1 4.3 4.4 4.5 4.6 4.8 4.9 5.0 5.1 5.3 5.4 5.5 5.7 5 6 5.4 5.3 5.2 5.0 4.9 4.8 4.7 4.5 4.4 4.3 4.2 4.0 3.9 3.8 3.6 1.0 1.1 1.1 1.1 1.2 1.2 1.3 1.3 1.4 1.4 1.4 1.5 1.5 1.6 1.6 1.7 1.7 1.7 1.8 1.8 L 1.8 1.8 1.7 1.7 1.6 1.6 1.6 1.5 1.5 1.4 1.4 1.3 1.3 1.3 1.2 1.2 1.1 Q 550 HYDRoGMJt Fog. PeAK. FLOW TO ExtsrtNG C. . FPOM Z -rJ 5p%sur.15 12.7 13.1 13.6 14.1 14.6 15.0 15.5 16.0 16.5 16.9 17.1 17.2 17.4 17.6 17.8 18.0 18.1 18.3 18.5 18.7 18.8 18.9 ] Q50 18.8 18.7 18.5 18.0 17.5 17.0 16.5 16.0 15.5 15.0 14.5 13.9 13.4 12.9 12.4 11.3 POND -2 Version: 5.15 S /N: 1295160123 Executed 12 -10 -1993 17:49:09 Data directory: *.HYD File Summary for Composite Hydrograph Time RENZ -NQ RENZ -SQ RENZ -NSQ (hrs) (cfs) (cfs) (Total) Q5o HYDROGgAPH Fail P p , , 1i4 EXtSTa.1G DI TCH TO NE Fg.nNt E)c Isu,U G-. C. 8 FR-0M " R -IL- " BAS!/JS Page 1 of 1 0.07 12.7 9.3 22.0 0.07 13.1 9.4 22.5 0.08 13.6 9.5 23.1 0.08 14.1 9.6 23.7 0.08 14.6 9.7 24.3 0.09 15.0 9.8 24.8 0.09 15.5 9.9 25.4 0.09 16.0 10.0 26.0 0.09 16.5 10.1 26.6 0.10 16.9 10.2 27.1 0.10 17.1 10.3 27.4 0.10 17.3 10.4 27.7 0.11 17.4 10.5 28.0 0.11 17.6 10.6 28.3 0.11 17.8 10.8 28.5 0.12 18.0 10.9 28.8 0.12 18.1 - 11.0 29.1 0.12 18.3 11.1 29.4 0.12 18.5 11.2 29.7 0.13 18.7 11.3 29.9 0.13 18.8 11.4 30.2 0.13 118.93 11.5 30.4 0.14 18.8 11.6 30.4 q50 J A1kv+ 0.14 18.7 11.7 30.4 cvmediJ =-0 0.14 18.5 11.8 30.3 0.14 18.0 [11.9 29.9 0.15 17.5 11.9 29.4 0.15 17.0 11.7 28.7 0.15 16.5 11.5 28.0 0.16 16.0 11.2 27.2 0.16 15.5 11.0 26.5 0.16 15.0 10.8 25.7 0.17 14.5 10.5 25.0 0.17 13.9 10.3 24.2 0.17 13.4 10.1 23.5 0.17 12.9 9.8 22.7 0.18 12.4 9.6 22.0 0.18 11.3 9.3 20.6 POND -2 Version: 5.15 S /N: 1295160123 Page 1 of 1 Executed 12 -13 -1993 18:40:41 Data directory: *.HYD File Summary for Composite Hydrograph Time RENZ -NSQ REN -3DQ REN -DTCH (hrs) (cfs) (cfs) (Total) 0.07 22.0 0.5 0.07 22.5 0.5 0.08 23.1 0.4 0.08 23.7 0.4 0.08 24.3 0.4 0.09 24.9 0.4 0.09 25.4 0.3 0.09 26.0 0.3 0.09 26.6 0.3 0.10 27.1 0.3 0.10 27.4 0.2 0.10 27.7 0.2 0.11 28.0 0.2 0.11 28.3 0.2 0.11 28.5 0.2 0.12 28.8 0.1 0.12 29.1 0.1 0.12 29.4 0.1 0.12 29.7 0.1 0.13 29.9 0.0 0.13 30.2 0.0 0.13 30.4 0.0 0.14 30.4 0.0 0.14 30.4 0.0 0.14 30.3 0.0 0.14 29.9 0.0 0.15 29.4 0.0 29.4 0.15 28.7 0.0 28.7 0.15 28.0 0.0 28.0 0.16 27.2 0.0 27.2 0.16 26.5 0.0 26.5 0.16 25.7 0.0 25.7 0.17 25.0 0.0 25.0 0.17 24.2 0.0 24.2 0.17 23.5 0.0 23.5 0.17 22.7 0.0 22.7 0.18 22.0 0.0 22.0 0.18 20.6 0.0 20.6 II>>>>>>>>>>>>>»» SUMMATION WARNING « « « « « « « «< Peaks were missed during interpolation for the following files: REN -3DQ .HYD 22.4 23.0 23.5 24.1 24.7 25.2 25.8 26.3 26.9 27.4 27.7 27.9 28.2 28.4 28.7 29.0 29.2 29.5 29.7 30.0 30.2 30.4 30 gm( 11,4 P RA i�O cam D rmH 30.4 f EX'G c SrrE -ro 30. 3 G , r�o RtWZ. D &'J 29 °`'wGT Q?.W)C F{yDRo GRA F°� PL FL.ew !0 Pitaposty DITCH EXTEJ.Mto/-] Tn CuI-ue* -1 F1OM AALL, "RF' -+Z- '` Entro1 (45o j pi.us oni -SITE 5n.SrN 3D (Q10). Triangular Channel Analysis & Design Open Channel - Uniform flow Worksheet Name: Ridgemont North 3rd Comment: Proposed ditch, end at Culvert under Rene Dr Solve For Depth Given Input Data: Left Side Slope 3.00:1 (H:V) Right Side Slope 3.00:1 (H:V) Manning's n 0.030 Channel Slope 0.0730 ft /ft Discharge 31.00 cfs --> Q rwc = 30.4 cfs CP rtvl3 f e) Computed Results: Depth Velocity Flow Area Flow Top Width Wetted Perimeter Critical Depth Critical Slope Froude Number 1. ft --a perm or PFatesED D rre—K tD ee 8.64 fps 3.59 sf 6.56 ft 6.92 ft 1.46 ft 0.0156 ft /ft FULL Open Channel Flow Module, Version 3.21 (c) 1990 Haestad Methods, Inc. * 37 Brookside Rd * Waterbury, Ct 06708 POND -2 Version: 5.15 S /N: 1295160123 Page 1 of 1 Executed 12 -13 -1993 18:53:54 Data directory: *.HYD File Summary for Composite Hydroyraph Time REN -DTCH REN -38Q REN -3CQ REN3CULV (hrs) (cfs) (cfs) (cfs) (Total) 0.07 0.07 0.08 0.08 0.08 0.09 0.09 0.09 0.09 0.10 0.10 0.10 0.11 0.11 0.11 0.12 0.12 0.12 0.12 0.13 0.13 0.13 0.14 0.14 0.14 0.14 0.15 0.15 0.15 0.16 0.16 0.16 0.17 0.17 0.17 0.17 0.18 0.18 22.4 1.8 23.0 1.8 23.5 1.9 24.1 2.0 24.7 2.1 25.2 2.1 25.8 2.2 26.3 2.2 26.9 2.1 27.4 2.1 27.7 2.0 27.9 1.9 28.2 1.8 28.4 1.8 28.7 1.7 29.0 1.6 29.2 1.5 29.5 1.5 29.7 1.4 30.0 1.3 30.2 1.2 x30.4 1.2 30.4 1.1 30.4 1.0 30.3 0.9 29.9 0.9 29.4 0.8 28.7 0.7 28.0 0.6 27.2 0.5 26.5 0.5 25.7 0.4 25.0 0.3 24.2 0.2 23.5 0.2 22 7 Missing 22.0 Missing 20 6 Missing 0.6 0.6 0.6 0.7 0.7 0.7 0.7 0.8 0.8 0.8 0.8 0.9 0.9 0.9 0.9 1.0 1.0 1.0 1.0 1.1 1.1 1.1 1.1 1.2 1.2 1.2 1.2 1.3 1.3 1.3 1.3 1.4 1.4 1.4_ 11.5 1.5 1.5 1.5 I » » » » » » » »> SUMMATION WARNING ««« « « « « «< Peaks were missed during interpolation for the following files: REN -3BQ .HYD REN -3CQ .HYD 24.8 25.4 26.1 26.7 27.4 28.1 28.7 29.3 29.8 30.3 30.5 30.7 30.9 31.1 31.3 31.5 31.7 31.9 32.2 32.4 32.6 32.7 ] QX „ C iveRT 32.6 e t. c.E 32.6 32.5 32.0 31.4 30.7 29.9 29.1 28.3 27.5 26.7 25.9 25.1 24.2 23.5 22.1 Fog, 1 Ft.o LI- TH P-O U N e UL ACRT QhWX 5 r 5 f't'A1L Dr .1E, 1!J CL-L., DIAI 4 ALL. .• , 2- e"sf Nis Pty^-. ON^ sITE bAsOS 2 b ? g AND 3" f w C1�06G uJ Rsr.►- nr�..tt.) Circular Channel Analysis & Design Solved with Manning's Equation Open Channel - Uniform flow Worksheet Name: Ridgemont North 3rd Comment: Culvert under Renz Drive at Station 5+50 Solve For Full Flow Capacity Given Input Data: Diameter Slope Manning's n Discharge Computed Results: Full Flow Capacity Full Flow Depth Velocity Flow Area Critical Depth Critical Slope Percent Full Full Capacity QMAX @.94D Froude Number 2.00 ft 0.0200 ft /ft �� Ccrcc�i� P; Fe- 0.012 s f�e`'' 34. cfs CQmAx= 22_1 c fs, 34.66 cfs 2.00 ft 11.03 fps 3.14 sf 1.92 ft 0.0174 ft /ft 100.00 % 34.66 cfs 37.28 cfs FULL Open Channel Flow Module, Version 3.21 (c) 1990 Haestad Methods, Inc. * 37 Brookside Rd * Waterbury, Ct 06708 POND -2 Version: 5.15 S /N: 1295160123 Page 1 of 1 Executed 12 -16 -1993 17:37:43 Data directory: *.HYD File Summary for Composite Hydrograph Time REN3CULV REN -3AQ REN3 -END (hrs) (cfs) (cfs) (Total) 0.07 24.8 2.3 27.1 0.07 25.4 2.2 27.7 0.08 26.1 2.1 28.2 0.08 26.8 2.0 28.8 0.08 27.4 1.9 29.3 0.09 28.1 1.8 29.8 0.09 28.7 1.7 30.4 0.09 29.3 1.6 30.8 0.09 29.8 1.4 31.2 0.10 30.3 1.3 31.6 0.10 30.5 1.2 31.7 0.10 30.7 1.1 31.8 0.11 30.9 1.0 31.9 0.11 31.1 0.9 32.0 0.11 31.3 0.8 32.1 0.12 31.5 0.6 32.2 0.12 31.7 0.5 32.3 0.12 31.9 0.4 32.4 0.12 32.2 0.3 32.5 0.13 32.4 0.2 32.6 0.13 32.5 0.1 32.6 0.13 1 32.7 3 0.0 32. 2 4 wac. IN P Fg.cM 0.14 - 32.6 0.0 32.6 cuLverr cun.ET To 0.14 32.6 0.0 32.6 pot4b 3A iNcLumNiG 0.14 32.5 0.0 32.5 ' n ptN�Y' Basir '+N 0.14 32.0 0.0 32.0 oa -srre g,uirus 3A;26,3a,3D• 0.15 31.4 0.0 31.4 0.15 30.7 0.0 30.7 0.15 29.9 0.0 29.9 0.16 29.1 0.0 29.1 0.16 28.3 0.0 28.3 0.16 27.5 0.0 27.5 0.17 26.7 0.0 26.7 0.17 25.9 0.0 25.9 0.17 25.1 0.0 25.1 0.17 24.2 0.0 24.2 0.18 23.5 0.0 23.5 0.18 22.1 0.0 22.1 » » » » » » » »> SUMMATION WARNING « « « «««««< Peaks were missed during interpolation for the following files: REN -3AQ .HYD Triangular Channel Analysis & Design Open Channel - Uniform flow Worksheet Name: Ridgemont North 3rd Comment: "Ditch" from culvert to Drainage Pond 3A Solve For Depth Given Input Data: Left Side Slope 5.00:1 (H:V) Right Side Slope 5.00:1 (H:V) Manning's n 0.030 Channel Slope 0.0100 ft /ft Discharge 32.70 cfs . = q,., prEv.s. PngC Computed Results: Depth 1.33 ft -' p1-CH C MiIJ , 2 ° - LEO' as rtx vt 1 4— u4 e�dvJ. Velocity 3.72 fps Flow Area 8.80 sf Flow Top Width 13.26 ft Wetted Perimeter 13.53 ft Critical Depth 1.22 ft Critical Slope 0.0159 ft /ft Froude Number 0.80 (flow is Subcritical) Open Channel Flow Module, Version 3.21 (c) 1990 Haestad Methods, Inc. * 37 Brookside Rd * Waterbury, Ct 06708 Triangular Channel Analysis & Design Open Channel - Uniform flow Worksheet Name: Ridgemont North 4th Comment: "Ditch" from Radco 6 +50 to Pond 3A =Basin 4C Solve For Depth Given Input Data: Left Side Slope 5.00:1 (H:V) Right Side Slope 5.00:1 (H:V) Manning's n 0.030 Channel Slope 0.0100 ft /ft Discharge 1.53 cfs = q, FPM aAsu -) 4G Computed Results: Depth 0.42 ft -+ �, }� ro t:E MiN. 1 Dew Velocity 1.73 fps Flow Area 0.88 sf Flow Top Width 4.21 ft Wetted Perimeter 4.29 ft Critical Depth 0.36 ft Critical Slope 0.0239 ft /ft Froude Number 0.66 (flow is Subcritical) Open Channel Flow Module, Version 3.21 (c) 1990 Haestad Methods, Inc. * 37 Brookside Rd * Waterbury, Ct 06703 1. Rational Method Peak Discharge 2. Hydrograph for Maximum Storage 3. Maximum Storage Volume Calculation 4C 3. Basins Flowing Into Plat from South. Rcnz -A Renz -B Renz -C Renz -D Renz -E Renz -F Renz -G Renz -H Individual Basin Data The following pages present calculations for the 13 basins that contribute storrnwater runoff to Drainage Pond 3A. The data is presented for each basin with the following three pages for each basin: The basins are presented in the following order: 1. Drainage Basins Within Ridgemont Estates North - 3rd Addition: 3A 3B 3C 3D 3E - which dots NOT flow to Drainage Pond 3A, but is part of this plat. It is included in Part I1 'Adis report, "Off -Site Drainage Analysis ". 2. Drainage Basin Flowing Into Plat from North: rzo -3A Quick TR -55 Ver.5.45 S/N:1315460151 Executed: 18:07:47 12 -08 -1993 * * * * * * SUMMARY OF RATIONAL METHOD PEAK DISCHARGES * * * * * * Q = adj * C * I * A Where: Q =cfs, C= Weighted Runoff Coefficient, I =in /hour, A =acres adj = 'C' adjustment factor for each return frequency Subarea Runoff Area Tc Wtd. Adj. I Total Peak Q Descr. 'C' acres (min) 'C' 'C' in /hr acres (cfs) Pervious 0.1501 1.59' Impervious 0.900 v 0.83 Ridgemont Estates North - 3rd Addition Basin 3A, flow to low point of Renz Drive 10 -year storm Oum1_n1.* Tc. : C A 1J►.1�_ TC RETURN FREQUENCY = 10 years `C' adjustment, k = 1 Adj. 'C' = Wtd.'C' x 1 2.93 0.408 0.408 3.180 2.42 ` - 3.15 V ,16 ► [o } - 0 .21 t-t"J. 0 2 2'19 / ASSvMe = o.21 A = '/z b ?- = '/z C - (0.2'7)7- = 131 FT 2 = 01 - z2so = o, 00'1 Fi G. 18 G -'- Fog rn itmureTE /- VtjiAye i r 9Y l : Q = 3.2 c.-'S //� v a = 3.24.5 _ 7. 4 A 1. 31 ff . T = 398 rf. 16, sec. = 2.. - 12 mu.). T z. 441- -t e S TO„r,L Tc = 0 .21 + 2.12 - a. 93, cRECK : 1 10 t 2.53 Mus, _ 3, lb - ( 0.408)( ; 3.IG c-(s 3,1(0 3.Z cc: :. AzS.,rM.Pnc'- or i>= Rta.J `34\ Quick TR -55 Ver.5.45 S/N:1315460151 Executed: 18:07:47 12 -08 -1993 * * ** Modified Rational Hydrograph * * * ** Weighted C = 0.408 Area 2.424 acres Tc = 2.93 minutes Adjusted C = 0.408 Td= 100.00 min. I= 0.48 in /hr Qp= 0.47 cr RETURN FREQUENCY: 10 year storm Adj.factor = 1.00 Output file: REN -3A .HYD Time Hours 0.049 0.632 1.215 Ridgernont Estates North - 3rd Addition Basin 3A, flow to low point of Renz Drive 10 -year storm HYDROGRAPH FOR MAXIMUM STORAGE For the 10 Year Storm me increment = 0.083 Hours Time on left presents time for first Q in each row. 0.47 0.47 .47 0.47 0.47 0.47 0.4 0.47 0.47 0 47 0.47 0.47 0.47 0.4 0.47 0.47 0. 7 0.47 0.47 0.47 0.0 Quick TR -55 Ver.5.45 S/N:1315460151 Executed: 18:07:47 12 -08 -1993 Weighted `C' 0.408 0.408 0.408 0.408 0.408 0.408 0.408 0.408 First peak outflow point assumed to occur at inflow recession leg. RETURN FREQUENCY: 10 yr `C' Adjustment = 1.uuu Allowable Q = 0.00 cfE Hydrograph file duration= 100.00 minutes Hydrograph file: REN -3A .HYD Adjusted 'C' 0.408 0.408 0.408 0.408 0.408 0.408 0.408 0.408 MODIFIED RATIONAL METHOD - - -- Summary for Single Storm Frequency - - -- Ridgemont Estates North - 3rd Addition Basin 3A, flow to low point of Renz Drive 10 -year storm Duration Intens. Areas minutes in /hr acres 3 10 15 20 30 40 50 60 3.180 2.240 1.770 1.450 1.040 0.820 0.680 0.610 2.42 2.42 2.42 2.42 2.42 2.42 2.42 2.42 Qpeak cfs 3.15 2.22 1.75 1.43 1.03 0.81 0.67 0.60 '1'c = 2.93 minutes VOLUMES Inflow StoragE (cu.ft.) (cu.ft. 553 553 1,329 1,329 1,576 1,576 1,721 1,721 1,852 1,851 1,947 1,946 2,018 2,018 2,172 2,172 ***************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** Storage Maximus 0.408 0.408 100 0.480 2.42 0.47 I 2,849 2,848 * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * X * * * * * * * * * * 7C * * * * * T uick TR -55 Ver.5.45 S/N:1315460151 Executed: 18:10:55 12 -08 -1993 * * * * * * SUMMARY OF RATIONAL METHOD PEAK DISCHARGES * * * * * * Q = adj * C * I * A Where: Q=cfs, C= Weighted Runoff Coefficient, I =in /hour, A =acres adj = 'C' adjustment factor for each return frequency Subarea Runoff Area Tc Wtd. Adj. I Total Peak Q Descr. 'C' acres (min) 'C' 'C' in /hr acres (cfs) Pervious 0.150 1.83 Impervious 0.900 0.51 Ridgemont Estates North - 3rd Addition Basin 3B, flow to low point of Renz Drive 10 -year storm RETURN FREQUENCY = 10 years 'C' adjustment, k = 1 Adj. 'C' = Wtd.'C' x 1 5.37 0.313 0.313 3.069 2.34 2.25 DVE"KLAMT) TG , ! 5 ( '° - \ — _ 50 CW0.JNEL T : A ssvME• L7 = 0.23 A — 1) — 1 (? (s6 — 0. y 5 2, 2 GO = O. o 7 F /G. 18 Gvr:E.trbic-c Q = s, Z � T _9. = 9 2_ e �S = 2.31 Tp 5 o , 5 FT. T – L = 3ya " 174 se = 2.87 mini, y �. T 2•, fps —� To TI C.. T[. = 2 ;- S"T = 5, 37 ki,ns. CHECK : I se E 5.31 = 3, 0 7 / HP.. Q = cI A = (o 2I3)(�.ar')(2.34) — Z..' -5 c. s = Z.2 ct� l ASSvI-tp-rJOr3 ar b = 0 IS OK Quick TR -55 Ver.5.45 S/N:1315460151 Executed: 18:10:55 12 -08 -1993 Time Hours 0.006 0.590 1.173 1.756 Ridgemont Estates North - 3rd Addition Basin 3B, flow to low point of Renz Drive 10 -year storm * * ** Modified Rational Hydrograph * * * ** Weighted C = 0.313 Area = 2.336 acres Tc = 5.37 minutes Adjusted C = 0.313 Td= 100.00 min. 1= 0.48 in /hr RETURN FREQUENCY: 10 year storm Adj.factor = 1.00 Output file: REN -3B .HYD Time increment = 0.083 Hours Time on left represents time for first Q in each row. 0.02 0.35 0.35 0.00 HYDROGRAPH FOR MAXIMUM STORAGE For the 10 Year Storm 0.35 0.35 0.35 0.35 0.35 0.35 0.35 0.35 0.35 0.35 0.35 0.35 Qp= 0.35 0.35 0.35 0.35 cfs 0.35 0.35 0.33 RrJ -35 Quick TR -55 Ver.5.45 S/N:1315460151 Executed: 18:10:55 12 -08 -1993 Weighted `C' 0.313 0.313 0.313 0.313 0.313 0.313 0.313 0.313 MODIFIED RATIONAL METHOD - - -- Summary for Single Storm Frequency - - -- First peak outflow point assumed to occur at inflow recession leg. RETURN FREQUENCY: Adjusted 'C' Ridgemont Estates North - 3rd Addition Basin 3B, flow to low point of Renz Drive 10 -year storm 10 yr `C' Adjustment = 1.000 Allowable Q = 0.00 cfs Hydrograph file duration= 100.00 minutes Hydrograph file: REN -3B .HYD 0.313 0.313 0.313 0.313 0.313 0.313 0.313 0.313 Duration Intens. Areas minutes in /hr acres 5 10 15 20 30 40 50 60 3.069 2.240 1.770 1.450 1.040 0.820 0.680 0.610 2.34 2.34 2.34 2.34 2.34 2.34 2.34 2.34 Qpeak cfs 2.25 1.64 1.30 1.06 0.76 0.60 0.50 0.45 Tc = 5.37 minutes VOLUMES Inflow Storage (cu.ft.) (cu.ft.) 724 984 1,166 1,274 1,371 1,441 1,494 1,608 724 984 1,166 1,274 1,370 1,441 1,493 1,607 ***************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** Storage Maximum 0.313 0.313 100 0.480 2.34 0.35 I 2,109 2,108 ********************************************* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** 3C Quick TR -55 Ver.5.45 S/N:1315460151 Executed: 15:56:57 12 -09 -1993 Ridgemont Estates North - 3rd Addition Basin 3C, flow to low point of Renz Drive 10 -year storm * * * * * * SUMMARY OF RATIONAL METHOD PEAK DISCHARGES * * * * * * Q = adj * C * I * A Where: Q =cfs, C= Weighted Runoff Coefficient, I =in /hour, A =acres adj = 'C' adjustment factor for each return frequency Subarea Runoff Area Tc Descr. 'C' acres (min) Pervious 0.150 2.41 Impervious 0.900 0.37 O JIJet- T� : Wtd. 'C' RETURN FREQUENCY = 10 years `C' adjustment, k = 1 Adj. 'C' = Wtd.'C' x 1 Adj. 'C' I Total Peak Q in /hr acres (cfs) 10.74 0.250 0.250 2.162 2.78 1.51 OUEf 6Zo (0.4 J.AND T : ,IS ores — B, 4`r Hi►.). ASSUME D = o, Zo :. Fr- 36 Z12-50 / , o 00/ FIG. 18 Gu a ,JES - i. Q = , .- . - v= c I. S C'�S o.'IZ �T - 2 . 06 fr- 288L.F v Loa {. X38 rec. = 2.30 ,i►.1. rc — � TorAL Tc = 8 ,44+ 2.3 0 = I o .'7 4 r- A(u CHCCt - ; _ t c.74 M.F.! . _ . .. / Q CIA f.EI 0_4's ASSUPe■PTon.1 OF D = 0.2_0 I 0 K 3C Quick TR -55 Ver.5.45 S/N:1315460151 Executed: 15:56:57 12 -09 -1993 * * ** Modified Rational Hydrograph * * * ** Weighted C = 0.250 Area= 2.783 acres Tc = 10.74 minutes Adjusted C = 0.250 Td= 100.00 min. I= 0.48 in /hr Qp= 0.33 cfs RETURN FREQUENCY: 10 year storm Adj.factor = 1.00 Output file: REN -3C .HYD Time Hours 0.012 0.596 1.179 1.762 Ridgemont Estates North - 3rd Addition Basin 3C, flow to low point of Renz Drive 10 -year storm Time increment = 0.083 Hours Time on left represents time for first Q in each row. 0.02 0.33 0.33 0.16 HYDROGRAPH FOR MAXIMUM STORAGE For the 10 Year Storm 0.18 0.33 0.33 0.00 0.33 0.33 0.33 0.33 0.33 0.33 0.33 0.33 0.33 0.33 0.33 0.33 0.33 0.33 0.31 T-a -3G Quick TR -55 Ver.5.45 S/N:1315460151 Executed: 15:56:57 12 -09 -1993 First peak outflow point assumed to occur at inflow recession leg. RETURN FREQUENCY: Hydrograph file duration= 100.00 minutes Hydrograph file: REN -3C .HYD Weighted 'C' 0.250 0.250 0.250 0.250 0.250 0.250 0.250 Adjusted 'C' 0.250 0.250 0.250 0.250 0.250 0.250 0.250 MODIFIED RATIONAL METHOD - - -- Summary for Single Storm Frequency - - -- Ridgemont Estates North - 3rd Addition Basin 3C, flow to low point of Renz Drive 10 -year storm 10 yr `C' Adjustment = 1.000 Allowable Q = 0.00 cfs Duration Intens. Areas minutes in /hr acres 11 15 20 30 40 50 60 2.162 1.770 1.450 1.040 0.820 0.680 0.610 2.78 2.78 2.78 2.78 2.78 2.78 2.78 Qpeak cfs 1.51 1.23 1.01 0.72 0.57 0.47 0.42 Tc = 10.74 minutes VOLUMES Inflow Storage (cu.ft.) (cu.ft. 970 1,109 1,212 1,304 1,371 1,421 1,529 970 1,109 1,212 1,304 1,371 1,421 1,529 ***************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** Storage Maximum 0.250 0.250 100 0.480 2.78 0.33 I 2,006 2,005 ********************************************* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** po i -3D Quick TR -55 Ver.5.45 S/N:1315460151 Executed: 18:34:45 12 -08 -1993 Ridgemont Estates North - 3rd Addition Basin 3D, flow to south end of culvert @ low point of Renz Drive 10 -year storm * * * * * * SUMMARY OF RATIONAL METHOD PEAK DISCHARGES * * * * * * Q = adj * C * I * A Where: Q =cfs, C= Weighted Runoff Coefficient, I =in /hour, A =acres adj = 'C' adjustment factor for each return frequency Subarea Runoff Area Tc Wtd. Descr. 'C' acres (min) 'C' Pervious 0.150 1.32 RETURN FREQUENCY = 10 years `C' adjustment, k = 1 Adj. 'C' = Wtd.'C' x 1 Adj. 'C' I Total Peak Q in /hr acres (cfs) 2.98 0.150 0.150 3.180 1.32 0.63 / " = ovr , )D T . ,Is i ! 1S � C _ 4) ) J 1,33 Mlles yo ,i0 : A ;u,.te = 0.30 FT. :t DITCH A = I fz a. D - 1t2(3)(o,30)2-_ 0.f35 Fr!" 2 _ 3 00 n - ,03 1 J :tJtJ ,—+ C� s 0. G0 "fS ,a= 0.073 F1U. 16 v = 0,,36 Fr - = .. T T = b = 440 I:F - 99 s�� = 1.6,s h, ►►,I. V TOTAL TC = 1.33 + 1. (4 = 2.98 NuN. cMECK: =10 :: 2 �8 Mia. = 3.It3 " /t{►�, q = CIA O. 63. cfs O. c f c .•, AS .SuMVno'3 OF 1= o. .0 Fr. 1 p Quick TR -55 Ver.5.45 S/N:1315460151 I Executed: 18:34:45 12 -08 -1993 Ridgemont Estates North - 3rd Addition U Basin 3D, flow to south end of culvert @ low point of Renz Drive 10 -year storm * * ** Modified Rational Hydrograph * * * ** I Weighted C = 0.150 Area 1.322 acres Tc = 2.98 minutes Adjusted C = 0.150 Td= 100.00 min. I= 0.48 in /hr Qp= 0.10 cis I RETURN FREQUENCY: 10 year storm Adj.factor = 1.00 Output file: REN -3D .HYD 1 HYDROGRAPH FOR MAXIMUM STORAGE For the 10 Year Storm ' Time Time increment = O.O83 Hours Hours Time on left represents time for first Q in each row. ' 0.050 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.633 0.10 0.10 0.10 0.10 0.10 0.10 0.10 1.216 0.10 0.10 0.10 0.10 0.10 0.10 0.00 1 1 1 1 1 1 1 1 1 1 1 Quick TR -55 Ver.5.45 S/N:1315460151 Executed: 18:34:45 12 -08 -1993 Weighted `C' 0.150 0.150 0.150 0.150 0.150 0.150 0.150 '0.150 First peak outflow point assumed to occur at inflow recession leg. Ridgemont Estates North - 3rd Addition Basin 3D, flow to south end of culvert @ low point of Rene Drive 10 -year storm RETURN FREQUENCY: 10 yr Hydrograph file duration= 100.00 minutes Hydrograph file: REN -3D .HYD Adjusted 'C' 0.150 0.150 0.150 0.150 0.150 0.150 0.150 0.150 MODIFIED RATIONAL METHOD - - -- Summary for Single Storm Frequency - - -- Duration Intens. Areas minutes in /hr acres 3 10 15 20 30 40 50 60 `C' Adjustment = 1.000 Allowable Q = 0.00 cfs 3.180 2.240 1.770 1.450 1.040 0.820 0.680 0.610 1.32 1.32 1.32 1.32 1.32 1.32 1.32 1.32 Qpeak cfs 0.63 0.44 0.35 0.29 0.21 0.16 0.13 0.12 Tc = 2.98 minutes VOLUMES Inflow Storage ( cu.ft.) (cu.ft.) 113 267 316 345 371 390 405 435 113 266 316 345 371 390 404 435 ***************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** Storage Maximum 0.150 0.150 100 0.480 1.32 0.10 1 571 570 ********************************************* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** Quick TR -55 Ver.5.45 S/N:1315460151 Executed: 16:28:15 12 -09 -1993 Ridgemont Estates North - 3rci Addition Basin 3E, flow to large drainage easement via east end of Radco Ct 10 -year storm * * * * * * SUMMARY OF RATIONAL METHOD PEAK DISCHARGES * * * * * * Q = adj * C * 1 * A Where: Q =cfs, C= Weighted Runoff Coefficient, I =in /hour, A =acres adj = 'C' adjustment factor for each return frequency Subarea Runoff Area Tc Wtd. Adj. I Total Peak Q Descr. 'C' acres (min) 'C' 'C' in /hr acres (cfs) Pervious 0.150 1.01 Impervious 0.900 0.60 overI - , - i> T 6.10 0.427 0.427 2.859 1.61 1.97 X 95 (0.4i ! " Ya,ro5 chWNNEG -- Tc : Assume:: r. = o.9 RETURN FREQUENCY = 10 years 'C' adjustment, k = 1 Adj. 'C' = Wtd.'C' x 1 = 2. (02MI,4 A ' /2- a - — I / (=G) 0.92_ Fi• Z _ ro n = otl S = 0 Fig l a „ - -> Q = 2. o aTs V =_' 2.oG'es = ofi. Fr y.r18 �p� T-r = L 580 Lt `05 S` = ?.'f 13 HIl..1 L •ia -f r n - T ?,b 2t ? t3 = C,.10 0-41ecx.. C L ( I O ,itA.= Z.8 ( " / H i Q =CIA = L9 r/ o c--'s ASfvMPTtO!'4 of = o;o Is pov-2E Quick TR -55 Ver.5.45 S/N:1315460151 Executed: 16:28:15 12 -09 -1993 Ridgemont Estates North - 3rd Addition Basin 3E, flow to large drainage easement via east end of Radco Ct 10 -year storm * * ** Modified Rational Hydrograph * * * ** Weighted C -= 0.427 Area= 1.611 acres Tc = 6.10 minutes Adjusted C = 0.427 Td= 100.00 min. I= 0.48 in /hr Qp= 0.33 cfs RETURN FREQUENCY: 10 year storm Adj.factor = 1.00 Output file: REN -3E .HYD Time Hours 0.018 0.602 1.185 1.768 Time increment = 0.083 Hours Time on left represents time for first Q in each row. 0.06 0.33 0.33 0.00 0.33 0.33 0.33 HYDROGRAPH FOR MAXIMUM STORAGE For the 10 Year Storm 0.33 0.33 0.33 0.33 0.33 0.33 0.33 0.33 0.33 0.33 0.33 0.33 0.33 0.33 0.27 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Quick TR -55 Ver.5.45 S/N:1315460151 Executed: 16:28:15 12 -09 -1993 Weighted `C' 0.427 0.427 0.427 0.427 0.427 0.427 0.427 0.427 MODIFIED RATIONAL METHOD - - -- Summary for Single Storm Frequency - - -- First peak outflow point assumed to occur at inflow recession leg. Ridgemont Estates North - 3rd Addition Basin 3E, flow to large drainage easement via east end of Radco Ct 10 -year storm RETURN FREQUENCY: 10 yr Hydrograph file duration= 100.00 minutes Hydrograph file: REN -3E .HYD Adjusted 'C' 0.427 0.427 0.427 0.427 0.427 0.427 0.427 0.427 `C' Adjustment = 1.000 Allowable Q = 0.00 cfs Duration Intens. Areas minutes in /hr acres 6 10 15 20 30 40 50 60 2.859 2.240 1.770 1.450 1.040 0.820 0.680 0.610 1.61 1.61 1.61 1.61 1.61 1.61 1.61 1.61 Qpeak cfs 1.97 1.54 1.22 1.00 0.72 0.56 0.47 0.42 Tc = 6.10 minutes VOLUMES Inflow Storage (cu.ft.) ( cu.ft.) 721 926 1,097 1,198 1,289 1,355 1,405 1,512 721 925 1,097 1,198 1,289 1,355 1,405 1,512 ***************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** Storage Maximum 0.427 0.427 100 0.480 1.61 0.33 I 1,983 1,983 ********************************************* * * * * * * * * * * * * * * ** * * * * * * * * * * * * * ** Na4-4C Quick TR -55 Ver.5.45 S/N:1315460151 Executed: 15:01:26 12 -14 -1993 * * * * * * SUMMARY OF RATIONAL METHOD PEAK DISCHARGES * * * * * Subarea Descr. Q = adj * C * I * A Where: Q =cfs, C= Weighted Runoff Coefficient, I =in /hour., A =acres adj = 'C' adjustment factor for each return frequency Runoff 'C' Area acres Pervious 0.150 1.98 Impervious 0.900 0.56 Ridgemont Estates North - 4th Addition Basin 4C, flow to low point 6 +50 of Radco Drive 10 -year storm c Iyci 1tJEL Tc Tc (min) ( zo( )0. ' r1. /e.,t, 0.005 RETURN FREQUENCY = 10 years `C' adjustment, k = 1 Adj. 'c' = Wtd.'C' x 1 Wtd. Adj. I Total Peak Q 'C' 'C' in /hr acres (cfs) 13.25 0.315 0.315 1.911 2.53 1.53 ASSUME 1)= o.2 -I F A '/Z = 1 12_ (36 o,7 y FT. 3 ,0 — 5. O n 160 ,_i.J 0,006, fl . 1 e , 'GvtDEWJES . =, v Q �` a, l9FrL 1 -r r= T-r = _ 15 a L,_ _ — v ,. yu cis 79 SEC — 1.32 MI,J - ToTAL T = 11.93 + 1 , 7 , = - 13,?5 ri ir+1. - : rib Q = C = A — 1,53 c.-P-s. 1.5 cfs A uMrria-3 oF D = 0,21 Fr, rs oK - A-C Quick TR -55 Ver.5.45 S/N:1315460151 Executed: 15:01:26 12 -14 -1993 Time Hours 0.054 0.637 1.221 1.804 Ridgemont Estates North - 4th Addition Basin 4C, flow to low point 6 +50 of Radco Drive 10 -year storm * * ** Modified Rational Hydrograph * * * ** Weighted C = 0.315 Area= 2.535 acres Tc = 13.25 minutes Adjusted C = 0.315 Td= 100.00 min. I= 0.48 in /hr Qp= 0.38 cfs RETURN FREQUENCY: 10 year storm Adj.factor = 1.00 Output file: REN -4C .HYD HYDROGRAPH FOR MAXIMUM STORAGE For the 10 Year Storm Time increment = 0.083 Hours Time on left represents time for first Q in each row. 0.09 0.38 0.38 0.14 0.24 0.38 0.38 0.00 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.29 go- Quick TR -55 Ver.5.45 S/N:1315460151 Executed: 15:01:26 12 -14 -1993 RETURN FREQUENCY: Weighted `C' 0.315 0.315 0.315 0.315 0.315 0.315 0.315 Adjusted 'C' 0.315 0.315 0.315 0.315 0.315 0.315 0.315 MODIFIED RATIONAL METHOD - - -- Summary for Single Storm Frequency - - -- First peak outflow point assumed to occur at inflow recession leg. Ridgemont Estates North - 4th Addition Basin 4C, flow to low point 6 +50 of Radco Drive 10 -year storm 10 yr `C' Adjustment = 1.000 Allowable Q = 0.00 cfs Hydrograph file duration= 100.00 minutes Hydrograph file: REN -4C .HYD Duration Intens. Areas minutes in /hr acres 13 15 20 30 40 50 60 1.911 1.770 1.450 1.040 0.820 0.680 0.610 2.53 2.53 2.53 2.53 2.53 2.53 2.53 Qpeak cfs 1.53 1.42 1.16 0.83 0.66 0.54 0.49 Tc = 13.25 minutes VOLUMES Inflow Storage (cu.ft.) (cu.ft.) 1,215 1,274 1,391 1,497 1,573 1,631 1,756 1,215 1,274 1,391 1,496 1,573 1,631 1,755 ***************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** Storage Maximum 0.315 0.315 100 0.480 2.53 0.38 1 2,303 2,302 ********************************************* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** Fcn)z Quick TR -55 Ver.5.45 S/N:1315460151 Executed: 14:33:26 12 -08 -1993 Renz Subdivision /original Ridgemont Estates modification of 1975 stormwater runoff calculations "Zone A ", 50 -year storm * * * * * * SUMMARY OF RATIONAL METHOD PEAK DISCHARGES * * * * * * Q = adj * C * I * A • Where: Q =cfs, C= Weighted Runoff Coefficient, I =in /hour, A= acres adj = 'C' adjustment factor for each return frequency Subarea Runoff Area Tc Wtd. Adj. 1 'Total Peal: Q Descr. 'C' acres (min) 'C' 'C' in /hr acres (cfs) Composite 0.300 8.60 8.50 0.300 0.300 3.500 8.60 9.03 DR.--A Fo is i FP-a n5 c., .uLF.-To I FS fJ 1_El �? — A 7NRo ri z— RETURN FREQUENCY = 50 years `C' adjustment, k = 1 Adj. 'C' = Wtd.'C' x 1 1 1 1 1 1 1 1 1 1 1 1 t 1. 1 1 1 1 Quick TR -55 Ver.5.45 Executed: 14:33:26 Time Hours 0.058 0.642 1.225 1.808 0.72 1.75 1.75 0.00 S/N:1315460151 12 -08 -1993 Renz Subdivision /original Ridgemont Estates modification of 1975 stormwater runoff calculations "Zone A ", 50 -year storm * * ** Modified Rational Hydrograph * * * ** Weighted C.= 0.300 Area= 8.600 acres Tc = 8.50 minutes Adjusted C = 0.300 Td= 100.00 min. I= 0.68.in /hr Qp= 1.75 cfs RETURN FREQUENCY: 50 year storm Adj.factor = 1.00 Output file: RENZ -A .HYD 1.75' 1.75 1.75 HYDROGRAPH FOR MAXIMUM STORAGE For the 50 Year Storm Time increment.= 0.083 Hours Time on left represents time for first Q in each row. 1.75 1.75 1.75 1.75 1.75. 1.75 1.75 ,1.75 1.75 1.75 1.75 1.75 1.75 1.75 1.03 1 1 1 1 1 1 1 1 1 , 1 1 1 1 r oz. -A Quick TR -55 Ver.5.45 S/N:1315460151 Executed: 14:33:26 '12 -08 -1993 MODIFIED RATIONAL_ METHOD - - -- Summary for Single Storm Frequency - - -- First peak outflow point assumed to occur at inflow recession leg. Rene Subdivision /original Ridgemont Estates modification of 1975 stormwater runoff calculations "Zone A ", 50 -year storm . RETURN FREQUENCY: 50 yr `C' Adjustment = 1.000 Allowable Q = 0.00 cfs ' Hydrograph file duration= 100.00 minutes Hydrograph file: RENZ -A .HYD Tc = 8.50 minutes VOLUMES I Weighted Adjusted Duration Intens. Areas Qpeak Inflow Storage `C' 'C' minutes in /hr acres cfs ( cu.ft.) (cu.ft.) ' 0.300 0.300 9 3.500 8.60 9.03 4,605 4,605 0.300 0.300 10 • 3.200 8.60 8.26 4,954 4,554 0.300 0.300 15 2.460 8.60 6.35 5,712 5,712 0.300 0.300 20 1.980 8.60 5.11 6,130 6,130 I 0.300 0.300 30 1.460 8.60 3.77 6,780 6,780 0.300 0.300 40 1.180 8.60 3.04 7,307 7,306 0.300 0.300 50 1.000 8.60 2.58 7,740 7,740 ' 0.300 0.300 60 0.880 8.60 2.27 8,173 8,173 ***************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** storage Maximum 0.300 0.300 100 0.680 8.60 1.75 I 10,526 10,526 ********************************************* * * * * * * * * * * * * * * * * * ** * * * ** * * *a * ** Quick TR -55 Ver.5.45 S/N:1315460151 Executed: 14:37:14 12 -08 -1993 Renz Subdivision /original Ridgemont Estates modification of 1975 stormwater runoff calculations "Zone B ", 50 -year storm * * * * * * SUMMARY OF RATIONAL METHOD PEAK DISCHARGES * * * R * * Q = adj * C * I * A- Where: Q =cfs, C= Weighted Runoff Coefficient, I =in /hour, A =acres -adj = 'C' 'adjustment factor for each return frequency Subarea Runoff Area • Tc Wtd. Adj. I Total Peak Q Descr. 'C' acres (min) 'C' 'C' in /hr acres (cfs) Composite 0.450 2.50 pk Fr-- 1 - 1 191 5 eA.cS. RETURN FREQUENCY = 50 years `C' adjustment, k = 1 Adj. 'C' = Wtd.'C' x 1 5.80 0.450 0.450 4.250 2.50 4.78 �NZ -B Quick TR -55 Ver.5.45 S/N:1315460151 Executed: 14:37:14 12 -08 -1993 Renz Subdivision /original Ridgemont Estates modification of 1975 stormwater runoff. calculations "Zone B ", 50 -year storm * * ** Modified Rational Hydrograph * * * ** Weighted C = 0.450 Area= 2.500 acres Tc = 5.80 minutes Adjusted C = 0.450 Td= 100.00 min. I= 0.68 in /hr • Qp= 0.76 cfs RETURN FREQUENCY: 50 year storm Adj.factor = 1.00 Output file: RENZ -B .HYD HYDROGRAPH FOR MAXIi4UM STORAGE For the 50 Year Storm Time Hours Time increment = 0.083 Hours Time on left represents time for first Q in each row. 0.013 0.11 0.76 0.76 0.76 0.76 0.76 0.76 0.597 0.76 0.76 0.76 0.76 0.76 0.76 0.76 1.180 0.76 0.76 0.76 0.76 0.76 0.76 0.66 1.763 0.00 &iJZ - Quick TR -55 Ver.5.45 S/N:1315460151 Executed: 14:37:14 12 -08 -1993 Weighted `C' 0.450 0.450 0.450 0.450 0.450 0.450 0.450 0.450 MODIFIED RATIONAL. METHOD - - -- Summary for Single Storm Frequency - - -- First peak outflow point assumed to occur at inflow recession leg. Renz Subdivision /original Ridgemont Estates modification of 1975 stormwater runoff calculations "Zone 8 ", 50 -year storm RETURN FREQUENCY: 50 yr Hydrograph file duration= 100.00 minutes Hydrograph file: RENZ -B .HYD Adjusted 'C' 0.450 0.450 0.450 0.450 0.450 0.450 0.450 0.450 `C' Adjustment = 1.000 Allowable Q = 0.00 cfs Duration Intens. Areas minutes in /hr acres 6 .10 15 20 30 40 50 60 4.250 3.200 2.460 1.980 1.460 1.180 1.000 0.880 2.50 2.50 2.50 ' 2.50 2.50 2.50 .2.50 2.50 Qpeak cfs 4.78 3.60 2.77 2.23 1.64 1.33 1.13 0.99 Tc = 5.80 minutes . VOLUMES Inflow Storage (cu.ft.) ( cu.ft.) • 1,664 2,160 2,491 2,673 2,957 3,186 3,375 3,564 1,664 2,160 2,491 2,673 2,956 3,186 3,375 3,564 ***************************** * * * * * * * * * * ** * * ** * * * * * ** * * * * * * ** storage Maximum 0.450 0.450 100 0.680 2.50 0.76 1 4,590 4,589 REb) Z -C. Quick TR -55 Ver.5.45 S/N:1315460151 Executed: 14:40:38 12 -08 -1993 Renz Subdivision /original Ridgemont Estates modification of 1975 stormwater runoff calculations "Zone C ", 50 -year storm * * * * * * SUMMARY OF RATIONAL METHOD PEAK DISCHARGES * * * * * k Q = adj * C * I * A Where: Q =cfs, C= Weighted Runoff Coefficient, I =in /hour, A =acres adj = 'C' adjustment factor for each return frequency Subarea Runoff Area Tc Wtd. Adj. I Total Peak Q Descr. 'C' acres (min) 'C' 'C' in /hr acres (cEs) Composite 0.550 0.40 2.90 0.550 0.550 4.570 0.40 1.01 DATA r1 19'l S CA L-c S RETURN FREQUENCY = 50 years `C' adjustment, k = 1 Adj. 'C' = Wtd.'C' x 1 KEt4Z C- Quick TR -55 Ver.5.45 S/N:1315460151 Executed: 14:40:38 12 -08 -1993 * * ** Modified Rational,Hydrograph * * * ** Weighted C = 0.550 Area= 0.400 acres Tc = 2.90 minutes Adjusted C = 0.550, Td= 100.00 min.: I =.0.68 in /hr Qp= 0.15 cfs RETURN FREQUENCY: 50 year storm Adj.factor = 1.00 Output file: RENZ -C .HYD HYDROGRAPH FOR MAXIMUM STORAGE For the 50 Year Storm Time Time increment = 0.083 Hours Hours Time on left represents time for first Q in each row. 0.048 0.632 1.215 Benz Subdivision /original Ridgemont Estates modification of 1975 stormwater runoff calculations "Zone_C ", 50 -year storm 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.00 Quick TR -55 Ver.5.45 S/N:1315460151 Executed: 14:40:38 12 -08 -1993 MODIFIED RATIONAL METHOD - - -- Summary for Single Storm Frequency - - -- First peak outflow point assumed to occur at inflow recession leg. Renz Subdivision /original Ridgemont Estates modification of 1975 stormwater runoff calculations "Zone C ", 50 -year storm RETURN FREQUENCY: 50 yr `C' Adjustment = 1.000 Allowable Q = 0.00 cfs Hydrograph file duration= 100.00 minutes Hydrograph file: RENZ -C .HYD Tc = 2.90 minutes VOLUMES Weighted Adjusted Duration Intens. Areas Qpeak Inflow Storage `C' 'C' minutes in /hr acres cfs (cu.ft.) (cu.ft.) 0.550 0.550 3 4.570 0.40 1.01 175 175 0.550 0.550 10 3.200 0.40 0.70 422 422 0.550 0.550 15 2.460 0.40 • 0.54 487 487 0.550 0.550 20 1.980 0.40 0.44 523 523 0.550 0.550 30 1.460 0.40 0.32 578 578 0.550 0.550 • 40 1.180 0.40 0.26 623 623 0.550 0.550 50 1.000 0.40 0.22 660 660 0.550 0.550 60 0.880 0.40 0.19 697 697 ***************************** * ** * * * * * * * * * * * * * * * * ** * * * * * ** * ** Storage Maximum 0.550 0.550 100 0.680 0.40 0.15 I 898 897 Quick TR -55 Ver.5.45 S/N:1315460151 Executed: 14:43:58 12 -08 -1993 Renz Subdivision /original Ridgemont Estates modification of 1975 stormwater runoff calculations "Zone D ", 50 -year storm * * * * * * SUMMARY OF RATIONAL METHOD PEAK DISCHARGES * * * * x * Q = adj * C * I * A Where: Q =cfs, C= Weighted Runoff Coefficient, I= in /hour,,A =acres adj = 'C' adjustment factor for each return frequency Subarea Runoff Area Tc Wtd. Adj. I Total Peak Q Descr. 'C' acres (min) 'C' 'C' in /hr acres (cfs) Composite 0.450. 3.50 Dt*'l FROM 15 '1 5 CA RETURN FREQUENCY = 50. years `C' adjustment, k = 1 Adj. 'C' = Wtd.'C' x 1 8.00 0.450 0.450 3.600 3.50 5.67 P- �NZ - l 7 Quick•TR -55 Ver.5.45 S/N:1315460151 • Executed: 14:43:58 12 -08 -1993 Time Hours 0.050 0.633 1.217 1.800 Renz Subdivision /original Ridgemont Estates modification of 1975 stormwater runoff calculations "Zone D ", 50 -year storm * * ** Modified Rational Hydrograph * * * ** Weighted C = 0.450 Area= 3.500 acres Tc = . 8.00 minutes Adjusted C = 0.450 Td= 100.00 min. I= 0.68 in /hr Qp= 1.07 cts RETURN FREQUENCY: 50 year storm Adj.factor = 1.00 Output file: RENZ -D .HYD HYDROGRAPH FOR MAXIMUM STORAGE For the 50 Year Storin • Time increment = 0.083 Hours Time on left represents time for first Q in each row. 0.40 1.07 1.07 0.00 1.07 1.07 1.07 1.07 1.07 1.07 1.07 1.07 1.07 1 -07 1.07 1.07 1.07 1.07 1.07 1.07 1.07 0.67 Kewz..-t Quick TR -55 Ver.5.45 S/N:1315460151 Executed: 14:43:58 12 -08 -1993 First peak outflow point assumed to occur at inflow recession leg. Renz Subdivision /original Ridgemont Estates modification of 1975 stormwater runoff calculations "Zone D ", 50 -year storm RETURN FREQUENCY: 50 yr Weighted `C' 0.450 0.450 0.450 0.450 0.450 0:450 0.450 0.450 Hydrograph file duration= 100.00 minutes Hydrograph file: RENZ -D .HYD Adjusted 'C' 0.450 0.450 0.450 0.450 0.450 0.450 0.450 0.450 MODIFIED RATIONAL METHOD ' - - -- Summary for Single Storm Frequency - - -- Duration Intens. Areas minutes in /hr acres' 8 10 15 20 30 40 50 60 `C' Adjustment = 1.000 Allowable Q = 0.00 cfs 3.600 3.200 2.460 1.980 1.460 1.180 1.000 0.880 3.50 3.50 3.50 3.50 3.50 3.50 3.50 3.50 Qpeak cfs 5.67 5.04 3.87 3.12 2.30 1.86 1.57 1.39 Tc = 8.00 minutes VOLUMES Inflow Storage (cu.ft.) (cu.ft.) 2,722 3,024 3,487 3,742 4,139 4,460 4,725 4,990 2,722 3,024 3,487 3,742 4,139 4,460 4,725 4,989 ***************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** Storage Maximum 0.450 0.450 100 0.680 3.50 1.07 I 6,426 6,425 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 p1 Quick TR -55 Ver.5.45 S/N:1315460151 Executed: 14:46:23 12 -08 -1993 Renz Subdivision /original Ridgemont Estates modification of 1975 stormwater runoff calculations "Zone E ", 50 -year storm * * * * * * SUMMARY OF RATIONAL METHOD PEAK DISCHARGES * * * * * * Q = adj * C * I * A Where: Q =cfs, C= Weighted Runoff Coefficient, I=in/hour, A=acres adj = 'C' adjustment factor for each return frequency Subarea Runoff Area Tc Wtd. Adj. I Total Peak Q Descr. 'C' acres (min) 'C' 'C' in /hr acres (cfs) Composite 0.400 5.20 DATA FROM 1915 CALLS RETURN FREQUENCY = 50 years `C' adjustment, k = 1 Adj. 'C' = Wtd.'C' x 1 8.80 0.400 0.400 3.440 5.20 7.16 I Quick Quick TR -55 Ver.5.45 S/N:1315460151 Executed: 14:46:23 12 -08 -1993 Time Hours 0.063 0.647 1.230 1.813 Renz Subdivision /original Ridgemont Estates modification of 1975 stormWater runoff calculations "Zone E ", 50 -year storm * * ** Modified Rational Hydrograph * * * ** Weighted C = 0.400 Area= 5. acres Tc = 8.80 minutes Adjusted .0 = 0.400 Td= 100.00 min. I= 0.68 in /hr Qp= 1.41 cfs RETURN FREQUENCY: 50 year storm Adj.factor = 1.00 Output file: -E .HYD 0.61 1.41 1.41 0.00 HYDROGRAPH FOR MAXIMUM STORAGE For the 50 Year Storm Time increment = 0.083 Hours Time on left represents time for first Q in each row. 1.41 1.41 0.80 Quick TR -55 Ver.5.45 S/N:1315460151 Executed: 14:46:23 12 -08 -1993 RETURN FREQUENCY: 50 yr Hydrograph file duration= 100.00 minutes Hydrograph file: RENZ -E .HYD Weighted `C' 0.400 0.400 0.400 0.400 0.400 0.400 0.400 0.400 First peak outflow point assumed to occur at inflow recession leg. Renz Subdivision /original Ridgemont Estates modification of 1975 stormwater runoff calculations ' "Zone E ", 50 -year storm Adjusted 'C' 0.400 0.400 0.400 0.400 0.400 0.400 0.400 0.400 MODIFIED RATIONAL METHOD - - -- Summary for Single Storm Frequency - - -- 9 10 15 20 30 40 50 60 `C' Adjustment = 1.000 Allowable Q = 0.00 cfs Duration Intens. Areas minutes in /hr acres 3.440 3.200 2.460 1.980 1.460 1.180 1.000 0.880 5.20 5.20 5.20 5.20 5.20 5.20 5.20 5.20 Qpeak cfs 7.16 6:66 5.12 4.12 3.04 2.45 2.08 1.83 Tc = 8.80 minutes VOLUMES Inflow Storage (cu.ft.) (cu.ft.) 3,778 3,994 4,605 4,942 5,466 5,891 6,240 6,589 3,778 3,994 4,605 4,942• 5,166 • 5;890 6,240 6,589 ***************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** Storage Maximum 0.400 0.400 100 0.680 5.20 1.41 I 8,486 8,486 Rz -0.JZ— F Quick TR -55 Ver.5.45 S/N:1315460151 Executed: 15:00:17 12 -08 -1993 Renz Subdivision /original Ridgemont Estates modification of 1975 stormwater runoff calculations "Zone F ", 50 -year storm * * * * * * SUMMARY OF RATIONAL METHOD PEAK DISCHARGES * * * * * * Q = adj * C * I .* A Where: Q =cfs, C= Weighted Runoff Coefficient, I =in /hour, A =acres adj = 'C' adjustment factor for each return frequency Subarea Runoff Area Tc Wtd. Adj. I Total Peak Q Descr. 'C' acres (min) 'C' 'C' in /hr acres (cfs) Composite 0.400 3.50 9.20 0.400 0.400 3.360 3.50 4.70 DATA FPoM ISIS CALCS RETURN FREQUENCY = 50 years `C' adjustment, k = 1 Adj. 'C' = Wtd.'C' x 1 1 1 1 FENZ F Quick TR -55 Ver.5.45 5/N:1315460151 Executed: 15:00:17 12 -08 -1993 * * ** Modified Rational Hydrograph * * * ** Weighted C = 0.400 Area = 3.500 acres Pc = 9.20 minutes Adjusted C = 0.400 . Td= 100.00 min. I= 0.68 in /hr Qp= 0.95 cfs RETURN FREQUENCY: 50 year storm Adj.factor = 1.00 Output file: RENZ -F .HYD Time Hours 0.070 0.653 1.237 1.820 . Renz Subdivision /original Ridgemont Estates modification of 1975 stormwater runoff calculations "Zone F ", 50 -year storm Time increment = 0.083 Hours Time on left represents time for first Q in each row. 0.43 0.95 0.95 0.00 0.95 0.95 0.95 HYDROGRAPH FOR MAXIMUM STORAGE For the 50 Year Storm 0:95 0.95 0.95 0.95 0.95 0.95 0.95 0.95 0.95 0.95 0.95 0.95 0.95 0.95 0.52 �raZ F Quick TR -55 Ver.5.45 S/N:1315460151 Executed: 15:00:17 12 -08 -1993 • First peak outflow point assumed to occur at inflow recession leg. Renz Subdivision /original Ridgemont Estates modification of 1975 stormwater runoff calculations "Zone F ", 50- storm RETURN FREQUENCY: 50 yr Hydrograph file duration = 100.00 minutes Hydrograph file: RENZ -F .HYD Weighted `C' 0.400 .0.400 0.400 0.400 0.400 0.400 0.400 0.400 Adjusted 'C' 0.400 0.400 0.400 0.400 0.400 0.400 0.400 0.400 MODIFIED RATIONAL METHOD - - -- Summary for Single Storm Frequency - - -- Duration Intens. Areas minutes in /hr acres 9 10 15 20 30 40 50 60 `C' Adjustment = 1.000 Allowable Q = 0.00 cfs 3.360 3.200 2.460 1.980 1.460 1.180 1.000 0.880 3.50 3.50 3.50 3.50 3.50 3.50 3.50 : 3.50 Qpeak cfs 4.70 4.48 3.44 2.77 2.04 .1.65 1.40 1.23 Tc = 9.20 minutes VOLUMES Inflow Storage ( cu.ft.) (cu.ft.) 2,597 2,688 3,100 3,326 3,679 3,965 4,200 4,435 2,597 2,688 3,100 3,326 3,679 3,965 4,200 4,435 ***************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** Storage Maximum 0.400 0.400 100 0.680 3.50 0.95 I 5,712 5,712 * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * w * * * j iz-- G Quick TR -55 Ver.5.45 S/N:1315460151 Executed: 17:05:32 12 -08 -1993 * * * * * * SUMMARY OF RATIONAL METHOD PEAK DISCHARGES * * * * * * Q = adj * C * I * A Where: Q =cfs, C= Weighted Runoff Coefficient, I =in /hour, A =acres adj = 'C' adjustment factor for each return frequency Subarea Runoff Area Tc Wtd. Adj. I Total Peak Q Descr. 'C' acres (min) 'C' 'C' in /hr acres (cfs) Pervious 0.150 2.08 Impervious 0.900 Renz Subdivision /original Ridgemont Estates Lots 12 through 16, Block.l, existing developed plat "Zone G ", 50 -year storm 0.56 ovegtAND T . : JS S RETURN FREQUENCY = 50 years `C' adjustment, k = 1 Adj. 'C' = Wtd.'C' x 1 4.20 0.309 0.309 4.570 2.64 3.73 C 180' , " " r � 2.c cw JNE2 TG As b = 0,5 IN Dlrori A ° Yz � = '// (z)(oici)'= v. `i F g loo h o,03 = o.ob5 FIG. 18, "G &,ocu'_, —r Q = 3,. C.rS V Q - 2,1c s - A 0,-1 Fr1 '7,5 5 Fps T = _ 47c L F n S = l.o =r ,nirJ, ToTAL T = 3,1c, t I,04 - fi,Z M IN, CHEW . T D✓rtr■nn r . 4.7-0 MIIJ. = 4.57 ° /rot = CIA =• i� c ::,7 i At.S$Vn.1PTI°'J of b= 0. Si IS OR Quick TR -55 Ver.5.45 S/N:1315460151 Executed: 17:05:32 12 -08 -1993 Rene Subdivision /original Ridgemont Estates Lots 12 through 16, Block 1, existing developed plat "Zone G ", 50 -year storm * * ** Modified Rational Hydrograph * * * ** Weighted C = 0.309 Area= 2.640 acres Tc = 4.20 minutes Adjusted C = 0.309 Td= 100.00 min. I= 0.68 in /hr Qp= 0.55 cfs RETURN FREQUENCY: 50 year storm Adj.factor = 1.00 Output file: RENZ -G .HYD Time Hours 0.070 0.653 1.237 HYDROGRAPH FOR MAXIMUM STORAGE For the 50 Year Storm Time increment = 0.083 Hours Time on left represents time for first Q in each row. 0.55 0.55 0.55 0.55 0.55 0.55 0.55 0.55 0.55 0.55 0.55 0.55 0.55 • 0.55 0.55 0.55 0.55 0.55 0.55 0.55 0.00 �z -Ca Quick TR -55 Ver.5.45 S/N:1315460151 . Executed: 17:'05:32 '12 -08 -1993 ' Weighted `C' 0.309 0.309 0.309 0.309 0.309 0.309 0.309 0.309 MODIFIED RATIONAL METHOD - - -- Summary for Single Storm Frequency - - -- First peak outflow point assumed to occur at inflow recession leg. Renz Subdivision /original Ridgemont Estates Lots 12 through 16, Block 1, existing developed plat "Zone G ", 50 -year storm RETURN FREQUENCY: 50 yr Hydrograph file duration= 100.00 minutes Hydrograph file: RENZ -G .HYD Adjusted 'C' 0.309 0.309 0.309 0.309 0.309 0.309 0.309 0.309 • Duration Intens. Areas minutes in /hr acres 4 '10 15 20 30 40 50 60 `C' Adjustment = 1.000 Allowable Q = 0.00 cfs 4.570 3.200 2.460 1.980 1.460 1.180 1.000 0.880 2.64 2.64 2.64 2.64 2.64 2.64 2.64 2.64 Qpeak cfs 3.73 2.61 2.01 1.62 1.19 0.96 0.82 0.72 Tc = 4.20 minutes VOLUMES Inflow Storage (cu.ft.) (cu.ft.) 940 1,567 1,807 1,939 2,144 2,311 2,448 2,585 940 1,567 1,807 1,939 2,144 2,311 2,448 2,585 ***************************** * * * * * * * * * * * * * * * * * ** * * * * * * * * **** Storage Maximum 0.309 0.309 '100 0.680 2.64 0.55 I 3,329 3,329 ********************************************* ** * * * * * * * * * * * * * * * * * * * * * * * * * * * ** Quick TR -55 Ver.5.45 S/N:1315460151 Executed: 17:11:22 12 -08 -1993 Renz Subdivision /original Ridgemont Estates Lots 8 through 11, Block 1, existing developed plat "Zone H ", 50 -year storm * * * * * * SUMMARY OF RATIONAL METHOD PEAK DISCHARGES * * * * * * Q =adj * C * 'I * A Where: Q =cfs, C= Weighted Runoff Coefficient, I =in /hour, A =acres adj = 'C' adjustment factor for each return frequency Subarea Runoff Area Tc Wtd. Adj. I Total Peak Q Descr. 'C' acres .(min) 'C' 'C' in /hr acres (cfs) Pervious 0.150 0.70 Impervious 0.900 0.45 RETURN FREQUENCY = 50 years `C' adjustment, k = 1 Adj. 'C' = Wtd.'C' x 1 7.78 0.443 0.443 3.662 1.15 1.87 C llo (..4) CAI Er -SAND Tc . , 15 - 5.1B mu-J. 0.01 CHhw#.ua- T : h55UME D = o.15' A = /� a D = i t - 60)6. o, GS Fr' e .or 2-,5°° SOo n b _ = Fre,, la "G..ss!tubJEz > c = 2,o s V= Q _ 200 c_Cs A o.t.g Pr."- - 3,08 Ms L 390 ! F . Tr = V = 3,oA rps = 12 sec. = 2..0 1-"t4 --r T °r ! T = S.7.5 2.0= 7.'78 Miff. cHCC.E . 71 = Dutinn°ri =so C. "1.73 M f 1.= 3.71 /He. Q = CIA = 1.87 cfs = 2•o cfs A SSUMP7loni of _E = 0.15' is OK Re�J - H Quick TR -55 Ver.5.45 S/N:1315460151 Executed: 17:11:22 12 -08 -1993 0.046 0.630 1.213 1.796 Renz Subdivision /original Ridgemont Estates Lots 8 through 11, Block 1, existing developed plat "Zone H ", 50 -year storm * * ** Modified Rational Hydrograph * * * ** Weighted C = 0.443 Area= 1.153 acres • Pc = 7.78 minutes Adjusted C = 0.443 Td= 100.00 min. I= 0.68 in /hr Qp= 0.35 cfs RETURN FREQUENCY: 50 year storm Adj.factor = 1.00 Output file: RENZ -H .HYD HYDROGRAPH FOR MAXIMUM STORAGE • For the 50 - -Year Storm Time Time increment = 0.083 Hours Hours Time on left represents time for first Q in each row. 0.12 0.35 0.35 0.00 0.35 0.35 0.35 0.35 0.35 0.35 0.35 0.35 ' 0.35 0.35 0:35 0.35 0.35 0.35 0.35 0.35 0.35 0.22 1 1 1 1 1 1 1 1 1 1 1 1 1 ; 1 1 1 �1 �Zruz- H Quick TR -55 Ver.5.45 S/N:1315460151 Executed: 17:11:22 12 -08 -1993 First peak outflow point assumed to occur at inflow recession leg. .Rent Subdivision /original Ridgemont. Estates Lots 8 through 11, Block 1, existing developed plat "Zone H ", 50 -year storm RETURN FREQUENCY: 50 yr . •C' Adjustment = 1.000 Allowable Q = Hydrograph file duration= 100.00 minutes Hydrograph file: RENZ -H .HYD Weighted 'C 0.443 0.443 0.443 0.443 0.443. 0.443 0.443 0.443 Adjusted 'C' 0.443 0.443 0.443 0.443 0.443 0.443 0.443 0.443 MODIFIED RATIONAL METHOD ' - - -- Summary for Single Storm Frequency - - -- VOLUMES - Duration Intens. Areas Qpeak Inflow Storage minutes in /hr acres .cfs ( cu.ft.) (cu.ft.) - 8 10 15 20 30 40 50 60 3.662 3.200 2.460 1.980 1.460 1.180 1.000 0.880 1.15 1.15 1.15 1 :15. 1.15 1.15 1.15 1.15 '1.87 1.63 1.26, 1.01 0.75 0.60 0.51 0.45 872 980 1,130 1,213 1,341 1,446 1,531 1,617 0,.00 cfs Tc = 7.78 minutes 872 9BD 1,130 1,213 1,341 1,446 1,531 1,617 *********************: t********* * * * * **-. * * * *** * ** * * * * * * * * * * * * ** storage Max - imum 0.443 0.443 100 0.680 1.15 0.35 1 2,083 2,082 **********************'***'******************** * * * * * * * * * * * * * * * * * * * * * * * * :F *t * ** Basin Offsite 1 A (hilltop undeveloped) Basin Map and Description Runoff Curve Number Data Time of Concentration TR -55 Tabular Hydrograph Hydrograph Volume Basin Offsite 2A (present_ undeveloped) Basin Map and Description Rational Method Hydrology Hydrograph for Maximum Storage Maximum Storage Volume Calculation Part II OFFSITE DRAINAGE ANALYSIS An analysis of stormwater flowing to the 5 -acre Drainage Pond located to the northeast of Ridgemont Estates North - 3rd Addition aaaaaaaaaaaaaaa TABLE OF CONTENTS acoasaaaaaa *aa* Overview Summary Table I: Offsite Drainage Basins Summary Table 2: Individual Basin Hydrographs Summary Table 3: Drainage Easement - Inflow, Outflow & Storage Volume "Exhibit A" - Description of Existing Drainage Easement (1980) Description of 6.1 -Acre Revised Drainage Easement 1" = 200' Maps: Original "Exhibit A" Easement and Proposed Revision Basin Offsite 1 Basin Offsite 2 Basin Offsite 3 Basin Map and Description Rational Method Hydrology Hydrograph for Maximum Storage Maximum Storage Volume Calculation Composite Hydrographs: Present and Future Hydrograph Volumes Storage Estimates Basin Offsite I B (hilltop developed) Basin Map and Description Runoff Curve Number Data Time of Concentration TR -55 Tabular Hydrograph Hydrograph Volume Basin Offsite 2B (future_ developed) Basin Map and Description Rational Method Hydrology Hydrograph for Maximum Storage Maximum Storage Volume Calculation OVERVIEW This analysis examines the stormwater runoff to the low area immediately to the northeast of this plat. The existing large drainage easement, labeled "Exhibit A" in the attached description (recorded April 14, 1980), was originally designated as a drainage retention pond site to accommodate runoff from the Ridgemont Estates development on the hillside to the SE of this low area. Now, part of that hillside will drain to "Drainage Pond 3A" as described in the On -Site portion of this report (basins "Rcnz -A to Renz- I -1 "), while the remainder of the hillside will drain to the revised 6.I-acre drainage easement area and its enclosed 5 -acre "pond ". In addition to the hillside, two other "basins" drain to the low area. One is the future development within the Preliminary Plat of Ridgemont Estates North located north of the low area, referred to here as Basin "Offsite 2 ". At present, this land is cultivated row crops. For the future condition, we will assume development along the anticipated lot layout as depicted in the attached map of Basin "OlTsite 2 ". The third offsite basin, which we'll refer to as Basin "OfTsite 3 ", consists of the northeast portion of Ridgemont Estates North - 3rd Addition and the adjoining easterly portion of the forthcoming 4th Addition (west of the low area), which is analyzed in the developed condition only. With development of Ridgemont Estates North - 3rd and 4th Additions, the west end of the original drainage casement area is overlapped and will need to be revised. Similarly, with future platting along the northwest edge of the large easement (as per the preliminary plat of Ridgemont Estates North), that part of the easement is also overlapped and will need to be released. The area labeled "Revised Drainage Easement" on the Off -Site Drainage map will contain about 5 acres of usable drainage retention pond area. This analysis will consider present and anticipated future drainage runoff to this low area, and determine its storage capacity. The drainage easement area will be regraded to be at E� least 1 foot below the low point of the street gutter of the Radco Court cul -de -sac in Ridgemont Estates North -'4th Addition (street plans to be forthcoming). The 5 -acre pond shall have perimeter side slopes of 5:1 maximum grade (probably flatter). The floor of the drainage pond will be approximately live acres at elevation 2020.0± Two double - barrel drywelis exist near the northeast end of the 5 -acre priding area. Their grates, currently at approximate elevations 2020.2 and 2020.5, will be adjusted to be 6" above the floor of the drainage pond, i.e. 2020.5. Three drainage basins will be considered as contributing runoff to the drainage easement: Basin "OlTsite 1" consists of the drainage casement and the hillside to the SE, containing • part of " Ridgeront Estates ", "Ridgemont Estates No. 2 ", the preliminary plat of "Ridgemont Estates No. 3" (which is considered as fully developed and contributing all its stormwater to the large drainage easement, although it is still being designed by IPEC), and the undeveloped hilltop to the south of Conklin Road. This 158 -acre drainage basin is analyzed for runoff from a 50 -year storm event using S.C.S. TR -55 methods, with two potential conditions, I A and I B: "Offsite IA" is the "present" condition, and assumes the hilltop to the south remains undeveloped. "Offsite 113" is the "future" condition; it is the'same overall area as 1 A, but considers the development of assumed Tots and streets on the presently- unplatted hilltop area (see attached sketch), with no containment of stormwater at the hilltop site. Basin "Offsite 2" consists of the undeveloped farm fields to the north of the large drainage easement, which is within the preliminary plat of Ridgemont Estates North. This basin is analyzed using a 50 -year storm event and Rational Method hydrology, with two conditions: "Offsite 2A" considers this land in its present undeveloped state. "OlTsite 2B" assumes this land is developed in the future, with the portion Tying southeast of the centerline of 20th/Linterick draining to the 5 -acre ponding area. Basin Oflsite 2B is about 20% smaller than Basin Offsite 2A, because the portion lying northwest of the centerline of Limerick is excluded (it is assumed not to drain to the 5 -acre pond). Basin "Offsite 3" consists of those portions of Ridgemont Estates North - 3rd and 4th Additions (i.e., Basins 3E and 4E) that drain offsite to the large drainage area. This land is considered as developed, with a flow path that enters the 5 -acre drainage pond from the proposed cul -de -sac at the northeast end of Radco Court in the 4th Addition. This basin is analyzed fora 10 -year storm event using Rational Method Hydrology. Basin Name Condition Total Area Asphalt Roads Houses/D'ways *Total Impervious Lawn/Landscape Drag. Esmt. Area Wooded Slopes Undev. Hilltop Cultivated Fields * 'Total Pervious Composite CN/'C' Basin Name Condition Storm Frequency Peak Discharge Time to Peak Hydrograph Vol. l SUMMARY TABLE 1: OFFSITE DRAINAGE BASINS EA 18 2A 211 3 Units Present Future Present Future Developed - - -- 158.68 158.68 8.43 6.80 2.89 acres 10.96 12.84 0.39 0.83 0.60 acres 11.09 13.02 0 0.83 • 0.62 1 acres 22.04 25.85 0.39 1.65 122 1 acres 88.2! 102.99 0 5.15 1.67 + acres 5.70 5.70 0 0 0 1 acres 8.36 8.36 0 0 0 1 acres 34.37 15.78 0 0 0 1 acres 0 0 8.04 0 0 acres 136.64 132.83 8.04 5.15 1.67 acres CN 66.9 CN 67.2 'C' 0.328 'C' 0.332 'C' 0.467 1 runoff' SUMMARY TABLE 2: INDIVIDUAL. BASIN HYDROGRAPHS 1A I 1B 2A Present Future Present 50 50 50 41 57 9.74 12.2 12.1 0.13 183,600 190,440 11,273 SUMMARY TABLE 3: DRAINAGE EASEMENT INFLOW, OUTFLOW & STORAGE VOLUME Composite H'graph Condition I3asins Peak Discharge Outflow (4 Lg. Pond Hydrograph Volume Approx. Storage Vol. Depth 14 5 Acres Ren Pre Present 1 A±2A +3 41 2 198,634 107,400 0.50 Ren- F Future 1 B-t-2B+3 57 2 203,202 112,000 0.51 211 3 Units Future Developed - - - -- 50 10 years 10.32 4.21 cis 0.03 0.08 hours 9,210 3,883 cu. ft. Units cts cis cu. ft. cu. fl. feet • Conclusion: Present and Future condition runolffrom all contributing basins could be accommodated by a large drainage pond within the resized drainage casement. The pond would be about 6" deep at maximum storage with a pond floor area ()FS acres and the two existing Type "B" drywells. EXHIBIT "A" Description (Drainage retention pond site) 4911 r•._ 566 That portion of the 0E', NW, and the NY, 111', :'5, Spokane County, Washington, being mor 1d, r i :°I, ,11.., ru;�::1 ..s f u I I ce;: Beginning at a point that is 5.89 ° IG'4 ? "C., :lhtauL,: of 0'16.:1:; fei:t from the 0 corne • of Section 2 5 , s a i J p o i n t I J : i m 1 L u n n I1, the north boundary of Section 25 and the west boundary of Ivy: U C,,,hjrt ,led others, as established by a survey perfonnnll hy.Adam'. Engineering in 1976; thence along saki Cashatt west boundary, the following two (2) courses; 1) S.30 08'12 "E., a distance of 152.25 feet; 2) 5.50'22'25 "C., a distance of 29.00 feet; thence S.52 30'00 "W., a distance of 135 feet; thence S.30 22'00 "E., a distance of 119.42 feet; thence 5.56 "W., a distance of 49.06 feet; thence 0.30 ° 22'00 "W., a distance of 118.)4 feet; thence 5.52 38'00 "W., a distance o8 307.71 feet; thence S.50 22'00 "E., a distance of 11.82 feet; thence S.39 26'16 "W., a distance of 49.00 feet ; thence 0.50 22'00 "W., a distance oX 161.19 feet; thence 5.45 39'33 "W., a distance of 389.84 feet; thence S.50 33'44 "E., a distance of A99.11 feet; thence S.39 26'16 "W., a distance oX 40.00 feel; thence 11.50 33'44 "W., a distance of 293.47 feet; thence 5.4539'33 "W., a distance of 8.90 feet; thence 5.76 35'00 "W., a distance 01 144.00 feet; "thence S.07 35'00 "W., a distance of 2x5.00 feet; thence S.59 05'00 "W., a distance of A44.00 feet; thence N.39 38'14 "W., a distance of 57.50 feet; thence 0.21 52'00 "E., a distance of 2,30.00 feet; thence 0.85 21'57 "W., a distance of 29.12 feet; thence N.49 09'34 "E., a'distance of 922.00 feet; thence 0.62 14'59 "E., a distance of 551.95 feet to the point of beginning. Containing 8.86 + acres.. FILED OR RECORDEDI ;'iEGUES ?'IF County Engineer • APR II 3 24 PH 'BO SP06AMt 00001 T.wASt11 JIFPn T Y Reg Court House xxx 1 C,.. o 1.!:7. 3?;; iiG rYU 1 , IMO — r a I 0 iibu tatuE !i+ 1 / 1 1 t 1 1 J t I I __ - -4 1 1 1 1 N'l4 S CCTION 7 I 1 ` I � • 4 • i i 1 ia. . / / • `�. N. N. / f : \AN. ' / '� � .. d I e P. o,B.� i 2.LD J %� / ♦ ♦ • \ \ \ / \ A / • • • • • • • • • • • • • / ♦ ♦ ♦ ♦ 1 ♦ ♦ ♦ /' / i \ 1 \ \ \ I / 3 ♦♦ • ♦ ♦ Yi / �♦ \ \ I ` 1 i 1 ♦ ♦ ♦ ♦ j ♦♦ I t 1 J . { /' / I 1 2 j ♦♦ 1 / \ i 1 1 gyp. i 2 / • ♦ ♦ ♦y � � • ♦ I P 1 • • • 1 ♦♦ 3 ♦ � t ♦ ♦♦ p 5 7 1 4 ♦ ♦ ♦ • ♦♦ \ �� \ r. ♦ y 1 . ♦ ♦ — a - - - - - t 1 ♦, DRAINAGE EASEMENT A drainage pond retention site easement over that portion of the NE U4 of the NW 1/4 and the NW 1/4 of the NE 1/4 of Section 25, T. 25 N., R. 44 E.W.M., in Spokane County, Washington, being more particularly described as follows: Begin at a point that is S 89 ° 16'42 "E, a distance of 626.35 feet from the N 1/4 corner of said Section 25, said point being common to the North boundary of said Section 25 and the West boundary of Leo N. Cashatt and others, as established by a survey perforated by Adana Engineering in 1976; thence, along said Cashatt West boundary, the following two (2) courses, S 30°08'12"E a distance of 152.25 feet; thence S 50 °22'25 "E a distance of 26.00 feet; thence 5 52 °30'00 "W a distance of 135.07 feet; thence S 30 °22'00 "E a distance of 119.42 feet; thence S 56 °26'16 "W a distance of 40.06 feet; thence N 30 °22'00 "W a distance of 116.74 feet; thence 5 52 °38'00 "W a distance of 307.71 feet; thence 5 50 °22'00 "E a distance of 151.82 feet; thence 5 39 °26'16 "W a distance of 40.00 feet; thence N 50 ° 22'00 "W a distance of 161.19 feet; thence 5 45 ° 39'33 "W a distance of 349.84 feet; thence S 50 °33'44 "E a distance of 199.11 feet; thence S 39 ° 26'16 "W a distance of 40.00 feet; thence N 50 °33'44 "W a distance of 203.47 feet thence 5 45 ° 39 1 33 "W a distance of 84.90 feet; thence S 76 °35'00 "W a distance of 144.00 feet; thence S 07 °35'00 "W a distance of 89.92 feet to the East line of the Future Plat of Ridgemont Estatcs North 3rd Addition; thence N 02 ° 51'52 "W, along said East line, a distance of 215.89 feet to a point on a nontangent curve concave to t c West with a radius of 50.00 feet and a radial bearing of S 44 °22'04 "E, said point being on the Easterly line of the Future Plat of Ridgemont Estates North 4th, the next 2 courses along said Easterly line; thence Northeasterly, Northerly and Northwesterly through a central angle of 119 an arc distance of 103.96 feet; thence N 16 °29'55 "E, radial to said curve, a distance of 28.10 feet; thence N 56 °18'15 "E a distance of 248.44 feet; thence N 32 ° 00'54 "E a distance of 244.68 feet; thence N 76 0 30 1 08 "E a distance of 309.16 feet; thence N 00 ° 29 1 08 "E a distance of 73.54 feet; thence N 62 ° 14'59 "E a distance of 223.11 feet to the Point of Beginning. Contains 6.1 Acres •1110 IM / / / ,� // / ) / ' | '| -] ' ` __________ / � | __ .'' ���-------- — — ^ ---- -`_ |�o��� /+>/[�^JUE DRAINAGE EASEMENT m5.m^. sq. 5. 6.10 acres / 10 `� `` �''. �// '''' � ` � '' //� '^'`` ` • ! UNE !��CT�:/»^�N�!,' ,� ,' . � / � ���"`. ����� '/' '� � � `. ,," , � � NI L3 545'39'33-A ��^�i// '/ � � � / w co,^un ^:"o/ , ` � � / 1.5 ooz^u° m^"./ ` � 1 '�` , LE ,m�6/^w mm'\ � l `.' ` 1 n �m�,,5 , 25.00' / � . \ .' 3 `����� / -``. �. /'� � ) � • ///`\� � -- / �� � � � � / � N. �x�� � � / � �'' / "o \ '^�/ \ � ^� _ ' �\� � ^, | cw«�. o�^, 1 u,e*/ `^'�w, /vuw �| .' r- `_ / ' - 2 `. ' / / ` \ ` . ````- ��' � i ` `/ ` // � ` '~ /'‘, �. ` / ` // ` ^ / � / / ` `\` --- / \ ` 1 .` '/ /' � / ``r'.'''� \ +-''-- / u \ `�/ / / x ' ' / • � � ! �` ``` /`` `\ // ' /\/ / ` / ` \ , • , , ` / !\� � ` / /� ` / . . � -'--'� ' ` � `` 1 ` \ �--' 1 / `` / ` ``/ .--� \ � 1 / / /^` ` /` ` +-'- . . I ` 2 ` f/ /` ` / ` \ / � ' `/ ^ ` / \ . � �/ `� // // // \ \` / i L-- I / , '-'-- / � ' ' ` ` / ` \ � / // ` ` /'y `� ` / - `� / / /' � ` `` ' ' • ` ` �----- � . . ' / / / ` , / \ -( / i |' '/ ` ` L ' / � ` , \ \ '-'-- \ '� ` ,/,/,/,‘ . ` J. 1 ` ` - / ^ `• / ` '''�-----' , / ` / / / ` , //,' `` /./ ` \ / `/ ' , ' . \ / `. 1 I � ' // ' ' ' ' ` � � / � . � . � ' � `` ��,,� /\� ' ` i / � ` `.� \ / '''�//� // , � � \� ' / , . � \ ` ' ' 7 ` O 5 CAL - E I OM — _ — _ — — I - - _ _ _ • • MINIIM 4 . U0 L ' • OIANACE 1.5[4[..1 :55 !),. *4 M. !.1'J acee Z\\ Sn c, n 5 ' O. 0 c 0 : P o o ' en � yL LINE I DIREC110N I DISTANCE L1 N00'29'03 E 7154' L2 N16'29'55 "E 28.10' L3 545'39'33'W 84.90' L4 539'26'16"W 40.00' L5 539'26'16'4 40.00' L6 S56'26'16" V: 40.06' L7 550'22'25 "E 26.00' 7 CURVE I RADIUS I LENG1H 1 TANGLN 1 I DEL1A I 01 50.00' 103 96' 85.11' 119'05'01" NoT To SC.ALF 1 1 1 1 _1 _1 1 .BASIN: OFFSITE 1 A Basin'Offsite t, with.hilltop,undevelonedl 1 , .e - fi r -'. - . — if • "gift A /.. s Ar '.. 1 /U / // ' i���� JJ ll ln/ / / / j %, -> —� / D i/i / iy '�i i �l1 / ij�4 4 y/�/// 1111 � �'' r 11 111 /I( (Illl ' � 1 8A "OFFSITE I .. � � 1 j �I1'111111111111 /� i• 1 ) • � • l e 1 1 ii1 1111Uk� '1 !) / ld r---.1 // k 1 14 • 'vV �l'1/kf(Uf l / \ i /� j I ) / / .• \\ � p �` lk/MI � 1 m \11 \u \ 1 l l ,-/ 1/ ill I I 1\ ll \\\l \ \ \ \ 1 \I 1 11 '. \ \ \ MI I k I\` \ \ \ \ \ \ \ \ \ \\ %1 3 �/ I �\ \\\�a�� \ \�\�� \ � N..7_-_-//,— � \ \ �� N • !C O r III 11 \��\� \ \ \\ \•,�, = = �� � f l �/ i i 11 /6 -re---"- \ \�:''- "- \� S' ,�- /i.�oo�_-- 1 1- BASIN OFFSITE 1 1 Basin Offsite IA: BASIN DESCRIPTION General Assumptions: 1 - 1. Preliminary Plat of Ridgemont Estates No. 3 is developed, and the entire plat drains to the large easement area. ' 2. Hilltop to the south is undeveloped. 3. Road Widths = 40' curb -to -curb 4. Each lot has 3,000 sq.ft. of house + driveway; remainder is lawn/landscaped. A. Ridgemont Estates (portion) • Total Area = 205,220 sq. fl. 1 _ • Roads: 500 LF A 40' wide = 20,000 sq. ft. 380 LF a 20' wide = 7,600 sq. ft. Total = 27,600 sq. ft. of impervious asphalt pavement (cD CN 98 • Lots: 7 na, 3,000 sq. ft. = 21,000 sq. ft. of impervious houses & driveways (i CN 98 1 - • Retnainder. 156,620 sq. ft. of pervious yards and landscaping @ CN 61 1 D. Ridgemont Estates No. 2 ' • Total Area = 1,922,603 sq. ft. 1 - • Roads: 4,500 LF (a2 40' wide = 180,000 sq. ft. 370 LF a 20' wide = 7,400 sq. ft. Total = 187,400 sq. ft. of impervious asphalt pavement ()a, CN 98 ' • Lots: 62 (a, 3,000 sq. ft. = 186,000 sq. ft. of impervious houses & d'ways (a7 CN 98 • Remainder: 1,549,203 sq. ft. of pervious yards and landscaping a, CN 61 1 1- 1 • Basin Offisite 1A - continued C. Preliminary Plat of Ridgemont Estates No 3 • Total Area = 2,674,685 sq. ft. • Roads: 6,200 LF a, 40' wide = 248,000 sq. ft. private road/cul -de -sac = 14,200 sq. ft. Total = 262,200 sq. ft. of impervious asphalt pavement u, CN 98 • Lots: 92 n, 3,000 sq. ft. = 276,000 sq. ft. of impervious houses & d'ways @, CN 98 • Remainder: 2,136,485 sq. fl. of . pervious yards and landscaping @ CN 61 D. Remaining land within basin • Undeveloped hilltop to south = 1,497,303 sq. ft. = 34.37 acres c CN 66 • Wooded slopes just SE of large drainage easement, including "chutes" within the original easement = 363,940 sq. ft. = 8.36 acres @ CN 55 • Usable Drainage Easement area (resized, excluding portions within pending and future plats on the west and north sides of the original "Exhibit A" easement) = 248,310 sq. ft. = 5.70 acres CN 61 Basin l A Summary: Total Area = 6,912,061 sq. ft. = 158.68 acres Impervious: Roads = 477,200 sq. ft., Houses + Driveways = 483,000 sq. fl. Total = 960,200 sq. ft. = 22.04 acres a, CN 98 Pervious: Lawns &Landscaping = 3,842,308 sq. ft. = 8821 acres @ CN 61 Drainage Easement = 5.70 acres @ CN 61 Undeveloped hilltop — acres @ CN 66 Unplatted wooded slopes = 8.36 acres @ CN 55 FaoFF 1A.ruit1 Quick TR -55 Ver.5.45 S/N:1315460151 Executed: 09:27:39 08 -12 -1993 Ridgemont Basin Offsite 1 Runoff from R.E., (with top of Composite Area: offsite -1 undev RUNOFF CURVE NUMBER DATA SURFACE DESCRIPTION Impervious (roads, houses) Pervious (usable drng. esm't.) Pervious (lawns, landscaping) Pervious ( undev. hilltop to S.) Pervious'(unplatted slopes) Estates North (hillside SE of plat) R.E. No. 2, R.E. No. 3 hill undeveloped) AREA (acres) 22.04 5.70 88.21 34.37 8.36 CN 98 61 61 66 55 COMPOSITE AREA ---> 158.68 66.9 ( 67 ) ' Quick TR -55 Ver.5.45 S/N:1315460151 Executed: 09:35:34 08 -12 -1993 RENOFF1A.TCT SHEET FLOW (Applicable to Tc only) Segment ID Surface description Manning's roughness coeff., n Flow length, L (total < or = 300) Two -yr 24 -hr rainfall, P2 Land slope, s 0.8 T .007 * (n *L) SHALLOW CONCENTRATED FLOW Segment ID Surface (paved or unpaved)? Flow length, L Watercourse slope, s Ridgemont Estates North Basin Offsite 1 (hillside SE of Plat) Runoff from R.E., R.E. No. 2, R.E. No. 3 (with top of hill undeveloped) 0.5 0.4 P2 * s 0 5 Avg.V = Csf * (s) where: Unpaved Csf '= 16.1345 Paved Csf = 20.3282 T = / (3600 *V) CHANNEL FLOW Segment ID Cross Sectional Flow Area, a Wetted perimeter, Pw Hydraulic radius, r = a /Pw Channel slope, s Manning's roughness coeff., n V 2/3 1/2 1.49 * r * s n Flow length, L T = L / (3600 *V) Tc COMPUTATIONS FOR: Basin Offsite 1 hilltop undeveloped 0.3000 ft 10.0 in 1.400 ft /ft 0.0700 hrs 0.04 N slope Unpaved ft 1200.0 ft /ft 0.0700 ft /s 4.2688 hrs 0.08 Conklin sq.ft 0.80 ft 1.00 ft 0.800 ft /ft 0.0700 0.0160 ft /s %21.2329 ft 2400 hrs 0.03 = 0.04 = 0.08 = 0.03 TOTAL TIME (hrs) 0.15 1 I TR -55 TABULAR HYDROGRAPH METHOD Type II. Distribution (24 hr. Duration Storm) I Executed: 08 -12 -1993 09:38:08 Watershed file: - -> RENOFF1A.MOP Hydrograph file: - -> RENOFF1A.HYD 1 Ridgemont North Basin Offsite 1 (hillside SE of Plat) 1 50 -year runoff from Ridgemont Estates /No.2 /No.3 (with' top of hill undeveloped) IL »» Input Parameters Used to Compute Hydrograph <«< . Subarea AREA CN Tc * Tt Precip. I Runoff Ia /p j scription (acres) (hrs) (hrs) (in) (in) input /used offsite -1 undev 158.68 67.0 0.20 0.00 2.40 I 0.32 I.41 .41 1 1 1 1 Flick TR -55 Version: 5.45 S /N: 1315460151 Page 1 Return Frequency: 50 years I Travel time from subarea outfall to composite watershed outfall point. Subarea where user specified interpolation between Ia /p tables. Total area = 158.68 acres or 0.2479 sq.mi Peak discharge = 41 cfs »» Computer Modifications of Input Parameters ««< I Input Values Rounded Values Ia /p Subarea Tc * Tt Tc * Tt Interpolated Ia /p Description (hr) (hr) (hr) (hr) (Yes /No) Messages 1 fsite -1 undev 0.15 0.00 0.20 0.00 Yes Travel time from subarea outfall to composite watershed outfall point. Quick TR -55 Version: 5.45 S /N: 1315460151 Page 2 Return Frequency: 50 years Executed: 08 -12 -1993 09:38:08 Watershed file: - -> RENOFF1A.MOP Hydrograph file: - -> RENOFF1A.HYD Ridgemont Estates North Basin Offsite 1 (hillside SE of Plat) 50 -year runoff from Ridgemont Estates /No.2 /No.3 (with top of hill undeveloped) »» 'Summary of Subarea Times to Peak «« Subarea offsite -1 undev Composite Watershed TR -55 TABULAR HYDROGRAPH METHOD Type II. Distribution (24 hr. Duration Storm) Peak Discharge at Time to Peak at Composite Outfall Composite Outfall ' (cfs) (hrs) 41 12.2 41 12.2 1 1 1 1 1 1 Quick TR -55 Version: 5.45 S /N: 1315460151 Page 3 Return Frequency: 50 years ' Total (cfs) 1 TR -55 TABULAR HYDROGRAPH METHOD Type II. Distribution (24 hr. Duration Storm) Executed: 08 -12 -1993 09:38:08 Watershed file: - -> RENOFF1A.MOP Hydrograph file: - -> RENOFF1A.HYD Ridgemont Estates North Basin Offsite 1 (hillside SE of Plat) 50 -year runoff from Ridgemont Estates /No.2 /No.3 (with top of hill undeveloped) Composite Hydrograph Summary (cfs) Subarea - 11.0 11:3 11:6 11.9 12.0 12.1 12.2 12.3 12.4 Description hr hr hr hr hr hr hr hr hr 'offsite -1 undev 0 0 0 1 7 24 41 32 19 'Total (cfs) 0 0 0 1 7 24 41 32 19 Subarea 12.5 12.6 12.7 12.8 13.0 13.2 13.4 13.6 13.8 Description hr hr hr hr hr hr hr hr hr 'offsite-1 undev 15 13 11 9 8 7 6 6 5 "Total (cfs) 15 13 11 9 8 7 6 6 5 Subarea 14.0 14.3 14.6 15.0 15.5 16.0 16.5 17.0 17.5 Description hr hr hr hr hr hr hr hr hr 1 offsite -1 undev 5 4 4 4 4 3 3 3 3 'Total (cfs) 5 4 4 4 4 3 3 3 3 Subarea 18.0 19.0 20.0 22.0 26.0 Description hr hr hr hr hr ' offsite -1 undev 3 2 2 2 0 3 2 2 2 0 1 - Quick TR -55 Version: 5.45 S /N: 1315460151 Page 4 Return Frequency: 50 years TR -55 TABULAR HYDROGRAPH METHOD Type II. Distribution (24 hr. Duration Storm) Executed: 08 -12 -1993 09:38:08 Watershed file: - -> RENOFF1A.MOP Hydrograph file: - -> RENOFF1A.HYD Ridgemont Estates North Basin Offsite 1 (hillside SE of Plat) 50 -year runoff from Ridgemont Estates /No.2 /No.3 (with top of hill undeveloped) Time Flow Time Flow (hrs) (cfs) (hrs) (cfs) 11.0 0 14.8 4 11.1 0 14.9 4 11.2 0 15.0 4 11.3 0 15.1 4 11.4 0 15.2 4 11.5 0 15.3 4 11.6 0 15.4 4 11.7 0 15.5 4 11.8 1 15.6 4 11.9 1 15.7 4 12.0 7 15.8 3 12.1 24 15.9 3 12.2 41 16.0 3 12.3 32 16.1 3 12.4 19 16.2 3 12.5 15 16.3 3 12.6 13 16.4 3 12.7 11 16.5 3 12.8 9 16.6 3 12.9 8 16.7 3 13.0 8 16.8 3 13.1 8 16.9 3 13.2 7 17.0 3 13.3 6 17.1 3 13.4 6 17.2 3 13.5 6 17.3 3 13.6 6 17.4 3 13.7 6 17.5 3 13.8 5 17.6 3 13.9 5 17.7 3 14.0 5 17.8 3 14.1. 5 17.9 3 14.2 4 18.0 3 14.3 4 18.1 3 14.4 4 18.2 3 14.5 4 18.3 3 14.6 4 18.4 ... .. 1 ❑ Z 3 1 1 1- 1 1 1- 1' 1 1 1 1 1 1 Quick TR -55 Version: 5.45 S/N: 1315460151 Page 5 Return Frequency: 50 years TR -55 TABULAR HYDROGRAPH METHOD Type II. Distribution (24 hr. Duration Storm) Executed: 08 -12 -1993 09:38:08 Watershed file: - -> RENOFF1A.MOP Hydrograph file: - -> RENOFF1A.HYD Ridgemont Estates North Basin Offsite 1 (hillside SE of Plat) 50 -year runoff from Ridgemont Estates /No.2 /No.3 (with top of hill undeveloped) Time Flow Time Flow (hrs) (cfs) (hrs) (cfs) 18.6 2 22.4 2 18.7 2 22.5. 2 18.8 2 22.6 2 18.9 2 22.7 2 19.0 2 22.8 2 19.1 2 22.9 2 19.2 2 23.0 2 19.3 2 23.1 1 19.4 2 23.2 1 19.5 2 23.3 1 19.6 2 23.4 1 19.7 2 23.5 1 19.8 2 23.6 1 19.9 2 23.7 1 20.0 2 23.8 1 20.1 2 23.9 1 20.2 2 24.0 1 20.3 2 24.1 1 20.4 2 24.2 1 20.5 2 24.3 1 20.6 2 24.4 1 20.7 2 24.5 1 20.8 2 24.6 1 20.9 2 24.7 - 1 21.0 2 24.8 1 21.1 2 24.9 1 21.2 2 25.0 0 21.3 2 25.1 0 21.4 2 25.2 21.5 2 25.3 21.6 2 25.4 0 21.7 2 25.5 0 21.8 2 25.6 0 21.9 2 25.7 0 22.0 2 25.8 0 22.1 2 25.9 0 22.2 2 22.3 2 POND -2 Version: 5.15 S /N: 1295160123 Executed 08 -12 -1993 09:55:27 >>>>»» Summary of Hydrograph Volume «««« Hydrograph: RENOFF1A.HYD Volume = 183,600 cu.ft. 4.21 ac -ft BASIN: OFFSITE 1B (Basin Offsite 1, with hilltop develnned) BASIN OFFSITE 1 - continued Basin offsite 1B: BASIN DESCRIPTION General Assumptions: This is the same overall size as Basin 1A, with the only difference being the assumed development of a portion of the hilltop area (see attached sketch). Thus, using the figures for Basin 1A, replace the "undeveloped" 34.37 acres a CN 66 with the following: • Roads: 1,700 LF (A 40' width = 68,000 sq. ft. 700 LT (a 20' width = 14,000 sq. ft. Total = 82,000 sq. ft. of additional asphalt roadways • Lots: 28 a 3,000 sq. ft. = 84,000 sq. fl. of additional houses and driveways Total Impervious = 82,000 + 84,000 = 166,000 sq. Ft. A 3.81 acres additional impervious, replacing, pervious "undeveloped hilltop"_ From Basin 1A: 960,200 + 166,000 = 1,126,200 sq, fl. of total impervious = 25.85 acres rx, CN 98 in Basin Offsite 1l3 • Additional pervious lawns and landscaping - approximately 644,000 sq. ft. = 14.78 acres convened to lawns and landscaping. From Basin IA: 3,842,308 + 644,000 = 4,486,308 sq. It = 102.99 acres (e CN 61 in Basin Offsitc LB Other quantities remain the same as for Basin 1 A: Drainage Easement = 5.70 acres 0, CN 61 Undeveloped hilltop = 34.37 acres originally - (3.81 acres to CN 98) - ( 14.78 acres to CN 61) = 15.78 acres remaining (i CN 66 Unplatted wooded slopes = 8.36 acres a CN 55 0 1 ■ } - , IL LTOP AREA ar■or = EouiiLnR•/ OF ( En= 17.3 „ f "OFFSITE 1 = Fe yf.: I Et-E rt171 IF.i_ ( I! v EA. I! or F TE ._ N _ ow sin um. • t \ � IDO rrY) _ JSLE j r11OF1= F'_Ch1 Quick TR -55 Ver.5.45 S/N:1315460151 Executed: 09:32:36 08 -12 -1993 Ridgemont Estates North Basin Offsite 1 (hillside SE of plat) Runoff from R.E., R.E. No. 2, R.E. No. 3 (with top of hill developed) Composite Area: Offsite -1 devel RUNOFF CURVE NUMBER DATA AREA CN SURFACE DESCRIPTION (acres) Impervious (roads, houses) 25.85 98 Pervious (usable drng. esm't.) 5.70 61 Pervious (lawns, landscaping) 102.99 61 Pervious (undev. hilltop to S.) 15.78 66 Pervious (unplatted slopes) 8.36 55 COMPOSITE AREA - - -> 158.68 67.2 ( 67 ) I/ Quick TR-55 Ver.5.45 S/N :1315460151 Executed: 16:05 :38 08 -11 -1993 RENOFF1B.TCT Ridgemont Estates North Basin Offsite 1 (hillside SE of plat) Runoff from R.E., R.E. No. 2, R.E. No. 3 and top of hill developed Tc COMPUTATIONS FOR: Basin Offsite 1 1 SHEET FLOW (Applicable to Tc only) Segment ID hilltop Surface description trees I Manning's roughness coeff., n 0.3000 Flow length, L (total < or = 300) ft 10.0 Two -yr 24 -hr rainfall, P2 in 1.400 II Land slope, s ft /ft 0.0330 0.8 .007 * (n *L) 1 1 1 I SHALLOW CONCENTRATED FLOW Segment ID top rd. Surface (paved or unpaved) ? Unpaved Flow length, L ft 200.0 Watercourse slaps, s ft /ft 0.0250 1 1 1 1 1 1 1 T = 0.5 0.4 P2 * s Avq.V = Csf * (s) where: Unpaved Csf T 16.1345 Paved Csf = 20.3282. T = L / (3600 *V) 0.5 hrs 0.06 = 0.06 ft /s 2.5511 II CHANNEL FLOW Segment ID road Cross Sectional Flow Area, a sq.ft 0.80 Wetted perimeter, Pw ft 1.00 Hydraulic radius, r = a /Pw ft 0.800 Channel slope, s ft /ft 0.0700 ,Manning's roughness coeff., n 0.0160 hrs 0.02 = 0.02 2/3 1/2 1.49 * r * s V = ft /s %21.2329 n Flow length, L ft 4300 T = L / (3600 *V) hrs 0.06 = 0.06 TOTAL TIME (hrs) 0.13 1 I Quick TR -55 Version: 5.45 S /N: 1315460151 Page 1 Return Frequency: 50 years 1 1 1 1 F Subarea AREA CN Tc * Tt Precip. I Runoff Ia /p Description (acres) (hrs) (hrs) (in) ( (in) input /used I Offsite-1 devel 158.68 67.0 0.10 0.00 2.40 1 0.32 I.41 .41 »» Computer Modifications of Input Parameters <<<<< 1 'Offsite -1 devel 0.13 0.00 0.10 0.00 Yes 1 1 1 1 1 1 TR -55 TABULAR HYDROGRAPH METHOD Type II. Distribution (24 hr. Duration Storm) Executed: 08 -12 -1993 09:44:32 Watershed file: - -> RENOFF1B.MOP Hydrograph file: - -> RENOFF1B.HYD Ridgemont Estates North Basin Offsite 1 (hillside SE of Plat) 50 -year runoff from Ridgemont Estates /No.2 /No.3 (with top of hill developed) »» Input Parameters Used to Compute Hydrograph «« I * Travel time from subarea outfall to composite watershed outfall point. I -- Subarea where user specified interpolation between Ia /p tables. Total area = 158.68 acres or 0.2479 sq.mi Peak discharge = 57 cfs Input Values Rounded Values Ia /p Subarea Tc * Tt Tc * Tt Interpolated Ia /p Description (hr) (hr) (hr) (hr) (Yes /No) Messages * Travel time from subarea outfall to composite watershed outfall point. 1 1 Quick TR -55 Version: 5.45 S /N: 1315460151 Page 2 Return Frequency: 50 years TR -55 TABULAR HYDROGRAPH METHOD I Type II. Distribution (24 hr. Duration Storm) 1 Executed: 08 -12 -1993 09:44:32 Watershed file: - -> RENOFF1B.MOP Hydrograph file: - -> RENOFF1B.HYD Ridgemont Estates North Basin Offsite 1 (hillside SE of Plat) 50 -year runoff from Ridgemont Estates /No.2 /No.3 (with top of hill developed) »» Summary of Subarea Times to Peak <<<< Subarea Offsite -1 devel Composite Watershed Peak Discharge at Time to Peak at Composite Outfall Composite Outfall (cfs) (hrs) 57 12.1 57 12.1 I Quick TR -55 Version: 5.45 S /N: 1315460151 Page 3 Return Frequency: 50 years 1 1 1 1 1 1 TR -55 TABULAR HYDROGRAPH METHOD Type II. Distribution (24 hr. Duration Storm) Executed: 08 -12 -1993 09:44:32 Watershed file: - -> RENOFF1B.MOP Hydrograph file: - -> RENOFF1B.HYD Ridgemont Estates North Basin Offsite 1 (hillside SE of Plat) 50 -year runoff from Ridgemont Estates /No.2 /No.3 (with top of hill developed) Composite Hydrograph Summary (cfs) Subarea 11.0 11.3 11.6 11.9 12.0 12.1 12.2 12.3 12.4 II Description hr hr hr hr hr hr hr hr hr Offsite -1 devel 0 0 0 5 23 57 35 16 14 II Total (cfs) 0 0 0 5 23 57 35 16 14 Subarea 12.5 12.6 12.7 12.8 13.0 13.2 13.4 13.6 13.8 II Description hr hr hr hr hr hr hr hr hr Offsite -1 devel 12 10 9 8 7 7 6 6 5 •Total(cfs) 12 10 9 8 7 7 6 6 5 Subarea 14.0 14.3 14.6 15.0 15.5 16.0 16.5 17.0 17.5 II Description hr hr hr hr hr hr hr hr hr Offsite -1 devel 5 4 4 4 4 3 3 3 3 II Total (cfs) 5 4 4 4 4 3 3 3 3 Subarea 18.0 19.0 20.0 22.0 26.0 II Description hr hr hr hr hr Offsite -1 devel 3 2 2 2 0 Total (cfs) 3 2 2 2 0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Quick TR -55 Version: 5.45 S /N: 1315460151 Page 4 Return Frequency: 50 years TR -55 TABULAR HYDROGRAPH METHOD Type II. Distribution (24 hr. Duration Storm) Executed: 08 -12 -1993 09:44:32 Watershed file: - -> RENOFF1B.MOP Hydrograph file: - -> RENOFF1B.HYD Ridgemont Estates North Basin Offsite 1 (hillside SE of Plat) 50 -year runoff from Ridgemont Estates /No.2 /No.3 (with top of hill developed) Time Flow Time Flow (hrs) (cfs) (hrs) (cfs) 11.0 0 14.8 4 11.1 0 14.9 4 11.2 0 15.0 4 11.3 0 15.1 4 11.4 0 15.2 4 11.5 0 15.3 4 11.6 0 15.4 4 11.7 2 15.5 4 11.8 3 15.6 4 11.9 5 15.7 4 12.0 23 15.8 3 12.1 57 15.9 3 12.2 35 16.0 3 12.3 16 16.1 3 12.4 14 16.2 3 12.5 12 16.3 3 12.6 10 16.4 3 12.7 9 16.5 3 12.8 8 16.6 3 12.9 8 16.7 3 13.0 7 16.8 3 13.1 7 16.9 3 13.2 7 17.0 3 13.3 6 17.1 3 13.4 6 17.2 3 13.5 6 17.3 3 13.6 6 17.4 3 13.7 6 17.5 3 13.8 5 17.6 3 13.9 5 17.7 3 14.0 5 17.8 3 14.1 5 17.9 3 14.2 4 18.0 3 14.3 4 18.1 3 14.4 4 18.2 3 14.5 4 18.3 3 14.6 4 18.4 3 14.7 4 18.5 2 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Quick TR -55 Version: 5.45 S /N: 1315460151 Page 5 Return Frequency: 50 years TR -55 TABULAR HYDROGRAPH METHOD Type II. Distribution (24 hr. Duration Storm) Executed: 08 -12 -1993 09:44:32 Watershed file: - -> RENOFF1B.MOP Hydrograph file: - -> RENOFF1B.HYD Ridgemont Estates North Basin Offsite 1 (hillside SE of Plat) 50 -year runoff from Ridgemont Estates /No.2 /No.3 (with top of hill developed) Time Flow Time Flow (hrs) (cfs) (hrs) (cfs) 18.6 2 22.4 2 18.7 2 22.5 2 18.8 2 22.6 2 18.9 2 22.7 2 19.0 2 22.8 2 19.1 2 22.9 2 19.2 2 23.0 2 19.3 2 23.1 1 19.4 2 23.2 1 19.5 2 23.3 1 19.6 2 23.4 1 19.7 2 23.5 1 19.8 2 23.6 1 19.9 2 23.7 1 20.0 2 23.8 1 20.1 2 23.9 1 20.2 2 24.0 1 20.3 2 24.1 1 20.4 2 24.2 1 20.5 2 24.3 1 20.6 2 24.4 1 20.7 2 24.5 1 20.8 2 24.6 1 20.9 2 24.7 1 21.0 2 24.8 1 21.1 2 24.9 1 21.2 2 25.0 0 21.3 2 25.1 0 21.4 2 25.2 0 21.5 2 25.3 0 21.6 2 25.4 0 21.7 2 25.5 0 21.8 2 25.6 0 21.9 2 25.7 0 22.0 2 25.8 0 22.1 2 25.9 0 22.2 2 22.3 2 POND -2 Version: 5.15 S /N: 1295160123 Executed 08 -12 -1993 09:56:09 » »»» Summary of Hydrograph Volume « ««« Hydrograph: RENOFF1B.HYD Volume = 190,440 cu.ft. 4.37 ac -ft BASIN: OFFSITE 2A (Basin Offsite 2, uncievelnned) 1 t IC TI • 1 I N 1 N. 1 p 2�0 '1 N. N. I , , � SCALE 1 '�' I d . This basin, as shown on the Offsite Drainage Map, is the southeast - facing slope to the south of 16th Avenue and immediately to the northwest of the large drainage easement area. In the present condition, as Basin Offsite 2A, this area consists of undeveloped agricultural land. 1t probably won't remain undeveloped for long, however, since it is within the Preliminary Plat of Ridgemont Estates North. The potential future lot layout, as per the preliminary plat, is shown on the Offsite Drainage Map and is assumed for the developed condition as Basin Offsite 2B. Basin Offsite 2k BASIN DESCRIPTION General Assumptions: BASIN OFFSITE 2 1. Includes entire area of Basin Offsite 2 as shown on the Offsite Drainage Map. 2. Basin is undeveloned 3. Present condition = cultivated fields 4. 16th Avenue 1/2 -width = 20' • Total Area = 367,000 sq. 11. = 8.425 acres • Impervious: 16th Ave. @ 20' wide x 850 LF = 17,000 sq. ft.= 0.39 acres • Pervious: Undeveloped fields = 350,000 sq. 11. = 8.04 acres rewaFF2-A Quick TR -55 Ver.5.45 S/N:1315460151 Executed: 16:40:07 12 -27 -1993 Ridgemont Estates North Basin Offsite 2A (undeveloped farmland) 50 -year storm * * * * * * SUMMARY OF RATIONAL METHOD PEAK DISCHARGES * * * * * * Q = adj * C * I * A Where: Q =cfs, C= Weighted Runoff Coefficient, I =in /hour, A =acres adj = 'C' adjustment factor for each return frequency Subarea Runoff Area Descr. 'C' acres farm fields 0.300 16th Avenue 0.900 so 4 0, b OUc J Jb Tc d5 fro Tc Wtd. (min) 'C' 8.04 0.39 8.38 0.328 8.38 1.1 , RETURN FREQUENCY = 50 years `C' adjustment, k = 1 • Adj. 'C' = Wtd.'C' x 1 Adj. I Total 'C' in /hr acres 0.328 3.524 8.43 Peak Q (cfs) 9.74 Pct- -1 af ZA Quick TR -55 Ver.5.45 S/N:1315460151 Executed: 16:40:07 12 -27 -1993 * * ** Modified Rational Hydrograph * * * ** Weighted C = 0.328 Area= 8.430 acres Tc = 8.38 minutes Adjusted C = 0.328 Td= 100.00 min. I= 0.68 in /hr Qp= 1..88 cfs RETURN FREQUENCY: 50 year storm Adj.factor = 1.00 Output file: RENOFF2A.HYD Time Hours 0.056 0.640 1.223 1.806 Ridgemont Estates North Basin Ofrsite 2A (undeveloped farmland) 50 -year storm Time increment = 0.083 Hours Time on left represents time for first Q in each row. 0.76 1.88 1.88 0.00 HYDROGRAPH FOR MAXIMUM STORAGE For the 50 Year Storm 1.88 1.88 1.88 1.88 1.88 1.88 1.88 1.88 1.88 1.88 1.88 1.88 1.88 1.88 1.88 1.88 1.88 ' 1.12 peviOFF 2A Quick TR -55 Ver.5.45 S/N:1315460151 Executed: 16:40:07 12 -27 -1993 Hydrograph file duration= 100.00 minutes Hydrograph file: RENOFF2A.HYD Weighted `C' RETURN FREQUENCY: 50 yr 0.328 0.328 0.328 0.328 0.328 0.328 0.328 0.328 First peak outflow point assumed to occur at inflow recession leg. Adjusted , 0.328 0.328 0.328 0.328 0.328 0.328 0.328 0.328 MODIFIED RATIONAL METHOD - - -- Summary for Single Storm Frequency - - -- Ridgemont Estates North Basin Offsite 2A (undeveloped farmland) 50 -year storm `C' Adjustment = 1.000 Allowable Q = 0.00 cfs Duration Intens. Areas minutes in /hr acres 8 10 15 20 30 40 50 60 3.524 3.200 2.460 1.980 1.460 1.180 1.000 0.880 8.43 8.43 8.43 8.43 8.43 8.43 8.43 8.43 Qpeak cfs 9.74 8.84 6.80 5.47 4.03 3.26 2.76 2.43 I'c - 8.38 minutes VOLUMES Inflow Storage (cu.ft.) (cuff.) 4,896 5,305 6,117 6,565 7,261 7,825 8,289 8,753 4,896 5,305 6,117 6,565 7,261 7,825 8,289 8,753 ***************************** * * * * * * * * * * *x ** ** *x * * * * * * * * * * *x* Storage Maximum 0.328 0.328 100 0.680 8.43 1.88 I 11,273 11,273 ********************************************* * *Xx * * *x * * * * * * * * * * * * * * * * * * * * * ** BASIN: OFFSITE 28 (Basin Ofsite 2_ develnned) Basin Offsite 2B: BASIN DESCRIPTION General Assumptions: BASIN OFFSITE 2 - continued 1. Basin Unite 2B is the portion of Basin Offsite 2 that is SE of the centerline of 20thAvenue/Limerick Street. 2. Portion of Basin Offsite 2 to the NW of 20t1/Limerick is no longer included. 3. This portion of Preliminary Plat of Ridgemont Estates North will be considered as developed. 4. 12 developed lots will drain to the large easement area. 5. Each lot has 3,000 sq.ft. of louse + driveway; remainder is lawn/landscaped. 6. Road Widths = 40' curb - to-curb • Total Area of Basin Offsite 2B = 296,200 sq. 11. — 6.80 acres • Impervious: 16th Avenue @ 20' wide x 730 LF = 14,600 sq. It 20th/Limerick @ 20' wide x 550 LF = 11,000 sq. ft. Road within plat @ 40' wide x 100 LF = 4,000 sq. f1. Cut - de-sac @u Radius = 45' = 6,362 sq. 11. Total = 35,962 sq. 11. of asphalt pavement 12 lots @ 3,000 sq. It. = 36,000 sq. it of houses + driveways Total Impervious = 35,962 + 36,000 = 71,962 sq. ft. = 1.65 acres • Pervious: 296,200 - 71,962 = 224,238 sq. ft. of pervious land Lawns & Landscaping = 216,138 sq. 11. Undeveloped land at east end of basin = 8,100 sq. ft. Total Pervious = 224,238 sq. ft. = 5.15 acres 6 2? Quick TR -55 Ver.5.45 S/N:1315460151 Executed: 16:31:59 12 -27 -1993 * * * * * * SUMMARY OF RATIONAL METHOD PEAK DISCHARGES * * * * * * Q = adj * C * I * A . Where: Q =cfs, C= Weighted Runoff Coefficient, I =in /hour, A =acres adj = 'C' adjustment factor for each return frequency Subarea Runoff Area Descr. 'C' acres lawn /landscp 0.150 roads /houses 0.900 Ridgemont Estates North Basin Offsite 2B (future developed condition) 50 -year storm 5.15 1.65 Tc Wtd. (min) 'C' 3o (0.o16) o,re OVER D Ta = I (5( = o, 2-9 moo 1/751T J RETURN FREQUENCY = 50 years `C' adjustment, k = 1 Adj. 'C' = Wtd.'C' x 1 Adj. I Total 'C' in /hr acres 1.88 0.332 II 0.332 4.570 6.80 at int-we _ T : Ass w-t E 6 = O. 0-I Fv7v D " �2r Coo) (0.25,) x.68 Fr a _ = 21"° h 074) 5 _ no t".0 45 FIG. t$, ., 4 = t o. Z d- Pr t. L Q Fr.'' (o•o DTs T r - V � $ -° � 95. C.. see- = 1,59 M t,.., - rotAL1c.= o,7-9 +1.59 = 1.88 MIrl cldt ' r s o /. se H IN. = 4. 57 1,.), /Hg. CZA= t0.32- cts 10. c fS ASSVMP•po►J of= D = 0. 29 FT. is OdL Peak Q (cfs) 10.32 gem-offz-1 Quick TR -55 Ver.5.45 S/N:1315460151 Executed: 16:31:59 12 -27 -1993 Time Hours 0.031 0.615 1.198 Ridgemont Estates North Basin Offsite 2B (future developed condition) 50 -year storm * * ** Modified Rational Hydrograph * * * ** Weighted C = 0.332 Area= 6.800 acres Tc = 1.88 minutes Adjusted C = 0.332 Td= 100.00 min. I= 0.68 in /hr Qp= 1.54 cfs RETURN FREQUENCY: 50 year storm Adj.factor = 1.00 Output file: RENOFF2B.HYD Time increment = 0.083 Hours Time on left represents time for first Q in each row. 1.54 1.54 1.54 1.54 1.54 1.54 HYDROGRAPH FOR MAXIMUM STORAGE For the 50 Year Storm 1.54 1.54 1.54 1.54 1.54 1.54 1.54 1.54 1.54 1.54 1.54 1.54 1.54 1.54 0.00 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Quick TR -55 Ver.5.45 S/N:1315460151 Executed: 16:31:59 12 -27 -1993 First peak outflow point assumed to occur at inflow recession leg. RETURN FREQUENCY: 50 yr Hydrograph file duration= 100.00 minutes Hydrograph file: RENOFF2B.HYD Weighted 'C' 0.332 0.332 0.332 0.332 0.332 0.332 0.332 0.332 Adjusted 'C' 0.332 0.332 0.332 0.332 0.332 0.332 0.332 0.332 MODIFIED RATIONAL METHOD - - -- Summary for Single Storm Frequency - - -- Ridgemont Estates North Basin Offsite 28 (future developed condition) 50 -year storm Duration Intens. Areas minutes in /hr acres 2 10 15 20 30 40 50 60 `C' Adjustment = 1.000 Allowable Q = 0.00 cfs 4.570 3.200 2.460 1.980 1.460 1.180 1.000 0.880 6.80 6.80 6.80 6.80 6.80 6.80 6.80 6.80 Qpeak cfs 10.32 7.22 5.55 4.47 3.30 2.66 2.26 1.99 Tc = 1.88 minutes VOLUMES Inflow Storage (cu.ft.) (cu.ft.) 1,164 4,334 4,998 5,364 5,933 6,393 6,773 7,152 1,164 4,334 4,998 5,364 5,933 6,393 6,772 7,152 ***************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** storage Maximum 0.332 0.332 100 0.680 6.80 1.54 I 9,211 9,210 ********************************************* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** BASIN: OFFSITE 3 1 1 14 I th — ` r ► , I Is ► 1 i � I 1 L 1 1\1 _� 1, scALE 1 BASIN OFFSITE 3 This basin consists of the northeast portions of Ridgemont Estates North - 3rd and 4th Additions. Since these two plats are currently being designed, only the developed condition will be considered. Most of the area within these two plats is contained within on -site drainage basins (see Part 1 of this report for 3rd Addition, and see forthcoming Drainage Report for 4th Addition), but the northeast part of each plat will drain to the large drainage easement area via the proposed cul -de -sac at the east end of the road through R.E. North - 4th Addition. Runoff from these plats is calculated for a 10 -year storm event. General Assumptions: BASIN DESCRIPTION 1. Basin is considered as developed. 2. Each lot has 3,000 sq. ft. of house + driveway; remainder is lawn/landscaped. 3. Road widths = 36' curb -to -curb. A. Ridgemont Estates North - 3rd Addition: "Basin 3E" (see Part 1, On -site Basins) • Asphalt Roads = 10,947 sq. R. • 5 Lots @ 3,000 sq. ft. = 15,000 sq. ft. of houses + driveways • Pervious = 44,203 sq. R. of lawns and landscaping B. Ridgemont Estates North - 4th Addition: "Basin 4E" (see 4th Add. Drainage Report) • Asphalt Roads = 15,345 sq. ft. • 4 Lots @ 3,000 sq. ft. = 12,000 sq. R. of houses + driveways • Pervious = 28,610 sq. ft. of lawns and landscaping COMBINED: BASIN OFFSITE 3 TOTALS • Asphalt Roads = 10,947 + 15,345 = 26,292 sq. ft. • Houses + Driveways = 15,000 + 12,000 = 27,000 sq. R. • Lawns and Landscaping = 44,203 + 28,610 = 72,813 sq. ft. Total Impervious = 26,292 + 27,000 = 53,292 sq. ft. = 1.22 acres Total Pervious .= 72,813 sq. ft. = 1.67 acres p-waFF 3 Quick TR -55 Ver.5.45 S/N:1315460151 Executed: 15 :55:56 12 -27 -1993 Subarea Runoff Area Tc Wtd. Descr. 'C' acres (min) 'C' Ridgemont Estates North Basin Offsite 3 (= Basins 3E + 4E, developed condition) 10 -year storm * * * * * * SUMMARY OF RATIONAL METHOD PEAK DISCHARGES * * * * * * Q = adj * C * I * A Where: Q =cfs, C= Weighted Runoff Coefficient, I =in /hour, A =acres adj = 'C' adjustment factor for each return frequency lawn /landscp 0.150 roads /houses 0.900 1.67 1.22 5.19 0.467 RETURN FREQUENCY = 10 years `C' adjustment, k = 1 Adj. 'C' = Wtd.'C' x 1 Adj. . 0.467 I Total in /hr acres 3.123 2.89 Peak Q (cts) 0.4 0. 4 O e- OUihwb T .(55 9S C _ 2•61 Mm.1. 6 cl- T c FROM 5 4-1 • % I p z D:24LE -ta Lew ?r. a r R,11)c42 C evL -0c -:rice ASSvrtE b = O.2-9' A = 'IZ D' _ ' (z ('G) (o.7.1) z = 1.31 F _ 36 -7: 2.,250 ,old z = Zo - 202 -1 • '3 -ra _ o. o i38 k9 G0 F14. 18 "GvIDeuNES -- 3 Q ; 4.2 c.--Ps 4.Z -c-Cs _ - 1.31 z = 3.20 T- = = k 9 : 155 = SEC- Z. SS' 3.zo4s • -> 'rorrt-- Ta • 2. b I + l . 5 8 _ 5 J M NJ C4� : =10 ' 2 S. l9 Mt-'. = 3. i2._"/Hg., Q = C- =A = 4,al c-PS ¢ 2 -Ps A-SS`M?POt'. OFD = 0.2-1 fT. l S 0 L 4.21 3 Quick TR -55 Ver.5.45 S/N:1315460151 Executed: 15:55:56 12 -27 -1993 Ridgemont Estates North Basin Offsite 3 (= Basins 3E + 4E, developed condition) 10 -year storm * * ** Modified Rational Hydrograph * * * ** Weighted C = 0.467 Area= 2.890 acres Tc = 5.19 minutes Adjusted C = 0.467 Td= 100.00 min. I= 0.48 in /hr Qp= 0.65 cfs RETURN FREQUENCY: 10 year storm Adj.factor = 1.00 Output file: RENOFF3 .HYD Time Hours 0.003 0.586 1.170 1.753 Time increment = 0.083 Hours Time on left represents time for first Q in each row. 0.02 0.65 0.65 0.00 HYDROGRAPH FOR MAXIMUM STORAGE For the 10 Year Storm 0.65 0.65 0.65 0.65 0.65 0.65 0.65 0.65 0.65 0.65 0.65 0.65 0.65 0.65 0.65 0.65 0.65 0.62 P- JofF 3 Quick TR -55 Ver.5.45 S/N:1315460151 Executed: 15:55:56 12 -27 -1993 MODIFIED RATIONAL METHOD - - -- Summary for Single Storm Frequency - - -- First peak outflow point assumed to occur at inflow recession leg. Ridgemont Estates North Basin Offsite 3 (= Basins 3E + 4E, developed condition) 10 -year storm RETURN FREQUENCY: 10 yr Hydrograph file duration= 100.00 minutes Hydrograph file: RENOFF3 .HYD Weighted 'C' 0.467 0.467 0.467 0.467 0.467 0.467 0.467 0.467 Adjusted 'C' 0.467 0.467 0.467 0.467 0.467 0.467 0.467 0.467 Duration Intens. Areas minutes in /hr acres 5 10 15 20 30 40 50 60 'C' Adjustment = 1.000 Allowable Q = 0.00 cfs 3.123 2.240 1.770 1.450 1.040 0.820 0.680 0.610 2.89 2.89 2.89 2.89 2.89 2.89 2.89 2.89 Qpeak cfs 4.21 3.02 2.39 1.96 1.40 1.11 0.92 0.82 Tc = 5.19 minutes VOLUMES Inflow Storage (cu.ft.) (cu.ft.) 1,311 1,812 2,148 2,346 2,524 2,654 2,751 2,961 • 1,311 1,812 2,148 2,346 2,524 2,654 2,751 2,961 ***************************** * * * * * ** * * * * * * * * * * * * * * * * * * * * * * ** Storage Maximum 0.467 0.467 100 0.480 2.89 0.65 1 3,884 3,883 **************,****************************** * * * * * * * * * * * * ** * * * * * * * * * * * * * * * ** COMPOSITE HYDROGRAPHS 1 Present Condition (Basins 1A + 2A + 3) 2. Future Condition (Basins 1B + 2B + 3) POND -2 Version: 5.15 S /N: 1295160123 Page 1 of 7 Executed 12 -27 -1993 16:50:47 Data directory: *.HYD File Summary for Composite Hydrograph Time RENOFF1A RENOFF2A RENOFF3 REN -PRE (hrs) (cfs) (cfs) (cfs) (Total) 0.00 0.0 Missing 0.0 0.0 0.10 0.0 1.3 0.6 2.0 0.20 0.0 1.9 0.6 2.5 0.30 0.0 1.9 0.6 2.5 0.40 0.0 1.9 0.6 2.5 0.50 0.0 1.9 0.6 2.5 0.60 0.0 1.9 0.6 2.5 0.70 0.0 1.9 0.6 2.5 0.80 0.0 1.9 0.6 2.5 0.90 0.0 1.9 0.6 2.5 1.00 0.0 1.9 0.6 2.5 1.10 0.0 1.9 0.6 2.5 1.20 0.0 1.9 0.6 2.5 1.30 0.0 1.9 0.6 2.5 1.40 0.0 1.9 0.6 2.5 1.50 0.0 1.9 0.6 2.5 1.60 0.0 1.9 0.6 2.5 1.70 0.0 1.3 0.4 1.7 1.80 0.0 0.1 0.0 0.1 1.90 0.0 0.0 0.0 0.0 2.00 0.0 0.0 0.0 0.0 2.10 0.0 0.0 0.0 0.0 2.20 0.0 0.0 0.0 0.0 2.30 0.0 0.0 0.0 0.0 2.40 0.0 0.0 0.0 0.0 2.50 0.0 0.0 0.0 0.0 2.60 0.0 0.0 0.0 0.0 2.70 0.0 0.0 0.0 0.0 2.80 0.0 0.0 0.0 0.0 2.90 0.0 0.0 0.0 0.0 3.00 0.0 0.0 0.0 0.0 3.10 0.0 0.0 0.0 0.0 3.20 0.0 0.0 0.0 0.0 3.30 0.0 0.0 0.0 0.0 3.40 0.0 0.0 0.0 0.0 3.50 0.0 0.0 0.0 0.0 3.60 0.0 0.0 0.0 0.0 8lig 0.0 0.0 0.0 rKG Et Xr Co►.+Dlrt f) POND -2 Version: 5.15 S /N: 1295160123 Executed 12 -27 -1993 16:50:47 Data directory: *.HYD File Summary for Composite Hydrograph Time RENOFF1A RENOFF2A RENOFF3 REN -PRE (hrs) (cfs) (cfs) (cfs) (Total) 4.00 4.10 4.20 4.30 4.40 4.50 4.60 4.70 4.80 4.90 5.00 5.10 5.20 5.30 5.40 5.50 5.60 5.70 5.80 5.90 6.00 6.10 6.20 6.30 6.40 6.50 6.60 6.70 6.80 6.90 7.00 7.10 7.20 7.30 7.40 7.50 7.60 7.70 7.80 7.90 8.00 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 Page 2 of 7 11 - PC - MT1D - 2 Version: 5.15 S /N: 1295160123 Page 3 of 7 Executed 12 -27 -1993 16:50:47 Data directory: *.HYD File Summary for Composite Hydrograph Time RENOFF1A RENOFF2A RENOFF3 REN -PRE (hrs) (cfs) (cfs) (cfs) (Total) 8.10 0.0 0.0 0.0 0.0 8.20 0.0 0.0 0.0 0.0 8.30 0.0 0.0 0.0 0.0 8.40 0.0 0.0 0.0 0.0 8.50 0.0 0.0 0.0 0.0 8.60 0.0 0.0 0.0 0.0 8.70 0.0 0.0 0.0 0.0 8.80 0.0 0.0 0.0 0.0 8.90 0.0 0.0 0.0 0.0 9.00 0.0 0.0 0.0 0.0 9.10 0.0 0.0 0.0 0.0 9.20 0.0 0.0 0.0 0.0 9.30 0.0 0.0 0.0 0.0 9.40 0.0 0.0 0.0 0.0 9.50 0.0 0.0 0.0 0.0 9.60 0.0 0.0 0.0 0.0 9.70 0.0 0.0 0.0 0.0 9.80 0.0 0.0 0.0 0.0 9.90 0.0 0.0 0.0 0.0 10.00 0.0 0.0 0.0 0.0 10.10 0.0 0.0 0.0 0.0 10.20 0.0 0.0 0.0 0.0 10.30 0.0 0.0 0.0 0.0 10.40 0.0 0.0 0.0 0.0 10.50 0.0 0.0 0.0 0.0 10.60 0.0 0.0 0.0 0.0 10.70 0.0 0.0 0.0 0.0 10.80 0.0 0.0 0.0 0.0 10.90 0.0 0.0 0.0 0.0 11.00 0.0 0.0 0.0 0.0 11.10 0.0 0.0 0.0 0.0 11.20 0.0 0.0 0.0 0.0 11.30 0.0 0.0 0.0 0.0 11.40 0.0 0.0 0.0 0.0 11.50 0.0 0.0 0.0 0.0 11.60 0.0 0.0 0.0 0.0 11.70 0.0 0.0 0.0 0.0 11.80 1.0 0.0 0.0 1.0 11.90 1.0 0.0 0.0 1.0 12.00 7.0 0.0 0.0 7.0 12.10 24.0 0.0 0.0 24.0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 POND -2 Version: 5.15 S /N: 1295160123 Page 4 of 7 Executed 12 -27 -1993 16:50:47 Data directory: *.HYO File Summary for Composite Hydrogr.aph Time RENOFF1A RENOFF2A RENOFF3 REN -PRE (hrs) (cfs) (cfs) (cfs) (Total) 12.20 41.0 0.0 0.0 41.0 12.30 32.0 0.0 0.0 32.0 12.40 19.0 0.0 0.0 19.0 12.50 15.0 0.0 0.0 15.0 12.60 13.0 0.0 0.0 13.0 12.70 11.0 0.0 0.0 11.0 12.80 9.0 0.0 0.0 9.0 12.90 8.0 0.0 0.0 8.0 13.00 8.0 0.0 0.0 8.0 13.10 8.0 0.0 0.0 8.0 13.20 7.0 0.0 0.0 7.0 13.30 6.0 0.0 0.0 6.0 13.40 6.0 0.0 0.0 6.0 13.50 6.0 0.0 0.0 6.0 13.60 6.0 0.0 0.0 6.0 13.70 6.0 0.0 0.0 6.0 13.80 5.0 0.0 0.0 5.0 13.90 5.0 0.0 0.0 5.0 14.00 5.0 0.0 0.0 5.0 14.10 5.0 0.0 0.0 5.0 14.20 4.0 0.0 0.0 4.0 14.30 4.0 0.0 0.0 4.0 14.40 4.0 0.0 0.0 4.0 14.50 4.0 0.0 0.0 4.0 14.60 4.0 0.0 0.0 4.0 14.70 4.0 0.0 0.0 4.0 14.80 4.0 0.0 0.0 4.0 14.90 4.0 0.0 0.0 4.0 15.00 4.0 0.0 0.0 4.0 15.10 4.0 0.0 0.0 4.0 15.20 4.0 0.0 0.0 4.0 15.30 4.0 0.0 0.0 4.0 15.40 4.0 0.0 0.0 4.0 15.50 4.0 0.0 0.0 4.0 15.60 4.0 0.0 0.0 4.0 15.70 4.0 0.0 0.0 4.0 15.80 3.0 0.0 0.0 3.0 15.90 3.0 0.0 0.0 3.0 16.00 3.0 0.0 0.0 3.0 16.10 3.0 0.0 0.0 3.0 16.20 3.0 0.0 0.0 3.0 POND -2 Version: 5.15 S /N: 1295160123 Page 5 of 7 Executed 12 -27 -1993 16:50:47 Data directory: *.HYD File Summary for Composite Hydrograph Time RENOFFIA RENOFF2A RENOFF3 REN -PRE (hrs) (cfs) (cfs) (cfs) (Total) 16.30 3.0 0.0 0.0 3.0 16.40 3.0 0.0 0.0 3.0 16.50 3.0 0.0 0.0 3.0 16.60 3.0 0.0 0.0 3.0 16.70 3.0 0.0 0.0 3.0 16.80 3.0 0.0 0.0 3.0 16.90 3.0 0.0 0.0 3.0 17.00 3.0 0.0 0.0 3.0 17.10 3.0 0.0 0.0 3.0 17.20 3.0 0.0 0.0 3.0 17.30 3.0 0.0 0.0 3.0 17.40 3.0 0.0 0.0 3.0 17.50 3.0 0.0 0.0 3.0 17.60 3.0 0.0 0.0 3.0 17.70 3.0 0.0 0.0 3.0 17.80 3.0 0.0 0.0 3.0 17.90 3.0 0.0 0.0 3.0 18.00 3.0 0.0 0.0 3.0 18.10 3.0 0.0 0.0 3.0 18.20 3.0 0.0 0.0 3.0 18.30 3.0 0.0 0.0 3.0 18.40 3.0 0.0 0.0 3.0 18.50 2.0 0.0 0.0 2.0 18.60 2.0 0.0 0.0 2.0 18.70 2.0 0.0 0.0 2.0 18.80 2.0 0.0 0.0 2.0 18.90 2.0 0.0 0.0 2.0 19.00 2.0 0.0 0.0 2.0 19.10 2.0 0.0 0.0 2.0 19.20 2.0 0.0 0.0 2.0 19.30 2.0 0.0 0.0 2.0 19.40 2.0 0.0 0.0 2.0 19.50 2.0 0.0 0.0 2.0 19.60 2.0 0.0 0.0 2.0 19.70 2.0 0.0 0.0 2.0 19.80 2.0 0.0 0.0 2.0 19.90 2.0 0.0 0.0 2.0 20.00 2.0 0.0 0.0 2.0 20.10 2.0 0.0 0.0 2.0 20.20 2.0 0.0 0.0 2.0 20.30 2.0 0.0 0.0 2.0 POND -2 Version: 5.15 S /N: 1295160123 Page 6 of 7 Executed 12 -27 -1993 16:50:47 Data directory: *.HYD File Summary for Composite Hydrograph Time RENOFF1A RENOFF2A RENOFF3 REN -PRE (hrs) (cfs) (cfs) (cfs) (Total) 20.40 20.50 20.60 20.70 20.80 20.90 21.00 21.10 21.20 21.30 21.40 21.50 21.60 21.70 21.80 21.90 22.00 22.10 22.20 22.30 22.40 22.50 22.60 22.70 22.80 22.90 23.00 23.10 23.20 23.30 23.40 23.50 23.60 23.70 23.80 23.90 24.00 24.10 24.20 24.30 24.40 2.0 0.0 0.0 2.0 2.0 0.0 0.0 2.0 2.0 0.0 0.0 2.0 2.0 0.0 0.0 2.0 2.0 0.0 0.0 2.0 2.0 0.0 0.0 2.0 2.0 0.0 0.0 2.0 2.0 0.0 0.0 2.0 2.0 0.0 0.0 2.0 2.0 0.0 0.0 2.0 2.0 0.0 0.0 2.0 2.0 0.0 0.0 2.0 2.0 0.0 0.0 2.0 2.0 0.0 0.0 2.0 2.0 0.0 0.0 2.0 2.0 0.0 0.0 2.0 2.0 0.0 0.0 2.0 2.0 0.0 0.0 2.0 2.0 0.0 0.0 2.0 2.0 0.0 0.0 2.0 2.0 0.0 0.0 2.0 2.0 0.0 0.0 2.0 2.0 0.0 0.0 2.0 2.0 0.0 0.0 2.0 2.0 0.0 0.0 2.0 2.0 0.0 0.0 2.0 2.0 0.0 0.0 2.0 1.0 0.0 0.0 1.0 1.0 0.0 0.0 1.0 1.0 0.0 0.0 1.0 1.0 U.0 0.0 1.0 1.0 0.0 0.0 1.0 1.0 0.0 0.0 1.0 1.0 0.0 0.0 1.0 1.0 0.0 0.0 1.0 1.0 0.0 0.0 1.0 1.0 0.0 0.0 1.0 1.0 0.0 0.0 1.0 1.0 0.0 0.0 1.0 1.0 0.0 0.0 1.0 1.0 0.0 0.0 1.0 POND -2 Version: 5.15 S /N: 1295160123 Page 7 of 7 Executed 12 -27 -1993 16:50:47 Data directory: *.HYD File Summary for Composite Hydrograph Time RENOFF1A RENOFF2A RENOFF3 REN -PRE (hrs) (cfs) (cfs) (cfs) (Total) 24.50 24.60 24.70 24.80 24.90 25.00 1.0 1.0 1.0 1.0 1.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 1.0 0.0 1.0 0.0 1.0 0.0 1.0 0.0 1.0 0.0 0.0 POND -2 Version: 5.15 S /N: 1295160123 Executed 12 -27 -1993 17:00:22 » »»» Summary of Hydrograph Volume «««« Hydrograph: REN -PRE .HYD Volume = 198,634 cu.ft. 4.56 ac -ft Warning: Incomplete volume -- left side of hydrograph is truncated. (1st Q is > 0.0) 1 POND -2 Version: 5.15 S /N: 1295160123 >»» OUTFLOW HYDROGRAPH ESTIMATOR ««< Inflow Hydrograph: REN -PRE .HYD Qpeak = 41.0 cfs Estimated Outflow: ESTIMATE.EST Qpeak = 2.0 cfs Approximate Storage Volume (computed from t= 0.00 to 23.00 hrs) 107,400 cubic -ft 1 I POND -2 Version: 5.15 S /N: 1295160123 Plotted: 12 -27 -1993 1 Flow (cfs) 0.0 4.0 8.0 12.0 16.0 20.0 24.0 28.0 32.0 36.0 40.0 44.0 . • 1 1 1 1 1 1 1 1 �- 111.5 - * x * x 11.6 - * x * x 11.7 - * x *x 1 11.8 - *x 11.9 - *x x 1 12.0 - x * x 12.1 - x x I 12.2 - x x 12.3 - x 12.4 - x x 1 12.5 - x 12.6 - x x I 12.7 - x x 12.8 - x I x 12.9 - x x I 13.0 - x x 13.1 - x x I 13.2 - x x * 13.3 - x x 13.4 - x x 1 13.5 - x x 13.6 - x 1 TIME (hrs) I File: REN -PRE .HYD Qmax = 41.0 cfs x File: ESTIMATE.EST Qmax = 2.0 cfs 1 * * POND -2 Version: 5.15 S /N: 1295160123 Page 1 of 7 Executed 12 -27 -1993 17:02:32 Data directory: *.HYD File Summary for Composite Hydrograph Time RENOFF1B , RENOFF2B • RENOFF3 REN -FUT (rumitE CoNnrnu (hrs) (cfs) :.(cfs) (cfs) (Total) 0.00 0.0, Missing 0.0 0.0 0.10 0.0 1.5 0.6 2.2 0.20 0.0 1.5 0.6 2.2 0.30 0.0 1.5 0.6 2.2 0.40 0.0. 1.5 0.6 2.2 -0.50. 0.0• 1.5 0.6 2.2 0.60 0.0 1.5 0.6 2.2 0.70 0.0 1.5 0.6 2.2 0.80 0.0 1.5 0.6 2.2 0.90 0.0 1.5 0.6 2.2 1.00 0.0 1.5. 0.6 2.2 1.10 0.0 1.5 0.6 2.2 1.20 0.0 1.5 0.6 2.2 1.30 0.0 - 1.5 0.6 2.2 1.40 0.0 1.5 0.6 2.2 .1.50 0.0 1.5 0.6. 2.2 1.60 0.0 • 1.5 0.6 2.2 1.70 t 0.0 0.0 0.4 0.4 1.80 0.0 0.0.. 0.0 0.0 1.90 0.0 0.0 0.0 0.0 2.00 0.0 -• .0.0 0.0 0.0 2.10 0.0 0.0 0.0 0.0 2.20 0.0 0.0 0.0 0.0 2.30 0.0 0.0 0.0 0.0 2.40 0.0 0.0 0.0 0.0 2.50 0.0 0.0 0.0 0.0 2.60 0.0 0.0 0.0 0.0 2.70 0.0 0.0 0.0 0.0 2.80 0.0 0.0 0.0 0.0 2.90 0.0 0.0 0.0 0.0 3.00 0.0 0.0 0.0 • 0.0 3.10 0.0 0.0 0:0 0.0 3.20 0.0 0.0 0.0 0.0 3.30 0.0 0.0 0.0 0.0 3.40 0.0 0.0 0.0 0.0 3.50 0.0 0.0 0.0 0.0 3.60 0.0 0.0 0.0 0.0 3.70 0.0 0.0 0.0 0.0 3.80 0.0 0.0 0.0 0.0 3.90 0.0 0.0 0.0 0.0 POND -2 Version: 5.15 S /N: 1295160123 Page 2 of 7 Executed 12-27-1993 17:02:32 Data'directory:' *.HYD File Summary for Composite Hydrograph Time RENOFFIB RENOFF2B RENOFF3 REN -FUT (hrs) (cfs) - (cfs) (cfs) (Total) 4.00 0.0 4.10 0.0 4.20 0.0 4.30 0.0 4.40 0.0 4.50 0.0 4.60 0.0 '4:70 . - 0.0 4.80: '4 0.0: 4.90., 0.0 5.00 0.0 5.10 0.0 5.20 0.0 5.30 0.0 5.40 0.0 5.50 0.0 AAA 0.0 5.70 , , 0.0 5.80 0.0 5.90 0.0 6.00 . . 0.0 . , .6.10 6.20 0.0 6.30 0.0. 6.40 0.0 6.50 0.0 6.60 0.0 6.70 0.0 6.80 0..0 6.90 0.0 7.00' . 0.0 7.10 0.0 7.20 '0.0 7.30 0.0 7.40 0.0 7.50 0.0 7.60 0.0 7.70 0.0 7.80 0.0 7.90 0.0 8.00. 0.0 ' 0:0' 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 '0.0 0.0 0.0 0.0 0.0 ' 0.0 0.0 0.0 0.0 0.0 0.0 0.0' 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 '0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 '' 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 POND -2 Version: 5.15 S /N: 1295160123 Page 3 of 7 Executed 12 -27 -1993 17:02:32 Data directory: *.HYD File Summary for Composite Hydrograph Time RENOFF1B RENOFF2B RENOFF3 REN -FUT (hrs) (cfs) . (cfs) (cfs) (Total) 8.10 8.20 8.30 8.40 8.50 8.60 8.70 8.80 8.90 9.00 9.10 9.20 9.30 9.40 9.50 9.60 9.70 9.80 9.90 10.00 10.10 10.20 10.30 10.40 10.50 10.60 10.70 10.80 10.90 11.00 11.10 11.20 11.30 11.40 11.50 11.60 11.70 11.80 11.90 12.00 12.10 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 . '0.0 0.0 0.0 0.0 0.0 0.0' 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 . 0.0 :.0.0 . 0.0 0.0 0.0 0.0 2.0 3.0 5.0 23.0 57.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 . 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 • 0.0 0.0 0.0 0.0 ' 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0. 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 2.0 0.0 3.0 0.0 5.0 0.0 23.0 0.0 57.0 POND -2 Version: 5.15 S /N: 1295160123 Page 4 of 7 Executed 12 -27 -1993 17:02:32 Data directory: *.HYD File Summary for Composite Hydrograph Time RENOFF1B RENOFF2B RENOFF3 REM -FUT (hrs) (cfs) (cfs) (cfs) (Total) 12.20 12.30 12.40 12.50 12.60 12.70 12.80 12.90 13.00 13.10 13.20 13.30 13.40 13.50 13.60 13.70 13.80 13.90 14.00 14.10 14.20 14.30 14.40 14.50 14.60 14.70 14.80 14.90 15.00 15.10 15.20 15.30 15.40 15.50 15.60 15.70 15.80 15.90 16.00 16.10 16.20 35.0 16.0 . 14.0 12.0 10.0 9.0 8.0 8.0:• 7.0 7.0 7.0 6.0 6.0 6.0 6.0 6.0 5.0 5.0 5.0 5.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0 3.0 3.0 3.0 3.0 3.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0:0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0:0 0.0 0.0 0.0 0.0 0.0 0.0 0.0. 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 35.0 0.0 16.0 0.0 14.0 0.0 12.0 0.0 10.0 0.0 9.0 0.0 8.0 0.0 8.0 0.0 7.0 0.0 7.0 0.0 7.0 0.0 6.0 0.0 6.0 0.0 6.0 0.0 6.0 0.0 6.0 0.0 5.0 0.0 5.0 0.0 5.0 0.0 5.0 0.0 4.0 0.0 4.0 0.0 4.0 0.0 4.0 0.0 4.0 0.0 4.0 0.0 4.0 0.0 4.0 0.0 4.0 0.0 4.0 0.0 4.0 0.0 4.0 0.0 4.0 0.0 4.0 0.0 4.0 0.0 4.0 0.0 3.0 0.0 3.0 0.0 3.0 0.0 3.0 0.0 3.0 POND -2 Version: 5.15 S /N: 1295160123 Page 5 of 7 Executed 12 -27 -1993 17:02:32 Data directory: *.HYD File Summary for Composite Hydrograph Time RENOFF1B RENOFF2B RENOFF3 REN -FUT (hrs) (cfs) (cfs) (cfs) (Total) 16.30 16.40 16.50 16.60 16.70 16.80 16.90 17.00 17.10 17.20 17.30 17.40 17.50. 17.60 17.70 17.80 17.90 18.00 18.10 18.20 18.30 18.40 18.50 18.60 18.70 18.80 18.90 19.00 19.10 19.20 19.30 19.40 19.50 19.60 - 19.70 19.80 19.90 20.00 20.10 20.20 20.30 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 3.0 0.0 3.0 0.0 3.0 0.0 3.0 0.0 3.0 0.0 3.0 0.0 3.0 0.0 3.0 0.0 3.0 0.0 3.0 0.0 3.0 0.0 3.0 0.0 3.0 0.0 3.0 0.0 3.0 0.0 3.0 0.0 3.0 0.0 3.0 0.0 3.0 0.0 3.0 0.0 3.0 0.0 3.0 0.0 2.0 0.0 • 2.0 0.0 2.0 0.0 2.0 0.0 2.0 0.0 2.0 0.0 2.0 0.0 2.0 0.0 2.0 0.0 2.0 0.0 2.0 0.0 2.0 0.0 2.0 0.0 2.0 0.0 2.0 0.0 2.0 0.0 2.0 0.0 2.0 0.0 2.0 POND -2 Version: 5.15 S /N: 1295160123 Page 6 of 7 Executed 12 -27 -1993 17:02:32 Data directory: *.HYD File Summary for Composite Hydrograph Time RENOFFIB RENOFF2B RENOFF3 REN -FUT (hrs) (cfs) (cfs) (cfs) (Total) 20.40 2.0 0.0 0.0 2.0 20.50 2.0 0.0 0.0 2.0 20.60 2.0 0.0 0.0 2.0 20.70 2.0 0.0 0.0 2.0 20.80 2.0 0.0 0.0 2.0 20.90 2.0 0.0 0.0 2.0 21.00 2.0 0.0 0.0 2.0 21.10 , 2.0 0.0 0.0 2.0 21.20 2.0 0.0 0.0 2.0 21.30 2.0 0.0 0.0 2.0 -21.40 2.0 0.0 0.0 2.0 21.50 2.0 0.0 0.0 2.0 21.60 2.0 0.0 0.0 2.0 21.70 2.0 0.0 0.0 2.0 21.80 2.0 0.0 0.0 2.0 21.90 2.0' 0.0 0.0 2.0 22.00 2.0 0.0 0.0 2.0 22.10 2.0 0.0 0.0 2.0 22.20 2.0 0.0 0.0 2.0 22.30 2.0 0.0 0.0 2.0 22.40 2.0 0.0 0.0 2.0 22.50 2.0 x ,,,...0.0 0.0 2.0 22.60 2.0 0.0 0.0 2.0 22.70 2.0 0.0 0.0 2.0 22.80 2.0 0.0 0.0 2.0 22.90 2.0 0.0 0.0 2.0 23.00 2.0 0.0 0.0 2.0 23.10 '1.0 0.0 0.0 1.0 23.20 1.0 0.0 0.0 1.0 23.30 1.0 0.0 0.0 1.0 23.40 1.0 - 0.0 0.0 1.0 23.50 1.0 0.0 0.0 1.0 23.60 1.0 . 0.0 0.0 1.0 23.70 1.0 0.0 0.0 1.0 23.80 1.0 0.0 0.0 1.0 23.90 1.0 0.0 0.0 1.0 24.00 1.0 0.0 0.0 1.0 24.10 1:0 0.0 0.0 1.0 24.20 1.0 0.0 0.0 1.0 24.30 1.0 0.0 0.0 1.0 24.40 1.0 0.0 0.0 1.0 POND -2 Version: 5.15 S /N: 1295160123 Page 7 of 7 Executed 12 -27- 1993 17:02:32 Data directory: *.HYD File Summary for Composite Hydrograph Time RENOFF1B RENOFF2B RENOFF3 REN -FUT (hrs) (cfs). (cfs) (cfs) (Total) 24.50 24.60 24.70 24.80 24.90 25.00 1.0 1.0 1.0 1.0 1.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0:0 0.0 0.0 0.0 0.0 0.0 1.0 1.0 1.0 1.0 1.0 0.0 POND- 2.Version: 5.15 S /N: 1295160123 Executed 12 -27 -1993 • .•17:07:49 >>>>»» Summary.of.Hydrograph Volume «««« Hydrograph: REN -FUT .HYD Volume = • Warning: •Incomplete volume - -.left side of hydrograph is truncated. (1st Q is > 0.0) 203,202 cu.ft. 4..66..,ac -ft POND -2 Version: 5.15 S /N: 1295160123 >>>>> OUTFLOW.HYDROGRAPH ESTIMATOR ««< Inflow Hydrograph: REN -FUT .HYD Qpeak = 57.0 cfs Estimated Outflow: ESTIMATE.EST Qpeak •_ ' 2.0 cfs Approximate Storage Volume (computed from t= 0.00 to 23.00 hrs) 112,000 cubic -ft 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 POND -2 Version: 5.15 S /N: 1295160123 Plotted: 12 -27 -1993 Flow (cfs) 0.0 6.0 12.0 18.0 24.0 30.0 36.0 42.0 48.0 54.0 60.0 66.0 • 1 1 1 1 I 1 I I 1 1 �- 11.3 - *x *x 11.4 - *x *x 11.5 - *x *x 11.6 - *x x 11.7 - x* x* 11.8 - x * x * 11.9 - x * x 12.0 - x x 12.1 - x x 12.2 - x x. 12.3 - x x 12.4 - x x 12.5 - x x 12.6 - x x 12.7 - x x 12.8 - x x 12.9 - x x * 13.0 - x x * 13.1 - x x 13.2 - x x 13.3 - x x * * * * * TIME (hrs) * File: REN -FUT .HYD Qmax = 57.0 cfs x File: ESTIMATE.EST Qmax = 2.0 cfs * * T, conditions follows: This Agreement SRS/9408.021 q ;1C _ � -1 �� * 'zinC� l ,� a0509 f ru4 rusk 'I +aa._ V o l DEt EASEMENT AGREEMENT is made and 9 ^d1 -94- entered into by and between R & INC., a Washington Corporation, Alfons B. Renz and Hilda E. Renz, husband and wife (hereinafter collectively referred "Renz ") and Spokane County, a political subdivision of of Washington (hereinafter referred to as "County "). RECITALS the County entered into to as the State 1. Renz and a Storm Drainage Easement and Right -of -Way Agreement dated February 9, 1978 and recorded under Spokane County Auditor's No. 8004140245. 2. Renz and the County desire to terminate the Easement referred to in paragraph 1 above and concurrently substitute and replace it with this Agreement. NOW, THEREFORE, in consideration of mutual covenants and contained wherein, Renz and the County agree as 1. The Storm Drainage Easement and Right -of -Way Agreement referred to in Recital Paragraph 1 above is hereby terminated and replaced in its entirety with this Agreement. 2. Concurrently with said termination, Renz does hereby convey to Spokane County an Easement over, under, upon and across the property described in Exhibit "A" attached hereto and incorporated herein by this reference for the purpose of conveying and disposing of storm water and drainage run off originating on or flowing through property described in Exhibit "E" attached hereto and incorporated herein by this reference (hereinafter referred to as "Developed Property "). 3. Notwithstanding the provisions of paragraph 2 above, it is specially understood and agreed that the drainage easement -1- may receive the natural flow of water from undeveloped area within the drainage basin for this easement identified in that certain study performed by Simpson Engineers, Inc. in conjunction with Project Nos. P -16848 and P -1684C on file with the Spokane County Engineer. Upon thirty days notice by Spokane County to the owner of the property described in Exhibit "A" and to the person or entity responsible for operation and maintenance of the drainage facilities, the description of the developed property in Exhibit "B" shall be expanded to include any newly platted or divided properties within the drainage basin. 4. Renz agrees to install at facilities on the easement as described approved plans Office. Upon submit to the SRS /9408.021 on file with completion of the -2- its expense drainage and in accordance the Spokane County drainage facilities, County Engineer "as- constructed plans" with Engineer's Renz shall stamped by a licensed professional engineer. Renz shall reimburse Spokane County for all costs, expenses and fees incurred by the County approving the plans for and inspecting the drainage facilities. 5. Ridgemont Estates North 3rd and 4th Additions Homeowners Association (hereinafter "Homeowners Association ") shall be responsible for the operation maintenance and repair of said drainage facilities for the Developed Properties described in Exhibit "B ", including but not limited to maintaining a cover of dryland type grasses within the pond, keeping any ditches open and clean, keeping the drywells free of debris and silt, and routinely inspecting the drainage facilities. Optional shrubbery and /or trees may be planted within the drainage easement provided there is no obstruction of flow or storm water percolation. It is specifically understood and agreed, however, that in the event additional properties are added to the description of Developed Properties in Exhibit "8 ", the owners of said additional properties shall be required to annually reimburse the Homeowners Association for the cost of operation, maintenance and repair of said facilities on a pro rata basis. The Pro rata annual reimbursement costs for such additional properties shall be determined as follows: in Exhibit County. SRS/9408.021 Pro rata share = annual maintenance cost x F. F = number of lots added to the service area + (number of lots added to service area + number of lots in Ridgemont Estates North 3rd and 4th Addition). Spokane County may, at its option and at any time hereafter, assume responsibility for operation, maintenance and repair of the drainage facilities and may charge the owners of lots in the service area the pro rata costs of such operation, maintenance and repair as provided for in this agreement. 6. Spokane County may, without the consent or approval of Renz, transfer and convey its interest in this Agreement to the Spokane County Storm Water Utility. Upon thirty (30) days written notice to Spokane County, Renz may convey title to the property described in Exhibit "B" to the Homeowners Association. The owner of said property shall not grade, pave or otherwise develop said property, nor obstruct the flow of drainage and storm water in a manner inconsistent with the approved drainage plans for the property described on Exhibit "A ", without the express written consent of Spokane County. With the County's consent, the owner of the property described may convey title to such property to Spokane 7. Renz grants and conveys to Spokane County an easement for ingress and egress to, over and from the drainage easement for the purpose of routine inspection and emergency maintenance and repair of the drainage facilities. -3- 8. If the Homeowners Association fails to maintain and operate the drainage facilities in good working order, Spokane County may give written notice of such failure to the Homeowners Association and if such failure is not corrected within the period indicated in said notice, Spokane County shall have the right correct said maintenance failure or compel such failure to be corrected at the expense of the Homeowners Association. 9. If the facilities are damaged due to the negligence or intentional act of any party to this Agreement, that party shall be responsible for the cost of repairing such damage and for indemnifying the other parties of this Agreement against all damages, costs, suits, claims and expenses arising out of or caused by such negligence or intentional act. 10. Renz and the Homeowners Association hereby agree to indemnify Spokane County for all damages, including inverse condemnation, that any property, real or personal, caused by resulting - from the deficient construction of the drainage facilities or the failure of Homeowners Association to properly maintain and operate said facilities. 11. The owner of the property described on Exhibit "A" shall timely pay and keep current all taxes and assessments levied against such property, and shall keep such property free of all liens and security interests. 12. The easements granted herein shall respectively run with the property described in Exhibit "A" and "B" hereto and the provisions of this Agreement shall be binding upon and inhere to the benefit of the successors and interest of the parties to this Agreement. 13. Any action that law, suit and equity or judicial proceeding for the enforcement of this Agreement or any SRS/9408.021 -4- provision hereto shall be instituted only in a court of competent jurisdiction within Spokane County, Washington. 14. This Agreement is complete and in total agreement of the parties and may not be modified except through a written Agreement executed with the same formalities as the present Agreement. ALFONS B. RENZ, by D ytd W. Renz his Attorney -in -Fact HILDA E.•RENZ, by Dtd W. Renz her Attorney -in -Fact R & T, INC . By _- Its' DATED: , 199. SPOKANE COUNTY A political subdivision of the State of Washington By STATE OF WASHINGTON ) ss. County of Spokane ) I certify that I know or have satisfactory evidence that DAVID W. RENZ signed this instrument as attorney -in -fact of ALFONS B. RENZ, and acknowledged it to be the free and voluntary act of said ALFONS B. RENZ, for the uses and purposes mentioned in the instrument, and on oath stated that the power of attorney authorizing the execution of this instrument has not been revoked, and that said ALFONS B. RENZ is now living. NOT Y ,pUBLIC f and for the State of Wa hington , esiding at Spokane My oin'tmen expires :Tipp) STATE OF WASHINGTON ) ss. County of Spokane I certify that I know or have satisfactory evidence that DAVID W. RENZ signed this instrument as attorney -in -fact of HILDA E. RENZ, and acknowledged it to be the free and voluntary act of said HILDA E. RENZ, for the uses and purposes mentioned in the instrument, and on oath stated that the power of attorney authorizing the execution of this instrument has not been revoked, and that said HILDA E. RENZ is now living. DATED: < --+ 7[", DATED: , 1994. SRS/9408.021 , 199. NOTA Y yUBLIC and for the State Of Washington, esiding at Spokane My- appointmen expires: H r STATE OF WASHINGTON ) ss. County of Spokane ) Z certify that I know or have satisfactory evidence that ci\LS' is the person who appeared before me, and said person acknowledged that he signed this instrument, on oath stated that he was authorized to execute the instrument and acknowledged it, as the of SPOKANE COUNTY, to be the free and voluntary act of such party for the uses and purposes mentioned in the instrument. NOTARY PUBLIC in and for the State of Washington, residing at Spokane My appointment expires: -6- STATE OF WASHINGTON ) County of Spokane ) SRS/9408.021 ss. I certify that I know or have satisfactory evidence that -14 Nt\wii, 7 ,/ is the person who appeared before me, and said person acknowledged that he signed this instrument, on oath stated that he was authorized to execute the instrument and acknowledged it, as the ,ryrp,_.:,\,,,,,k, of R & T, INC., to be the free and voluntar act of such party for the uses and purposes mentioned in the instrument. DATED: cl,c t , A 2,0N , 1994. NOTARY `R -fn 'and for the State of Washixgton residing at Spokane My appoa- ntment expires: ZI , Iq -7- EXHIBIT A DRAINAGE EASEMENT /. J A drainage pond retention site easement over that portion of the NE 1/4 of the NW 1/4 and t , 1/4 of the NE 1/4 of Section '25, T. 25 N., R. 44 E.W.M., in Spokane County, Washingto ' fixing more particularly described as follows: , ',- Begin at a point that is S 89 °16'42 "E, a distance of 626.35 feet from the N 1/4 co • r of said Section 25, said point being common to the North boundary of said Section 25 and the s[ boundary of Leo N. Cashatt and others, as established by a survey performed by Adams Engineering in 1976; thence, along said Cashatt West boundary, the following two (2) courses, S 30 °08'12 "E a distance of 152.25 feet: thence S 50 °22'25 "E a distance of 26.00 feet; thence S 52 °30'00 "W a distance of 135.07 feet; thence S 30 °22'00 "E a distance of 119.42 feet; thence S 56 °26'16 "W a' distance of 40.06 feet; thence N 30 °22'00 "W a distance of 116.74 feet: thence S 52 °38'00 "W "a distance of 307.71 feet; thence S 50 °22'00 "E a distance of 151.82 feet: thence S 39 °26'16 "W a distance of 40.00 feet; thence N 50 °22'00 "W a distance of 161.19 feet; thence S 45 °39 "W a distance of 349.84 feet: thence S 50 °33'44 "E a distance of 199.11 feet: thence S 39 °26'16 "W a distance of 40.00 feet: thence N 50 °33'44 "W a distance of 203.47 feet: thence S 45 °39'33 "W a distance of 84.90 feet; thence S 76 °35'00 "W a distance of 144.00 feet; thence S 07 °35'00 "W a distance of 89.92 feet to the East line of the Future Plat of Ridgemont Estates North 3rd - Addition; thence N 02 °51'52 "W, along said East line. a distance of 215.89 feet to a point on a nontangent curve concave to the West with, a radius of 50.00 feet and a radial bearing of S 44 °22'04 "E, said point being on the Easterly line of the Future Plat of Ridgemont Estates North 4th, the next 2 courses along said Easterly line: thence Northeasterly, Northerly and Northwesterly through a central'angle of 119 °08'01 ". an arc distance of 103.96 feet; thence N 16 °29'55 "E, radial to said curve. a distance of 28.10 feet: thence N 56 °18'15 "E a distance of 248:44 feet: thence N 32 °00'54 "E a distance of 244.68 feet: thence N 76 °30'08 "E a distance of 154.57 feet, thence N 54 °00'44 "E a distance of 186.55 feet: thence N 62 °14'59 "E a distance of 149.00 feet; thence N 26 °59'32 "E a distance of 29.57 feet to the South right of way (R/W) of 16th Avenue and a point on a curve concave to the Northwest with a radius of 495.72 feet and a radial bearing of S 16 °02'48 "E; thence Northeasterly along said South R/W. through a central angle of 3 °15'02 ", an arc distance of 28.12 feet: thence S 89 °09'28 "E 25.38 feet to the Point of Beginning. Contains 6.24 Acres ��EXHIB B Ridgemont :Estates North, 3rd=and4t Additions aDq FTLac*t 91 3.109 EASEMENT AGREEMENT This Agreement is made and entered into by and between R & T, INC., a Washington Corporation, Alfons B. Renz and Hilda E. Renz, husband and wife (hereinafter collectively referred to as "Renz ") and Spokane County, a political subdivision of the State of Washington (hereinafter referred to as "County "). RECITALS 1. Renz and the County entered into a Storm Drainage Easement and Right -of -Way Agreement dated February 9, 1978 and recorded under Spokane County Auditor's No. 8004140245. 2. Renz and the County desire to terminate the Easement referred to in paragraph 1 above and concurrently substitute and replace it with this Agreement. NOW, THEREFORE, in consideration of mutual covenants and conditions contained wherein, Renz and the County agree as follows: 1. The Storm Drainage Easement and Right -of -Way Agreement referred to in Recital Paragraph 1 above is hereby terminated and replaced in its entirety with this Agreement. 2. Concurrently with said termination, Renz does hereby convey to Spokane County an Easement over, under, upon and across the property described in Exhibit "A" attached hereto and incorporated herein by this reference for the purpose of conveying and disposing of storm water and drainage run off originating on or flowing through property described in Exhibit "B" attached hereto and incorporated herein by this reference (hereinafter referred to as "Developed Property "). 3. Notwithstanding the provisions of paragraph 2 above, it is specially understood and agreed that the drainage easement SRS/9408.021 -1- may receive the natural flow of water from undeveloped area within the drainage basin for this easement identified in that certain study performed by Simpson Engineers, Inc. in conjunction with Project Nos. P -16848 and P -1684C on file with the Spokane County Engineer. Upon thirty days notice by Spokane County to the owner of the property described in Exhibit "A" and to the person or entity responsible for operation and maintenance of the drainage facilities, the description of the developed property in Exhibit "B" shall be expanded to include any newly platted or divided properties within the drainage basin. 4. Renz agrees to install at its expense drainage facilities on the easement as described and in accordance with approved plans on file with the Spokane County Engineer's Office. Upon completion of the drainage facilities, Renz shall submit to the County Engineer "as- constructed plans" stamped by a licensed professional engineer. Renz shall reimburse Spokane County for all costs, expenses and fees incurred by the County approving the plans for and inspecting the drainage facilities. 5. Ridgemont Estates North 3rd and 4th Additions Homeowners Association (hereinafter "Homeowners Association ") shall be responsible for the operation maintenance and repair of said drainage facilities for the Developed Properties described in Exhibit "B ", including but not limited to maintaining a cover of dryland type grasses within the pond, keeping any ditches open and clean, keeping the drywells free of debris and silt, and routinely inspecting the drainage facilities. Optional shrubbery and /or trees may be planted within the drainage easement provided there is no obstruction of flow or storm water percolation. It is specifically understood that in the event additional properties description of Developed Properties in SRS/9408.021 -2- and agreed, however, are added to the Exhibit "B ", the owners of said additional properties shall be required to annually reimburse the Homeowners Association for the cost of operation, maintenance and repair of said facilities on a pro rata basis. The Pro rata annual reimbursement costs for such additional properties shall be determined as follows: Pro rata share = annual maintenance cost x F. F = number of lots added to the service area + (number of lots added to service area + number of lots in Ridgemont Estates North 3rd and 4th Addition). Spokane County may, at its option and at any time hereafter, assume responsibility for operation, maintenance and repair of the drainage facilities and may charge the owners of lots in the service area the pro rata costs of such operation, maintenance and repair as provided for in this agreement. 6. Spokane County may, without the consent or approval of Renz, transfer and convey its interest in this Agreement to the Spokane County Storm Water Utility. Upon thirty (30) days written notice to Spokane County, Renz may convey title to the property described in Exhibit "B" to the Homeowners Association. The owner of said property shall not grade, pave or otherwise develop said property, nor obstruct the flow of drainage and storm water in a manner inconsistent with the approved drainage plans for the property described on Exhibit "A ", without the express written consent of Spokane County. With the County's consent, the owner of the property described in Exhibit "B" may convey title to such property to Spokane County. 7. Renz grants and conveys to Spokane County an easement for ingress and egress to, over and from the drainage easement for the purpose of routine inspection and emergency maintenance and repair of the drainage facilities. SRS/9408.021 -3- 8. If the Homeowners Association fails to maintain and operate the drainage facilities in good working order, Spokane County may give written notice of such failure to the Homeowners Association and if such failure is not corrected within the period indicated in said notice, Spokane County shall have the right correct said maintenance failure or compel such failure to be corrected at the expense of the Homeowners Association. 9. If the facilities are damaged due to the negligence or intentional act of any party to this Agreement, that party shall be responsible for the cost of repairing such damage and for indemnifying the other parties of this Agreement against all damages, costs, suits, claims and expenses arising out of or caused by such negligence or intentional act. 10. Renz and the Homeowners Association hereby agree to indemnify Spokane County for all damages, including inverse condemnation, that any property, real or personal, caused by resulting from the deficient construction of the drainage facilities or the failure of Homeowners Association to properly maintain and operate said facilities. 11. The owner of the property described on Exhibit "A" shall timely pay and keep current all taxes and assessments levied against such property, and shall keep such property free of all liens and security interests. 12. The easements granted herein shall respectively run with the property described in Exhibit "A" and "B" hereto and the provisions of this Agreement shall be binding upon and inhere to the benefit of the successors and interest of the parties to this Agreement. 13. Any action that law, suit and equity or judicial proceeding for the enforcement of this Agreement or any SRS/9408.021 -4- provision hereto shall be instituted only in a court of competent jurisdiction within Spokane County, Washington. 14. This Agreement is complete and in total agreement of the parties and may not be modified except through a written Agreement executed with the same formalities as the present Agreement. et«�� ( ALFONS B. RENZ, by D W. Renz his Attorney -in -Fact HILDA E.'RENZ, by Dkd W. Renz her Attorney -in -Fact R & T, INC. BYv Fr Its STATE OF WASHINGTON ) ss. County of Spokane ) I certify that I know or have satisfactory evidence that DAVID W. RENZ signed this instrument as attorney -in -fact of ALFONS B. RENZ, and acknowledged it to be the free and voluntary act of said ALFONS B. RENZ, for the uses and purposes mentioned in the instrument, and on oath stated that the power of attorney authorizing the execution of this instrument has not been revoked, and that said ALFONS B. RENZ is now living. DATED: A, \ , 199 pOTI of Wa My ap SPOKANE COUNTY A political subdivision of the State of Washington By -- a ..i Y ,PUBLIC i and for the State hington, esiding at Spokane oThtm expires:7141gs STATE OF WASHINGTON ) ss. County of Spokane I certify that I know or have satisfactory evidence that DAVID W. RENZ signed this instrument as attorney -in -fact of HILDA E. RENZ, and acknowledged it to be the free and voluntary act of said HILDA E. RENZ, for the uses and purposes mentioned in the instrument, and on oath stated that the power of attorney authorizing the execution of this instrument has not been revoked, and that said HILDA E. RENZ is now living. DATED: C 17 1 , 199. : Ctil �.i rrn1 / NOT Y y.UBLICN and for the State Qf Wa biington, esiding at Spokane My — a ointment expires: Z!Lk IqC' STATE OF WASHINGTON ) ss. County of Spokane ) Z certify that I know or have satisfactory evidence that i i r k,, (ice - z is the person who appeared before me, and said person acknowledged that he signed this instrument, on oath stated that he was authorized to execute the instrument and acknowledged it, as the of SPOKANE COUNTY, to be the free and voluntary act of such party for the uses and purposes mentioned in the instrument. DATED: , 1994. SRS /9408.021 NOTARY PUBLIC in and for the State of Washington, residing at Spokane My appointment expires: -6- STATE OF WASHINGTON ) County of Spokane ) ss I certify that I know or have satisfactory evidence that ` 4 N 1/\. \."[r1'✓ is the person who appeared before me, and said person acknowledged that he signed this instrument, on oath stated that he was authorized to execute the instrument and acknowledged it, as the l<_ rQ h of R & T, INC., to be the free and voluntaract of such party for the uses and purposes mentioned in the instrument. DATED: ' 2.0 , 1994. ( / NOTARY UBLIC— fn'and for the State of Waashi gtQn, residing at Spokane My appoa- ntment expires: Z T C . SRS/9408.021 -7- EXHIBIT A DRAINAGE EASEMENT A drainage pond retention site easement over that portion of the NE 1/4 of the NW 1/4 and the NW 1/4 of the NE 1/4 of Section 25, T. 25 N., R. 44 E.W.M., in Spokane County, Washington, being more particularly described as follows: Begin at a point that is S 89 °16'42 "E, a distance of 626.35 feet from the N 1/4 corner of said Section 25, said point being common to the North boundary of said Section 25 and the West boundary of Leo N. Cashatt and others, as established by a survey performed by Adams Engineering in 1976; thence, along said Cashatt West boundary, the following two (2) courses. S 30 °08 "E a distance of 152.25 feet; thence 5 50 °22'25 "E a distance of 26.00 feet; thence 5 52 °30'00 "W a distance of 135.07 feet; thence 5 30 °22'00 "E a distance of 119.42 feet; thence S 56 °2616 "W a distance of 40.06 feet; thence N 30 °22'00 "W a distance of 116.74 feet; thence 5 52 °38'00 "W a distance of 307.71 feet; thence 5 50 °22'00 "E a distance of 151.82 feet; thence S 39 °26'16 "W a distance of 40.00 feet; thence N 50 °22'00 "W a distance of 161.19 feet; thence 5 45 °39'33 "W a distance of 349.84 feet; thence 5 50 °33'44 "E a distance of 199.11 feet; thence 5 39°26'16"W a distance of 40.00 feet; thence N 50 °33'44 "W a distance of 203.47 feet; thence 5 45 °39'33 "W a distance of 84.90 feet; thence S 76 °35'00 "W a distance of 144.00 feet; thence S 07 °35'00 "W a distance of 89.92 feet to the East line of the Future Plat of Ridgemont Estates North 3rd Addition; thence N 02 °51'52 "W, along said East line, a distance of 215.89 feet to a point on a nontangent curve concave to the West with a radius of 50.00 feet and a radial bearing of S 44 °22'04"E, said point being on the Easterly line of the Future Plat of Ridgemont Estates North 4th, the next 2 courses along said Easterly line; thence Northeasterly. Northerly and Northwesterly through a central angle of 119°08'01", an arc distance of 103.96 feet; thence N 16 °29'55 "E, radial to said curve, a distance of 28.10 feet; thenee N 56 °18'15 "E a distance of 248.44 feet; thence N 32 °00'54 "E a distance of 244.68 feet; thence N 76 °30'08 "E a distance of 154.57 feet; thence N 54 °00'44 "E a distance of 186.55 feet; thence N 62°14 a distance of 149.00 feet: thence N 26 °59'32 "E a distance of 29.57 feet to the South right of way (R/W) of 16th Avenue and a point on a curve concave to the Northwest with a radius of 495.72 feet and a radial bearing of S 16 °02'48 "E; thence Northeasterly along said South R/W, through a central angle of 3 °15'02 ", an arc distance of 28.12 feet; thence S 89 °09'28 "E 25.38 feet to the Point of Beginning. Contains 6.24 Acres EXHIBIT B Ridgemont Estates North, 3rd and 4th Additions S P O K A N 6 OFFICE OF THE COUNTY ENGINEER • Ronald C. Hormann, P.E., County Engineer Dennis M. Scott, P.E., Director Date: August 23, 1994 To: Ray Moon Right -of -Nay Memorandum From: Dean Franz, P.E. �} Development Services Subject: Ridgemont Estates North 3rd S 4th Add. Drainage Easement (P -1684) C O U N T y A DIVISION OF THE PUBLIC WORKS DEPARTMENT Attached are the following items, which you requested. • Title report of properties which will be encumbered by easement. • Name of Homeowner's Association. • Copy, of front page of existing drainage easement, which will be eliminated by new easement. Please review the proposed new easement document which was provided to you earlier today. If there are any changes needed, please mark them on the document. Once your review is complete, I will give a copy to our attorney, Ron Arkills, for final input. Please do not request the signators to sign the document until our attorney is allowed to have input. If you need anything else please let me know. 1026 W. Broadway Ave. • Spokane, WA 99260 -0170 • (509) 456 -3600 FAX: (509) 324 -3478 'I'DD: (509) 324 -3166 A drainage pond retention site easement over that portion of the Northeast quarter of the Northwest quarter and the Northwest quarter of the Northeast quarter of Section 25, Township 25 North, Range 44 East, W.M., being more particularly described as follows: BEGIN at a. point that is. South 89 °16'42" East, a distance of 626.35 feet from the North quarter corner of said Section 25, said point being common to the North boundary of said Section 25 and the West boundary of Leo N. Cashatt and others, as established by a survey performed by Adams Engineering in 1976; thence along said Cashatt West boundary, the following two (2) courses, , South 30 °08'12" East, a.distance of 152.25 feet; thence South 50 °22'25" East, a distance of 26.00 feet; thence South 52 °30'00" West a distance of 135.07 feet; thence South 30 °22'00" East, a distance of 119.42 feet; thence South 56 °26'16" West, a distance of 40.06 feet; thence North 30. °22'00" West, a distance of 116.74 feet; thence South 52 °38'00" West, a distance of 307.71 feet; thence South 50 °22'00" East, a distance of 151.82 feet; thence South 39 °26'16" West, a distance of 40.00 feet; thence North 50 °22'00" West, a distance of 161.19 feet; thence South 45 °39'33" West, a distance of 349.84 feet; thence South 50 °33'44" East, a distance of 199.11 feet; thence South 39 °26'16" West, a distance of 40.00 feet; thence North 50 °33'44" West, a distance of 203.47 feet; thence South 45 °39'33" West, a distance of 84.90 feet; thence South 76 °35'00" West, a distance of 144.00 feet; thence South 07 °35'00" West, a distance of 89.92 feet to the East line of the Future Plat of Ri.d4_emont Estates North 3rd Addition; thence North 02 °51'52" West, along said East line, a distance of 215.89 feet to a point on a nontangent curve concave to the West with a radius of 50.00 feet and a radial bearing_ of South 44 °22'04" East, said point being on the Easterly line of the Future Plat of Ridgemont Estates North 4th, the next 2 courses along said Easterly line;_ thence Northeasterly, Northerly and Northwesterly through a central angle of 119 °08'01 ", an arc distance of 103.96 feet; thence North 16 °29'55" East, radial to said curve, a distance of 28.10 feet; thence North 56 °18'15" East, a distance of 248.44 feet; thence North 32 °00'54" East, a distance of 244.68 feet; thence North 76 °30'08" East, a distance of 154.57 feet; thence North 54 °00'44" East, a distance of 186.55 feeti thence North 62 °14'59" East, a distance of 149.00 feet; thence North 26 °59'32" East, a distance of 29.57 feet to the South right of way (R /W) of 16th Avenue and a point on a curve concave to the Northwest with a radius of 495.72 feet and a radial bearing of South 16 °02'48" East, thence Northeasterly along said South R /W, through a central angle of 3 °15'02 ", an arc distance of 28.12 feet; thence South 89 °09'28" East, 25.38 feet to the Point of Beginning; Situate in the County of Spokane, State of Washington; A drainage pond retention site easement over that portion of the Northeast quarter of the Northwest quarter and the Northwest quarter of the Northeast quarter of Section 25, Township 25 North, Range 44 East, W.M., being_ more particularly described as follows: BEGIN at a point that is South 89 °16'42" East, a distance of 626.35 feet from the North quarter corner of said Section 25, said point being common to the North boundary of said Section 25 and the West boundary of Leo N. Cashatt and others, as established by a survey performed by Adams Engineering in 1976; thence along said Cashatt West boundary, the following two (2) courses, South 30 °08'12" East, a.distance of 152.25 feet; thence South 50 °22'25" East, a distance of 26.00 feet; thence South 52 °30'00" West a distance of 135.07 feet; thence South 30 °22'00" East, a distance of 119.42 feet; thence South 56 °26'16" West, a distance of 40.06 feet; thence North 30 °22'00" West, a distance of 116.74 feet; thence South 52 °38'00" West, a distance of 307.71 feet; thence South 50 °22'00" East, a distance of. 151.82 feet; thence South 39 °26'16" West, a distance of 40.00 feet; thence North 50 °22'00" West, a distance of 161.19 feet; thence South 45 °39'33" West, a distance of 349.84 feet; thence South 50 °33'44" East, a distance of 199.11 feet; thence South 39 °26'16" West, a distance of 40.00 feet; thence North 50 °33'44" West, a distance of 203.47 feet; thence South 45 °39'33" West, a distance of 84.90 feet; thence South 76 °35'00" West, a distance of 144.00 feet; thence South 07 °35'00" West, a distance of 89.92 feet to the East line of the Future Plat of Ridgemont Estates North 3rd Addition; thence North 02 °51'52" West, along said East line, a distance of 215.89 feet to a point on a nontangent curve concave to the West with a radius of 50.00 feet and a radial bearing_ of South 44 °22'04" East, said point being on the Easterly line of the Future Plat of Ridgemont Estates North 4th, the next 2 courses along said Easterly line;. thence Northeasterly, Northerly and Northwesterly through a central angle of 119 °08'01 ", an arc distance of 103.96 feet; thence North 16 °29'55" East, radial to said curve, a distance of 28.10 feet; thence North 56 °18'15" East, a distance of 248.44 feet; thence North 32 °00'54" East,"'a. distance of 244.68 feet; thence North 76 °30'08" East, a distance of 154.57 feet; thence North 54 °00'44" East, a distance of 186.55 feetf thence North 62 °14'59" East, a distance of 149.00 feet; thence North 26 °59'32" East, a distance of 29.57 feet to the South right of way (R /W) of 16th Avenue and a point on a curve concave to the Northwest with a radius of 495.72 feet and a radial bearing of South 16 °02'48" East, thence Northeasterly along said South R /W, through a central angle of 3 °15'02 ", an arc distance of 28.12 feet; thence South 89 °09'28" East, 25.38 feet to the Point of Beginning; Situate in the County of Spokane, State of Washington; DflhII1h:.0 Lh!LI:CI11 271.320 sq IL c \ 7 / '- / / \ b \\ \ 1 r 1` t0 I I ) \ 6 / / ! c ///7 \ L ' C / • • 1 • f I ` \ / / _ I I • /` / I 1 11 _ _- / 1 • • / /\ • / \ ..`1 \ \ • • • 6 \ \ � , �„_.... 1 I to \ * • 1 H S ONE • UMEL a6a D:51huCF f • I1 1.:E2355 5 40 110 L' j �'\ / , 1 * CO L2 5:5'3 33 ry 00 \ \ 1 I , • 1 y 13 5- 3'?r1E'N 4400 00' 1/ \ \ L5 5 14 ' -v1 W 0 \ • 1 1 1 '�__ • L5 56'Z616 26 D6'0 1 I /// • \ ▪ 1 —� '�1 ,G 550'2225'1 2 600 ' 1 • • * ` 3 N. / /'� *I � � TS M I. p, K� 1 h -DIUS �I:I:G111-. 1)119WCI DCI ,' ,� I CI SC OL /_J 10.`bti BS n' \ ]:B G6 GI �// _ * 1 1 I • 1 *' / r 1*, .._ --. 1 L�_ 1* • / / "11 , 1 I *, • • i 1 • ,/ / // 1 I —1 I ' k I 1-_ 1 I y 1 1 r- I ) ;' c, • _tto -mss (4iOCAel tiles P)) 4 sfot fp - gait 3d Ad a"._AwkrasedrAc1 S ASo SxL._. JI 2311i124 O 2E , 25- 1- r 11 7 ' J 3 N 1 X 55 jIr,. 1 - . ✓a. I a..1 4!.9 °1' 7°4v'- LO Trl its./ M. ° r � I a S39"- 2r JL' SEC 25125. N.R.44 E . -1. .f. 26.3.- • ) 4 SCA 45 44! 11.0 4 : ; ' { - / \ H., 1"= 4O0FT.._ t Go , - 7 8639'.7' 3 7 Iq 0 * \ X1 7 5 .._ C , � ; 4 /ti '/cr. .- �� -� =�.. O. /3 1 . . to ri 3 23 ,,a - ▪ / • : a 1 i , 3 ;r ....::i i � e a ,i n �.. 4 1 1 13 ✓\ ,1 I V t 5 �. ' _1 i '.j13 7 1 4 BM 19 / E C.Un 4.251 PREPARED FOR: T.D.C. INC. ATTN: DAVE REUG E. 12929 SPRAGUE TRANSAMERICA TITLE INSURANCE COMPANY 720 NORTH ARGONNE SPOKANE, WASHINGTON 99212 (509) 922- 2222/FAX 926 -1519 LIMITED LIABILITY CERTIFICATE page 1 of 5 Order No.: MW- 188569M Charge: Tax: Total: RE: RENT, & R & T INC. This is a report as of August 9, 1994, at 8:00 A.M., covering the property hereinafter described. The information contained herein is made solely for the purpose of determining the status of the property described herein, is restricted to the use of the addressee, and is not to be used as a basis for closing any transaction affecting title to said property. Liability is limited to the charge made for this certificate. RECEIVED AUG 161994 SPOKANE COUNTY ENGINEER 5175.00 14.00 $189.00 DESCRIPTION: Situate in the County of Spokane, State of Washington; page 2 of 5 Order No.: MW- 188569 A drainage pond retention site easement over that portion of the Northeast quarter of the Northwest quarter and the Northwest quarter of the Northeast quarter of Section 25, Township 25 North, Range 44 East, W.M., being more particularly described as follows: BEGIN at a point that is South 89 °16'42" East, a distance of 626.35 feet from the North quarter corner of said Section 25, said point being common to the North boundary of said Section 25 and the West boundary of Leo N. Cashatt and others, as established by a survey performed by Adams Engineering in 1976; thence along said Cashatt West boundary, the following two (2) courses, South 30 °08'12" East, a distance of 152.25 feet; thence South 50 °22'25" East, a distance of 26.00 feet; thence South 52 °30'00" West a distance of 135.07 feet; thence South 30 °22'00" East, a distance of 119.42 feet; thence South 56 °26'16" West, a distance of 40.06 feet; thence North 30 °22'00" West, a distance of 116.74 feet; thence South 52 °38'00" West, a distance of 307.71 feet; thence South 50 °22'00" East, a distance of 151.82 feet; thence South 39 °26'16" West, a distance of 40.00 feet; thence North 50 °22'00" West, a distance of 161.19 feet; thence South 45 °39'33" West, a distance of. 349.84 feet; thence South 50 °33'44" East, a distance of 199.11 feet; thence South 39 °26'16" West, a distance of 40.00 feet; thence North 50 °33'44" West, a distance of 203.47 feet; thence South 45 °39'33" West, a distance of 84.90 feet; thence South 76 °35'00" West, a distance of 144.00 feet; thence South 07 °35'00" West, a distance of 89.92 feet to the East line of the Future Plat of Ridgemont Estates North 3rd Addition; thence North 02 °51'52" West, along said East line, a distance of 215.89 feet to a point on a nontangent curve concave to the West with a radius of 50.00 feet and a radial bearing of South 44 °22'04" East, said point being on the Easterly line of the Future Plat of Ridgemont Estates North 4th, the next 2 courses along said Easterly line; thence Northeasterly, Northerly and Northwesterly through a central angle of 119 °08'01 ", an arc distance of 103.96 feet; thence North 16 °29'55" East, radial to said curve, a distance of 28.10 feet; thence North 56 °18'15" East, a distance of 248.44 feet; thence North 32 °00'54" East, a distance of 244.68 feet; thence North 76 °30'08" East, a distance of 154.57 feet; thence North 54 °00'44" East, a distance of 186.55 feet; thence North 62 °14'59" East, a distance of 149.00 feet; thence North 26 °59'32" East, a distance of 29.57 feet to the South right of way (R /W) of 16th Avenue and a point on a curve concave to the Northwest with a radius of 495.72 feet and a radial bearing_ of South 16 °02'48" East, thence Northeasterly along said South R /W, through a central angle of 3 °15'02 ", an arc distance of 28.12 feet; thence South 89 °09'28" East, 25.38 feet to the Point of Beginning; VESTED IN: R & T, INC., a Washington Corporation, as to a portion; and ALFONS B. RENZ, also shown of record as A.B. RENZ and ALFONS RENZ and HILDA E. RENZ, also shown of record as HILDA RENZ and EVA RENZ, husband and wife, as to a portion. EXCEPTIONS: 1. General taxes, as follows, together with interest, penalty and statutory foreclosure costs, if any, after delinquency: (1st half delinquent on May 1; 2nd half delinquent on November 1) Tax Account No. Year Amount Billed Amount Paid Principal Balance 45255.9065 1994 $4,104.88 $4,104.88 $0.00 (Covers property herein described and other property) 2. Assessments levied by Spokane County for Storm Water, together with interest, penalty and statutory foreclosure costs, if any, after delinquency: (1st half delinquent on May 1; 2nd half delinquent on November 1) Tax Account No. Year Amount Billed Amount Paid Principal Balance 45255.9065 1994 $10.00 3. Any unpaid assessments or charges, and liability for further assessments or charges by Vera Irrigation District No. 15. 4. Liability to future charges by Spokane County for Storm Water service. 5. LETTER OF COMMITMENT AND THE TERMS AND CONDITIONS THEREOF: BETWEEN: AND: DATED: RECORDED: RECORDING NO.: REGARDING: AFFECTS: page 3 of 5 Order No.: MW- 188569 $ $0.00 Alfons B. Renz and Eva Renz Spokane County Commissioners October 18, 1974 7410180104 Not build on property South of Rotchford acre Tracts in said Section 25 until said property is platted This and other property 6. AGREEMENT AND THE TERMS AND CONDITIONS THEREOF: BETWEEN: AND: DATED: RECORDED: RECORDING NO.: REGARDING: AREA AFFECTED: 7. AGREEMENT AND THE TERMS AND CONDITIONS THEREOF: BETWEEN: AND: DATED: RECORDED: RECORDING NO.: REGARDING: Order No.: MW- 188569 Alphons B. Renz and Hilda E. Renz, Indemnitors Spokane County, Indemnitee December 10, 1975 December 12, 1975 7512120290 To indemnify and release the indemnitee from all actions attributable to the indemnitee locating, establishing, constructing, operating, maintaining and all matters incidental thereto, the drainage control system in conjunction with Ridgemont Estates. NW1 /4 of Sec. 25, lying NWly of Ridgemont Estates. Spokane County, a political subdivision of the State of Washington Sullivan South Enterprises, a Washington general partnership, and Alfons B. Renz and Hilda E. Renz, husband and wife September 15, 1988 September 21, 1988 8809210088 Sewerage system 8. STORM DRAINAGE EASEMENT AND RIGHT -OF -WAY AGREEMENT AND THE TERMS AND CONDITIONS THEREOF: BETWEEN: AND: PURPOSE: AREA AFFECTED: DATED: RECORDED: RECORDING NO.: page 4 of 5 Alfons B. Renz and Hilda E. Renz, husband and wife Spokane County, a municipal corporation Storm Drainage This and other property April 14, 1980 8004140245 Order No.: MW- 188569 9. potential liability for assessments levied by Spokane County Utility Department for the Aquifer Protection Area. To verify, call 458 -2538. In order to make payment, account number is necessary. sac TRANSAMERICA TITLE INSURANCE COMPANY By page 5 of 5 Maureen Wild, Title Officer 7910180104 LETTER OF COMMITMENT TO: Spokane County Commissioners ' Spokane County Courthouse Spokane,Washington 99201 ft 208 rut 878. EILE9 OR RECUROEB 2C9.UCSi0FC proeecutin Attorney's office Oct 18 11 25 F11 '74 1 ":"'pl w / :raxu:a caul: n. i /f7,/le' 4r ru rr Req. Courthouse xxx GENTLEMEN: We are informed that the owners of certain real property which is described in Schedule "A" attached to this letter, are submitting for approval a plat for that property in which proposed plat the said property is described as' "Rotchford - Acre,Tracts ". A copy of the proposed plat has been examined personally by the undersigned. - We are the owners of the property which is located immediately adjacent on the south to the property described in Schedule "A" (Ratchford Acre Tracts). The description of our property is set forth in Schedule "B" attached. • The undersigned, to accomodate the platting of the "Rotchford Acre Tracts" property, has heretofor delivered to Spokane County a deed for property to be used as a roadway which conveyance covers property described in Schedule "C" attached. It is recognized that the "Rotchford Acre Tracts" plat will not be approved without the undersigned having accepted the commitment that no part of their property described in Schedule "B" which fronts on the County road (running east and west) which is adjacent to said property on the north, shall be used as building sites without approval of Spokane County having first been obtained in writing or until a plat for said property (Schedule "B ") or some part thereof adjacent to said roadway shall have been approved by the County of Spokane. Now therefore; the undersigned, having recognized benefits which will accrue to them and their property as a result of the platring of "Rotchford Acre Tracts" do hereby r..al:e a - cocmitment to the County of Spokane that, if the plat for "Rotchford Acre Tracts" is approved, they, their heirs, or successors in ownership will not permit any part of their property described in Schedule "B" which fronts on the roadway referred to above, of which the property described in Schedule "C" is the south one half thereof, to be used as a building site unless and until a plat for said adjacent property shall have been approved or until consent for the use thereof for building sites shall have been otherwise approved in writing by the County of Spokane. It is agreed that the commitment made by the undersigned, as is herein defined, shall run with the lard described in Schedule "8 ". =Eva' Benz ee S Accepted O and i ap p pr r ov K ed ofor Core re COUNTY OF SPOKANE By \YW. CHRISTENSEN Pte• ( /Q�� __.. i Aifona'O. Reitz yoYr'� , 1974 ry Public he .",.ate of .4ashington, residirr at Spokane Inn SU 1 of L 24 :i : + : ":1' ton'. portion no;, no _ate co Contra: v.'L__. _n Elise ScnocL ;a_ .... :r.;tx t the 3 / S:C :c r: oL : Wes: 350 _- 5:: 1/4r r.. r. 1/4 cf ti+, __ 1.4 _.___`n of Scco an _srt' 3a:cr: _ : : n a ;c'_nt :.i Ia th line of Scotian 12, 24C4 .ea_ _.t of tna northwest carat= of so:_ 3'. - - ^,• fo - • n =i E _ i 9 :1 tooth fu 2. a to fen t: c_.. " tcc -,J i4 /ll _t: Cosmetic, . i93 fact: - e-_.: •s. -..Q : %as in north ly direction 427 fact to 1 - a - ilia rotor line C_ 5GGO = -___ _ ]i .. _. .. _r.l. r•Ort!:aast :tine: of stou .... _., a. -..._ '. L cot :lc id suction 1n of .0 ` _ o • _ • • i,LL •i In o" :nship 25 North, Range 4 Zant of __a,.pe .'Ierlulan In the tn. ` nhfnnrnn. • • . _. --n t . coo .s ry ,y.. • -fn. r. .Y„ nf• • . A.nufl.Ae^<• bmb ..a.11 .. In n to tart. F. I rmo. ♦ t nuL M.. 1p ..• .Ul nu - _ 0.•u. W 1. .14.Y.. nf. • .nt.1f. YW w Lr�.r . .•... I. • •room Y:1 �.• ' 1 f.l. : In a+ r f% l'n a.:.. y I•. ;`1.! ,f+ .',nor nos ' . % lo rm..) two . . ° trt . .•r,A,11 .; j; ;, w . : . .Ixiv .. •• 1 • w n.....v. ... . ma : n.u ^ . 1• ...f.e I °.. `T • . „ II t`^ - .nos h.. .. v -'� • .. .. it:MO m wino. tr. r/• ••• ••nu .uu..n. V u tor. rn....l t ....... .4 .Inns -• .. shd :•• 911317! rArr.oe.eannLna. sn M. u' • El VJAA�' :4' • ' 11 • /..y t 4..) Mat won 4V .r .. 41.4a host IW.. I.+ 1,1.1. ur.r -1.11 I .. ..... . .. 7n: 209 put 873 X / `33 3 y * �f "1 i. zu9 fltE 814 3 S - 3o J 6 • : � (w 411 4 • 4,,'?,0" 1 Se 1 , is 209 +uE 875 A strip of land lying in the NW 1/4 and the NE I /4.a! Section 25, Township 25 North, Range 44 East, W. td., Spokane County, Washington, descriLed cs follows: e.„ ZS_ 8cgi string et o point an the north line of. said NW 1 which bean $2p % .S 20.00 feel from the northwest corner of said NW 1.'4; thence South, along the east right -of -way line of Sullivan Road, 30.00 feet. thence 559 "E, on o lino which is 30 feet southerly measured at right cngles and parallel to be north line of sold NW 1/4, 2610.17 feet, thence S89 ° 16'44 "E, on line which is 30 feet southerly meosured et right angles and porallel to she north line of said NE 1/4, 431.42 leer to the point of curve of o 495.73 Feel radios curve to the left; thence along the arc of sold curve to the left, 173.34 feet, through o central angle of 20 to an intersection with :he north tine of said NE 1 /4; thence along the north line of said Section 25. N39 ° 16'44 "W, 601.23 feet and N89 "W, 2610.52 feet to the point of beginning. stY N. JU W I T N E S S E T H: 2 4 ooNi'75 •25 deg INDEMNITY AGREEMENT - tp• =:1 /l x.;.".°16 47_ THIS INDEMNITY AGREEMENT nado and entered into by an". between Alphons B. Renz and Hilda E..Renz, husband and wife, residing at South 2700 Sullivan Road, ieradale, Washington 99537, hereinafter referred to as the "Indemaltors' and Spokane Ccurty, a political aubdivlsiun of the State of Washington, having offices for the transaction of business at West 1115 Broadway, Spokane, Was.`.ingtcn 99201, hereinafter referred to an the " "Indemniteo", Jointly hereinafter referred to along with the ,Irdemnlcort as the "Parties'. WHEREAS, the Board of County Commissioner: of Spokane County has the care of County property and the management of County funds; and WHEREAS, the Board of County Commissioners of Spokane County pursuant to the Revised Code of Washington, Chapter 5 3.17 (Flats-- Subdivisions -- Dedications) in approving plats may require condition.: therein for the health, safety, and welfare of the public; and WHEREAS, applicable departments within Spokane Count; have approved a drainage control aystem in conjunction with Renz subdivision, to be recorded as Rldgenont Estates, and designated as PE 963 by appropriate County departments; Ind WHEREAS, for the correct operation of said drainage control system various easements on properties owned by the Irdemnitors hereinabove were obtained; and WHEREAS, in conjunction with casements granted by the indeer.itors hereinabove, the portico hereto desire to execute an agreement releasing the indennitee from any and all losses k. E @eso lu lsem�, ar "1":,/ ' ' a /'tc i,.n f . 'vPi, en!) PACE.Ctbl to the property, both real and personal, owned by the ICdemnitora which may be damaged or injured in anyway as a result of the Indennitce maintaining any drainage control systems on the Runz Subdivision, to be recorded as Rldgemont Estates, or the Indemnitors' property adjacent thereto; MOW, THEREFORE, in consideration of 31.00 and other gaud and valuable consideration, receipt of which in hereby acknowledged, it is hereby agreed: SECTION 1 -- LIABILITY, LOSS OR DAMAGE The Indemnitors undertake to lndcenify and release the Indemnitce from any and all actions, demands, costs, expensoa,_j compensation, and all claims of every kind or nature whatsoever a4e./: � to their perzon or property (real and personal) Including inverse condemnation /arising out of or incident to or attributable to the Indemnitee Iodating, establishing, construct- ing, operating, maintaining, repairing, and all matters incidental thereto, the drainage control system in conjunction with Benz Subdivision a /k/a Ridgemont Estates. SECTION 2 -- DESCRIPTION OP REAL PROPERTY • The real property, including all encumbrances attached and located thereon, which is owned by the Indemnitors, and which 1s the subject of this indemnity agreement 1s described as follows: The NW 1/4 of Section 25. T. 255.. R.44 E.W.M. Fat EST any land lying Southeasterly of the Nortnwesterly lire of RSdgemont Estates. — SECTtOU 3 — RUN WITH THE LAND This indemnity agreement shall run with the land herein above described, and shall be binding on and shall inure to tho benefit of the parties hereto, their heirs, successors, or assign:. SECTION 4 -- ENTIRE AGREEMENT This indemnity agreement contains'Ehe entire agreement beadven Inc partite floral() and the terms are contrautual and not merely a recital. The undersigned Indemniters state that they have care- fully read the foregoing indemnity agreement, and know the con- tents thereof, and they have signed the some as their own free acts. IN WITNESS WHEREOF, the parties hereto have caused this agreement to be executed on the !". day of c\ci / 7. •, -1 , • .. •- •. : • s. 9 o A; ATTEST; / VERNON ic ona 1 / 4 .1 1 ,(D•. C1,r»o the B Deputy -Clerk STATE 0? WASHINGTON) ) 93. COWS? 0? SPOKANE) STATE OF WASHINGTON) ) Ss. ray.:ry nr tanvInr ) INDEOUTORS r ._; INDEMNITEE SPOKANE COUNTY, a municipal corporation BOARD OF COUNTY COMMISSIONERS • • NI 250 ,,,1287 1 1 ! • :.• On this day personally appeared before me Altons 5. Benz and Hilda E. Renz, nusband and wife, to me known to be the individuals described in and who executed the within and fore- going instrument, and acknowledged that they signed the same as their free and voluntary act and deed, for the uses and purposes therein mentioned. GIVEN under my hand and official seal this 7)...--.4..-- • 1975. ' • A # :7 ,..Y 4 : 1 ■67.1 C :S:t .. . . / . 4' Vicif il:-• Net .y Public in/and for the.Stacw..."*. of aahington,.residing at SpOkane..• •,/ Fee. 250 EIZE 1263 1975. 38 -0835 tare il= 1:... .. e (o „f Scrit 9tjAN16 e''111 SPOKANE COUNTY SEWERAGE AGREEMENT )5 AMfcr'W1 4rtB1 SAMPSON // THIS AGREEMENT, made and entered into the /5`7; day of 1988, by and between SPOKANE COUNTY, a political subdivision of the State of Washington, having offices for the transaction of business at West 1116 Broadway Avenue, Spokane, Washington, 99260, hereafter referred as the "County ", and SULLIVAN SOUTH ENTERPRISES. a Washington general partnership, hav ng offices for the transaction of business at f /2-9 if fi w.y f , Spokane, Washington, 997/6, and ALFONS B. REUZ AND HILDA E. BENZ, husband and wife, South 2205 Carnine Court, Vcradale, Washington, 99037, hereinafter referred to as the "Owners ", jointly referred to, as the "Parties ". 88 n. 994 Pitt 1133 W I T N E S S E T H: WHEREAS, pursuant to the provisions of the Revised Code of Washington, Section 16.32.120(6), the Board of County Commis- sioners of Spokane County, has the care of County property and the management of County funds and business; and WHEREAS, pursuant to the provisions of Chapter 36.94 RCW, Spokane County has the ability to construct, operate, and maintain a system of sewerage within Spokane County consistent with the adopted Comprehensive Waste Water Management Plan; and WHEREAS, Owners are the legal owners of certain real estate located at the northeast corner of Sullivan Road and 24th Avenue, Spokane County, as more particularly described in Attachment "A ", attached hereto and incorporated by reference herein, and hereinafter referred to as the "Property "; and WHEREAS, Owners have made application for a preliminary plat of the Property, to be known as Ridgemont Estates Fourth Addition, and are desirous of subdividing the Property with the availability to connect to the.County's general sewerage system; and WHEREAS, the County is desirous of extending a system of sewerage from Sullivan Road and 24th Avenue through the Property, to the Tamberlane and Ridgemont Subdivisions, for the purpose of connecting said subdivisions to the County's general sewerage system; and WHEREAS, Owners are willing to provide the County with perpetual easements through the Property, in - an alignment acceptable to Owners and the County Utilities Department, and with appropriate access thereto, in order to allow for installation of Page - 1 iii: 994 r t 1134 a sewerage system through the Property; and the County is willing to make said sewerage system available for connection to future lots within the Property, in a manner consistent with Owners' subdivision plans, upon certain terms and conditions; NOW, THEREFORE, for and in consideration of the mutual promises set forth hereinafter, the Parties hereto mutually agree as follows: Section 1: PURPOSE The County is desirous of constructing a sewerage system, hereinafter referred to as the "Facilities ", through the property, which Facilities will be made available to provide sanitary sewer service to lots within the Property when it is subdivided, as well as connecting the adjacent and existing Timberlane and Ridgemont subdivisions to the County's general sewerage system. Owners are willing to grant to the County perpetual easements, free of encumbrances and with appropriate access, running through the Property in an alignment acceptable to the County, in considera- tion of the County paying all costs for the design and construc- tion of such Facilities. Owners and their successors hereby acknowledge an obligation to pay the County's General Facilities Charge ("GFC "), monthly service charges, and an In Lieu of Assessment charge (ILA), as specified herein, upon connection of the Property, or future lots therein, to the Facilities. It is the intent of this Agreement to reduce to writing the Parties' agreement with respect to the conveyance of easements to the County, the design and construction of the Facilities, and related matters. Section 2: CAPITAL CONSTRUCTION The County shall be responsible for the design and construc- tion of the Facilities, generally described as 8 ", 10" and 12" sanitary sewer pipe, and necessary appurtenances thereto. The Facilities are deemed to be a benefit to the public. The design and construction of the Facilities will be in accordance with all applicable Federal, State and Local laws, ordinances, and regulations. The County shall install "Ts" at appropriate locations within the Facilities designated by Owners; however, the County shall not be obligated to install side sewer connection lines from the "Ts" to individual lots, which shall be the Owners' responsibility to install. All manholes installed within the Facilities shall be designed and constructed to include a one foot I1') concrete ring section in order to facilitate adjustment of the manholes to a proper elevation at such time as roads are constructed within the Property. Page - 2 Owners agree to grant to the County perpetual easements in the property, free of any encumbrances, along with temporary access easements thereto, all as specifically Indicated on Attachment "B ", attached hereto and incorporated by reference herein. Owners agree, within ten (10) days of written request by the County, to execute any and all necessary perpetual easement(s), temporary construction easement permits, access easements, or any other documents required of Owners under the terms of this Agreement. Section 3: USE OF CONSTRUCTED SUBDIVISION SEWER FACILITY Only the Owners of the Property, or subsequent owners, and their successors, assigns or heirs, shall be permitted or author- ized under this Agreement, to tap into or use the Facilities. Owners shall be responsible for the design and construction of any other facilities on the Property, other than the Facilities to be constructed by the County as described herein, that may be necessary in order to use or connect to the Facilities, in conjunction with the subdividing of the Property. As owner of the Facilities, the County may allow, at its sole discretion, other persons, firms or corporations outside the Property to tap into or use the Facilities. Additionally, as owner, the County will be responsible for maintenance and operation of the Facilities once constructed and accepted by the County. All users of the Facilities shall pay a monthly Main- tenance and Operation Fee as established by the Board of County Commissioners. Section 4: PAYMENT OF GFC AND ILA This section shall apply only to those residential lots which result from approved subdivision of the Property, and which are adjacent to the Facilities and connectable by side sewer thereto. The owner of each lot at the time of hook -up to the County's general sewerage system shall pay the County's General Facilities Charge (GFC) that is current at that time, reduced by any County participation moneys then applicable to reduce said charge (the present GFC amount equals $770.00 for residential properties, currently reduced by a forty percent (40%) County subsidy, leaving $462.00 payable by the property owner). Each lot owner at the time of hook -up shall also pay an In Lieu of Assessment charge (ILA). This charge is deemed equivalent to the special benefit that the County's sewerage system is determined to provide to parcels of land within the most recent County ULID, reduced by applicable County participation moneys. Page - 3 [l. 0U4 5: . 51 113 5 Under this Agreement, the ILA payable at the time of hook -up shall be permanently fixed at $1,500.00 the special benefit for residential parcels within a ULID is currently $2,500.00, which amount is currently reduced by a forty percent (40%) County subsidy, leaving a balance of $1,500.00 payable). Each lot within the Property connecting directly, or indirectly, to the Facilities shall receive a credit of $700.00 against the ILA amount at the time of hook -up. This credit given by the County is in consideration of Owners' granting to the County perpetual easements at the east and west terminus of the East -West Sewer line easements, as indicated on Attachment "0 ", the loss of crop revenues to Owners, engineering expenses previously incurred by Owners, the nuisance of the sewer line passing through the Property prior to subdivision and the reduction in value of certain private lots within the Property due to the County easements. A further credit of $500.00 shall be allowed against the ILA to each lot owner at the time of hook -up to compensate for the County's not installing side sewer lines connecting the "Ts" to individual lots, as would be the case if the County was installing a ULID sewerage system (the amount of this additional credit amount is based upon the average cost of installing a side sewer connection, estimated as approximately $500.00, from bids received recently). The GFC applicable under County ordinance or resolution at the time of hook -up of an individual lot shall be the amount payable, less any County participation moneys applicable to reduce said amounts at the time of hook -up. The GFC amount may increase or change from present figures due to periodic adjustments by the County, and the level of applicable participation moneys may also be reduced or change according to County policy. The combined $1200.00 credit allowed future lot owners shall remain constant, as will the ILA amount. Section 5: COMPLIANCE WITH LAWS The Parties hereto specifically agree to observe all federal, state and local laws, ordinances and regulations, including, but not necessarily limited to, chapter 49.60 RCM, to the extent that they may have any bearing on either providing any money under the terms of this Agreement or the services actually provided under the terms of this Agreement. Section 6: MODIFICATION No modification or amendment of this Agreement shall be valid until the same is reduced to writing and executed with the same formalities as this present Agreement. Page - 4 PH. . 994 ref 1136 'lfl 994 me 1137 Section 7: VENUE STIPULATION This Agreement has and shall be construed as having been made and delivered in the State of Washington, and the laws of the State of Washington shall be applicable to its construction and enforcement. Any action at law, suit in equity or judicial proceeding for the enforcement of this Agreement or any provision hereto shall be instituted only in courts of competent jurisdic- tion within Spokane County, Washington. Section 8: WAIVER No officer, employee, agent or otherwise of the County has the power, right or authority to waive any of the conditions or provisions to this Agreement. No waiver of any breach of this Agreement shall be held to be a waiver of any other or subsequent breach. All remedies afforded in this Agreement or at law shall be taken and construed as cumulative, that is, in addition to every other remedy provided herein or by law. Failure of the County to enforce at any time any of the provisions of this Agreement or to require at any time performance by the Contractor of any provision hereof shall in no way be construed to be a waiver of such provisions, nor in any way affect the validity of this Agreement or any part hereof, or the right of the County to hereafter enforce each and every such provision. Section 9: ALL WRITINGS CONTAINED HEREIN This Agreement contains all the terms and conditions agreed upon by the Parties. No other understandings, oral or otherwise, regarding the subject matter of this Agreement shall be deemed to exist or to bind any of the Parties hereto. Owners have read and understand all of this Agreement, and now state that no represen- tation, promise or agreement not expressed in this Agreement has been made to induce Owners to execute the same. Section 10: TERMINATION The County shall have no obligation of any kind or nature whatsoever to either design or construct the Facilities described hereinabove until Owners have granted to the County that right -of- way and /or perpetual easements and /or construction easement(s) as proved for hereinabove. Subsequent to the granting of such right - of-way, perpetual easementls), and /or construction ease- ment(s), respectively, neither Party may terminate this Agreement for any reason whatsoever. Section 11: TIME I5 OF TES ESSE?ICE Time is of the essence of this Agreement. If either Party shall fail to perform the Agreement on his part to be performed, Page - 5 at the time fixed for performance, the other Party may exercise any right as proved for herein. Section 12: RECORDING This Agreement, upon execution by both Parties, shall be recorded In the Spokane County Auditor's Office. The provisions within this Agreement shall run with the Property, and bind the Owners and their successors, assigns and heirs. IN WITNESS WHEREOF the Parties hereto have caused this Agreement to be executed on the day and year first set forth above. ATTEST: WILLIAM E. DONAHUE, Clerk of the Board B-• Deputy Clerk STATE OF WASHINGTON ) ) ss County of Spokane ) On this /•; day of /2( (. / 1988, personally appeared before me /k,1.,,..'L. ')' ,. to me known to be Page - 6 BOARD OF COUNTY COMMISSIONERS OF SPOKANE COUNTY, WASHINGTON SULLIVAN SOUTH ENTERPRISES, a Washington general partnership 13"%Nc N•10. m91._k =1. °N• 994 MC( 1138 i[I. 1��I'1 ter. )Title) C , 1 the . /i ��� � It• �( C ' a .. of the above -named general partnership that executed the within and foregoing instrument, and ac- knowledged said instrument to be the free and voluntary act and deed of said general partnership, for the uses and purposes therein mentioned, and on oath stated that he was authorized to execute said instrument. IN WITNESS WHEREOF, I have hereunto set my hand and affixed my seal the day and year first above written. STATE OF WASHINGTON ) ) ss County of Spokane ) rn. 994 PA 1139 !> ( 2 .. .1/... Notary Public in and tor the State of Washington, residing at Spokane. My commission ex- pires '2- ; /Vv/ s • A 'ONS B. BENZ X 71H PR j On this day personally appeared before me ALFONS B. BENZ and 11ILDA E. BENZ, to me known to be the individuals described in and who executed the - within and foregoing instrument, and acknowledged that they signed the same as their free and voluntary act and deed, for the uses and purposes therein mentioned. GIVEN under my hand and official seal this day of 7J- Jr._ G... , 1988. Notary Public in and for the State of Washington, residing at Spokane. My commission ex- pires '7 -, /i•. Page - 8 ATTACIRIENT "A" rn. 01f 994 P•tf 1140 (1) Parcel No.) 25545 -9054, more particularly described as that portion o the North Half of Section 25, Township- 15 - Raage,444_S W lying Wly of Ln Daf - 2014.15 ft. W of NE tor th S 80 eg 08 min 14 sds E 152.25 ft th 5 50 deg 22 min 27 sds E o W In of Ptn known as Ridgemont Est 12 th Sly alg sd In to W In of Ridgemont Est Add th Sly aig sd W In -to 5 in of NW 1/4 and term of sd In exc W 1/2 of NW 1/4 and exc N 480 ft of W 726 ft of NE 1/4 of NW 1/4 and exc Rds, Spokane County. (1) Parcel No. 25542 -9058, more particularly described as the West Half of the Northwest Quarter' of Section 2A_Towasbip -25 N., Ran c E.W.M., and the N 480 ft of ft of NE 1/4 o11 1/4 exc Ptn of NW 1/4 of NW 1/4 Daf; Beg at VW cor Sec 25 th E alg the N In SD Sec 870.00 ft th 5 at R/A to SD N Ln 730.00 it to Beg of a Cur to the Lft th ale sd Cur having a i Rad of 475.00 ft through a C/A of 15 deg 21 min 06 sds 127.27 it th W at R/A to W In sd Sec 25 887.67 ft to sd W In th N alg sd W Ln 855.00 it to FOB exc Rd R /W, all in Section 25, Township 25 N., Range 44 E.N.M., Spokane County. STORM DRAINAGE EASEMENT A:ID RIGHT-OF-WAY ,GREE :t :! ::' THIS AGREEMENT made and entered into by and between Alfons B. Renz and Hilda E. Renz, husband and wife, restd :nq at South 2009 Sullivan Road, Veradale, Washington 99037. hereinafter referred to as the "Grantors," and Spokane County. a municipal corporation of the State of Washington, having offices for the transaction of business at West 1116 Broadway. Spokane, Washington 99201, hereinafter referred to as the the Grantors hereinafter "Grantee," jointly, along referred to as the 'Parties.' The par ties hereto do mutually agree as !al lows: 1. The Grantors. husband and wife, in considera tion of $1.00, receipt of which is hereby acknowledged, and other good and valuable consideration, do hereby convey and release to the Grantee, easements and rights- of -'•a5 for e .storm drainage system over and across lands owned by the Grantors and situated in the County of Spokane, State of Washington, ajascviption of which is attached hereto and designate Exhibit "A ". Said storm drainage easement is intended esclus' y benefit the property particularly described in Exhibit "B ", attached hereto, hereinafter referred to as the "Developed Property." The purpose of said drainage easement is to provide an area for flowage and storage of storm water run -off originating on or flow- ing throuch said developed property. PROVIDED, HOWEVER, it is understood by the parties that this drainage easement shall not preclude or prevent the natural flow of water onto, over or across the land described in Exhibit "A from properties other than those described in Exhibit "B ". 00.1;11. with 1(i R. E Inlet lea L• Ore ./ - 14 .0 by/ii / , : - rl / 1 Pc: •.te . .fie! nt 'g9f } `r?- Description (Eralr.e la retention ;end sD te) (7N1812 '9" DESCRIPTION: That portion of the :;E'4 r2'. and the :(n, CC', of Section 25. 4_25:1. A 4•:' .'+ M. 5aofane County. Was'ingtnn. heinq more pa rt KiiTrdij nes'�C`r'TCc3 TitoTlcw ;. Ee1irninq at a point that is 5.'1 "C., 4 distance of 626.15 fen' from the tp. corner of Section 25, said point he inl cn'ren to the north boundary of Sectinn 25 and the west boundary of leo N. Cashatt and others. as est.t_`l lined by a serve/ ptr(mned by Adams Enginecriel in 1076; thence clan; sad: (45h,tt nest toun - f ry. the folio./ inn twa (21 courses: 1) 5.37 03'I2"E.. a dtttalgc•t of 152.25 feet: 2) 5.50'22'25 "C.. a distance of 21-.CS eeet: thenct 5.5? 3O•30 a dtseencr of 135 feet. then ' 5:30'22'71'€.. a distance oo( 1 'cet; thence S.56' 26'16 "W., a distance 0f 4.06 fee;; then' ;e '11.30 22'07 "W.. a distance of 1l.11 feet; thence 5.52 :1'67 a distance o1 277.71 feet; thence Sf0 22'00 "E., a distance of 151.82 feet; thence 5.39 26'16 "W.. a distance of 49.00 feet ; thence N.S9'22 74., a distance ob 161.19 feet; the 5. 39'31 "W., a distance cf 1 :n.84 feet; thence 5.59 33'4 a distance of 199.11 feet; thence 1'33 :v.li :"a. j distance oj, 41.30 fret: thuncr 1! :56- 31'4 a distance et 233.:7 (sot; thence 1(:45'1 9 'J1"W.. a distc'.ce of °.1.90 feet; thence 5.7b 35'05%W.. a distance e1 144.09 feet'. theme 5:07 35'00:'•1., a distance of 2/5.10 feet; thence 5.59 05+19 "W., a distance of 144.00 feet; thence Nt29 33'1.4':.• a distance 01 57.50 feet: thence :1.21 52'04 "E., a distance of 2Z1.OJ feet; thence N.95 21'57 "W., a distance of 291 feet; thence :145 99'31 a distance of 022.00 feet; thence N.62 14'59 "E., a distance of 551.95 feet to the point of beginnlrg. Containing 8.86 !- acres. A port inn of the Dorthennt guar( or of Sect ion 25, Tawnah(A 25 Mor Ch. Range 44 E.O.M., being na re pnrcibular ly described on Collins. E^^in,. :nq at 1ne i.(. ...n.•r 1 h f lr.t 71. it :ur,l. 7 of Wi•1'p -iw, t 1slate: at per plat :herdef entr.r iu CmD 12 of plat-.. patty 36 in the Spntanr fatuity rmfanr's o f f i c e ; them a aleeo the Innmla, y of 4 ..111 plat 1114 loll•• ::b tl (3) , . : 1. 11.0.1 a distance u r !,99.:"1 feel; . 2. 5 pb " :9'3b "W., a d'sta of 133.07 foot: 3. 11.11 ° 11'•:: "W.. a JitI.,oce of 47^.,4'3 feet: tFC.u^ 112 ;5 •16 - 1.. a distance of , :'7.21 foci: t. 'r.e a i'2C16 "E.. dictanno of ;e!.!3 fret: tI :. 5cuil'51"C.. a dnl.m,.e e r +t' 9'. feet; thence 5. 6 "II. % C„ distarce of 195.01 feet: rncr 8.•:'5'54'55 "11., distance c.f 477114 Itet to :Ito N. :/16 cnlnr,r el Lin: (1.1. 1/4 of said Setti,in 25: th" ie :.d0 a :u'rl the not tt imr of the 11.1. 1;1 of Us: (1.1. 1/4 of sa ihl '. " rtinn Z a disranre of 505.21 (eel; thence S. Will a distance. 690.4 r :1: "hence 5.1: ° 22 . 01 a dishpan of ::6 :eel: t!r• 5.13 "W., s s,., ).4": - .. 1 ftnt. Dante 'r,4'1 :. 1 A .(.u, era 49 (net: nh th" r lie.. 1' dear n r.e 6:..'1/ find. te. ,:c r7 1: 1i 30 "I1., .1 t:1440 t:1440 . f r./t...:, r./t...:, , ! 1•1 lee :.L. fora r o1 1.h', I/, Hlnt• 3 •.I sae; , .arJ.:D) fret. of uvl':^ ^ant E1lale• thence ahnn :Le !nna i. ry of said pint tlm (oi 'calm] . ter, (21 r(he':a :'. i. :: if. :1'•J "L, a di :lama „f P:5.7n feat; 7. 1l,44 ° 57•17"1., a dir6n.DC of 71.'11 I.ni t LIP: :,.r. turner of lot 24. Clod. 7 of said plat and Point o('teginnio9 of Otis Description Situate in C'le County of Spokane, 'taCe o.`. ' ". 499 A i 5fR A71hilDED CERTIFICATE T Order Na.'33593- 1 n c flecerip ^inn a., '.l 4 ?s € 567:tugus1 23. 197: I 1 z •0 8 ^N F y 0 „o T h h 0 3 4 o0 L2 1 � ' V( 1 I I 1 1 �q I 1 __ _ 1(oT\ �[� 7 �� �C2 L7 r L8 A p U '0 J DRAINAGE EASEMENT 272,132. sq. ft. 6.24 acres \ / 'Y N . / to 0 V x 0 L6 \ TRANSAMERICA TVVLE INSURANCE COMPANY Tflis sketch Is provided, without charge, for your into \mation. It is not intondod to show all matters relnt q to the property including, but not limited to, area easeme. ts. encroachments, or Iocntion Of boundaries. It is notpart of, nor does it ntodity,,he commitment or poky to which it is attached. T14Company assumes o LIABILITY for any matter relato this sketch. P..ofere@nce should 00 mode to an acc \rate survey for fyrtiler information. i S C. \ cb c99 Lt. i Lt N16'29'55 "E / / .- LINE 1 DIRECTION 1 DISTANCE / 2810' ./ / L2 545'39'33 "W 84.90' / /�\ L3 S39'26'1fi'W 40.00' 7 // \ L4 539'26'16"W 400.00' / \ L5 556'26'16 "W 40.06' / \ L6 550'22 26.00' \ \ \ L7 589'09'28 ° E 25.38' 1 \ \ \ L8 N26'59'32 "E 29.57' 1\ \ \ 1'VjURVE 1 RADIUS 1 LENGTH I TANGENT 1 DELTA I Qa C1 50.00' 103.96' 8511' 19'08'01" 1 t i-C2 495 72' / ' 28.12' 14.07' 3'13'02" N. \ \ t \ \\ // / / / \ 1 1 __ 1 1 1 STORM DRAINAGE EASEMENT AND RIGHT -OF -WAY AGREEMENT THIS AGREEMENT made and entered into by and between Thlfons D. Renz and Hilda E. Renz, husband and wife, residing -at South 2009 Sullivan Road, Veradalo, Washington 99037, hereinafter referred to as the "Grantors," and Spokane County, .a municipal corporation of the State of Washington, having offices for the 'transaction of business at West 1116 G_aadway, Spokane, Washington 99201, hereinafter referred to as the "Grantee," jointly, along with the Grantors hereinafter .referred to as the "Parties." The parties hereto do mutually agree as follows: . 1. The Grantors, husband and wife, in considera- tion of $1.00, receipt of which is hereby acknowledged, and other good and valuable consideration, do hereby convey and release to the Grantee, easements and rights -of -way for a Storm drainage system over and across lands owned by the Grantors and situated -in the County of Spokane, State of Washington, a description of which is attached hereto and 'designated Exhibit "A "., Said storm drainage easement is intended to exclusively benefit the property particularly described in Exhibit "R ", attached hereto, hereinafter referred to as the "Developed Property." The purpose of said drainage easement is to provide an area for flowage and storage of storm water run -off originating on or flow- ing through said developed property. PROVIDED, HOWEVER, it is understood by the parties that this drainage easement • shall not preclude or prevent the natural flow of water onto, over or across the land described in Exhibit "A" from properties other than those described in Exhibit "'6 ". 756 R. E. Eaeb / 'ea teednW . • Dote V" /y —'tWo ae ` . tn�L/ of 2.• All construction, maintenance and repairs of said storm draining system shall be the sole responsibilty of the Grantors and shall be in conformance with the storm drainage pl-.n.as approved by the Grantee. The Grantee has no right to enter upon the land described in Exhibit "A" except as provided for in paragraph 4, and except with the prior consent of the Grantors. 3. The Grantee shall have the right to inspect such storm drainage system and to determine and require con- formance with the storm drainage plan as approved by the Grantee. 4. The Grantors hereby release the Grantee from any and all claims, actions, and damages of every kind and nature whatsoever including inverse condemnation accruing to the Grantor arising out of or in any way incident to or attributable to the failure of said storm drainage system. The 'parties recognize and acknowledge that the storm drainage system has been designed to accommodate • a storm of ten year frequency. To the extent that the storm drainage system fails as a result of a water flow or flood in excess of the ten year frequency, the Grantors . waive any and all claims, actions and damages which they may, have against Spokane County as a result of injury or damage to themselves or any of their real and personal property. 5. The Grantors agree to furnish the Grantee prior to the execution of this agreement their abstract of title showing marketable title on the date of this agreement. 6. The grants of the easement and the rights -of- way as well as the indemnity agreement shall run with the lands and shall be binding on and inure to the benefit of the parties hereto, their heirs, successors or assigns. IN WITNESS WHEREOF, the parties hereto have executed this agreement on. the 9th day of February 1978. Deputy Clerk STATE OF WASHINGTON ) ) ss COUNTY OF SPOKANE ) • GRANTORS GRANTEE • SPOKANE COUNTY, a municipal cor- poration of the State of Washington Board of County Commissioners On this day personally appeared before me ALFONS B. / • RENZ and HILDA E. RENZ, to me known to be the individuals des- cribed in and who executed the within and foregoing instrument, and acknowledge that they signed the same as their free and ; ;.�A,j4 u@luntary act and deed, for the uses and purposes therein • ,:'4Y; ...:'; fit-toned. W 9 •� ,1..,. (' a:� $ C'SVEN under my hand and official seal this /� iPVfVp b'5 � :, „ rnn , 1978. N •.+ /, • Ord;FG i.St_ Notary"PUblic in and .fbr the State •......:- of Washington, residing at Spokane '„'GAP A�` ;:. i;^Y>` � •. � ', i �i . , t , :' - r:"a S1� av . II II : U, `3 „. :�. Y (< y " T'r n ' � ' , n.', p. ,7•: 1 Y'" I ��\ ,'n�'. .c"'. }C�"E H BI•T' A �" . •.{^ . +" � r3.�✓��,`�4� �.t•:..,, ��= �.;�'�}.Y:.a�F,,S � rf e �.,. Descrtptton, 1" ..77•1, ,, },. ,$� '1 >. A`t��1' PA E;_ ?". Draina e� efn tton4 ::F " ,. of J 7. .r, ' .3.,'S{s' 7s:,t• ; �:fas 8x:�'h.'''Y "<"',✓'.. 'i ti H}rtl' r y e ; 4 . i •:R. • . ; ,S , -•,; WV .v,,'•.i; S�fc ,.n. tf 7'i;' 'i...r.:a,... L,,;•'j= 1. .Y: r•eti ir....,r.a '4rif^rO.Y. ': � � v .6 ji�� tii. :111 .`g:.. - .., .. ; .i. . r .; !,�(j ` -n • That,Cportion, : Ethe4NRI NW'; andlthe NlJ Sect ion:25;';T.25t1;',';Rr44E,W:M. Spokane'iCounty' Washington ; tmo'rN particularly described a's''follows: -" •i:�c" "!13`F' y. +•Ir4. ''v'.5,:!:Yr+.•�..r: yt .,.•.,t• t i r "• > .�� ,"dP! , �O l, •C'Jn^:.. ;':; .Ti ':�,.rc tt -. • Beginni_ngratj�atpoint that jsdS.39 16,42'E:� r ',}a distance o26'.85 feet'; from. y' theN4f�cornerof-Section 25; "a'sdid poinf,:being'comnon to t f. 6 he.nor t h boundary �tiy a` ndrihe boundary',o f;, Leo?N:;a k Ca • shatt an`d 'others ,'as ??Z' established;; by,, asurveyfper_ 16nred; by, ZAdams; E ' "alon � dsCashatfivestgboundary ;, ,i(thef,,fol ewing;gtao)(a);�couries; ." • :4 Ml SS30 12 ;y)a distaocekof,.X152'25ylfeet; 2•)gS;.50.22;25 'E:, a' distance ' ; ; S 30 "Ett'i 9 thenc& :'56'26''16'W t ae dtstance of44 806Vfeet ;` thence'N:901 ; 22',00 '4W:;.a'distance;.of,11 r 74;feet;'thence • .'L ;;S 52438; X 00" W: tt - a'idistance,,og1307: 717f ithenceS: "E.: a distance 1g1" 82Lfeet ;:` distance of 4g;00 fcete.; thence 50 , "W: g';,distah 161.19 5 feet; :thence . 39 : 33 "W,; a ,distance r;i;o?of?'359 84 \feet t he'nce'S ^50,33 ;;44 : ':a`: distanc'e n 99.11 feet;; thence . "W ra;d tance io�c40: 00:feetclthencev4 :50,33'44'W., a•distance . .y i of„283E47 w �feet tthence SS4509; 433' : ,a'sdistance of_S8$:90'feet; thence ,5 ^7635;00'W7`a distance;;ot 14aC00'ffeei % a distance ; r of r'2g5i00ifeet; :kthence'S 59;05.',00,Wi;i.a distance` of ,d44:00 feet; thence • ` `: N: 39 38', 1' 4" Wk;^ •a'j'distan &og- ;s7 .thence;N:21. 52'00 "E:,• a distance • by feet ;:ithence lif: 85, 21 ,;;57."WE4'aldistance'of•29d.12 feet; thence , ; N. 49„ 09;. 34,: Et" t; a. di' sf ancefo ,922;00tfeet ; 14'59 "E:, n distance . of, ; feetE;to‘ point tof :beginning:' ':. Conta i ni ng -8, 86 +' acresi: y .,,�,;_, • r4 FILED OR RECORDED! REbuEsrer County Engineer “4, : • APR 14 3 24 tan • r. •EF404•. ;4L. .SU ITOR∎ SPOKANE COUNT T,MASW 'it?;{ i :,ihr. ,:t:` •s�l�'r f ' :tit -; ... iN�C' rvi: -h't u..� � hr , dt7 +ljaq r.ry re ?tTi ra {' •.n. ,tj::.i��`_5'}•'•'ei..:); ;`. }: iei,'. ";)_t''�r�':'` +!`':.d .. .. • �%'r*S:rc''d''' ;;i,:'='• ,. F ;�), �` t4- t :�1 ::.c`t AS ''po 'a . �1`' `M1 ••'� : • ? Artion of8th 'c?';Northca t Wquar r, ,LCr '' o • f ; : Sccti o ii;25 1 ; Township' 25 North',:' Range r "4'4<;'EIIJ ?M:= 3,bci "n' Xmorc�` par tibul' arl y'cles c'ribel''as -,• Lows : • ;..: ,, . {. , . y, q ' } r ; %Vr• ; r ayt{t n. :: � ` 1 , .. ..a • , .. >. . Cc9 niiin!I,! 111 ;; : a: f :lricnrncrgof;.• Lot t l,' 4, s a . tes as per t 3j p1at her:e'd ' i,ecoi`dcdn;iii 00ii ,2`;of,,�,plitIs''', ) a'1c3G ? the SP°k :Co unty.' • Audi ;s Of ficc':''Llicti a a1onijtthc bounlai.y,;of'aid , pp.0 thr'followin9 three `( 3): courscs; 1';^ fl O3, ° ,UO '' 2 IJ:c; a ,dislancc,o c 9U''rcl; 2." S.85 ° 59'38 "W„ • �aydis t a ricc'o ?133tO7:.fcct 3 Laur.c'o ✓-.' °, thencei..11;39225'1Gi;E" i /di Tanc of4597 23 :.fcetip cncc'irI:56?6'16,C., a di'clance.:of„ feet;:; tlfencc'. tl f�G, il� .�l "Er;;a :distaii teiof' ,1..94 fret' • distance. t o' L' f . � '4,7,7�:.34!feel:3,toy`Lher(L 1 /15 1.1,e.11.1:: :- 1 /4 s aid • Section 25, ` tlir.' iicc;, t` 1199. 1G; .42;3E:'i,a1oiigiithe.'?i5;or111 Zinc o Lhcjll :f,;' „'.1 /4 "of. the :1.C: 1/4 of 's`ai'd. Section'' 7. r�'; iir taitceiitf : L4rncel,S:33 /2 "PJ.; a dis tance, ?: •:698 feet.;1 gicncew Se'1'2 "Wf,'ar:disl'iiicc . r55i;;'3Gj;fcot ; «heuee 5.13 "W.; • ;Rtl ° 5G ?30 °W. c .a f [ " 5: 47 °I1? 6 feet; f 655.97 fte distance oiA67Y00;., feel: Aio 'lhc;S.'l:.•co'ncii',of-1ni'17 Block 3 or said recorded `'•j.1 atso C: Ili dgemont3 E' 1,1 lcs. j the al o,i L li , iiiI j of •Sfeet plat the f 1 l owing,. rt it 85.39 7J <. a d stantir;;off fell toslhe 5(L'.•corner :011%ot \24,ggtlocl; ? of said plat and oint: of.' 6egiiiniiiy?fridesc lit ion y •, :r«._ Y :ivt j;..t •.x'tliis . bK`•i. 'i';>%,':i• "',,r. 1:'i t. L, ,. .I .t Sitiiat elin'•iNae:CounCy „o 'f:'Sool; 9409200210 Declaration of Covenant � , v =r . a ' In consideration of the approval by Spokane County of RIDGEMONT ESTATES NORTH 3RD ADDIT,IQ4, (,lieteinafter referred to as the "plat "), undersigned covenants and agrees that: �Cf' Z u WUN I Y AUDI The Ridgemont Estates North 3rd and 4th Home Owners Association or their successors in intercS"d'E101115110tlN19, ti r drainage facilities and pond within Utility Lot "B" as shown in the Final Plat documents. The Ridgemont Estates North 3rd and 4th Home Owners Association or their successors in interest shall be responsible for payment of all claims and other liabilities which may become due for said tracts, including electrical and water charges. Spokane County and its authorized agents are hereby granted the right to ingress and egress to, over and from all public drainage easements and Utility Lot "B" for the purposes of inspection and emergency maintenance of drainage ponds and other maintenance facilities, if not properly maintained by the property owner or the Ridgemont Estates North 3rd and 4th Home Owners Association or their successors in interest. Spokane County does not accept the responsibility to inspect or maintain the drainage facilities within Utility Lot "B ", the drainage easements or drainage facilities located on private lots, nor does the County accept any liability for any failure by the lot owner (s) or the Ridgemont Estates North 3rd and 4th Home Owners Association, or their successors in interest, to properly maintain such areas. The property owners within this plat shall be held responsible for keeping open and maintaining the surface path of natural or man- made drainage flow over and across their respective properties. If the property owner fails to maintain the surface path of natural or man -made drainage flow, or the drainage swale, a notice of such failure may be given to the property owner. If not corrected within the period indicated on said notice, Spokane County has the right to correct the maintenance failure, or have it corrected, at the expense of the property owner. The property owner or authorized representative shall inform each succeeding purchaser of all drainage easements on the property and their responsibility for maintaining surface drainage paths and swales within said easements. Spokane County does not accept the responsibility of maintaining the drainage facilities within Utility Lot "B ", drainage easements, nor the responsibility for any damage whatsoever, including, but not limited to, inverse condemnation to any properties due to deficient construction and/or maintenance of drainage courses in drainage easements on private property. Any building that is constructed on a lot in this plat shall be set at such an elevation so as to provide positive drainage away from any drainage entry point to the building (including but not limited to a window well, a window unprotected by a window well, or a doorway). Said positive drainage shall consist of a minimum slope of 3% away from the building for a distance of at least 10 feet from the building. The lots shall be graded so that either a)all runoff is routed away from building, and conveyed over the lot to a natural drainage swale or approved drainage facility, or b) drainage intercepted on the lot is disposed of on the lot in an approved drainage facility. The approved drainage facility shall be constructed in accordance with the approved plans on file at the County Engineer's Office. Any revisions to the approved drainage plans must be approved by the County Engineer's office prior to construction of said revisions. HOME OWNERS A6S Cb[bN ACKNOWLEDGMENT STATE OF WASHINGTON)SS COUNTY OF SPOKANE ) On thislistn day o & 4 l r e h g , ! 1994 b e f o r e me personally appeared 4o..,n, a - T r known to be (pro (irks n4 of Ridgemont Estates North 3rd and 4th Horne Owners Association as the individual who executed the within and foregoing instrument and acknowledged the same to be ( ■S free and voluntary act and deed for the uses and purposes herein mentioned. IN WITNESS WHEREOF, 1 have hereunto set my hand and affixed my seal the day and year first above written. My commission expirdre -n tnsr.l U • CRS- and r the State of Washington Ng t , Washington r a (9 a 1 ) 9409200212 MAINTENANCE PLAN The stormwater drainage retention pond located within Utility Lot "B" of Ridgemont Estates North - 3rd Addition (labeled "Drainage Pond 3A" on the plat's Drainage Map) shall be maintained by the Homeowners' Association in accordance with the recommended schedule below. This maintenance plan and schedule is only a rough guide; the intent is to keep the stormwater retention area fully functional and maintained as a neighborhood asset. The gross should be kept healthy and at lawn height, weed growth should be restricted, and dywell grates must be kept clear and unobstructed. MAINTENANCE TASK I. Summer (March - October) Mowing Watering UUUIVI I nuui for STORMWATER RETENTION POND "3A" SPOKANE COUNTY, WN. FREOUENCY Weeding Remove noxious weeds as they appear: "weed & feed " twice /year Fertilizing Twice per year Raking As necessary, including end of autumn Clear Drywell Grates Remove debris monthly and after rainstorms. Inspect drywells, remove Annually any silt and debris collected within II. Winter ( November - February), Clear snow and ice off drywell grates As necessary to keep grates clear ItOME OWNERS A Weekly or as necessary to keep grass depth to 4" or shorter 'Dry Periods: Every day for 1 hour min. ''Otherwise, water as necessary to keep grass green & healthy ACKNOWLEDGMENT STATE OF WASHINGTON)SS COUNTY OF SPOKANE ) On thi (5a r b o/2994 before me personally appeared e Nth ; N. ti',. known to be pci ,�, E, . of Ridgemont Estates North 3rd and 4th Home Owners Association as the individual who executed the within and foregoing instrument and acknowledged the same to ber' c. free and voluntary act and deed for the uses and purposes herein mentioned. IN WITNESS WHEREOF, I have hereunto set my hand and affixed my seal the day and year first above written. My commission expires T n,rtr� 4 k F& f"RDED SEP 2 0 '1994 tc in and for e State of Washington Washington — 940 9200310 LIMITED POWER OF ATTORNEY r� i VOL 1.6'3 O PAUF 2'70 The undersigned, Alfons B. Renz and Hilda E. Renz, ( "Principal "), husband and wife, domiciled and residing in Veradale, Washington, desiring to execute a special power of attorney, designates the following -named person as attorney -in -fact with full power and authority for the undersigned and in my place and stead to do and act for the undersigned as the Principal. 1. Designations. David W. Renz, whose address is N. 4510 Flora, Spokane, WA 99216, is designated as attorney -in -fact for the Principal. 2. Rowers. The attorney -in -fact, as fiduciary, shall have the power to negotiate and execute a storm drainage easement agreement with Spokane county across that real property located in Spokane County, Washington, legally described on Exhibit "A" attached. 3. Purposes. The attorney -in -fact shall have the above limited powers to act for and in the place of the Principal. It being distinctly understood and specified that the aforesaid attorney -in -fact should not be limited solely to the specific acts set forth in this special power of attorney, but also shall have full power and authority to do and perform all other acts and duties necessary and incident to the performance of the acts specifically provided for in this special power of attorney, with all such acts to be lawful and binding upon the undersigned the same as if personally done and performed by the undersigned. 4. Effectiveness. This power of attorney shall become effective immediately from the date of execution. 5. Duration. This limited power of attorney becomes effective as provided in Paragraph 4. and shall remain in effect until revoked or terminated under Paragraphs 6. and 7., notwithstanding any uncertainty as to whether the Principal is dead or alive. 6. Revocation. This power of attorney may be revoked, suspended, or terminated in writing by the Principal with written notice to the designated attorney -in -fact and by recording the written instrument of revocation in the office of the auditor of Spokane County, Washington. 7. Termination. The death of the Principal shall be deemed to revoke this power of attorney upon actual knowledge or actual notice being received by the attorney -in -fact. 8. Reliance. The designated and acting attorney -in -fact and all persons dealing with the attorney -in -fact shall be -1- VOI. 1 B :5 O PAGE 271 entitled to rely upon this power of attorney so long as neither the attorney -in -fact or any person with whom the attorney -in- fact was dealing at the time of any act taken pursuant to this power of attorney, had received actual knowledge or actual notice of any revocation, suspension, or termination of the power of attorney by death or otherwise. And any action so taken, unless otherwise invalid or unenforceable, shall be binding upon the heirs, assigns, or personal representatives of the Principal. 9. Indemnity. The estate of the Principal shall hold harmless and indemnify the attorney -in -fact from all liability for acts done in good faith and not in fraud of the Principal. 10. Aoolicable Law. The laws of the state of Washington shall govern this power of attorney. 11. Execution. This power of attorney is signed on this C day of September, 1994, to become effective as provided in Paragraph 4. A/14 )? r% li . _ �� Ot7S HILDA E. RENZ O ALF B. RENZ E. 15926 21st Court E. 15926 21st Court Veradale, Wa 99037 Veradale, Wa 99037 -2- STATE OF WASHINGTON ) ss. County of Spokane ) I certify that I know or have satisfactory evidence that Hilda E. Renz signed this instrument and acknowledged it to be her free and voluntary act, for the uses and purposes mentioned in the instrument. Notary Public STATE OF WASHINGTON BETTY JO A COOK My Appointment E.rpues MAY 02.1808 _ 81A`1'E! 01 1 • ) ss. County of Spokane ) I certify that I know or have satisfactory evidence that Alfons B. Renz signed this instrument and acknowledged it to be his free and voluntary act, for the uses and purposes mentioned in the instrument. Notary Public STATE OF WASHINGTON BETTY JO A COOK My Appointment Epues MAY 02.1908 _ DATED: � SRS/9409.005 , 1994. VGL. 1G5OPAGE % 72 i 7- f NOTARY U,BLIC in for the/ State_ of Washington, residing My appointment expires:/ ; , 1994. / // / NOTARY! PUBLIC in and for State of Wa hington, residing at 4 / . 4 2 M y appointment expires : / < = r -9/" -3- ZD c- ar • t -s..o■ 6 1 c&Pg f 14 - ) A sialt ( Auzi: voL.1650pAGE 273 FILED 1.3:;. REQUEST': 1 S1 SEP ZO 4 56 .:• / .21"1..■ 94 1346 9410050526 MODIFIED EASEMENT AGREEMENT 401.1656P :GE1117 VERA CREST DRIVE NO. 2507 PARCEL NO. 45255.9065 P -1684 B and P -1684C This Agreement is made and entered into by and between R & T, INC., 'a Washington Corporation, Alfons B. Renz and Hilda E. Renz, husband and wife (hereinafter collectively referred to as "Renz ") and Spokane County, a political subdivision of the State of Washington (hereinafter referred to as "County "). • RECITALS 1. Renz and the County entered into a Storm Drainage Easement and Right -of -Way Agreement dated February 9. 1 ^70 and recorded under Spokane County Auditor's No. PeC. 401;5. 2. A previous draft of an Easement Agreement ..a. recorded under Spokane County Auditor No. 9409200309. 3. Renz and the County desire to terminate the Easements referred to in paragraphs 1 and 2 above' and concurrently substitute and replace them with this Agreement. NOW, THEREFORE, in consideration of mutual covenants and conditions contained wherein, Benz and the Ccunty agree as follows: 1. The Storm Drainage Easement and Right -of -Way Agreement and the Easement Agreement referred to in Recital Paragraph 1 and 2 above is hereby terminated and replaced in iti entirety with this Modified Easement Agreement. 2. Concurrently with said termination, Benz does hereby convey to Spokane County and to the Ridgemont Estates North 3rd and 4th Additions Homeowners Association (hereinafter "Homeowners Association ") an Easement over, under, upon and across the property described in Exhibit - A - attached hereto and R. L Exam Tax Ez P :7(/ ' S 19 ' SRS /9409 -011 -1 ' ma`' v incorporated herein by this reference for the purpose of conveying and disposing of storm water and drainage run off originating on or flowing through property described in Exhibit "B" attached hereto and incorporated herein by this reference (hereinafter referred to as "Developed Property "), and the property located within Ridgemont Estates North 3rd and 4th Additions. 3. Notwithstanding the provisions SRSi9409 -011 -2- cf paragraph 2 above, it is specially understood and agreed that the drainage easement may receive the natural flow of water from undeveloped area within the drainage basin for this easement identified in that certain study performed by Simpson Engineers, Inc. in conjunction with Project Nos. _ -1684B and _ -i684C on file with the Spokane County Engineer. With the consent of Spokane County or at its request, the description of the Developed Property may be expanded to include newly platted or divided properties ( "additional properties") if (a) the developer of such additional properties has entered into a written agreement with the entity responsible for operation, maintenance and repair of the drainage facilities pursuant tc this agreement, (b) said agreement addresses payment of a pro rata share of the costs of operation, maintaining and repairing the faci lities by the owner of such properties, in accordance with paragraph 3 below (c) said agreement has been approved as to form by the County and is fully executed and recorded before final plat approval, and (d) thirty days written notice has been provided by Spokane County to the owners of the property described in Exhibit and to the entity responsible for operation and maintenance of the drainage facilities that such additional properties are being added to the Developed Property. 4. Renz agrees to install at its expense drainage facilities on the easement as described and in accordance with approved plans on file with the Spokane County Engineer's Office. Upon completion of the drainage facilities, Renz shall submit to the County Engineer "as- constructed plans" stamped by a licensed professional engineer. Renz shall reimburse Spokane County for all costs, expenses and fees incurred by the County in approving the plans for and inspecting the drainage. facilities. 5. The Homeowners Association shall be responsible for the operation, maintenance and repair of the drainage facilities located within the easement area, including but not limited to :maintaining a cover of dryland type grasses within the pond, keeping any ditches open and clean, keeping the drywells free of debris and silt, and routinely inspecting the drainage facilities. Optional shrubbery and /or trees may be planted within the drainage easement Provided there is no obstruction of flow or storm water percolation. It is specifically understood and agreed, however, that in the event additional properties are added to the description of the Developed Property, the owners of said additional properties shall be required to reimburse the Homeowners Association for the cost of operation, maintenance and repair of said fac=e =es on a pro rata basis. The pro rata annual reimbursement costs for such additional properties shay_ be determined as follows: Pro rata share = annual maintenance cost :c F. _ = number of lots added to the Developed Property divided by (number of lots added to Developed Property - number of lots in Ridgemont Estates North 3rd and 4th Addition). Spokane County may, at its option and at any time hereafter, assume responsibility for operation, maintenance and repair of the drainage facilities and may levy service charges on _lots within Ridgemont Estates North 3rd and 4th Additions, and on any additional properties added to the Developed Property, for the pro rata share costs of such oceration, determined as _follows: SRS /9409 -011 -3- SRS /9409 -011 Pro rata share for each lot = annual maintenance cost divided by (number of lots added to Developed Property _ number of lots in Ridgemont Estates North 3rd and 4th Addition). Such charges shall be collected and enforced by Spokane County in the manner provided by County resolution or ordinance for the levying and enforcement of storm - cater service charges by Spokane County. It is specifically understood and agreed that lots or owners of lots in Ridgemont Estates, Ridgemont Estates No. 2 and Ridgemont Estates No. 3, although included in the definition of "Developed Property ", are not liable for reimbursement of ccsts or for service charges levied for maintenance, operation and repair of the drainage facilities as provided for in this agreement. This limitation shall not be construed to otherwise limit the statutory authority of Spokane County to levy rates, charges or assessments on such lots or the other Developed Property if the owners of such property receive or will receive services or benefits from additional storm water control facie es installed by the County or from additional storm water services provided by the County. 8. If the Homeowners Association fails to maintain and operate the drainage facilities in good working order, Spokane County may give written notice of such failure to the Homeowners Association and if such failure is not corrected within the period indicated in said notice, Spokane County shall have the right to correct said :maintenance failure or compel such failure to be corrected at the expense of the Homeowners Association. -4- 9. If the facilities are damaged due to the negligence or intentional act of any party to this Agreement, that party shall be responsible for the cost of repairing such damage and for indemnifying the other parties of this Agreement against all damages, costs, suits, claims and expenses arising out of or caused by such negligence or intentional act. 10. Renz and the Homeowners Association hereby agree to indemnify Spokane County for all damages, including inverse condemnation, that any property, real or personal, caused by resulting from the deficient construction of the drainage facilities or the failure of Homeowners Association to properly maintain and operate said facilities. 11. The owner of the property described on Exhibit "A" shall timely pay and keep current all taxes and assessments levied against such property, and shall keep such property free of all liens and security interests. 12. The easements granted herein shall respectively run with the property described in Exhibit "A" and "8" hereto and the provisions of this Agreement shall be binding upon and inhere to the benefit of the successors and interest of the parties to this Agreement. 13. Any action that law, suit and equity or judicial proceeding for the enforcement of this Agreement or any provision hereto shall be instituted only in a court of competent jurisdiction within Spokane County, Washington. SRS /9409 -011 -5- 14. This Agreement is complete and in total agreement of the parties and may not be modified except through a written Agreement executed with the same formalities as the present Agreement. 15. This Agreement - �rLnces and supersedes an earlier Easement Agreement recorded September 20, 1994, under Spokane County Auditor's File No. 9409200309. BOARD OF COUNTY COMMISSIONERS OF SPOKANE COUNTY, WASHINGTON ALFONS 3. RENZ, by David W. Rent Steve iasson, °hai=nan his Attorney-in-fact E %Ch _berg 9 / /) _?atrcia A. idummev Li HILDA E. RENZ, by David. W. Rent her Attorney -in -fact R s T. INC. SRS /9409 -011 ATTEST: WIZ IAM E. DONAHUE Clerk af 'tee Hoard Rosanne Montague .eputy Clerk STATE OF WASHINGTON ) ) ss. County of Spokane I certify that I know or have satisfactory evidence that DAVID W. RENZ signed this instrument as attornev -in -fact of ALFONS B. RENZ, and acknowledged it to be the free and voluntary act of said ALFONS 3. RENZ, for the uses and purposes mentioned in the instrument, and on oath stated that the power of attorney authorizing the execution of this instrument has nog been revoked, and that -said ALFONS 3. RENZ is now living. DATED:. \I : /. , 199'6 - / STATE OF WASHINGTON ss. County of Spokane certify that T. know or have satisfactory evidence that DAVID W. RENZ signed this instrument as attorney -in -fact of HILDA E. RENZ, and acknowledged it to be the free and voluntary act of said HILDA E. RENZ, for the uses and purposes mentioned in the instrument, and on oath stated that the power of attorney authorizing the execution of this instrument has not been revoked, and that said HILDA E. RENZ is now living. c t' DATED: - -\ , • 0 4 SRS/9409-01i - NCTART PUBLIC rs, and for the State Washington, residing at Spokane My appointment expires: i' NOTAR' ?UBLIC in (and the State of Washington, residing at Spokane appointment expires: / -7- STATE OF WASHINGTON ) } ss County of Spokane ) _ I certify that I know or have satisfactory evidence that / 1s the person who appeared before me, and said person acknowledged that he signed this 'instrument, on oath stated that he was authorized to execute the instrument and acknowledged it, as thee/ YIei of SPOKANE COUNTY, to be the free and voluntary act cf sucn party for the uses and purposes mentioned in the instrument. DATED: (ile4ne✓ L , 1 NOT:ARTT/ PUBLIC in and for the State of WaSh ngton, residing' at Spokane 7 My appointment expires: 4 STATE OF WASHINGTON ) ss. County of Spokane ) 1 ? :.ec v that 1 know or have satisfactory evidence that /( %/ ;7/7 !(( \/ / :„..l,r 15 the Person who appeared before me, and (said terS ' a9'k/bw1 edged that he signed — this instrument, on oath . stated hat he was 3uthOri:]ed to eXeC^1te the instrument and acknowledged '' -t, as the � '�)' i� ,:/ .".i / of R y T, INC. , to be the free and voluntary act of such•party :or the uses and purposes mentioned tithe instrument. DATy � ,� 9 9 d . ED :� .�. . _1 /, SRS /9409 -011 NOTARY ?UBLIC ( - and - tor the State . -Sf Washington, residing at Spokane My appointment expires: - - LEGAL DESCRIPTION (Assessor's :_.,.3a to 94 13':k6 EXHIBIT "A" (Drainage Easement) Parce No. 45255.9055): A Portion of the Northeast quarter of the Northwest _darter and the Northwest quarter of the Northeast CUart°_r of Section 25, Townshic North, Rance 44 East, W . M. , being more Dar - . r "i a described as follows: 3iGIN a: a pc :nt. that I s Sou-h 69/ East. a __stance of 625.35 :Pe" ^ _ from the `forth Pa/art-E.: corner to said Section 25 said Point oeinu common omrnon to the North boundar', .._ said Section 25 and. the Fies: boundary established _ r performed .,- sec 1. Casnatt_ and others, as a survey hv ;darns Enc;.neer:n G in 1976T thence a_one, : -.a :G esha-t Wiest Scendar_1. :.'?e :cowisc two ( courses', South 20'08 ! East, _ .. szanc_ of 152.25 _.___ thence. Sout.. 550 25' Fast. a __st._nce of 2 __et, thence South 52 30 00' west a __stance ..)ff 125.07 thence. South 30 __ 00' East. a distance of 113.42 fee ::hence South 35' _5 1G' west, distance of 10.05 =e°_:; thence Norte 20°22'10" West. a distance ±i 1_0.7 fee=, ..hence South 52'38'00" West, a __stance of 307.71 feet; South 50' _ 0O" East a distance of 151.32 feet; thence_ South _= 26 west, _ o_.s :ance of :.O.DC Sect '.,erce North 50' :2'00' ;%cs't. ance of 16 feet, thence South 5 39 ` :;fuse a distance 7.: Leer: :,...,..e Secth 30 4 Ea_., a .:stance off _99.11 _hence South 3. Wes a .._stance_ of „.00 feet; _::°_nc. "_ .... ... ;0'33'44" W .. :. .... ._ 0_ _ _ ; e `t Scuts 45'39'7,7," Wes: _ es 9 _~e_ _ o... '.'lest - nr; .. ; =Shoe of ... O _�:_.,` thence South O' a __ i. 144.00 f-ec; _fence South , 1)7 West, a __.Stan._._ c: ._ feet ch.- ch.- a.S: '__ne '.he rutcre Plate cr _C'C; .. .,n% E.. :G,:es :Nor= ._ Addifflon; :hence .North 02'51 a ono said 3as; I-_._. a distance a.E 215.5c feet to a ooint on a ncn:ancenc curve concave .he "tease its a rad1 GE 53.O0 'rent snd a radia1 IUcari J 31: �: J su:n ^- .. - .a_ point Jeer on ::1C :aste. .: ne of the : J i. . .F7:_ 4'ernont Estates No: the ne Y.:: _ courses tai ' _a_:: file, :hence Northeaster Ncrt :heriv and :icrthwe5:e__v :h=oush central angle of 119 an arc _is :ance off 1 02-96 __9 :1 =nenc... North . 16'29'552 - East. rac_ai said curve, _ .. of 23. .._; ;hence North 55'_3'15" Fast, a ors Lai.. ;. of 248.4 feet; :hence Not'th 3_ °O East, a Lance of 2A4.58 feet; ;hence North 75':0'08" East. .a ._stance of 134.37 5_71.. :hence Nor_G 5.I ° OO'L= =asp a distance of _ 8 6 . 5 5 _ e t , thence North 5. East, a distance ..3 1 'e'_11; ;...nee :forth 25'59'22 = as., a d' stance of :9.57 fee: to the " ;curh r ci)c of way '-;w) of 15 :n Avenue and 3 point on curve concave to the Northwest with a .radii :Is of =95.72 feet and a rat__ Sea__nc of Sou:.. 16"02'1:8" Gas :, thence Northeasterly along said South R/1. =h=our_;; A ens :rai anc1 -. of 3'15•02", an ars distance of 28. feet; :hence Sou 39 East, 25.32 f-ec to ahe ?okn: of 5ec_nninc; n the County ... Spokane, State or °°ash_, ccton; pass 1 or 2 Exhibit "A" .2 55.x'065 , c 1 I I r I 1 2 I J � 94 1346 I • I _ ) i 1 \N \ I\. I II 1 I ------ • ' \ \ \ •\`\ • �• \'-. 1 \ ri • - ' r I • �1• �.:A.Si;:VS ( r \ \ \ r `` \ 94 1346 EXHIBIT "5" Ridgemont Estates, Ridcemont Estates No. 2 and Ridgemont Estates No. 3 STORM DRAINAGE EASEMENT AND RIGHT -or -WAY AGREEMENT THIS AGREEMENT made and entered into by and between ' Alfons B. Renz and Hilda E. Renz, husband and wife, residing at South 2009 Sullivan Road, Veradalc, Washington 99037, hereinafter referred to as the "Grantors," and Spokane County, a municipal corporation of the State of Washington, having offices for the transaction of business at West 1116 B_jadway, Spokane, Washington 99201, hereinafter referred to as the "Grantee," jointly, along with the Grantors hereinafter referred to as the "Parties." The parties hereto do mutually agree as follows: 1. The Grantors, husband and wife, in considera- tion of $1.00, receipt of which is hereby acknowledged, and other good and valuable consideration, do hereby convey and release to the Grantee, easements and rights -of -way for a storm drainage system over and across lands owned by the Grantors and situated in the County of Spokane, State of Washington, a description of which is attached hereto and designated Exhibit "A ". Said storm drainage easement is intended to exclusively benefit the property particularly described in Exhibit "B ", attached hereto, hereinafter referred to as the "Developed Property." The purpose of said drainage easement is to provide an area for flowage and storage of storm water run -off originating on or flow- ing through said developed property. PROVIDED, HOWEVER, it is understood by the parties that this drainage easement shall not preclude or prevent the natural flow of water onto, over or across the land described in Exhibit "A" from properties other than those described in Exhibit' "B ". 116 R. E Eabe 'u Exe:'W Date Li-71i— x _` o 80,9 44C45 zing f 'i • 2. All construction, maintenance and repairs of said storm draining system shall be the sole responsibilty of the Grantors and shall be in conformance with the storm drainage p1-.n as approved by the Grantee. The Grantee has no right to enter upon the land described in Exhibit "A" except as provided for in paragraph 4, and except with the prior consent of the Grantors. 3. The Grantee shall have the right to inspect such storm drainage system and to determine and require con- formance with the storm drainage plan as approved by the Grantee. 4. The Grantors hereby release the Grantee from any and all claims, actions, and damages of every kind and nature whatsoever including inverse condemnation accruing to the Grantor arising out of or. in any way incident to or attributable to the failure of said storm drainage system. The parties recognize and acknowledge that the storm drainage system has been designed to accommodate a storm of ten year frequency. To the extent that the storm drainage system fails as a result of a water flow or flood in excess of the ten year frequency, the Grantors waive any and all claims, actions and damages which they may have against Spokane County as a result of injury or damage to themselves or any of their real and personal property. 5. The Grantors agree to furnish the Grantee prior to the execution of this agreement their abstract of title showing marketable title on the date of this agreement. 6. The grants of the easement and the rights -of- way as well as the indemnity agreement shall run with the lands and shall be binding on and inure to the benefit of the parties hereto, their heirs, successors or assigns. 1.'78 W g. IN WITNESS WHEREOF, the parties hereto have executed this agreement on the 9th day of February 1976. ATTEST: Deputy Clerk GRANTORS : GRANTEE SPOKANE COUNTY, a municipal cor- poration of the State of Washington Board of County Commissioners 1'7817 ✓` / y49 rye 5 ___ STATE OF WASHINGTON ) ) ss COUNTY OF SPOKANE ) On this day personally appeared before me ALFONS U. BENZ and HILDA E. BENZ, to me known to be the individuals des- cribed in and who executed the within and foregoing instrument, and acknowledge that they signed the same as their free and , \rte ¢l Npntary act and deed, for the uses and purposes therein :44..x oned. at'a 3,TARI N , G /VEN under my hand and official seal this _s o -i „ ^ ..w. , 1976. -, ^ V; 4� Noiary'PUblic in and for the State of Washington, residing at Spokane vaiwmomossosid • EXHIBIT;'"A a:,•, Description ..(Drainage retention porld site) • ' That,portion of the NE and the NWL NE's of Section 25, T.25N., R.44E.W.M., Spokane County, Washington,'being more particularly described as follows: Beginnin5 at a point that is 5.39 ° 16'42 "E., a distance of 626.85 feet from ' .the N4 corner of Section.25, said point being common to the north boundary of Section 25 and the west boundary of Leo N. Cashatt and others. as established by a .survey.performed by Adams Engineering in 1976; thence along sad Cashatt west-boundary, the two (g) courses; 1) S.30 08'12 "E.', a distance of 152.25 feet; 2) S.50 22'25 "E., a distance ' of 28.00 feet; thence -S.52 30'00 "W., a distance of 135,07 feet; thence 5.30 22'00 "E., a. distance 6f 119.42 feet; thence 5.56 26'lG "W., a distance of 49.06 feet; thence N.30 ° 22'0 0 "W., a distance of 118.74 feet; thence S.52 38'00 "W., a distance of 307.71 feet; thence 5.50 22'00 "E., a distance of 11.82 feet; thence S.39 26'16"W.. a distance of 40.00 feet ; thence N.50 22'00 "W., a distance o 161.19 feet; thence 5.45"39 "W., a distance • ''of 389.84 feet; thence 5.50'33'44"E., a distance of 499.11 feet; thence 5.39 26'16 "W.; a distance.o8 40.00 feet; thence N.50 33'44 "W., a distance of 2 feet; thence 5.45'39'33 "W., a distance of 88.90 feet; thence 5.76'35'00"W., a distance o8 144.00 feet; thence 5.07 35'00 "W.. a distance of 2x5.00 feet; thence 5.59.05'00 "W., a distance of 444.00 feet; thence N.39 38'14 "W., a distance o 57.50 feet; thence N.21 52'00 "E., a distance of 2x0.00 feet; thence N.85 21'57 "W., a distance of 29.12 feet; thence N.49 09'34 "E., a distance of 922.00 feet; thence N.62 14'59 "E., U distance of 551.95 feet to the point of beginning. Containing 8.86 + acres. 17 99 '214E FILED DR RECDRDEDI REQUEST g7 County Engineer APR IN 3 24 PFS'8(1 'EBMUV •. :o: alt.. W )1TOe. . CO NI T. ecaSal REEILlaa . i G Reg Court House xxx 4 r MEN DED•: CERTIFICAT . :':Order No.'./3: • 7'Description. /August 23, 1 A portion of 179,. . Range 44.- E. tto rthcast . . . E. W. M. more 9 partibul ar l y Secti on 25, Township 25 North _ lcginth cr the .S.r. thereof 'chr• OF .1.01: Auditor' eenr•dod' c 12. 74, Illncl; follows: s Of f ice: Ronk 1 2. of Plats 2 of in t. ( courses; thence. a lunr page sa in irth( (dates as per a distance 1. • N•03o00'2 'IJJ the boundary distance of the Spokane thence courses; 133.07 feet; 3. ' a distanc of S aid p f � e ^ e the loll County distance 25 16 "C N.(11033'a," ' -9.J fe o 4 2. lowing three • d o 254.12 4'S•�lfeet;�i senr- t e c 11.56011'51"E. , a din Li t Lance. 5026116"C. S466feet iif'lJ,r o 0 16 r an te t tan • a distance 7 1. along the 11. 7j16 corner fa:t, t.hrhr:. or 99.94 feet ;2"--- 04 � of - 50 id corner , 1/..15°531.15"C., 60 i feet; n , , -)'encr is Lance or 585.25 t he N /4 IM of raid Section 25; 2.1 011.1. t ienu, S„3,3001 he tl. C. l thence S.e7ur ° .94. f eef:lthenc . - 1isL�hr, ',�,•,I. /4 of distance of '6 .70 °Id• • a -distance e S. Gq OS • .t. of 59;.86 ` • a di i'c plat 0 feet to the Ce of 6 ''6,. 9 7 f ee t ; t o glanc e 5 G • 2 Gen ( C � ov r, 675. E fee s • Cheer co cr of 1 . 0 1. 17 1 c h o 269.49 j o : o 1 Jul "IJ•, corn U nav : c S o feet; Polo: t r. nf eS. 1. feet 6u3J'42 "[" a tail L boundary al said t 7 L 0 J n;' be in to Lh L ance of 785.70 said plat o rw.d Situate 9 ni descr•iPtio other of lu[ L 4, t;lvct` ` ; Z Ii ° s' o 1 , Lt7 or in the Count sa plat and Y of Spokane tare of: !',.. ( / \ \ / C1 •\ rt L2 r ✓ 1 1 �• I I � I I -r- A4- .L .1 � 'VA _�ovC 9 5 DRAINAGE EASEMENT 272,132. sq. It. 6.24 acres 0 \ FC>, • \ N N C URVE 1 A C1 C2 tO / t. / tA LIIIE t DIRECTION 1 DISIANCE L I 1416'29'55" C 28.10' L2 S45'39'33'W 84.90' L3 S39'26 "W 4000' L4 S39'26'16 ° W 40 00' L5 556 40.06' L6 550'22 "E 26.00` L7 S89'09'28 "E 25.38' L8 1426'59'32"E 29.57' / / \ \ \ r \ xy• / \ \ • t / �/ / \ TRANSAMERICA It!LE INSURANCE COMPANY This sketch Is provided, without charge. for your info \mation. h is not inIondEd to show nil manors relnt to the property inclutinp, hut not lintilod to, ern ` dimnnslons. misemeritt encroachments, or locntion er boundaries. It Is nm fart or. nor does It modity./he commitment or piny to which it Is attached. 1 Company assumes/ 40 LIABILITY for any matio, related to this sketch. Rofe)pnco should bo male to an occ,,raln survey for (yrtifor information. / / 7 \ \ 1 i \ RADIUS 1 LEN; 1N 1 IANGEN1 1 DELIA 50.00' 103.96' 85.11' 119'08'01" I" / 495.72' 2.8.12' 14.07' 315402" FROM ANGLE DIST NORTH EAST TO ORIGINAL DRAINAGE EASEMENT 8004140245 8 -17 -94 D.E. AUTO INVERSE * * * ** START 1500.00000 1500.00000 40 40 INV S 30 08 12.0 E 152.2500 1368.32959 1576.43929 41 41 INV S 50 22 25.0 E 26.0000 1351.74734 1596.46500 42 42 INV S 52 30 00.0 W 135.0700 1269.52193 1489.30676 63 63 INV S 30 22 00.0 E 119.4200 1166.48541 1549.67738 43 43 INV S 56 26 16.0 W 40.0600 1144.33855 1516.29595 44 44 INV N 30 22 00.0 W 116.7400 1245.06275 1457.28015 45 45 INV S 52 38 00.0 W 307.7100 1058.30937 1212.72214 46 46 INV S 50 22 00.0 E 151.8200 961.46762 1329.64514 47 ' 47 INV S 39 26 16.0 W 40.0000 930.57503 1304.23554 48 48 INV N 50 22 00.0 W 161.1900 1033.39364 1180.09631 49 49 INV S 45 39 33.0 W 349.8400 788.88166 929.89256 50 50 INV S 50 33 44.0 E 199.1100 662.39905 1083.66818 51 51 INV S 39 26 16.0 W 40.0000 631.50645 1058.25858 52 52 INV N 50 33 44.0 W 203.4700 760.75871 901.11567 53 53 INV S 45 39 33.0 W 84.9000 701.41996 840.39563 54 54 INV S 76 35 00.0 W 144.0000 668.00752 700.32562 55 55 INV S 7 35 00.0 W 275.0000 395.41268 664.03441 56 56 INV S 59 05 00.0 W 144.0000 321.42680 540.49458 57 57 INV N 39 38 14.0 W 57.5000 365.70749 503.81392 58 58 INV N 21 52 00.0 E 270.0000 616.28182 604.37486 59 59 INV N 85 21 57.0 W 291.1200 639.80237 314.20657 60 60 INV N 49 09 34.0 E 922.0000 1242.75005 1011.72940 61 61 INV N 62 14 59.0 E 551.9500 1499.74835 1500.19708 62 LAT & DEG 0.25165 - 0.19708 62 HCLOSE N 38 03 59.1 W 0.3196 1500.00000 1500.00000 40 PREC = 1 TO 14964 Area = 385878.58 sq ft 8.85855 ac 4,4 1J, 7 :;` . 199 .. ;? STORK DRAINAGE EA S:. :IE :IT AMU 11C!JT -OF -AY AGREE :h':T THIS AGREEMENT made and entered into by and between Alfons B. Renz and Hilda E. Renz, husband and wife. resid:nq at South 2009 Sullivan Road. Vcradale, Washington 99037, hereinafter referred to as the "Grantors." and Spokane County, a municipal corporation of the State of !lashingtor., having offices for the transaction of business at West 1116 Broad:.ay. Spokane, Washington 99201, hereinafter referred to as the "Grantee," jointly. along with the Grantors hereinafter referred to as the "Parties." The parties hereto do mutually agree an follows: 1. The Grantors, husband and wife, in considera tion of 51.00. receipt of which is hereby acknowledged, and other good and valuable consideration. do hereby convey and release to the Grantee, easements and rights -of -way for a .storm drainage system over and across lands owned by the Grantors and situated in the County of Spokane, State of Washington a description of which is attached hereto and designate4 /xhtbit "A ".Said storm drainage easement is y benefit the property particularly intended described in Exhibit "0", attached hereto, hereinafter referred to as the 'Developed Property." The purpose of said drainage easement is to provide an area for flowage and storage of storm water run - off originating on or flow ing through said developed property. PROVIDED, ROCEVC3, it is understood by the parties that this drainage easement shall not preclude or prevent the natural flow of water onto, over or across the land described in Exhibit "A' from properties other than those described in Exhibit 'II". pre S(-11/1--- IN U orrt:,1(4x.ab 4 y r.r 1inlEll ..A.. ;escrInti0n (ire ..aie rttentiOn •And site) E78181i "B" DESCRIPTION: • ; That portion of the NE': :r.'. and the I7.3, 01', of Section 25. R. Y Saa•ane County. Was ingtoe. heinq mare partitt1:f11, 0Clu T 8 ai lt :. Be)ir.nlnq at a point 11.11 IS S.': ° 1 6' "C., a distance of G 715 re I the :p, corner or Sec 1109 25. , ..11,1 1.1 point be i n•I cn -man 10 the oo of Section 25 and the west boundary of tee 11. Cachet! and others. as esta"_1 ivied by a svr JP/ perfomr.I by Adair; En'linetrl,rg in 1175; thence Alan: 'a'; ['Stott '':st ton'` y. the (0.l loving two tn courses: 1) 5.10 72'I2"E.. a di:tancs of 152. fee:: 2) S.5C 11 2 1 "1.. a distance of i; Cee 'eat: thence 4.52'30 a distance of 1.35 feet, thane:' - 5.30'22 a distance of 119.•12 '<eet'. thence 5.56 28'W14 , a distance Of 4, 35 feet; thrn•:e II.30 a distance el II�.7a feet: thence S.52 31 +. a., a ,stance o 217.71 feet: thrnce 11 a distance of 151.82 feet: then:. 5.39 71'16'W., 4 distance of 49.00 fee. ; thence 11-.5)'22 a distance o` 161.19 feet: thecae 5. 39'33 "W., a distance Cr 14 feat: thence 5.57 13 "r.. a distance of 1 feet: thence 5'?a 24.,7."0., a distance cj 41.30 fort: trelre tl 50 a distince et 2 :7 !.:■:t; tnr.ed f:45'io'3 °4., a distance. of 0.16.90 fee:; thence 5.79 n_'a 15's:., a distance of le4.0n feet: thence S :07 a distance of 215.10 `rat; thence 5.59 05'7.54.. a distance of 6 1 44.00 feet: thence 0:35 33'14 "Y.. a distance oa 57.50 feet; thence 9.21 52 a distance of 2)1.00 feet; thence 11.95 21'57 "W., a distance of 291.12 feet: thence :1447 59'3: "E., a distance of 922.00 feet: thence 0.62 14'59 "1., a distance of 551.95 feet to the point of beilnnlrg. Containing H.A6 a aces. ". 499 a i 5`F AMENDED CERTIFICATE Order Do.' 3)5 tif,', 7 De =trip• inn TA 4 2 x:.€ OW /Augus 23. 19 A por: mu of the Dnrthca' :t owlet, r of Section 25, Townshi' 25 :lorch Ranr,,e 56 E.'J.H , bcinl; more pnrribnlarly lIe •'n i..Ilows B ^ - in,. :ng a1 tar :,r. t'•r'...r • f 1'.t 7a, icn.a 7 of itid9rnan1 .slat:: pc,' 1.1 14 rr ;r.r•Ird ,n f -.k 1 17 of plats, pat' 36 in the SI'nlam• fri :ml/ / ..9 Inr's nr(it^: 11.•nr.• al I the bn.m•lary of said .her for I.,IltS,.q three : 1. 11.0.1 1 5:r.l`•:cc or '.'17.:'•1 fn:l: 2. S.i :b"'. .36^W.. A d.sla r( 1 33.0 7 h' e t : 3 . U „ dik.I..nce of 47 Ic•11 O'cnce •; : 16"i.. a d's:.n.ce of :!7.21 fee:: t ';'2t'Ve.'... 1 dittan :e of 2c! •a cue:: tbrn tc :• 1i °,1'51 - 1 . a di of ;1,7; 1..et; thr.rr 5. `6 ^ 1f. TL. _ rliniar.to ef 195.: feel: •uder il. :•i 'J' ii "r... a distance of 4:;.':A feel to thy tt. I /le rn,nor of tit.: 11.1. 1/4 of Said Section 25 tI"':r C'. °15'42 "1. a 12 1 the not to i . of illy :Lt. I ;t of the U.E. 1/4 ef ;aid 7 r'I ^n Z a dis : , /.1/.17. 0..r,; nl 1 .5.71 (rat: thence ".1 ; ^111 .'listener. 6g::, •I : f..r :t: t •e0.: 5.17 ": . a di•.1d...• n( 5 .::h Cert.: t':uce 5.13 °l3'42" !ire, ;( •q, :J fn. 11,.. ••44'I:. l.i.r•• 72. Ir,: ;: t l • " . . ' ^ •..•0 1'J.. 161 :4l. te n cr r. ; fret; tm inc •I Ii 111".f.. .1 ..r:'a,..'• f r. /:..:b frr. 1•r t ,.L. 1 rem r 01 I..' 1/, Ulcer.: 3 ..I said. Urrd :d I4:, , ' n( V "i t' -ant (•tat. . :r. alt:'. a r/ of said: It the ruilo,ring r) rr2;.rs•• ;: i. 7." .,1 .: .I Ni .� %11').7•' fr^tt 7. :1.44 ° 57'17 "E. a di•.hear of 79:51 1..1 It ill.: ',.1. rwurr of Int 24, llluet 7 of said plat and point of'Ce•linni..g ul this description Situate in t'se County of Spokane, Crate o! '09 -21 -1994 02 :40PM Windermere Real Estate Spokane East Sprague Date: To: Fax * 9 - a ^ 9� // Total # of Pages Being Transmitted ' ZL'AN SAN z ,Vcu2- tC) 3a4'- 3'V79 From: ` / 4 dE N 2 Comments or Instructions 999" -//60 The Tupper Group, Inc. E. 12929 Sprague Ave. — Spokane. WA 99216 (509) 926 -1991 — FAX (509) 928-4250 P.01 09 -21 -1994 02 :40PM C c —ci cz Fs, 9409200 SRS /9404.015 lx)Uri I -vo l vn SPOKANE COUNTY, WN. OF COVENANTS, CONDITIONS AND RESTRICTIONS DECLARATION FOR RIDGEMONT ESTATES NORTE THIRD AND FOURTH ADDITIONS WITNESSETH: WHEREAS, Declarant is the owner of certain property in Spokane County, State of Washington, which is more particularly described in Exhibit "A" attached hereto and by this reference made a part hereof as fully as though set forth herein; and WHEREAS, the Declarant desires to develop the property as a residential development. NOW, THEREFORE, Declarant hereby declares that all the properties described above shall be held, sold, and conveyed subject to the following easements, restrictions, covenants and conditions, which are for the purpose of protecting the value and desirability of, and which shall run with, the real property and be binding on all parties having any right, title or interest in the described properties or any part thereof, their heirs, successors, and assigns, and shall inure to the benefit of each owner thereof. ARTICLE I DEFINITIONS Section 1. "Owner" shall mean and refer to the record owner, whether one or more persona or entities, of a fee simple title to any lot or residential unit which is a part of the Properties, including contract sellers, but excluding those having such interest merely as security for the performance of an obligation. Section_ 2. "Properties" shall mean and refer to that certain real property hereinbefore described. Section 3. "Residential Unit" shall mean and refer to all units of residential housing situated upon the Properties. -1- COPY ofliGirEltECTOR ECORDety SEF 1:1" P.02 THIS DECLARATION, made on the date hereinafter set forth by T.D.C., INC., a Washington corporation, hereinafter referred to as "Declarant." 09 -21 -1994 02 :40PM The stormwater drainage retention pond located within Utility Lot "B" of Ridgemont Estates North - 3rd Addition (labeled "Drainage Pond 3A" on the plat's Drainage Map) shall be maintained by the Homeowners' Association in accordance with the recommended schedule below. This maintenance plan and schedule is only a rough guide; the intent is to keep the stormwater retention area billy functional and maintained as a neighborhood asset. The glass should be kept healthy and at lawn height weed growth should be restricted. and drywall grates must be kept clear and unobstructed. MS E ANCE T SK I. Summer (March - October) Mowing Watering v7vv ale ..arS— wV,v, 1 nova Wel for STORMWATER RETENTION POND "3A" SPOKANE COUNTY, WN. FREQUENCY Weeding Remove noxious weeds as they appear: "weed & feed" twice/year Fertilizing Twice per year Raking As necessary, including end of autumn Clear Drywell Grates Remove debris monthly and after rainstorms Inspect drywalls, remove Anmmliy any silt and debris collected within )� Winter (_November - Febrtsarv) Clear snow and ice off dzy ell grates nearanuee MAINTENANCE PLAN SEP 2 0 1994 HOME OWNERS A ocanpN ACKNOWLEDGMENT STATE OF WASHINGTON)SS COUNTY OF SPOKANE ) On t 19O % day o 994 before me personally appeandir wyn ((�� , known to be t of Ridgemont Estates North 3M and 4th Home Oners AQOcia Soo as the individual who exxuted the wi in and foregoing instrwnent and acknowledged the same to bets_ free and voluntary act and deed for the uses and purposes herein mentioned. IN WITNESS WHEREOF, I have hereunto set my hand and axed my seal the day and year first above written. My commission expire tech tw r i 4 , r1 Aim _ • Weekly or as necessary to keep grass depth to 4" or shorter !Dry Periods: Every day for 1 hour min. *Otherwise, water as necessary to keep grass green & healthy M nary to keep grates clear P.03 e State of Washington Washington 09 -21 -1994 02 :41PM 61S 1 W9 c1 25 7 Declaration of Covenant - "=� In consideration of the approval by Spokane Courtly of RIDGEMONT ESTATES NORTH 3RD ADDI'f.LQAL (beaeiypites referred to as the "plat "), undersigned covenants and agrees that: D�Gth'' LL UU ]],`�! 3 , 'MOLE oh 'DDED The Ridgemont Estates North 3rd and 4th Home Owners Association or their successor in intereiniffiginettn21111. AUDI facilities and pond within Utility Lot "B" as shown in the Final Plat documents. drainage cu The Ridgemont Estates North 3M and 4th Home Owners Association or their successors in interest shall be responsible for payment of all claims and other liabilities which may become due for said tracts, including electrical and water charges. Spokane County and its authorized agents are hereby granted the tight to ingress and egress to, over and front all public drainage easements and Utility lot "B" for the purposes of inspection and emergency maintenance of drainage ponds and other maintenance facilities, if not properly maintained by the property owner or the Ridgemont Estates North 3M and 4th Home Owners Association or their successors in interest. Spokane County does not accept the taponstbility to inspect or maintain the drainage facilities within Utility Lot 13", the drainage easements or drainage facilities located on private lots, nor does the County accept any liability for any failure by the lot owner (s) or the Ridgemont Estates North 3rd and 4th Home Owners Association, or their successors in interest, to properly maintain such areas. The property owners within this plat shall be held responsible for keeping open and maintaining the surface path of natural or man- made drainage flow over and across their respective properties. If the property owner fails to maintain the surface path of natural or man -made drainage flow, or the drainage swale, a notice of such failure may be given to the property owner. If not corrected within the period indicated on said notice, Spokane County has the right to correct the maintenance failure, or have it comicted, at the expense of the property owner. The property owner or authorized representative shall inform each succeeding purchaser of all drainage easements on the property and their responsibility for maintaining surface drainage paths and males within said easements. Spokane County does not accept the responsibility of maintaining the drainage facilities within Utility Lot "B ", drainage easements, nor the responsibility for any damage whatsoever, including, but not limited to, inverse condemnation to any properties due to deficient construction and/or maintenance of drainage courses in drainage easements on private property. Any building that is constructed on a lot in this plat shall be set at such an elevation so as to provide positive drainage away from any drainage entry point to the building (including but not limited to a window well, a window unprotected by a window well, or a doorway). Said positive drainage shall consist of a minimum slope of 3% away hum the building for a distance of at least 10 feet from the building. The lots shall be graded so that either a)all runoff is touted away from building and conveyed over the lot to a natural drainage Swale or approved drainage facility, or b) drainage intercepted on the lot is disposed of on the lot in an approved drainage facility. The approved drainage facility shall be constructed in accordance with the approved plans on file at the County Engineer's Office. Any revisions to the approved drainage plans must be approved by the County Engineer's office prior to construction of said revisions. STATE OF WASHINQTON)SS COUNTY OF SPOKANE ) On this day oiaias 1994 before me personally appeared tn. 0-4v-C7 , known to be {fro rick, r,4 , of Ridgemont Estates North 3M and 4th Horne Owners iatien as the individual who executed the within and foregoing instrument and acknowledged the saute to batik free and voluntary act and deed for the uses and purposes herein mentioned. IN WITNESS WHEREOF, I have hereunto set my hand and affixed nay seal the day and year first above written. My commission explicate m o n4 U , cl tr s _ ROME OWNERS ACKNOWLEDGMENT A OC bN P.04 the State of Washington a is T_Washington 3 d 4: Al go* Spat_ feli1/4 I SOW- - S 9 9 ��, 4 iF COVENANTS, CONDITIONS AND RESTRICTIONS Slot '10 Fa •- - Sa r ?1 li'. DECLARATION FOR RIDGEMONT ESTATES NORTH, THIRD AND FOURTH ADDITIONS WITNESSETH: RECEIVED AUG 1 11994 SPOKANE COUNTY ENGINEER THIS DECLARATION, made on the date hereinafter set forth by Tupper & Associates, Inc., a Washington corporation, hereinafter referred to as "Declarant." WHEREAS, Declarant is the owner of certain property in Spokane County, State of Washington, which is more particularly described in Exhibit "A" attached hereto and by this reference made a part hereof as fully as though set forth herein; and WHEREAS, the Declarant desires to develop the property as a residential development. NOW, THEREFORE, Declarant hereby declares that all the properties described above shall be held, sold, and conveyed subject to the following easements, restrictions, covenants and conditions, which are for the purpose of protecting the value and desirability of, and which shall run with, the real property and be binding on all parties having any right, title or interest in the described properties or any part thereof, their heirs, successors, and assigns, and shall insure to the benefit of each owner thereof. Section 1. "Owner" shall mean and refer to the record owner, whether one or more persons or entities, of a fee simple title to any lot or residential unit which is a part of the Properties, including contract sellers, but excluding those having such interest merely as security or the performance of an obligation. Section 2. "Properties" shall mean and refer to that certain real property hereinbefore described. SRS /9404.015 ARTICLE I . DEFINITIONS -1- Section 3. "Residential Unit" shall mean and refer to all units of residential housing situated upon the Properties. Section 4. "Lot" shall mean and refer to any plot of land shown upon any recorded subdivision map of the Properties. Section 5. "Declarant" shall mean and refer to Tupper & Associates, Inc., its successors and assigns if such successors and assigns should acquire more than one residential unit from the Declarant for the purpose of development. Section 6. "Assessment" shall mean that portion of the cost of maintaining, improving, repairing, operating, and managing the Property which is to be paid by each Lot Owner as determined by the Association under this Declaration. Section 7. "Association" shall mean and refer to the Ridgemont North 3rd and 4th Addition Homeowners Association, the members of which shall be owners of the lots in the Property. Section 8. "Board" or "Board of Directors" shall mean and refer to the governing body of the Association. Section 9. "Bylaws" shall mean and refer to the Bylaws of the Association as amended from time to time. Section 10. "Common Expenses" means and includes the actual and estimated expenses of administration of the Association, and of the maintenance, repair, or replacement of those parts of the Common Property for which the Association is responsible, and any reasonable reserve for such purposes as found and determined by the Board and all sums designated common expenses by or pursuant to these Covenants. Section 11. "Common Property" shall mean and refer to the land or easements, together with any improvements constructed or to be constructed thereon, described as such on Exhibit "B" attached hereto and incorporated herein by this reference. Section 12. "Member" shall mean and refer to a person entitled to membership in the Association as provided herein. ARTICLE II SUBJECTION OF PROPERTY TO THE PROVISIONS OF DECLARATION The Property is hereby subjected to the covenants, conditions, restrictions and other provisions of this Declaration. SRS/9404.015 -2- ARTICLE III ASSOCIATION, ADMINISTRATION, MEMBERSHIP AND VOTING RIGHTS Section 1 - Association to Manage Project. The Owners of all the Lots covenant and agree that the administration of the Project shall be in accordance with the provisions of this Declaration and the Bylaws of the Association, subject to the standards set forth in this Declaration and all applicable laws, regulations and ordinances of any governmental or quasi- governmental body or agency having jurisdiction over the Project. Notwithstanding the generality of the foregoing, the primary function of the Association shall be the enforcement of the restrictions set forth in this Declaration. Section 2 - Membership. The Owner of a Lot shall automatically, upon becoming an Owner, be a Member of the Association, and shall remain a Member thereof until such time as his ownership ceases for any reason, at which time his membership in the Association shall automatically cease. Membership shall be in accordance with the Bylaws of the Association. Section 3 - Transferred Membership. Membership in the Association shall not be transferred, pledged, or alienated in any way, except upon the transfer of ownership of the Lot to which it is appurtenant, and then only to the new Owner. Any attempt to make a prohibited transfer is void. In the event the Owner of any Lot should fail or refuse to transfer the membership registered in his name to the purchaser of his Lot, the Association shall have the right to record the transfer upon its books and thereupon the old membership outstanding in the name of the seller be null or void. Section 4 - Classes of Membership. The Association shall have two (2) classes of voting membership established according to the following provisions: a. Class A Membership. Class A Membership shall be that held by each Owner of a Lot other than Declarant, and each Class A Member shall be entitled to one (1) vote for each Lot owned. If a Lot is owned by more than one (1) person, each such person shall be a Member of the Associa- tion, but there shall be not more than one (1) vote for each Lot. b. Class B Membership. Class B Membership shall be that held by Declarant (or its successors -in- interest) who shall be entitled to three (3) votes for each Lot owned by Declarant; provided, that Class B Membership shall be converted to Class A Membership and shall forever cease to exist on the occurrence of whichever of the following is first in time: SRS/9404.015 -3- i. When the total outstanding votes held by Class A Members (all Phases) equals the total outstand- ing votes (tripled as above) held by the Class B Members (all Phases). Once Class B Membership is converted, it shall forever cease to exist regardless of the annexation of additional Phases within the Project; or ii. On the tenth (10th) anniversary of the recordation of this Declaration. Section 5 - Voting Requirements. Except where otherwise expressly provided in this Declaration or the Bylaws, any action by the Association which must have the approval of the Association membership before being undertaken shall require the vote or written assent of the prescribed percentage of the total voting power (both classes) of the Association. Section 6 - Commencement of Votina Rights. Voting rights attributable to any Lot in a Phase, other than the first Phase, shall not vest until that Lot shall also be subject to assessment obligations to the Association, pursuant to Article 4 below. Section 7 - Membershin Meetings,. Regular and special meetings of Members of the Association shall be held with the frequency, at the time and place, and in accordance with the provisions of the Bylaws of the Association. Section 8 - Board of Directors. The affairs of the Association shall be managed by a Board of Directors, which shall be established, and which shall conduct regular and special meetings according to the provisions of the Bylaws of the Association. ARTICLE IV GENERAL PROTECTIVE COVENANTS Section 1 - Residential Character of Pronertv. No structures or buildings of any kind shall be erected, altered, placed or permitted to remain on any residential lot or building site other than one attached or detached single family dwelling for single family occupancy only, not to exceed two stories in height measuring twenty -four (24) feet maximum from the natural contour at the center of the building position to the ridgeline of the structure, with a private garage. Duplexes are not permitted. Section 2 - Minimum Dwelling Size. It is the intent and purpose of these covenants to assure that all dwellings shall be of quality materials and workmanship. The ground floor of the -4- SRS/9404.015 13 main structure, exclusive of open porches and garages, shall not be less than one thousand two hundred fifty (1,250)' square feet for a one -story dwelling, nor less than one thousand (1,000) square feet for the ground floor area of a dwelling of more than one story. (For the purpose of this provision, a home with a daylight basement shall be considered a dwelling of more than one story.) Section 3 - Date for Completion of Construction. Commencement of construction of the dwelling shall be not later than eighteen (18) months from the date of the purchase of the lot. Any dwelling or structure erected or placed on any residential lot shall be completed as to external appearance, including finished painting, within nine (9) months from date of commencement of construction. The lot shall be completely landscaped within 12 months of the date of completion of construction of the dwelling. Section 4 - Lot Sizes. No residential structure shall be erected or placed on any residential lot or building site which has a (lot or building site) area of less than the minimum size lot shown on the face of the recorded plat of Ridgemont Estates Addition. Section 5 - Business and Commercial Use of Property Prohibited. No trade, craft, business, profession, commercial or manufacturing enterprise or business or commercial activity of any kind shall be conducted or carried on upon any residential lot or building site, or within any building located on a residential lot or building site, nor shall any goods, equipment, vehicles (including buses, trucks and trailers of any description) or materials or supplies used in connection with any trade, service or business, wherever the same may be conducted, or any vehicles in excess of 6,000 pounds gross weight (including buses, trucks and trailers of any description) used for private purposes, be kept, parked, stored, dismantled or repaired outside of any residential lot or on any street adjacent to the property nor shall anything be done in any residential lot which may be or may become an annoyance of nuisance to the neighborhood. Section 6 - Residential Use of Temporary Structures Prohibited. No trailer, basement, tent, shack, garage, barn or other out - buildings or any structure of a temporary character erected or placed on the property shall at any time be used as a residence temporarily or permanently. Section 7 - Sians. No sign of any kind shall be displayed to the public view on any residence or lot except one professional sign of not more than five (5) square feet advertising the residence for sale or rent, or signs used by the developer to advertise the residence location or residence during the construction and sales period. SRS/9404.015 -5- Section 8 - Animals. No animals, livestock or poultry of any kind shall be raised, bred or kept on any part of said property, except dogs, cats or other tame, domestic household pets, provided such household pets are not kept, bred or maintained for any commercial purposes. Dogs shall not be allowed to roam loose outside the limits of the residential lot on which they are kept. Animals belonging to Owners, occupants or their licensees, tenants or invitees within the Properties must be either kept within an enclosure, an enclosed yard or on a leash being held by a person capable of controlling the animal. Furthermore, any Owner shall be absolutely liable to each and all remaining Owners, their families, guests, tenants and invitees, for any unreasonable noise or damage to person or property caused by any animals brought or kept upon the Properties by an Owner or by members of his family, his tenants or his guests; and it shall be the absolute duty and responsibility of each such Owner to clean up after such animals which have used any portion of the easement areas. Section 9 - Trash and Garbage Collection. No part of said property shall be used or maintained as a dumping ground for rubbish, trash, garbage or other waste. No garbage, trash or other waste shall be kept or maintained on any part of said property except in a sanitary container. Section 10- Nuisances. No noxious or offensive condition or anything which may be or become an annoyance or nuisance to the neighborhood shall be permitted. Section 11 - Parkins and Driveways. Parking of cars, boats, trailers, motorcycles, trucks, and like equipment shall be in driveways or garages and shall not be allowed on any roadways adjacent to the property for more than three consecutive days. All driveways shall be paved. Section 12 - Landscaoina, Outside Storage and Maintenance. (a) Lots shall be landscaped consistent with the residential character of the area. Such landscaping shall include lawn area planting of trees, shrubs and other customary landscape treatment for the entire site. (b) The landscape development, having once been installed, shall be maintained in a neat and adequate manner which shall include lawns mowed, hedges trimmed, water when needed, and removal of weeds from planted areas. Section 13 - Underground Utilities and Street Lighting. Any electric service cable running from any residence on any lot SRS /9404.015 -6- to the nearest junction box or secondary pedestal shall be installed, owned, operated, and maintained in good condition by the owner of the residence. Easements for installation and maintenance of utilities and drainage facilities are reserved as shown on the recorded plat. The owner of each lot shall pay monthly, quarterly, or yearly, or as the same may otherwise be billed, his pro -rata share of the cost to maintain the street lighting system in this addition. Further, each lot owner shall be responsible for, but not limited to, their own sewer, water and electrical costs. The lot owner's assessment in this regard shall be paid promptly when the same becomes due, and in the event of the lot owner's failure to pay promptly when due, the assessment shall constitute a lien upon the said lot owner's premises and the same may be enforced in equity as in the case of any lien foreclosure. Section 14 - Utility Easements. An easement is reserved over, under, and across all of the lots in the property as may be necessary for the installation and maintenance of all utilities, including but not limited to electrical power, telephone, water, sewer, and gas and the Declarant hereby reserves the right to grant such easements to the utilities requiring the same. Each lot owner shall share equally in the cost of maintaining the private sewer line on the properties. Section 15 - Exterior Maintenance. Each individual Owner or contract purchaser shall be obligated to provide exterior maintenance on his own lot and shall maintain the lot and any improvements thereon in a neat, sanitary and attractive condition. Section 16 - Fencina. Fencing will conform to the type of fencing usually found in the area (i.e. grape state, rustic cedar, redwood, masonry). Other types of fencing especially hurricane and chain link fencing shall be permitted as long as the material is new and a quality comparable to the other materials in the subdivision. Section 17 - Radio Antennas and Satellite Dishes. Radio antennas and satellite dishes are not allowed. ARTICLE V MAINTENANCE AND ASSESSMENTS Section 1 - Creation of the Lien and Personal, Obligation of Assessments. The Declarant, for each Lot owned within the Project, hereby covenants, and each Owner of any Lot by acceptance of a deed or contract therefor, whether or not it shall be so expressed in such deed or contract, is deemed to covenant and agree to pay to the Association: (1) general annual assessments or charges, and (2) special assessments for capital SRS /9404.015 improvements and unexpected expenses, such assessments to be established and collected as provided herein and in the Bylaws of the Association. The regular and special assessments, together with interest, costs, and actual attorneys' fees, shall be a charge and a continuing lien upon the Lot against which each assessment is made, the lien to become effective upon levy of the assessment. Each such assessment, together with interest, costs, and actual attorneys' fees, shall also be the personal obligation of the person who was the Owner of such Lot at the time when the assessment fell due. No Owner of a Lot may exempt himself from liability for the contribution toward the common expenses by waiver of the use or enjoyment of any part of the project or by the abandonment of his Lot. Section 2 - Purpose of Assessments. The assessments levied by the Association shall be used exclusively to promote the health, safety and welfare of all the residents in the entire Project, and shall include (as part of the regular periodic assessments) an adequate reserve for maintenance, repairs and replacement of those areas and facilities owned and managed by the Association, and which must be replaced on a periodic basis. Specifically, and without limiting the generality of the foregoing, the assessments shall be used to cover expenses of administering the Association, of enforcing the covenants, conditions, and restrictions of Declaration, of providing for the insurance for the Association, and of providing for the maintenance of Common Property. Section 3 - General Annual Assessment. Commencing the first day of January, 1995, the regular annual assessment per Lot shall be Dollars ($ ) per year. Each Lot's share of the first Association fisc year shall be prorated based on the number of months remaining in that fiscal year. Thereafter, the Board shall determine and fix the amount of the annual assessment against each Lot at least sixty (60) days in advance of the beginning of each fiscal year. Section 4 - Special Assessments. In addition to the regular assessments authorized above, the Board may levy, in any fiscal year, a special assessment applicable to that year only for the purpose of defraying, in whole or in part, the cost of any construction, reconstruction, repair or replacement of a capital improvement within the Project, including fixtures and personal property related thereto, or to defray any unanticipated or underestimated regular assessment. Special assessments may also be levied against an individual Lot and its Owner to reimburse the Association for costs incurred in bringing that Owner and his Lot into compliance with the provisions of this Declaration and the Bylaws, including attorneys' fees and costs. Section 5 - Allocation of Assessments. Each Lot, including Lots owned by Declarant, shall bear an equal share of SRS /9404.015 -8- each regular and special assessment (except for special assessments imposed against an individual Lot and its Owner under the preceding subparagraph). Section 6 - Date of Commencement of Assessment; Due Dates. The general annual assessments provided for herein shall commence as to all Lots in the Project or any Phase thereof on the first day of the month following closing of the sale of the first Lot in the Project or Phase thereof, but no earlier than January 1, 1992. Due dates of the assessments shall be established by the Board of Directors and be set forth in an annual notice, along with the amount of the general annual assessment. Section 7 - Transfer of Lot by Sale or Foreclosure. Sale or transfer of any Lot shall not affect the assessment lien. however, the sale or transfer of any Lot pursuant to mortgage foreclosure shall extinguish the liability for and lien of such assessments as to payments which become due prior to such sale or transfer (except for assessment liens recorded prior to the mortgage). Such unpaid dues or charges shall be deemed to be common expenses collectible from all of the Lots including such mortgagee. In a voluntary conveyance of a Lot, the grantee of the same shall be jointly and severally liable with the grantor for all unpaid assessments by the Association against the latter for his share of the common expenses up to the time of the grant or conveyance, without prejudice to the grantee's right to recover from the grantor the amounts paid by the grantee therefor. However, any such grantee shall be entitled to a statement from the Association setting forth the amount of the unpaid assessments due the Association, and such grantee shall not be liable for, nor shall the Lot conveyed be subject to a lien for, any excess of the amount set forth in the statement; provided, however, the grantee shall be eligible for any such assessment becoming due after the date of any such statement. Section 8 - Enforcement of Assessment Oblications; Priorities. Discipline. If any part of any assessment is not paid and received by the Association or its designated agent within thirty (30) days after the due date, an automatic late charge of Ten Dollars ($10.00) shall be assessed and additional Ten Dollar ($10.00) sums shall be assessed for each month or fraction thereof from the due date until the assessment and all late charges are paid. Each assessment shall constitute a lien on each respective Lot prior and superior to all other liens except (1) all taxes, bonds, assessments and other levies which, by law, would be superior thereto, and (2) the lien or charge of any mortgage or deed of trust of record made in good faith and for value. Such lien, when delinquent, may be enforced by sale by the Association, its attorney, or other person authorized by this Declaration, or by law to make the sale, after failure of the Owner to pay such assessment, in accordance with the provisions of Washington law applicable to the exercise of SRS/9404.015 -9- as judicial foreclosure Tas a mortgage, or in any powers of sale in deeds of trut, or by A shall have the As eriation, w acting on behalf of the Lot Owners, and to acquire and convey the same. Suit to recover power to bid for the Lot at the foreclosure B rent and attorneys' lies shall be maintainabl and hold, lease, mortgage enses, the for unpaid common without Xforeclosing or waiving a money judgment ma impose reasonable ble The Board may lien recuring the same. s' fees and costs, penalties, including actual attorney rights of monetary P suspend the Association membership a ssessmeno, and may temporarily P of any a Lot Owner who is in default in payment laws. after notice and hearing according to the By ARTICLE VI DUTIES AND POWERS OF THE ASSOCIATION Section 1 - Duties and Po s or or In addition the duties and powers enumerated in the Bylaw g oraelse ere pro thereof, ded for herein, and without limiting Association shall: a. Maintain, repair, replace and manage all landscape materials, grass, automatic landscape irrigation an e ll property , rope, and fen y be acquired by the i Association. o that may b. Enforce the provisions of this Declaration by means, including without limitation, the h expenditure e °f funds of the employment l ea co andtheComme Association, ceme t of actions. leggal l counsel, c. Maintain such policy or policies of insurance as are required by this Declaration or as the Board deems necessary or desirable in furthering the purposes of and protecting the interests of the Association and its Members. d. Have the authority to employ a manager or other persons and to contract with independent contractors or managing agents to perform all or any part of the duties subject to the and responsibilities of the Association, sovernmental or Bylaws overnmental body sor1m any agency having jurisdiction over quasi -q the Project. is e. Adopt reasonable rules not inconsistent wiUSe this Declaration, or the Bylaws relating of particular areas within the Project, and the conduct the Owners and their tenants and guests with respect Property and other Owners. rnrionna 015 -10- ARTICLE VII GENERAL PROVISIONS Section 1 - Enforcement. Any Owner or the Association shall have the right to enforce, by any proceeding at law or in equity, all restrictions, conditions, covenants, reservations, liens and charges now or hereafter imposed by the provisions of this Declaration. Failure by any Owner to enforce any covenant or restriction herein contained shall in no event be deemed a waiver of the right to do so thereafter. Section 2 - Severabilitv. Invalidation of any one of these covenants or restrictions by judgment or court order shall in no way affect any other provisions which shall remain in full force and effect. Section 3 - Amendment. The covenants and restrictions of this Declaration shall run with and bind the land, for a term of fifty (50) years,from the date this Declaration is recorded, after which time they shall be automatically extended for successive periods of ten (10) years. This Declaration may be amended at any time by an instrument signed by not less than seventy percent (70 %) of the Lot Owners. Any amendment must be recorded. Section 4 - No Riaht of Reversion. Nothing in this Declaration, or in any form of deed which may be used by Declarant, or its successors and assigns, in selling said property, or any part thereof, shall be deemed to vest or reserve in Declarant any right of reversion or re -entry for breach or violation of any one or more of the provisions hereof. Section 5 - Exuenses and Attorney's Fees. In the event of any suit or action to enforce any provision contained in this Declaration or in a Supplemental Declaration, to collect any money due thereunder or to foreclose a lien, the prevailing party in such suit or action shall be entitled to recover all costs and expenses incurred in connection with such suit or action including a foreclosure title report, and such amount as the court may determine to be reasonable as attorneys' fees therein, including attorneys' fees incurred in connection with any appeal from a decision of the trial court or an intermediate appellate court. IN WITNESS WHEREOF, the undersigned being the Declarant herein, has hereunto set its hand and seal this day of , 1993. TUPPER & ASSOCIATES, INC. B y Its STATE OF WASHINGTON ) ss. County of Spokane ) I certify that I know or have satisfactory evidence that signed this instrument, on oath stated that he was authorized to execute the instrument and acknowledged it, as the of Tupper & Associates, Inc., to be the free and voluntary act of such corporation, for the uses and purposes mentioned in the instrument. DATED: , 1993. SRS/9404.015 NOTARY PUBLIC in and for the State of Washington, residing at Spokane My appointment expires: -12- EXHIBIT "B" The Common Property shall consist of: (Legal Description) Improvement on the Common Property consists of: The Declarant shall construct all improvements on the Common Property and convey to the Association of the Common Property, together with the improvements constructed thereon, upon completion of the improvements. Thereafter, the Association shall maintain, restore, and /or replace the improvements on the Common Property. SRS/9404.015 -13- PREPARED FOR: T.D.C. INC. ATTN: DAVE REUG E. 12929 SPRAGUE TRANSAMERICA TITLE INSURANCE COMPANY 720 NORTH ARGONNE SPOKANE, WASHINGTON 99212 (509) 922-2222/FAX 925 -1519 LIMITED LIABILITY CERTIFICATE page 1 of 5 Order No.: NW- 188569M Charge: Tax: Total: RECEIVED AUG i 6 1994 S POKANE CGUNN ENGINEER 8175.00 14.00 8189.00 RE: RENZ & R & T INC. This is a report as of August 9, 1994, at 8:00 A.M., covering the property hereinafter described. The information contained herein is made solely for the purpose of determining the status of the property described herein, is restricted to the use of the addressee, and is not to be used as a'basis for closing anv transaction affecting title to said property. Liability is limited to the charge made for this certificate. DESCRIPTION: Order No.: MW- 188569 A drainage pond retention site easement over that portion of the Northeast quarter of the Northwest quarter and the Northwest quarter of the Northeast quarter of Section 25, Township 25 North, Range 44 East, W.M., being more particularly described as follows: BEGIN at a point that is South 89 °16'42" East, a distance of 626.35 feet from the North quarter corner of said Section 25, said point being common to the North boundary of said Section 25 and the West boundary of Leo N. Cashatt and others, as established by a survey performed by Adams Engineering in 1976; thence along said Cashatt West boundary, the following two (2) courses, South 30'08'12" East, a distance of 152.25 feet; thence South 50 °22'25" East, a distance of 26.00 feet; thence South 52 °30'00" West a distance of 135.07 feet; thence South 30'22'00" East, a distance of 119.42 feet; thence South 56 °26'16" West, a distance of 40.06 feet; thence North 30 °22'00" West, a distance of 116.74 feet; thence South 52 °38'00" West, a distance of 307.71 feet; thence South 50 °22'00" East, a distance of 151.82 feet; thence South 39 °26'16" West, a distance of 40.00 feet; thence North 50 °22'00" West. a distance of 161.19 feet; thence South 45 °39'33" West, a distance of 349.84 feet; thence South 50 °33'44" East, a distance of 199.11 feet; thence South 39 °26'16" West, a distance of 40.00 feet; thence North 50 °33'44" West, a distance of 203.47 feet; thence South 45 °39'33" West, a distance of 84.90 feet; thence South 76 °35'00" West, a distance of 144.00 feet; thence South 07 °35'00" West, a distance of 89.92 feet to the East line of the Future Plat of Ridcemont Estates North 3rd Addition; thence North 02 °51'52' West, along said East line, a distance of 215.39 feet to a point on a nontanaent curve concave to the :Vest with a radius of 50.00 feet and a radial bearing_ of South 44 °22'04" East, said point being on the Easterly line of the Future Plat of Ridgemont Estates North 4th, the next 2 courses along said Easterly line; thence Northeasterly, Northerly and Northwesterly through . central angle of 119 °08'01 ", an arc distance of 103.96 feet; thence North 16 °29'55" East, radial to said curve, a distance of 28.10 feet; thence North 56 °18'15" East, a distance of 248.44 feet; thence North 32 °00'54" East, a distance of 244.68 feet; thence North 76 °30'08" East, a distance of 154.57 feet; thence North 54 °00'44" East, a distance of 186.55 feet; thence North 62 °14'59" East, a distance of 149.00 feet; thence North 26 °39'3 East, a distance of 29.57 feet to the South richt of way (R /W) of 1 avenue and a point on a curve concave to the Northwest with a radius of 495.72 feet and a radial bearing. of South 16 °02'48" East, thence Northeasterly along said South RiW,'throuah a central angle of 3 °15'02 ", an arc distance of 28.12 feet; thence South 89 °09'28" East, 25.38 feet to the Point of Beginning; Situate in the Count)/ of Spokane, State of Washington; page 2 of 5 VESTED IN: R & T, INC., a Washington Corporation, as to a portion; and ALFONS B. RENZ, also shown of record as A.B. RENZ and ALFONS RENZ and HILDA E. RENZ, also shown of record as HILDA RENZ and EVA RENZ, husband and wife, as to a portion. EXCEPTIONS: Order No.: MW- 188569 1. General taxes, as follows, together with interest, penalty and statutory foreclosure costs, if anv, after delinquency: (1st half delinquent on May 1; 2nd half delinquent on November 1) Tax Account No. Year Amount Billed Amount Paid Principal Balance 45255.9065 1994 $4,104.88 $4,104.88 $0.00 (Covers property herein described and other property) Assessments levied by Spokane County for Storm Water, together with interest, penalty and statutory foreclosure costs, if anv, after delinquency: (1st half delinquent on May 1; 2nd half delinquent_ on November 1) Tax account No. Year Amount Billed Amount Paid Principal Balance 45255.9065 1994 S10.00 3. Anv unpaid assessments or charges, and liability for further assessments or charges by Vera Irrigation District No. 15. 4. Liability to future charges by Spokane County for Storm Water service. 5. LETTER OF COMMITMENT AND THE TERMS AND CONDITIONS THEREOF: BETWEEN: AND: DATED: RECORDED: RECORDING NO.: REGARDING: AFFECTS: page 3 of 5 5 10.00 $0.00 Alfons B. Renz and Eva Renz Spokane County Commissioners October 18, 1974 7410180104 Not build on property South of Ratchford Acre Tracts in said Section 25 until said property is platted This and other property 6. AGREEMENT AND THE TERMS AND CONDITIONS THEREOF: BETWEEN: AND: DATED: RECORDED: RECORDING NO.: REGARDING: AREA AFFECTED: 7. AGREEMENT AND THE TERMS AND CONDITIONS THEREOF: BETWEEN: AND: DATED: RECORDED: RECORDING NO.: REGARDING: 8. STORM DRAINAGE EASEMENT AND RIGHT- OF -WAY AGREEMENT AND THE TERMS AND CONDITIONS THEREOF: BETWEEN: AND: PURPOSE: AREA AFFECTED: DATED: RECORDED: RECORDING NO.: page 4 of 5 Order No.: MW- 188569 Alphons B. Renz and Hilda E. Renz, Indemnitors Spokane County, Indemnitee December 10, 1975 December 12, 1975 7512120290 To indemnify and release the indemnitee from all actions attributable to the indemnitee locating, establishing_, constructing, operating, maintaining and all matters incidental thereto, the drainage control system in conjunction with Ridgemont Estates. NW1 /4 of Sec. 25, lying NWly of Ridgemont Estates. Spokane County, a political subdivision of the State of Washington Sullivan South Enterprises, a Washington General partnership, and Alfons B. Renz and Hilda E. Renz, husband and wife September 15, 1988 September 21, 1988 8809210088 Sewerage system Alfons B. Renz and Hilda E. Renz, husband and wife Spokane County, a municipal corporation Storm Drainage This and other property April 14, 1980 8004140245 Order No.: MW- 188569 9. Potential liability for assessments levied by Spokane County Utility Department for the Aquifer Protection Area. To verify, call 458 -2538. In order to make payment, account number is necessary. sac page 5 of 5 TRANSAMERICA TITLE INSURANCE COMPANY By ) /1-411.4 .eL /.L{C( Maureen Wild, Title Officer 5 -2S G5- '10 711018(104 LETTEP Or COMIIITREUT TO: Spokane County Commissioners Spokane County Courthouse Spokane,washington 99201 i'i. 209 ou 871 F1LEf OR REc1;ao u F E^b'C51frdennty_rrceeeuti Attorney's Office Or 18 11 zs 01 '11 c,vir Beg. Courthouse xxx GEIITLEI1Et1: We are informed that the owners of certain real property which is described In Schedule "A" attached to this letter, are submitting for approval a plat for that property in which proposed plat the said property is described as "Rotchford Acre Tracts ". A copy of the proposed plat has been examined personally by the undersigned. We are the owners of the property which is located immediately adjacent on the south to the property described In Schedule "A" (Rotchford Acre Tracts). The description of our property Is set forth in Schedule "B" attached. The undersigned, to accomodate the platting of the "Rotchford Acre Tracts" property, has heretofor delivered tO Spokane County a deed for property to be used a9 a toadway which conveyance covers property described in Schedule "C" attached. _ It is recognized that the "Ratchford Acre Tracts" plat will not be approved without the undersigned having accepted the commitment that no part of their property described in Schedule "13" which fronts on the County mad (running east and west) which is adjacent to said property on the north, Shall be used as building sites without approval of Spokane County having first been obtained in writing or until. a plat for said property (Schedule "B ") or some part thereof adjacent to said roadway shall have been approved by the County of Spokane. New therefore, the undersigned, having recognized benefits which will accrue to them and their property as a result of the platting of "noLchferd Acre Tracts" do hereby rake a commitment to the County of Spokane that, if the plat for'Rotrhford Acre Tracts" is approved, they, their hairs, or successors in ownership will not permit any part of their property described in Schedule "B" which fronts an the roadway referred to aho.ts, of which the property described in Schedule "C" is the south one half thereof, to be used as a building site unless and until a plat for said adjacent property shall have been approved or until consent for the use thereof for building sites shall have been otherwise approved in writing by the County of Spokane. It is agreed that the commitment made by the unders igsed, as is herein defined, shall run with the lard described in Schedule "D ". IC LT Eva'hmtz 5U7HSrPIBrO and SWORN to before me _ ` _�.�G}I , 1774 Accepted and approve for >YtN W lam' couury of srOKANE t 5 t se rry - Pub 11 Vic.,+ -� :' scn:e o dashirrton, renidire a_ Spokane Dy C _ LAJFJ r - ..- ...-V. � r S: W, Cif RI$T. EfSCiI /: ± .� T e 1L Nf' Reitz - r 'ED A3 Ti? U "rd - Ill. 41.19 fAct 873 Y 1 X 3J3 �. 'cb / Snr 5]: 1,; 'r t:un e: <; :t... Y it Scrticn . ^.o:: r. ]_nc c: r cnl:a :O l._ ;- ;9, - , f � -. too . <tO , the \ o_ see c.. ?_. _._ rttvcu _ . s _'� :c int - :lr� :t,: lino of ° cctlJr. Ca°] 1a D G:C nort.hwest . \ �- ocr-cr ct sn:_ _ - r"-nr::rl son :0 to __ __. - r >u:}j 151 7/10 (•. a: 4 :l:aa CE[r toot; ::.rl ::_': I: direction 477 _tot t_ 'nort -,iy of se :, 39c::::' • -!�.• norbt line cn M11 Section line __�t : :o - _ ... :lor tr. - - _ or _ ALL to To ip 25 can -e ?r ��� - - •: *cttc :Iarid ion in the 1400 1. rn.u. ' 1 �. ...,..r..-'- nuo...t.e . a.br .t .s. ti,... ,... .�1.., r...O. .. .... e..x...,. n m. ,..t,,4 ....... ± I. J 'rIN -, tt �a ~t -J .., r:. — - --- - - o 1 ItV %M. e.l.•.n. to-. rten o. -- , ., :n,a ,.. . r "1' s._ ..... . .. ...., 1 ........�......L.._ �� E.'L09 PdE 874 C _ ? ��� •�4,.,� � /sue (: 209 875 A strip of land lying in Ik. l'!W 1/4 and 11,, NE I /4•of Section 75, lo.rnship 25 110,11,, Rnnqe 44 East, W. M. Spokone County, V%osh in3tnn detcril.cd ci follow,: Regin&ng c, o point on the nor,h line of ,.id NW 1/4 o.h41' bean Sd 'E, 20.00 fee, I,o,„ 11,1 „o co,nn of sold F-IW 1:4; Ihence Sou'b, along Ibe cnsl rig of -woy line of Sulli.nn Road, 7C.G0 Ieel; , hence' S59' 17 E, cn n Ihm which n 30 Ice soulha,ly mcosutcd e1 right engles and porellel to :he north line of sold NW 1/.1, 2610.17 fee,; Ihence S09 ° 1 6'44 "E, en o line which is 30 fce touthedy measured d right or'; los and parol Id to the north line of soil NE 1/4, 471.42 fen, 1° ,be point of cure of n 495.77 !eel rodlos cure to Ilm Iel1; Ihence along the me o! said curs ,a the Iclr, 177.74 fee through o control angle o! 20 0 02'06" 1° an {nreneuion w66 he no,d, line of sold NE 1/4, :nonce along the ,c,Ih line of said Sec,ion 25, NO9 "W, 601.23 feet and N09 ° 27'1 7 W, 2610.52 leet b 11,. po L,1 of beginning. • JU n.1,1.:_r.0 i•: 9vt;,1 tr ';S1212t2 h1 Or! 92 4 1 157 ,9 1,70 d I O between Alphons D. Rens and Hilda E. Renz, husband and wife, remitting, at South 2709 Sullivan Read, •ieradale, Washington 99337, tr ;n r :• c'au ^lrra ti ; J,7 ill mi l. . INDE'4NIT? AGREEMENT ,l•,ey IRIS INCE :IUITY AGREEMENT nado and entered into by and hereinafter referred to as the a potI :lcal subdivision of the office, for the traaanction of "Indemnitors' and Spokane County, State of Washington, having business at West 1115 Droadvay, Spokane, Washington 99201, hereinafter referred to as the "Indemnitee', jointly hereinafter referred to along with the Indemnicoro as tho "Parties ". W I T N E S S E T R: WHEREAS, the Board or County Commissioners of Spokane County hes tho care of County property and the management or County :ands; and WHEREAS, the Board of County Commissioners of Spokane County pursuant to the Revised Cede of Waahln ;con, Chapter 53.17 (slats-- Stbdivisinns -- Dedications) in approving plats may require conditions therein for the health, safety, and welfare o: the pct.11c; and WHEREAS, applicable departments within Spokane County have approved a drainage control aystem in conjunction with Renz subdivision, to be recorded as RSdgenont Estates, and designated as PE 963 by appropriate County departments; and WHEREAS, for the correct operation of aaid drainage control system various easements on properties owned by the Irdemntturs herolnabove were obtained; and WHEREAS, In conjunction with oaaementa granted by the Sndemr.Ltors hereinabove, the parties hereto desire to exaeete an agreement releasing the lndennitee :roc any and all losses r, a L vu, ,, brm ty C 'q'i ``' ` anion Czu" , Tr•'., -.j L PALE 1t 1 to the property, both real and personal, owned by the Indemnttora which nay be damaged or injured in anyway as a result Of Cho Indeanitoe maintaining any drainage control systems on the Renz Subdivision, to be recorded as Rid;eaont Estates, or the Icdonnitora' property adjacent thereto; IIO'W, TREIICFORE, In consideration or 31.00 and other good and valuable consideration, receipt of which is hereby acknowledged, it is hereby agreed: SECTION 1 -- LIABILITY, LOSS OR DA;IASF• The Indennitors undertake to indemnify and release the In'1emnitee from any and all actions, dcmandn, costa, exper.son, compensation, and all claims of every kind or nature whatsoever to their person or property (real and personal) including inverse condemnation /arising out of or incident to or attributable to the Inde _nttee iodating, establishing, construct- ing, operating, maintaining, repairing, and all mattera Incidental thereto, the drainage control system in conjunction with Rent Su'tdlvtslon a /k/a Ridgemont Estates. , 3E TI01 2 -- DESCRIPTIION OF REAL PROPERTY • Ths real property, including all encumbrances attached and located thereon, which Is owned by the Indemnitors, and which is the subject of this indemnity agreement is described as follows: The NW '_/4 cf Section 25. T. 255., R.44 E.W.9. ERLEF any land lying Southeasterly of the • Northwesterly line of P.Sdgemant Estates. C — ZJ SECT:0:1 3 — RUN WITH THE LAID This indemnity agreement shall run with the land herein above described, and shall be binding on ard'ehall Inure to tho benefit of the parties hereto, their heirs, successors, or assigns. SECTION 4 -- E!IT'LR.E AGREEMENT Thia indemnity agreement contalns'tha entire agreement be l aaon um pectic:, hereto and the corms arc contractual end not merely a recital. The undersigned Indernitors state that they have care- fully read the foregoing indemnity agreement, and know the con- tents thereof, and they have signed the same as their own free acts. agreement to be executed on the ''l day of (N ei / ATTEST: IN WITNESS WHEREOF, the parties hereto have caused this VERiOH 2 OHLMIlp Cler'. P the B /a.^9 Deputy t e STATE OF WASHINGTON) ) so COUNTY OF SPOKANE) STATE OF WASIII IICTdn) ) SS. G ✓7 / °: 250 na1 2S2 I!IDFIUITORS INDEI!IIiTEE SPOKANE COUNTY, a municipal corporation BOARD OF COUNTY COItIISSIONEPS fitaiLE..2 / 2:=1/ -- 1 L k „( , 1975. On this day personally appeared before me Alfons B. Benz and Hilda E. Reno, husband and wife, to ms known to be the individuals described in and who executed the within and fore - going instrument, and acknowledged that they signed the same as their free and voluntary act and deed, for the uses and purposes therein mentioned. GIVEN under my hand and official seal this /p -:d ;'d 7).. ..C,., , 1975. I:o:fl Public inland f br the -a of/ bahingtonsiding at Spokane 1. 250 iut 1Za3 3g -o935 8809210089 994 MI 1133 dal; Ili:: EC:ahCf 5tr21 921 AN 1 00 MItIMU li1 !fC A nlII'1 t:,I SPOKANE COUNTY SEWERAGE AGREEMENT ii ( 11 M:huit i •5ry, VW h.". SAMPSON THIS AGREEMENT, made and entered Into the 7: clay of l 1988, by and between SPOKANE COMM, COM, a political su division ivision of the State of Wash ington, having offices for the transaction of business at West 1116 Broadway Avenue, Spokane, Washington, 99260, hereafter referred as the "County ", and SULLIVAN SOUTH EIITERPRISES. a Washington general partnership, having offices for the transaction of business at ( u. .2 Spokane, Washington, 997w6, and ALFOIIS B. REt1E A111) IIILDA E. RFJIZ, husband and wife, South 2205 Carnine Court, Verada le, Washington, 99037, hereinafter referred to as the "Owners ", jointly referred to, as the "Parties ". W I T II E S S E T 17: WHEREAS. pursuant to the provisions of the Revised Code of Washington, Section 36.32.120(6), the Board of County Commis- sioners of Spokane County, has the care of County property and the management of County funds and business; and WHEREAS, pursuant to the provisions of Chapter 36.94 RCW, Spokane County has the ability to construct, operate, and maintain a system of sewerage within Spokane County consistent with the adopted Comprehensive Waste Water Management Plan; and WHEREAS, Owners are the legal owners of certain real estate located at the northeast corner of Sullivan Road and 24th Avenue, Spokane County, as more particularly described in Attachment "A ", attached hereto and incorporated by reference herein, and hereinafter referred to as the "Property "; and WHEREAS, Owners have made application for a preliminary plat of the Property, to be known as Ridgemont Estates Fourth Addition, and are desirous of subdividing the Property with the availability to connect to the.County's general sewerage system; and WHEREAS. the County is desirous of extending a system of sewerage from Sullivan Road and 24th Avenue through the Property, to the Timberlane and Ridgemont Subdivisions, for the purpose of connecting said subdivisions to the County's general sewerage system; and WHEREAS, Owners are willing to provide the County with , perpetual easements through the Property, In - an alignment ( acceptable to Owners and the County Utilities Department, and with appropriate access thereto, in order to allow for installation of Page - 1 .u'. 994 DU _ 1 134 a sewerage system through the Property; and the County Is willing to make said sewerage system available for connection to future lots within the Property, in a manner consistent with Owners' subdivision plans, upon certain terms and conditions; NOW, THEREFORE, for and in consideration of the mutual promises set forth hereinafter, the Parties hereto mutually agree as follows: Section 1: PURPOSE The County is desirous of constructing a sewerage system. hereinafter referred to as the "Facilities ", through the property, which Facilities will be made available to provide sanitary sewer service to lots within the Property when it is subdivided, as well as connecting the adjacent and existing Timberlane and Ridgemont subdivisions to the County's general sewerage system. Owners are willing to grant to the County perpetual easements, free of encumbrances and with appropriate access, running through the Property in an alignment acceptable to the County, in considera- tion of the County paying all costs for the design and construc- tion of such Facilities. Owners and their successors hereby acknowledge an obligation to pay the County's General Facilities Charge ( "GFC "1, monthly service charges, and an In Lieu of Assessment charge MA), as specified herein, upon connection of the Property, or future lots therein, to the Facilities. It is the intent of this Agreement to reduce to writing the Parties' agreement with respect to the conveyance of easements to the County, the design and construction of the Facilities, and related matters. Section 2: CAPITAL CONSTRUCTIOII The County shall he responsible for the design and construc- tion of the Facilities, generally described as 8 ", 10" and 12" sanitary sewer pipe, and necessary appurtenances thereto. The Facilities are deemed to be a benefit to the public. The design and construction of the Facilities will be in accordance with all applicable Federal, State and Local laws, ordinances, and regulations. The County shall install "Ts" at appropriate locations within the Facilities designated by Owners: however, the County shall not be obligated to install side sewer connection lines from the "Ts" to individual lots, which shall be the Owners' responsibility to install. All manholes installed within the Facilities shall be designed and constructed to Include a one foot I1') concrete ring section in order to facilitate adjustment of the manholes to a proper elevation at such time as roads are constructed within the Property. Page - 2 Ilk 994 P6tf 1135 Owners agree to grant to the County perpetual easements in the property, free of any encumbrances, along with temporary access easements thereto, all as specifically indicated on Attachment "B ", attached hereto and incorporated by reference herein. Owners agree, within ten (10) days of written request by the County, to execute any and all necessary perpetual easement's), temporary construction easement permits, access easements, or any other documents required of Owners under the terms of this Agreement. Section 3: USE OF CO!ISTRUCTED SUDDIVISIO!I SEWER FACILITY Only the Owners of the Property, or subsequent owners, and their successors, assigns or heirs, shall be permitted or author- ized under this Agreement, to tap Into or use the Facilities. Owners shall be responsible for the design and construction of any ocher facilities on the Property, other than the Facilities to he constructed by the County as described heicin, that may be necessary in order to use or connect to the Facilities, In conjunction with the subdividing of the Property. As owner of the Facilities, the County may allow, at its sole discretion, other persons, firms or corporations outside the Property to tap into or use the Facilities. Additionally, as owner, the County will be responsible for maintenance and operation of the Facilities once constructed and accepted by the County. All users of the Facilities shall pay a monthly Main- tenance and Operation Fee as established by the Board of County Commissioners. Section 4: PAYMENT OF GFC AID ILA This section shall apply only to those residential lots which result from approved subdivision of the Property, and which are adjacent to the Facilities and connectable by side sewer thereto. The owner of each lot at the time of hook-up to the County's general sewerage system shall pay the County's General Facilities Charge (GFC) that is current at that time, reduced by any County participation moneys then applicable to reduce said charge (the present GFC amount equals $770.00 for residential properties, currently reduced by a forty percent (40%) County subsidy, leaving $462.00 payable by the property owner). Each lot owner at the time of hook -up shall also pay an In Llcu of Assessment charge (I[A). This charge is deemed equivalent to the special benefit that the County's sewerage system is determined to provide to parcels of land within the most recent County ULID, reduced by applicable County participation moneys. Page - I Fig: 994 P!tf 113G Under this Agreement, the ILA payable at the time of hook -up shall be permanently fixed at $1,500.00 (the special benefit for residential parcels within a ULID is currently $2,500.00, which amount is currently reduced by a forty percent 140%1 County subsidy, leaving a balance of $1,500.00 payable). Each lot within the Property connecting directly, or indirectly, to the Facilities shall receive a credit of $700.00 against the ILA amount at the time of hook -up. This credit given by the County is in consideration of owners' granting to the County perpetual easements at the east and west terminus of the East -West Sewer line easements, as indicated on Attachment "B ", the loss of crop revenues to Owners, engineering expenses previously incurred by Owners, the nuisance of the sewer line passing through the Property prior to subdivision and the reduction in value of certain private lots within the Property due to the County easements. A further credit of $500.00 shall be allowed against the ILA to each lot owner at the time of hook -up to compensate for the County's not installing side .sewer lines connecting the "Ts" to Individual lots, as would be the case if the County was installing a ULID sewerage system /the amount of this additional credit amount is based upon the average cost of installing a side sewer connection, estimated as approximately $500.00, from bids received recently). The GFC applicable under County ordinance or resolution at the time of hook -up of an individual lot shall be the amount payable, less any County participation moneys applicable to reduce said amounts at the time of hook -up. The GFC amount may increase or change from present figures due to periodic adjustments by the County, and the level of applicable participation moneys may also be reduced or change according to County policy. The combined $1200.00 credit allowed future lot owners shall remain constant, as will the ILA amount. Section 5: COMPLIANCE WITH LAWS The Parties hereto specifically agree to observe all federal, state and local laws, ordinances and regulations, including, but not necessarily limited to, chapter 49.60 RCW, to the extent that they may have any hearing an either providing any money under the terms of this Agreement or the services actually provided under the terms of this Agreement. Section 6: MODIFICATION No modification or amendment of this Agreement shall he valid until the same is reduced to writing and executed with the same formalities as this present Agreement. Page - 4 ml' 994 ?ACE 1137 Y(I. Section 7: VENUE STIPULATIOII This Agreement has and shall be construed as having been made and delivered in the State of Washington, and the laws of the State of Washington shall be applicable to its construction and enforcement. Any action at law, suit in equity or judicial proceeding for the enforcement of this Agreement or any provision hereto shall be instituted only in courts of competent jurisdic- tion within Spokane County, Washington. Section 8: WAIVER No officer, employee, agent or otherwise of the County has the power, right or authority to waive any of the conditions or provisions to this Agreement. No waiver of any breach of this Agreement shall be held to be a waiver of any other or subsequent breach. All remedies afforded in this Agreement or at law shall be taken and construed as cumulative, that is, in addition to every other remedy provided herein or by law. Failure of the County to enforce at any time any of the provisions of this Agreement or to require at any time performance by the Contractor of any provision hereof shall in no way be construed to be a waiver of such provisions, nor in any way affect the validity of this Agreement or any part hereof, or the right of the County to hereafter enforce each and every such provision. Section 9: ALL WRITINGS CONTAINED IIEREINI This Agreement contains all the terms and conditions agreed upon by the Parties. No other understandings, oral or otherwise, regarding the subject matter of this Agreement shall he deemed to exist or to bind any of the Parties hereto. Owners have read and understand all of this Agreement, and now state that no represen- tation, promise or agreement not expressed in this Agreement has been made to induce Owners to execute the sane. Section 10: TERMIIIATIOII The County shall have no obligation of any kind or nature whatsoever to either design or construct the Facilities described hereinabove until Owners have granted to the County that right -of- way and /or perpetual easements and /or construction easementls) as proved for hereinabove. Subsequent to the granting of such right -of -way, perpetual easementls), and /or construction ease - mentls), respectively, neither Party may terminate this Agreement for any reason whatsoever. Section 11: TIME IS OF 711E ESSENCE Time is of the essence of this Agreement. if either Party shall fail to perform the Agreement on his part to be performed, Page - 5 at the time fixed for performance, the other Party may exercise any right as proved for herein. Section 12: RECORDING This Agreement, upon execution by both Parties, shall be recorded in the Spokane County Auditor's Office. The provisions within this Agreement shall run with the Property, and bind the Owners and their successors, assigns and heirs. IN WITNESS WHEREOF the Parties hereto have caused this Agreement to be executed on the day and year first set forth above. ATTEST: WILLIAM E. DONAHUE, Clerk of the Eoatd B &l/ac s ACL„4 , Deputy Clerk STATE OF WASHINGTON ) ) ss County of Spokane ) Page - 6 BOARD OF COUNTY COMMISSIONERS OF SPOKANE comrrY, WASHINGTON SULLIVAN SOUTH ENTERPRISES, a Washington general partnership °(I. 994 174E1138 9 / 1 V . \ leer-. (Title) On this /•,' day of 4•,(,,,,G,. , 1998, personally appeared before me /.,I-,, �. �,,,,,.. • , to me known to be the dit n,i. E:R:7 1= rI of the ahove -named general partnership that executed the / wlthln and foregoing instrument, and ac- knowledged said instrument to be the free and voluntary act and deed of said general partnership, for the uses and purposes therein mentioned, and on oath stated that he was authorized to execute said instrument. ItT WITNESS WHEREOF, 1 have hereunto set my hand and affixed my seal the day and year first above written. STATE OE WASHINGTON ) ss County of Spokane 1 ORS B. RENS /1 t #4 E. Elf 4 1f1. 994 PltE 1139 Notary Public in and for the State of Washington, tesiding at Spokane. My commission ex- pires Ci• r /•i vi On this day personally appeared before no ALFONS B. RENE and IHILDA E. RENZ, to me known to be the individuals described in and who executed the•within and foregoing instrument, and acknowledged that they signed the same as their free and voluntary act and deed, for the uses and purposes therein mentioned. GIVEN under my hand and official seal this day of , 1988. Page - 4 /. ,J. 1i, -- Notary Public in and for the State of Washington, residing at spoken°. My commission ex- pires `/. r ivy 11) Parcel No_ 25545 -9054. more particularly described as that portion o the North Half of Section 25, Township-25-11;T. Range _4¢E 41-41., lying Wly of Ln oaf -Reg 2024.35 ft. W of NE Tr Ch 5 60 eg 08 min 14 sds E 152.25 ft th 5 50 deg 22 min 27 sds E o W in of Ptn known as Rtdgemont Est 12 th Sly ale sd In to W In of Rldgemont Est Add th 51y ale sd W ln.tc S In of NW 1/4 and term of sd in exo W 1/2 of 1n4 1/4 and exc N 460 ft of W 726 ft of MS 1/4 of MW 1/4 and exc Rds, Spokane County. (1) Parcel No. 25572 -995A, more particularly described as the West Ralf of the Northwest Quarter of Section _Tnaaship -25 V., Ran e d E.W.M., and the 11 480 ft of W 726 Et of NE 114 ofd exc Ptn of NW 1/4 of NW 1/4 Dal; Beg at IN cor Sec 25 th E alg the 11 In SD Sec 670.00 ft th S at N/A to SD tE Ln 710.00 EL to Beg of a Cur to the LEt th alq sd Cur having a c Rad of 475.00 Et through a C/A of 15 deg 21 min 06 sds 127.27 ft th w at p/A to W In sd sec 25 007. ft to sd W In th alg sd W Ln 655.00 ft to FOB exc Rd R /W, all In Section 25, Township 25 li., Range 44 E.W.M., Spokane County. Page - S ATTACIIISEIIT '•A•' E6I'. 994 P'.fE 1.140 STORM WATER DRAINAGE REPORT for Ridgemont Estates North - 3rd Addition A 23 -Lot subdivision located in the NW 1/4 of Section 25, T.25 N., R.44 E.W.M. Veralale, Washington 99037 for Tupper and Associates, Inc. December 16, 1993 Revised: April 1994 Report Prepared By: Simpson &veneers, Inc. North 909 Argonne Road Spokane, WA 99212 * ** I'KOJECr NO. 12716 TABLE OF CONTENTS * ** OFFICtaL PUBLIC DOCUMENT SPOKANE COUNTY ENGINEER'S OFFICE ORIGINA PROJECT r• 7o— /b84 Part II: Offsite Drainage Analysis SUBMITTAL = ti RETURN TO COUNTY ENGINEER Supplemaltary Maps: 1. Street Pian - Profile, Renz Drive 2. Drainage; Man, Ftidgemont Estates North - 3rd Addition 3. Offsite Drainage Map, Ridgcinont Estates North 4. Drainage Easement Topography Map Part 1: On - Site Drainage Analysis RE CENED SUN o 31994 M1 4 N11 ENGINEER EXPIRES 7/17+ 9r Part 1 ON -SITE DRAINAGE ANALYSIS An analysis of stormwater flowing to "Drainage Pond 3A" * * * * * * * * * * * * * * * * ** TABLE OF CONTENTS * * * * * *'' * * *** * * * * ** 1" = 200' Map of Basins Draining to Pond 3A I -1 Project Overview 1 -2 Summary Table 1: On -Site Drainage Basins I -3 Sununary Table 2: Off -Site Drainage Basins 1-4 On -Site Basin Data: 1 -5 1. Rational Method F'eak Discharges for Qio Off -Site Basin Data 1-11 Rational Method Peak Discharges for Q 2. S.C.S. Method Hydrographs for Qso and Quo Composite Hydrographs: Qsu and Qiuo 1 -(DO 1. On -Site: Basins 3A+3B +3C+3D +4C = RidN3 P- t 6 I 2. Off -Site: Basins Renz -1 + Renz -2 = RenzC 3. On -Site + Of -Site = Ren3A � o— Level -Pool Reservoir Routing: Pond 3A 1- 99 Drainage Pond 3A Volume Calculations 1- l IG Existing Ponds - Otf -Site 1-118 Channel Flow Analyses: 1-172D 1. Existing Ditde from South of Plat (= flow from Basin Renz -1) RECEIVED 2. Ditch Entering Plat from 5th Addition (Renz -I + Renz -2) A�C V V G 3. Ditch Exti sion to Culvert (Renz -1 + Renz -2 + Basin 3D) JUN o 3 9994 4. Culvert under Renz Drive to Pond 3A (above + 313 + 3C) S. Dian from Radco Drive (Basin 4C) E ENGINEER Capacities of Curb Opening lnhxs 1 -12_ Vertical Curve Stopping Sight Distance Data 1 -12.'7 S.C.S. Soils Map and Descriptions 1 -1 R- Vabit O-ct — 1 -133 -- - - -- • \ 4 , •e , • • t e 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 0VE AVJEW This stormwater drainage report examines runoff flowing onto, across and off from the land area in and around Ridgemont Estates North - 3rd Addition. This report is divided into two parts: Part 1 ( "On- Site ") deals with stonnwater draining to the 1/4 -acre ponding area located along the north boundary of this plat , while Part 1I ("011'sitc") considers runoff to the 6 -acre drainage easement/low area located just to the east of this plat . Both ponding areas take stormwater from both within and outside of the plat, but while most of the plat's runoff stays within the plat and flows to the smaller, on -site pond ( "Drainage Pond 3A "), the 6 -acre easemenUponding area takes mostly water from offsite. The "on -site" low arca, called "Drainage Pond 3A" on the attached maps and calculations, receives stormwater nmolffrom 7 individual drainage basins. Four of those basins are located wholly (or at least substantially) within the 3rd Addition boundaries, and are referred to as Basin 3A, Basin 3B, Basin 3C and Basin 3D. A filth on -sire basin, 313, drains to the 6-acre off -site drainage ponding arca, and is detailed in fart 11 of this report. One basin within the boundaries of proposed Kidgemont Estates North - 4th Addition, called Basin 4C, also drains to Drainage Pond 3A. The remaining two basins contributing runoff to this pond are located in the developed area to the south of 3rd Addition. Now known as "Ridgemont Estates ", this area was originally named "Itenz Subdivision ", and so, to reduce confusion from overuse of the "Kidgemont" name, the drainage basins in that area are referred to as Renz -1 and Renz-2. These otlsite basins flow onto the 3rd Addition via an existing ditch. The old catch basin and drywell in Ridgemont Estates North - 5th Addition (just southwest of 3rd Addition) will be abandoned, and the existing ditch crossing Iron 5th Addition to 3rd Addition will be extended to carry runoff from the two "Kenz -" basins to Drainage Pond 3A via a culvert under Renz Drive. The Summary Tables and Individual Basin Data for Part I of this report present information in the following order: 1. R.L. North - 3rd Addition On -Site Drainage Basins, i.c. Basins through 3D 2. 4th Addition On -Site Basin 4C, which flows to Drainage Pond 3A from the north 3. otlsite basins, Renz -1 and Renz-2, which flow into Drainage Pond 3A from the south The Renz basins are partially defined by their approach path to the existing catch basin in 5th Addition (just upstreani limn the southerly tip of 3rd Addition). flow from Basin Renz -1 approaches the existing catch basin from the south via the existing ditch through Ridgemont Estates No.4 -2nd Addition, while Basin Renz -2 approaches the catch basin from the east via an existing 15" culvert. The catch basin will be abandoned, and the flows from the two at site basins will merge and flow into 3rd Addition via the existing ditch, which will be extended to Renz Drive. A culvert under Renz Drive will carry this otlsite stormwater, along with most of the site runoff, to Drainage Pond 3A. I -2 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 SUMMARY TABLE 1: ON -SITE DRAINAGE BASINS These five basins are located mostly within the plat. Basin Name: 3A 3B 3C 31) 4C 1 ItidN3 Units Location center southeast southwest south N. 4th Add composite Total Area ✓105,600 ✓133,740 ✓121,210 7 87,580 ✓ 110,360 7 558,490 so.11. Pervious Area -69,257 t-1b2,579 V105,027 V78,580 7 77,360" 432,803 sq.0. (Lawn/Lndscp) v1.590 7 2.355 v2.411 V1.804 ✓,1.776 ✓).936 acres Gravel Area 0 0 0 0 17 8,700 8,700 sq.ft. (Lill Station) 0 0 0 0 ✓0.20 0.20 acres impervious t ' 36,343 V31,161 «16,183 v 9,000 24,300 116,987 sq.ft. Area ✓ 0.834 ✓0.715 0.372 ✓ 0.207 V0.558 6 /2.686 acres 11 D Area ✓8= 8,000 - 8= 8,000 v3= 3,000 "3= 3,000 7 6= 6,1100 28 =28.000 sn.fi. It Houses =Area I-8= 16,000 "8= 16,000 v4= 8,000 "3= 6,000 7. 6 =12000 29= 58,000 sail. e, Asphalt Streets v12,343 ✓7,161 V5,183 ' "6,300 V.10,987 su.ft. >ry "208" Volume "515 ✓299 1 ✓216 I) 7 263 4 cu.ft. Peak Qin 1 3.15 2.78 1 1.47 1.45 1.63 cfs Time to peak 1 5.0 ' 6.7 1 11.2 5.0 13.4 min. Pond Name 1 3A 3A 1 3A 3A 3A 3A NOTES: Driveways are assumed to be 1,000 sq. ft. of concrete per each lot, and houses are assumed to cover 2,000 sq. ft. per each lot. Peak Q10 values are used in determining the capacities of the ditches, inlets and culvert. The extreme west end of this plat flows westward into Ridgemont Estates North - 2nd Addition; the north half of Renz Drive drains to "existing" Pond 5, and the south half drains to "existing" Pond 6, both in the 2nd Addition. See "Existing Ponds - Offsite" in this report, and the Drainage Report, street plan- profiles, and drainage plan map for Ridgemont Estates North - 2nd Addition. Basin 3C includes three assumed future Tots between Blocks 2 and 3 of this plat. Basin 3C also includes land arca outside of this plat that drains into the basin from the southwest, including an existing house at the east end of 21st Court cul-de -sac in "Ridgemont Estates North - 5th Add. ". Basins 3B and 313 each include three of the existing developed lots in Block 1 of the original Ridgemont Estates, north of Vera Crest Drive. The basins in this table drain to Drainage Pond 3A, in Utility Lot B. For an analysis of Pond 3A, see the sections on "Reservoir Routing" and "Pond 3A Volume Calculations ". Basin 4C is a portion of Ridgemont Estates North - 4th Addition, and includes the north half of Pond 3A, the Tots immediately to the north of the pond, and the south (half of Rodeo Drive between high points 5400 and 8 +50. The street portion drains to Drainage Pond 3A via a ditch; see section 5 of the Channel Flow Analyses. Basin 4C includes three lots in Ridgemont Estates North - 3rd Addition (Lots 10-12, Block I) and about 8,700 sq. ft. of gravel at the regional lift station site (Utility Lot A). -3 SUMMARY TABLE 2: OFFSITE BASINS These two basins consist mainly of existing developed Tots on the hillside to the south of this plat. This area drains into the plat via the existing storm sewer casements between Lots 16 & 17, Block I and between Lots 11 & 12, Block I, of "Ridgemont Estates" (originally "Reitz Subdivision "). Runoff from these basins flows into Ridgemont Estates North .. 3rd Addition via the existing/proposed ditch from the energy dissipator in Lot -3 of Ridgemont Estates North - 5th Addition. NOTES: Basin Name: _ RRNI-1 RENZ-2 RENUC Units Total ✓197,2411 ✓ 851,260 1,348,500 sq.ft. Area ✓ 11.415 ✓19.542 t110.957 acres Total Pervious ✓448,500 1 663,340 1,111,840 sq.ft. Area V10.296 ✓ 15.228 25.524 acres Total Impervious ✓48,740 1187,920 236,660 sq.ft. Area ✓1.119 ✓1.314 5.433 acres Lawn/YardAral V392.500 1588.140 980,640_ sift. Undeveloped IX 56,000 V 7520 131,200 so. fl 11Ilonus =Area - 1=22.000 V,27= 54.000 76,000 srr.fl. II D'ways =Area ✓10= 10,1810 ✓ 27= 27.000 37,000 . soil. Asphalt Struts VI6,740 V106.920 123,660 soft. Composite 'CM "65 70 68 curve ti Peak Qan 6.55 15.37 21.92 cis Time to peak 14.10 14.67 14.5± min. The two basins, Renz -1 and Renz -2, Flow together at the planned "energy dissipator" located in Lot -3 of Ridgemont Estates North - 5th Addition. At that location, flow from these two basins are combined as composite Basin "Renz -C ", and this combined flow enters this plat via the existing ditch and proposed ditch extension. Peak Q , values, as calculated by rational method hydrology, are used in determining the capacities of the ditches and culvert. Peak Q for "Renz -C" assumes concurrent peak of Basins Renz- I and Renz -2. The "final destination" of stormwater from these basins is Drainage Pond 3A. For an analysis of this detention pond, see the sections on Hydrographs, Routing and Pond 3A Volume Calculations. -4 On -Site Basin Data The following pages present Rational Method Peak Discharge calculations for the 5 "on-site" basins that contribute stonnwater,runo(l to Drainage Pond 3A, as listed, in Summary Table I. The basins are presented in the following order: 1. Drainage Basins Within Ridgernont Estates North - 3rd Addition: 3A 3B 3C 31) 2. Drainage Basin flowing Into Plat from North: 4C 1 -5 1 1 1 1 PROjECT NAME = EiDGEHONT ESTAlES HORIM — ORD ADDLTION I DESCRIPTION = CH—S1TE STORFWAFEk DRAINAGE — DEVELOPEII.1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 DATE = , 17^5/9- 1 1 OVERLAND FLOW VALUES ,/ Ct = .15 L = 78 N = .l.U6 CHANNEL SLOW VALUEE/ L 191 N Z1 = 7:1.6 Z2 = .172 N = .016 D = 0 S .007 TD = .2813 COMPUTED VALUES DUE = O 0 CIA = 15 RATIONAL FURHULA HYDROLOGY I-6 SUBAREA 1 = 1.59 ACRES '- i nuNaFE COLRE1C1ENT = .15 1 ---- -/ SUBAREA 2 = a 8:1: JAMES L..-- SUOAkEA 2 RUNOFF COEPF 181 ENT TO 17:,1_ AREA = 2. ;124 ACRES / COMPOS1 TE RUNOFF GUEFF LS FENT = .4060 1'.. 17 T, DEUIONEP = D“H.O.. TA111M T.A Q=c-- 4-lo ' 4 1 1 1 R:::'IT T ON(IL FOR!TMLIE WITROUNii !FAIL r 1 1/ 2r.f./ Pll DE = h . , C. I 1 - !-■02EUT NMI!: -- k..DC,LIDNI Liwnr:s mclrffH . [....NI) - -)f_m_fl - iiciN I OrBLe _1: Dr.1 = LIN - 21T: r:. : OHNI. TER LOP. I NRRE 1 1:LMAPEi; :, . 2,121-.:L2-,: 1.-- :MN:Lie': 1 1 1:;DL ; : : CIN: 1 tir = lt 1...../":" i;U:.:;I:PEI; 2 = 715 hEPES '-'---- SI...1612.REfl :.-. NUW..11-1- (.17. I. fl i FrIT U TAL l'.11:1 --, '3. 0 , [ YL.:HELE.; L --. 120HPOS I ra RLI:., CUES- F. I CI EM r . 1 U,ERL.M41.) F LOW W - . LUI*3 1 1 1 1 1 T i T L 1-7 1 1 1 RAT1ONIAL FoRmusi HYDROLOGY Ik ril: - 4/25/71 DESIGNER = D.H.C. DA:3,1N :2.0 11 PROJECT NAME = ECLDGEMONT ESTATES NORTH -- .3R1) 2 iDD1T1UN H=RIPTION = ON-SITE STORNEJATER DRAiNASE - DEVELOFHEL SUBAREA 1 = 2.111 ACRES '- 1 RUNCFF Cr:EFFICIENT - .15 0--- 11.311CAREA " = S:.7 lArRai 1---- SUUAREA 2 RUNOFF CDEFF1CiEMI = .9 L.....--- 1 UTAL ARE A = 2.7L1::: ACRES 1...' ir COHEOSFIE RUNUEE COEFFICIENT = .2tic.1251S. OVERLAND FLOW VALUES Ct 520 N = E = CHANNEL FLOW VALUES 21 "n 2. :2 .172 1 = TO = .2i1; corvurEp VI.;LLIFS DUR = 11.1C 110 = 2.11 010 = 1_47 DA 147'D 1 1 1 1 1 1 i-8 T + (sEE T co , -kPuT)crit , ,I roK &s PMC T 3 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 = 4725/94 PROjECr NAME_ = RiDOENONT ESTATES NORTH - ;ED l.‘).0113UN DESCRIPTION = ON FE STURNWATER DRAINAGE - DEVELOI7ED SUDAREA 1 r 1.304 ACHES V SUE:ARE-1 L RUNOFF GOEFFIC1ENT = 15 SUEAREA = .207 ACRES L SUBAREA 2 RUNOFH COEFFICIENT = 0TAL AREA = '7.011 AFRES composLrE PUNG:=F CC = .0/272007.72i2L. OVERLAHD FLOW VPLUES Ct = .15 L = 250 = .4 S = .4 CHANNEL FLOW Vr4LUE5 El = Z2 = N = = .07 TD = SONPUTED VALUES DUR = 5.00 y I10 1 010 = 1.45 OA = 1.45 T Rcirlowt FORMULA HYDROLGGV DESIGNEE = n“H.c. OAW :0 v9 11 ill C'r T C = '/. 9/'i4 PROJECT NAME = RIDGEMnNT ESTATES NORTH - 4TH ADDITION DESCRIPTION - STORMNATEP DRAINAGE - DEVELOPED CONDITION SUBAREA 1 = 7.776 ACRD SUE�Ar:EA - . 1 _3 ACRES SUBAREA - - ACRES ✓ Slit3ALA 4 = .275 ACRE.. ✓ E JB'=REA : ; = . 1 45 AL"r;E:: ✓ TOTAL AREA 2.574 ACRE r':E ;LAND FLOI4 'VALUES Ct = .15 L = .u0 t/ N = .4 S = .005 r.!lh NFL !=L0!•! VALUES r.nTIUNnL FORMULA HYDROLOGY DESIGNER = D.H.C. L = 1 . 0 Z1 = 76 7.2 _ .172 N = .016 D = 0 _. .00 TD = .;.'1 COM7 J LUE OUR = 17.42 110 = 1.90 ✓ 4.10 = 1 —s vIA DI*C.N TO PDUD 3A CA - 1.62 1 .62 SUBAREA 1 RUNOFF COEFFICIENT = .15 pesvu "s SUBAREA 2 RUNOFF COEFFICIENT = SUBAREA = RUNOFF COEFFICIENT = .55 s4 _t/ LIIBARGA 4 RUNOFF COEFFICIENT = .9 ►.noFS' SUBAREA 5 RUNOFF COEFFICIENT = .9 asrw.l.T COMPOSITE RUNOFF COEFFICIENT - .7:0555617252 DI-SIN 4C ' 1 -10 BASIN "1411N7,-1" Off-Site Basin Data The following pages present calculations for the 2 "off site" basins that contribute stormwater runoff to Drainage Pond 3A, as listed in Summary Table 2. The calculations for each basin are presented in the following order: 1. Rational Method Peak Discharge for Q5o 2. RunolTCurve Number Data for actual areas 3. Runoff Curve Number Data for 10x areas, used in hydrographs for increased accuracy 4. Time of Concentration, Tc computation 5. S.C.S. TR -55 Method hydrographs: RENZI -AX, hydrograph for 50 -year storm @ 1 Ox areas RENZ I -13X, hydrograph for 100 -year storm a 10x areas RENZ 1 -50, hydrograph for 50 -year storm actual areas (RENZI -AX x 0.10) RENZ 1-100, hydrograph for 100 -year storm a actual areas (RENZI -13X x 0.10) BASIN "RENZ-2" 1. Rational Method Peak Discharge for 0 2. Runoff Curve Number Data for actual areas 3. RunoffCurve Number Data for lox areas, used in hydrographs for increased accuracy 4. Time of Concentration, Tc computation 5. S.C.S. 7R -55 Method 1-lydrographs: RENZ2 -AX, hydrograph for 50 -year storm @ 10x areas RENZ2-BX, hydrograph for 100 -year storm a 10x areas RENZ2 -50, hydrograph for 50 -year storm a actual areas (RENZ2 -AX x 0.10) RENZ2 -100, hydrograph for 100 -year storm t actual areas (RENZ2 -BX x 0.10) • L . • h FnOJECT HAME = RIOGEMONT ESTATES NORTH - 5TH ADDITION DESCRIPTION = EX]STIHG FLOW FROM OLD "RIDGEMON1 ESTATES" SUBAREA 1 = 1.12 ACRES SUGARED 1 RUNOFF COEFFICIENT = .9 SUBAREA 2 = 10^7 ACRE? SUBAREA 2 RUNOFF COEFFICIENT = .15 INI TOTAi. AREA = 11.42 ACRES COMPOSITE RUNOFF COEFFICIENT = .223555166T:5 OVERLAND FLOW VALUES Ct = .15 L = 1500 N = .4 S = .16 CHANNEL FLOW VALUES L = 700 7.1 = 7 7.2 = 7 N = ��� � ^ = v S = .07 TD = .6i5 COMPUTED VALUES DUR = 14.10 150 = 2.57 050 = 6.c OA = 6^54 RATIONAL FORMULA HYDROLOGY DESIGNER = D.H.C. BASIN RENZ-1 Renz -1 . ga.) Quick TR -55 Ver.5.45 S/N:1315460151 Executed: 09:30:55 04 -26 -1994 Composite Area: Renz -1 Ridgemont Estates North - 3rd Addition Basin: Renz -1 flow via ditch from south to energy dissipator in 5th Addition RUNOFF CURVE NUMBER DATA SURFACE DESCRIPTION Impervious (roads, houses) Pervious (lawns, landscaping) Pervious (undeveloped slopes) AREA CN (acres) 1.12 Li 98 l< 1.29 ✓ 66 17 COMPOSITE AREA - - -> 11.42 ✓ 65.2 65 ) Renzi 2Cn1 Quick TR -55 Ver.5.45 S/N:1315460151 Executed: 10:21:33 04 -26 -1994 Composite Area: Renz -1 Ridgemont Estates North - 3rd Addition Basin: Renz -1 * NOTE: areas = 10x to increase accuracy hydrographs = O.10x (back to original) RUNOFF CURVE NUMBER DATA SURFACE DESCRIPTION AREA (acres) CN Impervious (roads, houses) 11.20 98 Pervious (lawns, landscaping) 90.10 61 Pervious (undeveloped slopes) 12.90 66 COMPOSITE AREA - - -> 114.20 65.2 ( 65 ) 1 -14 Quick TR -55 Ver.5.45 S/N:1315460151 Executed: 09:48:25 04 -26 -1994 RENZ1.TCT Ridgemont Estates North - 3rd Addition Basin: Renz -1 Flow path: from hill to SE, via 23rd Ct, ditch to energy dissipator Note: flow time in pipe is negligible, thus excluded Tc COMPUTATIONS FOR: Basin Renz -1 SHEET FLOW (Applicable to Tc only) Segment ID Surface description Manning's roughness coeff., n Flow length, L (total < or = 300) Two -yr 24 -hr rainfall, P2 Land slope, s 0.8 .007 * (n *L) T = 0.5 0.4 P2 * s SHALLOW CONCENTRATED FLOW Segment ID Surface (paved or unpaved)? Flow length, L Watercourse slope, s 0.5 Avg.V = Csf * (s) where: Unpaved Csf = 16.1345 Paved Csf = 20.3282 T = L / (3600 *V) CHANNEL FLOW Segment ID Cross Sectional Flow Area, a Wetted perimeter, Pw Hydraulic radius, r = a /Pw Channel slope, s Manning's, roughness coeff., n V 2/3 1/2. 1.49 * r * s n Flow length, L T = L / (3600 *V) hilltop undeveloped 0.0500 ft 10.0 in 1.400 ft /ft 0.0630 hrs 0.01 NWslope Unpaved ft 1500.0 ft /ft 0.1600 ft /s 6.4538 hrs 0.06 ditch sq.ft 1.15 ft 3.92 ft 0.293 ft /ft 0.0700 0.0300 ft /s 5.8017 ft 500 hrs 0.02 TOTAL TIME (hrs) T3 T = 0.01 T = 0.06 = 0.02 0.10 1 -15 1 1 1 1 1 1 1 1 1 1 1 1 Quick TR -55 Version: 5.45 S /N: 1315460151 Page 1 Return Frequency: 50 years Subarea Description I Renz -1 TR -55 TABULAR }IYDROGRAPH METHOD Type II. Distribution (24 hr. Duration Storm) Executed: 04 -26 -1994 10:31:50 Watershed file: - -> RENZ1 .MOP Hydrograph file: - -> RENZ1- AX.HYD =lro rm c o x�sl Ridgemont Estates North - 3rd Addition Offsite drainage from SE of plat via existing /proposed ditches 50 -year and 100 -year storm return frequency NOTE: Peak discharge is 10x (as per 10x RCN values) »» Input Parameters Used to Compute Hydrograph «« AREA CN Tc * Tt Precip. I Runoff Ia /p (acres) (hrs) (hrs) (in) (in) input /used 114.20 `----65.0 L/ 0.10 0.00 2.40L/1 0.26 I.45 .45 * Travel time from subarea outfall to composite watershed outfall point. ' I -- Subarea where user specified interpolation between Ia /p tables. Total area = 114.20 acres or 0.1784 sq.mi - Peak discharge = 30 cfs l / J6 71 V »» Computer Modifications of Input Parameters ««< Input Values Rounded Values Ia /p I Subarea Tc * Tt Tc * Tt Interpolated Ia /p Description (hr) (hr) (hr) (hr) (Yes /No) Messages 1R enz -1 0.10 0.00 ** ** Yes * Travel time from subarea outfall to composite watershed outfall point. m ** Tc & Tt are available in the hydrograph tables. 1 1 Quick TR -55 Version: 5.45 S /N: 1315460151 Page 2 Return Frequency: 50 years TR -55 TABULAR HYDROGRAPH METHOD 'Type II. Distribution (24 hr. Duration Storm) 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Executed: 04 -26 -1994 10:31:50 Watershed file: - -> RENZ1 .MOP Hydrograph file: - -> RENZ1- AX.HYD Ridgemont Estates North - 3rd Addition Offsite drainage from SE of plat via existing /proposed ditches 50 -year and 100 -year storm return frequency NOTE: Peak discharge is 10x (as per 10x RCN values) Subarea Renz -1 »» Summary of Subarea Times to Peak «« Composite Watershed Peak Discharge at Time to Peak at Composite Outfall Composite Outfall (cfs) (hrs) 30 12.1 30 12.1 I -I'7 1 1 1 1 1 Ridgemont Estates North - 3rd Addition Offsite drainage from SE of plat via existing /proposed ditches 50 -year and 100 -year storm return frequency ' NOTE: Peak discharge is 10x (as per 10x RCN values) 1 Composite Hydrograph Summary (cfs) 1 1 1 1 Quick TR -55 Version: 5.45 S /N: 1315460151 Page 3 Return Frequency: 50 years Subarea ' Description Renz -1 !Total (cfs) Subarea 12.5 .12.6 12.7 .12.8 13.0 13.2 13.4 13.6 13.8 I Description hr ihr • hr hr ' hr hr hr hr hr Renz -1 7 6 5 5 4 4 4 3 3 'Total (cfs) 7 6 5 5 4 4 4 3 3 Subarea Description Mertz -1 'Total (cfs) Subarea 18.0 19.0 , .20.0 22.0 26.0 Description hr hr hr hr hr 'Lenz -1 'Total (cfs) TR -55 TABULAR HYDROGRAPH METHOD Type II. Distribution (24 hr. Duration Storm) Executed: 04 -26 -1994 10:31:50 Watershed file: - -> RENZ1 .MOP Hydrograph file: - -> RENZ1- AX.HYD 11.0 11.3 11.6 11.9 12.0 12.1 12.2 12.3 12.4 hr hr hr hr hr hr hr hr hr 0 0 0 2 9 30 19 9 8 0 0 0 2 9 30 19 9 8 14.0 14.3 14.6 15.0 15.5 16.0 16.5 17.0 17.5 hr hr hr hr hr hr hr hr hr 3 3 3 2 2 2 2 2 2 3 3 3 2 2 2 2 2 2 2 1 1 1 0 2 1 1 1 0 1 ' Quick TR -55 Version: 5.45 S /N: 1315460151 Page 4 Return Frequency: 50 years 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 TR -55 TABULAR HYDROGRAPH METHOD Type II. Distribution (24 hr. Duration Storm) Executed: 04 -26 -1994 10:31:50 Watershed file: - -> RENZ1 .MOP Hydrograph file: - -> RENZ1- AX.HYD Ridgemont Estates North - 3rd Addition Offsite drainage from SE of plat via existing /proposed ditches 50 -year and 100 -year. storm return frequency NOTE: Peak discharge is 10x (as per 10x RCN values) Time Flow Time Flow (hrs) (cfs) (hrs) (cfs) 11.0 0 14.8 2 11.1 0 14.9 2 11.2 0 15.0 2 11.3 0 15.1 2 11.4 0 15.2 2 11.5 0 15.3 2 11.6 0 15.4 2 11.7 1 15.5 2 11.8 1 15.6 2 11.9 2 15.7 2 12.0 9 15.8 2 12.1 30 15.9 2 12.2 19 16.0 2 12.3 9 16.1 2 12.4 8 16.2 2 12.5 7 16.3 2 12.6 6 16.4 2 12.7 5 16.5 2 12.8 5 16.6 2 12.9 4 16.7 2 13.0 4 16.8 2 13.1 4 16.9 2 13.2 4 17.0 2 13.3 4 17.1 2 13.4 4 17.2 2 13.5 4 17.3 2 13.6 3 17.4 2 13.7 3 17.5 2 13.8 3 17.6 2 13.9 3 17.7 2 14.0 3 17.8 2 14.1 3 17.9 2 14.2 3 18.0 2 14.3 3 18.1 2 14.4 3 18.2 2 14.5 3 18.3 2 14.6 3 18.4 2 14.7 3 18.5 2 Quick TR -55 Version: 5.45 S /N: 1315460151 Page 5 Return Frequency: 50 years TR -55 TABULAR HYDROGRAPH METHOD Type II. Distribution (24 hr. Duration Storm) Executed: 04 -26 -1994 10:31:50 Watershed file: - -> RENZ1 .MOP Hydrograph file: - -> RENZ1- AX.HYD Ridgemont Estates North - 3rd Addition Offsite drainage from SE of plat via existing /proposed ditches 50 -year and 100 -year storm return frequency NOTE: Peak discharge is 10x (as per 10x RCN values) Time Flow Time Flow . (hrs) (cfs) (hrs) (cfs) 18.6 1 22.4 1 18.7 1 22.5 1 18.8 1 22.6 1 18.9 1 22.7 1 19.0 1 22.8 1 19.1 1 22.9 1 19.2 1 23.0 1 19.3 3. 23.1 1 19.4 1 23.2 1 19.5 1 23.3 1 19.6 1 23.4 1 19.7 1 23.5 1 19.8 1 23.6 1 19.9 1 23.7 1 20.0 1 23.8 1 20.1 1 23.9 1 20.2 1 24.0 0 20.3 1 24.1 0 20.4 1 24.2 0 20.5 1 24.3 0 20.6 1 24.4 0 20.7 1 24.5 0 20.8 1 24.6 0 20.9 1 24.7 0 21.0 1 24.8 0 21.1 1 24.9 0 21.2 1 25.0 0 21.3 1 25.1 0 21.4 1 25.2 0 21.5 1 25.3 0 21.6 1 25.4 0 21.7 - 1 25.5 0 21.8 1 25.6 0 21.9 1 25.7 0 22.0 1 25.8 0 22.1 1 25.9 0 22.2 1 22.3 1 1 1 1 1 1 1 1 1 1 1 Quick TR -55 Version: 5.45 S /N: 1315460151 Page 1 Return Frequency: 100 years ' Subarea Description 'Rent -1 $enz -1 0.10 0.00 TR -55 TABULAR HYDROGRAPH METHOD Type II. Distribution (24 hr. Duration Storm) Executed: 04 -26 -1994 10:31:50 Watershed file: - -> RENZ1 .MOP Hydrograph file: - -> RENZ1- BX.HYD =1190 YEAR. 1-10K nzu s Ridgemont Estates North - 3rd Addition Offsite drainage from SE of plat' via existing /proposed ditches 50 -year and 100 -year storm return frequency NOTE: Peak discharge is 10x (as per 10x RCN values) »» Input Parameters Used to Compute Hydrograph «« 1 -22 AREA CN Tc * Tt Precip. I Runoff Ia /p (acres) (hrs) (hrs) (in) (in) input /used 114.20 65.0 0.10 0.00 2...- e03.6( 0.34 I.41 .41 * Travel time from subarea outfall to composite watershed outfall point. II I -- Subarea where user specified interpolation between Ia /p tables. Total area = 114.20 acres or 0.1784 sq.mi Peak discharge = 4 cfs 0, c 5> »» Computer Modifications of Input Parameters ««< Input Values Rounded Values Ia /p II Subarea Tc * Tt Tc * Tt Interpolated Ia /p Description (hr) (hr) (hr) (hr) (Yes /No) Messages ** ** Yes * Travel time from subarea outfall to composite watershed outfall point. ** Tc & Tt are available in the hydrograph tables. 1 1 1 Quick TR -55 Version: 5.45 S /N: 1315460151 Page 2 Return Frequency: 100 years Executed: 04 -26 -1994 10:31:50 Watershed file: - -> RENZ1 .MOP Hydrograph file: - -> RENZ1- BX.HYD Ridgemont Estates North - 3rd Addition Offsite drainage from SE of plat via existing /proposed ditches 50 -year and 100 -year storm return frequency NOTE: Peak discharge is 10x (as per 10x RCN values) »» Summary of Subarea Times to Peak «« Subarea Renz -1 Composite Watershed TR -55 TABULAR HYDROGRAPH METHOD Type II. Distribution (24 hr. Duration Storm) Peak Discharge at Time to Peak at Composite Outfall Composite Outfall (cfs) (hrs) 44 12.1 44 12.1 1-23 1 1 1 1 Quick TR -55 Version: 5.45 S /N: 1315460151 Page 3 Return Frequency: 100 years I Ridgemont Estates North - 3rd Addition Offsite drainage from SE of plat via existing /proposed ditches 50 -year and 100 -year storm return frequency ' NOTE: Peak discharge is 10x (as per 10x RCN values) I Composite Hydrograph Summary (cfs) Subarea "Description Renz -1 'total (cfs) 1 Subarea 12.5 12.6 12.7 12.8 13.0 13.2 13.4 13.6 13.8 Description hr hr hr hr hr hr hr hr hr enz -1 9 8 7 6 6 5 5 4 4 t otal (cfs) 1 1 1 Subarea Description Lenz - 1 "total (cfs) Subarea 18.0 19.0 20.0 22.0 26.0 Description 'Lenz -1 Irotal (cfs) TR -55 TABULAR HYDROGRAPH METHOD Type II. Distribution (24 hr. Duration Storm) Executed: 04 -26 -1994 10:31:50 Watershed file: - -> RENZ1 .MOP Hydrograph file: - -> RENZ1- BX.HYD -2.4 11.0 11.3 11.6 11.9 12.0 12.1 12.2 12.3 12.4 hr hr hr hr hr hr hr hr hr 0 0 0 4 18 44 27 12 10 0 0 0 4 18 44 27 12 10 9 8 7 6 6 5 5 4 4 14.0 14.3 14.6 15.0 15.5 16.0 16.5 17.0 17.5 hr hr hr hr hr hr hr hr hr 4 3 3 3 3 2 2 2 2 4 3 3 3 3 2 2 2 2 hr hr hr hr hr 2 2 2 1 0 2 2 2 1 0 I Quick TR -55 Version: 5.45 S /N: 1315460151 Page 4 Return Frequency: 100 years 1 TR -55 TABULAR HYDROGRAPH METHOD Type II. Distribution ' (24 hr. Duration Storm) Executed: 04 -26 -1994 10:31:50 Watershed file: - -> RENZ1 .MOP 1 Hydrograph file: - -> RENZ1- BX.HYD Ridgemont Estates North - 3rd Addition Offsite drainage from SE of plat via existing /proposed ditches 50 -year and 100 -year storm return frequency NOTE: Peak discharge is 10x (as per 10x RCN values) 1 Time Flow Time Flow I (hrs) (cfs) (hrs) (cfs) 11.0 0 14.8 3 I 11.1 0 14.9 ' 3 11.2 0 15.0 3 11.3 0 15.1 3 11.4 0 15.2 3 I 11.5 0 15.3 3 11.6 0 15.4 3 11.7 1 15.5 3 ' 11.8 3 15.6 3 11.9 4 15.7 3 12.0 18 15.8 2 12.1 44 15.9 2 I 12.2 27 16.0 2 12.3 12 16.1 2 12.4 10 16.2 2 ' 12.5 9 16.3 2 12.6 8 16.4 2 12.7 7 16.5 2 12.8 6 16.6 2 1 12.9 6 16.7 2 13.0 6 16.8 2 13.1 6 16.9 2 I 13.2 5 17.0 2 13.3 5 17.1 2 13.4 5 17.2 2 ' 13.5 5 17.3 2 13.6 4 17.4 2 13.7 4 17.5 2 13.8 4 17.6 2 t 13.9 4 17.7 2 14.0 4 17.8 2 14.1 4 17.9 2 ' 14.2 3 18.0 2 14.3 3 18.1 2 14.4 3 18.2 2 14.5 3 18.3 2 1 -2.5 14.6 3 14.7 3 18.4 2 18.5 2 Quick TR -55 Version: 5.45 S /N: 1315460151 Page 5 Return Frequency: 100 years TR -55 TABULAR HYDROGRAPH METHOD Type II. Distribution (24 hr. Duration Storm) Executed: 04 -26 -1994 10:31:50 Watershed file: - -> RENZ1 .MOP Hydrograph file: - -> RENZ1- BX.HYD Ridgemont Estates North - 3rd Addition Offsite drainage from SE of plat via existing /proposed ditches 50 -year and 100 -year storm return frequency NOTE: Peak discharge is lox (as per 10x RCN values) Time Flow Time Flow (hrs) (cfs) (hrs) (cfs) -18.6 2 22.4 1 18.7 2 22.5 1 18.8 2 22.6 1 18.9 2 22.7 1 19.0 2 22.8 1 19.1 2 22.9 1 19.2 2 23.0 1 19.3 2 23.1 1 19.4 2 23.2 1 19.5 2 23.3 1 19.6 2 23.4 1 19.7 2 23.5 1 19.8 2 23.6 1 19.9 2 23.7 1 20.0 2 23.8 1 20.1 2 23.9 1 20.2 2 24.0 0 20.3 2 24.1 0 20.4 2 24.2 0 20.5 2 24.3 0 20.6 2 24.4 0 20.7 2 24.5 0 20.8 2 24.6 0 20.9 2 24.7 0 21.0 2 24.8 0 21.1 1 24.9 0 21.2 1 25.0 0 21.3 1 25.1 0 21.4 1 25.2 0 21.5 1 25.3 0 21.6 1 25.4 0 21.7 - 1 25.5 0 21.8 1 25.6 0 21.9 1 25.7 0 22.0 1 25.8 0 22.1 1 25.9 0 22.2 1 22.3 1 -2.7 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 POND -2 Version: 5.15 S /N: 1295160123 Executed 04 -26 -1994 10:51:32 Unit .HYD File: RENZ1- AX.HYD Output Hydrograph: RENZ1- 50.HYD Multiplier Constant: .1 TIME (hrs) 11.00 11.10 11.20 11.30 11.40 11.50 11.60 11.70 11.80 11.90 12.00 12.10 12.20 12.30 12.40 12.50 12.60 12.70 12.80 12.90 13.00 13.10 13.20 13.30 13.40 13.50 13.60 13.70 13.80 13.90 14.00 14.10 14.20 14.30 14.40 14.50 14.60 14.70 14.80 14.90 15.00 15.10 * * * ** Multiply Hydrograph by Constant * * * ** Unit Ordinates 0.00 0.00 0.00 0.00 0.00 0.00 0.00 1.00 1.00 2.00 9.00 30.00 19.00 9.00 8.00 7.00 6.00 5.00 5.00 4.00 4.00 4.00 4.00 4.00 4.00 4.00 3.00 3.00 3.00 3.00 3.00 3.00 3.00 3.00 3.00 3.00 3.00 3.00 2.00 2.00 2.0D 2.00 Multiplier Constant x 0.100 x 0.100 x 0.100 • 0.100 x 0.100 x 0.100 • 0.100 • 0.100 x 0.100 • 0.100 • 0.100 • 0.100 • 0.100 • 0.100 • 0.100 • 0.100 x 0.100 • 0.100 ' X 0.100 X 0.100 x 0.100 • 0.100 x 0.100 • 0.100 x 0.100 x 0.100 x 0.100 • 0.100 x 0.100 x 0.100 x 0.100 x 0.100 x 0.100 x 0.100 x 0.100 X 0.100 x 0.100 X 0.100 X 0.100 x 0.100 x 0.100 x 0.100 Page 1 r ice: fcqZ 1. rrryihL -��. Output Hydrograph (cfs) 0.00 0.00 0.00 = 0.00 0.00 = 0.00 0.00 0.10 0.10 = 0.20 0.90 3.00 Q50 1.90 0.90 = 0.80 = 0.70 0.60 = 0.50 = 0.50 0.40 0.40 = 0.40 0.40 0.40 = 0.40 = 0.40 0.30 0.30 0.30 0.30 0.30 0.30 = 0.30 = 0.30 0.30 0.30 0.30 = 0.30 0.20 0.20 = 0.20 = 0.20 i 28 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 POND -2 Version: 5.15 SAN: 1295160123 Page 2 Executed 04 -26 -1994 10:51:32 * * * ** Multiply Hydrograph by Constant * * * ** Unit .HYD File: RENZ1- AX.HYD Output Hydrograph: RENZ1- 50.HYD Multiplier Constant: .1 TIME Unit Multiplier Output Hydrograph (hrs) Ordinates • Constant (cfs) 15.20 2.00 x 0.100 = 0.20 15.30 2.00 x 0.100 = 0.20 15.40 2.00 x 0.100 = 0.20 15.50 2.00 x 0.100 = 0.20 15.60 2.00 x 0.100 = 0.20 15.70 2.00 x 0.100 = 0.20 15.80 2.00 x 0.100 = 0.20 15.90 2.00 x 0.100 = 0.20 16.00 2.00 x 0.100 = 0.20 16.10 2.00 x 0.100 = 0.20 16.20 2.00 x 0.100 = 0.20 16.30 2.00 x 0.100 = 0.20 16.40 2.00 x 0.100 = 0.20 16.50 2.00 x 0.100 = 0.20 16.60 2.00 x 0.100 = 0.20 16.70 2.00 x 0.100 = 0.20 16.80 2.00 x 0.100 = 0.20 16.90 2.00 x 0.100 = 0.20 17.00 2.00 x 0.100 = 0.20 17.10 2.00 x 0.100 = 0.20 17.20 2.00 x 0.100 = 0.20 17.30 2.00 x 0.100 = 0.20 17.40 2.00 x 0.100 = 0.20 17.50 2.00 x 0.100 = 0.20 17.60 2.00 x 0.100 = 0.20 17.70 2.00 x 0.100 = 0.20 17.80 2.00 x 0.100 = 0.20 17.90 2.00 x 0.100 = 0.20 18.00 2.00 x 0.100 = 0.20 18.10 2.00 x 0.100 = 0.20 18.20 2.00 x 0.100 = 0.20 18.30 2.00 x 0.100 = 0.20 18.40 2.00 x 0.100 = 0.20 18.50 2.00 x 0.100 = 0.20 18.60 1.00 x 0.100 = 0.10 18.70 1.00 x 0.100 = 0.10 18.80 1.00 x 0.100 = 0.10 18.90 1.00 x 0.100 = 0.10 19.00 1.00 x 0.100 = 0.10 19.10 1.00 x 0.100 = 0.10 19.20 1.00 x 0.100 = 0.10 1-23 POND -2 Version: 5.15 S /N: 1295160123 Page 3 Executed 04 -26 -1994 10:51:32 * * * ** Multiply Hydrograph by Constant * * * ** Unit .HYD File: RENZ1- AX.HYD Output Hydrograph: RENZ1- 50.HYD Multiplier Constant: .1 TIME Unit Multiplier Output Hydrograph (hrs) Ordinates Constant (cfs) 19.30 1.00 x 0.100 = 0.10 19.40 1.00 x 0.100 = 0.10 19.50 1.00 x 0.100 = 0.10 19.60 1.00 x 0.100 = 0.10 19.70 1.00 x 0.100 = 0.10 19.80 1.00 x 0.100 = 0.10 19.90 1.00 x 0.100 = 0.10 20.00 1.00 x 0.100 = 0.10 20.10 1.00 x 0.100 = 0.10 20.20 1.00 x 0.100 = 0.10 20.30 1.00 x 0.100 = 0.10 20.40 1.00 x 0.100 = 0.10 20.50 1.00 x 0.100 = 0.10 20.60 1.00 x 0.100 = 0.10 20:70 1.00 x 0.100 = 0.10 20.80 1.00 x 0.100 = 0.10 20.90 1.00 x 0.100 = 0.10 21.00 1.00 x 0.100 = 0.10 21.10 1.00 x 0.100 = 0.10 21.20 1.00 x 0.100 = 0.10 21.30 1.00 x 0.100 = 0.10 21.40 1.00 x 0.100 = 0.10 21.50 1.00 x 0.100 = 0.10 21.60 1.00 x 0.100 = 0.10 21.70 1.00 x 0.100 = 0.10 21.80 1.00 x 0.100 = 0.10 21.90 1.00 x 0.100 = 0.10 22.00 1.00 x 0.100 = 0.10 22.10 1.00 x 0.100 = 0.10 22.20 1.00 x 0.100 = 0.10 22.30 1.00 x 0.100 = 0.10 22.40 1.00 x 0.100 = 0.10 22.50 1.00 x 0.100 = 0.10 22.60 1.00 x 0.100 = 0.10 22.70 1.00 x 0.100 = 0.10 22.80 1.00 x 0.100 = 0.10 22.90 1.00 x 0.100 = 0.10 23.00 1.00 x 0.100 = 0.10 23.10 1.00 x 0.100 = 0.10 23.20 1.00 x 0.100 = 0.10 23.30 1.00 x 0.100 = 0.10 i -30 1 POND -2 Version: 5.15 S /N: 1295160123 Page 4 ' Executed 04 -26 -1994 10:51:32 ' * * * ** Multiply Hydrograph by Constant * * * ** Unit .HYD File: RENZ1- AX.HYD Output Hydrograph: RENZ1- 50.HYD 1 Multiplier Constant: .1 I TIME (hrs) Unit Multiplier Output Hydrograph Ordinates Constant (cfs) 23.40 1.00 x 0.100 = 0.10 23.50 1.00 x 0.100 = 0.10 23.60 1.00 x 0.100 0.10 23.70 1.00 x 0.100 = 0.10 I 23.80 1.00 x 0.100 0.10 23.90 1.00 x 0.100 0.10 24.00 0.00 x 0.100 = 0.00 24.10 0.00 x 0.100 0.00 I 24.20 0.00 x 0.100 0.00 24.30 0.00 x 0.100 = 0.00 24.40 0.00 x 0.100 = 0.00 24.50 0.00 x 0.100 0.00 24.60 0.00 x 0.100 0.00 24.70 0.00 x 0.100 = 0.00 ' 24.80 0.00 x 0.100 0.00 24.90 0.00 x 0.100 0.00 25.00 0.00 x 0.100 = 0.00 25.10 0.00 x 0.100 = 0.00 I 25.20 0.00 x 0.100 0.00 25.30 0.00 x 0.100 0.00 25.40 0.00 x 0.100 = 0.00 I 25.50 0.00 x 0.100 0.00 25.60 0.00 x 0.100 0.00 25.70 0.00 x 0.100 = 0.00 25.80 0.00 x 0.100 = 0.00 ' 25.90 0.00 x 0.100 0.00 1 1 1 1 1-31 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 POND -2 Version: 5.15 S /N: 1295160123 Executed 04 -26 -1994 10:56:30 Unit .HYD File: RENZ1- BX.HYD Output Hydrograph: RENZ1- 00.HYD Multiplier Constant: .1 TIME (hrs) 11.00 11.10 11.20 11.30 11.40 11.50 11.60 11.70 11.80 11.90 12.00 12.10 12.20 12.30 12.40 12.50 12.60 12.70 12.80 12.90 13.00 13.10 13.20 13.30 13.40 13.50 13.60 13.70 13.80 13.90 14.00 14.10 14.20 14.30 14.40 14.50 14.60 14.70 14.80 14.90 15.00 15.10 * * * ** Multiply Hydrograph by Constant * * * ** Unit Ordinates 0.00 0.00 0.00 0.00 0.00 0.00 0.00 1.00 3.00 4.00 18.00 44.00 27.00 12.00 10.00 9.00 8.00 7.00 6.00 6.00 6.00 6.00 5.00 5.00 5.00 5.00 4.00 4.00 4.00 4.00 4.00 4.00 3.00 3.00 3.00 - 3.00 3.00 3.00 3.00 3.00 3.00 3.00 Multiplier Constant 0.100 0.100 0.100 0.100 0.100 0.100 0.100 0.100 0.100 0.100 0.100 0.100 0.100 0.100 0.100 0.100 0.100 0.100 0.100 0.106 0.100 0.100 0.100 0.100 0.100 0.100 0.100 0.100 0.100 0.100 0.100 0.100 0.100 0.100 0.100 0.100 0.100 0.100 0.100 0.100 0.100 0.100 Page 1 L AS J ; (00 - yeAv_ I AC:tvi+L " AP-01 Output Hydrograph (cfs) 0.00 0.00 0.00 0.00 = 0.00 = 0.00 0.00 = 0.10 0.30 0.40 1.80 = 4.40 = 2.70 1.20 1.00 = 0.90 = 0.80 = 0.70 0.60 = 0.60 0.60 = 0.60 0.50 0.50 0.50 = 0.50 0.40 0.40 0.40 0.40 = 0.40 0.40 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 = 0.30 0.30 I-32 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 POND -2 Version: 5.15 S /N: 1295160123 Page 2 Executed 04 -26 -1994 10:56:30 * * * ** Multiply Hydrograph by Constant * * * ** Unit .HYD File: RENZ1- BX.HYD Output Hydrograph: RENZ1- 00.HYD Multiplier Constant: .1 TIME Unit Multiplier Output Hydrograph (hrs) Ordinates Constant (cfs) 15.20 3.00 x 0.100 = 0.30 15.30 3.00 x 0.100 = 0.30 15.40 3.00 x 0.100 = 0.30 15.50 3.00 x 0.100 = 0.30 15.60 3.00 x 0.100 = 0.30 15.70 3.00 x 0.100 = 0.30 15.80 2.00 x 0.100 = 0.20 15.90 2.00 x 0.100 = 0.20 16.00 2.00 x 0.100 = 0.20 16.10 2.00 x 0.100 = 0.20 16.20 2.00 x 0.100 = 0.20 16.30 2.00 x 0.100 = 0.20 16.40 2.00 x 0.100 = 0.20 16.50 2.00 x 0.100 = 0.20 16.60 2.00 x 0.100 = 0.20 16.70 2.00 x 0.100 = 0.20 16.80 2.00 x 0.100 = 0.20 16.90 2.00 x 0.100 = 0.20 17.00 2.00 x 0.100 = 0.20 17.10 2.00 x 0.100 = 0.20 17.20 2.00 x 0.100 = 0.20 17.30 2.00 x 0.100 = 0.20 17.40 2.00 x 0.100 = 0.20 17.50 2.00 x 0.100 = 0.20 17.60 2.00 x 0.100 = 0.20 17.70 2.00 x 0.100 = 0.20 17.80 2.00 x 0.100 = 0.20 17.90 2.00 x 0.100 = 0.20 18.00 2.00 x 0.100 = 0.20 18.10 2.00 x 0.100 = 0.20 18.20 2.00 x 0.100 = 0.20 18.30 2.00 x 0.100 = 0.20 18.40 2.00 x 0.100 = 0.20 18.50 2.00 x 0.100 = 0.20 18.60 2.00 x 0.100 = 0.20 18.70 2.00 x 0.100 = 0.20 18.80 2.00 x 0.100 = 0.20 18.90 2.00 x 0.100 = 0.20 19.00 2.00 x 0.100 = 0.20 19.10 2.00 x 0.100 = 0.20 19.20 2.00 x 0.100 = 0.20 I -33 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 POND -2 Version: 5.15 S /N: 1295160123 Page 3 Executed 04 -26 -1994 10:56:30 * * * ** Multiply Hydrograph by Constant * * * ** Unit .HYD File: RENZ1- BX.HYD Output Hydrograph: RENZ1- 00.HYD Multiplier Constant: .1 TIME Unit Multiplier Output Hydrograph (hrs) Ordinates Constant (cfs) 19.30 2.00 x 0.100 = 0.20 19.40 2.00 x 0.100 = 0.20 19.50 2.00 x 0.100 = 0.20 19.60 2.00 x 0.100 = 0.20 19.70 2.00 x 0.100 = 0.20 19.80 2.00 x 0.100 = 0.20 19.90 2.00 x 0.100 = 0.20 20.00 2.00 x 0.100 = 0.20 20.10 2.00 x 0.100 = 0.20 20.20 2.00 x 0.100 = 0.20 20.30 2.00 x 0.100 = 0.20 20.40 2.00 x 0.100 = 0.20 20.50 2.00 x 0.100 = 0.20 20.60 2.00 x 0.100 = 0.20 20.70 2.00 x 0.100 = 0.20 20.80 2.00 x 0.100 = 0.20 20.90 2.00 x 0.100 = 0.20 21.00 2.00 x 0.100 = 0.20 21.10 1.00 x 0.100 = 0.10 21.20 1.00 x 0.100 = 0.10 21.30 1.00 x 0.100 = 0.10 21.40 1.00 x 0.100 = 0.10 21.50 1.00 x 0.100 = 0.10 21.60 1.00 x 0.100 = 0.10 21.70 1.00 x 0.100 = 0.10 21.80 1.00 x 0.100 = 0.10 21.90 1.00 x 0.100 = 0.10 22.00 1.00 x 0.100 = 0.10 22.10 1.00 x 0.100 = 0.10 22.20 1.00 x 0.100 = 0.10 22.30 1.00 x 0.100 = 0.10 22.40 1.00 x 0.100 = 0.10 22.50 1.00 x 0.100 = 0.10 22.60 1.00 x 0.100 = 0.10 22.70 1.00 x 0.100 = 0.10 22.80 1.00 x 0.100 = 0.10 22.90 1.00 x 0.100 = 0.10 23.00 1.00 x 0.100 = 0.10 23.10 1.00 x 0.100 = 0.10 23.20 1.00 x 0.100 = 0.10 23.30 1.00 x 0.100 = 0.10 1-34 POND -2 Version: 5.15 S /N: 1295160123 Page 4 Executed 04 -26 -1994 10:56:30 * * * ** Multiply Hydrograph by Constant * * * ** Unit .HYD File: RENZ1- BX.HYD Output Hydrograph: RENZ1- 00.HYD Multiplier Constant: .1 TIME Unit Multiplier Output Hydrograph (hrs) Ordinates - Constant (cfs) 23.40 1.00 x 0.100 = 0.10 23.50 1.00 x 0.100 = 0.10 23.60 1.00 x 0.100 = 0.10 23.70 1.00 x 0.100 = 0.10 23.80 1.00 x 0.100 = 0.10 23.90 1.00 x 0.100 = 0.10 24.00 0.00 x 0.100 = 0.00 24.10 0.00 x 0.100 = 0.00 24.20 0.00 x 0.100 = 0.00 24.30 0.00 x 0.100 = 0.00 24.40 0.00 x 0.100 = 0.00 24.50 0.00 x 0.100 = 0.00 24.60 0.00 x 0.100 = 0.00 24.70 0.00 x 0.100 = 0.00 24.80 0.00 x 0.100 = 0.00 24.90 0.00 x 0.100 = 0.00 25.00 0.00 x 0.100 = 0.00 25.10 0.00 x 0.100 = 0.00 25.20 0.00 x 0.100 = 0.00 25.30 0.00 x 0.100 = 0.00 25.40 0.00 x 0.100 = 0.00 25.50 0.00 x 0.100 = 0.00 25.60 0.00 x 0.100 = 0.00 25.70 0.00 x 0.100 = 0.00 25.80 0.00 x 0.100 = 0.00 25.90 0.00 x 0.100 = 0.00 1 -35 t iI t DATE == 4/12/94 DESIGNER = D.H.C. BASIN REN -'J PR:OJECr NOME = R1DGEMONT ESTATES NORTH - ADDITION I DESCRIPTION = EXISTING FLOW FROM UL.D" "RIDGEMONT ESTATES" 11 SUBAREA 1 = 4..'1.1 ACRES SUBAREA 2 = 15.220 AST Ea TOTAL FREA - 19.542 ACRES OVERLAND FLOW VALUES c:t = .15 L - 1100 N = • - .0D CHANNEL FLOW VALUES L = 000 `1 " _ }.2 _ .172 N = .016 B = 0 • =" .00 TD = .._ CONFUTED VALUES DUR = 14.67 150 = 2.49 U50 = 15.7..7 on = 15.7 :1 RATIONAL. FORMULA HYDROLOGY SUBAREA 1 RUNOFF CUI_FF""ICIENT = .9 SUBAREA 2 RUNOFF COEFFICIENT = .15 I-SG COMPOSITE RUNOFF COEFF,C:IENT = .2115566472214 KenzZ. RCN Quick TR -55 Ver.5.45 S/N:1315460151 Executed: 09:33:34 04 -26 -1994 Composite Area: Renz -2 Ridgemont Estates North - 3rd Addition Basin: Renz -2 flow via ex'g. 15" culvert from east to energy dissipator in 5th Addition RUNOFF CURVE NUMBER DATA SURFACE DESCRIPTION Impervious (roads, houses) Pervious (lawns, landscaping) Pervious (undeveloped slopes) COMPOSITE AREA - - -> cz Ls„,-, - _ AREA (acres) 4.31 ✓ 13.50 c/ 1.73 19.54 V CN 98 61 ✓ 66 '- / 69.6 ✓ ( 70 ) 1 -3 F -E�JG '/. RCK1 Quick TR -55 Ver.5.45 S/N:1315460151 Executed: 10:24:53 04 -26 -1994 Composite Area: Renz -2 Ridgemont Estates North - 3rd Addition Basin: Renz -2 * NOTE: areas = 10x to increase accuracy hydrographs = 0.10x (back to original) RUNOFF CURVE NUMBER DATA SURFACE DESCRIPTION Impervious (roads, houses) Pervious (lawns, landscaping) Pervious (undeveloped slopes) AREA (acres) 43.10 135.00 17.30 CN 98 61 66 COMPOSITE AREA - - -> 195.40 69.6 ( 70 ) 1 -38 1 I Quick TR -55 Ver.5.45 S/N:1315460151 Executed: 09:54:25 04 -26 -1994 RENZ2.TCT ' Ridgemont Estates North - 3rd Addition Basin: Renz -2 Flow path: hilltop to Conklin to 22nd, 15" CMP to energy dissipator 1 Note: flow time in pipe is negligible, thus excluded Tc COMPUTATIONS FOR: Basin Renz -2 1 1 1 1 1 1 1 1 1 1 1 1 ' SHEET FLOW (Applicable to Tc only) Segment ID hilltop Surface description undeveloped I Manning's roughness coeff., n 0.0500 Flow length, L (total < or = 300) ft 10.0 Two -yr 24 -hr rainfall, P2 in 1.400 Land slope, s ft /ft 0.0500 0.8 .007 * (n *L) T = hrs 0.01 / = 0.01 0.5 0.4 P2 * s SHALLOW CONCENTRATED FLOW Segment ID NWslope Surface (paved or unpaved)? Unpaved Flow length, L ft 1100.0 Watercourse slope, s ft /ft 0.0800 0.5 Avg.V = Csf * (s) where: Unpaved Csf = 16.1345 Paved Csf = 20.3282 T = L / (3600 *V) ft /s 4.5635 ' CHANNEL FLOW ' Segment ID gutter Cross Sectional Flow Area, a sq.ft 1.96 Wetted perimeter, Pw ft 12.21 Hydraulic radius, r = a /Pw ft 0.161 Channel slope, s ft /ft 0.0800 Manning's roughness coeff., n 0.0160 T Z hrs 0.07 = 0.07 T 2/3 1/2 1.49 * r * s V = ft /s 7.7799 n Flow length, L ft 2000 T =,L / (3600 *V) hrs 0.07 = 0.07 TOTAL TIME (hrs) 0.15 1-35 1 1 1 1 1 1 1 1 1 1 1 1 1 Quick TR -55 Version: 5.45 S /N: 1315460151 Page 1 Return Frequency: 50 years Subarea Description 1 Renz -2 TR -55 TABULAR HYDROGRAPH METHOD ' Type II. Distribution (24 hr. Duration Storm) Executed: 04 -26 -1994 10:42:00 Watershed file: - -> RENZ2 .MOP Hydrograph file: - -> RENZ2 - AX.HYD [So yE^�, to x Ac=i•.51 Ridgemont Estates North - 3rd Addition Offsite drainage from SE of plat via existing /proposed ditches 50 -year and 100 -year storm return frequency NOTE: Peak discharge is 10x (as per 10x RCN values) »» Input Parameters Used to Compute Hydrograph «« AREA CN (acres) Renz -2 195.40 ti 70.0 / 0.20V 0.00 Tc * Tt Precip. I Runoff Ia /p (hrs) (hrs) (in) (in) input /used 2.40 ✓ 1 0.41 I.36 .36 * Travel time from subarea outfall to composite watershed outfall point. 1 I -- Subarea where user specified interpolation between Ia /p tables. Total area = 195.40 acres or 0.3053 sq.mi ` Peak discharge = 75 cfs C75 015) 1 1 »» Computer Modifications of Input Parameters ««< Input Values I Subarea Tc * Tt Description (hr) (hr) Rounded Values Ia /p Tc * Tt Interpolated (hr) (hr) (Yes /No) 0.15 0.00 0.20 0.00 Yes Messages * Travel time from subarea outfall to composite watershed outfall point. 1 -4o Quick TR -55 Version: 5.45 S /N: 1315460151 Page 2 Return Frequency: 50 years Subarea Renz -2 Composite Watershed TR -55 TABULAR HYDROGRAPH METHOD Type II. Distribution (24 hr. Duration Storm) Executed: 04 -26 -1994 10:42:00 Watershed file: - -> RENZ2 .MOP Hydrograph file: - -> RENZ2 - AX.HYD Ridgemont Estates North - 3rd Addition Offsite drainage from SE of plat via existing /proposed ditches 50 -year and 100 -year storm return frequency NOTE: Peak discharge is 10x (as per 10x RCN values) »» Summary of Subarea Times to Peak «« Peak Discharge at Time to Peak at Composite Outfall Composite Outfall (cfs) (hrs) 75 12.2 75 12.2 1-41 1 1 1 1 I Ridgemont Estates North - 3rd Addition . Offsite drainage from SE of plat via existing /proposed ditches 50 -year and 100 -year storm return frequency 1 NOTE: Peak discharge is 10x (as per 10x RCN values) 1 Composite Hydrograph Summary (cfs) ' Total (cfs) 1 1 1 1 Quick TR -55 Version: 5.45 S /N: 1315460151 Page 3 Return Frequency: 50 years Subarea ' Description Renz -2 Subarea Description Renz -2 1 Total (cfs) Subarea Description Renz -2 1 Total (cfs) Subarea 18.0 19.0 20.0 22.0 26.0 Description hr hr hr hr hr 1 Renz -2 Total (cfs) TR -55 TABULAR HYDROGRAPH METHOD Type II. Distribution (24 hr. Duration Storm) Executed: 04 -26 -1994 10:42:00 Watershed file: - -> RENZ2 .MOP Hydrograph file: - -> RENZ2- AX.HYD I -42 11.0 11.3 11.6 11.9 12.0 12.1 12.2 12.3 12.4 hr hr hr hr hr hr hr hr hr 0 0 0 3 16 51 75 56 32 0 0 0 3 16 51 75 56 32 12.5 12.6 12.7 12.8 13.0 13.2 13.4 13.6 13.8 hr hr hr hr hr hr hr hr hr 24 20 17 14 12 11 10 9 8 24 20 17 14 12 11 10 9 8 14.0 14.3 14.6 15.0 15.5 16.0 16.5 17.0 17.5 hr hr hr hr hr hr hr hr hr 7 7 6 6 5 5 4 4 4 7 7 6 6 5 5 4 4 4 4 3 3 3 0 4 3 3 3 0 1 I Quick TR -55 Version: 5.45 S /N: 1315460151 Page 4 Return Frequency: 50 years 1 TR -55 TABULAR HYDROGRAPH METHOD Type II. Distribution (24 hr. Duration Storm) Executed: 04 -26 -1994 10:42:00 Watershed file: - -> RENZ2 .MOP Hydrograph file: - -> RENZ2 - AX.HYD Ridgemont Estates North - 3rd Addition Offsite drainage from SE of plat via existing /proposed ditches 50 -year and 100 -year storm return frequency NOTE: Peak discharge is 10x (as per 10x RCN values) Time Flow Time Flow (hrs) (cfs) (hrs) (cfs) 11.0 0 14.8 6 11.1 0 14.9 6 11.2 0 15.0 6 11.3 0 15.1 6 11.4 0 15.2 6 11.5 0 15.3 5 11.6 0 15.4 5 11.7 1 15.5 5 11.8 2 15.6 5 11.9 3 15.7 5 12.0 16 15.8 5 12.1 51 15.9 5 12.2 75 16.0 5 12.3 56 16.1 5 12.4 32 16.2 5 12.5 24 16.3 4 12.6 20 16.4 4 12.7 17 16.5 4 12.8 14 16.6 4 12.9 13 16.7 4 13.0 12 16.8 4 13.1 12 16.9 4 13.2 11 17.0 4 13.3 10 17.1 4 13.4 10 17.2 4 13.5 10 17.3 4 13.6 9 17.4 4 13.7 8 17.5 4 13.8 8 17.6 4 13.9 8 17.7 4 14.0 7 17.8 4 14.1 7 17.9 4 14.2 7 18.0 4 14.3 7 18.1 4 14.4 7 18.2 4 14.5 6 18.3 4 I -4S 14.6 6 18.4 4 14.7 6 18.5 4 1 -44 Quick TR -55 Version: 5.45 S /N: 1315460151 Page 5 Return Frequency: 50 years TR -55 TABULAR HYDROGRAPH METHOD Type II. Distribution (24 hr. Duration Storm) Executed: 04 -26 -1994 10:42:00 Watershed file: - -> RENZ2 .MOP Hydrograph file: - -> RENZ2 - AX.HYD Ridgemont Estates North - 3rd Addition Offsite drainage from SE of plat via existing /proposed ditches 50 -year and 100 -year storm return frequency NOTE: Peak discharge is 10x (as per 10x RCN values) Time Flow Time Flow (hrs) (cfs) (hrs) (cfs) 18.6 3 22.4 3 18.7 3 22.5 3 18.8 3 . 22.6 3 18.9 3 22.7 2 19.0 3 22.8 2 19.1 3 22.9 2 19.2 3 23.0 2 19.3 3 23.1 2 19.4 3 23.2 2 19.5 3 23.3 2 19.6 - 3 23.4 2 19.7 3 23.5 2 19.8 3 23.6 2 19.9 3 23.7 2 20.0 3 23.8 2 20.1 3 23.9 2 20.2 3 24.0 2 20.3 3 24.1 1 20.4 3 24.2 1 20.5 3 24.3 1 20.6 3 24.4 1 20.7 3 24.5 1 20.8 3 24.6 1 20.9 3 24.7 1 21.0 3 24.8 1 21.1 3 24.9 1 21.2 3 25.0 1 21.3 3 25.1 . 1 21.4 3 25.2 1 21.5 3 25.3 1 21.6 3 25.4 0 21.7 - 3 25.5 0 21.8 3 25.6 0 21.9 3 25.7 0 22.0 3 25.8 0 22.1 3 25.9 0 22.2 3 22.3 3 I -45 1 1 1 1 1 1 1 1 1 1 1 1 1 Quick TR -55 Version: 5.45 S /N: 1315460151 Page 1 Return Frequency: 100 years inz -2 TR -55 TABULAR HYDROGRAPH METHOD Type II. Distribution (24 hr. Duration Storm) Executed: 04 -26 -1994 10:42:00 Watershed file: - -> RENZ2 .MOP Hydrograph file: - -> RENZ2 - BX.HYD I loo yehr_, lox Aria Ridgemont Estates North - 3rd Addition Offsite drainage from SE of plat via existing /proposed ditches 50 -year and 100 -year storm return frequency NOTE: Peak discharge is 10x (as per 10x RCN values) »» Input Parameters Used to Compute Hydrograph «« 1 Subarea AREA CN Tc * Tt Precip. I Runoff Ia /p Description (acres) (hrs) (hrs) (in) (in) input /used I 2enz -2 195.40 70.0 0.20 0.00 2.60 I 0.50 I.33 .33 * Travel time from subarea outfall to composite watershed outfall point. 1 1 -- Subarea where user specified interpolation between Ia /p tables. Total area = 195.40 acres or 0.3053 sq.mi� nn\ Peak discharge = 9.9 -efs 05,a... . J ✓ 1 »» Computer Modifications of Input Parameters ««< Input Values Rounded Values Ia /p IL Subarea Tc * Tt Tc * Tt Interpolated Ia /p escription (hr) (hr) (hr) (hr) (Yes /No) Messages 0.15 0.00 0.20 0.00 Yes * Travel time from subarea outfall to composite watershed outfall point. Quick TR -55 Version: 5.45 .S /N: 1315460151 Page 2 Return Frequency: 100 years TR -55 TABULAR HYDROGRAPH METHOD Type II. Distribution (24 hr. Duration Storm) . Executed: 04 -26 -1994 10:42:00 Watershed file: - -> RENZ2 .MOP Hydrograph file: - -> RENZ2 - BX.HYD Ridgemont Estates North - 3rd Addition Offsite drainage from SE of plat via existing /proposed ditches 50 -year and 100 -year storm return frequency NOTE: Peak discharge is 10x (as per 10x RCN values) »» Summary of Subarea Times to Peak «« Subarea Renz -2 Composite Watershed Peak Discharge at Time to Peak at Composite Outfall Composite Outfall (cfs) (hrs) 99 osa 40 12.2 12.2 I -1-7 1 1 1 1 1 1 1 Subarea 11.0 11.3 11.6 11.9 12.0 12.1 12.2 12.3 12.4 1 Description hr hr hr hr hr hr hr hr hr Renz -2 0 0 0 5 24 73 99 72 41 1 Total (cfs) 0 0 0 5 24 73 99 72 41 ' Subarea 12.5 12.6 12.7 12.8 13.0 13.2 13.4 13.6 13.8 1 Description hr hr hr hr hr hr hr hr hr Renz -2 30 24 20 17 14 13 11 11 10 1 Total (cfs) 30 24 20 17 14 13 11 11 10 1 Quick TR -55 Version: 5.45 S /N: 1315460151 Page 3 Return Frequency: 100 years Subarea Description 1 Renz -2 1 Total (cfs) 1 1 Subarea Description 1 Renz -2 TR -55 TABULAR HYDROGRAPH METHOD Type II. Distribution (24 hr. Duration Storm) Executed: 04 -26 -1994 10:42:00 Watershed file: - -> RENZ2 .MOP Hydrograph file: - -> RENZ2- BX.HYD Ridgemont Estates North - 3rd Addition Offsite drainage from SE of plat via existing /proposed ditches 50 -year and 100 -year storm return frequency NOTE: Peak discharge is 10x (as per 10x RCN values) Composite Hydrograph Summary (cfs) I -48 14.0 14.3 14.6 15.0 15.5 16.0 16.5 17.0 17.5 hr hr hr hr hr hr hr hr hr 9 8 7 7 6 6 5 5 5 9 8 7 7 6 6 5 5 5 18.0 19.0 20.0 22.0 26.0 hr hr hr hr hr 4 4 3 3 0 1 Total (cfs) 4 4 3 3 0 1 I Quick TR -55 Version: 5.45 S /N: 1315460151 Page 4 Return Frequency: 100 years TR -55 TABULAR HYDROGRAPH METHOD Type II. Distribution (24 hr. Duration Storm) Executed: 04 -26 -1994 10:42:00 Watershed file: - -> RENZ2 .MOP 1 Hydrograph file: - -> RENZ2 - BX.HYD Ridgemont Estates North - 3rd Addition Offsite drainage from SE of plat via existing /proposed ditches 50 -year and 100 -year storm return frequency NOTE: Peak discharge is 10x (as per 10x RCN values) 1 Time Flow Time Flow 1 (hrs) (cfs) (hrs) (cfs) 11.0 0 14.8 7 11.1 0 14.9 7 I 11.2 0 15.0 7 11.3 0 15.1 7 11.4 0 15.2 7 1 11.5 0 15.3 6 11.6 0 15.4 6 11.7 2 15.5 6 11.8 3 15.6 6 I 11.9 5 15.7 6 12.0 24 15.8 6 12.1 73 15.9 6 I 12.2 99 16.0 6 12.3 72 16.1 6 12.4 41 16.2 6 1 12.5 30 16.3 5 12.6 24 16.4 5 12.7 20 16.5 5 12.8 17 16.6 5 I 12.9 16 16.7 5 13.0 14 16.8 5 13.1 14 16.9 5 I 13.2 13 17.0 5 13.3 12 17.1 5 13.4 11 17.2 5 13.5 11 17.3 5 13.6 11 17.4 5 13.7 10 17.5 5 13.8 10 17.6 5 1 13.9 9 17.7 5 14.0 9 17.8 4 14.1 9 17.9 4 1 14.2 8 18.0 4 14.3 8 18.1 4 14.4 8 18.2 4 14.5 7 18.3 4 1 -4-9 14.6 7 18.4 4 14.7 7 18.5 4 1 -50 Quick TR -55 Version: 5.45 S /N: 1315460151 Page 5 Return Frequency: 100 years TR -55 TABULAR HYDROGRAPH METHOD Type II. Distribution (24 hr. Duration Storm) Executed: 04 -26 -1994 10:42:00 Watershed file: - -> RENZ2 .MOP Hydrograph file: - -> RENZ2 - BX.HYD Ridgemont Estates North - 3rd Addition Offsite drainage from SE of plat via existing /proposed ditches 50 -year and 100 -year storm return frequency NOTE: Peak discharge is 10x (as per 10x RCN values) Time Flow Time Flow (hrs) (cfs) (hrs) (cfs) 18.6 4 22.4 3 18.7 4 22.5 3 18.8 4 22.6 3 18.9 4 22.7 2 19.0 4 22.8 2 19.1 4 22.9 2 19.2 4 23.0 2 19.3 4 23.1 2 19.4 4 23.2 2 19.5 4 23.3 2 19.6 3 23.4 2 19.7 3 23.5 2 19.8 3 23.6 2 19.9 3 23.7 2 20.0 3 23.8 2 20.1 3 23.9 2 20.2 3 24.0 2 20.3 3 24.1 1 20.4 3 24.2 1 20.5 3 24.3 1 20.6 3 24.4 1 20.7 3 24.5 1 20.8 3 24.6 1 20.9 3 24.7 1 21.0 3 24.8 1 21.1 3 24.9 1 21.2 3 25.0 1 21.3 3 25.1 1 21.4 3 25.2 1 21.5 3 25.3 1 21.6 3 25.4 0 21.7 3 25.5 0 21.8 3 25.6 0 21.9 3 25.7 0 22.0 3 25.8 22.1 3 25.9 22.2 3 22.3 3 1 -51 1 1 1 ' Unit .HYD File: RENZ2- AX.HYD Output Hydrograph: RENZ2- 50.HYD 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 POND -2 Version: 5.15 S /N: 1295160123 Page 1 Executed 04 -26 -1994 11:01:51 * * * ** Multiply Hydrograph by Constant * * * ** Multiplier Constant: .1 TIME Unit Multiplier Output Hydrograph (hrs) Ordinates Constant (cfs) -Sz 6ns :NJ : RCkJz - g o - "Acres AfoiiS 11.00 0.00 x 0.100 = 0.00 11.10 0.00 x 0.100 = 0.00 11.20 0.00 x 0.100 = 0.00 11.30 0.00 x 0.100 = 0.00 11.40 0.00 x 0.100 = 0.00 11.50 0.00 x 0.100 = 0.00 11.60 0.00 x 0.100 = 0.00 11.70 1.00 x 0.100 = 0.10 11.80 2.00 x 0.100 = 0.20 11.90 3.00 x 0.100 = 0.30 12.00 16.00 x 0.100 = 1.60 12.10 51.00 x 0.100 = 5.10 ✓ 12.20 75.00 x 0.100 = 7.50'F 12.30 56.00 x 0.100 = 5.60 12.40 32.00 x 0.100 = 3.20 12.50 24.00 x 0.100 = 2.40 12.60 20.00 x 0.100 = 2.00 12.70 17.00 x 0.100 = 1.70 12.80 14.00 x 0.100 = 1.40 12.90 13.00 x 0.100 = 1.30 13.00 12.00 x 0.100 = 1.20 13.10 12.00 x 0.100 = 1.20 13.20 11.00 x 0.100 = 1.10 13.30 10.00 x 0.100 = 1.00 13.40 10.00 x 0.100 = 1.00 13.50 10.00 x 0.100 = 1.00 13.60 9.00 x 0.100 = 0.90 13.70 8.00 x 0.100 = 0.80 13.80 8.00 x 0.100 = 0.80 13.90 8.00 x 0.100 = 0.80 14.00 7.00 x 0.100 = 0.70 14.10 7.00 x 0.100 = 0.70 14.20 7.00 x 0.100 = 0.70 14.30 7.00 x 0.100 = 0.70 14.40 7.00 x 0.100 = 0.70 14.50 6.00 x 0.100 = 0.60 14.60 6.00 x 0.100 = 0.60 14.70 6.00 x 0.100 = 0.60 14.80 6.00 x 0.100 = 0.60 14.90 6.00 x 0.100 = 0.60 15.00 6.00 x 0.100 = 0.60 15.10 6.00 x 0.100 = 0.60 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 POND -2 Version: 5.15 S /N: 1295160123 Page 2 Executed 04 -26 -1994 11:01:51 * * * ** Multiply Hydrograph by Constant * * * ** Unit .HYD File: RENZ2- AX.HYD Output Hydrograph: RENZ2- 50.HYD Multiplier Constant: .1 TIME Unit Multiplier Output Hydrograph (hrs) Ordinates . Constant (cfs) 15.20 6.00 x 0.100 = 0.60 15.30 5.00 x 0.100 = 0.50 15.40 5.00 x 0.100 = 0.50 15.50 5.00 x 0.100 = 0.50 15.60 5.00 x 0.100 = 0.50 15.70 5.00 x 0.100 = 0.50 15.80 5.00 x 0.100 = 0.50 15.90 5.00 x 0.100 = 0.50 16.00 5.00 x 0.100 = 0.50 16.10 5.00 x 0.100 = 0.50 16.20 5.00 x 0.100 = 0.50 16.30 4.00 x 0.100 = 0.40 16.40 4.00 x 0.100 = 0.40 16.50 4.00 x 0.100 = 0.40 16.60 4.00 x 0.100 = 0.40 16.70 4.00 x 0.100 = 0.40 16.80 4.00 x 0.100 = 0.40 16.90 4.00 x 0.100 = 0.40 17.00 4.00 x 0.100 = 0.40 17.10 4.00 x 0.3.00 0.40 17.20 4.00 x 0.100 = 0.40 17.30 4.00 x 0.100 = 0.40 17.40 4.00 x 0.100 = 0.40 17.50 4.00 x 0.100 = 0.40 17.60 4.00 x 0.100 = 0.40 17.70 4.00 x 0.100 = 0.40 17.80 4.00 x 0.100 = 0.40 17.90 4.00 x 0.100 = 0.40 18.00 4.00 x 0.100 = 0.40 18.10 4.00 x 0.100 = 0.40 18.20 4.00 x 0.100 = .0.40 18.30 4.00 x 0.100 = 0.40 18.40 4.00 x 0.100 = 0.40 18.50 4.00 x 0.100 = 0.40 18.60 3.00 x 0.100 = 0.30 18.70 3.00 x 0.100 = 0.30 18.80 3.00 x 0.100 = 0.30 18.90 3.00 x 0.100 = 0.30 19.00 3.00 x 0.100 = 0.30 19.10 3.00 x 0.100 = 0.30 19.20 3.00 x 0.100 = 0.30 1-53 1 1 1 Unit .HYD File: RENZ2- AX.HYD Output Hydrograph: RENZ2- 50.HYD 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 POND -2 Version: 5.15 S /N: 1295160123 Page 3 Executed 04 -26 -1994 11:01:51 Multiplier Constant: .1 TIME Unit Multiplier Output Hydrograph (hrs) Ordinates Constant (cfs) 19.30 3.00 x 0.100 = 0.30 19.40 3.00 x 0.100 = 0.30 19.50 3.00 x 0.100 = 0.30 19.60 3.00 x 0.100 = 0.30 19.70 3.00 x 0.100 = 0.30 19.80 3.00 x 0.100 = 0.30 19.90 3.00 x 0.100 = 0.30 20.00 3.00 x 0.100 = 0.30 20.10 3.00 x 0.100 = 0.30 20.20 3.00 x 0.100 = 0.30 20.30 3.00 x 0.100 = 0.30 20.40 3.00 x 0.100 = 0.30 20.50 ' 3.00 x 0.100 = 0.30 20.60 3.00 x 0.100 = 0.30 20.70 3.00 x 0.100 = 0.30 20.80 3.00 x 0.100 = 0.30 20.90 3.00 x 0.100 = 0.30 21.00 3.00 x 0.100 = 0.30 21.10 3.00 x 0.100 = 0.30 21.20 3.00 x 0.100 = 0.30 21.30 3.00 x 0.100 = 0.30 21.40 3.00 x 0.100 = 0.30 21.50 3.00 x 0.100 = 0.30 21.60 3.00 x 0.100 = 0.30 21.70 3.00 x 0.100 = 0.30 21.80 3.00 x 0.100 = 0.30 21.90 3.00 x 0.100 = 0.30 22.00 3.00 x 0.100 = 0.30 22.10 3.00 x 0.100 = 0.30 22.20 3.00 x 0.100 = 0.30 22.30 3.00 x 0.100 = 0.30 22.40 3.00 x 0.100 = 0.30 22.50 3.00 x 0.100 = 0.30 22.60 3.00 x 0.100 = 0.30 22.70 2.00 x 0.100 = 0.20 22.80 2.00 x 0.100 = 0.20 22.90 2.00 x 0.100 = 0.20 23.00 2.00 x 0.100 = 0.20 23.10 2.00 x 0.100 = 0.20 23.20 2.00 x 0.100 = 0.20 23.30 2.00 x 0.100 = 0.20 * * * ** Multiply Hydrograph by Constant * * * ** 1 -54 1 1 POND -2 Version: 5.15 S /N: 1295160123 Page 4 Executed 04 -26 -1994 11:01:51 * * * ** Multiply Hydrograph by Constant * * * ** Unit .HYD File: RENZ2- AX.HYD Output Hydrograph: RENZ2- 50.HYD Multiplier Constant: .1 ' TIME Unit Multiplier Output Hydrograph (hrs) Ordinates Constant (cfs) 23.40 23.50 23.60' 1 23.70 23.80 23.90 24.00 ' 24.10 24.20 24.30 24.40 24.50 24.60 24.70 24.80 24.90 25.00 ' 25.10 25.20 25.30 ' 25.40 25.50 25.60 25.70 25.80 25.90 1 1 1 1 1 2.00 x 0.100 = 0.20 2.00 x 0.100 = 0.20 2.00 x 0.100 = 0.20 2.00 x 0.100 = 0.20 2.00 x 0.100 = 0.20 2.00 x 0.100 = 0.20 2.00 x 0.100 = 0.20 1.00 x 0.100 = 0.10 1.00 x 0.100 = 0.10 1.00 x 0.100 = 0.10 1.00 x 0.100 = 0.10 1.00 x 0.100 = 0.10 1.00 X 0.100 = 0.10 1.00 X 0.100 = 0.10 1.00 x 0.100 = 0.10 1.00 x 0.100 = 0.10 1.00 x 0.100 = 0.10 1.00 x 0.100 = 0.10 1.00 x 0.100 = 0.10 1.00 x 0.100 = 0.10 0.00 x 0.100 = 0.00 0.00 x 0.100 = 0.00 0.00 x 0.100 = 0.00 0.00 x 0.100 = 0.00 0.00 x 0.100 = 0.00 0.00 x 0.100 = 0.00 1 -55 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 POND -2 Version: 5.15 S /N: 1295160123 Page 1 Executed 04 -26 -1994 11:06:56 * * * ** Multiply Hydrograph by Constant * * * ** &t$:N : too-WAR. 'Acrvv-" A2cA Unit .HYD File: RENZ2- BX.HYD Output Hydrograph: RENZ2- 00.HYD Multiplier Constant: .1 TIME Unit Multiplier Output Hydrograph (hrs) Ordinates - Constant (cfs) 11.00 11.10 11.20 11.30 11.40 11.50 11.60 11.70 11.80 11.90 12.00 12.10 12.20 12.30 12.40 12.50 12.60 12.70 12.80 12.90 13.00 13.10 13.20 13.30 13.40 13.50 13.60 13.70 13.80 13.90 14.00 14.10 14.20 14.30 14.40 14.50 14.60 14.70 14.80 14.90 15.00 15.10 0.00 x 0.100 0.00 x 0.100 0.00 x 0.100 0.00 x 0.100 0.00 x 0.100 0.00 x 0.100 0.00 x 0.100 2.00 x 0.100 3.00 x 0.100 5.00 x 0.100 24.00 x 0.100 73.00 x 0.100 99.00 x 0.100 72.00 x 0.100 41.00 x 0.100 30.00 x 0.100 24.00 x 0.100 20.00 x 0.100 17.00 x 0.100 16.00 x 0.100 14.00 x 0.100 14.00 x 0.100 13.00 x 0.100 12.00 x 0.100 11.00 x 0.100 11.00 x 0.100 11.00 x 0.100 10.00 x 0.100 10.00 x 0.100 9.00 x 0.100 9.00 x 0.100 9.00 x 0.100 8.00 x 0.100 8.00 x 0.100 8.00 x 0.100 7.00 x 0.100 7.00 x 0.100 7.00 x 0.100 7.00 x 0.100 7.00 x 0.100 7.00 x 0.100 7.00 x 0.100 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.20 0.30 0.50 2.40 7.30 9440 7.20 4.10 3.00 2.40 2.00 1.70 1.60 1.40 1.40 1.30 1.20 1.10 1.10 1.10 1.00 1.00 0.90 0.90 0.90 0.80 0.80 0.80 0.70 0.70 0.70 0.70 0.70 0.70 0.70 I -5G 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 POND -2 Version: 5.15 S /N: 1295160123 Page 2 Executed 04 -26 -1994 11:06:56 * * * ** Multiply Hydrograph by Constant * * * ** Unit .HYD File: RENZ2- BX.HYD Output Hydrograph: RENZ2- 00.HYD Multiplier Constant: .1 TIME Unit Multiplier Output Hydrograph (hrs) Ordinates • Constant (cfs) • 15.20 15.30 15.40 15.50 15.60 15.70 15.80 15.90 16.00 16.10 16.20 16.30 16.40 16.50 16.60 16.70 16.80 16.90 17.00 17.10 17.20 17.30 17.40 17.50 17.60 17.70 17.80 17.90 18.00 18.10 18.20 18.30 18.40 18.50 18.60 18.70 18.80 18.90 19.00 19.10 19.20 7.00 x 0.100 6.00 x 0.100 6.00 x 0.100 6.00 x 0.100 6.00 x 0.100 6.00 x 0.100 6.00 x 0.100 6.00 x 0.100 6.00 x 0.100 6.00 x 0.100 6.00 x 0.100 5.00 x 0.100 5.00 x 0.100 5.00 x 0.100 5.00 x 0.100 5.00 x 0.100 5.00 x 0.100 5.00 x 0.100 5.00 x 0.100 5.00 x 0.100 5.00 x 0.100 5.00 x 0.100 5.00 x 0.100 5.00 x 0.100 5.00 x 0.100 5.00 x 0.100 4.00 x 0.100 4.00 x 0.100 4.00 x 0.100 4.00 x 0.100 4.00 x 0.100 4.00 x 0.100 4.00 x 0.100 4.00 x 0.100 4.00 x 0.100 4.00 x 0.100 4.00 x 0.100 4.00 x . 0.100 4.00 x 0.100 4.00 x 0.100 4.00 x 0.100 0.70 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.50 0.50 0.50 0.50 0.50 0.50 0.50 0.50 0.50 0.50 0.50 0.50 0.50 0.50 0.50 0.40 0.40 0.40 0.40 0.40 0.40 0.40 0.40 0.40 0.40 0.40 0.40 0.40 0.40 0.40 1 -57 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 POND -2 Version: 5.15 S /N: 1295160123 Page 3 Executed 04 -26 -1994 11:06:56 Unit .HYD File: RENZ2- BX.HYD Output Hydrograph: RENZ2- 00.HYD Multiplier Constant: .1 TIME Unit Multiplier Output Hydrograph (hrs) Ordinates Constant (cfs) 19.30 4.00 x 0.100 = 0.40 19.40 4.00 x 0.100 = 0.40 19.50 4.00 x 0.100 = 0.40 19.60. 3.00 x 0.100 = 0.30 19.70. 3.00 x 0.100 = 0.30 19.80 3.00 x 0.100 = 0.30 19.90 3.00 x 0.100 = 0.30 20.00 3.00 x 0.100 = 0.30 20.10 3.00 x 0.100 = 0.30 20.20 3.00 x 0.100 = 0.30 20.30 3.00 x 0.100 = 0.30 20.40 3.00 x 0.100 = 0.30 20.50 3.00 x 0.100 = 0.30 20.60 3.00 x 0.100 = 0.30 20.70 3.00 x 0.100 = 0.30 20.80 3.00 x 0.100 = 0.30 20.90 3.00 x 0.100 = 0.30 21.00 3.00 x 0.100 = 0.30 21.10 3.00 x 0.100 = 0.30 21.20 3.00 x 0.100 = 0.30 21.30 3.00 x 0.100 = 0.30 21.40 3.00 x 0.100 = 0.30 21.50 3.00 x 0.100 = 0.30 21.60 3.00 x 0.100 = 0.30 21.70 3.00. x 0.100 = 0.30 21.80 3.00 x 0.100 = 0.30 21.90 3.00 x 0.100 = 0.30 22.00 3.00 x 0.100 = 0.30 22.10 3.00 x 0.100 = 0.30 22.20 3.00 x 0.100 = 0.30 22.30 3.00 x 0.100 = 0.30 22.40 3.00 x 0.100 = 0.30 22.50 3.00 x 0.100 = 0.30 22.60 3.00 x 0.100 = 0.30 22.70 2.00 x 0.100 = 0.20 22.80 - 2.00 x 0.100 = 0.20 22.90 2.00 x 0.100 = 0.20 23.00 2.00 x 0.100 = 0.20 23.10 2.00 x 0.100 = 0.20 23.20 2.00 x 0.100 = 0.20 23.30 2.00 x 0.100 = 0.20 * * * ** Multiply Hydrograph by Constant * * * ** I -58 POND -2 Version: 5.15 S /N: 1295160123 Page 4 Executed 04 -26 -1994 11:06:56 * * * ** Multiply Hydrograph by Constant * * * ** Unit .HYD File: RENZ2- BX.HYD Output Hydrograph: RENZ2- 00.HYD Multiplier Constant: .1 TIME Unit Multiplier Output Hydrograph (hrs) Ordinates Constant (cfs) 23.40 2.00 x 0.100 = 0.20 23.50 2.00 x 0.100 = 0.20 23.60 2.00 x 0.100 = 0.20 23.70 2.00 x 0.100 = 0.20 23.80 2.00 x 0.100 = 0.20 23.90 2.00 x 0.100 = 0.20 24.00 2.00 x 0.100 = 0.20 24.10 1.00 x 0.100 = 0.10 24.20 1.00 x 0.100 = 0.10 24.30 1.00 x 0.100 = 0.10 24.40 1.00 x 0.100 = 0.10 24.50 1.00 x 0.100 = 0.10 24.60 1.00 x 0.100 = 0.10 24.70 1.00 x 0.100 = 0.10 24.80 1.00 x 0.100 = 0.10 24.90 1.00 x 0.100 = 0.10 25.00 1.00 x 0.100 = 0.10 25.10 1.00 x 0.100 = 0.10 25.20 1.00 x 0.100 = 0.10 25.30 1.00 x 0.100 = 0.10 25.40 0.00 x 0.100 = 0.00 25.50 0.00 x 0.100 = 0.00 25.60 0.00 x 0.100 = 0.00 25.70 0.00 x 0.100 = 0.00 25.80 0.00 x 0.100 = 0.00 25.90 0.00 x 0.100 = 0.00 1 -59 Location On -Site OH -Site Combined Basins 3A +3B +3C +3D +4C Renzi and Renz -2 On -Site Off -Site Composite Hydrographs The following pages present composite hydrograph calculations for Q and Q,,,,, in the following order: Q Qiou 1-t Iro ph RidN3 -50 RenzC -50 Ren3A -50 RidN3 -00 RenzC -00 Rcn3 A -00 l —Go pin N3.icaN Quick TR -55 Ver.5.45 S/N:1315460151 Executed: 08:22:53 04 -27 -1994 Ridgemont Estates North - 3rd Addition Composite Basin: 3A + 3B + 3C + 3D + 4C * NOTE: areas = 10x to increase accuracy hydrographs = 0.10x (back to original) Composite Area: Basin RidN3 RUNOFF CURVE NUMBER DATA SURFACE DESCRIPTION Impervious (roads, houses) Pervious (lawns, landscaping) Pervious (gravel @ lift sta.) AREA (acres) 26.86 99.36 2.00 CN 98'/ 61 85 ✓ COMPOSITE AREA - - -> 128.22 ✓ 69.1t/'( 69 ) I -G I Quick TR -55 Ver.5.45 S/N:1315460151 Executed: 08:54:19 04 -27 -1994 RIDN3.TCT Ridgemont Estates North - 3rd Addition Composite Basin: 3A + 3B + 3C + 3D + 4C Flow path: as per Basin 3C; L -3 R.E. North 5th to 2 +62 to culvert Note: flow time in pipe is negligible, thus excluded SHEET FLOW (Applicable to Tc only) Segment ID L -3,5th Surface description pervious Manning's roughness coeff., n 0.0300 Flow length, L (total < or = 300) ft 10.0 Two -yr 24 -hr rainfall, P2 in 1.400 Land slope, s ft /ft 0.2500 0.8 .007 * (n *L) T = hrs 0.00 = 0.00 0.5 0.4 P2 * s SHALLOW CONCENTRATED FLOW Segment ID N.slope Surface (paved or unpaved)? Unpaved Flow length, L ft 510.0 Watercourse slope, s ft /ft 0.0640 0.5 Avg.V = Csf * (s) where: Unpaved Csf = 16.1345 Paved Csf = 20.3282 T = L / (3600 *V) Tc COMPUTATIONS FOR: Basin RidN3 ft /s 4.0817 CHANNEL FLOW Segment.: ID. gutter Cross Sectional Flow Area, a sq.ft 0.84 Wetted perimeter, Pw ft 8.00 Hydraulic radius, r = a /Pw ft 0.105 Channel slope, s ft /ft 0.0070 Manning's roughness coeff., n 0.0160 T Z hrs 0.03 = 0.03 T 3 2/3 1/2 1.49 * r * s V = ft /s 1.7341 n Flow length, L ft 283 T = L / (3600 *V) hrs 0.05 = 0.05 TOTAL TIME (hrs) 0.08 -GZ 1 1 1 1 . 1 1 11 - Basin RidN3 1 1 1 1 1 1 1 Quick TR -55 Version: 5.45 S /N: 1315460151 Page 1 Return Frequency: 50 years 1r Subarea Description ▪ Subarea ▪ Description I asin RidN3 * Travel time f ** Tc & Tt are a »» Input Parameters Used to Compute Hydrograph «« Executed: 04 -27 -1994 09:32.40 Watershed file: - -> RIDN3 .MOP Hydrograph file: - -> RIDN3- AX.HYD = Iso -tiR e lox A csl Ridgemont Estates North - 3rd Addition Onsite drainage: Composite Basin RidN3 (3A +3B +3C +3D +4C) 50 -year and 100 -year storm return frequencies NOTE: Peak discharge is 10x (as per 10x RCN values) TR -55 TABULAR HYDROGRAPH METHOD Type II. Distribution (24 hr. Duration Storm) I-G3 AREA CN Tc * Tt Precip. I Runoff Ia /p (acres) (hrs) (hrs) (in) (in) input /used 128.22 „.....-69.0V 0.10-' 0.00 2.40 ... 0.38 I.37 .37 * Travel time from subarea outfall to composite watershed outfall point. ' I -- Subarea where user specified interpolation between Ia /p tables. Total area = 128.22 acres or 0.2003 sq.mi / Peak discharge = 61 cfs (6.0 IL „» Computer Modifications of Input Parameters ««< Input Values Tc * Tt (hr) (hr) 0.10 0.00 ** Rounded Values Ia /p Tc * Tt Interpolated (hr) (hr) (Yes /No) ** Yes Ia/p Messages rom subarea outfall to composite watershed outfall point. vailable in the hydrograph tables. 1 x 1 Quick TR -55 Version: 5.45 S /N: 1315460151 Page 2 Return Frequency: 50 years TR -55 TABULAR HYDROGRAPH METHOD ' Type II. Distribution (24 hr. Duration Storm) ' Executed: 04 -27 -1994 09:32:40 Watershed file: - -> RIDN3 .MOP Hydrograph file: - -> RIDN3 - AX.HYD ' Ridgemont Estates North - 3rd Addition Onsite drainage: Composite Basin RidN3 (3A +3B +3C+3D+4C) 50 -year and 100 -year storm return frequencies 1 NOTE: Peak discharge is 10x (as per 10x RCN values) »» Summary. of Subarea Times to Peak «« Peak Discharge at Time to Peak at ' Subarea Composite Outfall Composite Outfall (cfs) (hrs) ' Basin RidN3 61 12.1 Composite Watershed 61 12.1 1 1 1 1 1 1 1 1 1 1 I -G5 1 Quick TR -55 Version: 5.45 S /N: 1315460151 Page 3 Return Frequency: 50 years TR -55 TABULAR HYDROGRAPH METHOD Type II. Distribution (24 hr. Duration Storm) ' Executed: 04 -27 -1994 09:32:40 Watershed file: - -> RIDN3 .MOP Hydrograph file: - -> RIDN3 - AX.HYD Ridgemont Estates North - 3rd Addition Onsite drainage: Composite Basin RidN3 (3A +3B+3C +3D +4C) 1 50 -year and 100 -year storm return frequencies NOTE: Peak discharge is 10x (as per 10x RCN values) Composite Hydrograph Summary (cfs) Subarea 11.0 11.3 11.6 11.9 12.0 12.1 12.2 12.3 12.4 ' Description hr hr hr hr hr hr hr hr hr Basin RidN3 0 0 0 8 30 61 36 16 13 'Total (cfs) 0 0 0 8 30 61 36 16 13 1 Subarea 12.5 12.6 12.7 12.8 13.0 13.2 13.4 13.6 13.8 Description hr hr hr hr hr hr hr hr hr Basin RidN3 11 10 8 8 7 6 6 5 5 'Total (cfs) 11 10 8 8 7 6 6 5 5 1 Subarea 14.0 14.3 14.6 15.0 15.5 16.0 16.5 17.0 17.5 1 Description hr hr hr hr hr hr hr hr hr Basin RidN3 4 4 4 4 3 3 3 3 2 "Total (cfs) 4 4 4 3 3 3 3 2 1 1 Subarea 18.0 19.0 20.0 22.0 26.0 1 Description hr hr hr hr hr Basin RidN3 2 2 2 2 0 "Total (cfs) 2 2 2 2 0 Quick TR -55 Version: 5.45 S /N: 1315460151 Page 4 Return Frequency: 50 years TR -55 TABULAR HYDROGRAPH METHOD Type II. Distribution (24 hr. Duration Storm) Executed: 04 -27 -1994 09:32:40 Watershed file: - -> RIDN3 .MOP Hydrograph file: - -> RIDN3 - AX.HYD Ridgemont Estates North - 3rd Addition Onsite drainage: Composite Basin RidN3 (3A +3B +3C +3D +4C) 50 -year and 100 -year storm return frequencies NOTE: Peak discharge is 10x (as per 10x RCN values) Time Flow Time Flow (hrs) (cfs) (hrs) (cfs) 11.0 0 14.8 4 11.1 0 14.9 4 11.2 0 15.0 4 11.3 0 15.1 4 11.4 0 15.2 4 11.5 0 15.3 3 11.6 0 15.4 3 11.7 3 15.5 3 11.8 5 15.6 3 11.9 8 15.7 3 12.0 30 15.8 3 12.1 61 15.9 3 12.2 36 16.0 3 12.3 16 16.1 3 12.4 13 16.2 3 12.5 11 16.3 3 12.6 10 16.4 3 12.7 8 16.5 3 12.8 8 16.6 3 12.9 8 16.7 3 13.0 7 16.8 3 13.1 6 16.9 3 13.2 6 17.0 3 13.3 6 17.1 3 13.4 6 17.2 3 13.5 6 17.3 2 13.6 5 17.4 2 13.7 5 17.5 2 13.8 5 17.6 2 13.9 4 17.7 2 14.0 4 17.8 2 14.1 4 17.9 2 14.2 4 18.0 2 14.3 4 18.1 2 14.4 4 18.2 2 14.5 4 18.3 2 I -6G 14.6 4 18.4 2 14.7 4 18.5 2 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Quick TR -55 Version: 5.45 S /N: 1315460151 TR -55 TABULAR HYDROGRAPH METHOD Type II. Distribution (24 hr. Duration Storm) Executed: 04 -27 -1994 09:32:40 Watershed file: - -> RIDN3 .MOP Hydrograph file: - -> RIDN3- AX.HYD Page 5 Return Frequency: 50 years Ridgemont Estates North - 3rd Addition Onsite drainage: Composite Basin RidN3 (3A +3B+3C +3D +4C) 50 -year and 100 -year storm return frequencies NOTE: Peak discharge is 10x (as per 10x RCN values) Time Flow Time Flow (hrs) (cfs) (hrs) (cfs) 18.6 2 22.4 2 18.7 2 22.5 2 18.8 2 22.6 2 18.9 2 22.7 2 19.0 2 22.8 2 19.1 2 22.9 2 19.2 2 23.0 2 19.3 2 23.1 1 19.4 2 23.2 1 19.5 2 23.3 1 19.6 2 23.4 1 19.7 2 23.5 1 19.8 2 23.6 1 19.9 2 23.7 1 20.0 2 23.8 1 20.1 2 23.9 1 20.2 2 24.0 1 20.3 2 24.1 1 20.4 2 24.2 1 20.5 2 24.3 1 20.6 2 24.4 1 20.7 2 24.5 1 20.8 2 24.6 1 20.9 2 24.7 1 21.0 2 24.8 1 21.1 2 24.9 1 21.2 2 25.0 0 21.3 2 25.1 0 21.4 2 25.2 0 21.5 2 25.3 0 21.6 2 25.4 0 21.7 2 25.5 0 21.8 2 25.6 0 21.9 2 25.7 0 22.0 2 25.8 0 22.1 2 25.9 0 22.2 2 22.3 2 I -G5 1 1 1 1 1 1 1 »» Input Parameters Used to Compute Hydrograph <<« Subarea AREA CN Tc * Tt Precip. I Runoff Ia /p Description (acres) (hrs) (hrs) (in) (in) input /used 1 Basin RidN3 128.22 69.0 0.10 0.00 2.60 I 0.47 I.35 .35 1 1 1 1 1 1 1 1 Quick TR -55 Version: 5.45 S /N: 1315460151 Page 1 Return Frequency: 100 years TR -55 TABULAR HYDROGRAPH METHOD Type II. Distribution (24 hr. Duration Storm) Executed: 04 -27 -1994 09:32:40 Watershed file: - -> RIDN3 .MOP Hydrograph file: - -> RIDN3- BX.HYD = lioo-'r�, e to*. neer,sl Ridgemont Estates North - 3rd Addition Onsite drainage: Composite Basin RidN3 (3A +3B +3C +3D +4C) 50 -year and 100 -year storm return frequencies NOTE: Peak discharge is 10x (as per 10x RCN values) 1 * Travel time from subarea outfall to composite watershed outfall point. I -- Subarea where user specified interpolation between Ia /p tables. Total area = 128.22 acres or 0.2003 sq.mi Peak discharge = /07 4 »» Computer Modifications of Input Parameters ««< Input Values Rounded Values Ia /p Subarea Tc * Tt Tc * Tt Interpolated Ia /p Description (hr) (hr) (hr) (hr) (Yes /No) Messages 1 Basin RidN3 0.10 0.00 ** ** Yes * Travel time from subarea outfall to composite watershed outfall point. II ** Tc & Tt are available in the hydrograph tables. 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Quick TR -55 Version: 5.45 S /N: 1315460151 Page 2 Return Frequency: 100 years Executed: 04 -27 -1994 09:32:40 Watershed file: - -> RIDN3 .MOP Hydrograph file: - -> RIDN3 - BX.HYD Ridgemont Estates North - 3rd Addition Onsite drainage: Composite Basin RidN3 (3A +3B+3C +3D +4C) 50 -year and 100 -year storm return frequencies NOTE: Peak discharge is 10x (as per 10x RCN values) »» Summary of Subarea Times to Peak «« Peak Discharge at Time to Peak at Composite Outfall Composite Outfall (cfs) (hrs) Subarea Basin RidN3 Composite Watershed TR -55 TABULAR HYDROGRAPH METHOD Type II. Distribution (24 hr. Duration Storm) 79 12.1 79 12.1 1-70 1 1 1 1 1 1 1 1 Quick TR -55 Version: 5.45 S /N: 1315460151 Page 3 Return Frequency: 100 years Subarea 1 Description Basin RidN3 1 Total (cfs) TR -55 TABULAR HYDROGRAPH METHOD Type II. Distribution (24 hr. Duration Storm) Executed: 04 -27 -1994 09:32:40 Watershed file: - -> RIDN3 .MOP Hydrograph file: - -> RIDN3 - BX.HYD Ridgemont Estates North - 3rd Addition Onsite drainage: Composite Basin RidN3 (3A +3B +3C +3D +4C) 50 -year and 100 -year storm return frequencies NOTE: Peak discharge is 10x (as per 10x RCN values) 1 Composite Hydrograph Summary (cfs) 11.0 11.3 11.6 11.9 12.0 12.1 12.2 12.3 12.4 hr hr hr hr hr hr hr hr hr 0 0 0 11 42 79 46 20 16 0 0 0 11 42 79 46 20 16 1 Subarea 12.5 12.6 12.7 12.8 13.0 13.2 13.4 13.6 13.8 1 Description hr hr hr hr hr hr hr hr hr Basin RidN3 14 12 10 9 8 7 7 6 6 1 Total (cfs) 14 12 10 9 8 7 7 6 6 Subarea 14.0 14.3 14.6 15.0 15.5 16.0 16.5 17.0 17.5 1 Description hr hr hr hr hr hr hr hr hr Basin RidN3 5 5 5 4 4 3 3 3 3 1 Total (cfs) 5 5 5 4 4 3 3 3 3 1 Subarea 18.0 19.0 20.0 22.0 26.0 Description hr hr hr hr hr 1/ Basin RidN3 3 2 2 2 0 1 Total (cfs) 3 2 2 2 0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 it 1 1 1 Quick TR -55 Version: 5.45 S /N: 1315460151 Page 4 Return Frequency: 100 years TR -55 TABULAR HYDROGRAPH METHOD Type II. Distribution (24 hr. Duration Storm) Executed: 04 -27 -1994 09:32:40 Watershed file: - -> RIDN3 .MOP Hydrograph file: - -> RIDN3 - BX.HYD Ridgemont Estates North - 3rd Addition Onsite drainage: Composite Basin RidN3 (3A +3B +3C +3D +4C) 50 -year and 100 -year storm return frequencies NOTE: Peak discharge is 10x (as per 10x RCN values) Time Flow Time Flow (hrs) (cfs) (hrs) (cfs) 11.0 0 14.8 4 11.1 0 14.9 4 11.2 0 15.0 4 11.3 0 15.1 4 11.4 0 15.2 4 11.5 0 15.3 4 11.6 0 15.4 4 11.7 4 15.5 4 11.8 7 15.6 4 11.9 11 15.7 4 12.0 42 15.8 3 12.1 79 15.9 3 12.2 46 16.0 3 12.3 20 16.1 3 12.4 16 16.2 3 12.5 14 16.3 3 12.6 12 16.4 3 12.7 10 16.5 3 12.8 9 16.6 3 12.9 8 16.7 3 13.0 8 16.8 3 13.1 8 16.9 3 13.2 7 17.0 3 13.3 7 17.1 3 13.4 7 17.2 3 13.5 7 17.3 3 13.6 6 17.4 3 13.7 6 17.5 3 13.8 6 17.6 3 13.9 6 17.7 3 14.0 5 17.8 3 14.1 5 17.9 3 14.2 5 18.0 3 14.3 5 18.1 3 14.4 5 18.2 3 14.5 5 18.3 3 I -72 14.6 5 18.4 3 14.7 5 18.5 2 1 -23 Quick TR -55 Version: 5.45 S /N: 1315460151 Page 5 Return Frequency: 100 years TR -55 TABULAR HYDROGRAPH METHOD Type II. Distribution (24 hr. Duration Storm) Executed: 04 -27 -1994 09:32:40 Watershed file: - -> RIDN3 .MOP Hydrograph file: - -> RIDN3 - BX.HYD Ridgemont Estates North - 3rd Addition Onsite drainage: Composite Basin RidN3 (3A +38+3C +3D +4C) 50 -year and 100 -year storm return frequencies NOTE: Peak discharge is 10x (as per 10x RCN values) Time Flow Time Flow (hrs) (cfs) (hrs) (cfs) 18.6 2 22.4 2 18.7 2 22.5 2 18.8 2 22.6 2 18.9 2 22.7 2 19.0 2 22.8 2 19.1 2 22.9 2 19.2 2 23.0 2 19.3 2 23.1 1 19.4 2 23.2 1 19.5 2 23.3 1 19.6 2 23.4 1 19.7 2 23.5 1 19.8 2 23.6 1 19.9 2 23.7 1 20.0 2 23.8 1 20.1 2 23.9 1 20.2 2 24.0 1 20.3 2 24.1 1 20.4 2 24.2 1 20.5 2 24.3 1 20.6 2 24.4 1 20.7 2 24.5 1 20.8 2 24.6 1 20.9 2 24.7 1 21.0 ..2 24.8 1 21.1 2 24.9 1 21.2 2 25.0 0 21.3 2 25.1 0 21.4 2 25.2 0 21.5 2 25.3 0 21.6 2 25.4 0 21.7 2 25.5 0 21.8 2 25.6 0 21.9 2 25.7 0 22.0 2 25.8 0 22.1 2 25.9 0 22.2 2 22.3 2 1 -74 POND -2 Version: 5.15 S /N: 1295160123 Page 1 Executed 04 -27 -1994 09:43:48 * * * ** Multiply Hydrograph by Constant * * * ** Unit .HYD File: RIDN3- AX.HYD Output Hydrograph: RIDN3- 50.HYD Multiplier Constant: .1 0.„1_5ITS COMPOSIrt -`ff ci ,:t4 .I. .bti „L., TIME Unit Multiplier Output Hydrograph (hrs) Ordinates Constant (cfs) 11.00 0.00 x 0.100 = 0.00 11.10 0.00 x 0.100 = 0.00 11.20 0.00 x 0.100 = 0.00 11.30 0.00 x 0.100 = 0.00 11.40 0.00 x 0.100 = 0.00 11.50 0.00 x 0.100 = 0.00 11.60 0.00 x 0.100 = 0.00 11.70 3.00 x 0.100 = 0.30 11.80 5.00 x 0.100 = 0.50 11.90 8.00 x 0.100 = 0.80 12.00 30.00 x 0.100 = 3.00 12.10 61.00 x 0.100 = 6.10 12.20 36.00 x 0.100 = 3.60 12.30 16.00 x 0.100 = 1.60 12.40 13.00 x 0.100 = 1.30 12.50 11.00 x 0.100 = 1.10 12.60 10.00 x 0.100 = 1:00 12.70 8.00 x 0.100 = 0.80 12.80 8.00 x 0.100 = 0.80 12.90 8.00 x 0.100 = 0.80 13.00 7.00 x 0.100 = 0.70 13.10 6.00 x 0.100 = 0.60 13.20 6.00 x 0.100 = 0.60 13.30 6.00 x 0.100 = 0.60 13.40 6.00 x 0.100 = 0.60 13.50 6.00 x 0.100 = 0.60 13.60 5.00 x 0.100 = 0.50 13.70 5.00 x 0.100 = 0.50 13.80 5.00 x 0.100 = 0.50 13.90 4.00 x 0.100 = 0.40 14.00 4.00 x 0.100 = 0.40 14.10 4.00 x 0.100 = 0.40 14.20 4.00 x 0.100 = 0.40 14.30 4.00 x 0.100 = 0.40 14.40 4.00 x 0.100 = 0.40 14.50 4.00 x 0.100 = 0.40 14.60 4.00 x 0.100 = 0.40 14.70 4.00 x 0.100 = 0.40 14.80 4.00 x 0.100 = 0.40 14.90 4.00 x 0.100 = 0.40 15.00 4.00 x 0.100 = 0.40 15.10 4.00 x 0.100 = 0.40 1 -75 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 POND -2 Version: 5.15 S /N: 1295160123 Page 2 Executed 04 -27 -1994 09:43:48 * * * ** Multiply Hydrograph by Constant * * * ** Unit .HYD File: RIDN3- AX.HYD Output Hydrograph: RIDN3- 50.HYD Multiplier Constant: .1 TIME Unit Multiplier Output Hydrograph (hrs) Ordinates Constant (cfs) 15.20 4.00 x 0.100 = 0.40 15.30 3.00 x 0.100 = 0.30 15.40 3.00 x 0.100 = 0.30 15.50 3.00 x 0.100 = 0.30 15.60 3.00 x 0.100 = 0.30 15.70 3.00 x 0.100 = 0.30 15.80 3.00 x 0.100 = 0.30 15.90 3.00 x 0.100 = 0.30 16.00 3.00 x 0.100 = 0.30 16.10 3.00 x 0.100 = 0.30 16.20 3.00 x 0.100 = 0.30 16.30 3.00 x 0.100 = 0.30 16.40 3.00 x 0.100 = 0.30 16.50 3.00 x 0.100 = 0.30 16.60 3.00 x 0.100 = 0.30 16.70 3.00 x 0.100 = 0.30 16.80 3.00 x 0.100 = 0.30 16.90 3.00 x 0.100 = 0.30 17.00 3.00 x 0.100 = 0.30 17.10 3.00 x 0.100 = 0.30 17.20 3.00 x 0.100 = 0.30 17.30 2.00 x 0.100 = 0.20 17.40 2.00 x 0.100 = 0.20 17.50 2.00 x 0.100 = 0.20 17.60 2.00 x 0.100 = 0.20 17.70 2.00 x 0.100 = 0.20 17.80 2.00 x 0.100 = 0.20 17.90 2.00 x 0.100 = 0.20 18.00 2.00 x 0.100 = 0.20 18.10 2.00 x 0.100 = 0.20 18.20 2.00 x 0.100 = 0.20 18.30 2.00 x 0.100 = 0.20 18.40 2.00 x 0.100 = 0.20 18.50 2.00 x 0.100 = 0.20 18.60 2.00 x 0.100 = 0.20 18.70 2.00 x 0.100 = 0.20 18.80 2.00 x 0.100 = 0.20 18.90 2.00 x 0.100 = 0.20 19.00 2.00 x 0.100 = 0.20 19.10 2.00 x 0.100 = 0.20 19.20 2.00 x 0.100 = 0.20 1-7G POND -2 Version: 5.15 S /N: 1295160123 Page 3 Executed 04 -27 -1994 09:43:48 * * * ** Multiply Hydrograph by Constant * * * ** Unit .HYD File: RIDN3- AX.HYD Output Hydrograph: RIDN3- 50.HYD Multiplier Constant: .1 TIME Unit Multiplier Output Hydrograph (hrs) Ordinates Constant (cfs) 19.30 2.00 x 0.100 = 0.20 19.40 2.00 x 0.100 = 0.20 19.50 2.00 x 0.100 = 0.20 19.60 2.00 x 0.100 = 0.20 19.70 2.00 x 0.100 = 0.20 19.80 2.00 x 0.100 = 0.20 19.90 2.00 x 0.100 = 0.20 20.00 2.00 x 0.100 = 0.20 20.10 2.00 x 0.100 = 0.20 20.20 2.00 x 0.100 = 0.20 20.30 2.00 x 0.100 = 0.20 20.40 2.00 x 0.100 = 0.20 20.50 2.00 x 0.100 = 0.20 20.60 2.00 x 0.100 = 0.20 20.70 2.00 x 0.100 = 0.20 20.80 2.00 x 0.100 = 0.20 20.90 2.00 x 0.100 = 0.20 21.00 2.00 x 0.100 = 0.20 21.10 2.00 x 0.100 = 0.20 21.20 2.00 x 0.100 = 0.20 21.30 2.00 x 0.100 = 0.20 21.40 2.00 x 0.100 = 0.20 21.50 2.00 x 0.100 = 0.20 21.60 2.00 x 0.100 = 0.20 21.70 2.00 x 0.100 = 0.20 21.80 2.00 x 0.100 = 0.20 21.90 2.00 x 0.100 0.20 22.00 2.00 x 0.100 = 0.20 22.10 2.00 x 0.100 = 0.20 22.20 2.00 x 0.100 = 0.20 22.30 2.00 x 0.100 = 0.20 22.40 2.00 x 0.100 = 0.20 22.50 2.00 x 0.100 = 0.20 22.60 2.00 x 0.100 = 0.20 22.70 2.00 x 0.100 = 0.20 22.80 2.00 x 0.100 = 0.20 22.90 2.00 x 0.100 = 0.20 23.00 2.00 x 0.100 = 0.20 23.10 1.00 x 0.100 = 0.10 23.20 1.00 x 0.100 = 0.10 23.30 1.00 x 0.100 = 0.10 1 -77 POND -2 Version: 5.15 S /N: 1295160123 Page 4 Executed.04 -27 -1994 09:43:48 * * * ** Multiply Hydrograph by Constant * * * ** Unit .HYD File: RIDN3- AX.HYD Output Hydrograph: RIDN3- 50.HYD Multiplier Constant: .1 TIME Unit Multiplier Output Hydrograph (hrs) Ordinates Constant (cfs) 23.40 1.00 x 0.100 = 0.10 23.50 1.00 x 0:100 = 0.10 23.60 1.00 x 0.100 = 0.10 23.70 1.00 x 0.100 = 0.10 23.80 1.00 x 0.100 = 0.10 23.90 1.00 x 0.100 = 0.10 24.00 1.00 x 0.100 = 0.10 24.10 1.00 x 0.100 = 0.10 24.20 1.00 x 0.100 = 0.10 24.30 1.00 x 0.100 = 0.10 24.40 1.00 x 0.100 = 0.10 24.50 1.00 x 0.100 = 0.10 24.60 1.00 x 0.100 = 0.10 24.70 1.00 x 0.100 = 0.10 24.80 1.00 x 0.100 = 0.10 24.90 1.00 x 0.100 = 0.10 25.00 0•.00 x 0.100 = 0.00 25.10 0.00 x 0.100 = 0.00 25.20 0.00 x 0.100 = 0.00 25.30 0.00 x 0.100 = 0.00 25.40 0.00 x 0.100 = 0.00 25.50 0.00 x 0.100 = 0.00 25.60 0.00 x 0.100 = 0.00 25.70 0.00 x 0.100 = 0.00 25.80 0.00 x 0.100 = 0.00 25.90 0.00 x 0.100 = 0.00 I -78 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 POND -2 Version: 5.15 S /N: 1295160123 Page 1 Executed 04 -27 -1994 09:47:44 * * * ** Multiply Hydrograph by Constant * * * ** Unit .HYD File: RIDN3- BX.HYD Output Hydrograph: RIDN3- 00.HYD Multiplier Constant: .1 ON - SITE COMPOSITE I oo -'flc. STnRM "ACruAL AREAS TIME Unit Multiplier Output Hydrograph (hrs) Ordinates Constant (cfs) 11.00 0.00 x 0.100 = 0.00 11.10 0.00 x 0.100 = 0.00 11.20 0.00 x 0.100 = 0.00 11.30 0.00 x 0.100 = 0.00 11.40 0.00 x 0.100 = 0.00 11.50 0.00 x 0.100 = 0.00 11.60 0.00 x 0.100 = 0.00 11.70 4.00 x 0.100 = 0.40 11.80 7.00 x 0.100 = 0.70 11.90 11.00 x 0.100 = 1.10 12.00 42.00 x 0.100 = 4.20 12.10 79.00 x 0.100 = 7.90 12.20 46.00 x 0.100 = 4.60 12.30 20.00 x 0.100 = 2.00 12.40 16.00 x 0.100 = 1.60 12.50 14.00 x 0.100 = 1.40 12.60 12.00 x 0.100 = 1.20 12.70 10.00 x 0.100 = 1.00 12.80 9.00 x 0.100 = 0.90 12.90 8.00 x 0.100 = 0.80 13.00 8.00 x 0.100 = 0.80 13.10 8.00 x 0.100 = 0.80 13.20 7.00 x 0.100 = 0.70 13.30 7.00 x 0.100 = 0.70 13.40 7.00. x 0.100 = 0.70 13.50 7.00 x 0.100 = 0.70 13.60., 6.00 x 0.100 = 0.60 13.70 6.00 x 0.100 = 0.60 13.80 6.00 x 0.100 = 0.60 13.90 6.00 x 0.100 = 0.60 14.00 5.00 x 0.100 = 0.50 14.10 5.00 x 0.100. = 0.50 14.20 5.00 x 0.100 = 0.50 14.30 5.00 x 0.100 = 0.50 14.40 5.00 x 0.100 = 0.50 14.50 5.00 x 0.100 = 0.50 14.60 5.00 x 0.100 = 0.50 14.70 5.00 x 0.100 = 0.50 14.80 4.00 x 0.100 = 0.40 14.90 4.00 x 0.100 = 0.40 15.00 4.00 x 0.100 = 0.40 15.10 4.00 x 0.100 = 0.40 1 -79 POND -2 Version: 5.15 S /N: 1295160123 Page 2 Executed 04 -27 -1994 09:47:44 * * * ** Multiply Hydrograph by Constant * * * ** Unit .HYD File: ,RIDN3- BX.HYD Output Hydrograph: RIDN3- 00.HYD Multiplier Constant: 1 21 TIME Unit Multiplier Output Hydrograph (hrs) Ordinates Constant (cfs) 15.20 4.00 x 0.100 = 0.40 15.30 4.00 x 0.100 = 0.40 15.40 4.00 x 0.100 = 0.40 15.50 4.00 x 0.100 = 0.40 15.60 4.00 x 0.100 = 0.40 15.70 4.00 x' 0.100 = 0.40 15.80 3.00 x 0.100 = 0.30 15.90 3.00 x 0.100 = 0.30 16.00 3.00 x 0.100 = 0.30 16.10 3.00 x 0.100 = 0.30 16.20 3.00 x 0.100 = 0.30 16.30 3.00 x 0.100 = 0.30 16.40 3.00 x 0.100 = 0.30 16.50 3.00 x 0.100 = 0.30 16.60 3.00 x 0.100 = 0.30 16.70 3.00 x 0.100 = 0.30 16.80 3.00 x 0.100 = 0.30 16.90 3.00 x 0.100 = 0.30 17.00 3.00 x 0.100 = 0.30 17.10 3.00 x 0.100 = 0.30 17.20 3.00 x 0.100 = 0.30 17.30 3.00 x 0.100 = 0.30 17.40 3.00 x 0.100 = 0.30 17.50 3.00 x 0.100 = 0.30 17.60 3.00 x 0.100 = 0.30 17.70 3.00 x 0.100 = 0.30 17.80 3.00 x 0.100 = 0.30 17.90 3.00 x 0.100 = 0.30 18:00 3.00 x 0.100 = 0.30 18.10 3.00 x 0.100 = 0.30 18.20 3.00 x 0.100 = 0.30 18.30 3.00 x 0.100 = 0.30 18.40 3.00 x 0.100 = 0.30 18.50 2.00 x 0.100 = 0.20 18.60 2.00 x 0.100 = 0.20 18.70 - 2.00 • x 0.100 = 0.20 18.80 2.00 x 0.100 = 0.20 18.90 2.00 x 0.100 = 0.20 19.00 2.00 x 0.100 = 0.20 19.10 2.00 x 0.100 = 0.20 19.20 2.00 x 0.100 = 0.20 1 -80 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 POND -2 Version: 5.15 S /N: 1295160123 Executed 04 727 -1994 09:47:44 * * * ** Multiply Hydrograph by Constant * * * ** Unit .HYD File: RIDN3- BX.HYD Output Hydrograph: RIDN3- 00.HYD Multiplier Constant: .1 Page 3 TIME Unit Multiplier Output Hydrograph (hrs) Ordinates Constant (cfs) 19.30 2.00 x 0.100 = 0.20 19.40. 2.00 x 0.100 = 0.20 19.50 2.00 x 0.100 = 0.20 19.60 2.00 x 0.100 = 0.20 19.70 2.00 x 0.100 = 0.20 19.80 2.00 x 0.100 = 0.20 19.90 2.00 x 0.100 = 0.20 20.00 2.00 x 0.100 = 0.20 20.10 2.00 x 0.100 = 0.20 20.20 2.00 x 0.100 = 0.20 20.30 2.00 x 0.100 = 0.20 20.40 2.00 x 0.100 = 0.20 20.50 2.00 x 0.100 = 0.20 20.60 2.00, x 0.100 = 0.20 20.70 2.00 x 0.100 = 0.20 20.80 2.00 x 0.100 = 0.20 20.,90 2.00, x 0.100 = 0.20 21.00 2.00 x 0.100 = 0.20 21.10 2.00 x 0.100 = 0.20 21.20 2.00 x 0.100 = 0.20 21.30 2.00 x 0.100 = 0.20 21.40 2.00 x 0.100 = 0.20 21.50 2.00 x 0.100 = 0.20 21.60 2.00 x 0.100 = 0.20 21.70 2.00 x 0.100 = 0.20 21.80 2.00 x 0.100 = 0.20 21.90 2.00 x 0.100 = 0.20 22.00 2.00 x 0.100 = 0.20 22.10 2.00 x 0.100 = 0.20 22.20 2.00 x 0.100 = 0.20 22.30 2.00 x 0.100 = 0.20 22.40 2.00 x 0.100 = ' 0.20 22.50 2.00 x 0.100 = 0.20 22.60 2.00 x 0.100 = 0.20 22.70 2.00 x 0.100 = 0.20 22.80 2.00 x 0.100 = 0.20 22.90 2.00 x 0.100 = 0.20 23.00 2.00 x 0.100 = 0.20 23.10 1.00 x 0.100 = 0.10 23.20 1.00 x 0.100 = 0.10 23.30 1.00 x 0.100 = 0.10 1-81 POND -2 Version: 5.15 S /N: 1295160123 Page 4 Executed 04 -27 -1994 09:47:44 * * * ** Multiply Hydrograph by Constant * * * ** Unit: ;.HYD File: ,RIDN3 - BX.HYD Output Hydrograph: RIDN3- 00.HYD Multiplier Constant: .1 TIME Unit Multiplier Output Hydrograph (hrs) Ordinates Constant (cfs) 23.40 1.00 x 0.100 = 0.10 23.50 1.00 x 0.100 = 0.10 23.60 1.00 x 0.100 = 0.10 23.70 1.00 x 0.100 = 0.10 23.80 1.00 x 0.100 = 0.10 23.90 1.00 x 0.100 = 0.10 24.00 1.00 x 0.100 = 0.10 24.10 1.00 x 0.100 = 0.10 24.20 1.00 x 0.100 = 0.10 24.30 1.00 x 0.100 = 0.10 24.40 1.00 x 0.100 = 0.10 24.50 1.00 x 0.100 = 0.10 24.60 1.00 x 0.100 = 0.10 24.70 1.00 x 0.100 = 0.10 24.80 1.00 x 0.100 = 0.10 24.90 1.00 x 0.100 = 0.10 25.00 0.00 x 0.100 = 0.00 25.10 0.00 x 0.100 = 0.00 25.20 0.00 x 0.100 = 0.00 25.30 0.00 x 0.100 = 0.00 25.40 0.00 x 0.100 = 0.00 25.50 0.00 x 0.100 = 0.00 25.60 0.00 x 0.100 = 0.00 25.70 0.00 x 0.100 = 0.00 25.80 0.00 x 0.100 = 0.00 25.90 0.00 x 0.100 = 0.00 I -89 POND -2 Version: 5.15 S /N: 1295160123 Executed.04 -27 -1994 10:07:38 Data directory: *.HYD File Summary for Composite Hydrograph Time RENZ1-50 RENZ2-50 RENZC -50 (hrs) (cfs) (cfs) (Total) 11.00 11.10 11.20 11.30 11.40 11.50 11.60 11.70 11.80 11.90 12.00 12.10 12.20 12.30 12.40 12.50 12.60 12.70 12.80 12.90 13.00 13.10 13.20 13.30 13.40 13.50 13.60 13.70 13.80 13.90 14.00 14.10 14.20 14.30 14.40 14.50 14.60 14.70 14.80 14.90 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.1 0.1 0.2 0.9 3.0 1.9 0.9 0.8 0.7 0.6 0.5 0.5 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.2 0.2 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.1 0.2 0.3 1.6 5.1 7.5 5.6 3.2 2.4 2.0 1.7 1.4 1.3 1.2 1.2 1.1 1.0 1.0 1.0 0.9 0.8 0.8 0.8 0.7 0.7 0.7 0.7 0.7 0.6 0.6 0.6 0.6 0.6 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.2 0.3 0.5 2.5 8.1 / 9.4 r/ 6.5 4.0 3.1 2.6 2.2 1.9 1.7 1.6 1.6 1.5 1.4 1.4 1.4 1.2 1.1 1.1 1.1 1.0 1.0 1.0 1.0 1.0 0.9 0.9 0.9 0.8 0.8 Page 1 of 4 oFFS1'1E co/APoscre so - CA P i -63 POND -2 Version: 5.15 S /N: 1295160123 Executed 04 -27 -1994 10:07:38 Data directory: *.HYD File Summary for Composite Hydrograph Time RENZ1 -50 RENZ2 -50 RENZC -50 (hrs) (cfs) (cfs) (Total) 15.00 15.10 15.20 15.30 15.40 15.50 15.60 15.70 15.80 15.90 16.00 16.10 16.20 16.30 16.40 16.50 16.60 16.70 16.80 16.90 17.00 17.10 17.20 17.30 17.40 17.50 17.60 17.70 17.80 17.90 18.00 18.10 18.20 18.30 18.40 18.50 18.60 18.70 18.80 18.90 19.00 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.1 0.1 0.1 0.1 0.1 0.6 0.6 0.6 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.3 0.3 0.3 0.3 0.3 0.8 0.8 0.8 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.4 0.4 0.4 0.4 0.4 Page 2 of 4 1 -84 POND -2 Version: 5.15 S /N: 1295160123 Page 3 of 4 Executed 04 -27 -1994 10:07:38 Data directory: *.HYD File Summary for Composite Hydrograph Time RENZ1-50 RENZ2 -50 RENZC -50 (hrs) (cfs) (cfs) (Total) 19.10 0.1 0.3 0.4 19.20 0.1 0.3 0.4 19.30 0.1 0.3 0.4 19.40 0.1 0.3 0.4 19.50 0.1 0.3 0.4 19.60 0.1 0.3 0.4 19.70 0.1 0.3 0.4 19.80 0.1 0.3 0.4 19.90 0.1 0.3 0.4 20.00 0.1 0.3 0.4 20.10 0.1 0.3 0.4 20.20 0.1 0.3 0.4 20.30 0.1 0.3 0.4 20.40 0.1 0.3 0.4 20.50 0.1 0.3 0.4 20.60 0.1 0.3 0.4 20.70 0.1 0.3 0.4 20.80 0.1 0.3 0.4 20.90 0.1 0.3 0.4 21.00 0.1 0.3 0.4 21.10 0.1 0.3 0.4 21.20 0.1 0.3 0.4 21.30 0.1 0.3 0.4 21.40 0.1 0.3 0.4 21.50 0.1 0.3 0.4 21.60 0.1 0.3 0.4 21.70 0.1 0.3 0.4 21.80 0.1 0.3 0.4 21.90 0.1 0.3 0.4 22.00 0.1 0.3 0.4 22.10 0.1 0.3 0.4 22.20 0.1 0.3 0.4 22.30 0.1 0.3 0.4 22.40 0.1 0.3 0.4 22.50 0.1 0.3 0.4 22.60 0.1 0.3 0.4 22.70 0.1 0.2 0.3 22.80 0.1 0.2 0.3 22.90 0.1 0.2 0.3 23.00 0.1 0.2 0.3 23.10 0.1 0.2 0.3 1 -55 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 POND -2 Version: 5.15 S /N: 1295160123 Page 4 of 4 Executed 04 -27 -1994 10:28:19 Data directory: *.HYD File Summary for Composite Hydrograph Time RENZ1-50 RENZ2 -50 RENZC -50 (hrs) (cfs) (cfs) (Total) 23.20 23.30 23.40 23.50 23.60 23.70 23.80 23.90 24.00 24.10 24.20 24.30 24.40 24.50 24.60 24.70 24.80 24.90 25.00 25.10 25.20 25.30 25.40 25.50 25.60 25.70 25.80 25.90 26.00 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.2 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.0 0.0 0.0 0.0 0.0 0.0 0.0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 POND -2 Version: 5.15 S /N: 1295160123 Page 1 of 4 Executed 04 -27 -1994 10:11:28 Data directory: *.HYD File Summary for Composite Hydrograph Time RENZ1-00 RENZ2 -00 RENZC -00 (hrs) (cfs) (cfs) (Total) 11.00 11.10 11.20 11.30 11.40 11.50 11.60 11.70 11.80 11.90 12.00 12.10 12.20 12.30 12.40 12.50 12.60 12.70 12.80 12.90 13.00 1.3.10 13.20 13.30 13.40 13.50 13.60 13.70 13.80 13.90 14.00 14.10 14.20 14.30 14.40 14.50 14.60 14.70 14.80 14.90 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.1 0.3 0.4 1.8 4.4 2.7 1.2 1.0 0.9 0.8 0.7 0.6 0.6 0.6 0.6 0.5 0.5 0.5 0.5 0.4 0.4 0.4 0.4 0.4 0.4 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.2 0.3 0.5 2.4 7.3 9.9 7.2 4.1 3.0 2.4 2.0 1.7 1.6 1,4 1.4 1.3 1.2 1.1 1.1 1.1 1.0 1.0 0.9 0.9 0.9 0.8 0.8 0.8 0.7 0.7 0.7 0.7 0.7 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.3 0.6 0.9 4.2 11.7 8.4 5.1 3.9 3.2 2.7 2.7 2.2 2.0 2.0 1.8 1.7 1.6 1.6 1.5 1.4 1.4 1.3 1.3 1.3 1.1 1.1 1.1 1.0 1.0 1.0 1.0 1.0 OFF-stir: a too -` el; 1 -87 POND -2 Version: 5.15 S /N: 1295160123 Page 2 of 4 Executed 04 -27 -1994 10:11:28 Data directory: *.HYD File Summary for Composite Hydrograph Time RENZ1-00 RENZ2-00 RENZC -00 (hrs) (cfs) (cfs) (Total) 15.00 0.3 0.7 1.0 15.10 0.3 0.7 1.0 15.20 0.3 0.7 1.0 15.30 0.3 0.6 0.9 15.40 0.3 0.6 0.9 15.50 0.3 0.6 0.9 15.60 0.3 0.6 0.9 15.70 0.3 0.6 0.9 15.80 0.2 0.6 0.8 15.90 0.2 0.6 0.8 16.00 0.2 0.6 0.8 16.10 0.2 0.6 0.8 16.20 0.2 0.6 0.8 16.30 0.2 0.5 0.7 16.40 0.2 0.5 0.7 16.50 0.2 0.5 0.7 16.60 0.2 0.5 0.7 16.70 0.2 0.5 0.7 16.80 0.2 0.5 0.7 16.90 0.2 0.5 0.7 17.00 0.2 0.5 0.7 17.10 0.2 0.5 0.7 17.20 0.2 0.5 0.7 17.30 0.2 0.5 0.7 17.40 0.2 0.5 0.7 17.50 0.2 0.5 0.7 17.60 0.2 0.5 0.7 17.70 0.2 0.5 0.7 17.80 0.2 0.4 0.6 17.90 0.2 0.4 0.6 18.00 0.2 0.4 0.6 18.10 0.2 0.4 0.6 18.20 0.2 0.4 0.6 18.30 0.2 0.4 0.6 18.40 0.2 0.4 0.6 18.50 0.2 0.4 0.6 18.60 0.2 0.4 0.6 18.70 0.2 0.4 0.6 18.80 0.2 0.4 0.6 18.90 0.2 0.4 0.6 19.00 0.2 0.4 0.6 1 - c POND -2 Version: 5.15 S /N: 1295160123 Executed 04 -27 -1994 10:11:28 Data directory: *.HYD File Summary for Composite Hydrograph Time RENZ1-00 RENZ2-00 RENZC -00 (hrs) (cfs) (cfs) (Total) 19.10 19.20 19.30 19.40 19.50 19.60 19.70 19.80 19.90 20.00 20.10 20.20 20.30 20.40 20.50 20.60 20.70 20.80 20.90 21.00 21.10 21.20 , 21.30 21.40 21.50 21.60 21.70 21.80 21.90 22.00 22.10 22.20 22.30 22.40 22.50 22.60 22.70 22.80 22.90 23.00 23.10 0.2 O .2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 O .2 0.2 0.2 0.2 0.2 0.2 O .2 0.2 0.2 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.4 O .4 0.4 O .4 0.4 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.2 0.2 0.2 0.2 0.2 0.6 0.6 0.6 0.6 0.6 0.5 0.5 0.5 0.5 0,5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.3 0.3 0.3 0.3 0.3 Page 3 of 4 I -55 1 1 1 1 1 1 1 1 1 1 1 1 POND -2 Version: 5.15 S /N: 1295160123 Page 4 of 4 Executed 04 -27 -1994 10:32:37 Data directory: *.HYD File Summary for Composite Hydrograph Time RENZ1-00 RENZ2-00 RENZC -00 (hrs) (cfs) (cfs) (Total) 23.20 23.30 23.40 23.50 23.60 23.70 23.80 23.90 24.00 24.10 24.20 24.30 24.40 24.50 24.60 24.70 24.80 24.90 25.00 25.10 25.20 25.30 25.40 25.50 25.60 25.70 25.80 25.90 26.00 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.2 0.1 0.1 0.1 0.1 0.1 0,1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.0 0.0 0.0 0.0 0.0 0.0 0.0 ( -5o POND - Version: 5.15 S /N: 1295160123 Executed 04 -27 -1994 10:37 :20 Data directory: *.HYD File Summary for Composite Hydrograph Time RIDN3 -50 RENZC -50 REN3A -50 (hrs) (cfs) (cfs) (Total) 11.00 11.10 11.20 11.30 11.40 11.50 11.60 11.70 11.80 11.90 12.00 12.10 12.20 12.30 12.40 12.50 12.60 12.70 12.80 12.90 13.00 13.10 13.20 13.30 13.40 13.50 13.60 13.70 13.80 13.90 14.00 14.10 14.20 14.30 14.40 14.50 14.60 14.70 14.80 14.90 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.3 0.5 0.8 3.0 6.1 3.6 1.6 1.3 1.1 1.0 0.8 0.8 0.8 0.7 0.6 0.6 0.6 0.6 0.6 0.5 0.5 0.5 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.2 0.3 0.5 2.5 8.1 9.4 6.5 4.0 3.1 2.6 2.2 1.9 1.7 1.6 1.6 1.5 1.4 1.4 1.4 1.2 1.1 1.1 1.1 1.0 1.0 1.0 1.0 1.0 0.9 0.9 0.9 0.8 0.8 0.0 0.0 0.0 0.0 0.0 0.0 0.0 • 0.5 0.8 1.3 5.5 14.2 v 13.0 8.1 5.3 4.2 3.6 3.0 2.7 2.5 2.3 2.2 2.1 2.0 2.0 2.0 1.7 1.6 1.6 1.5 1.4 1.4 1.4 1.4 1.4 1.3 1.3 1.3 1.2 1.2 Page 1 of 4 ON -SITE OFF BITE Ct rr. PO I T Fop. Rio k-1G 'HR° H ?obit) ?, 1 -91 1 POND -2 Version: 5.15 S /N: 1295160123 Page 2 of 4 1 Executed 04 -27 -1994 10:37:20 ' Data directory: *.HYD File Summary for Composite Hydrograph I Time RIDN3 -50 RENZC -50 REN3A -50 (hrs) (cfs) (cfs) (Total) 1 15.00 0.4 0.8 1.2 15.10 0.4 0.8 1.2 15.20 0.4 0.8 1.2 15.30 0.3 0.7 1.0 15.40 0.3 0.7 1.0 15.50 0.3 0.7 1.0 15.60 0.3 0.7 1.0 I 15.70 0.3 0.7 1.0 15.80 0.3 0.7 1.0 15.90 0.3 0.7 1.0 16.00 0.3 0.7 1.0 I 16.10 0.3 0.7 1.0 16.20 0.3 0.7 1.0 16.30 0.3 0.6 0.9 1 16.40 0.3 0.6 0.9 16.50 0.3 0.6 0.9 16.60 0.3 0.6 0.9 ' 16.70 0.3 0.6 0.9 16.80 0.3 0.6 0.9 16.90 0.3 0.6 0.9 17.00 0.3 0.6 0.9 I 17.10 0.3 0.6 0.9 17.20 0.3 0.6 0.9 17.30 0.2 0.6 0.8 I 17.40 0.2 0.6 0.8 17.50 0.2 0.6 0.8 17.60 0.2 0.6 0.8 ' 17.70 0.2 0.6 0.8 17.80 0.2 0.6 0.8 17.90 0.2 0.6 0.8 18.00 0.2 0.6 0.8 I 18.10 0.2 0.6 0.8 18.20 0.2 0.6 0.8 18.30 0.2 0.6 0.8 1 18.40 0.2 0.6 0.8 18.50 0.2 0.6 0.8 18.60 0.2 0.4 0.6 18.70 0.2 0.4 0.6 ' 18.80 0.2 0.4 0.6 18.90 0.2 0.4 0.6 19.00 0.2 0.4 0.6 1 1 1 I -92 1 1 i 1 1 1 1 1 1 1 1 0 1 1 1 1 1 1 POND -2 Version: 5.15 S /N: 1295160123 Page 3 of 4 Executed 04 -27 -1994 10:37:20 Data directory: *.HYD File Summary for Composite Hydrograph Time RIDN3 -50 RENZC -50 REN3A -50 (hrs) (cfs) (cfs) (Total) 19.10 19.20 19.30 19.40 19.50 19.60 19.70 19.80 19.90 20.00 20.10 20.20 20.30 20.40 20.50 20.60 20.70 20.80 20.90 21.00 21.10 21.20 21.30 21.40 21.50 21.60 21.70 21.80 21.90 22.00 22.10 22.20 22.30 22.40 22.50 22.60 22.70 22.80 22.90 23.00 23.10 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.1 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.3 0.3 0.3 0.3 0.3 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.5 0.5 0.5 0.5 0.4 I -9.3 POND -2 Version: 5.15 S /N: 1295160123 Page 4 of 4 Executed 04 -27 -1994 10:37:20 Data directory: *.HYD File Summary for Composite Hydrograph Time RIDN3 -50 RENZC -50 REN3A -50 (hrs) (cfs) (cfs) (Total) 23.20 23.30 23.40 23.50 23.60 23.70 23.80 23.90 24.00 24.10 24.20 24.30 24.40 24.50 24.60 24.70 24.80 24.90 25.00 25.10 25.20 25.30 25.40 25.50 25.60 25.70 25.80 25.90 26.00 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.2 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.3 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.1 0.1 0.1 0.1 0.0 0.0 0.0 0.0 0.0 0.0 0.0 I-94 POND -2 Version: 5.15 S /N: 1295160123 Executed 04 -27- 1994 10:46:35 Data directory: *.HYD File Summary for Composite Hydrograph Time RIDN3 -00 RENZC -00 REN3A -00 (hrs) (cfs) (cfs) (Total) 11.00 11.10 11.20 11.30 11.40 11.50 11.60 11.70 11.80 11.90 12.00 12.10 12.20 12.30 12.40 12.50 12.60 12.70 12.80 12.90 13.00 13.10 13.20 13.30 13.40 13.50 13.60 13.70 13.80 13.90 14.00 14.10 14.20 14.30 14.40 14.50 14.60 14.70 14.80 14.90 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.4 0.7 1.1 4.2 7.9 4.6 2.0 1.6 1.4 1.2 1.0 0.9 0.8 0.8 0.8 0.7 0.7 0.7 0.7 0.6 0.6 0.6 0.6 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.4 0.4 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.3 0.6 0.9 4.2 11.7 12.6 8.4 5.1 3.9 3.2 2.7 2.3 2.2 2.0 2.0 1.8 1.7 1.6 1.6 1.5 1.4 1.4 1.3 1.3 1.3 1.1 1.1 1.1 1.0 1.0 1.0 1.0 1.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.7 1.3 2.0 8.4 kpec 3a. 0 17.2 10.4 6.7 5.3 4.4 3.7 3.2 3.0 2.8 2.8 2.5 2.4 2.3 2.3 2.1 2.0 2.0 1.9 1.8 1.8 1.6 1.6 1.6 1.5 1.5 1.5 1.4 1.4 Page 1 of 4 oki-`5rrE o FF -SITE CompoS IT 1 -95 I- 9G POND -2 Version: 5.15 S /N: 1295160123 Page 2 of 4 Executed 04 -27 -1994 10:46:35 Data directory: *.HYD File Summary for Composite Hydrograph Time RIDN3-00 RENZC -00 REN3A -00 (hrs) (cfs) (cfs) (Total) 15.00 15.10 15.20 15.30 15.40 15.50 15.60 15.70 15.80 15.90 16.00 16.10 16.20 16.30 16.40 16.50 16.60 16.70 16.80 16.90 17.00 17.10 17.20 17.30 17.40 17.50 17.60 17.70 17.80 17.90 18.00 18.10 18.20 18.30 18.40 18.50 18.60 18.70 18.80 18.90 19.00 0.4 0.4 0.4 0.4 0.4. 0.4 0.4 0.4 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.2 0.2 0.2 0.2 0.2 0.2 1.0 1.0 1.0 0.9 0.9 0.9 0.9 0.9 0.8 0.8 0.8 0.8 0.8 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 1.4 1.4 1.4 1.3 1.3 1.3 1.3 1.3 1.1 1.1 1.1 1.1 1.1 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.8 0.8 0.8 0.8 0.8 0.8 POND -2 Version: 5.15 S /N: 1295160123 Page 3 of 4 Executed 04 -27 -1994 10:46:35 Data directory: *.HYD File Summary for Composite Hydrograph Time RIDN3 -00 RENZC -00 REN3A -00 (hrs) (cfs) (cfs) (Total) 19.10 0.2 0.6 0.8 19.20 0.2 0.6 0.8 19.30 0.2 0.6 0.8 19.40 0.2 0.6 0.8 19.50 0.2 0.6 0.8 19.60 0.2 0.5 0.7 19.70 0.2 0.5 0.7 19.80 0.2 0.5 0.7 19.90 0.2 0.5 0.7 20.00 0.2 0.5 0.7 20.10 0.2 0.5 0.7 20.20 .0.2 0.5 0.7 20.30 0.2 0.5 0.7 20.40 0.2 0.5 0.7 20.50 0.2 0.5 0.7 20.60 0.2 0.5 0.7 20.70 0.2 0.5 0.7 20.80 0.2 0.5 0.7 20.90 0.2 0.5 0.7 21.00 0.2 0.5 0.7 21.10 0.2 0.4 0.6 21.20 0.2 0.4 0.6 21.30 0.2 0.4 0.6 21.40 0.2 0.4 0.6 21.50 0.2 0.4 0.6 21.60 0.2 0.4 0.6 21.70 0.2 0.4 0.6 21.80 0.2 0.4 0.G 21.90 0.2 0.4 0.6 22.00 0.2 0.4 0.6 22.10 0.2 0.4 0.6 22.20 0.2 0.4 0.6 22.30 0.2 0.4 0.6 22.40 0.2 0.4 0.6 22.50 0.2 0.4 0.6 22.60 0.2 0.4 0.6 22.70 0.2 0.3 0.5 22.80 0.2 0.3 0.5 22.90 0.2 0.3 0.5 23.00 0.2 0.3 0.5 23.10 0.1 0.3 0.4 I -97 POND -2 Version: 5.15 S /N: 1295160123 Page 4 of 4 Executed 04 -27 -1994 10:46:35 Data directory: *.HYD File•Summary for Composite Hydrograph Time RIDN3 -00 RENZC -00 REN3A -00 (hrs) (cfs) (cfs) (Total) 23.20 23.30 23.40 23.50 23.60 23.70 23.80 23.90 24.00 24.10 24.20 24.30 24.40 24.50 24.60 24.70 24.80 24.90 25.00 25.10 25.20 25.30 25.40 25.50 25.60 25.70 25.80 25.90 26.00 0.1 0.3 0.4 0.1 0.3 0.4 0.1 0.3 0.4 0.1 0.3 0.4 0.1 0.3 0.4 0.1 0.3 0.4 0.1 0.3 0.4 0.1 0.3 0.4 0.1 0.2 0.3 0.1 0.1 0.2 0.1 0.1 0.2 0.1 0.1 0.2 0.1 0.1 0.2 0.1 0.1 0.2 0.1 0.1 0.2 0.1 0.1 0.2 0.1 0.1 0.2 0.1 0.1 0.2 0.0 0.1 0.1 0.0 0.1 0.1 0.0 0.1 0.1 0.0 0.1 0.1 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 1 -98 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Level -Pool Reservoir Routing and Drainage Pond 3A Volume Calculations 1 POND -2 Version: 5.15 S /N: 1295160123 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 2,020.00 2,020.50 2,021.00 2,021.50 2,022.00 2,022.50 2,023.00 2,023.50 2,024.00 Ridgemont Estates North - 3rd Addition Drainage Pond 3A, located in Utility Lot "B" Pond floor area = 12,700 sq.ft. at elev. 2020.0 3:1 side slopes CALCULATED 04 -27 -1994 11:05:42 DISK FILE: REN3A .VOL Planimeter scale: 1 inch = 50 ft. Elevation Planimeter Area Al +A2 +sgr(A1 *A2) Volume (ft) (sq.in.) ( sq.ft) (sq.ft) (cubic -ft) 5.08 12,700 ' 1 - 0 0 5.48 13,700 39,591 6,598 5.89 14,725 v 42,628 7,105 6.30 15,750 45,704 7,617 6.71 16,775 ✓ 48,779 8,130 7.13 17,825 a' 51,892 8,649 7.56 18,900' 55,080 9,180 8.01 20,025V/ 58,379 9,730 8.48 21,200 61,829 10,305 1 - f 00 Volume Sum (cubic -ft) 0 6,598 13,703 21,320 29,450 38,099 47,279. 57,009 67,314 * Incremental volume computed by the Conic Method for Reservoir Volumes. 1 POND -2 Version: 5.15 S /N: 1295160123 ' EXECUTED: 04 -27 -1994 11:25:44 *************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** * * * Ridgemont Estates North - 3rd Addition * * Drainage Pond 3A * 12,700 sq.ft. @ elev. 2020.0, 3:1 slopes * * Drywell Grates Elev. 2020.5 * * *************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** 1 1 1 Rating Table file: REN3A .PND - - -- INITIAL CONDITIONS--- - Elevation = 2020.00 ft Outflow = 0.00 cfs 1 Storage = 0 cu -ft 1 1 1 1 1 1 1 1 1 1 1 1 Inflow Hydrograph: REN3A- 50.HYD ON-Site + OFFS n€ ^a+ -trS £i °FM INTERMEDIATE ROUTING GIVEN POND DATA COMPUTATIONS ELEVATION OUTFLOW STORAGE 2S /t 2S /t + 0 (ft) (cfs) (cu -ft) (cfs) (cfs) Time increment (t) = 0.100 hrs. Page 1 2020.00 0.0 0 0.0 0.0 2020.50 6.0 6,598 36.7 42.7 2021.00 6.0 13,703 76.1 82.1 2021.50 6.0 21,320 118.4 124.4 2022.00 6.0 29,450 163.6 169.6 2022.50 6.0 38,099 211.7 217.7 2023.00 6.0 47,279 262.7 268.7 2023.50 6.0 57,009 316.7 322.7 2024.00 6.0 67,314 374.0 380.0 1 -ion 1 POND -2 Version: 5.15 S /N: 1295160123 II EXECUTED: 04 -27 -1994 11:25:44 Pond File: REN3A .PND ' Inflow Hydrograph: REN3A- 50.HYD Outflow Hydrograph: REN3AOUT.HYD 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 INFLOW HYDROGRAPH ROUTING COMPUTATIONS TIME INFLOW I1 +I2 2S /t - 0 2S /t + 0 OUTFLOW ELEVATION (hrs) (cfs) (cfs) (cfs) (cfs) (cfs) (ft) 11.000 11.100 11.200 11.300 11.400 11.500 11.600 11.700 11.800 11.900 12.000 12.100 12.200 12.300 12.400 12.500 12.600 12.700 12.800 12.900 13.000 13.100 13.200 13.300 13.400 13.500 13.600 13.700 13.800 13.900 14.000 14.100 14.200 14.300 14.400 14.500 14.600 14.700 14.800 14.900 15.000 15.100 15.200 15.300 15.400 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.50 0.80 1.30 5.50 14.20 13.00 8.10 5.30 4.20 3.60 3.00 2.70 2.50 2.30 2.20 2.10 2.00 2.00 2.00 1.70 1.60 1.60 1.50 1.40 1.40 1.40 1.40 1.40 1.30 1.30 1.30 1.20 1.20 1.20 1.20 1.20 1.00 1.00 0.0 0.0 0.0 0.0 0.0 0.0 0.5 1.3 2.1 6.8 19.7 27.2 21.1 13.4 9.5 7.8 6.6 5.7 5.2 4.8 4.5 4.3 4.1 4.0 4.0 3.7 3.3 3.2 3.1 2.9 2.8 2.8 2.8 2.8 2.7 2.6 2.6 2.5 2.4 2.4 2.4 2.4 2.2 2.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.4 1.2 2.4 6.6 18.9 34.1 43.2 44.6 42.1 37.9 32.5 27.4 23.5 20.3 17.8 15.9 14.4 13.2 12.4 11.5 10.7 10.0 9.4 8.8 8.4 8.0 7.8 7.6 7.4 7.2 7.0 6.9 6.6 6.5 6.4 6.3 6.1 5.8 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.5 1.7 3.3 9.2 26.3 46.1 55.2 56.6 54.1 49.9 44.5 38.2 32.6 28.3 24.8 22.1 20.0 18.4 17.2 16.1 14.8 13.9 13.1 12.3 11.6 11.2 10.8 10.6 10.3 10.0 9.8 9.5 9.3. 9.0 8.9 8.8 8.5 8.1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.07 0.23 0.46 1.29 3.70 6.00 6.00 6.00 6.00 6.00 6.00 5.37 4.59 3.98 3.49 3.11 2.81 2.59 2.42 2.26 2.09 1.95 1.84 1.73 1.64 1.57 1.52 1.49 1.45 1.41 1.38 1.34 1.30 1.27 1.25 1.24 1.20 1.14 Page 2 I - lot 2020.00 2020.00 2020.00 2020.00 2020.00 2020.00 2020.00 2020.01 2020.02 2020.04 2020.11 2020.31 2020.54 2020.66 2020.68 2020.64 2020.59 2020.52 2020.45 2020.38 2020.33 2020.29 2020.26 2020.23 2020.22 2020.20 2020.19 2020.17 2020.16 2020.15 2020.14 2020.14 2020.13 2020.13 2020.12 2020.12 2020.12 2020.11 2020.11 2020.11 2020.11 2020.10 2020.10 2020.10 2020.10 1 POND -2 Version: 5.15 S /N: 1295160123 "EXECUTED: 04 -27 -1994 11:25:44 Pond File: REN3A .PND ' Inflow Hydrograph: REN3A- 50.HYD Outflow Hydrograph: REN3AOUT.HYD INFLOW HYDROGRAPH:. ROUTING COMPUTATIONS TIME INFLOW I1+I2 2S /t - 0 2S /t + 0 OUTFLOW ELEVATION (hrs) (cfs) (cfs) (cfs) (cfs) (cfs) • (ft) 15.500 1.00 2.0 15.600 1.00 2.0 15.700 1.00 2.0 15.800 1.00 2.0 15.900 1.00 2.0 16.000 1.00 2.0 16.100 1.00 2.0 16.200 1.00 2.0 16.300 0.90 1.9 16.400 0.90 1.8 16.500 0.90 1.8 16.600 0.90 1.8 16.700 0.90 1.8 16.800 0.90 1.8 16.900 0.90 1.8 17.000 0.90 1.8 17.100 0.90 1.8 17.200 0.90 1.8 17.300 0.80 1.7 17.400 0.80 1.6 17.500 0.80 1.6 17.600 0.80 1.6 17.700 0.80 1.6 17.800 0.80 1.6 17.900 0.80 1.6 18.000 0.80 1.6 ' 18.100 0.80 1.6 18.200 0.80 1.6 18.300 0.80 1.6 I 18.400 0.80 1.6 18.500 0.80 1.6 18.600 0.60 1.4 18.700 0.60 1.2 1 18.800 0.60 1.2 18.900 0.60 1.2 19.000 0.60 1.2 I 19.100 0.60 1.2 19.200 0.60 1.2 19.300 0.60 1.2 19.400 0.60 1.2 I 19.500 0.60 1.2 19.600 0.60 1.2 19.700 0.60 1.2 ' 19.800 0.60 1.2 19.900 0.60 1.2 20.000 0.60 1.2 1 5.6 5.5 5.4 5.3 5.2 5.2 5.2 5.2 5.1 4.9 4.8 4.8 4.7 4.7 4.7 4.6 4.6 4.6 4.5 4.4 4.3 4.3 4.2 4.2 4.2 4.1 4.1 4.1 4.1 4.1 4.1 3.9 3.7 3.5 3.4 3.3 3.2 3.2 3.2 3.1 3.1 3.1 3.1 3.1 3.1 3.1 7.8 7.6 7.5 7.4 7.3 7.2 7.2 7.2 7.1 6.9 6.7 6.6 6.6 6.5 6.5 6.5 6.4 6.4 6.3 6.1 6.0 5.9 5.9 5.8 5.8 5.8 5.7 5.7 5.7 5.7 5.7 5.5 5.1 4.9 4:7 4.6 4.5 4.4 4.4 4.4 4.3 4.3 4.3 4.3 4.3 4.3 1.10 1.07 1.05 1.04 1.03 1.02 1.01 1.01 0.99 0.97 0.95 0.93 0.92 0.92 0.91 0.91 0.91 0.90 0.89 0.86 0.85 0.83 0.82 0.82 0.81 0.81 0.81 0.80 0.80 0.80 0.80 0.77 0.72 0.69 0.66 0.65 0.63 0.62 0.62 0.61 0.61 0.61 0.60 0.60 0.60 0.60 Page 3 1 2020.09 2020.09 2020.09 2020.09 2020.09 2020.08 2020.08 2020.08 2020.08 2020.08 2020.08 2020.08 2020.08 2020.08 2020.08 2020.08 2020.08 2020.08 2020.07 2020.07 2020.07 2020.07 2020.07 2020.07 2020:07 2020.07 2020.07 2020.07 2020.07 2020.07 2020.07 2020.06 2020.06 2020.06 2020.06 2020.05 2020.05 2020.05 2020.05 2020.05 2020.05 2020.05 2020.05 2020.05 2020.05 2020.05 1 POND -2 Version: 5.15 S /N: 1295160123 ' EXECUTED: 04 -27 -1994 11:25:44 Pond File: REN3A .PND I Inflow Hydrograph: REN3A- 50.HYD Outflow Hydrograph: REN3AOUT.HYD 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 INFLOW HYDROGRAPH ROUTING COMPUTATIONS TIME INFLOW I1 +I2 2S /t - 0 2S /t + 0 OUTFLOW ELEVATION (hrs) (cfs) (cfs) (cfs) (cfs) (cfs) (ft) 20.100 20.200 20.300 20.400 20.500 20.600 20.700 20.800 20.900 21.000 21.100 21.200 21.300 21.400 21.500 21.600 21.700 21.800 21.900 22.000 22.100 22.200 22.300 22.400 22.500 22.600 22.700 22.800 22.900 23.000 23.100 23.200 23.300 23.400 23.500 23.600 23.700 23.800 23.900 24.000 24.100 24.200 24.300 24.400 24.500 24.600 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.50 0.50 0.50 0.50 0.40 0.40 0.40 0.40 0.40 0.40 0.40 0.40 0.40 0.30 0.20 0.20 0.20 0.20 0.20 0.20 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.1 1.0 1.0 1.0 0.9 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.7 0.5 0.4 0.4 0.4 0.4 0.4 3.1 3.1 3.1 3.1 3.1 3.1 3.1 3.1 3.1 3.1 3.1 3.1 3.1 3.1 3.1 3.1 3.1 3.1 3.1 3.1 3.1 3.1 3.1 3.1 3.1 3.1 3.0 2.9 2.8 2.7 2.6 2.4 2.3 2.3 2.2 2.2 2.1 2.1 2.1 2.0 1.8 1.6 1.4 1.3 1.2 1.2 4.3 4.3 4.3 4.3 4.3 4.3 4.3 4.3 4.3 4.3 4.3 4.3 4.3 4.3 4.3 4.3 4.3 4.3 4.3 4.3 4.3 4.3 4.3 4.3 4.3 4.3 4.2 4.0 3.9 3.8 3.6 3.4 3.2 3.1 3.1 3.0 3.0 2.9 2.9 2.8 2.5 2.2 2.0 1.8 1.7 1.6 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.59 0.56 0.54 0.53 0.51 0.48 0.46 0.44 0.43 0.42 0.41 0.41 0.41 0.39 0.35 0.31 0.28 0.26 0.24 0.23 Page 4 1 -1 2020.05 2020.05 2020.05 2020.05 2020.05 2020.05 2020.05 2020.05 2020.05 2020.05 2020.05 2020.05 2020.05 2020.05 2020.05 2020.05 2020.05 2020.05 2020.05 2020.05 2020.05 2020.05 2020.05 2020.05 2020.05 2020.05 2020.05 2020.05 2020.05 2020.04 2020.04 2020.04 2020.04 2020.04 2020.04 2020.04 2020.03 2020.03 2020.03 2020.03 2020.03 2020.03 2020.02 2020.02 2020.02 2020.02 POND -2 Version: 5.15 S /N: 1295160123 Page 5 ' EXECUTED: 04 -27 -1994 11:25:44 Pond File: REN3A .PND II Inflow Hydrograph: REN3A- 50.HYD Outflow Hydrograph: REN3AOUT.HYD ' INFLOW HYDROGRAPH ROUTING COMPUTATIONS TIME INFLOW I1 +I2 2S /t - 0 2S /t + 0 OUTFLOW ELEVATION (hrs) (cfs) (cfs) (cfs) (cfs) (cfs) (ft) I 24.700 0.20 0.4 1.1 1.6 0.22 2020.02 24.800 0.20 0.4 1.1 1.5 0.22 2020.02 I 24.900 0.20 0.4 1.1 1.5 0.21 2020.02 25.000 0.10 0.3 1.0 1.4 0.19 2020.02 25.100 0.10 0.2 0.9 1.2 0.17 2020.01 25.200 0.10 0.2 0.8 1.1 0.15 2020.01 ' 25.300 0.10 0.2 0.7 1.0 0.13 2020.01 25.400 0.00 0.1 0.6 0.8 0.11 2020.01 25.500 0.00 0.0 0.4 0.6 0.08 2020.01 Il 25.600 0.00 0.0 0.3 0.4 0.06 2020.00 25.700 0.00 0.0 0.2 0.3 0.04 2020.00 25.800 0.00 0.0 0.2 0.2 0.03 2020.00 ' 25.900 0.00 0.0 0.1 0.2 0.02 2020.00 26.000 0.00 0.0 0.1 0.1 0.02 2020.00 1 1 1 i 1 1 .1 1 -105 POND -2 Version: 5.15 S /N: 1295160123 Page 6 EXECUTED: 04 -27 -1994 11:25:44 * * * * * * * * * * * * * * * * ** SUMMARY OF ROUTING COMPUTATIONS * * * * * * * * * * * * * * * * ** Pond File: REN3A .PND Inflow Hydrograph: REN3A- 50.HYD Outflow Hydrograph: REN3AOUT.HYD Starting Pond W.S. Elevation = .2020.00 ft * * * ** Summary of Peak Outflow and Peak Elevation * * * ** Peak Inflow = 14.20 cfs Peak Outflow = 6.00 cfs Peak Elevation = 2020.68 ft 020a0.5 * * * ** Summary of Approximate Peak Storage * * * ** Initial Storage = 0 cu -ft Peak Storage From Storm = 9,106 cu -ft Total Storage in Pond = 9,106 cu -ft (-106 1 1 1 1 1 1 POND -2 Version: 5.15 S /N: 1295160123 Page 7 Pond File: REN3A .PND Inflow Hydrograph: REN3A- 50.HYD Outflow Hydrograph: REN3AOUT.HYD Peak Inflow = 14.20 cfs Peak Outflow = 6.00 cfs Peak Elevation = 2020.68 ft Flow (cfs) 0.0 1.5 3.0 4.5 6.0 7.5 9.0 10.5 12.0 13.5 15.0 16.5 I I I I I 1 1 1 �- 11 11.5 _ x x 1111.6 - x x* 1 11.7 - x * x 11.8 - x * x'* 1111.9 - x * x * 12.0 - x * x 11.2.1 - x x 12.2 - x x 12.3 - x x * 112.4 - * x * x 12.5 - * x * x 2.6 - * x * x 1112.7 * x * x 1 2.8- * x * x 1[2.9 - * x * x 13.0 - * x * x 1[3.1 - * x * x 11 1.3.2 - * x * x 1 13.3 - * x * x 1[3.4 - * x * x 13.5 - * x * x 1[3.6 - * x * x 13.7 - * x * * EXECUTED: 04 -27 -1994 11:25:44 1-107 1 *x 13.8 - * x * x 13.9 - *x *x 1 14.0 - *x TIME (hrs) 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 * File: REN3A- 50.HYD Qmax = 14.2 cfs x File: REN3AOUT.HYD Qmax = 6.0 cfs 1 1 POND -2 Version: 5.15 S /N: 1295160123 ' EXECUTED: 04 -27 -1994 11:36:59 **************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** * * * Ridgemont Estates North - 3rd Addition * * Drainage Pond 3A * * 12,700 sq.ft. @ elev. 2020.0, 3:1 slopes * ' * Drywell Grates Elev. 2020.5 * * * **************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** Inflow Hydrograph: REN3A- 00.HYD Rating Table file: REN3A .PND - - -- INITIAL CONDITIONS--- - Elevation = 2020.00 ft Outflow = 0.00 cfs Storage = 0 cu -ft A �..-;.VTE +-o FF -SI Tc co,aP a.riC 1 `(EAl_ STVIV4 INTERMEDIATE ROUTING GIVEN POND DATA COMPUTATIONS Page 1 ELEVATION OUTFLOW STORAGE 2S /t 2S /t + 0 (ft) (cfs) (cu -ft) (cfs) (cfs) 2020.00 0.0 0 0.0 0.0 2020.50 6.0 6,598 36.7 42.7 2021.00 6.0 13,703 76.1 82.1 2021.50 6.0 21,320 118.4 124.4 2022.00 6.0 29,450 163.6 169.6 2022.50 6.0 38,099 211.7 217.7 2023.00 6.0 47,279 262.7 268.7 2023.50 6.0 57,009 316.7 322.7 2024.00 6.0 67,314 374.0 380.0 Time increment (t) = 0.100 hrs. 1 -109 1 POND -2 Version: 5.15 S /N: 1295160123 'EXECUTED: 04 -27 -1994 11:36:59 Pond File: REN3A .PND Inflow Hydrograph: REN3A- 00.HYD utflow Hydrograph: REN3AOUT.HYD 1 INFLOW HYDROGRAPH ROUTING COMPUTATIONS . TIME INFLOW I1 +I2 2S /t - 0 2S /t + 0 OUTFLOW ELEVATION (hrs) (cfs) (cfs) (cfs) (cfs) (cfs) (ft) 11.000 0.00 11.100 0.00 0.0 11.200 0.00 0.0 11.300 0.00 0.0 11.400 0.00 0.0 11.500 0.00 0.0 11.600 0.00 0.0 11.700 0.70 0.7 11.800 1.30 2.0 11.900 2.00 3.3 12.000 8.40 10.4 12.100 19.60 28.0 12.200 17.20 36.8 12.300 10.40 27.6 12.400 6.70 17.1 12.500 5.30 12.0 12.600 4.40 9.7 12.700 3.70 8.1 12.800 3.20 6.9 12.900 3.00 6.2 13.000 2.80 5.8 13.100 2.80 5.6 13.200 2.50 5.3 13.300 2.40 4.9 13.400 2.30 4.7 13.500 2.30 4.6 13.600 2.10 4.4 13.700 2.00 4.1 13.800 2.00 4.0 13.900 1.90 3.9 14.000 1.80 3.7 14.100 1.80 3.6 14.200 1.60 3.4 14.300 1.60 3.2 14.400 1.60 3.2 14.500 1.50 3.1 14.600 1.50 3.0 14.700 1.50 3.0 14.800 1.40 2.9 14.900 1.40 2.8 15.000 1.40 2.8 15.100 1.40 2.8 15.200 1.40 2.8 15.300 1.30 2.7 15.400 1.30 2.6 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.5 1.8 3.7 10.1 27.4 52.2 67.8 72.9 72.9 70.6 66.7 61.6 55.8 49.6 43.2 36.5 29.7 24.8 21.1 18.3 16.1 14.5 13.2 12.1 11.3 10.6 9.9 9.4 9.0 8.6 8.4 8.1 7.8 7.6 7.5 7.4 7.3 7.1 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.7 2.5 5.1 14.1 38.1 64.2 79.8 84.9 84.9 82.6 78.7 73.6 67.8 61.6 55.2 48.5 41.4 34.4 29.4 25.5 22.4 20.1 18.4 16.9 15.7 14.7 13.8 13.1 12.5 12.0 11.6 11.3 10.9 10.6 10.4 10.3 10.1 9.9 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.10 0.35 0.72 1.98 5.36 6.00 6.00 6.00 6.00 6.00 6.00 6.00 6.00 6.00 6.00 6.00 5.82 4.84 4.13 3.59 3.15 2.83 2.58 2.38 2.21 2.07 1.94 1.84 1.76 1.69 1.63 1.58 1.53 1.49 1.47 1.45 1.42 1.39 Page 2 2020.00 2020.00 2020.00 2020.00 2020.00 2020.00 2020.00 2020.01 2020.03 2020.06 2020.16 2020.45 2020.77 2020.97 2021.03 2021.03 2021.01 2020.96 2020.89 2020.82 2020.74 2020.66 2020.57 2020.49 2020.40 2020.34 2020.30 2020.26 2020.24 2020.22 2020.20 2020.18 2020.17 2020.16 2020.15 2020.15 2020.14 2020.14 2020.13 2020.13 2020.12 2020.12 2020.12 2020.12 2020.12 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 POND -2 Version: 5.15 S /N: 1295160123 Page 3 EXECUTED: 04 -27 -1994 11:36:59 Pond File: REN3A .PND Inflow Hydrograph: REN3A- 00.HYD Outflow Hydrograph: REN3AOUT.HYD INFLOW HYDROGRAPH ROUTING COMPUTATIONS TIME INFLOW I1+I2 2S /t - 0 2S /t + 0 OUTFLOW ELEVATION' (hrs) (cfs) (cfs) (cfs) (cfs) (cfs) (ft) 15.500 1.30 2. 15.600 1.30 2 . 6 15.700 1.,30 2. 15.800 1.,10 ' 2. 15.900 1.10 2. 16.000 1.10 2 . 2 16.100 1.10 2 . 2 16.200 1.10 2. 16.300 1.00 2 . 1 16.400 1.00 2.0 16.500 1.00 2.0 16.600 1.00 2 . 0 16.700 1.00 2.0 16.800 1.00 2. 16.900 1.00 2. 17.000 1.00 2 . 0 17.100 1.00 2.0 17.200 1.00 2 . 0 17.300 1.00 2. 17.400 1.00 2 . 0 17.500 1.00 2 . 0 17.600 1.00 2. 17.700 1.00 2.0 17.800 0.90 1.9 1 -7.900 0.90 1.8 18.000 0.90 1.8 18.100 0.90 1.8 18.200 0.90 1.8 18.300 0.90 1.8 18.400 0.90 1.8 18.500 0.80 1.7 18.600 0.80 1.6 18.700 0.80 1.6 18.800, 0.80 1.6 18.900 0.80 1.6 19.000 0.80 ..1.6 19.100 0:80 .1.6 19.200 0.80 1.6 19.300 0.80 1.6 19.400 0.80 1.6 19.500 0.80 1.6 19.600 .0.70 1.5 19.700 0.70 1.4 19.800 0.70 1.4 19.900 0.70 1.4 20.000 0.70 1.4 7.0 6.9 6.8 6.6 6.3 6.1 6.0 5.9 5.7 5.6 5.4 5.3 5.3 5.2 5.2 5.2 5.2 5.1 5.1 5.1 5.1 5.1 5.1 5.0 4.9 4.8 4.8 4.7 4.7 4.7 4.6 4.4 4.3 4.3 4.2 4.2 4.2 4.1 4.1 4.1 4.1 4.0 3.9 3.8 3.7 3.7 9.7 9.6 9.5 9.2 8.8 8.5 8.3 8.2 8.0 7.7 7.6 7.4 7.3 7.3 7.2 7.2 7.2 7.2 7.1 7.1 7.1 7.1 7.1 7.0 6.8 6.7 6.6 6.6 6.5 6.5 6.4 6.2 6.0 5.9 5.9 5.8 5.8 5.8 5.7 5.7 5.7 5.6 5.4 5.3 5.2 5.1 1.36 2020.11 1.34 2020.11 1.33 2020.11 1.30 2020.11 1.24 2020.10 1.20 2020.10 1.17 2020.10 1.15 2020.10 1.12 2020.09 1.09 2020.09 1.06 2020.09 1.05 2020.09 1.03 2020.09 1.02 2020.09 1.02 2020.08 1.01 2020.08 1.01 2020.08 1.01 2020.08 1.00 2020.08 1.00 2020.08 1.00 2020.08 1.00 2020.08 1.00 2020.08 0.99 2020.08 0.96 2020.08 0.94 2020.08 0.93 2020.08 0.92 2020.08 0.92 2020.08 0.91 2020.08 0.89 2020.07 0.87 2020.07 0.85 2020.07 0.84 2020.07 0.83 2020.07 0.82 2020.07 0.81 2020.07 0.81 2020.07 0.81 2020.07 0.80 2020.07 0.80 2020.07 0.79 2020.07 0.76 2020.06 0.75 2020.06 0.73 2020.06 0.72 2020.06 1 ' POND -2 Version: 5.15 S /N: 1295160123 Page 4 EXECUTED: 04 -27 -1994 11:36:59 Pond File: REN3A .PND ' Inflow Hydrograph: REN3A- 00.HYD Outflow Hydrograph: REN3AOUT.HYD II INFLOW HYDROGRAPH ROUTING COMPUTATIONS TIME INFLOW'' I1 +I2 2S /t - 0 2S /t + 0 OUTFLOW ELEVATION (hrs) (cfs) (cfs) (cfs) (cfs) (cfs) (ft) 20.100 0.70 1.4 20.200 0.70 1.4 20.300 0.70 1.4 20.400 0.70" 1.4- 20.500 0.70 1.4 20.600 0.70 1.4 20.700 0.70 ' 1.4' 20.800 0.70 1.4 20.900 0.70 1.4 21.000 0.70 1.4 21.100 0.60 1.3 21.200 0.60 1.2 21.300 0.60 1.2 21.400 0.60 1.2 21.500 0.60 1.2 1 21.600 0.60 1.2 21.700 0.60 1.2 21.800 0.60 1.2 21.900 0.60 1.2 22.000 0.60 .1.2 22.100 0.60 • 1.2 22.200 0.60 1.2 ' 22.300 0.60 1.2 22.400 0.60 1.2 22.500 0.60 1.2 22.600 0.60 1.2 ' 22.700 0.50 1.1 22.800 0.50. 1.0 22.900 0.50 1.0 ' 23.000 0.50 1.0 23.100 0.40 0.9 23.200 0.40 0.8 ' 23.300,. 0.40 0.8 23.400 •0.40 0.8 23.500 0.40 - 0.8 23.600 0..4 0 ,0.8 ' 23.700 0.40. ,0.8 23.800 ; 0.40 0.8 23.900 0.40 0.8 ' 24.000 0.30 0.7 24.100 0.20 0.5 24.200 0.20 0.4 24.300 0.20 0.4 ' 24.400 0.20 0.4 24.500 0.20 0.4 24.600 0.20 0.4 1 3.7 3.6 3.6 3.6 3.6 3.6 3.6 3.6 3.6 3.6 3.5 3.4 3.3 3.2 3.2 3.2 3.1 3.1 3.1 3.1 3.1 3.1 3.1 3.1 3.1 3.1 3.0 2.9 2.8 2.7 2.6 2.4 2.3 2.3 2.2 2.2 2.1 2.1 2.1 2.0 1.8 1.6 1.4 1.3 1.2 1.2 5.1 5.1 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 4.9 4.7 4.6 4.5 4.4 4.4 4.4 4.3 4.3 4.3 4.3 4.3 4.3 4.3 4.3 4.3 4.2 4.0 3.9 3.8 3.6 3.4 3.2 3.1 3.1 3.0 3.0 2.9 2.9 2.8 2.5 2.2 2.0 1.8 1.7 1.6 0.72 0.71 0.71 0.71 0.70 0.70 0.70 0.70 0.70 0.70 0.69 0.66 0.64 0.63 0.62 0.62 0.61 0.61 0.61 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.59 0.56 0.54 0.53 0.51 0.48 0.46 0.44 0.43 0.42 0.42 0.41 0.41 0.39 0.35 0.31 0.28 0.26 0.24 0.23 2020.06 2020.06 2020.06 2020.06 2020.06 2020.06 2020.06 2020.06 2020.06 2020.06 2020.06 2020.06 2020.05 2020.05 2020.05 2020.05 2020.05 2020.05 2020.05 2020.05 2020.05 2020.05 2020.05 2020.05 2020.05 2020.05 2020.05 2020.05 2020.05 2020.04 2020.04 2020.04 2020.04 2020.04 2020.04 2020.04 2020.03 2020.03 2020.03 2020.03 2020.03 2020.03 2020.02 2020.02 2020.02 2020.02 1 POND -2 Version: 5.15 S /N: 1295160123 "EXECUTED: 04 -27 -1994 11:36:59 Pond File: REN3A .PND Inflow Hydrograph:. REN3A- 00.HYD "Outflow Hydrograph: REN3AOUT.HYD INFLOW HYDROGRAPH ROUTING COMPUTATIONS 1 1 1 1 1 1 1 1 1 1 TIME .INFLOW I1 +I2 2S /t - 0 2S /t + 0 OUTFLOW ELEVATION (hrs) (cfs) (cfs) (cfs) (cfs) (cfs) (ft) 24.700 0.20 24.800 0.20 24.900 0.20 25.000 0.10 25.100 0.10 25.200 0.10 25.300 0.10 25.400 0.00 25.500 0.00 25.600 0.00 25.700 0.00 25.800 0.00 25.900 0.00 26.000 0.00 0.4 0.4 0.4 0.3 0.2 0.2 0.2 0.1 0.0 0.0 0.0 0.0 0.0 0.0 1.1 1.1 1.1 1.0 0.9 0.8 0.7 0.6 0.4 0.3 0.2 0.2 0.1 0.1 1.6 1.5 1.5 1.4 1.2 1.1 1.0 0.8 0.6 0.4 0.3 0.2 0.2 0.1 0.22 0.22 0.21 0.19 0.17 0.15 0.13 0.11 0.08 0.06 0.04 0.03 0.02 0.02 Page 5 1 -113 2020.02 2020.02 2020.02 2020.02 2020.01 2020.01 2020.01 2020.01 2020.01 2020.00 2020.00 2020.00 2020.00 2020.00 1 POND -2 Version: 5.15 S /N: 1295160123 Page 6 ' EXECUTED: 04 -27 -1994 11:36:59 * * * * * * * * * * * * * * * * ** SUMMARY OF ROUTING COMPUTATIONS * * * * * * * * * * * * * * * * ** Pond File: REN3A .PND Inflow Hydrograph: REN3A- 00.HYD Outflow Hydrograph: REN3AOUT.HYD Starting Pond W.S. Elevation = 2020.00 ft * * * ** Summary of Peak Outflow and Peak Elevation * * * ** Peak Inflow = 19.60 cfs Peak Outflow = 6.00 cfs Peak Elevation = 20227-03 ft 174 * * * ** Summary of Approximate Peak Storage * * * ** Initial Storage = 0 cu -ft Peak Storage From Storm = 14,200 cu -ft Total Storage in Pond = 14,200 cu -ft 1 -114 1 1 1 1 1 • POND -2 Version: 5.15 S /N: 1295160123 Page 7 Pond File: REN3A .PND Inflow Hydrograph: REN3A- 00.HYD Outflow Hydrograph: REN3AOUT.HYD Peak Inflow = 19.60 cfs Peak Outflow = 6.00 cfs Peak Elevation 2021.03 ft EXECUTED: 04 -27 -1994 11:36:59 Flow (cfs) ' 0.0 2.0 4.0 6.0 8.0 10.0 12.0 14.0 16.0 18.0 20.0 22.0 1 1 1 I I I I I I '- 11.7 - x * x 11.8 - x * x * ' 11.9 - x * x * 12.0 - x * x * '12.1 - x * x * 12.2 - x * x * 12.3 - x * * 11 12.4 - x x 12.5 - * x * x 1112.6 - * x * x 12.7 - * x * x 1112.8 - * x * x 11 12.9 - * x * x 11 13.0 - * x * x 1113.1 - * x * x 13.2 - * x * x 1113.3 - * x * x 13.4 - * x * x 1113.5 - * x * x 1113.6 - * x TIME (hrs) I * File: REN3A- 00.HYD Qmax = 19.6 cfs x File: REN3AOUT.HYD Qmax = 6.0 cfs 1 -115 A large detention pond, referred to as Drainage Pond 3A, will be constructed in the northern portion of Block 1 of Ridgeniont Estates North - 3rd Addition, within a separate parcel referred to as "Utility Lot B ". This pond shall receive stormwater runoff from the land area described as Basins 3A through 3D, Basin 4C, and off -site basins Renz -1 & Renz -2. As shown on die "208 Pond Section Detail" on the drainage map, Pond 3A is to be built to minimum 24" depth, with 3:1 (I V) slopes on all sides, with a floor area of 12,700 sq.ft. at elevation 2020.0 and six double - barrel drywells. These parameters were used in the reservoir routing computations, which,yielded the following results: 50 -year storm: peak storage volume = 9,106 cubic feet, water surface max. elevation 2020.68 100 -year storm: peak storage volwne = 14,200 cubic feet, water surface max. elevation 2021.03 Spokane County requires the rim of the pond to be high enough to contain the 100 -year water surface elevation, or at least one foot above the 50 -year elevation, whichever is higher. In this case, the 50 -year level plus one foot is higher, thus the Pond 3A riot must be 2021.68, minimum. At 24" minimwn depth (as per the detail), the rim will be at or above elevation 2022.0. To store the calculated 9,106 cubic foot volume from a 50 -year storm, with 6 c.fs. outflow, the maximum water elevation in the pond is 2020.68, or about 8" above the level floor of the pond. For this drainage pond with 3:1 side slopes, the pond volume at any depth can be calculated from the area and perimeter of the pond floor, with two components: the volume directly above the floor area plus the volume above the 3:I side slopes. Volume is calculated at 0.5 ft. depth for "208" treaunent and at 0.68 ft. depth for storage, as follows: At 0.5 ft. depth: Pond Volume = (0.5 ft. depth x pond floor Area) + (1/2 x 0.5 x 1.5 x floor Perimeter @ 3:1) =0.5 A +0.375 P3:1. At 0.68 ft. depth: Pond Volume = (0.68 ft. depth x pond floor Area) + (1/2 x 0.68 x 2.04 x floor Perimeter @ 3: I) ..... = 0.68A +0.69P3 DRAINAGE POND 3A VOLUME CALCULATIONS Pond Floor 0.68 ft 2.04 feet I -11G DRAINAGE POND 3A VOLUME CALCULATIONS - CONTINUED DRAINAGE POND 3A: Pond Floor Area, A = 12,700 sq. ft. (planimeter measurement; see sketch on next page) Pond Floor Perimeter, P = 640 LF Total Volume at 6" depth = 0.5 A + 0.375 PI] =0.5 ( 12,700 )+0.375 ( 640 ) = 6,350 + 240 = 6_590 cu. ft. The total "208" volume required for Basins 3A + 3B + 3C + 3D + 4C (from Summary Table 1) =515 + 299 + 216 + 0 + 263 = 1,293 cubic feet. ✓ Therefore, Drainage Pond 3A is more than adequate for "208" treatment of stormwater runoff from these five basins, with the drywcll grates set 6" above the pond floor. Note: "208" treatment is not required for runoff from the existing developed land in Basins Renz - and Renz -2. Volume at 0.68' depth = 0.68 A + 0.69 P3.1 = 0.68 ( 12,700) + 0.69 ( 640 ) = 8,636 + 444 = 9:080 cu. ft. The total maximum volume to store with 6.0 c.f.s. outflow is 9,100 cubic feet (see routing computation). Therefore, Drainage Pond 3A can handle the calculated volwne at a depth of about 0.7 ft. (Note : difference in volume calculation via planimeter /conic method for routing, and via the method above is only about 0.3 %, which confines the accuracy of the reservoir volumes used in the routing computations). NOTE: At a pending depth of 24 ", which is the minimum construction depth of the pond as shown Oft the "208" Pond Section Detail, the pond volume is about 29,450 cubic feet, which is over 3 tines the calculated maximum storage volume required for the 50 -year storm, and about double the volume generated by the 100 -year storm. 1-117 DRAINAGE POND 3A Scale: 1" = 50' inn EXISTING PONDS - OFFSITE The north half of Renz Drive west of the high point at Station 2 +62.09 drains to the "208" pond in Lot 1, Block 5 of Ridgemont Estates North - 2nd Addition ( "Pond 5 "), on the east side of Sonora Street. This pond was sized to take drainage from the area within the basin boundary line shown on the drainage map for the 3rd Addition, including the asphalt roadway and the house and driveway on Lot I, Block 1 of the 3rd Addition. This basin boundary is also shown on the drainage plan map for the 2nd Addition. Similarly, the south half of Renz Drive west of the high point at Station 2 +62.09 drains to the approved "208" pond in Lot 1, Block 6 of Ridgemont Estates North - 2nd Addition ( "Pond 6 "), at the intersection of Renz Drive and Sonora Street. This pond was sized to take drainage from the area within the basin boundary line shown on the drainage map for the 3rd Addition, including the asphalt roadway and the house and driveway on Lot I, Block 3 of the 3rd Addition. This basin boundary is also shown on the drainage plan map for the 2nd Addition. Conclusion: Since the arca to the west ofthe basin boundary line (which runs through the high point Station 2 +62:09 of Renz Drive) is already meeting the County's requirements for runoff treatment, that small portion of Ridgemont Estates North - 3rd Addition has been excluded from the drainage calculations for this plat. For further infomnation, refer to the Drainage Report and plan maps for Ridgemont Estates North - 2nd Addition. I -118 I Known Parameters: NOTES: Retention Pond 3A: Time to Empty Total Time to Drain is the sum of the previous intervals. ait 6 c#3 : ale 6 00 T6 5/Jr' .b I J Ti^+�- {o i1.9 t 60 c 302.E r5 D 381 cF /Ar 7 s ia -s 6k- 1. Assumed Outflow Rate through ground = 0.36 "/hour = 0.03 ft. /hour 2. Peak Storage from 50 -year storm = 9,106 cu. ft. 3. Peak Elevation in Pond = 2020.68 4. Pond Floor Elevation = 2020.0 5. Six Double -Barrel Drywclls with grates set at 2020.5 Revised Contour Total Interval Outflow Hours to Total Contour Area, Pond Vol, Volume, via soil, Drain Time to Elevation Sq. Ft. . Cu. Ft. Cu. Ft. cfs Interval Drain, Hr 2020.68 14,000± 9,106 2020.50 13,700 6,598 2,508 6.115 0.11 0.11 2020.00 12,700 0 6,598 0.110 16.66 16.77 Interval Volume and Time is the difference between the previous elevation's data and the current elevation's data in the table. For example, the volume and lime recorded in the row for Elevation 2020.0 is for the interval from 2020.5 to 2020.0. The outflow for the 2020.0 row is the average of the outflow at 2020.0 (0.106) and at 2020.5 (0.114). The outflow at elevation 2020.50, where the drywell grates are, takes the grates into account. (070 Flit- /` E Z � = 38/' h`l'�r 04:,‘ a00)-0,5 cal cs � `L w 5 � - p r ro 5 dreps dow•_ #o c20dd.0,S @ 7 yne. -= /9'. Lrs 14 9 krs ' 6 ∎ 593 c 0 1 �1 �1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Channel Ilow is calculated for the following: 1. "Existing Ditch from South of Plat" This analysis considers the flow from offsite basin "Renz -1" in the existing ditch which runs in a northerly direction from the culvert outlet near the westerly property comer of Lots 16 & 17, Block 1 of the original "Ridgemont Estates" lo the SE end of Lot 3 of Ridgemont Estates North - 5th Addition. The flow in this ditch conies from the area defined as basin Renz -1, with a 50 -year peak flow of 6.55 c.fs. ( see the section tided "Oflsite Basin Data" for the Q50 calculation). 2_ "Ditch Entering Plat from 5th Addition" This analysis concerns the Clow which continues north from the "energy dissipator" at the SE end of Lot 3 of Ridgemont Estates North - 5th Addition, in the existing ditch, and enters the 3rd Addition. At the energy dissipator, flows approach from two directions: "Benz -1" comes from the south as described above, and "Benz -2" flows downslope from the east in an existing 15" pipe The pipe flow passes through the energy dissipator, then spills into the ditch. The combined flows from Renz-1 and Renz -2 then enter the 3rd Addition plat in the existing ditch. Since the 50 -year peaks from these two basins are almost concurrent, we will assume they are, for a combined Q50 of 6.55+15.37 = 21.92 cfs 3. 'Ditch Extension to Culvert" As the combined Renz -1 and Renz -2 ditch flow enters 3rd Addition, it begins to pick up runoff from on -site basin 3D. The ditch flow will be directed via the proposed ditch extension to the culvert under Renz Drive. The ditch extension will take the combined Q5u of the offsite basins, plus the Qho of 1.45 cfs from on -site Basin 3D, for a total of 23.37 cfs (assuming concurrent peaks, although they're not) 4. "Culvert under Renz Drive to Pond 3A" Channel Flow Analyses This culvert takes the flow in the ditch extension, adds flow from Basins 3.13 & 3C, which include the south half of Renz Drive, plus flow from Basin 3A, including the north half of Renz Drive. The total flow is 23.37 cfs (ditch) + 238 cfs (Basin 38) + 1.47 cfs (Basin 3C) + 3.15 cfs (Basin 3A), for a total peak (assumed concurrent) of 30.77 c.c.s. 5. "Ditch from Radco Drivo" This analysis considers the runoff from Basin 4C of Ridgemont Estates North - 4th Addition, and assumes all of it flows in a ditch from Station 6+50 Radco Drive to Drainage Pond 3A. t - -/ Worksheet Name: Ridgemont North 3rd Comment: °Rent -1 ": ex. ditch to energy dissipator (Front so'r1NorlH15 PLAT) Solve For Depth Given Input Data: Left Side Slope Right Side Slope Manning's n Channel Slope Discharge Computed Results: Depth Velocity Flow Area Flow Top Width Wetted Perimeter Critical Depth Critical Slope Froude'Number Triangular Channel Analysis & Design Open Channel - Uniform flow 3.00:1 (H:V) 3.00:1 (H:V) 0.030 0.0700 ft /ft 6.55 cfs —r FKort P_E,N'E- 0.62 ft > DGPTH of CX DITCH = 1 . 5 FT 5.77 fps 1.14 sf 3.69 ft 3.89 ft 0.78 ft 0.0192 ft /ft 1.83 (flow is Supercritical) Open Channel Flow Module, Version 3.21 (c) 1990 Haestad Methods, Inc. * 37 Brookside Rd * Waterbury, Ct 06708 I -121 Given Input Data: Left Side Slope Right Side Slope Manning's n Channel Slope Discharge Computed Results: Depth Velocity Flow Area Flow Top Width Wetted Perimeter Critical Depth Critical Slope Froude Number Triangular Channel Analysis & Design Open Channel - Uniform flow Worksheet Name: Ridgemont North 3rd Comment: "Renz -l" + "Renz -2 ": ex. ditch from 5th Add. Solve For Depth 3.00:1 (H:V) 3.00:1 (H:V) 0.030 0.1170 ft /ft = oC = = I1.7 ° ro 21.92 cfs z ge m z.1 r r_e,J a a Q so 0.88 ft — Dt?rH of EXC. DITCH = 1.5 FT. 9.46 fps 2.32 sf 5.27 ft 5.56 ft 1.27 ft' 0.0164 ft /ft 2.51 (flow is Supercritical) Open Channel Flow Module, Version 3.21 (c) 1990 Haestad Methods, Inc. * 37 Brookside Rd * Waterbury, Ct 06708 1 -122 Triangular Channel Analysis & Design Open Channel - Uniform flow Worksheet Name: Ridgemont North 3rd Comment: Renzl+Renz2 +3D: ditch extension to culvert Solve For Depth Given Input Data: Left Side Slope 3.00:1 (H:V) Right Side Slope 3.00:1 (H:V) Manning's n 0.030 ,0 -zo G Channel Slo e 0•.0460 ft ft = = 4' G �fO P / 30 %0 Discharge 23.37 cfs 2Cn t t2SU.i aD 4 Computed Results: Assam, C Cu Cu =C .T FCAAS Depth 1.07 ft -s Dr of Pc >F °soy: untR ,� .0 '_- Velocity 6.77 fps Flow Area 3.45 sf Flow Top Width 6.44 ft Wetted Perimeter 6.78 ft Critical Depth 1.30 ft Critical Slope 0.0162 ft /ft Froude Number 1.63 (flow is Supercritical) Open Channel Flow Module, Version 3.21 (c) 1990 Haestad Methods, Inc. * 37 Brookside Rd * Waterbury, Ct 06708 I -123 Circular Channel Analysis & Design Solved with Manning's Equation Worksheet Name: Ridgemont North 3rd Comment: Culvert under Renz Drive to Pond 3A Solve For Full Flow Capacity Given Input Data: D Diameter Slope Manning's n Discharge Computed Full Full Results: Flow Capacity Flow Depth Velocity Flow Area Critical Depth Critical Slope Percent Full Full Capacity QMAX @.94D Froude Number 0.95 -2.oa-4. I Open Channel - Uniform flow 2.25 ft L- 0.0100 ft /ft v 0.012 33.55 cfs -->> mAx : = 30.'71 cTs 33. 2. 8. 3. 1. 0. 100. 33. 36. 55 cfs 25 ft 44 fps 98 sf 98 ft 0090 ft /ft 00 % 55 cfs 09 cfs FULL 3 ouS Open Channel Flow Module, Version 3.21 (c) 1990 Haestad Methods, Inc. * 37 Brookside Rd * Waterbury, 1 -124 ,? 5s4t a Ok-r $L ,EL0a, . , 9c�- 34 7 � - C1 ( a2) 0.(3 Ct 06708 11 r r r 1 9 1 1 1 1 1 1 9 1 Given Input Data: Left Side Slope Right Side Slope Manning's n Channel Slope Discharge Computed Results: Depth Velocity Flow Area Flow Top Width Wetted Perimeter Critical Depth Critical Slope Froude Number Triangular Channel Analysis & Design . Open Channel - Uniform flow Worksheet Name: Ridgemont North 4th Comment: Ditch: Basin 4C, Radco Drive to Pond 3A Solve For Depth 3.00:1 (H:V) 3.00:1 (H:V) 0.030 0.0100 ft /ft 1.63 cfs 0.53 f t DITC-H 7° SC MIN , 1 DEPT AS PER PLAN 1.96 fps 0.83 se 3.16 ft 3.33 ft 0.45 ft 0.0232 ft /ft 0.67 (flow is Subcritical) I-11S Open Channel Flow Module, Version 3.21 (c) 1990 Haestad Methods,•Inc. * 37 Brookside Rd * Waterbury, Ct 06708 Q/P = 1.3 cfs/LF max. Q = 1.3 x 4.7 = 6.1 cfs BAS` ) r p� 1/ / -Co Qio = 3.15 cfs to the concrete inlet to the culvert to Drainage Pond 3A at the low point, Station 5 +50, left side of Renz Drive. BASIN 3B +3C: Refer to Page 4 -1 and Figure 14 of "Guidelines for Stormwater Management" Sump condition/Weir formula: Q = CPH '< Q = maximum rate of flow accepted by the grate C.am .b+ — C =3.0 / P =perimeter of grate = 2(1.7) 2(1.52 6.4', - 1.7' =4.7' H = max_ depth of flow = 6" cur -+-P' depression = 7" = 0.58 it max. :. Grate is OK CAPACITIES OF CURB OPENING INLETS Qio of Basin 3A = 3.15 cfs; 6.1cfs>3.15cfs (Note: 2nd grate to be located at station 5 +56.7, directly over culvert) Q10 = 2.78 + 1.47 = 4.25 cfs to the 10 LF curb opening to the culvert entrance at the low point, Station 5 +50, right side of Renz Drive. Refer to Figure 17 of "Guidelines for Stormwater Management" H = 0.28 ft. h = 0.5 H/h = 0.28/0.5 = 0.56 ft. /ft. Q/L = 0.45 cfs/LF © Q 10 = 4.25 cfs, L = 9.5 feet Construct 10 ft. wide curb opening from Station 5 +45 to 5 +55, Right side of Renz Drive. 1-12G 5 ifa j coc C r%aA__ jock +5 at lc t 4'r 5 \ H = la l o. o.z.77 ))�o. . 0.56 t / for -0 -9' CA) = 3.7 efs 77 oat Terrain:x ROAD TYPE: STOPPING SIGHT DISTANCE CALCULATIONS Date: 23- Dec -93 CREST VERTICAL CURVE Review # 1 ReviewerChristenson Project Project name: Ridgemont Estates North 3rd Road name: Renz Drive PVI stat 250 Length of vertical curve pr 100 Design Speed: 30 Min. Stopping Sight Distanc 200 Entering slope (G1, %): Exiting Slope (G2, %): IG2 -G11= A= Check S >L: L1= 2S- (1329/A) • L1 = - 229.86 note: use min curve length = 0. Required minimum curve leng 0 Check S<L: - Curve provided is Adequate L2 = A(S* *2)/1329 vcurv2.1 /Aug93 Urban /Suburban Public x Local Access Arterial Collector Secondary Major L2 = 63.5064 SPOKANE COUNTY ENGINEERS Flat (General land slope 0% to 8 %) Rolling (General land slope >8% to 15 %) Mountains (General land slope >15 %) Private Extension to 8 or fewer lots Tract "X" Semi -rur 1 -1 27 SPOKANE COUNTY ENGINEERS STOPPING SIGHT DISTANCE CALCULATIONS Date: 23- Dec -93 SAG VERTICAL CURVE Terrain:x ROAD TYPE: Urban /Suburban Pub1iC x Local Access Arterial Collector Secondary Major Review # 1 ReviewerChristenson Project Project name: Ridgemont Estates North 3rd Flat (General land slope 0% to 8 %) Rolling (General land slope >8% to 15 %) f Mountains (General land slope >15 %) Private Extension to 8 or fewer lots Tract "X" Semi -rur Road name: Renz Drive PVI stat 550 Length of vertical curve pr 100 Design Speed: 30 Min. Stopping Sight Distanc 200 Entering slope (G1, %): -0.8 Exiting Slope (G2, %): 0.8 102 -011= A= 1.6 Check S >L: L1 = 28 - ((400+3.5S) /A) L1 = -287.5 note: use min curve length = 0. Required minimum curve leng 0 Check S<L: Curve provided is Adequate L2 = A(S**2)/(400+3.5S) L2 = 58.1818 I -IZS CREST VERTICAL CURVE Project Terrain:x ROAD TYPE: SPOKANE COUNTY ENGINEERS STOPPING SIGHT DISTANCE CALCULATIONS Date: 23- Dec -93 Review # 1 ReviewerChristenson Project name: Ridgemont Estates North 3rd Flat (General land slope 0% to 8 %) Rolling (General land slope >8% to 150) f Mountains (General land slope >15 %) Urban /Suburban Public x Local Access Arterial Collector Secondary Major Private Extension to 8 or fewer lots Tract "X" Semi -rur Road name: Renz Drive PVI stat 975 Length of vertical curve pr 150 Design Speed: 30 Min. Stopping Sight Distanc 200 Entering slope (G1, %): 0.8 Exiting Slope (G2, %): -1.71 102 -G11= A= 2.51 Check S >L: L1= 2S- (1329/A) • L1 = - 129.48 note: use min curve length = 0. Required minimum curve leng 0 Check S<L: Curve provided is Adequate L2 = A(S* *2)/1329 L2 = 75.5455 1 -129 (loins sheet 75) �r a _: . D • rC ,� 11 Ii� NSa 1 0 o —• i;1XJ;�1 .1 a. n1 , me .;;^ ; }•.'.: m 1 74 Map symbol Fab Fa83 FaC3 GgA GgB GrB • r:. • Suit name DsC. Dragoon stony silt loam, 0 to 30 percent slopes. DsD Dragoon stony silt loam, 30 to 55 per- cent Slopes. DvD Dragoon very rocky complex, 20 to 55 percent slopes. EkB Eloika silt loans, 0 to 20 percent slopes. EIC Eloika very stony silt loamy 0 to 30 per- cent JImpt . El D Eloika very stony silt loam, 30 to 55 percent slides. Ent Eau.le t, silt Iu:Om. Freeman silt loafs, 5 to 20 percent elopes. Freeman silt loam, 5 to 20 percent slupea, severely eroded. Freeman silt lu :um, 21./ to 30 percent slopes, severely eroded. Freak Water ma rah. GaC3 Garfield silty clay loan, 0 to 30 percent slopes, severely eroded. Garrison gravelly loam, 0 to 5 percent slopes. Garrison gravelly loam, 5 to 211 percent slopes. Gene Garrison vety gravelly loam, U to 8 percent slopes. Garrison very stony luuto, 0 to 20 percent nlipCS. , GpA • Clenrose silt loam, 0 to 5 percent slopes. GpB Clcuro a silt Lunt, 5 to' 2U percent slopes. GpC Glcuruss silt loam, 20 to 30 percent slopes. GpD Glcmvse silt leant, 30 Lo 55 percent slopes. . • SOIL SURVEY Description of soil and ai to Similar to Dragoon silt loam, 0 to 30 percent slopes, except that the surfuee layer is stony Dragoon part similar to Dragoon silt Iuam, 0 to 3U pvreeut alOpeS, except that - depth to bed- rock ranges from 1U to 20 inches. (tuck uttt- crop included in this complex. Medium-textured, well - drained auil farmed from glacial till cottaini a large moonlit of vol- canic ash in the surface layer; underlain by gravel at depth of 30 to GU ilchca; occupies undulating, uturtinelike tupograplly. Similar to Etoika silt lusts, U to 2U percent dupes, except that thcy arc very atully throughout. )l ediu m- textured, soulewlmt poorly drained, alkaline soil formed iu alluviums front c :dcar- ouus silt, vulcuuic :Lab, and Jiatuaite; depth (0 W:tler table Iluuuntes (r0111 near the surface to about 6 feet. Very Jeep, moderately well drained upland suite %vitt: medium - textured smrf:Lee layer 'lid umdi- nun or moderately tine textured subsoil; (united (ruts silt uu rolling to hilly uplands. Shallow, swampy, iu Ierwit teat punch and fringes around la Lea that hate a 11 net tut Ling water table. Engineering data is nut given, :s laud type is mu variable. Very deep, well- drained soil developed in loess uu ridgetops and kuuUa en the lulling to lolly uplutid in the Palouse Soil area. 1 Gravelly, medium - textured, sinu:o'hal exces- sively (Indeed sails funned in gravelly glacial outrank inuterial from a variety of acid, igmeoua patent rusk; on ueuly level to mod- erately eloping terraces; depth to mixture of s.mul, gravel, and cobblestone, r:ungea from 2y4 to 5 feet. Similar to Garrison gravelly luaus, except that the su1(acu payer pa very gravelly. Similar to Garrison gravelly loam, except that the surface layer pa very stony. Very deep, mediums textured, well - drained suit, turmoil (rum acid igneous glacial till; Surface Myer iullucnced by Ines and volcanic nail; 011 gently rolling to steep uplands. TABLE G. Brief dt atYtjll lulls of Soda um/ the D,:plll front nllff:tee /u. U lu 24 24 toad -14 to 53 53 to GU U lu 26 2G to 11 -11 to GU U to 22 22 to 72 U tuS a to 23 2 3 to GU 0 to 15 15 to -11 41 to GU 0to 15 15 10 .L1 del lu 60 0 to 72 I -131 Classification USDA, texture Silt loam Gravelly lu:tm Very gravelly sandy loam. Gravel Silt luau' Very tine Study Iuam. S:ualy r6p' Silt loam Silty clay loam Silty clay loam • Silty clay 1 Silty clay Mato Gravelly loam Very gravelly lu..un_ Sand, gravt 1, :mil cutdilcstoneb. • Very gravelly loam.. Very gravelly loam -. Saud, gravel, and cuhhlcalouea. Silt loam 1 1 .1 .1 .1 .1 -1 .1 -1 .1 1 -1 _1 1 11 _1 82 Map symbol PoA PsA PsB RdB2 RdC2 Rh SaB SaB2 SaC SaC2 Sa D Se Sk Peone silt loam, drained, 0 to 5 percent slopes. Phoebe sandy loam, 0 to 5 percent elopes. Phoebe sandy loam, 5 to 2U percent slopes. RdA lteardun silt loans, 0 to 5 percent slopes. Rd B Re rda n silt loam, 5 to 20 percent slopes. Reardon silt loam, 5 to 20 percent slopes, cruded: '.,. " Iteurdam silt loam, 20 to 30 percent slopes, eroded. • It iverwusb. Ro - hock outcrop. Schumacher silt Want, 0 to 20 percent slopes. Schumacher silt lunuy U to 20 percent slopes, eroded. Schumacher silt fount, 20 to 30 percent slopes. Schumacher silt loath, 20 to 30 percent slopes, eroded.. • Schumacher silt loans, 30 to 55 percent slopes. ScC Schumacher gravelly silt loans, 5 W 3U percent blupes. ScC2 Schumacher gravelly silt loan, 5 to 30 percent slopes, eroded. ScD Schumacher gravelly sill loam, 30 to 55 percent slopes. ScD2 Schumacher gravelly silt loam, 30 to 55 percent slopes, eroded. Semialmnoo muck. Serniuhmoo muck, drained. Sm Semiuhmoo muck, moderately shallow, drained. SnA Snow silt Ioum; 0 to 5 percent slopes. SnC Snow silt loans, 5 to 30 percent slopes. SOIL SURVEY Description of boil and site Similar to Petite silt loan, 0 to 5 percent slopes, except that it 6 suumwhat poorly drained. Very deep, well- drninecl and somewhat exces- aively drained mils Oil ucurly level to gout ly sloping outvasl terraces. Data u6u :applies to Phoebe part of Bong uud Phoebe undiffer- entiated groups (BpB, BrB. BrC, Bs8) except for texture of surface layer. 1'ery deep, well.drainetl eloypan soils formed from loess on rolling uplands. Similar to Reardon silt lo:uu, 0 to 5 percent elopes, except that 4U to 60 percent of the original surface Myer has been removed by erosion. 'Phis uuitdoceurs on low bottoms along perennial I and intermittent strau6; consists of gravel, ! cobbleb tones, to ul stones, with It very little liner interstitial matutitl; flooded every year during the runoff season. Engineering data is not given, as laud type is too variable. This unit 6 more that 9U percent granite, guvia,, schist, or basalt outcrops. Engineering data are out given, as laud type 6 tut) variable. Deep, well - drained soils formed in quartzite, soft sandstone, or shale, mixed with loess and volcanic talc in upper part; depth to quartzite, shade, or soft sandstone ranges (rout All to SO inches. 'Ike eroded Schumacher silt loan 6 similar to the um:rolled Schumacher silt loan's, except that 30 to 511 percent of t he surface payer has been removed by erosion. The a cruded Schumacher gravelly silt loans are bi oiler to Schumacher silt Wm m,, except that 15 to 20 percent of the surface layer 13 gravel. The eroded Schumacher gravelly silt looms are also mmiLtr lo Schue:eher silt Lams, except that the surface payer is gravelly and 30 to 50 percent of it has been removed by erosion. Similar to Semiahmoo muck, drained, except that it is very poorly drained; vv at er gable stays within 1 foot of the surface. Engineer- ing data not applicable. Very deep, poorly drained, organic soil developed from titles, reeds, and sedges in basins, forester hakes, toad stye ups; water table Ow:- Wales from 12 to AS inches below the surface. Similar to Setniahluoo muck, drained, except that it is moderately shallow to bedrock, mineral boil, or thick compact layers of pumici te. Very deep, well - drained, medium- textured soils formed from recent alluvium and loess. 1 -32. TABLE: 0. /'ricj deetriptiona of Soda ant/ 1G.;r Drlah from surface ru. 0 to 11 Silt loam Gl: aailie:a ion USDA texture U to 34 S.uuly loam 34 to 44 Loamy sand - to 60 Sauul 0 to 20 Silt loam 20 to 43 Light silty clay 33 to 00 Silt loam 11 to 53 Gravelly silt loam and gravelly Leavy loans. 53 to 72 Gravelly clay loam. -. 0 to 17 Muck 17 MU Peat eat Olt S 5 C 0 to 60 Silt loam \I ( DATE ) 1 1 1 1 1 1 1 1 1 1 1 1 11 a u u u u E .1n 9a 9 S Po he F Respectfully, Gary S. Nelson Planning Engineer A w n ', YYl'1 Rti !(DEVELOPER'S NAME &.ADDRESS) ;Dear Mr. T I� !� }, tz SUBJECT: 1) 0 ,eJ AJ - Et. 7 l ;PROJECT # P L12- c AUTHORIZING•SIGNATU�RE .4 ,,, 1 , t, / �� l � DATE cc Fne nerr ' I / " I P \ �� � (j / 5 k\g\t\r- value.res "���JJJ D.C, In to >n. a ,. F s — y-tk 4 n % St2-.. A Additional information with respect to the above projects subsurface soil conditions is required to complete the plans review process. Specifically, representative values for soil percolation rates and soil - subgrade "R" values are necessary to evaluate the proposed pavement section and storm drainage disposal system. The Spokane County Materials Laboratory has reviewed the proposed development plan; made a preliminary investigation of the.on -site conditions; and has determined a minimum number of Z percolation rate.tests and / stabilometer "R" value tests are required. It estimates the cost of such soil borings and tests to be approximately $ /Soo excluding utility locatio Additional M trivia's Laboratory remarks are as follows: 44e e/ 1 D z/c s d � o� ,° A � The Spokane County Materials Laboratory is available to supply this information during the design review process. This information also may be supplied by any qualified soils firm. The tests and methods must meet Spokane County standards, and be inspected by Spokane County personnel. Please note that the above is a preliminary estimate only; additional tests may be necessary dependent on the conditions encountered, and therefore, actual fees may vary. Actual fees will be based on hourly equipment usage rates and salary costs incurred by Spokane County during the progress of the work Plus a 10 percent administration surcharge. Fees will be invoiced monthly as accrued. Please be advised That signature of this letter constitutes agreement to pay for the above described fees. Failure to pay these fees may result in delay in completion of approval of the project or other possible Sanctions. If you desire to have us undertake this work, please sign below, and return the original to our office. Typical TO: MATERIALS t.AI(ORATOi2( FROM: L /V 8a _se Please furnish Stahllomccer R values 0 tesr -- _. -.- -_ County Road Name(s) 11 RIO, CRP /PLAT No.. ROAD NAME. j meERL /ALF IIRIVL Drilling request.- r i ; .; , E. ? Those are U necessary ROAD NAME FUNCTIONAL CLASS • Hajor. Arterial . Secondary Arterial Col lector ,Arterla Access Road Private Road • guideIin.•'trafflc indexes only. tn calculate Individual' traffic tr • SPOKANE COUNTY ENGINEER'S OFFICE • Drainage Percolation grenter.than 7 " /hr. yes_ No Esc. Act. Remarks* .� , 5 � / — Gmf • Please note any unusual characteristics of soils and /or topography. Are the soils sui:.- able for the use of drywalls? Are there any unusual drainage considerations? ■L FOR OFFICE USE ONLY FUNCTIONAL'CLASS. TRAFFIC INDEX 5 Cress Section Ilccerminat lan Dar. for the soils on the 0 actual following proj. :ct: Sec. Twp. -- -- ' R.— ... (See attached section map) .R VALUES LOCATION L a11JSLF4 -_ I S 1 1 -- - -e e3 - - - - -- • ,el c RLk.O-I /- (7- 'a f S -r IS _Cr J LL M nt y Ff TRAFFIC INDEX" Tr.tr1tc data el•.•clfle V• th.,.l.rojt.et ar^ lndoxes. . 1 11 SQA radf .. _ ‘. c.cpr...cg SAMPLE N ASSUREIR.L sANPEE 140.1 IRS NO. ...... — HEAT No ..----- _ nun 0 ACCEPT 0 CT OUNKTITY REPRESENTED I •RODUCEDON DATE SCREEN 1 DLST. LAB. 1 SPECS. REMARKS: 1 FLEW COT ri j ai Weight rks Afaahengton Stata Department of Transportation REEL NO. TRUCTVEAR NO. Pa rgck :41 /1Pd TO STATION issing. Cumulati:re. Y. ten OasED ON FIELD TEST NO. Mk Down Donna C" CI No DISTRIBUTION: snICE%WAStan HQ LAB hitit20" 4.4J14 twact Na NO. SECT 02 3 E:ST REPORT FOR___S Pad F , Sieve Analysis of Aggregate Wt. Grms. Retain Pass. X C.) / A Cio Ate 2 z- Po /b GOlil SueCONT1AC1014 basPELD AT ay TESTED Ar NSPRRIS CONUNT *a IRE CIESTral PA-A Pmpo Envier Oalanlnacn Cod. PtIons: (SCAM Spec. % Req. Frac — E a a I i : I — li 4 I, I : la : rpn ---J-9+9,r-mat_tanal:r cupy 1 ctatfted III V: a P OOT iur tlyie only_ , i : : : s. i . . Si 'LE TRANSMITTAL - ACCEPTANCE/AS.IAJAANCEANDEPENDENTASSURANCE" " h in 7/ fl c ( I ASPnisT CONTENT REOuEST ED AT .40/00E Ccwsw Fun Fliactuto /Qs V f S we 70,1, Y 41:e 1 7081 44 -2 6a0 a a V° "°'°""°E- 7N7 OCT. LAP. ta0. 1"07r7M"' Dun FLalo OAT Los Angeles Test Degradation Test Bulk S. Gravity Sand Equivalent Dust Ratio VS maa. Dawns) I -135 LAn NOS?/'V7 Other Test Results Stabilometer:• - R" Value Swell Pressure (>,7 Drainage Factor 1 . File2.5ia .Gen._File.2L Laborgodes , . - 7 03 4 -/c. ; DateMAR 30 1990 BY LE 11 . Lab • Zills;€,Atimipe! - ' s . t1 En:: ;2 P ...4 .1‘2 C ( 2) I 7-.(c).-M) i MATERIAI JOHN R. STRADA P.E. ,p ENGIN9E51. . . 1 1 1 1 1 1 1 1 1 JOS NO. LOCATION DRILL DRILLING CONTRACTOR SAMPLE HAMMER: WT. w SAMPLE IS o u w M • a = 5 H 4 2 w W t'- LL ~ � ff i -_..�� a w h. NI- S ,n > O . 3 8 , �� u — w - ca u gel! ▪ a . ▪ I ' i° w¢ ▪ zm 1u •J u oLS a L 108 TITLE FEATURE ANGLE DROP SUBSURFACE EXPLORATION LOG COORDINATES SEARING REF. EL. DRILLER D4 / ^, /'• °'^ TYPE i s 'Ky9 52 (s0 BORING NO. SHEET N a MATERIAL DESCRIPTION Z4 ' n DATE DATUM INSPECTOR • 5,17 /on..l ) (7.111:..• / 3 c r .- C ALL /c • OF V I 7,) NOTE: THE LOG OF SUBSURFACE CONDITIONS SHOWN,NEFEON APPLIES ONLY AT THE SPECIFIC BORING LOCATION AND AT THE DATF 1 INDICATED. IT IS NOT WARRANTED TO BE REPRESENTATIVE OF SUBSURFACE CONDITIONS AT OTHER LOCATIONS AND TIMES. 1 1 1 1 1 1 0 11 11 11 U E 3 — I !� JOB NO. , / LOCATION DRILL 7 ' DRILLING CONTRACTOR SAMPLE HAMMER: WT. w SAMPLE O o 0 W s Ck Z = f C = W W < < W {r 1•• W C W O d r I J W gw og c s =� a a \ D � � w 1 � a _ ' to uQ zm 30 A. N _ 1\ 4 1— ANGLE BEARING REF. EL. DATUM DRILLER / ""I INSPECTOR DROP TYPF Prrin 1 -- ' 1 -15 I BORING NO. 7 SUBSURFACE SHEET 1 OF EXPLORATION LOG IOB TITLF d Z °Pf' r , /Z. N 0-t• 4 �' FEATURE COORDINATES '1ATE MATERIAL DESCRIPTION x , 1 77 /aaa7 O -, c l C 0 1 / . S 1 5ra ✓cl 1„) r ,)os - d • c C J to1„rt , C..)12 /G ;0 �1 - po cc w I- < 0 0 Cr 0 0 NOTE: TIE LOO OF SUBSURFACE COFOITIONS ShOwN 1£FEON APPLIES ONLY AT ThE SPECIFIC BORING LOCATION AND AT ThE CATF INDICATED. IT IB NOT WARRANTED TO BE REPRESENTATIVE OF SuBSUMFACE CONDITIONS AT OTHER LOCATIONS ANO TIMt8. ; ° °I I • • /2 : 1 • o i , 9 C 3 r /3 /8 � —4 ' J ; fy1 I ` 254,000 ,I ° I Ii� , 37 .ii I I /.Kzoaa. 1033.0 X /40,./ so o h . 34 ti 33 2 'Q( 22,"° . 24 23 22 29 • /8 /9 7 X20&9. j 20 2 / So 3/ h. 23/€ /f /3 k 4 9 I- 8 so' Is Po t 7 _ 1 1 1 1 1 1 1 1 1 1 a o 0 . a 4 1 1 a TO: MATERIALS LAB ORATORY /� FROM: & /I/ i . .S0 / V Please furnish Stabilometer R values for the soils on the following project, in accordance with the attached agreement with the developer. Section a `Township aS Range Y L/ (See attached section map) Project # P ) V 9- "R C. Activity # • 11 • ROAD p NAME' - ' ` ' ' R VALUES LOCATION 77MAEk LI Ii /I > .5' i4 As Ae• Cm P 'r S4 1I S -o :--r-i-I. ;.. Other Tests' Needed Listed Below: Cr„:, NAVE A )TAe;Q E.0 #F(111_ Ts nP / l JA ,mss WIa/QC S — 1 QD 4D11 ,CoQ Y Va. T'A/ C�7, Drainage - Percolation greater than 72 "Ihr. Yes No No Est. Act. 7L / 9" Drilling Request Estimate • 0 Priority (1) Needs to be drilled. (2) Estimate of 'R' value and perc given. These estimates can be used as a basis for plan approval with note 'actual surfacing depths will be based on 'R' value tests: Estimate of 'R' value and pew given. Not necessary to drill. Remarks* co,.,:, cd ea " • r " "re- • 'Please any' unusual chaiacteristics'ol soils and /or topography. Are the soils suitable for the use or drywdlls? Are there any unusual drainage considerations? XSEC.FORM.ON2- (3) r ' SPOKANE COUNTY ENGINEER'S OFFICE Geotechnical Analysis Date: / — 9 d•N r1as 9 11 1 1 1 1 1 1 1 1 0' 1' 10 — 15" culw JOB NO. P 'I411 LOCATION I^IT. DRILLING CONTRACTOR C Pnit al SAMPLE HAMMER; WT. SAMPLE i f ~ n V H < z ce LI = u gag a. 04 Yz :no 6 JOB n , • I•. z O W M U W q r z Y. C cc •IC I _, W Z o > 0 O a ura 3 a au mC D. SUBSURFACE EXPLORATION LOG TITLE Rink' r rnn.-T FS-r,)rc (toy TV R 71 sr r . DRILLER T) I :• . TC DROP TYPE btY VERY La's . Glz y mol,r � " ro S 0 O u - t ZS yy S BORING NO. 1 BNEET OF - I N,. zih I>nntis MATERIAL DESCRIPTION SgNDY 11- 1, T ' C.ir.L_t_ (:i 41t;EL To `]r`.13L`7 L JITIY SA N:0Y 7•LT 'J-; Il'; I .): ,: o . Of P70r,t. a I el (r-0 K`r .. te. L f )ATE ^ - DI Q .• INSPECTOR •1 - 'I.•T igalr..:0 y 5 Grit_ L_r.T2,(; loo rm. J I'tJ 0-1 T,.-J ;r: n.. :),; but IA: i■Pilftx ,�1 IT In.11 i cg i.Ju �.� l-'T IYt alr.:-(1lti r. Y IL�L Co1-0IT104.: T' .cS TIES_ IJ.:rrr_a ;i c L t 0J.IiII -:o Iw" L:SS Ti0A,- t 1 IICri:I -%<< - Iltrl L. 7i Ik2 It.:ui L1 r-.'. - . , • a re 0 0 0 1 1 1 f 711 I 1 1 1 1 1 1 1 1 1 1 1 1 JOB NO. ' P IVC''c °- 3 - • JOB TITLE LOCATION Ik T T m.i =`P 4-.A }c T14 DRILLING CONTRACTOR S)k) r n. SAMPLE HAMMER: WT. S n W PI W V V "I • S — 9 - .111 I YI1111111 is 11111 . 1/ Z o O0 r Y z F z 1: WW I - 2 W W << W W �5 T Id Yy < m _ > O U m u a O W > Q 2, m 1 U Er a kJ3 SUBSURFACE EXPLORATION LOG RIo[ait =T CS 4 -1 01 ." citen •.nI::NS 0 -Or? 441 mop AI F C3.3:.r. 2.512, co DROP cc 0 0 U Cr. 1132.31. N DRILLER T) I.i,ITC TYPE Sla...ov jlLr /01G. iNa ryzin ti ( -`) yI 1a \1 n.uTF .; `JLLLO - r S C LIi S ?S MATERIAL DESCRIPTION DATE c C Si– ra .1J EaL:G -. L_IT '71: n1:i . S4Lr BORING NO. �T SHEET _ OF --a-- I J C INSPECTOR Ti 1 .`1.1 r` Ln: o L.) `IBC GAL L.,ri I -(Z = 103 r- AL TLC:0 TtS' :r.. ro NIL_ !ti \l'P¢cx. 11% ilk t..-7 ti la f ILLCil J. QT11 T111J K l.` RT;-_,` t1.. TNL UCL:.. \ Kg l':.I:uT.Lj Tyal v 0 ,w.. Lit 'lulu.: ■ rn1i....T_ - .. 1 I'. SSum._ V ?5:. - =.:L, IT ,Cn.: RY. -._ .:di - ^ : Z Tiliil` 72 SrL F:L� Y1 I- fTl _ 0 0 2 O '-i 4 O 21 1 - v...., fri = TEST LocATIct iS • /I tIDGEMS?:11 r7 I 1' 4 T--- -- -- "\-- \ 4 1 5 1_ 6 lul 1 >/ in 4- --1 Ttil I, - i_,9 1—. /1 _1___ 20 30 31 1 32 / EA' 21 V ELLOWSHIP 1 — L I TFt 1 15 9 10 ka / 1 . . / T \ csD PRE+ /WEN 1 R10 ESTATES N0.4 1ST 2 t 2 13 1 10 AVE / i '�I 1 i . •/ 1 -; ! 4 13 2 yq 5 1 1 1 1 Ij 1 11 lj 1 1 1 1 1 RECEIVED JUL 111994 SPOKANE COUNTY ENGINEER STORMWATER DRAINAGE REPORT For Ridgeniont Estates North - 3rd Addition 2. A 23 -Lot subdivision located in the NW 1/4 of Section 25, T.25 N., R.44 E Veradale, Washington 99037 for Tupper and Associates, hi;. December 16, 1993 Revised July 1994 Report Prepared By. Simpson Engineers, Inc North 909 Argonne Road Spokane, WA 99212 I'It .I.CT NO. 12716 * ** TABLE OF CONTENTS ** Part I: On -Si:e Drainage Analysis Part If: Offsite Drainage Analysis Supplementary h:1,apc: 1. Strad Plan - Profile, Renz Drive Drainage Map, Ridgenlonl Estates North - 3rd Addition 3. Offsite Drainage Map, Ridgemont Estates North 4. Drainage Easement Topography Map OFFICIAL PUBLIC DOCUMENT SPOKANE COUNTY ENGINEER'S OFFICE ORIGINAL PROJECT, PA? 1-/R SUBMITTAL y RETURN TO COUNTY ENGINEER EXPIRES 7 :17t 9 1 Appp roe ads 8 0 • Vows__ r 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Part i ON -SITE DRAINAGE ANALYSIS An analysis of stormwater flowing to "Drainage Pond 3A" * * * * * * * * * * ** * * * * ** TABLE OF CONTENTS * * * * * * * * * * * * * * * * ** = 200' Map of Basins Draining to Pond 3A 1 -1 Project Overview 1 -2 Summary Table 1: On -Site Drainage Basins 1 -3 Summary Table 2: Of -Site Drainage Basins 1 -4 On -Site Basin Data: 1 -5 I. Rational Method Peak Discharges for Q, Off -Site Basin Data I -II 1. Rational Method Peak Discharges for Qsu 2. S.C.S. Method Hydrographs for Q and Q ui , Composite Flydrographs: Q and Q ,ou 1 -60 1. On -Site: Basins 3A+38 +3C +3D +4C = RidN3 2. Off -Site: Basins Renz -I + Renz -2 = RenzC 3. On -Site + Of Site = Ren3A Level -Pool Reservoir Routing: Pond 3A 1 -99 Drainage Pond 3A Volume Calculations 1-116 Existing Ponds - Off-Site 1 -118 Channel Flow Analyses: 1 -120 1. Existing Ditch from South of Plat (= flow from Basin Renz -1) 2. Ditch Entering Plat from 5th Addition (Renz -1 + Renz -2) 3. Ditch Extension to Culvert (Renz -1 + Renz -2 + Basin 3D) 4. Culvert under Renz Drive to Pond 3A (above + 38 + 3C) 5. Ditch from Radco Drive (Basin 4C) Capacities of Curb Opening Inlets 1 -127 Vertical Curve Stopping Sight Distance Data . I -128 S.C.S. Soils Map and Descriptions 1 -131 R -Value Tests 1 -134 Retention Pond 3A Maintenance Plan 1 -145 \ '\ ' X - y � • A ror / �f �..-.���� �- 4 r • — . — Agf ,_ 1� 8 ego OVERVIEW This stormwater drainage report examines runoff flowing onto, across and off front the land area in and around Ridgemont Estates North - 3rd Addition. This report is divided into two parts: Part 1 ( "On- Site ") deals with storowater draining to the 1/4 -acre ponding area located along the north boundary of this plat , while Part II ( "011site ") considers runoff to the 6 -acre drainage easement/low area located just to the east of this plat . Both ponding areas take stormwater from both within and outside of'the plat, but while most of the plat's nmotf stays within the plat and (lows to the smaller, on -site pond ( "Drainage Pond 3A "), the 6 -acre casement/ponding area takes mostly water from oflsitc. The "on -site" low area, called "Drainage Pond 3A" on the attached maps and calculations, receives stormwater runoff from 7 individual drainage basins. Four of those basins are located wholly (or at least substantially) within the 3rd Addition boundaries, and are referred to as 13asin 3A, Basin 313, Basin 3C and Basin 3D. A fifth on -site basin, 3E, drains to the 6 -acre off-site drainage ponding area, and is detailed in Part 11 of this report. One basin within the boundaries of proposed Itidgemont Estates North - 4th Addition, called Basin 4C, also drains to Drainage Pond 3A. The remaining two basins contributing runoff to this pond are located in the developed arca to the south of 3rd Addition. Now known as " Ridgemont Estates ", this area was originally named "Kern Subdivision ", and so, to reduce contusion from overuse of the "Itidgemont" name, the drainage basins in that area are referred to as Renz -I and Renz -2. These othite basins Clow onto the 3rd Addition via an existing ditch. The old catch basin and drywell in Itidgemont Estates North - 5th Addition (just southwest of 3rd Addition) will be abandoned, and the existing ditch crossing from 5th Addition to 3rd Addition will be extended to carry runoff front the two "Rent -" basins to Drainage Pond 3A via a culvert under Renz Drive. , The Summary Tables and Individual Basin Data for Part 1 (Willis report present inlomtation in the following order: I. R.E. North - 3rd Addition On -Site Drainage Basins, i.e. Basins 3A through 3D 2. 4th Addition On-Site Basin 4C, which flows to Drainage Pond 3A from the north 3. Oflsite basins, Renz -I and Renz -2, which flow into Drainage Pond 3A from the south The Renz basins are partially defined by their approach path to the existing catch basin in 5th Addition (just upstream front the southerly tip of 3rd Addition). Flow from Basin Renz -I approaches the existing catch basin from the south via the existing ditch through Itidgemont Estates No.4 -2nd Addition, while Basin Rcnz -2 approaches the catch basin from the east via an existing 15" culvert. The catch basin will be abandoned, and the (lows from the two offsite basins will merge and flow into 3rd Addition via the existing ditch, which will be extended to Renz Drive. A culvert under Rcnz Drive will carry this offsite stormwater, along with most of the site runoff, to Drainage Pond 3A. I -2 Basin Nannc: Location 'fowl Area Pervious Area (Lawnn/Lndscp) Gravel Arca (Lift Station) Impervious Area 11 D'ways= Arca Ill louses =Area Asphalt Streets "208" Volume Peak Qin Time to peak Pond Name NOTES: SUMMARY TABLE 1: ON -SITE DRAINAGE BASINS These five basins are located mostly within the plat. 3A 38 3C 31) 4C ItidN3 Units center southeast southwest south N. 4th Add composite — 105,600 133,740 121,210 87,580 110,360 558,490 soft. 69,257 102,579 105,027 78,580 77,360 432,803 sq.fl. 1.590 2.355 2.411 1.804 1.776 9.036 acres 0 0 0 0 8,700 8,700 sq.0. 0 0 0 0 (1.20 0.20 acres 36,343 31,161 16,183 9,000 24300 116,987 sq.ft. 0.834 0.715 ' 0.372 0.207 0.558 2.686 acres 8= 8,000 8= 8.000 3= 3.000 3= 3.000 6=6,000 28= 28,000 soft. 8= 16.000 8= 16,000 4= 8,000 3= 6,000 6= 12,000 29= 58.000 sq.11. 12,343 • 7,161 5,183 0 6,300 30,987 sq.ft. 515 299 216 0 263 1.293 cu. ft. 3.15 2.78 1.47 1.45 1.63 cfs 5.0 6.7 11.2 5.0 13.4 min. 3A 3A 3A 3A 3A 3A Driveways are assumed to be 1,000 sq. ft. of concrete per each lot, and houses are assumed to cover 2,000 sq. ft. per each lot. Peak Q10 values are used in determining the capacities of the ditches, inlets and culvert. The extreme west end of this plat flows westward into Ridgemont Estates North - 2nd Addition; the north half of Renz Drive drains to "existing" Pond 5, and the south half drains to "existing" Pond 6, both in the 2nd Addition. See "Existing Ponds - Offsitc" in this report, and the Drainage Report, street plan- profiles, and drainage plan map for Ridgemont Estates North - 2nd Addition. Basin 3C includes three assumed future Tots between Blocks 2 and 3 of this plat. Basin 3C also includes land arca outside of this plat that drains into the basin from the southwest, including an existing house at the east end of 21st Court cul-de -sac in "Ridgemont Estates North - 5th Add " Basins 3B and 313 each include three of the existing developed lots in Block 1 of the original Ridgemont Estates, north of Vera Crest Drive. The basins in this table drain to Drainage Pond 3A, in Utility Lot 8. For an analysis of Pond 3A, see the sections on "Reservoir Routing" and "Pond 3A Volume Calculations ". Basin 4C is a portion of Ridgemont Estates North - 4th Addition, and includes the north half of Pond 3A, the lots immediately to the north of the pond, and the south half of Radco Drive between high points 5 +00 and 8 +50. The street portion drains to Drainage Pond 3A via a ditch; see section 5 of the Channel Flow Analyses. Basin 4C includes three lots in Ridgemont Estates North - 3rd Addition (Lots 10 -12, Block 1) and about 8,700 sq. ft. of gravel at the regional lift station site (Utility Lot A). 1 -3 NOTES: SUMMARY TABLE 2: OFFSITE BASINS These two basins consist mainly of existing developed lots on the hillside to the south of this plat. This area drains into the plat via the existing storm sewer easements between Lots 16 & 17, Block 1 and between Lots 11 & 12, Block 1, of "Ridgemont Estates" (originally "Renz Subdivision "). Runoff from these basins flows into Ridgemont Estates North - 3rd Addition via the existing/proposed ditch from the energy dissipator in Lot -3 of Ridgemont Estates North - 5th Addition. Basin Name: I RENZ 1 RENZ -2 l2ENZ -C I Units _ Total 497,240 851,260 1,348,500 sq.ft. Area 11.415 19.542 30.957 acres Total Pervious 448,500 663,340 1,111,840 sq.ft. Area 10.296 15.228 25.524 acres Total Impervious 48,740 187,920 236,660 sy.tt. Area 1.119 4.314 5.433 acres Lawn/Yard Arta 392,500 588.140 980440 sa.ft. Undeveloped 56.000 75,200 131.200 su.ft. ii Houses =Arta 1 1= 22,000 27= 54,000 76,000 su.11. N D'ways =Area 10= 10,000 27= 27,0110 37.000 su. ft. Asphalt Streets 16,740 106,920 123,660 so Composite'CN' l 65 70 68 curve ti Peak Qsn 1 6.55 15.37 21.92 cis Time to peak 1 14.10 14.67 14.5± nun. The two basins, Renz -1 and Renz -2, flow together at the planned "onergy dissipator" located in Lot -3 of Ridgemont Estates North - 5th Addition. At that location, flow from these two basins are combined as composite Basin `Rutz -C ", and this combined flow enters this plat via the existing ditch and proposed ditch extension. Peak Q50 values, as calculated by rational method hydrology, are used in determining the capacities of the ditches and culvert. Peak Q50 for "Renz-C" assumes concurrent peak of Basins Renz-1 and Renz -2. The "final destination" of stomnwater from these basins is Drainage Pond 3A. For an analysis of this detention pond, see the sections on liydrographs, Routing and Pond 3A Volume Calculations. -4 On -Site Basin Data The following pages present Rational Method Peak Discharge calculations for the 5 "on- site" basins that contribute stormwater runoff to Drainage Pond 3A, as listed in Summary Table 1. The basins are presented in the following order: 1. Drainage Basins Within Ridgemont Estates North - 3rd Addition: 3A 313 3C 3D 2. Drainage Basin Mowing Into Plat from North: 4C 1 -5 1 1 1 1 1 1 1 1 1 1 1 1 1 1 DATE = 4/25/94 RATION L, FORIIULA HYDROLOGY DESIGNER =• D.H.C. BASIN 34) PROJECT NAME = RIDSEMONT ESTATES NORTH -- 3RD ADDITION DESCRIPTION = ON- -SITE STORMWATERI DRAIN( -1GE -- DEVELOPED SUBAREA '1 = 1.59 ACRES SUBAREA 1 RUNOFF COEFFICIENT = .15 SUBAREA 2 .834 ACRES SUBAREA 2 RUNOFF COEFFICIENT = .9 TOTAL AREA = '2.424 ACRES ' COMPOSITE RUNOFF COEFFICIENT -= .408044554455 OVERLAND . FLOW VALUES Ct = .'1Ei L = 18 N = .016 S. = .0213 CHANNEL FLOW VALUES L = 398 Z1 = 36 Z2 _7 .172 N = .016 P = 0 = .007 1 = .288 COMPUTED VALUES ' DUR = 5.00 I10 = 7.10 010 = 3.15 'OA = 3,15 • ITG 1 DATE =_. 4/25/94 OVERLAND PLOW V(dl_JEE Ct = . 1 5 L_ - 150 IV -- .4 .. _ .:9 CHANNEL F"L_C: L! `✓=,LULL L.' 2.00 11 _= l.L' _ - 172 8 .007 JD = LOh1F'UTED VALUES . . I)UR = 6.67. [710 .... 2.70 o rr . .= 2. 7 9 , • F i 1UNFli._ i=ORI'FIJL.A HYDROL.O(3f DE`]IUCJi::R _- U_FLC;. BASIN as FRL1JECT NIAi = 8TDI_,EIlIJN1 [:r fA IE2 NORTH - •:RD ADDITICH DESCRIPTION' ._'' ON - -3TTE 9T0RI•IWATE ' Dr 1N: RE - DEVELOPED • SLJHFIIREA 1_ _ 2,355 ACRE6.• . 'E,UDARiEA 1 RUNUER COEIF18] NT - _15 EijBARE(1 '? _ .715 F.L "iiL. i SUBAREA 2 MINIMA- rL.IL,I FIC:1EI'•11 -7 TOTAL AREA = :.07 PCRE.5 COMPOSITE RUNEIFF CDEFFTIOTE -Nf = . _24c7 _u710: 1 I- I DATE = y25/9 m PROJECT NAME := R1DGEMONT ESTATES NORTH - 3RD ADDITION /I DESCRIPTION = ON-SITE STORMWATER - DEVELOPED I SUBAREA • 1 =. 2.411. ACRES. . SUBAREA 1 RUNOFF COEFFICIENT = .15 - SUBAREA 2 = .372 ACRES • SUBAREA 2 RUNOFF COEFFICIENT = .9 IL TOTAL AREA = 2.783 ACRES COMPOSITE RUNOFF COEFFICIENT = .250231527129 OVERLAND FLOW VALUES 'Ct =. .15 L = 520 N = CHANNEL FLOW VALUES • Z1, = :36 Z2 = .172 • N = .0 •13 = 0 • = .007 TD = .216 COMPUTED.VLLES DIJR = 11.18 I iln . 2.11 • . 010 - 1.47 QA RA 1ONAL FORMULA HYDROLOGY (s 7: cDmpirncvn 0,1 rvit.. aftsini RaNS • : DESIGNER = D.H.C. BASIN 3C 1-6 • 1 1 1 1 1 1 1 1 1 1 1 1 1 . 1 1 DnTE = 4i2/91 ' PROJECT NAI`IF == Ft I1)GEN ;JNT. ESTA1E ; NURTI-I -° :RD r) ADDITJCJH DESCRIPTION = UN --SITE E rBRNWATE . DRAINAGE hE'VEI_uI''t D Ei.IBrAREA 1. _= 1.SO4 SL1F':(-L iE_i=1 ..._ = .!f)7 ACRES T UTAI€_ AREA '- 2.011 ACl;l: 5 L]VERLANU .FLCLJ VALUES CHANNEL FLOW VALUES -r l •0 . 5 CONFUTED VALUES 'CJIJii 5.00 '11' 010 1.45 'OA. ct L 250 ' N .1 a 4 AT.1(: NAL FO RNUL=, -I I:I iI_LIUY ,_.'LES1LNL1 ■ D.H.C. [::d4E111 T SUBAREA 1 RUNOFF C.17EFF101ENT = .15 SUBAREA 2 RUNOFF EDEFF=101:ii'1T = .9 GONFIJS I TE RUNOFF ' COEF F.i C I ENT =- 1 - 9 , 7 _20:rs9i911' RATIONAL FORMULA HYDROLOGY 0 11 DATE, = 3/29/94 DESIGNER = D.H.C. PROJECT NAME = RIDGENONT ESTATES NORTH - 4TH ADDITION DESCRIPTION = STORMWATEP DRAINAGE - DEVELOPED CONDITION I 'I' SUBAREA 1 = 1.776 ACRES ' SUBAREA 2 =.i:0 ACRES SUBAREA 7 = .7 ACRES 19 SUBAREA I = .275 ACRES ' • lb SUBAREA 3 =, .115 ACRES : 1 • T9TCL AREA = 2.571 ACRES JVERLAND FLOW VALUES Ct = .15 L = 7.&0 N = .1 S = •005 CHANNEL 1: VALUES L = 130 11 = 76 = .172 N = •016 = • , S = .004 TD = .231 • CONPUTFD VALUES DUR = 13.4 Il0 = 1.90 cur.) VIA DITC.H To Powt, 211/4 f.r.. • - CA - 62 T DASIN IC SUBAREA 1 RUNOFF COEFFICIENT = SUBAREA 2 RUNOFF COEFFICIENT = SUBAREA 3 RUNOFF COEFFICIENT = • SUBAREA I RUNOFF COEFFICIENT = SUBAREA 5 RUNOFF COEFFICIENT cdmrosITE RUNOFF COEFFICIENT N-10 . 13 pat/nos . 73 c . 55 suwa_ .9 IttaF.5 . 9 ASM-WLT Off -Site Basin Data The following pages present calculations for the 2 "off-site" basins that contribute stormwater runoff to Drainage Pond 3A, as listed in Summary Table 2. The calculations for each basin are presented in the following order: BASIN "RENZ-I" 1. Rational Method Peak Discharge for Qs 2. RunolTCurve Number Data for actual areas 3. RunoffCurve Number Data for 10x areas, used in hydrographs' for increased accuracy 4. Time of Concentration, Te computation 5. S.C.S. TR -55 Method I-lydrographs: RENZI -AX, hydrograph for 50 -year storm cr l0x areas RENZ I -BX, hydrograph for 100 -year storm a 10x areas RENZI -50, hydrograph for 50 -year storm cc actual areas (RENZI -AX x 0.10) RENZ1 -100, hydrograph for 100 -year storm @ a actual areas (RENZ1 -BX x 0.10) BASIN "RENZ-2" 1. Rational Method Peak Discharge for Qsu 2. RunolTCurve Number Data for actual areas 3. Runoff Curve Number Data for 10x areas, used in hydrographs for increased accuracy 4. Time of Concentration, Tc computation 5. S.C.S. TR -55 Method 1-1ydrographs: RENZ2 -AX, hydrograph for 50 -year stone cJ 1 Ox areas RENZ2 -BX, hydrograph for 100 -year stone a 10x areas RENZ2 -50, hydrograph for 50 -year stone @ actual areas (RENZ2 -AX x 0.10) RENZ2 -100, hydrograph for 100 -year stone actual areas (RENZ2 -BX x 0.10) RATIONAL 'FORMULA HYDROLOGY 'il DATE _= 4/12/91 DESIGNER = D.H.C. . Vh FRC1JECt NNME = RIDGEMONT ESTATES NORTH - 5TH ADDITION SUDAREA 1, = 1.12 ACRES TCJTAL AREA = 11.42 ACRE'S COMPOSITE RUNOFF CCJEFFICIENT = .227555166=75 OVERLAND FLOW VALUES .C't = ,15 L - = 1500 N'.= .4 S' _ .16 CHANNEL_ FLOP) VALUES 1 DESCRIPTIOPJ EXISTING FLOW FROri OLD "RIDGEMONT ESTATES -' 700 Z1 = Z2,= _ N 0. B 0 S9 = .07 TD = .615 CONFUTED VALUES • DUR = 14.10 150 = 2.57 050 = 6.55 OA ._ 6.54 BASIN RENZ-1 9UC:IREA 1 RUNOFF COEFFICIENT 7= .9 SUBAREA 2 RUNOFF COEFFICIENT = .15 -12 Benz 1 . KcrJ Quick TR -55 Ver.5.45 S/N:1315460151 Executed: 09:30:55 04 -26 -1994 Composite Area: Renz -1 Ridgemont Estates North - 3rd Addition Basin: Renz -1 flow via ditch from south to energy dissipator in 5th Addition RUNOFF CURVE NUMBER DATA SURFACE DESCRIPTION AREA (acres) CN Impervious (roads, houses) 1.12 98 Pervious (lawns, landscaping) 9.01 61 Pervious (undeveloped slopes) 1.29 66 COMPOSITE AREA - - -> 11.42 65.2 ( 65 ) I -13 Renzi Kcr4 Quick TR -55 Ver.5.45 S/N:1315460151 Executed: 10:21:33 04 -26 -1994 Composite Area: Renz -1 Ridgemont Estates North - 3rd Addition Basin: Renz -1 * NOTE: areas = l0x to increase accuracy hydrographs = 0.10x (back to original) RUNOFF CURVE NUMBER DATA SURFACE DESCRIPTION Impervious (roads, houses) Pervious (lawns, landscaping) Pervious (undeveloped slopes) AREA (acres) 11.20 90.10 12.90 CN 98 61 66 COMPOSITE AREA - - -> 114.20 65.2 ( 65 ) 1 -14 Quick TR -55 Ver.5.45 S/N:1315460151 Executed: 09:48:25 04 -26 -1994 RENZ1.TCT Ridgemont Estates North - 3rd Addition Basin: Renz -1 Flow path: from hill to SE, via 23rd Ct, ditch to energy dissipator Note: flow time in pipe is negligible, thus excluded SHEET FLOW (Applicable to Tc only) Segment ID Surface description Manning's roughness coeff., n Flow length, L (total c or = 300) Two -yr 24 -hr rainfall, P2 Land slope, s 0.8 .007 * (n *L) T = 0.5 0.4 P2 * s SHALLOW CONCENTRATED FLOW Segment ID Surface (paved or unpaved)? Flow length, L Watercourse slope, s 0.5 Avg.V = Csf * (s) where: Unpaved Csf = 16.1345 Paved Csf = 20.3282 T = L / (3600 *V) CHANNEL FLOW Segment ID Cross Sectional Flow Area, a Wetted perimeter, Pw Hydraulic radius, r = a /Pw Channel slope, s Manning's roughness coeff., n V 2/3 1/2 1.49 * r * s Flow length, L n T = L / (3600 *V) Tc COMPUTATIONS FOR: Basin Renz -1 hilltop undeveloped 0.0500 ft 10.0 in 1.400 ft /ft 0.0630 hrs 0.01 NWslope Unpaved ft 1500.0 ft /ft 0.1600 ft /s 6.4538 hrs 0.06 ditch sq.ft 1.15 ft 3.92 ft 0.293 ft /ft 0.0700 0.0300 ft /s 5.8017 ft 500 hrs 0.02 TOTAL TIME (hrs) T = 0.01 T = 0.06 T = 0.02 0. 10 I-15 a 0' t t Quick TR -55 Version: 5.45 S /N: 1315460151 Page 1 Return Frequency: 50 years Subarea Description t Renz -1 ' Renz -1 TR -55 TABULAR HYDROGRAPH METHOD Type II. Distribution (24 hr. Duration Storm) Executed: 04 -26 -1994 10:31:50 Watershed file: - -> RENZ1 .MOP Hydrograph file: - -> RENZ1- AX.HYD =/so yc P a ch Aga15 Ridgemont Estates North - 3rd Addition Offsite drainage from SE of plat via existing /proposed ditches 50 -year and 100 -year storm return frequency NOTE: Peak discharge is 10x (as per 10x RCN values) »» Input Parameters Used to Compute Hydrograph <<<< AREA CN Tc * Tt Precip. I Runoff Ia /p (acres) (hrs) (hrs) (in) I (in) input /used 114.20 65.0 0.10 0.00 2.40 I 0.26 I.45 .45 I * Travel time from subarea outfall to composite watershed outfall point. " I -- Subarea where user specified interpolation between Ia /p tables. Total area = 114.20 acres or 0.1784 sq.mi Peak discharge = 30 cfs »» Computer Modifications of Input Parameters <<<<< Input Values Rounded Values Ia /p Subarea Tc * Tt Tc * Tt Interpolated Ia /p Description (hr) (hr) (hr) (hr) (Yes /No) Messages 0.10 0.00 * * ** Yes * Travel time from subarea outfall to composite watershed outfall point. ** Tc & Tt are available in the hydrograph tables. I -IG Quick TR -55 Version: 5.45 S /N: 1315460151 Page 2 Return Frequency: 50 years TR -55 TABULAR HYDROGRAPH METHOD Type II. Distribution 1(24 hr. Duration Storm) Executed: 04 -26 -1994 10:31:50 Watershed file: - -> RENZ1 .MOP Hydrograph file: - -> RENZ1- AX.IIYD Ridgemont Estates North - 3rd Addition Offsite drainage from SE of plat via existing /proposed ditches 50 -year and 100 -year storm return frequency NOTE: Peak discharge is 10x (as per 10x RCN values) »» Summary of Subarea Times to Peak «« Subarea Renz -1 Composite Watershed Peak Discharge at Time to Peak at Composite Outfall Composite Outfall (cfs) (hrs) 30 12.1 3Q 12.1 I-17 1 Quick TR -55 Version: 5.45 S /N: 1315460151 Page 3 Return Frequency: 50 years TR -55 TABULAR HYDROGRAPH METHOD ' Type II. Distribution (24 hr. Duration Storm) Executed: 04 -26 -1994 10:31:50 ' Watershed file: - -> RENZ1 .MOP Hydrograph file: - -> RENZ1- AX.HYD Ridgemont Estates North - 3rd Addition Offsite drainage from SE of plat via existing /proposed ditches 50 -year and 100 -year storm return frequency NOTE: Peak discharge is 10x (as per 10x RCN values) ' Composite Hydrograph Summary (cfs) ' Total (cfs) 0 0 0 2 9 30 19 9 8 1 Subarea Description i 1 1 1 Subarea 11.0 11.3 11.6 11.9 12.0 12.1 12.2 12.3 12.4 ' Description hr hr hr • hr hr hr hr hr hr Renz -1 0 0 0 2 9 30 19 9 8 Renz -1 I . Total (cfs) 12.5 12.6 12.7 12.8 13.0 13.2 13.4 13.6 13.8 hr hr hr hr hr hr hr hr hr 7 6 5 5 4 4 4 3 3 7 6 5 5 4 4 4 3 3 Subarea 14.0 14.3 14.6 15.0 15.5 16.0 16.5 17.0 17.5 Description hr hr hr hr hr hr hr hr hr IIRenz-1 3 3 3 2 2 2 2 2 2 ' Total (cfs) 3 3 3 2 2 2 2 2 2 Subarea 18.0 19.0 • 20.0 22.0 26.0 Description hr hr hr hr hr 1 Renz -1 Total (cfs) 2 1 1 1 0 2 1 1 1 0 1 -Id 1 Quick TR -55 Version: 5.45 S /N: 1315460151 Page 4 Return Frequency: 50 years 1 .1 1 1 1 1 1 1 1 1 1 1 `1 _1 1 .1 TR -55 TABULAR HYDROGRAPH METHOD Type II. Distribution (24 hr. Duration Storm) Executed: 04 -26 -1994 10:31:50 Watershed file: - -> RENZ1 .MOP Hydrograph file: - -> RENZ1- AX.HYD Ridgemont Estates North - 3rd Addition Offsite drainage from SE of plat via existing /proposed ditches 50 -year and 100 -year storm return frequency NOTE: Peak discharge is 10x (as per 10x RCN values) Time Flow Time Flow (hrs) (cfs) (hrs) (cfs) 11.0 0 14.8 2 11.1 0 14.9 2 11.2 0 15.0 2 11.3 • 0 15.1 2 11.4 0 15.2 2 11.5 0 15.3 2 11.6 0 15.4 2 11.7 1 15.5 2 11.8 1 15.6 2 11.9 2 15.7 2 12.0 9 15.8 2 12.1 30 15.9 2 12.2 19 - 16.0 2 12.3 9 16.1 2 12.4 8 16.2 2 12.5 7 16.3 2 12.6 6 16.4 2 12.7 5 16.5 2 12.8 5 16.6 2 12.9 4 16.7 2 13.0 4 16.8 2 13.1 4 16.9 2 13.2 4 17.0 2 13.3 4 17.1 2 13.4 4 17.2 2 13.5 4 17.3 2 13.6 3 17.4 2 13.7 3 17.5 2 13.8 3 17.6 2 13.9 3 17.7 2 14.0 3 17.8 2 14.1 3 17.9 2 14.2 3 18.0 2 14.3 3 18.1 2 14.4 3 18.2 2 14.5 3 18.3 2 I iy 14.6 3 18.4 2 14.7 3 18.5 2 1 -9n 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Quick TR -55 Version: 5.45 S /N: 1315460151 Page 5 Return Frequency: 50 years TR -55 TABULAR HYDROGRAPH METHOD Type II. Distribution (24 hr. Duration Storm) Executed: 04 -26 -1994 10:31:50 Watershed file: - -> RENZ1 .MOP Hydrograph file: - -> RENZ1- AX.HYD Ridgemont Estates North - 3rd Addition Offsite drainage from SE of plat via existing /proposed ditches 50 -year and 100 -year storm return frequency NOTE: Peak discharge is 10x (as per 10x RCN values) Time Flow Time Flow (hrs) (cfs) (hrs) (cfs) 18.6 1 22.4 1 18.7 1 22.5 1 18.8 1 22.6 1 18.9 1 22.7 1 19.0 1 22.8 1 19.1 1 22.9 1 19.2 1 23.0 3. 19.3 1 23.1 1 19.4 1 23.2 1 19.5 1 23.3 1 19.6 1 23.4 1 19.7 1 23.5 1 19.8 1 23.6 1 19.9 1 23.7 1 20.0 1 23.8 1 20.1 1 23.9 1 20.2 1 24.0 0 20.3 1 24.1 0 20.4 1 24.2 0 20.5 1 24.3 0 20.6 1 24.4 0 20.7 1 24.5 0 20.8 1 24.6 0 20.9 1 24.7 0 21.0 1 24.8 0 21.1 1 24.9 0 21.2 1 25.0 0 21.3 1 25.1 0 21.4 1 25.2 0 21.5 1 25.3 0 21.6 1 25.4 0 21.7 1 25.5 0 21.8 1 25.6 0 21.9 1 25.7 0 22.0 1 25.8 0 22.1 1 25.9 0 22.2 1 22.3 1 1- 21 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Quick TR -55 Version: 5.45 S /N: 1315460151 Page 1 Return Frequency: 100 years Subarea Description ' Renz -1 Renz -1 TR -55 TABULAR HYDROGRAPH METHOD Type II. Distribution (24 hr. Duration Storm) Executed: 07 -01 -1994 10:22:32 Watershed file: - -> RENZ1 .MOP Hydrograph file: - -> RENZ1- BX.HYD = lion - veAr,G lox. netASI Ridgemont Estates North - 3rd Addition Offsite drainage from SE of plat via existing /proposed ditches 50 -year and 100 -year storm return frequency NOTE: Peak discharge is 10x (as per 10x RCN values) »» Input Parameters Used to Compute Hydrograph «« AREA CN Tc * Tt Precip. I Runoff Ia /p (acres) (hrs) (hrs) (in) (in) input /used 114.20 65.0 0.10 0.00 3.00 I 0.51 I.36 .36 * Travel time from subarea outfall to composite watershed outfall point. I I -- Subarea where user specified interpolation between Ia /p tables. Total area = 114.20 acres or 0.1784 sq.mi Peak discharge = 74 cfs »» Computer Modifications of Input Parameters ««< Input Values Rounded Values Ia /p ' Subarea Tc * Tt Tc * Tt Interpolated Ia /p Description (hr) (hr) (hr) (hr) (Yes /No) Messages 0.10 0.00 ** ** Yes ' * Travel time from subarea outfall to composite watershed outfall point. ** Tc & Tt are available in the hydrograph tables. 1 -22 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Quick TR -55 Version: 5.45 S /N: 1315460151 Page 2 Return Frequency: 100 years Subarea Renz -1 Composite Watershed TR -55 TABULAR HYDROGRAPH METHOD Type II. Distribution (24 hr. Duration Storm) Executed: 07 -01 -1994 10:22:32 Watershed file: - -> RENZ1 .MOP Hydrograph file: - -> RENZ1- BX.HYD Ridgemont Estates North - 3rd Addition Offsite drainage from SE of plat via existing /proposed ditches 50 -year and 100 -year storm return frequency NOTE: Peak discharge is 10x (as per 10x RCN values) »» Summary of Subarea Times to Peak «« Peak Discharge at Time to Peak at Composite Outfall Composite Outfall (cfs) (hrs) 74 12.1 74 12.1 1 1 1 1 1 1 1 Composite Hydrograph Summary (cfs) 1 1 1 1 Quick TR -55 Version: 5.45 S /N: 1315460151 Page 3 Return Frequency: 100 years Subarea ' Description Renz -1 Total (cfs) Subarea Description Renz -1 ' Total (cfs) Subarea Description Renz -1 ' Total (cfs) Subarea 18.0 19.0 20.0. 22.0 26.0 Description hr hr hr hr hr Renz -1 ' Total (cfs) TR -55 TABULAR HYDROGRAPH METHOD Type II. Distribution (24 hr. Duration Storm) Executed: 07 -01 -1994 10:22:32 Watershed file: - -> RENZ1 .MOP Hydrograph file: - -> RENZ1- BX.HYD Ridgemont Estates North - 3rd Addition Offsite drainage from SE of plat via existing /proposed ditches 50 -year and 100 -year storm return frequency NOTE: Peak discharge is 10x (as per lox RCN values) 11.0 11.3 11.6 11.9 12.0 12.1 12.2 12.3 12.4 hr hr hr hr hr hr hr hr hr 0 0 0 10 38 74 44 19 16 0 0 0 10 38 74 44 19 16 12.5 12.6 12.7 12.8 13.0 13.2 13.4 13.6 13.8 hr hr hr hr hr hr hr hr hr 14 12 10 9 8 7 7 6 6 14 12 10 9 8 7 7 6 6 14.0 14.3 14.6 15.0 15.5 16.0 16.5 17.0 17.5 hr hr hr hr hr hr hr hr hr 5 5 5 4 4 3 3 3 3 5 5 5 4 4 3 3 3 3 3 2 2 2 0 3 2 2 2 0 1 1 Quick TR -55 Version: 5.45 S /N: 1315460151 Page 4 Return Frequency: 100 years 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 TR -55 TABULAR HYDROGRAPH METHOD Type II. Distribution (24 hr. Duration Storm) Executed: 07 -01 -1994 10:22:32 Watershed file: - -> RENZ1 .MOP Hydrograph file: - -> RENZ1- BX.HYD Ridgemont Estates North - 3rd Addition Offsite drainage from SE of plat via existing /proposed ditches 50 -year and 100- year.storm return frequency NOTE: Peak discharge is 10x (as per 10x RCN values) Time Flow Time Flow (hrs) (cfs) (hrs) (cfs) 11.0 0 14.8 4 11.1 0 14.9 4 11.2 0 15.0 4 11.3 0 15.1 4 11.4 0 15.2 4 11.5 0 15.3 4 11.6 0 15.4 4 11.7 3 15.5 4 11.8 7 15.6 4 11.9 10 15.7 4 12.0 38 15.8 3 12.1 74 15.9. 3 12.2 44 16.0 3 12.3 19 16.1 3 12.4 16 16.2 3 12.5 14 16.3 3 12.6 12 16.4 3 12.7 10 16.5 3 12.8 9 16.6 3 12.9 8 16.7 3 13.0 8 16.8 3 13.1 8 16.9 3 13.2 7 17.0 3 13.3 7 17.1 3 13.4 7 17.2 3 13.5 7 17.3 3 13.6 6 17.4 3 13.7 6 17.5 3 13.8 6 17.6 3 13.9 6 17.7 3 14.0 5 17.8 3 14.1 5 17.9 3 14.2 5 18.0 3 14.3 5 18.1 3 14.4 5 ].8.2 3 14.5 5 18.3 3 1 -?5 14.6 5 18.4 3 14.7 5 18.5 2 1 -16 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Quick TR -55 Version: 5.45 S /N: 1315460151 Page 5 Return Frequency: 100 years TR -55 TABULAR HYDROGRAPH METHOD Type 1T. Distribution (24 hr. Duration Storm) Executed: 07 -01 -1994 10:22:32 Watershed file: - -> RENZ1 .MOP Hydrograph file: - -> RENZ1 HX.HYD Ridgemont Estates North - 3rd Addition Offsite drainage from SE of plat via existing /proposed ditches 50 -year and 100 -year storm return frequency NOTE: Peak discharge is 10x (as per 10x RCN values) Time Flow Time Flow (hrs) (cfs) (hrs) (cfs) 18.6 2 22.4 2 18.7 2 22.5 2 18.8 2 22.6 2 18.9 2 22.7 2 19.0 2 22.8 2 19.1 2 22.9 2 19.2 2 23.0 2 19.3 2 23.1 1 19.4 2 23.2 1 19.5 2 23.3 1 19.6 2 23.4 1 19.7 2 23.5 1 19.8 2 23.6 1 19.9 2 23.7 1 20.0 2 23.8 1 20.1 2 23.9 1 20.2 2 24.0 1 20.3 2 24.1 1 20.4 2 24.2 1 20.5 2 24.3 1 20.6 2 24.4 1 20.7 2 24.5 1 20.8 2 24.6 1 20.9 2 24.7 1 21.0 2 24.8 1 21.1 2 24.9 1 21.2 2 25.0 0 21.3 2 25.1 0 21.4 2 25.2 0 21.5 2 25.3 0 21.6 2 25.4 0 21.7 2 25.5 0 21.8 2 25.6 0 21.9 2 25.7 0 22.0 2 25.8 0 22.1 2 25.9 0 22.2 2 22.3 2 1 1- 1 _ * * * ** Multiply Hydrograph by Constant * * * ** 1- 1_ 1- 1-• 1- 1- 1� 1' 1- 1- 1' 1- 1' 1' 1- 1" POND -2 Version: 5.15 S /N: 1295160123 Page 1 Executed 04 -26 -1994 10:51:32 Unit .HYD File: RENZ1- AX.HYD Output Hydrograph: RENZ1- 50.HYD Multiplier Constant: .1 TIME Unit Multiplier Output Hydrograph (hrs) Ordinates Constant (cfs) 11.00 11.10 11.20 11.30 11.40 11.50 11.60 11.70 11.80 11.90 12.00 12.10 12.20 12.30 12.40 12.50 12.60 12.70 12.80 12.90 13.00 13.10 13.20 13.30 13.40 13.50 13.60 13.70 13.80 13.90 14.00 14.10 14.20 14.30 14.40 14.50 14.60 14.70 14.80 14.90 15.00 15.10 0.00 x 0.100 0.00 x 0.100 0.00 x 0.100 0.00 x 0.100 0.00 x 0.100 0.00 x 0.100 0.00 x 0.100 1.00 x 0.100 1.00 x 0.100 2.00 x 0.100 9.00 x 0.100 30.00 x 0.100 19.00 x 0.100 9.00 x 0.100 8.00 x 0.100 7.00 x 0.100 6.00 x 0.100 5.00 x 0.100 5.00 x 0.100 4.00 x 0.100 4.00 x 0.100 4.00 x 0.100 4.00 x 0.100 4.00 x 0.100 4.00 x 0.100 4.00 x 0.100 3.00 x 0.100 3.00 x 0.100 3.00 x 0.100 3.00 x 0.100 3.00 x 0.100 3.00 x 0.100 3.00 x 0.100 3.00 x 0.100 3.00 x 0.100 3.00 x 0.100 3.00 x 0.100 3.00 x 0.100 2.00 x 0.100 2.00 x 0.100 2.00 x 0.100 2.00 x 0.100 gn< u.“ 1 To itrAi 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.10 0.10 0.20 0.90 3.00 <- Q5o 1.90 0.90 0.80 0.70 0.60 0.50 0.50 0.40 0.40 0.40 0.40 0.40 0.40 0.40 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.20 0.20 0.20 0.20 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 POND -2 Version: 5.15 S /N: 1295160123 Page 2 Executed 04 -26 -1994 10:51:32 * * * ** Multiply Hydrograph by Constant * * * ** Unit .HYD File: RENZ1- AX.HYD Output Hydrograph: RENZ1- 50.HYD Multiplier Constant: .1 TIME Unit Multiplier Output Hydrograph (hrs) Ordinates Constant . (cfs) 15.20 2.00 x 0.100 = 0.20 15.30 2.00 x 0.100 = 0.20 15.40 2.00 x 0.100 = 0.20 15.50 2.00 x 0.100 = 0.20 15.60 2.00 x 0.100 = 0.20 15.70 2.00 x 0.100 = 0.20 15.80 2.00 x 0.100 = 0.20 15.90 2.00 x 0.100 = 0.20 16.00 2.00 x 0.100 = 0.20 16.10 2.00 x 0.100 = 0.20 16.20 2.00 x 0.100 = 0.20 16.30 2.00 x 0.100 = 0.20 16.40 2.00 x 0.100 = 0.20 16.50 2.00 x 0.100 = 0.20 16.60 2.00 x 0.100 = 0.20 16.70 2.00 x 0.100 = 0.20 16.80 2.00 x 0.100 = 0.20 16.90 2.00 x 0.100 = 0.20 17.00 2.00 x 0.100 = 0.20 17.10 2.00 x 0.100 = 0.20 17.20 2.00 x 0.100 = 0.20 17.30 2.00 x 0.100 = 0.20 17.40 2.00 x 0.100 = 0.20 17.50 2.00 x 0.100 = 0.20 17.60 2.00 x 0.100 = 0.20 17.70 2.00 x 0.100 = 0.20 17.80 2.00 x 0.100 = 0.20 17.90 2.00 x 0.100 = 0.20 18.00 2.00 x 0.100 = 0.20 18.10 2.00 x 0.100 = 0.20 18.20 2.00 x 0.100 = 0.20 18.30 2.00 x 0.100 = 0.20 18.40 2.00 x 0.100 = 0.20 18.50 2.00 x 0.100 = 0.20 18.60 1.00 x 0.100 = 0.10 18.70 1.00 x 0.100 = 0.10 18.80 1.00 x 0.100 = 0.10 18.90 1.00 x 0.100 = 0.10 19.00 1.00 x 0.100 = 0.10 19.10 1.00 x 0.100 = 0.10 19.20 1.00 x 0.100 = 0.10 1-2_5 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 POND -2 Version: 5.15 S /N: 1295160123 Page 3 Executed 04 -26 -1994 10:51:32 * * * ** Multiply Hydrograph by Constant * * * ** Unit .HYD File: RENZ1- AX.HYD Output Hydrograph: RENZ1- 50.HYD Multiplier Constant: :1 TIME Unit Multiplier Output Hydrograph (hrs) Ordinates Constant (cfs) 19.30 1.00 x 0.100 = 0.10 19.40 1.00 x 0.100 = 0.10 19.50 1.00 x 0.100 = 0.10 19.60 1.00 x 0.100 = 0.10 19.70 1.00 x 0.100 = 0.10 19.80 1.00 x 0.100 = 0.10 19.90 1.00 x 0.100 = 0.10 20.00 1.00 x 0.100 = 0.10 20.10 1.00 x 0.100 = 0.10 20.20 1.00 x 0.100 = 0.10 20.30 1.00 x 0.100 = 0.10 20.40 1.00 x 0.100 = 0.10 20.50 1.00 x 0.100 = 0.10 20.60 1.00 x 0.100 = 0.10 20.70 1.00 x 0.100 = 0.10 20.80 1.00 x 0.100 = 0.10 20.90 1.00 x 0.100 = 0.10 21.00 1.00 x 0.100 = 0.10 21.10 1.00 x 0.100 = 0.10 21.20 1.00 x 0.100 = 0.10 21.30 1.00 x 0.100 = 0.10 21.40 1.00 x 0.100 = 0.10 21.50 1.00 x 0.100 = 0.10 21.60 1.00 x 0.100 = 0.10 21.70 1.00 x 0.100 = 0.10 21.80 1.00 x 0.100 = 0.10 21.90 1.00 x 0.100 = 0.10 22.00 1.00 x 0.100 = 0.10 22.10 1.00 x 0.100 = 0.10 22.20 1.00 x 0.100 = 0.10 22.30 1.00 x 0.100 = 0.10 22.40 1.00 x 0.100 = 0.10 22.50 1.00 x 0.100 = 0.10 22.60 1.00 x 0.100 = 0.10 22.70 1.00 x 0.100 = 0.10 22.80 1.00 x 0.100 = 0.10 22.90 1.00 x 0.100 = 0.10 23.00 1.00 x 0.100 = 0.10 23.10 1.00 x 0.100 = 0.10 23.20 1.00 x 0.100 = 0.10 23.30 1.00 x 0.100 = 0.10 1 -30 POND -2 Version: 5.15 S /N: 1295160123 Executed 04 -26 -1994 10:51:32 * * * ** Multiply Hydrograph by Constant * * * ** Unit .HYD File: RENZ1- AX.HYD Output Hydrograph: RENZ1- 50.HYD Multiplier Constant: '.1 Page 4 TIME Unit Multiplier. Output Hydrograph (hrs) Ordinates Constant (cfs) 23.40 1.00 x 0.100 = 0.10 23.50 1.00 x 0.100 = 0.10 23.60 1.00 x 0.100 = 0.10 23.70 1.00 x 0.100 = 0.10 23.80 1.00 x 0.100 = 0.10 23.90 1.00 x 0.100 = 0.10 24.00 0.00 x 0.100 = 0.00 24.10 0.00 x 0.100 = 0.00 24.20 0.00 x 0.100 = 0.00 24.30 0.00 x 0.100 = 0.00 24.40 0.00 x 0.100 = 0.00 24.50 0.00 x 0.100 = 0.00 24.60 0.00 x 0.100 = 0.00 24.70 0.00 x 0.100 = 0.00 24.80 0.00 x 0.100 - 0.00 24.90 0.00 x 0.100 = 0.00 25.00 0.00 x 0.100 = 0.00 25.10 0.00 x 0.100 = 0.00 25.20 0.00 x 0.100 = 0.00 25.30 0.00 x 0.100 = 0.00 25.40 0.00 x 0.100 = 0.00 25.50 0.00 x 0.100 = 0.00 25.60 0.00 x 0.100 = 0.00 25.70. 0.00 x 0.100 = 0.00 25.80 0.00 x 0.100 = 0.00 25.90 0.00 x 0.100 = 0.00 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 POND -2 Version: 5.15 S /N: 1295160123 Page 1 Executed 07 -01 -1994 10:50:39 * * * ** Multiply Hydrograph by Constant * * * ** Unit .HYD File: RENZ1- BX.HYD Output Hydrograph: RENZ1- 00.HYD Multiplier Constant: .1 SA51N RENZ 100 -YE AR, "ACTUAL AREA TIME Unit Multiplier Output Hydrograph (hrs) Ordinates Constant (cfs) 11.00 0.00 x 0.100 = 0.00 11.10 0.00 x 0.100 = 0.00 11.20 0.00 x 0.100 = 0.00 11.30 0.00 x 0.100 = 0.00 11.40 0.00 x 0.100 = 0.00 11.50 0.00 x 0.100 = 0.00 11.60 0.00 x 0.100 = 0.00 11.70 3.00 x 0.100 = 0.30 11.80 7.00 x 0.100 = 0.70 11.90 10.00 x 0.100 = 1.00 12.00 38.00 x 0.100 = 3.80 12.10 74.00 x 0.100 = 7.40 t Pico 12.20 44.00 x 0.100 = 4.40 12.30 19.00 x 0.100 = 1.90 12.40 16.00 x 0.100 = 1.60 12.50 14.00 x 0.100 = 1.40 12.60 12.00 x 0.100 = 1.20 12.70 10.00 x 0.100 = 1.00 12.80 9.00 x 0.100 = 0.90 12.90 8.00 x 0.100 = 0.80 13.00 8.00 x 0.100 = 0.80 13.10 8.00 x 0.100 = 0.80 13.20 7.00 x 0.100 = 0.70 13.30 7.00 x 0.100 = 0.70 13.40 7.00 x 0.100 = 0.70 13.50 7.00 x 0.100 = 0.70 13.60 6.00 x 0.100 = 0.60 13.70 6.00 x 0.100 = 0.60 13.80 6.00 x 0.100 = 0.60 13.90 6.00 x 0.100 = 0.60 14.00 5.00 x 0.100 = 0.50 14.10 5.00 x 0.100 = 0.50 14.20 5.00 x 0.100 = 0.50 14.30 5.00 x 0.100 = 0.50 14.40 5.00 x 0.100 = 0.50 14.50 5.00 x 0.100 = 0.50 14.60 5.00 x 0.100 = 0.50 14.70 5.00 x 0.100 = 0.50 14.80 4.00 x 0.100 = 0.40 14.90 4.00 x 0.100 = 0.40 15.00 4.00 x 0.100 = 0.40 15.10 4.00 x 0.100 = 0.40 1 -3% POND -2 Version: 5.15 S /N: 1295160123 Page 2 Executed 07 -01 -1994 10:50:39 * * * ** Multiply Hydrograph by Constant * * * ** Unit .HYD File: RENZ1- BX.HYD Output Hydrograph: RENZ1- 00.HYD Multiplier Constant: .1 TIME Unit Multiplier Output Hydrograph (hrs) Ordinates Constant (cfs) 15.20 4.00 x 0.100 = 0.40 15.30 4.00 x 0.100 = 0.40 15.40 4.00 x 0.100 = 0.40 15.50 4.00 x 0.100 = 0.40 15.60 4.00 x 0.100 = 0.40 15.70 4.00 x 0.100 = 0.40 15.80 3.00 x 0.100 = 0.30 15.90 3.00 x 0.100 = 0.30 16.00 3.00 x 0.100 = 0.30 16.10 3.00 x 0.100 = 0.30 16.20 3.00 x 0.100 = 0.30 16.30 3.00 x 0.100 = 0.30 16.40 3.00. x 0.100 = 0.30 16.50 3.00 x 0.100 = 0.30 16.60 3.00 x 0.100 = 0.30 16.70 3.00 x 0.100 = 0.30 16.80 3.00 x 0.100 = 0.30 16.90 3.00 x 0.100 = 0.30 17.00 3.00 x 0.100 = 0.30 17.10 3.00 x 0.100 = 0.30 17.20 3.00 x 0.100 = 0.30 17.30 3.00 x 0.100 = 0.30 17.40 3.00 x 0.100 = 0.30 17.50 3.00 x 0.100 = 0.30 17.60 3.00 x 0.100 = 0.30 17.70 3.00 x 0.100 = 0.30 17.80 3.00 x 0.100 = 0.30 17.90 3.00 x 0.100 = 0.30 18.00 3.00 x 0.100 = 0.30 18.10 3.00 x 0.100 = 0.30 18.20 3.00 x 0.100 = 0.30 18.30 3.00 x 0.100 = 0.30 18.40 3.00 x 0.100 = 0.30 18.50 2.00 x 0.100 = 0.20 18.60 2.00 x 0.100 = 0.20 18.70 2.00 x 0.100 = 0.20 18.80 2.00 x 0.100 = 0.20 18.90 2.00 x 0.100 = 0.20 19.00 2.00 x 0.100 = 0.20 19.10 2.00 x 0.100 = 0.20 19.20 2.00 x 0.100 = 0.20 I -33 1 1 * * * ** Multiply Hydrograph by Constant * * * ** 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 POND -2 Version: 5.15 S /N: 1295160123 Page 3 Executed 07 -01 -1994 10:50:39 Unit .HYD File: RENZ1- BX.HYD Output Hydrograph: RENZ1- 00.HYD Multiplier Constant: .1 TIME Unit Multiplier Output Hydrograph (hrs) Ordinates Constant (cfs) 19.30 2.00 x 0.100 = 0.20 19.40 2.00 x 0.100 = 0.20 19.50 2.00 x 0.100 = 0.20 19.60 2.00 x 0.100 = 0.20 19.70 2.00 x 0.100 = 0.20 19.80 2.00 x 0.100 = 0.20 19.90 2.00 x 0.100 = 0.20 20.00 2.00 x 0.100 = 0.20 20.10 2.00 x 0.100 = 0.20 20.20 2.00 x 0.100 = 0.20 20.30 2.00 x 0.100 = 0.20 20.40 2.00 x 0.100 = 0.20 20.50 2.00 x 0.100 = 0.20 20.60 2.00 x 0.100 = 0.20 20.70 2.00 x 0.100 = 0.20 20.80 2.00 x 0.100 = 0.20 20.90 2.00 x 0.100 = 0.20 21.00 2.00 x 0.100 = 0.20 21.10 2.00 x 0.100 = 0.20 21.20 2.00 x 0.100 = 0.20 21.30 2.00 x 0.100 = 0.20 21.40 2.00 x 0.100 = 0.20 21.50 2.00 x 0.100 = 0.20 21.60 2.00 x 0.100 = 0.20 21.70 2.00 x 0.100 = 0.20 21.80 2.00 x 0.100 = 0.20 21.90 2.00 x 0.100 = 0.20 22.00 2.00 x 0.100 = 0.20 22.10 2.00 x 0.100 = 0.20 22.20 2.00 x 0.100 = 0.20 22.30 2.00 x 0.100 = 0.20 22.40 2.00 x 0.100 = 0.20 22.50 2.00 x 0.100 = 0.20 22.60 2.00 x 0.100 = 0.20 22.70 2.00 x 0.100 = 0.20 22.80 2.00 x 0.100 = 0.20 22.90 2.00 x 0.100 = 0.20 23.00 2.00 x 0.100 = 0.20 23.10 1.00 x 0.100 = 0.10 23.20 1.00 x 0.100 = 0.10 23.30 1.00 x 0.100 = 0.10 1 -34 POND -2 Version: 5.15 S /N: 1295160123 Page 4 Executed 07 -01 -1994 10:50:39 * * * ** Multiply Hydrograph by Constant * * * ** Unit .HYD File: RENZ1- BX.HYD Output Hydrograph: RENZ1- 00.HYD Multiplier Constant: .1 TIME Unit. Multiplier . Output Hydrograph (hrs) Ordinates • Constant (cfs) 23.40 1.00 x 0.100 = 0.10 23.50 1.00 x 0.100 = 0.10 23.60 1.00 x 0.100 = 0.10 23.70 1.00 x 0.100 = 0.10 23.80 1.00 x 0.100 = 0.10 23.90 1.00 x 0.100 = 0.10 24.00 1.00 x 0.100 = 0.10 24.10 1.00 x 0.100 = 0.10 24.20 1.00 x 0.100 = 0.10 24.30 1.00 x 0.100 = 0.10 24.40 1.00 x 0.100 = 0.10 24.50 1.00 x 0.100 = 0.10 24.60 1.00 x 0.100 = 0.10 24.70 1.00 x 0.100 = 0.10 24.80 1.00 x 0.100 = 0.10 24.90 1.00 x 0.100 = 0.10 25.00 0.00 x 0.100 = 0.00 25.10 0.00 x 0.100 = 0.00 25.20 0.00 x 0.100 = 0.00 25.30 0.00 x 0.100 = 0.00 25.40 0.00 x 0.100 = 0.00 25.50 0.00 x 0.100 = 0.00 25.60 0.00 x 0.100 = 0.00 25.70 0.00 x 0.100 = 0.00 25.80 0.00 x 0.100 = 0.00 25.90 0.00 x 0.100 = 0.00 I -35 11 11 11 11 DATE = 4/12/74 DESIGNER = D.H.C. I BASIN RENZ-2 PRO:IECT NAME = RIDGEMONT ESTATES NORTH ---5TH ADDITLON ill DESCRIPTION = EXISTING FLOW FROM OLD "RIDGEMONT ESTATES" SUBAREA 1 =4.:14 ACRES 01 5OBAREA 2 = 13.220 AGREE, TOTAL AREA = 19.512 ACRE5 ill OVERLAND FLOW VALUES 1 11 11 1 1 1 1 1 1 L 1100 N = = .03 /11 CHANNEL FLOW VALUES L =. 2000 Z1 Z2 = .172 N = .016 Et = 0 TD = .G7 CONFUTED VALUES DUR = 11.67 150 = 2.47 050 = IG.ST pn - 19.71 RATIONAL FORMULA HYDROLOGY SUBAREA 1 RUNOFF COEFFICIENT = .7 SUBAREA 2 RUNOFF COEFFICIENT = .15 I-3G COMPOSITE RUNOFF COEFFICIENT = .515566472214 Renz2. RCN Quick TR -55 Ver.5.45 S/N:1315460151 Executed: 09:33:34 04 -26 -1994 Composite Area: Renz -2 Ridgemont Estates North - 3rd Addition Basin: Renz -2 flow via ex'g. 15" culvert from east to energy dissipator in 5th Addition RUNOFF CURVE NUMBER DATA SURFACE DESCRIPTION Impervious (roads, houses) Pervious (lawns, landscaping) Pervious (undeveloped slopes) AREA (acres) 4.31 13.50 1.73 CN 98 61 66 COMPOSITE AREA - - -> 19.54 69.6 ( 70 ) 1 -37 rear. Z .R.C.N1 Quick TR -55 Ver.5.45 S/N:1315460151 Executed: 10:24:53 04 -26 -1994 Composite Area: Renz -2 Ridgemont Estates North - 3rd Addition Basin: Renz -2 * NOTE: areas = 10x to increase accuracy hydrographs = 0.10x (back to original) RUNOFF CURVE NUMBER DATA SURFACE DESCRIPTION AREA (acres) CN Impervious (roads, houses) 43.10 98 Pervious (lawns, landscaping) 135.00 61 Pervious (undeveloped slopes) 17.30 66 COMPOSITE AREA - - -> 195.40 69.6 ( 70 ) 1-38 Quick TR -55 Ver.5.45 S/N:1315460151 Executed: 09:54:25 04 -26 -1994 RENZ2.TCT Ridgemont Estates North - 3rd Addition Basin: Renz -2 Flow path: hilltop to Conklin to 22nd, 15" CMP to energy dissipator Note: flow time in pipe is negligible, thus excluded Tc COMPUTATIONS FOR: Basin Renz -2 SHEET FLOW (Applicable to Tc only) Segment ID Surface description Manning's roughness coeff., n Flow length, L (total < or = 300) Two -yr 24 -hr rainfall, P2 Land slope, s T = SHALLOW CONCENTRATED FLOW Segment ID Surface (paved or unpaved)? Flow length, L Watercourse slope, s 0.5 Avg.V = Csf * (s) where: Unpaved Csf = 16.1345 Paved Csf = 20.3282 T = L / (3600 *V) CHANNEL FLOW Segment ID Cross Sectional Flow Area, a Wetted perimeter, Pw Hydraulic radius, r = a /Pw Channel slope, s Manning's roughness coeff., n V = .007 * (n *L) 0.5 0.4 P2 * s 2/3 1/2 1.49 * r * s Flow length, L n T = L / (3600 *V) 0.8 hilltop undeveloped 0.0500 ft 10.0 in 1.400 ft /ft 0.0500 hrs 0.01 ft ft /ft Nwslope Unpaved 1100.0 0.0800 ft /s 4.5635 hrs 0.07 gutter sq.ft 1.96 ft 12.21 ft 0.161 ft /ft 0.0800 0.0160 ft /s 7.7799 ft 2000 hrs 0.07 TOTAL TIME (hrs) T = 0.01 2 = 0.07 = 0.07 0.15 1-35 1 1 - 1 Quick TR -55 Version: 5.45 S /N: 1315460151 Page 1 Return Frequency: 50 years TR -55 TABULAR HYDROGRAPH METHOD ' Type II. Distribution (24 hr. Duration Storm) 1 Executed: 04 -26 -1994 10:42 :00 Watershed file: - -> RENZ2 .MOP Hydrograph file: - -> RENZ2- AX.HYD So y M1 io 4 ^� "• 'Ridgemont Estates North - 3rd Addition Offsite drainage from SE of plat via existing /proposed ditches 50 -year and 100 -year storm return frequency ' NOTE: Peak discharge is 10x (as per 10x RCN values) ' »» Input Parameters Used to Compute Hydrograph «« Subarea AREA CN Tc * Tt Precip. I Runoff Ia /p Description (acres) (hrs) (hrs) (in) I (in) input /used ' Renz -2 195.40 70.0 0.20 0.00 2.40 I 0.41 I.36 .36 ' * Travel time from subarea outfall to composite watershed outfall point. I -- Subarea where user specified interpolation between Ia /p tables. Total area = 195.40 acres or 0.3053 sq.mi ' Peak discharge = 75 cfs »» Computer Modifications of Input Parameters ««< II Input Values Rounded Values Ia /p Subarea Tc * Tt Tc * Tt Interpolated Ia /p Description (hr) (hr) (hr) (hr) (Yes /No) Messages ' Renz -2 0.15 0.00 0.20 0.00 Yes 1 1 1 1 1 1 * Travel time from subarea outfall to composite watershed outfall point. Quick TR -55 Version: 5.45 S /N: 1315460151 Page 2 Return Frequency: 50 years TR -55 TABULAR HYDROGRAPH METHOD Type II. Distribution (24 hr. Duration Storm) Executed: 04 -26 -1994 10:42:00 Watershed file: - -> RENZ2 .MOP Hydrograph file: - -> RENZ2 - AX.HYD Ridgemont Estates North - 3rd Addition Offsite drainage from SE of plat via existing /proposed ditches 50 -year and 100 -year storm return frequency NOTE: Peak discharge is 10x (as per 10x RCN values) »» Summary of Subarea Times to Peak «« Subarea Renz -2 Composite Watershed Peak Discharge at Time to Peak at Composite Outfall Composite Outfall (cfs) (hrs) 75 12.2 75 12.2 1 -4I 1 1 1 1 1 1 1 Quick TR -55 Version: 5.45 S /N: 1315460151 Page 3 Return Frequency: 50 years Subarea Description enz -2 'Total (cfs) 1 1 Subarea Description Renz -2 ,Total (cfs) Subarea Description 'Renz -2 !'Total (cfs) Subarea 18.0 19.0. 20.0 22.0 26.0 Description hr hr hr hr hr 'Renz -2 'Total (cfs) TR -55 TABULAR HYDROGRAPH METHOD Type II. Distribution (24 hr.IDuration Storm) Executed: 04 -26 -1994 10:42:00 Watershed file: - -> RENZ2 .MOP Hydrograph file: - -> RENZ2- AX.HYD Ridgemont Estates North - 3rd Addition Offsite drainage from SE of plat via existing /proposed ditches 50 -year and 100 -year storm return frequency NOTE: Peak discharge is 10x (as per 10x RCN values) Composite Hydrograph Summary (cfs) 11.0 11.3 11.6 11.9 12.0 12.1 12.2 12.3 12.4 hr hr hr hr hr hr hr hr hr 0 0 0 3 16 51 75 56 32 0 0 0 3 16 51 75 56 32 12.5 12.6 12.7 12.8 13.0 13.2 13.4 13.6 13.8 hr hr hr hr hr hr hr hr hr 24 20 17 14 12 11 10 9 8 24 20 17 14 12 11 10 9 8 14.0 14.3 14.6 15.0 15.5 16.0 16.5 17.0 17.5 hr hr hr hr hr hr hr hr hr 7 7 6 6 5 5 4 4 4 7 7 6 6 5 5 4 4 4 4 3 3 3 0 4 3 3 3 0 II Quick TR -55 Version: 5.45 S /N: 1315460151 Page 4 Return Frequency: 50 years TR -55 TABULAR HYDROGRAPH METHOD Type II. Distribution (24 hr. Duration Storm) Executed: 04 -26 -1994 10:42:00 Watershed file: - -> RENZ2 .MOP Hydrograph file: - -> RENZ2- AX.HYD Ridgemont Estates North - 3rd Addition Offsite drainage from SE of plat via existing /proposed ditches 50 -year and 100 -year storm return frequency NOTE: Peak discharge is 10x (as per 10x RCN values) Time Flow Time Flow (hrs) (cfs) (hrs) (cfs) 11.0 0 14.8 6 11.1 0 14.9 6 11.2 0 15.0 6 11.3 0 15.1 6 11.4 0 15.2 6 11.5 0 15.3 5 11.6 0 15.4 5 11.7 1 15.5 5 11.8 2 15.6 5 11.9 3 15.7 5 12.0 16 15.8 5 12.1 51 15.9 5 12.2 75 16.0 5 12.3 56 16.1 5 12.4 32 16.2 5 12.5 24 16.3 4 12.6 20 16.4 4 12.7 17 16.5 4 12.8 14 16.6 4 12.9 13 16.7 4 13.0 12 16.8 4 13.1 12 16.9 4 13.2 11 17.0 4 13.3 10 17.1 4 13.4 10 17.2 4 13.5 10 17.3 4 13.6 9 17.4 4 13.7 8 17.5 4 13.8 8 17.6 4 13.9 8 17.7 4 14.0 7 17.8 4 14.1 7 17.9 4 14.2 7 18.0 4 14.3 7 18.1 4 14.4 7 18.2 4 14.5 6 18.3 4 -'+3 l 1 1 1 . 1- 1- 1. 1 . 1 . 1 1 1 1 1 1 1 1 14.6 6 18.4 4 14.7 6 18.5 4 1 -24 1 I Quick TR -55 Version: 5.45 S /N: 1315460151 Page 5 Return Frequency: 50 years 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 TR -55 TABULAR HYDROGRAPH METHOD Type II. Distribution (24 hr. Duration Storm) Executed: 04 -26 -1994 10:42:00 Watershed file: - -> RENZ2 .MOP Hydrograph file: - -> RENZ2- AX.HYD Ridgemont Estates North - 3rd Addition Offsite drainage from SE of plat via existing /proposed ditches 50 -year and 100 -year storm return frequency NOTE: Peak discharge is 10x (as per 10x RCN values) Time Flow Time Flow (hrs) (cfs) (hrs) (cfs) 18.6 3 22.4 3 18.7 3 22.5 3 18.8 3 22.6 3 18.9 3 22.7 2 19.0 3 22.8 2 19.1 3 22.9 2 19.2 3 23.0 2 19.3 3 23.1 2 19.4 3 23.2 2 19.5 3 23.3 2 19.6 3 23.4 2 19.7 3 23.5 2 19.8 3 23.6 2 19.9 3 23.7 2 20.0 3 23.8 2 20.1 3 23.9 2 20.2 3 24.0 2 20.3 3 24.1 1 20.4 3 24.2 1 20.5 3 24.3 1 20.6 3 24.4 1 20.7 3 24.5 1 20.8 3 24.6 1 20.9 3 24.7 1 21.0 3 24.8 1 21.1 3 24.9 1 21.2 3 25.0 1 21.3 3 25.1 1 21.4 3 25.2 1 21.5 3 25.3 1 21.6 3 25.4 0 21.7 3 25.5 0 21.8 3 25.6 0 21.9 3 25.7 0 22.0 3 25.8 0 22.1 3 25.9 0 22.2 3 22.3 3 -45 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Quick TR -55 Version: 5.45 S /N: 1315460151 Page 1 Return Frequency: 100 years Renz -2 I Renz -2 TR -55 TABULAR HYDROGRAPH METHOD Type II. Distribution (24 hr. Duration Storm) Executed: 07 -01 -1994 11:00:02 Watershed filer - -> RENZ2 .MOP Hydrograph file: - -> RENZ2- BX.HYD I i co -1E4R. 10 c AKEAS I Ridgemont Estates North - 3rd Addition Offsite drainage from SE of plat via existing /proposed ditches 50 -year and 100 -year storm return frequency NOTE: Peak discharge is 10x (as per 10x RCN values) »» Input Parameters Used to Compute Hydrograph «« Subarea AREA CN Tc * Tt Precip. I Runoff Ia /p Description (acres) (hrs) (hrs) (in) (in) input /used 195.40 70.0 0.20 0.00 3.00 I 0.71 I.29 .29 ' * Travel time from subarea outfall to composite watershed outfall point. I -- Subarea where user specified interpolation between Ia /p tables. Total area = 195.40 acres or 0.3053 sq.mi Peak discharge = 152 cfs >>>> Computer Modifications of Input Parameters ««< Input Values Rounded Values Ia /p Subarea Tc * Tt Tc * Tt Interpolated Ia /p Description (hr) (hr) (hr) (hr) (Yes /No) Messages 0.15 0.00 0.20 0.00 Yes * Travel time from subarea outfall to composite watershed outfall point. 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Quick TR -55 Version: 5.45 S /N: 1315460151 Page 2 Return Frequency: 100 years Executed: 07 -01 -1994 11:00:02 Watershed file: - -> RENZ2 .MOP Hydrograph file: - -> RENZ2- BX.HYD Ridgemont Estates North - 3rd Addition Offsite drainage from SE of plat via existing /proposed ditches 50 -year and 100 -year storm return frequency NOTE: Peak discharge is 10x (as per'10x RCN values) Subarea Renz -2 »» Summary of Subarea Times to Peak «« Composite Watershed TR -55 TABULAR HYDROGRAPH METHOD Type II. Distribution (24 hr. Duration Storm) Peak Discharge at Time to Peak at Composite Outfall Composite Outfall (cfs) (hrs) 152 12.2 152 12.2 1 -47 1 1 1 1 1 1 ' Composite Hydrograph Summary (cfs) ' Total (cfs) 1 ' Total (cfs) 1 Subarea 14.0 14.3 14.6 15.0 15.5 16.0 16.5 17.0 17.5 Description hr hr hr hr hr hr hr hr hr ' Renz -2 12 10 10 9 8 7 7 6 6 11 Total (cfs) 12 10 10 9 8 7 7 6 6 1 Total (cfs) 1 Quick TR 755 Version: 5.45 S /N: 1315460151 Page 3 Return Frequency: 100 years Subarea Description Renz -2 Subarea Description Renz -2 1 Renz -2 TR -55 TABULAR HYDROGRAPH METHOD Type II. Distribution (24 hr. Duration Storm) Executed: 07 -01 -1994 11:00:02 Watershed file: - -> RENZ2 .MOP Hydrograph file: - -> RENZ2 - BX.HYD Ridgemont Estates North - 3rd Addition Offsite drainage from SE of plat via existing /proposed ditches 50 -year and 100 -year storm return frequency NOTE: Peak discharge is lox (as per 10x RCN values) 11.0 11.3 11.6 11.9 12.0 12.1 12.2 12.3 12.4 hr hr hr hr hr hr hr hr hr 0 0 1 10 41 120 152 108 60 0 0 1 10 41 120 152 108 60 12.5 12.6 12.7 12.8 13.0 13.2 13.4 13.6 13.8 hr hr hr hr hr .hr hr hr hr 43 34 28 24 20 17 16 14 13 43 34 28 24 20 17 16 14 13 Subarea 18.0 19.0 20.0 22.0 26.0 Description hr hr hr hr hr 6 5 4 4 0 6 5 4 4 0 1 -48 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Quick TR -55 Version: 5.45 S /N: 1315460151 Page 4 Return Frequency: 100 years TR -55 TABULAR HYDROGRAPH METHOD Type II. Distribution (24 hr. Duration Storm) Executed: 07 -01 -1994 11:00:02 Watershed file: - -> RENZ2 .MOP Hydrograph file: - -> RENZ2 - BX.HYD Ridgemont Estates North - 3rd Addition Offsite drainage from SE of plat via existing /proposed ditches 50 -year and 100 -year storm return frequency NOTE: Peak discharge is 10x (as per 10x RCN values) Time Flow Time Flow (hrs) (cfs) (hrs) (cfs) 11.0 0 14.8 9 11.1 0 14.9 9 11.2 0 15.0 9 11.3 0 15.1 9 11.4 0 15.2 9 11.5 1 15.3 8 11.6 1 15.4 8 11.7 4 15.5 8 11.8 7 15.6 8 11.9 10 15.7 8 12.0 41 15.8 7 12.1 120 15.9 7 12.2 152 16.0 7 12.3 108 16.1 7 12.4 60 16.2 7 12.5 43 16.3 7 12.6 34 16.4 7 12.7 28 16.5 7 12.8 24 16.6 7 12.9 22 16.7 7 13.0 20 16.8 6 13.1 18 16.9 6 13.2 17 17.0 6 13.3 16 17.1 6 13.4 16 17.2 6 13.5 15 17.3 6 13.6 14 17.4 6 13.7 14 17.5 6 13.8 13 17.6 6 13.9 12 17.7 6 14.0 12 17.8 6 14.1 11 17.9 6 14.2 11 18.0 6 14.3 10 18.1 6 14.4 10 18.2 6 14.5 10 18.3 6 14.6 10 18.4 6 14.7 10 18.5 6 1 - 50 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Quick TR -55 Version: 5.45 S /N: 1315460151 Page 5 Return Frequency: 100 years TR -55 TABULAR HYDROGRAPH METHOD Type II. Distribution (24 hr. Duration Storm) Executed: 07 -01 -1994 11:00:02 Watershed file: - -> RENZ2 .MOP Hydrograph file: - -> RENZ2- BX.HYD Ridgemont Estates North - 3rd Addition Offsite drainage from SE, of plat via existing /proposed ditches 50 -year and 100 -year storm return frequency NOTE: Peak discharge is 10x (as per 10x RCN values) Time Flow Time Flow (hrs) (cfs) (hrs) (cfs) 18.6 5 22.4 4 18.7 5 22.5 4 18.8 5 22.6 3 18.9 5 22.7 3 19.0 5 22.8 3 19.1 5 22.9 3 19.2 5 23.0 3 19.3 5 23.1 3 19.4 5 23.2 3 19.5 4 23.3 3 19.6 4 23.4 3 19.7 4 23.5 2 19.8 4 23.6 2 19.9 4 23.7 2 20.0 4 23.8 2 20.1 4 23.9 2 20.2 4 24.0 2 20.3 4 24.1 2 20.4 4 24.2 2 20.5 4 24.3 2 20.6 4 24.4 2 20.7 4 24.5 2 20.8 4 24.6 1 20.9 4 24.7 1 21.0 4 24.8 1 21.1 4 24.9 1 21.2 4 25.0 1 21.3 4 25.1 1 21.4 4 25.2 1 21.5 4 25.3 1 21.6 4 25.4 1 21.7 4 25.5 0 21.8 4 25.6 0 21.9 4 25.7 0 22.0 4 25.8 0 22.1 4 25.9 0 22.2 4 22.3 4 I -51 1 1' 1 . 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 POND -2 Version: 5.15 S /N: 1295160123 Page 1 Executed 04 -26 -1994 11:01:51 * * * ** Multiply Hydrograph by Constant * * * ** Unit .HYD File: RENZ2- AX.HYD Output Hydrograph: RENZ2- 50.HYD Multiplier Constant: .1 GA 51 : c o - IcAP_ TIME Unit Multiplier Output Hydrograph (hrs) Ordinates Constant (cfs) 11.00 0.00 x 0.100 = 0.00 11.10 0.00 x 0.100 = 0.00 11.20 0.00 x 0.100 = 0.00 11.30 0.00 x 0.100 = 0.00 11.40 0.00 x 0.100 = 0.00 11.50 0.00 x 0.100 = 0.00 11.60 0.00 x 0.100 = 0.00 11.70 1.00 x 0.100 = 0.10 11.80 2.00 x 0.100 = 0.20 11.90 3.00 x 0.100 = 0.30 12.00 16.00 x 0.100 = 1.60 12.10 51.00 x 0.100 = 5.10 12.20 75.00 x 0.100 = 7.50 12.30 56.00 x 0.100 = 5.60 12.40 32.00 x 0.100 = 3.20 12.50 24.00 x 0.100 = 2.40 12.60 20.00 x 0.100 = 2.00 12.70 17.00 x 0.100 = 1.70 12.80 14.00 x 0.100 = 1.40 12.90 13.00 x 0.100 = 1.30 13.00 12.00 x 0.100 = 1.20 13.10 12.00 x 0.100 = 1.20 13.20 11.00 x 0.100 = 1.10 13.30 10.00 x 0.100 = 1.00 13.40 10.00 x 0.100 = 1.00 13.50 10.00 x 0.100 = 1.00 13.60 9.00 x 0.100 = 0.90 13.70 8.00 x 0.100 = 0.80 13.80 8.00 x 0.100 = 0.80 13.90 8.00 x 0.100 = 0.80 14.00 7.00 x 0.100 = 0.70 14.10 7.00 x 0.100 = 0.70 14.20 7.00 x 0.100 = 0.70 14.30 7.00 x 0.100 = 0.70 14.40 7.00 x 0.100 = 0.70 14.50 6.00 x 0.100 = 0.60 14.60 6.00 x 0.100 = 0.60 14.70 6.00 x 0.100 = 0.60 14.80 6.00 x 0.100 = 0.60 14.90 6.00 x 0.100 = 0.60 15.00 6.00 x 0.100 = 0.60 15.10 6.00 x 0.100 = 0.60 -5z 1 1 _1 _1 _i -1 POND -2 Version: 5.15 S /N: 1295160123 Page 2 Executed 04 -26 -1994 11:01:51 * * * ** Multiply Hydrograph by Constant * * * ** Unit .HYD File: RENZ2- AX.HYD Output Hydrograph: RENZ2- 50.HYD Multiplier Constant: .1 TIME Unit Multiplier . Output Hydrograph (hrs) Ordinates • Constant (cfs) 15.20 6.00 x 0.100 = 0.60 15.30 5.00 x 0.100 = 0.50 15.40 5.00 x 0.100 = 0.50 15.50 5.00 x 0.100 = 0.50 15.60 5.00 x 0.100 = 0.50 15.70 5.00 x 0.100 = 0.50 15.80 5.00 x 0.100 = 0.50 15.90 5.00 x 0.100 = 0.50 16.00 5.00 x 0.100 = 0.50 16.10 5.00 x 0.100 = 0.50 16.20 5.00 x 0.100 = 0.50 16.30 4.00 x 0.100 = 0.40 16.40 4.00 x 0.100 = 0.40 16.50 4.00 x 0.100 = 0.40 16.60 4.00 x 0.100 = 0.40 16.70 4.00 x 0.100 = 0.40 16.80 4.00 x 0.100 = 0.40 16.90 4.00 x 0.100 = 0.40 17.00 4.00 x 0.100 = 0.40 17.10 4.00 x 0.100 = 0.40 17.20 4.00 x 0.100 = 0.40 17.30 4.00 x 0.100 = 0.40 17.40 4.00 x 0.100 = 0.40 17.50 4.00 x 0.100 = 0.40 17.60 4.00 x 0.100 = 0.40 17.70 4.00 x 0.100 = 0.40 17.80 4.00 x 0.100 = 0.40 17.90 4.00 x 0.100 = 0.40 18.00 4.00 x 0.100 = 0.40 18.10 4.00 x 0.100 = 0.40 18.20 4.00 x 0.100 = 0.40 18.30 4.00 x 0.100 = 0.40 18.40 4.00 x 0.100 = 0.40 18.50 4.00 x 0.100 = 0.40 18.60 3.00 x 0.100 = 0.30 18.70 3.00 x 0.100 = 0.30 18.80 3.00 x 0.100 = 0.30 18.90 3.00 x 0.100 = 0.30 19.00 3.00 x 0.100 = 0.30 19.10 3.00 x 0.100 = 0.30 19.20 3.00 x 0.100 = 0.30 1-53 1 POND -2 Version: 5.15 S /N: 1295160123 Page 3 ' Executed 04 -26 -1994 11:01:51 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 * * * ** Multiply Hydrograph by Constant * * * ** Unit .HYD File: RENZ2- AX.HYD Output Hydrograph: RENZ2- 50.11YD Multiplier Constant: .1 TIME Unit Multiplier Output Hydrograph (hrs) Ordinates Constant (cfs) 19.30 3.00 x 0.100 = 0.30 19.40 3.00 x 0.100 = 0.30 19.50 3.00 x 0.100 = 0.30 19.60 3.00 x 0.100 = 0.30 19.70 3.00 x 0.100 = 0.30 19.80 3.00 x 0.100 = 0.30 19.90 3.00 x 0.100 = 0.30 20.00 3.00 x 0.100 = 0.30 20.10 3.00 x 0.100 = 0.30 20.20 3.00 x 0.100 = 0.30 20.30 3.00 x 0.100 = 0.30 20.40 3.00 x 0.100 = 0.30 20.50 3.00 x 0.100 = 0.30 20.60 3.00 x 0.100 = 0.30 20.70 3.00 x 0.100 = 0.30 20.80 3.00 x 0.100 = 0.30 20.90 3.00 x 0.100 = 0.30 21.00 3.00 x 0.100 = 0.30 21.10 3.00 x 0.100 = 0.30 21.20 3.00 x 0.100 = 0.30 21.30 3.00 x 0.100 = 0.30 21.40 3.00 x 0.100 = 0.30 21.50 3.00 x 0.100 = 0.30 21.60 3.00 x 0.100 = 0.30 21.70 3.00 x 0.100 = 0.30 21.80 3.00 x 0.100 = 0.30 21.90 3.00 x 0.100 = 0.30 22.00 3.00 x 0.100 = 0.30 22.10 3.00 x 0.100 = 0.30 22.20 3.00 x 0.100 = 0.30 22.30 3.00 x 0.100 = 0.30 22.40 3.00 x 0.100 = 0.30 22.50 3.00 x 0.100 = 0.30 22.60 3.00 x 0.100 = 0.30 22.70 2.00 x 0.100 = 0.20 22.80 2.00 x 0.100 = 0.20 22.90 2.00 x 0.100 = 0.20 23.00 2.00 x 0.100 = 0.20 23.10 2.00 x 0.100 = 0.20 23.20 2.00 x 0.100 = 0.20 23.30 2.00 x 0.100 = 0.20 I-54 POND -2 Version: 5.15 S /N: 1295160123 Executed 04 -26 -1994 11:01:51 * * * ** Multiply Hydrograph by Constant * * * ** Unit .HYD File: RENZ2- AX.HYD Output Hydrograph: RENZ2- 50.HYD Multiplier Constant: .1 Page 4 TIME Unit Multiplier Output Hydrograph (hrs) Ordinates • Constant (cfs) 23.40 2.00 x 0.100 = 0.20 23.50 2.00 x 0.100 = 0.20 23.60 2.00 x 0.100 = 0.20 23.70 2.00 x 0.100 = 0.20 23.80 2.00 x 0.100 = 0.20 23.90 2.00 x 0.100 = 0.20 24.00 2.00 x 0.100 = 0.20 24.10 1.00 x 0.100 = 0.10 24.20 1.00 x 0.100 = 0.10 24.30 1.00 x 0.100 = 0.10 24.40 1.00 x 0.100 = 0.10 24.50 1.00 x 0.100 = 0.10 24.60 1.00 x 0.100 = 0.10 24.70 1.00 x 0.100 = 0.10 24.80 1.00 x 0.100 = 0.10 24.90 1.00 x 0.100 = 0.10 25.00 1.00 x 0.100 = 0.10 25.10 1.00 x 0.100 = 0.10 25.20 1.00 x 0.100 = 0.10 25.30 1.00 x 0.100 = 0.10 25.40 0.00 x 0.100 = 0.00 25.50 0.00 x 0.100 = 0.00 25.60 0.00 x 0.100 = 0.00 25.70 0.00 x 0.100 = 0.00 25.80 0.00 x 0.100 = 0.00 25.90 0.00 x 0.100 = 0.00 1 -55 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 POND -2 Version: 5.15 S /N: 1295160123 Page 1 Executed 07 -01 -1994 11:03:59 * * * ** Multiply Hydrograph by Constant * * * ** Unit .HYD File: RENZ2- BX.HYD Output Hydrograph: RENZ2- 00.HYD Multiplier Constant: .1 TIME Unit Multiplier Output Hydrograph (hrs) Ordinates Constant (cfs) BASIN RS-2 I oo - YE/R. f \ cruAL Acs 11.00 0.00 x 0.100 = 0.00 11.10 0.00 x 0.100 = 0.00 11.20 0.00 x 0.100 = 0.00 11.30 0.00 x 0.100 = 0.00 11.40 0.00 x 0.100 = 0.00 11.50 1.00 x 0.100 = 0.10 11.60 1.00 x 0.100 = 0.10 11.70 4.00 x 0.100 = 0.40 11.80 7.00 x 0.100 = 0.70 11.90 10.00 x 0.100 = 1.00 12.00 41.00 x 0.100 = 4.10 12.10 120.00 x 0.100 = 12.00 12.20 152.00 x 0.100 = 15.20 F - Q1 0 0 12.30 108.00 x 0.100 = 10.80 12.40 60.00 x 0.100 = 6.00 12.50 43.00 x 0.100 = 4.30 12.60 34.00 x 0.100 = 3.40 12.70 28.00 x 0.100 = 2.80 12.80 24.00 x 0.100 = 2.40 12.90 22.00 x 0.100 = 2.20 13.00 20.00 x 0.100 = 2.00 13.10 18.00 x 0.100 = 1.80 13.20 17.00 x 0.100 = 1.70 13.30 16.00 x 0.100 = 1.60 13.40 16.00 x 0.100 = 1.60 13.50 15.00 x 0.100 = 1.50 13.60 14.00 x 0.100 = 1.40 13.70 14.00 x 0.100 = 1.40 13.80 13.00 x 0.100 = 1.30 13.90 12.00 x 0.100 = 1.20 14.00 12.00 x 0.100 = 1.20 14.10 11.00 x 0.100 = 1.10 14.20 11.00 x 0.100 = 1.10 14.30 10.00 x 0.100 = 1.00 14.40 10.00 x 0.100 = 1.00 14.50 10.00 x 0.100 = 1.00 14.60 10.00 x 0.100 = 1.00 14.70 10.00 x 0.100 = 1.00 14.80 9.00 x 0.100 = 0.90 14.90 9.00 x 0.100 = 0.90 15.00 9.00 x 0.100 = 0.90 15.10 9.00 x 0.100 = 0.90 I - SG 1 1 1 * * * ** Multiply Hydrograph by Constant * * * ** 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 POND -2 Version: 5.15 S /N: 1295160123 Page 2 Executed 07 -01 -1994 11:03:59 Unit .HYD File: RENZ2- BX.HYD Output Hydrograph: RENZ2- 00.HYD Multiplier Constant: :1 TIME Unit Multiplier Output Hydrograph (hrs) Ordinates Constant. (cfs) 15.20 15.30 15.40 15.50 15.60 15.70 15.80 15.90 16.00 16.10 16.20 16.30 16.40 16.50 16.60 16.70 16.80 16.90 17.00 17.10 17.20 17.30 17.40 17.50 17.60 17.70 17.80 17.90 18.00 18.10 18.20 18.30 18.40 18:50 18.60 18.70 18.80 18.90 19.00 19.10 19.20 9.00 x 0.100 8.00 x 0.100 8.00 x 0.100 8.00 x 0.100 8.00 x 0.100 8.00 x 0.100 7.00 x 0.100 7.00 x 0.100 7.00 x 0.100 7.00 x 0.100 7.00 x 0.100 7.00 x 0.100 7.00 x 0.100 7.00 x 0.100 7.00 x 0.100 7.00 x 0.100 6.00 x 0.100 6.00 x 0.100 6.00 x 0.100 6.00 x 0.100 6.00 x 0.100 6.00 x 0.100 6.00 x 0.100 6.00 x 0.100 6.00 x 0.100 6.00 x 0.100 6.00 x 0.100 6.00 x 0.100 6.00 x 0.100 6:00 x 0.100 6.00 x 0.100 6.00 x 0.100 6.00 x 0.100 6.00 x 0.100 5.00 x 0.100 5.00 x 0.100 5.00 x 0.100 5.00 x 0.100 5.00 x 0.100 5.00 x 0.100 5.00 x 0.100 0.90 0.80 0.80 0.80 0.80 0.80 0.70 0.70 0.70 0.70 0.70 0.70 0.70 0.70 0.70 0.70 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.50 0.50 0.50 0.50 0.50 0.50 0.50 1-57 1 1 1 Unit .HYD File: RENZ2- BX.HYD Output Hydrograph: RENZ2- 00.HYD 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 POND -2 Version: 5.15 S /N: 1295160123 Page 3 Executed 07 -01 -1994 11:03:59 * * * ** Multiply Hydrograph by Constant * * * ** Multiplier Constant:..1 TIME Unit, Multiplier Output Hydrograph (hrs) Ordinates • Constant (cis) 19.30 5.00 x 0.100 = 0.50 19.40 5.00 x 0.100 = 0.50 19.50 4.00 x 0.100 = 0.40 19.60 4.00 x 0.100 = 0.40 19.70 4.00 x 0.100 = 0.40 19.80 4.00 x 0.100 = 0.40 19.90 4.00 x 0.100 = 0.40 20.00 4.00 x 0.100 = 0.40 20.10 4.00 x 0.100 = 0.40 20.20 4.00 x 0.100 = 0.40 20.30 4.00 x 0.100 = 0.40 20.40 4.00 x 0.100 = 0.40 20.50 4.00 x 0.100 = 0.40 20.60 4.00 x 0.100 = 0.40 20.70 4.00 x 0.100 = 0.40 20.80 4.00 x 0.100 = 0.40 20.90 4.00 x 0.100 = 0.40 21.00 4.00 x 0.100 = 0.40 21.10 4.00 x 0.100 = 0.40 21.20 4.00 x 0.100 = 0.40 21.30 4.00 x 0.100 = 0.40 21.40 4.00 x 0.100 = 0.40 21.50 4.00 x 0.100 = 0.40 21.60 4.00 x 0.100 = 0.40 21.70 4.00 x 0.100 = 0.40 21.80 4.00 x 0.100 = 0.40 21.90 4.00 x 0.100 = 0.40 22.00 4.00 x 0.100 = 0.40 22.10 4.00 x 0.100 = 0.40 22.20 4.00 x 0.100 = 0.40 22.30 4.00 x 0.100 = 0.40 22.40 4.00 x 0.100 = 0.40 22.50 4.00 x 0.100 = 0.40 22.60 3.00 x 0.100 = 0.30 22.70 3.00 x 0.100 = 0.30 22.80 3.00 x 0.100 = 0.30 22.90 3.00 x 0.100 = 0.30 23.00 3.00 x 0.100 = 0.30 23.10 3.00 x 0.100 = 0.30 23.20 3.00 x 0.100 = 0.30 23.30 3.00 x 0.100 = 0.30 POND -2. Version: 5.15 S /N: 1295160123 Page 4 Executed 07 -01 -1994 11:03:59 * * * ** Multiply Hydrograph by Constant * * * ** Unit .HYD File: RENZ2- BX.HYD Output Hydrograph: RENZ2- 00.HYD Multiplier Constant: .1 TIME Unit Multiplier Output Hydrograph (hrs) Ordinates Constant (cfs) 23.40 3.00 x 0.100 = 0.30 23.50 2.00 x 0.100 = 0.20 23.60 2.00 x 0.100 = 0.20 23.70 2.00 x 0.100 = 0.20 23.80 2.00 x 0.100 = 0.20 23.90 2.00 x 0.100 = 0.20 24.00 2.00 x 0.100 = 0.20 24.10 2.00 x 0.100 = 0.20 24.20 2. x 0.100 = 0.20 24.30 2.00 x 0.100 = 0.20 24.40 2.00 x 0.100 = 0.20 24.50 2.00 x 0.100 = 0.20 24.60 1.00 x 0.100 = 0.10 24.70 1.00 x 0.100 = 0.10 24.80 1.00 x 0.100 = 0.10 24.90 1.00 x 0.100 = 0.10 25.00 1. x 0.100 = 0.10 25.10 1.00 x 0.100 = 0.10 25.20 1.00 x 0.100 = 0.10 25.30 1.00 x 0.100 = 0.10 25.40 1.00 x 0.100 = 0.10 25.50 0.00 x 0.100 = 0.00 25.60 0.00 x 0.100 = 0.00 25.70 0.00 x 0.100 = 0.00 25.80 0.00 x 0.100 = 0.00 25.90 0.00 x 0.100 = 0.00 Quick TR -55 Version: 5.45 S /N: 1315460151 Page 2 Return Frequency: 50 years TR -55 TABULAR HYDROGRAPH METHOD Type II. Distribution (24 hr. Duration Storm) Executed: 04 -26 -1994 10:42:00 Watershed file: - -> RENZ2 .MOP Hydrograph file: - -> RENZ2 - AX.HYD Ridgemont Estates North - 3rd Addition Offsite drainage from SE of plat via existing /proposed ditches 50 -year and 100 -year storm return frequency NOTE: Peak discharge is 10x (as per 10x RCN values) »» Summary of Subarea Times to Peak «« Subarea Renz -2 Composite Watershed Peak Discharge at Time to Peak at Composite Outfall Composite Outfall (cfs) (hrs) 75 12.2 75 12.2 1 -4I 1 1 1 1 1 1 1 Quick TR -55 Version: 5.45 S /N: 1315460151 Page 3 Return Frequency: 50 years Subarea Description enz -2 'Total (cfs) 1 1 Subarea Description Renz -2 ,Total (cfs) Subarea Description 'Renz -2 !'Total (cfs) Subarea 18.0 19.0. 20.0 22.0 26.0 Description hr hr hr hr hr 'Renz -2 'Total (cfs) TR -55 TABULAR HYDROGRAPH METHOD Type II. Distribution (24 hr.IDuration Storm) Executed: 04 -26 -1994 10:42:00 Watershed file: - -> RENZ2 .MOP Hydrograph file: - -> RENZ2- AX.HYD Ridgemont Estates North - 3rd Addition Offsite drainage from SE of plat via existing /proposed ditches 50 -year and 100 -year storm return frequency NOTE: Peak discharge is 10x (as per 10x RCN values) Composite Hydrograph Summary (cfs) 11.0 11.3 11.6 11.9 12.0 12.1 12.2 12.3 12.4 hr hr hr hr hr hr hr hr hr 0 0 0 3 16 51 75 56 32 0 0 0 3 16 51 75 56 32 12.5 12.6 12.7 12.8 13.0 13.2 13.4 13.6 13.8 hr hr hr hr hr hr hr hr hr 24 20 17 14 12 11 10 9 8 24 20 17 14 12 11 10 9 8 14.0 14.3 14.6 15.0 15.5 16.0 16.5 17.0 17.5 hr hr hr hr hr hr hr hr hr 7 7 6 6 5 5 4 4 4 7 7 6 6 5 5 4 4 4 4 3 3 3 0 4 3 3 3 0 II Quick TR -55 Version: 5.45 S /N: 1315460151 Page 4 Return Frequency: 50 years TR -55 TABULAR HYDROGRAPH METHOD Type II. Distribution (24 hr. Duration Storm) Executed: 04 -26 -1994 10:42:00 Watershed file: - -> RENZ2 .MOP Hydrograph file: - -> RENZ2- AX.HYD Ridgemont Estates North - 3rd Addition Offsite drainage from SE of plat via existing /proposed ditches 50 -year and 100 -year storm return frequency NOTE: Peak discharge is 10x (as per 10x RCN values) Time Flow Time Flow (hrs) (cfs) (hrs) (cfs) 11.0 0 14.8 6 11.1 0 14.9 6 11.2 0 15.0 6 11.3 0 15.1 6 11.4 0 15.2 6 11.5 0 15.3 5 11.6 0 15.4 5 11.7 1 15.5 5 11.8 2 15.6 5 11.9 3 15.7 5 12.0 16 15.8 5 12.1 51 15.9 5 12.2 75 16.0 5 12.3 56 16.1 5 12.4 32 16.2 5 12.5 24 16.3 4 12.6 20 16.4 4 12.7 17 16.5 4 12.8 14 16.6 4 12.9 13 16.7 4 13.0 12 16.8 4 13.1 12 16.9 4 13.2 11 17.0 4 13.3 10 17.1 4 13.4 10 17.2 4 13.5 10 17.3 4 13.6 9 17.4 4 13.7 8 17.5 4 13.8 8 17.6 4 13.9 8 17.7 4 14.0 7 17.8 4 14.1 7 17.9 4 14.2 7 18.0 4 14.3 7 18.1 4 14.4 7 18.2 4 14.5 6 18.3 4 -'+3 l 1 1 1 . 1- 1- 1. 1 . 1 . 1 1 1 1 1 1 1 1 14.6 6 18.4 4 14.7 6 18.5 4 1 -24 1 I Quick TR -55 Version: 5.45 S /N: 1315460151 Page 5 Return Frequency: 50 years 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 TR -55 TABULAR HYDROGRAPH METHOD Type II. Distribution (24 hr. Duration Storm) Executed: 04 -26 -1994 10:42:00 Watershed file: - -> RENZ2 .MOP Hydrograph file: - -> RENZ2- AX.HYD Ridgemont Estates North - 3rd Addition Offsite drainage from SE of plat via existing /proposed ditches 50 -year and 100 -year storm return frequency NOTE: Peak discharge is 10x (as per 10x RCN values) Time Flow Time Flow (hrs) (cfs) (hrs) (cfs) 18.6 3 22.4 3 18.7 3 22.5 3 18.8 3 22.6 3 18.9 3 22.7 2 19.0 3 22.8 2 19.1 3 22.9 2 19.2 3 23.0 2 19.3 3 23.1 2 19.4 3 23.2 2 19.5 3 23.3 2 19.6 3 23.4 2 19.7 3 23.5 2 19.8 3 23.6 2 19.9 3 23.7 2 20.0 3 23.8 2 20.1 3 23.9 2 20.2 3 24.0 2 20.3 3 24.1 1 20.4 3 24.2 1 20.5 3 24.3 1 20.6 3 24.4 1 20.7 3 24.5 1 20.8 3 24.6 1 20.9 3 24.7 1 21.0 3 24.8 1 21.1 3 24.9 1 21.2 3 25.0 1 21.3 3 25.1 1 21.4 3 25.2 1 21.5 3 25.3 1 21.6 3 25.4 0 21.7 3 25.5 0 21.8 3 25.6 0 21.9 3 25.7 0 22.0 3 25.8 0 22.1 3 25.9 0 22.2 3 22.3 3 -45 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Quick TR -55 Version: 5.45 S /N: 1315460151 Page 1 Return Frequency: 100 years Renz -2 I Renz -2 TR -55 TABULAR HYDROGRAPH METHOD Type II. Distribution (24 hr. Duration Storm) Executed: 07 -01 -1994 11:00:02 Watershed filer - -> RENZ2 .MOP Hydrograph file: - -> RENZ2- BX.HYD I i co -1E4R. 10 c AKEAS I Ridgemont Estates North - 3rd Addition Offsite drainage from SE of plat via existing /proposed ditches 50 -year and 100 -year storm return frequency NOTE: Peak discharge is 10x (as per 10x RCN values) »» Input Parameters Used to Compute Hydrograph «« Subarea AREA CN Tc * Tt Precip. I Runoff Ia /p Description (acres) (hrs) (hrs) (in) (in) input /used 195.40 70.0 0.20 0.00 3.00 I 0.71 I.29 .29 ' * Travel time from subarea outfall to composite watershed outfall point. I -- Subarea where user specified interpolation between Ia /p tables. Total area = 195.40 acres or 0.3053 sq.mi Peak discharge = 152 cfs >>>> Computer Modifications of Input Parameters ««< Input Values Rounded Values Ia /p Subarea Tc * Tt Tc * Tt Interpolated Ia /p Description (hr) (hr) (hr) (hr) (Yes /No) Messages 0.15 0.00 0.20 0.00 Yes * Travel time from subarea outfall to composite watershed outfall point. 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Quick TR -55 Version: 5.45 S /N: 1315460151 Page 2 Return Frequency: 100 years Executed: 07 -01 -1994 11:00:02 Watershed file: - -> RENZ2 .MOP Hydrograph file: - -> RENZ2- BX.HYD Ridgemont Estates North - 3rd Addition Offsite drainage from SE of plat via existing /proposed ditches 50 -year and 100 -year storm return frequency NOTE: Peak discharge is 10x (as per'10x RCN values) Subarea Renz -2 »» Summary of Subarea Times to Peak «« Composite Watershed TR -55 TABULAR HYDROGRAPH METHOD Type II. Distribution (24 hr. Duration Storm) Peak Discharge at Time to Peak at Composite Outfall Composite Outfall (cfs) (hrs) 152 12.2 152 12.2 1 -47 1 1 1 1 1 1 ' Composite Hydrograph Summary (cfs) ' Total (cfs) 1 ' Total (cfs) 1 Subarea 14.0 14.3 14.6 15.0 15.5 16.0 16.5 17.0 17.5 Description hr hr hr hr hr hr hr hr hr ' Renz -2 12 10 10 9 8 7 7 6 6 11 Total (cfs) 12 10 10 9 8 7 7 6 6 1 Total (cfs) 1 Quick TR 755 Version: 5.45 S /N: 1315460151 Page 3 Return Frequency: 100 years Subarea Description Renz -2 Subarea Description Renz -2 1 Renz -2 TR -55 TABULAR HYDROGRAPH METHOD Type II. Distribution (24 hr. Duration Storm) Executed: 07 -01 -1994 11:00:02 Watershed file: - -> RENZ2 .MOP Hydrograph file: - -> RENZ2 - BX.HYD Ridgemont Estates North - 3rd Addition Offsite drainage from SE of plat via existing /proposed ditches 50 -year and 100 -year storm return frequency NOTE: Peak discharge is lox (as per 10x RCN values) 11.0 11.3 11.6 11.9 12.0 12.1 12.2 12.3 12.4 hr hr hr hr hr hr hr hr hr 0 0 1 10 41 120 152 108 60 0 0 1 10 41 120 152 108 60 12.5 12.6 12.7 12.8 13.0 13.2 13.4 13.6 13.8 hr hr hr hr hr .hr hr hr hr 43 34 28 24 20 17 16 14 13 43 34 28 24 20 17 16 14 13 Subarea 18.0 19.0 20.0 22.0 26.0 Description hr hr hr hr hr 6 5 4 4 0 6 5 4 4 0 1 -48 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Quick TR -55 Version: 5.45 S /N: 1315460151 Page 4 Return Frequency: 100 years TR -55 TABULAR HYDROGRAPH METHOD Type II. Distribution (24 hr. Duration Storm) Executed: 07 -01 -1994 11:00:02 Watershed file: - -> RENZ2 .MOP Hydrograph file: - -> RENZ2 - BX.HYD Ridgemont Estates North - 3rd Addition Offsite drainage from SE of plat via existing /proposed ditches 50 -year and 100 -year storm return frequency NOTE: Peak discharge is 10x (as per 10x RCN values) Time Flow Time Flow (hrs) (cfs) (hrs) (cfs) 11.0 0 14.8 9 11.1 0 14.9 9 11.2 0 15.0 9 11.3 0 15.1 9 11.4 0 15.2 9 11.5 1 15.3 8 11.6 1 15.4 8 11.7 4 15.5 8 11.8 7 15.6 8 11.9 10 15.7 8 12.0 41 15.8 7 12.1 120 15.9 7 12.2 152 16.0 7 12.3 108 16.1 7 12.4 60 16.2 7 12.5 43 16.3 7 12.6 34 16.4 7 12.7 28 16.5 7 12.8 24 16.6 7 12.9 22 16.7 7 13.0 20 16.8 6 13.1 18 16.9 6 13.2 17 17.0 6 13.3 16 17.1 6 13.4 16 17.2 6 13.5 15 17.3 6 13.6 14 17.4 6 13.7 14 17.5 6 13.8 13 17.6 6 13.9 12 17.7 6 14.0 12 17.8 6 14.1 11 17.9 6 14.2 11 18.0 6 14.3 10 18.1 6 14.4 10 18.2 6 14.5 10 18.3 6 14.6 10 18.4 6 14.7 10 18.5 6 1 - 50 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Quick TR -55 Version: 5.45 S /N: 1315460151 Page 5 Return Frequency: 100 years TR -55 TABULAR HYDROGRAPH METHOD Type II. Distribution (24 hr. Duration Storm) Executed: 07 -01 -1994 11:00:02 Watershed file: - -> RENZ2 .MOP Hydrograph file: - -> RENZ2- BX.HYD Ridgemont Estates North - 3rd Addition Offsite drainage from SE, of plat via existing /proposed ditches 50 -year and 100 -year storm return frequency NOTE: Peak discharge is 10x (as per 10x RCN values) Time Flow Time Flow (hrs) (cfs) (hrs) (cfs) 18.6 5 22.4 4 18.7 5 22.5 4 18.8 5 22.6 3 18.9 5 22.7 3 19.0 5 22.8 3 19.1 5 22.9 3 19.2 5 23.0 3 19.3 5 23.1 3 19.4 5 23.2 3 19.5 4 23.3 3 19.6 4 23.4 3 19.7 4 23.5 2 19.8 4 23.6 2 19.9 4 23.7 2 20.0 4 23.8 2 20.1 4 23.9 2 20.2 4 24.0 2 20.3 4 24.1 2 20.4 4 24.2 2 20.5 4 24.3 2 20.6 4 24.4 2 20.7 4 24.5 2 20.8 4 24.6 1 20.9 4 24.7 1 21.0 4 24.8 1 21.1 4 24.9 1 21.2 4 25.0 1 21.3 4 25.1 1 21.4 4 25.2 1 21.5 4 25.3 1 21.6 4 25.4 1 21.7 4 25.5 0 21.8 4 25.6 0 21.9 4 25.7 0 22.0 4 25.8 0 22.1 4 25.9 0 22.2 4 22.3 4 I -51 1 1' 1 . 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 POND -2 Version: 5.15 S /N: 1295160123 Page 1 Executed 04 -26 -1994 11:01:51 * * * ** Multiply Hydrograph by Constant * * * ** Unit .HYD File: RENZ2- AX.HYD Output Hydrograph: RENZ2- 50.HYD Multiplier Constant: .1 GA 51 : c o - IcAP_ TIME Unit Multiplier Output Hydrograph (hrs) Ordinates Constant (cfs) 11.00 0.00 x 0.100 = 0.00 11.10 0.00 x 0.100 = 0.00 11.20 0.00 x 0.100 = 0.00 11.30 0.00 x 0.100 = 0.00 11.40 0.00 x 0.100 = 0.00 11.50 0.00 x 0.100 = 0.00 11.60 0.00 x 0.100 = 0.00 11.70 1.00 x 0.100 = 0.10 11.80 2.00 x 0.100 = 0.20 11.90 3.00 x 0.100 = 0.30 12.00 16.00 x 0.100 = 1.60 12.10 51.00 x 0.100 = 5.10 12.20 75.00 x 0.100 = 7.50 12.30 56.00 x 0.100 = 5.60 12.40 32.00 x 0.100 = 3.20 12.50 24.00 x 0.100 = 2.40 12.60 20.00 x 0.100 = 2.00 12.70 17.00 x 0.100 = 1.70 12.80 14.00 x 0.100 = 1.40 12.90 13.00 x 0.100 = 1.30 13.00 12.00 x 0.100 = 1.20 13.10 12.00 x 0.100 = 1.20 13.20 11.00 x 0.100 = 1.10 13.30 10.00 x 0.100 = 1.00 13.40 10.00 x 0.100 = 1.00 13.50 10.00 x 0.100 = 1.00 13.60 9.00 x 0.100 = 0.90 13.70 8.00 x 0.100 = 0.80 13.80 8.00 x 0.100 = 0.80 13.90 8.00 x 0.100 = 0.80 14.00 7.00 x 0.100 = 0.70 14.10 7.00 x 0.100 = 0.70 14.20 7.00 x 0.100 = 0.70 14.30 7.00 x 0.100 = 0.70 14.40 7.00 x 0.100 = 0.70 14.50 6.00 x 0.100 = 0.60 14.60 6.00 x 0.100 = 0.60 14.70 6.00 x 0.100 = 0.60 14.80 6.00 x 0.100 = 0.60 14.90 6.00 x 0.100 = 0.60 15.00 6.00 x 0.100 = 0.60 15.10 6.00 x 0.100 = 0.60 -5z 1 1 _1 _1 _i -1 POND -2 Version: 5.15 S /N: 1295160123 Page 2 Executed 04 -26 -1994 11:01:51 * * * ** Multiply Hydrograph by Constant * * * ** Unit .HYD File: RENZ2- AX.HYD Output Hydrograph: RENZ2- 50.HYD Multiplier Constant: .1 TIME Unit Multiplier . Output Hydrograph (hrs) Ordinates • Constant (cfs) 15.20 6.00 x 0.100 = 0.60 15.30 5.00 x 0.100 = 0.50 15.40 5.00 x 0.100 = 0.50 15.50 5.00 x 0.100 = 0.50 15.60 5.00 x 0.100 = 0.50 15.70 5.00 x 0.100 = 0.50 15.80 5.00 x 0.100 = 0.50 15.90 5.00 x 0.100 = 0.50 16.00 5.00 x 0.100 = 0.50 16.10 5.00 x 0.100 = 0.50 16.20 5.00 x 0.100 = 0.50 16.30 4.00 x 0.100 = 0.40 16.40 4.00 x 0.100 = 0.40 16.50 4.00 x 0.100 = 0.40 16.60 4.00 x 0.100 = 0.40 16.70 4.00 x 0.100 = 0.40 16.80 4.00 x 0.100 = 0.40 16.90 4.00 x 0.100 = 0.40 17.00 4.00 x 0.100 = 0.40 17.10 4.00 x 0.100 = 0.40 17.20 4.00 x 0.100 = 0.40 17.30 4.00 x 0.100 = 0.40 17.40 4.00 x 0.100 = 0.40 17.50 4.00 x 0.100 = 0.40 17.60 4.00 x 0.100 = 0.40 17.70 4.00 x 0.100 = 0.40 17.80 4.00 x 0.100 = 0.40 17.90 4.00 x 0.100 = 0.40 18.00 4.00 x 0.100 = 0.40 18.10 4.00 x 0.100 = 0.40 18.20 4.00 x 0.100 = 0.40 18.30 4.00 x 0.100 = 0.40 18.40 4.00 x 0.100 = 0.40 18.50 4.00 x 0.100 = 0.40 18.60 3.00 x 0.100 = 0.30 18.70 3.00 x 0.100 = 0.30 18.80 3.00 x 0.100 = 0.30 18.90 3.00 x 0.100 = 0.30 19.00 3.00 x 0.100 = 0.30 19.10 3.00 x 0.100 = 0.30 19.20 3.00 x 0.100 = 0.30 1-53 1 POND -2 Version: 5.15 S /N: 1295160123 Page 3 ' Executed 04 -26 -1994 11:01:51 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 * * * ** Multiply Hydrograph by Constant * * * ** Unit .HYD File: RENZ2- AX.HYD Output Hydrograph: RENZ2- 50.11YD Multiplier Constant: .1 TIME Unit Multiplier Output Hydrograph (hrs) Ordinates Constant (cfs) 19.30 3.00 x 0.100 = 0.30 19.40 3.00 x 0.100 = 0.30 19.50 3.00 x 0.100 = 0.30 19.60 3.00 x 0.100 = 0.30 19.70 3.00 x 0.100 = 0.30 19.80 3.00 x 0.100 = 0.30 19.90 3.00 x 0.100 = 0.30 20.00 3.00 x 0.100 = 0.30 20.10 3.00 x 0.100 = 0.30 20.20 3.00 x 0.100 = 0.30 20.30 3.00 x 0.100 = 0.30 20.40 3.00 x 0.100 = 0.30 20.50 3.00 x 0.100 = 0.30 20.60 3.00 x 0.100 = 0.30 20.70 3.00 x 0.100 = 0.30 20.80 3.00 x 0.100 = 0.30 20.90 3.00 x 0.100 = 0.30 21.00 3.00 x 0.100 = 0.30 21.10 3.00 x 0.100 = 0.30 21.20 3.00 x 0.100 = 0.30 21.30 3.00 x 0.100 = 0.30 21.40 3.00 x 0.100 = 0.30 21.50 3.00 x 0.100 = 0.30 21.60 3.00 x 0.100 = 0.30 21.70 3.00 x 0.100 = 0.30 21.80 3.00 x 0.100 = 0.30 21.90 3.00 x 0.100 = 0.30 22.00 3.00 x 0.100 = 0.30 22.10 3.00 x 0.100 = 0.30 22.20 3.00 x 0.100 = 0.30 22.30 3.00 x 0.100 = 0.30 22.40 3.00 x 0.100 = 0.30 22.50 3.00 x 0.100 = 0.30 22.60 3.00 x 0.100 = 0.30 22.70 2.00 x 0.100 = 0.20 22.80 2.00 x 0.100 = 0.20 22.90 2.00 x 0.100 = 0.20 23.00 2.00 x 0.100 = 0.20 23.10 2.00 x 0.100 = 0.20 23.20 2.00 x 0.100 = 0.20 23.30 2.00 x 0.100 = 0.20 I-54 POND -2 Version: 5.15 S /N: 1295160123 Executed 04 -26 -1994 11:01:51 * * * ** Multiply Hydrograph by Constant * * * ** Unit .HYD File: RENZ2- AX.HYD Output Hydrograph: RENZ2- 50.HYD Multiplier Constant: .1 Page 4 TIME Unit Multiplier Output Hydrograph (hrs) Ordinates • Constant (cfs) 23.40 2.00 x 0.100 = 0.20 23.50 2.00 x 0.100 = 0.20 23.60 2.00 x 0.100 = 0.20 23.70 2.00 x 0.100 = 0.20 23.80 2.00 x 0.100 = 0.20 23.90 2.00 x 0.100 = 0.20 24.00 2.00 x 0.100 = 0.20 24.10 1.00 x 0.100 = 0.10 24.20 1.00 x 0.100 = 0.10 24.30 1.00 x 0.100 = 0.10 24.40 1.00 x 0.100 = 0.10 24.50 1.00 x 0.100 = 0.10 24.60 1.00 x 0.100 = 0.10 24.70 1.00 x 0.100 = 0.10 24.80 1.00 x 0.100 = 0.10 24.90 1.00 x 0.100 = 0.10 25.00 1.00 x 0.100 = 0.10 25.10 1.00 x 0.100 = 0.10 25.20 1.00 x 0.100 = 0.10 25.30 1.00 x 0.100 = 0.10 25.40 0.00 x 0.100 = 0.00 25.50 0.00 x 0.100 = 0.00 25.60 0.00 x 0.100 = 0.00 25.70 0.00 x 0.100 = 0.00 25.80 0.00 x 0.100 = 0.00 25.90 0.00 x 0.100 = 0.00 1 -55 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 POND -2 Version: 5.15 S /N: 1295160123 Page 1 Executed 07 -01 -1994 11:03:59 * * * ** Multiply Hydrograph by Constant * * * ** Unit .HYD File: RENZ2- BX.HYD Output Hydrograph: RENZ2- 00.HYD Multiplier Constant: .1 TIME Unit Multiplier Output Hydrograph (hrs) Ordinates Constant (cfs) BASIN RS-2 I oo - YE/R. f \ cruAL Acs 11.00 0.00 x 0.100 = 0.00 11.10 0.00 x 0.100 = 0.00 11.20 0.00 x 0.100 = 0.00 11.30 0.00 x 0.100 = 0.00 11.40 0.00 x 0.100 = 0.00 11.50 1.00 x 0.100 = 0.10 11.60 1.00 x 0.100 = 0.10 11.70 4.00 x 0.100 = 0.40 11.80 7.00 x 0.100 = 0.70 11.90 10.00 x 0.100 = 1.00 12.00 41.00 x 0.100 = 4.10 12.10 120.00 x 0.100 = 12.00 12.20 152.00 x 0.100 = 15.20 F - Q1 0 0 12.30 108.00 x 0.100 = 10.80 12.40 60.00 x 0.100 = 6.00 12.50 43.00 x 0.100 = 4.30 12.60 34.00 x 0.100 = 3.40 12.70 28.00 x 0.100 = 2.80 12.80 24.00 x 0.100 = 2.40 12.90 22.00 x 0.100 = 2.20 13.00 20.00 x 0.100 = 2.00 13.10 18.00 x 0.100 = 1.80 13.20 17.00 x 0.100 = 1.70 13.30 16.00 x 0.100 = 1.60 13.40 16.00 x 0.100 = 1.60 13.50 15.00 x 0.100 = 1.50 13.60 14.00 x 0.100 = 1.40 13.70 14.00 x 0.100 = 1.40 13.80 13.00 x 0.100 = 1.30 13.90 12.00 x 0.100 = 1.20 14.00 12.00 x 0.100 = 1.20 14.10 11.00 x 0.100 = 1.10 14.20 11.00 x 0.100 = 1.10 14.30 10.00 x 0.100 = 1.00 14.40 10.00 x 0.100 = 1.00 14.50 10.00 x 0.100 = 1.00 14.60 10.00 x 0.100 = 1.00 14.70 10.00 x 0.100 = 1.00 14.80 9.00 x 0.100 = 0.90 14.90 9.00 x 0.100 = 0.90 15.00 9.00 x 0.100 = 0.90 15.10 9.00 x 0.100 = 0.90 I - SG 1 1 1 * * * ** Multiply Hydrograph by Constant * * * ** 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 POND -2 Version: 5.15 S /N: 1295160123 Page 2 Executed 07 -01 -1994 11:03:59 Unit .HYD File: RENZ2- BX.HYD Output Hydrograph: RENZ2- 00.HYD Multiplier Constant: :1 TIME Unit Multiplier Output Hydrograph (hrs) Ordinates Constant. (cfs) 15.20 15.30 15.40 15.50 15.60 15.70 15.80 15.90 16.00 16.10 16.20 16.30 16.40 16.50 16.60 16.70 16.80 16.90 17.00 17.10 17.20 17.30 17.40 17.50 17.60 17.70 17.80 17.90 18.00 18.10 18.20 18.30 18.40 18:50 18.60 18.70 18.80 18.90 19.00 19.10 19.20 9.00 x 0.100 8.00 x 0.100 8.00 x 0.100 8.00 x 0.100 8.00 x 0.100 8.00 x 0.100 7.00 x 0.100 7.00 x 0.100 7.00 x 0.100 7.00 x 0.100 7.00 x 0.100 7.00 x 0.100 7.00 x 0.100 7.00 x 0.100 7.00 x 0.100 7.00 x 0.100 6.00 x 0.100 6.00 x 0.100 6.00 x 0.100 6.00 x 0.100 6.00 x 0.100 6.00 x 0.100 6.00 x 0.100 6.00 x 0.100 6.00 x 0.100 6.00 x 0.100 6.00 x 0.100 6.00 x 0.100 6.00 x 0.100 6:00 x 0.100 6.00 x 0.100 6.00 x 0.100 6.00 x 0.100 6.00 x 0.100 5.00 x 0.100 5.00 x 0.100 5.00 x 0.100 5.00 x 0.100 5.00 x 0.100 5.00 x 0.100 5.00 x 0.100 0.90 0.80 0.80 0.80 0.80 0.80 0.70 0.70 0.70 0.70 0.70 0.70 0.70 0.70 0.70 0.70 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.50 0.50 0.50 0.50 0.50 0.50 0.50 1-57 1 1 1 Unit .HYD File: RENZ2- BX.HYD Output Hydrograph: RENZ2- 00.HYD 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 POND -2 Version: 5.15 S /N: 1295160123 Page 3 Executed 07 -01 -1994 11:03:59 * * * ** Multiply Hydrograph by Constant * * * ** Multiplier Constant:..1 TIME Unit, Multiplier Output Hydrograph (hrs) Ordinates • Constant (cis) 19.30 5.00 x 0.100 = 0.50 19.40 5.00 x 0.100 = 0.50 19.50 4.00 x 0.100 = 0.40 19.60 4.00 x 0.100 = 0.40 19.70 4.00 x 0.100 = 0.40 19.80 4.00 x 0.100 = 0.40 19.90 4.00 x 0.100 = 0.40 20.00 4.00 x 0.100 = 0.40 20.10 4.00 x 0.100 = 0.40 20.20 4.00 x 0.100 = 0.40 20.30 4.00 x 0.100 = 0.40 20.40 4.00 x 0.100 = 0.40 20.50 4.00 x 0.100 = 0.40 20.60 4.00 x 0.100 = 0.40 20.70 4.00 x 0.100 = 0.40 20.80 4.00 x 0.100 = 0.40 20.90 4.00 x 0.100 = 0.40 21.00 4.00 x 0.100 = 0.40 21.10 4.00 x 0.100 = 0.40 21.20 4.00 x 0.100 = 0.40 21.30 4.00 x 0.100 = 0.40 21.40 4.00 x 0.100 = 0.40 21.50 4.00 x 0.100 = 0.40 21.60 4.00 x 0.100 = 0.40 21.70 4.00 x 0.100 = 0.40 21.80 4.00 x 0.100 = 0.40 21.90 4.00 x 0.100 = 0.40 22.00 4.00 x 0.100 = 0.40 22.10 4.00 x 0.100 = 0.40 22.20 4.00 x 0.100 = 0.40 22.30 4.00 x 0.100 = 0.40 22.40 4.00 x 0.100 = 0.40 22.50 4.00 x 0.100 = 0.40 22.60 3.00 x 0.100 = 0.30 22.70 3.00 x 0.100 = 0.30 22.80 3.00 x 0.100 = 0.30 22.90 3.00 x 0.100 = 0.30 23.00 3.00 x 0.100 = 0.30 23.10 3.00 x 0.100 = 0.30 23.20 3.00 x 0.100 = 0.30 23.30 3.00 x 0.100 = 0.30 POND -2. Version: 5.15 S /N: 1295160123 Page 4 Executed 07 -01 -1994 11:03:59 * * * ** Multiply Hydrograph by Constant * * * ** Unit .HYD File: RENZ2- BX.HYD Output Hydrograph: RENZ2- 00.HYD Multiplier Constant: .1 TIME Unit Multiplier Output Hydrograph (hrs) Ordinates Constant (cfs) 23.40 3.00 x 0.100 = 0.30 23.50 2.00 x 0.100 = 0.20 23.60 2.00 x 0.100 = 0.20 23.70 2.00 x 0.100 = 0.20 23.80 2.00 x 0.100 = 0.20 23.90 2.00 x 0.100 = 0.20 24.00 2.00 x 0.100 = 0.20 24.10 2.00 x 0.100 = 0.20 24.20 2. x 0.100 = 0.20 24.30 2.00 x 0.100 = 0.20 24.40 2.00 x 0.100 = 0.20 24.50 2.00 x 0.100 = 0.20 24.60 1.00 x 0.100 = 0.10 24.70 1.00 x 0.100 = 0.10 24.80 1.00 x 0.100 = 0.10 24.90 1.00 x 0.100 = 0.10 25.00 1. x 0.100 = 0.10 25.10 1.00 x 0.100 = 0.10 25.20 1.00 x 0.100 = 0.10 25.30 1.00 x 0.100 = 0.10 25.40 1.00 x 0.100 = 0.10 25.50 0.00 x 0.100 = 0.00 25.60 0.00 x 0.100 = 0.00 25.70 0.00 x 0.100 = 0.00 25.80 0.00 x 0.100 = 0.00 25.90 0.00 x 0.100 = 0.00 - The following pages present composite hydrograph calculations for Q50 and Qwu in the following order: Location On -Site Ott -Site Combined Basins 3A+3B +3C +3D±4C Renz -I and Renz -2 On -Site + Off-Site Composite Hydrographs Q50 Hydrograph Q 1lvdrouranh . RidN3 -50 RenzC -50 Ren3A -50 RidN3 -00 RenzC -00 Rcn3A -00 Rip N3. KLN Quick TR -55 Ver.5.45 S/N:1- 315460151 Executed: 08:22:53 04 -27 -1994 Ridgemont Estates North - 3rd Addition Composite Basin: 3A + 3B + 3C + 3D + 4C * NOTE: areas = 10x to increase accuracy hydrographs = 0.10x (back to original) Composite Area: Basin RidN3 RUNOFF CURVE NUMBER DATA SURFACE DESCRIPTION Impervious (roads, houses) Pervious (lawns, landscaping) Pervious (gravel ''lift sta.) AREA (acres) 26.86 99.36 2.00 CN 98 61 85 COMPOSITE AREA - - -> 128.22 69.1 ( 69 ) I -GI Quick TR -55 Ver.5.45 S/N:1315460151 Executed: 08:54:19 04 -27 -1994 RIDN3.TCT Ridgemont Estates North - 3rd Addition Composite Basin: 3A + 3B + 3C ± 3D + 4C Flow path: as per Basin 3C; L -3 R.E. North 5th to 2 +62 to culvert Note: flow time in pipe is negligible, thus excluded Tc COMPUTATIONS FOR: Basin RidN3 SHEET FLOW (Applicable to Tc only) Segment ID L -3,5th Surface description pervious Manning's roughness coeff., n 0.0300 Flow length, L (total < or = 300) ft 10.0 Two -yr 24 -hr rainfall, P2 in 1.400 Land slope, s ft /ft 0.2500 0.8 .007 * (n *L) T = hrs 0.00 = 0.00 0.5 0.4 P2 * s SHALLOW CONCENTRATED FLOW Segment ID N.slope Surface (paved or unpaved)? Unpaved Flow length, L ft 510.0 Watercourse slope, s ft /ft 0.0640 0.5 Avg.V = Csf * (s) where: Unpaved Csf = 16.1345 Paved Csf = 20.3282 T = L / (3600 *V) V 2/3 1/2 1.49 * r * s n Flow length, L T = L / (3600 *V) ft /s 4.0817 CHANNEL FLOW Segment ID gutter Cross Sectional Flow Area, a sq.ft 0.84 Wetted perimeter, Pw ft 8.00 Hydraulic radius, r = a /Pw ft 0.105 Channel slope, s ft /ft 0.0070 Manning's roughness coeff., n 0.0160 hrs 0.03 = 0.03 ft /s 1.7341 ft 283 hrs 0.05 T Z T3 = 0.05 TOTAL TIME (hrs) 0.08 I -G2 1 Quick TR -55 Version: 5.45 S /N: 1315460151 Page 1 Return Frequency: 50 years TR -55 TABULAR HYDROGRAPH METHOD ' Type II. Distribution (24 hr. Duration Storm) 1 -1 IE Subarea Description 'Basin RidN3 .1 1 _ 1 1 .1 _ I Subarea Description r esin RidM3 Executed: 04 -27 -1994 09:32:40 Watershed file: - -> RIDN3 .MOP Hydrograph file:.--> RIDN3- AX.HYD = I so -'r R, e io x A(S:S I Ridgemont Estates North - 3rd Addition Onsite drainage: Composite Basin RidN3 (3A +38+3C +3D +4C) 50 -year and 100 -year storm return frequencies NOTE: Peak discharge is 10x (as per 10x RCN values) >>>> Input Parameters Used to Compute Hydrograph «« AREA (acres) CN Tc * Tt Precip. I Runoff Ia /p (hrs) (hrs) (in) (in) input /used 128.22 69.0 0.10 0.00 2.40 1 0.38 I.37 .37 * Travel time from subarea outfall to composite watershed outfall point. I -- Subarea where user specified interpolation between Ia /p tables. Total area = 128.22 acres or 0.2003 sq.mi Peak discharge = 61 cfs »» Computer Modifications of Input Parameters ««< Input Values - Rounded Values Ia /p Tc * Tt Tc * Tt Interpolated (hr) (hr) (hr) (hr) (Yes /No) 0.10 0.00 * ** Yes Ia /p Messages * Travel time from subarea outfall to composite watershed outfall point. 1r * Tc & Tt are available in the.hydrograph tables. I -G3 1 1' 1 1 � 1 � 1 1' 1 � 1 � 1 1 � 1 1 1 1 i 1 1 Quick TR -55 Version: 5.45 S /N: 1315460151 Page 2 Return Frequency: 50 years Executed: 04 -27 -1994 09:32:40 Watershed file: - -> RIDN3 .MOP Hydrograph file: - -> RIDN3 - AX.HYD Ridgemont Estates North - 3rd Addition Onsite drainage: Composite Basin RidN3 (3A +38+3C +3D +4C) 50 -year and 100 -year storm return frequencies NOTE: Peak discharge is lox (as per.l0x RCN values) »» Summary of Subarea Times to Peak «« Subarea Basin RidN3 Composite Watershed TR -55 TABULAR HYDROGRAPH METHOD Type II. Distribution (24 hr. Duration Storm) Peak Discharge at Time to Peak at Composite Outfall Composite Outfall (cfs) (hrs) 61 12.1 61 12.1 1 -64 I -G5 ' Quick TR -55 Version: 5.45 S /N: 1315460151 Page 3 Return Frequency: 50 years TR -55 TABULAR HYDROGRAPH METHOD ' Type II. Distribution (24 hr. Duration Storm) ' Executed: 04 -27 -1994 09:32:40 Watershed file: - -> RIDN3 .MOP Hydrograph file: - -> RIDN3- AX.HYD I Ridgemont Estates North - 3rd Addition Onsite drainage: Composite Basin RidN3 (3A+3B +3C+3D +4C) 50 -year and 100 -year storm return frequencies II NOTE: Peak discharge is 10x (as per 10x RCN values) Composite Hydrograph Summary (cfs) Subarea 11.0 11.3 11.6 11.9 12.0 12.1 12.2 12.3 12.4 "Description hr hr hr hr hr hr hr hr hr Basin RidN3 0 0 0 8 30 61 36 16 13 I ota' (cfs) 0 0 0 8 30 61 36 16 13 Subarea 12.5 12.6 12.7 12.8 13.0 13.2 13.4 13.6 13.8 � Description hr hr hr hr hr hr hr hr hr asin RidN3 11 10 8 8 7 6 6 5 5 t otal (cfs) 11 10 8 8 7 6 6 5 5 IF Subarea 14.0 14.3 14.6 15.0 15.5 16.0 16.5 17.0 17.5 Description hr hr hr hr hr hr hr hr hr Basin RidN3 4 4 4 4 3 3 3 3 2 ` total (cfs) 4 4 4 4 3 3 3 3 2 Subarea 18.0 19.0 20.0 22.0 26.0 Description Ilasin RidN3 �otal (cfs) 2 2 2 2 0 hr hr hr hr hr 2 2 2 2 0 1 1- 1- 1- 1 1- 1- 1- 1- 1- 1- 1- 1 1- 1. 1' 1- 1- Quick TR -55 Version: 5.45 S /N: 1315460151 Page 4 Return Frequency: 50 years TR -55 TABULAR HYDROGRAPH METHOD Type II. Distribution (24 hr. Duration Storm) Executed: 04 -27 -1994 09:32:40 Watershed file: - -> RIDN3 .MOP Hydrograph file: - -> RIDN3 - AX.HYD Ridgemont Estates North - 3rd Addition Onsite drainage: Composite Basin RidN3 (3A +3B +3C +3D +4C) 50 -year and 100 -year storm return frequencies NOTE: Peak discharge is 10x (as per 10x RCN values) Time Flow Time Flow (hrs) (cfs) (hrs) (cfs) 11.0 0 14.8 4 11.1 0 14.9 4 11.2 0 15.0 4 11.3 0 15.1 4 11.4 0 15.2 4 11.5 0 15.3 3 11.6 0 15.4 3 11.7 3 15.5 3 11.8 5 15.6 3 11.9 8 15.7 3 12.0 30 15.8 3 12.1 61 15.9 3 12.2 36 16.0 3 12.3 16 16.1 3 12.4 13 16.2 3 12.5 11 16.3 3 12.6 10 16.4 3 12.7 8 16.5 3 12.8 8 16.6 3 12.9 8 16.7 3 13.0 7 16.8 3 13.1 6 16.9 3 13.2 6 17.0 3 13.3 6 17.1 3 13.4 -• 6 17.2 3 13.5 6 17.3 2 13.6 5 17.4 2 13.7 5 17.5 2 13.8 5 17.6 2 13.9 4 17.7 2 14.0 4 17.8 2 14.1 4 17.9 2 14.2 4 18.0 2 14.3 4 18.1 2 14.4 4 18.2 2 14.5 4 18.3 2 1 1 1 1 1 1- 1 1 1 1 1 1 1 1 1 1 1 1 14.6 4 18.4 2 14.7 4 18.5 2 Quick TR -55 Version: 5.45 S /N: 1315460151 Page 5 Return Frequency: 50 years TR -55 TABULAR HYDROGRAPH METHOD Type II. Distribution (24 hr. Duration Storm) Executed: 04 -27 -1994 09:32:40 Watershed file: - -> RIDN3 .MOP Hydrograph file: - -> RIDN3 - AX.HYD Ridgemont Estates North - 3rd Addition Onsite drainage: Composite Basin RidN3 (3A+3B+3C +3D +4C) 50 -year and 100 -year storm return frequencies NOTE: Peak discharge is 10x (as per 10x RCN values) Time Flow Time Flow (hrs) (cfs) (hrs) (cfs) 18.6 2 22.4 2 18.7 2 22.5 2 18.8 2 22.6 2 18.9 2 22.7 2 19.0 2 22.8 2 19.1 2 22.9 2 19.2 2 23.0 2 19.3 2 23.1 1 19.4 2 23.2 1 19.5 2 23.3 1 19.6 2 23.4 1 19.7 2 23.5 1 19.8 2 23.6 1 19.9 2 23.7 1 20.0 2 23.8 1 20.1 2 23.9 1 20.2 2 24.0 1 20.3 2 24.1 1 20.4 2 24.2 1 20.5 2 24.3 1 20.6 2 24.4 1 20.7 2 24.5 1 20.8 2 24.6 1 20.9 2 24.7 1 21.0 2 24.8 1 21.1._ 2 24.9 1 21.2 2 25.0 0 21.3 2 25.1 0 21.4 2 25.2 0 21.5 2 25.3 0 21.6 2 25.4 0 21.7 2 25.5 0 21.8 2 25.6 0 21.9 2 25.7 0 22.0 2 25.8 0 22.1 2 25.9 0 22.2 2 22.3 2 I -65 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Quick TR -55 Version: 5.45 S /N: 1315460151 Page 1 Return Frequency: 100 years ' Basin RidN3 0.10 TR -55 TABULAR HYDROGRAPH METHOD Type II. Distribution (24 hr. Duration Storm) Executed: 07 -01 -1994 11:32:59 Watershed file: - -> RIDN3 .MOP Hydrograph file: - -> RIDN3- BX.HYD 100 -YR, IOx .iKen: =. Ridgemont Estates North - 3rd Addition Onsite drainage: Composite Basin RidN3 (3A +3B +3C +3D +4C) 50 -year and 100 -year storm return frequencies NOTE: Peak discharge is . 10x (as per 10x. RCN values) I -G9 ' >>» Input Parameters Used to Compute Hydrograph <«< Subarea AREA CN Tc * Tt Precip. I Runoff Ia /p Description (acres) (hrs) (hrs) (in) (in) input /used 1 Basin RidN3 128.22 69.0 0.10 0.00 3.00 I 0.67 I.3 .30 * Travel time from subarea outfall to composite watershed outfall point. I -- Subarea where user specified interpolation between Ia /p tables. Total area = 128.22 acres or 0.2003 sq.mi Peak discharge = 126 cfs »» Computer Modifications of Input Parameters ««< Input Values Rounded Values Ia /p Subarea Tc * Tt Tc * Tt Interpolated Ia /p Description (hr) (hr) (hr) (hr) (Yes /No) Messages 0.00 ** ** Yes * Travel time from subarea outfall to composite watershed outfall point. ** Tc & Tt are available in the hydrograph tables. Quick TR -55 Version: 5.45 S /N: 1315460151 Page 2 Return Frequency: 100 years Executed: 07 -01 -1994 11:32:59 Watershed file: - -> RIDN3 .MOP Hydrograph file: - -> RIDN3 - BX.HYD Ridgemont Estates North - 3rd Addition Onsite drainage: Composite Basin RidN3 (3A +3B +3C +3D +4C) 50 -year and 100 -year storm return frequencies NOTE: Peak discharge is 10x (as per 10x RCN values) »» Summary of Subarea Times to Peak «« Subarea Basin RidN3 Composite Watershed TR -55 TABULAR HYDROGRAPH METHOD Type II. Distribution (24 hr. Duration Storm) Peak Discharge at Time to Peak at Composite Outfall Composite Outfall (cfs) (hrs) 126 12.1 126 12.1 h-'70 1 1 Quick TR -55 Version: 5.45 S /N: 1315460151 Page 3 Return Frequency: 100 years 1 1 1 1 1 Composite Hydrograph Summary (cfs) 1 TR -55 TABULAR HYDROGRAPH METHOD Type II. Distribution (24 hr. Duration Storm) Executed: 07 -01 -1994 11:32:59 Watershed file: - -> RIDN3 .MOP Hydrograph file: - -> RIDN3- BX.HYD Ridgemont Estates North - 3rd Addition Onsite drainage: Composite Basin RidN3 (3A +38+3C +3D +4C) 50 -year and 100 -year storm return frequencies NOTE: Peak discharge is lox (as per 10x RCN values) Subarea 11.0 11.3 11.6 11.9 12.0 12.1 12.2 12.3 12.4 1 Description hr hr hr hr hr hr hr hr hr Basin RidN3 0 0 0 21 76 126 70 29 23 t Total (cfs) 0 0 0 21 76 126 70 29 23 Subarea 12.5 12.6 12.7 12.8 13.0 13.2 13.4 13.6 13.8 I Description hr hr hr hr hr hr hr hr hr Basin RidN3 20 17 14 13 12 10 9 8 8 'Total (cfs) 20 17 14 13 12 10 9 8 8 1 Subarea 14.0 14.3 14.6 15.0 15.5 16.0 16.5 17.0 17.5 ' Description hr, hr hr hr hr hr hr hr hr Basin RidN3 7 6 6 6 5 5 4 4 4 'Total (cfs) 7 6 6 6 5 5 4 4 4 Subarea 18.0 19.0 20.0 22.0 26.0 Description hr hr hr hr hr 'Total (cfs) 1 ( Basin RidN3.. 4 3 3 3 0 4 3 3 3 0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Quick TR -55 Version: 5.45 S /N: 1315460151 Page 4 Return Frequency: 100 years TR -55 TABULAR HYDROGRAPH METHOD Type II. Distribution (24 hr. Duration Storm) Executed: 07 -01 -1994 11:32:59 Watershed file: - -> RIDN3 .MOP Hydrograph file: - -> RIDN3 - BX.HYD Ridgemont Estates North - 3rd Addition Onsite drainage: Composite Basin RidN3 (3A +3B +3C +3D +4C) 50 -year and 100 -year storm return frequencies NOTE: Peak discharge is 10x (as per 10x RCN values) Time Flow Time Flow (hrs) (cfs) (hrs) (cfs) 11.0 0 14.8 6 11.1 0 14.9 6 11.2 0 15.0 6 11.3 0 15.1 6 11.4 0 15.2 6 11.5 0 15.3 5 11.6 0 15.4 5 11.7 7 15.5 5 11.8 14 15.6 ' 5 11.9 21 15.7 5 12.0 76 15.8 5 12.1 126 15.9 5 12.2 70 16.0 5 12.3 29 16.1 5 12.4 23 16.2 5 12.5 20 16.3 4 12.6 17 16.4 4 12.7 14 16.5 4 12.8 13 16.6 4 12.9 12 16.7 4 13.0 12 16.8 4 13.1 11 16.9 4 13.2 10 17.0 4 13.3 9 17.1 4 13.4 9 17.2 4 13.5 9 17.3 4 13.6 8 17.4 4 13.7 8 17.5 4 13.8 8 17.6 4 13.9 8 17.7 4 14.0 7 17.8 4 14.1 7 17.9 4 14.2 6 18.0 4 14.3 6 18.1 4 14.4 6 18.2 4 14.5 6 18.3 4 14.6 6 18.4 4 14.7 6 18.5 4 I -73 I -744 e 1 11 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Quick TR -55 Version: 5.45 S /N: 1315460151 Page 5 Return Frequency: 100 years TR -55 TABULAR HYDROGRAPH METHOD • Type II. Distribution (24 hr. Duration Storm) Executed: 07 -01 -1994 11:32:59 Watershed file: - -> RIDN3 .MOP Hydrograph file: - -> RIDN3- BX.HYD Ridgemont Estates North - 3rd Addition Onsite drainage: Composite Basin RidN3 (3A+3B+3C +3D +4C) 50 -year and 100 -year storm return frequencies NOTE: Peak discharge is lox (as per 10x RCN values) Time Flow Time Flow (hrs) (cfs) (hrs) (cfs) 18.6 3 22.4 3 18.7 3 22.5 3 18.8 3 22.6 3 18.9 3 22.7 2 19.0 3 22.8 2 19.1 3 22.9 2 19.2 3 23.0 2 19.3 3 23.1 2 19.4 3 23.2 2 19.5 3 23.3 2 19.6 3 23.4 2 19.7 3 23.5 2 19.8 3 23.6 2 19.9 3 23.7 2 20.0 3 23.8 2 20.1 3 23.9 2 20.2 3 24.0 2 20.3 3 24.1 1 20.4 3 24.2 1 20.5 3 24.3 1 20.6 3 24.4 1 20.7 3 24.5 1 20.8 3 24.6 1 20.9 3 24.7 1 21.0 3 24.8 1 21.1 3 24.9 1 21.2 3 25.0 1 21.3 3 25.1 1 21.4 3 25.2 1 21.5 3 25.3 1 21.6 3 25.4 0 21.7 3 25.5 0 21.8 3 25.6 0 21.9 3 25.7 0 22.0 3 25.8 0 22.1 3 25.9 0 22.2 3 22.3 3 1 1 1 * * * ** Multiply Hydrograph by Constant * * * ** 1 it 1 1 1 1 1 1 1 1 1 1 1 1 1 POND -2 Version: 5.15 S /N: 1295160123 Page 1 Executed 04 -27 -1994 09:43:48 Unit .HYD File: RIDN3- AX.HYD Output Hydrograph: 50.HYD Multiplier Constant: .1 of -2ITE Co•MPnSITC h ruhl, rx,r 4.n TIME Unit Multiplier Output Hydrograph (hrs) Ordinates Constant (cfs) 11.00 0.00 x 0.100 = 0.00 11.10 0.00 x 0.100 = 0.00 11.20 0.00 x 0.100 = 0.00 11.30 0.00 x 0.100 = 0.00 11.40 0.00 x 0.100 = 0.00 11.50 0.00 x 0.100 = 0.00 11.60 0.00 x 0.100 = 0.00 11.70 3.00 x 0.100 = 0.30 11.80 5.00 x 0.100 = 0.50 11.90 8.00 x 0.100 = 0.80 12.00 30.00 x 0.100 = 3.00 12.10 61.00 x 0.100 = 6.10 12.20 , 36.00 x 0.100 = 3.60 12.30 16.00 x 0.100 = 1.60 12.40 13.00 x 0.100 = 1.30 12.50 11.00 x 0.100 = 1.10 12.60 10.00 x 0.100 = 1.00 12.70 8.00 x 0.100 = 0.80 12.80 8.00 x 0.100 = 0.80 12.90 8.00 x 0.100 = 0.80 13.00 7.00 x 0.100 = 0.70 13.10 6.00 x 0.100 = 0.60 13.20 6.00 x 0.100 = 0.60 13.30 6.00 x 0.100 = 0.60 13.40 6.00 x 0.100 = 0.60 13.50 6.00 x 0.100 = 0.60 13.60 5.00 x 0.100 = 0.50 13.70 5.00 x 0.100 = 0.50 13.80 5.00 x 0.100 = 0.50 13.90 4.00 x 0.100 = 0.40 14.00 4.00 x 0.100 = 0.40 14.10 4.00 x 0.100 = 0.40 14.20 4.00 x 0.100 = 0.40 14.30 4.00 x 0.100 = 0.40 14.40 4.00 x 0.100 = 0.40 14.50 4.00 x 0.100 = 0.40 14.60 4.00 x 0.100 = 0.40 14.70 4.00 x 0.100 = 0.40 14.80 4.00 x 0.100 = 0.40 14.90 4.00 x 0.100 = 0.40 15.00 4.00 x 0.100 = 0.40 15.10 4.00 x 0.100 = 0.40 1 -75 1 1 1� 1 1 1 11 1 1 1 1 1 1 1 11 1 11 POND -2 Version: 5.15 S /N: 1295160123 Page 2 Executed 04 -27 -1994 09:43:48 * * * ** Multiply Hydrograph by Constant * * * ** Unit .HYD File: RIDN3- AX.HYD Output Hydrograph: RIDN3- 50.HYD Multiplier Constant: .1 TIME Unit Multiplier Output Hydrograph (hrs) Ordinates Constant (cfs) 15.20 4.00 x 0.100 = 0.40 15.30 3.00 x 0.100 = 0.30 15.40 3.00 x 0.100 = 0.30 15.50 3.00 x 0.100 = 0.30 15.60 3.00 x 0.100 = 0.30 15.70 3.00 x 0.100 = 0.30 15.80 3.00 x 0.100 = 0.30 15.90 3.00 x 0.100 = 0.30 16.00 3.00 x 0.100 = 0.30 16.10 3.00 x 0.100 = 0.30 16.20 3.00 x 0.100 = 0.30 16.30 3.00 x 0.100 = 0.30 16.40 3.00 x 0.100 = 0.30 16.50 3.00 x 0.100 = 0.30 16.60 3.00 x 0.100 = 0.30 16.70 3.00 x 0.100 = 0.30 16.80 3.00 x 0.100 = 0.30 16.90 3.00 x 0.100 = 0.30 17.00 3.00 x 0.100 = 0.30 17.10 3.00 x 0.100 = 0.30 17.20 3.00 x 0.100 = 0.30 17.30 2.00 x 0.100 = 0.20 17.40 2.00 x 0.100 = 0.20 17.50 2.00 x 0.100 = 0.20 17.60 2.00 x 0.100 = 0.20 17.70 2.00 x 0.100 = 0.20 17.80 2.00 x 0.100 = 0.20 17.90 2.00 x 0.100 = 0.20 18.00 2.00 x 0.100 = 0.20 18.10 2.00 x 0.100 = 0.20 18.20 2.00 x 0.100 = 0.20 18.30 2.00 x 0.100 = 0.20 18.40 2.00 x 0.100 = 0.20 18.50 2.00 x 0.100 = 0.20 18.60 2.00 x 0.100 = 0.20 18.70 2.00 x 0.100 = 0.20 18.80 2.00 x 0.100 = 0.20 18.90 2.00 x 0.100 = 0.20 19.00 2.00 x 0.100 = 0.20 19.10 2.00 x 0.100 = 0.20 19.20 2.00 x 0.100 = 0.20 1 -76 1 1 1 * * * ** Multiply Hydrograph by Constant * * * ** 1 1 1 1 m 11 1 1 1 1 1 1 1 1 POND -2 Version: 5.15 S /N: 1295160123 Page 3 Executed 04 -27 -1994 09:43:48 Unit .HYD File: RIDN3- AX.HYD Output Hydrograph: RIDN3- 50.HYD Multiplier Constant: .1 TIME Unit Multiplier Output Hydrograph (hrs) Ordinates Constant (cfs) 19.30 2.00 x 0.100 = 0.20 19.40 2.00 x 0.100 = 0.20 19.50 2.00 x 0.100 = 0.20 19.60 2.00 x 0.100 = 0.20 19.70 2.00 x 0.100 = 0.20 19.80 2.00 x 0.100 = 0.20 19.90 2.00 x 0.100 = 0.20 20.00 2.00 x 0.100 = 0.20 20.10 2.00 x 0.100 = 0.20 20.20 2.00 x 0.100 = 0.20 20.30 2.00 x 0.100 = 0.20 20.40 2.00 x 0.100 = 0.20 20.50 2.00 x 0.100 = 0.20 20.60 2.00 x 0.100 = 0.20 20.70 2.00 x 0.100 = 0.20 20.80 2.00 x 0.100 = 0.20 20.90 2.00 x 0.100 = 0.20 21.00 2.00 x 0.100 = 0.20 21.10 2.00 x 0.100 = 0.20 21.20 2.00 x 0.100 = 0.20 21.30 2.00 x 0.100 = 0.20 21.40 2.00 x 0.100 = 0.20 21.50 2.00 x 0.100 = 0.20 21.60 2.00 x 0.100 = 0.20 21.70 2.00 x 0.100 = 0.20 21.80 2.00 x 0.100 = 0.20 21.90 2.00 x 0.100 = 0.20 22.00 2.00 x 0.100 = 0.20 22.10 2.00 x 0.100 = 0.20 22.20 2.00 x 0.100 = 0.20 22.30 2.00 x 0.100 = 0.20 22.40 2.00 x 0.100 = 0.20 22.50 2.00 x 0.100 = 0.20 22.60 2.00 x 0.100 = 0.20 22.70 2.00 x 0.100 = 0.20 22.80 2.00 x 0.100 = 0.20 22.90 2.00 x 0.100 = 0.20 23.00 2.00 x 0.100 = 0.20 23.10 1.00 x 0.100 = 0.10 23.20 1.00 x 0.100 = 0.10 23.30 1.00 x 0.100 = 0.10 1 -77 POND -2 Version: 5.15 S /N: 1295160123 Page 4 Executed 04 -27 -1994 09:43:48 * * * ** Multiply Hydrograph by Constant * * * ** Unit ..HYD File: RIDN3- AX.HYD Output Hydrograph: RIDN3- 50.HYD Multiplier Constant: .1 TIME Unit Multiplier Output Hydrograph (hrs) Ordinates Constant (cfs) 23.40 1.00 x 0.100 = 0.10 23.50 1.00 x 0.100 = 0.10 23.60 1.00 x 0.100 = 0.10 23.70 1.00 x 0.100 = 0.10 23.80 1.00 x 0.100 = 0.10 23.90 1.00 x 0.100 = 0.10 24.00 1.00 x 0.100 = 0.10 24.10 1.00 x 0.100 = 0.10 24.20 1.00 x 0.100 = 0.10 24.30 1.00 x 0.100 = 0.10 24.40 1.00 x 0.100 = 0.10 24.50 1.00 x 0.100 = 0.10 24.60 1.00 x 0.100 = 0.10 24.70 1.00 x 0.100 = 0.10 24.80 1.00 x 0.100 = 0.10 24.90 1.00 x 0.100 = 0.10 25.00 0.00 x 0.100 = 0.00 25.10 0.00 x 0.100 = 0.00 25.20 0.00 x 0.100 = 0.00 25.30 0.00 x 0.100 = 0.00 25.40 0.00 x 0.100 = 0.00 25.50 0.00 x 0.100 = 0.00 25.60 0.00 x 0.100 = 0.00 25.70 0.00 x 0.100 = 0.00 25.80 0.00, . x 0.100 = 0.00 25.90 0.00 x 0.100 = 0.00 1-78 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 POND-2 Version: 5.15 S /N: 1295160123 Executed 07 -01 -1994 11:37:17 Unit .HYD File: RIDN3- BX.HYD Output Hydrograph: RIDN3- 00.HYD Multiplier Constant: .1 TIME (hrs) 11.00 11.10 11.20 11.30 11.40 11.50 11.60 11.70 11.80 11.90 12.00 12.10 12.20 12.30 12.40 12.50 12.60 12.70 12.80 12.90 13.00 13.10 13.20 13.30 13.40 13.50 13.60 13.70 13.80 13.90 14.00 14.10 14.20 14.30 14.40 14.50 14.60 14.70 14.80 14.90 15.00 15.10 * * * ** Multiply Hydrograph by Constant * * * ** Unit Ordinates 0.00 0.00 0.00 0.00 0.00 0.00 0.00 7.00 14.00 21.00 76.00 126.00 70.00 29.00 23.00 20.00 17.00 14.00 13.00 12.00 12.00 11.00 10.00 9.00 9.00 9.00 8.00 8.00 8.00 8.00 7.00 7.00 6.00 6.00 6.00 6.00 6.00 6.00 6.00 6.00 6.00 6.00 Multiplier Constant 0.100 0.100 0.100 0.100 0.100 0.100 0.100 0.100 0.100 0.100 0.100 0.100 0.100 0.100 0.100 0.100 0.100 0.100 0.100 0.100 0.100 0.100 0.100 0.100 0.100 0.100 0.100 0.100 0.100 0.100 0.100 0.100 0.100 0.100 0.100 0.100 0.100 0.100 0.100 0.100 0.100 0.100 Page 1 Output Hydrograph (cfs) = 0.00 = 0.00 0.00 = 0.00 0.00 0.00 0.00 = 0.70 1.40 2.10 7.60 12.60 7.00 = 2.90 2.30 = 2.00 1.70 1.40 1.30 1.20 = 1.20 1.10 1.00 = 0.90 0.90 = 0.90 = 0.80 0.80 = 0.80 0.80 0.70 0.70 0.60 0.60 = 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.60 I -79 Or.l -SITE COMPOSITE 160 - /CA 51tR.'1 „ Acr r, " ARS.A5 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 .1 1 POND -2 Version: 5.15 S /N: 1295160123 Page 2 Executed 07 -01 -1994 11:37:17 * * * ** Multiply Hydrograph by Constant * * * ** Unit .HYD File: RIDN3- BX.HYD Output Hydrograph: RIDN3- 00.HYD Multiplier Constant: .1 TIME Unit Multiplier Output Hydrograph (hrs) Ordinates Constant (cfs) 15.20 6.00 x 0.100 = 0.60 15.30 5.00 x 0.100 = 0.50 15.40 5.00 x 0.100 = 0.50 15.50 5.00 x 0.100 = 0.50 15.60 5.00 x 0.100 = 0.50 15.70 5.00 x 0.100 = 0.50 15.80 5.00 x 0.100 = 0.50 15.90 5.00 x 0.100 = 0.50 16.00 5.00 x 0.100 = 0.50 16.10 5.00 x 0.100 = 0.50 16.20 5.00 x 0.100 = 0.50 16.30 4.00 x 0.100 = 0.40 16.40 4.00 x 0.100 = 0.40 16.50 4.00 x 0.100 = 0.40 16.60 4.00 x 0.100 = 0.40 16.70 4.00 x 0.100 = 0.40 16.80 4.00 x 0.100 = 0.40 16.90 4.00 x 0.100 = 0.40 17.00 4.00 x 0.100 = 0.40 17.10 4.00 x 0.100 = 0.40 17.20 4.00 x 0.100 = 0.40 17.30 4.00 x 0.100 = 0.40 17.40 4.00 x 0.100 = 0.40 17.50 4.00. x 0.100 = 0.40 17.60 4.00 x 0.100 = 0.40 17.70 4.00 x 0.100 = 0.40 17.80 4.00 x 0.100 = 0.40 17.90 4.00 x 0.100 = 0.40 18.00 4.00 x 0.100 = 0.40 18.10 4.00 x 0.100 = 0.40 18.20 4.00 x 0.100 = 0.40 18.30 4.00 x 0.100 = 0.40 18.40 4.00 x 0.100 = 0.40 18.50 4.00 x 0.100 = 0.40 18.60 3.00 x 0.100 = 0.30 18.70 3.00 x 0.100 = 0.30 18.80 3.00 x 0.100 = 0.30 18.90 3.00 x 0.100 = 0.30 19.00 3.00 x 0.100 = 0.30 19.10 3.00 x 0.100 = 0.30 19.20 3.00 x 0.100 = 0.30 I -80 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 POND -2 Version: 5.15 S /N: 1295160123 Page 3 Executed 07 -01 -1994 11:37:17 * * * ** Multiply Hydrograph by Constant * * * ** Unit..HYD File: RIDN3- BX.HYD Output Hydrograph: RIDN3- 00.HYD Multiplier Constant:..1 TIME Unit Multiplier Output Hydrograph (hrs) Ordinates Constant (cfs) 19.30 19.40 19.50 19.60 19.70 19.80 19.90 20.00 20.10 20.20 20.30 20.40 20.50 20.60 20.70 20.80 20.90 21.00 21.10 21.20 21.30 21.40 21.50 21.60 21.70 21.80 21.90 22.00 22.10 22.20 22.30 22.40 22.50 22.60 22.70 22.80 22.90 23.00 23.10 23.20 23.30 3.00 x 0.100 3.00 x 0.100 3.00 x 0.100 3.00 x 0.100 3.00 x 0.100 3.00 x 0.100 3.00 x 0.100 3.00 x 0.100 3.00 x 0.100 3.00 x 0.100 3.00 x 0.100 3.00 x 0.100 3.00 x 0.100 3.00 x 0.100 3.00 x 0.100 3.00 x 0.100 3.00 x 0.100 3.00 x 0.100 3.00 x 0.100 3.00 x 0.100 3.00 x 0.100 3.00 x 0.100 3.00 x 0.100 3.00 x 0.100 3.00 x 0.100 3.00 x 0.100 3.00 x 0.100 3.00 x 0.100 3.00 x 0.100 3.00 x 0.100 3.00 x 0.100 3.00 x 0.100 3.00 x 0.100 3.00 x 0.100 2.00 x 0.100 2.00 x 0.100 2.00 x 0.100 2.00 x 0.100 2.00 x 0.100 2.00 x 0..100 2.00 x 0.100 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 O .30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 O .30 0.30 0.30 0.30 0.30 0.30 O .30 0.20 O .20 0.20 0.20 0.20 0.20 0.20 I-81 POND -2 Version: 5.15 S /N: 1295160123 Executed 07 -01 -1994 11:37:17 * * * ** Multiply Hydrograph by Constant * * * ** Unit .HYD File: RIDN3- IIX.HYD Output Hydrograph: RIDN3- 00.HYD Multiplier Constant: .1 Page 4 TIME. Unit Multiplier Output Hydrograph (hrs) Ordinates Constant (cfs) 23.40 2.00 x 0.100 = 0.20 23.50 2.00 x 0.100 = 0.20 23.60 2.00 x 0.100 = 0.20 23.70 2.00 x 0.100 = 0.20 23.80 2.00 x 0.100 = 0.20 23.90 2.00 x 0.100 = 0.20 24.00 2.00 x 0.100 = 0.20 24.10 1.00 x 0.100 = 0.10 24.20 1.00 x 0.100 = 0.10 24.30 1.00 x 0.100 = 0.10 24.40 1.00 x 0.100 = 0.10 24.50 1.00 x 0.100 = 0.10 24.60 1.00 x 0.100 = 0.10 24.70 1.00 x 0.100 = 0.10 24.80 1.00 x 0.100 = 0.10 24.90 1.00 x 0.100 = 0.10 25.00 1.00 x 0.100 = 0.10 25.10 1.00 x 0.100 = 0.10 25.20 1.00 x 0.100 = 0.10 25.30 1.00 x 0.100 = 0.10 25:40 0.00 x 0.100 = 0.00 25.50 0.00 x 0.100 = 0.00 25.60 0.00 x 0.100 = 0.00 25.70 0.00 x 0.100 = 0.00 25.80 0.00 x 0.100 = 0.00 25.90 0.00 x 0.100 = 0.00 1 -82_ POND -2 Version: 5.15 S /N: 1295160123 Page 1 of 4 Executed 04 -27 -1994 10:07:38 Data directory: *.HYD File Summary for Composite Hydrograph Time RENZ1-50 RENZ2-50 RENZC -50 (hrs) (cfs) (cfs) (Total) 11.00 0.0 0.0 0.0 11.10 0.0 0.0 0.0 11.20 0.0 0.0 0.0 11.30 0.0 0.0 0.0 11.40 0.0 0.0 0.0 11.50 0.0 0.0 0.0 11.60 0.0 0.0 0.0 11.70 0.1 0.1 0.2 11.80 0.1 0.2 0.3 11.90 0.2 0.3 0.5 12.00 0.9 1.6 2.5 12.10 3.0 5.1 8.1 12.20 1.9 7.5 9.4 12.30 0.9 5.6 6.5 12.40 0.8 3.2 4.0 12.50 0.7 2.4 3.1 12.60 0.6 2.0 2.6 12.70 0.5 1.7 2.2 12.80 0.5 1.4 1.9 12.90 0.4 1.3 1.7 13.00 0.4 1.2 1.6 13.10 0.4 1.2 1.6 13.20 0.4 1.1 1.5 13.30 0.4 1.0 1.4 13.40 0.4 1.0 1.4 13.50 0.4 1.0 1.4 13.60 0.3 0.9 1.2 13.70 0.3 0.8 1.1 13.80 0.3 0.8 1.1 13.90 0.3 0.8 1.1 14.00 0.3 0.7 1.0 14.10 0.3 0.7 1.0 14.20 0.3 0.7 1.0 14.30 0.3 0.7 1.0 14.40 0.3 0.7 1.0 14.50 0.3 0.6 0.9 14.60 0.3 0.6 0.9 14.70 0.3 0.6 0.9 14.80 0.2 0.6 0.8 14.90 0.2 0.6 0.8 0 FEZ CVE So - `l EAR. I-B3 J 1 1 1 1 1 1 1 1 1 1 1 _ 1 1 _1 -1 1 1 POND -2 Version: 5.15 S /N: 1295160123 Executed 04 -27 -1994 10:07:38 Data directory: *.HYD File Summary for Composite Hydrograph Time RENZ1-50 RENZ2-50 RENZC -50 (hrs) (cfs) (cfs) (Total) 15.00 0.2 0.6 0.8 15.10 0.2 0.6 0.8 15.20 0.2 0.6 0.8 15.30 0.2 0.5 0.7 15.40 0.2 0.5 0.7 15.50 0.2 0.5 0.7 15.60 0.2 0.5 0.7 15.70 0.2 0.5 0.7 15.80 0.2 0.5 0.7 15.90 0.2 0.5 0.7 16.00 0.2 0.5 0.7 16.10 0.2 0.5 0.7 16.20 0.2 0.5 0.7 16.30 0.2 0.4 0.6 16.40 0.2 0.4 0.6 16.50 0.2 0.4 0.6 16.60 0.2 0.4 0.6 16.70 0.2 0.4 0.6 16.80 0.2 0.4 0.6 16.90 0.2 0.4 0.6 17.00 0.2 0.4 0.6 17.10 0.2 0.4 0.6 17.20 0.2 0.4 0.6 17.30 0.2 0.4 0.6 17.40 0.2 0.4 0.6 17.50 0.2 0.4 0.6 17.60 0.2 0.4 0.6 17.70 0.2 0.4 0.6 17.80 0.2 0.4 0.6 17.90 0.2 0.4 0.6 18.00 0.2 0.4 0.6 18.10 0.2 0.4 0.6 18.20 0.2 0.4 0.6 18.30 0.2 0.4 0.6 18.40 0.2 0.4 0.6 18.50 0.2 0.4 0.6 18.60 0.1 0.3 0.4 18.70 0.1 0.3 0.4 18.80 0.1 0.3 0.4 18.90 0.1 0.3 0.4 19.00 0.1 0.3 0.4 Page 2 of 4 POND -2 Version: 5.15 S /N: 1295160123 Page 3 of 4 Executed 04 -27 -1994 10:07:38 Data directory: *.HYD File Summary for Composite Hydrograph Time RENZ1 -50 RENZ2-50 RENZC -50 (hrs) (cfs) (cfs) (Total) 19.10 0.1 0.3 0.4 19.20 ,0.1 0.3 0.4 19.30 0.1 0.3 0.4 19.40 0.1 0.3 0.4 19.50 0.1 0.3 0.4 19.60 0.1 0.3 0.4 19.70 0.1 0.3 0.4 19.80 0.1 0.3 0.4 19.90 0.1 0.3 0.4 20.00 0.1 0.3 0.4 20.10 0.1 0.3 0.4 20.20 0.1 0.3 0.4 20.30 0.1 0.3 0.4 20.40 0.1 0.3 0.4 20.50 0.1 0.3 0.4 20.60 0.1 0.3 0.4 20.70 0.1 0.3 0.4 20.80 0.1 0.3 0.4 20.90 0.1 0.3 0.4 21.00 0.1 0.3 0.4 21.10 0.1 0.3 0.4 21.20 0.1 0.3 0.4 21.30 0.1 0.3 0.4 21.40 0.1 0.3 0.4 21.50 0.1 0.3 0.4 21.60 0.1 0.3 0.4 21.70 0.1 0.3 0.4 21.80 0.1 0.3 0.4 21.90 0.1 0.3 0.4 22.00 0.1 0.3 - 0.4 22.10 0.1 0.3 0.4 22.20 0.1 0.3 0.4 22.30 0.1 0.3 0.4 22.40 0.1 0.3 0.4 22.50 0.1 0.3 0.4 22.60 0.1 0.3 0.4 22.70 0.1 0.2 0.3 22.80 0.1 0.2 0.3 22.90 0.1 0.2 0.3 23.00 0.1 0.2 0.3 23.10 0.1 0.2 0.3 I -65 POND -2 Version: 5.15 S /N: 1295160123 Executed 04 -27 -1994 10:28:19 Data directory: *.HYD File Summary for Composite Hydrograph Time RENZ1-50 RENZ2-50 RENZC -50 (hrs) (cfs) (cfs) (Total) 23.20 23.30 23.40 23.50 23.60 23.70 23.80 23.90 24.00 24.10 24.20 24.30 24.40 24.50 24.60 24.70 24.80 24.90 25.00 25.10 25.20 25.30 25.40 25.50 25.60 25.70 25.80 25.90 26.00 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.2 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.0 0.0 0.0 0.0 0.0 0.0 0.0 Page 4 of 4 I- 8G POND -2 Version: 5.15 S /N: 1295160123 Page 1 of 4 Executed 07 -01 -1994 11:49:10 Data directory: *.HYD File Summary for Composite Hydrograph Time RENZ1-00 RENZ2-00 RENZC -00 (hrs) (cfs) (cfs) (Total) 11.00 11.10 11.20 11.30 11.40 11.50 11.60 11.70 11.80 11.90 12.00 12.10 12.20 12.30 12.40 12.50 12.60 12.70 12.80 12.90 13.00 13.10 13.20 13.30 13.40 13.50 13.60 13.70 13.80 13.90 14.00 14.10 14.20 14.30 14.40 14.50 14.60 14.70 14.80 14.90 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.3 0.7 1.0 3.8 7.4 4.4 1.9 1.6 1.4 1.2 1.0 0.9 0.8 0.8 0.8 0.7 0.7 0.7 0.7 0.6 0.6 0.6 0.6 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5. 0.4 0.4 0.0 0.0 0.0 0.0 0.0 0.1 0.1 0.4 0.7 1.0 4.1 12.0 15.2 10.8 6.0 4.3 3.4 2.8 2.4 2.2 2.0 1.8 1.7 1.6 1.6 1.5 1.4 1.4 1.3 1.2 1.2 1.1 1.1 1.0 1.0 1.0 1.0 1.0 0.9 0.9 0.0 0.0 0.0 0.0 0.0 0.1 0.1 0.7 1.4 2.0 7.9 19.4 19.6 12.7 7.6 5.7 4.6 3.8 3.3 3.0 2.8 2.6 2.4 2.3 2.3 2.2 2.0 2.0 1.9 1.8 1.7 1.6 1.6 1.5 1.5 1.5 1.5 1.5 1.3 1.3 GP F51 TE COMPOSITE 100 - Yr-Ar: 1-51 POND -2 Version: 5.15 S /N: 1295160123 Page 2 of 4 Executed 07 -01 -1994 11:49:10 Data directory: *.HYD File Summary for Composite Hydrograph Time RENZ1-00 RENZ2-00 RENZC -00 (hrs) (cfs) (cfs) (Total) 15.00 15.10 15.20 15.30 15.40 15.50 15.60 15.70 15.80 15.90 16.00 16.10 16.20 16.30 16.40 16.50 16.60 16.70 16.80 16.90 17.00 17.10 17.20 17.30 17.40 17.50 17.60 17.70 17.80 17.90 18.00 18.10 18.20 18.30 18.40 18.50 18.60 18.70 18.80 18.90 19.00 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.2 0.2 0.2 0.2 0.2 0.2 0.9 0.9 0.9 0.8 0.8 0.8 0.8 0.8 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.5 0.5 0.5 0.5 0.5 2.3 1.3 1.3 1.2 1.2 1.2 1.2 1.2 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.8 0.7 0.7 0.7 0.7 0.7 j -b5 POND -2 Version: 5.15 S /N: 1295160123 Page 3 of 4 Executed 07 -01 -1994 11:49:10 Data directory: *.HYD File Summary for Composite Hydrograph Time RENZ1-00 RENZ2 -00 RENZC -00 (hrs) (cfs) (cfs) (Total) 19.10 19.20 19.30 19.40 19.50 19.60 19.70 19.80 19.90 20.00 20.10 20.20 20.30 20.40 20.50 20.60 20.70 20.80 20.90 21.00 21.10 21.20 21.30 21.40 21.50 21.60 21.70 21.80 21.90 22.00 22.10 22.20 22.30 22.40 22.50 22.60 22.70 22.80 22.90 23.00 23.10 0.2 0.5 0.2 0.5 0.2 0.5 0.2 0.5 0.2 0.4 0.2 0.4 0.2 0.4 0.2 0.4 0.2 0.4 0.2 0.4 0.2 0.4 0.2 0.4 0.2 0.4 0.2 0.4 0.2 0.4 0.2 0.4 0.2 0.4 0.2 0.4 0.2 0.4 0.2 0.4 0.2 0.4 0.2 0.4 0.2 0.4 0.2 0.4 0.2 0.4 0.2 0.4 0.2 0.4 0.2 0.4 0.2 0.4 0.2 0.4 0.2 0.4 0.2 0.4 0.2 0.4 0.2 0.4 0.2 0.4 0..2 0.3 0.2 0.3 0.2 0.3 0.2 0.3 0.2 0.3 0.1 0.3 0.7 0.7 0.7 O .7 0.6 0.6 0.6 0.6 0.6 O .6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 O .6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.5 0.5 0.5 0.5 0.5 0.4 1 -c9 POND -2 Version: 5.15 S /N: 1295160123 Page 4 of 4 Executed 07 -01 -1994 11:49:10 Data directory: *.HYD File Summary for Composite Hydrograph Time RENZ1-00 RENZ2 -00 RENZC -00 (hrs) (cfs) (cfs) (Total) 23.20 23.30 23.40 23.50 23.60 23.70 23.80 23.90 24.00 24.10 24.20 24.30 24.40 24.50 24.60 24.70 24.80 24.90 25.00 25.10 25.20 25.30 25.40 25.50 25.60 25.70 25.80 25.90 26.00 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.3 0.4 0.3 0.4 0.3 0.4 0.2 0.3 0.2 0.3 0.2 0.3 0.2 0.3 0.2 0.3 0.2 0.3 0.2 0.3 0.2 0.3 0.2 0.3 0.2 0.3 0.2 0.3 0.1 0.2 0.1 0.2 0.1 0.2 0.1 0.2 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 1-90 POND -2 Version: 5.15 S /N: 1295160123 Page 1 of 4 Executed 04 -27 -1994 10:37:20 Data directory: *.HYD File Summary for Composite Hydrograph Time RIDN3 -50 RENZC -50 REN3A -50 (hrs) (cfs) (cfs) (Total) 11.00 0.0 0.0 0.0 11.10 ,0.0, 0.0 0.0 11.20 0.0 0.0 0.0 11.30 0.0 0.0 0.0 11.40 0.0 0.0 0.0 11.50 0.0 0.0 0.0 11.60 0.0 0.0 0.0 11.70 0.3 0.2 0.5 11.80 0.5 0.3 0.8 11.90 0.8 0.5 1.3 12.00 3.0 2.5 5.5 12.10 6.1 8.1 14.2 12.20 3.6 9.4 13.0 12.30 1.6 6.5 8.1 12.40 1.3 4.0 5.3 12.50 1.1 3.1 4.2 12.60 1.0 2.6 3.6 12.70 0.8 2.2 3.0 12.80 0.8 1.9 2.7 12.90 0.8 1.7 2.5 13.00 0.7 1.6 2.3 13.10 0.6 1.6 2.2 13.20 0.6 1.5 2.1 13.30 0.6 1.4 2.0 13.40 0.6 1.4 2.0 13.50 0.6 1.4 2.0 13.60 0.5 1.2 1.7 13.70 0.5 1.1, 1.6 13.80 0.5 1.1 1.6 13.90 0.4 1.1 1.5 14.00 0.4 1.0 1.4 14.10 0.4 1.0 1.4 14.20 0.4 1.0 1.4 14.30 0.4 1.0 1.4 14.40 0.4 1.0 1.4 14.50 0.4 0.9 1.3 14.60 0.4 0.9 1.3 14.70 0.4 0.9 1.3 14.80 0.4 0.8 1.2 14.90 0.4 0.8 1.2 ow-Sire oF-stTc F EM. R ouTNG lH {cnuGN Po t4L' ? h 1 -91 POND -2 Version: 5.15 S /N: 1295160123 Page 2 of 4 Executed 04 -27 -1994 10:37:20 Data directory: *.HYD File Summary for Composite Hydrograph Time RIDN3 -50 RENZC -50 REN3A -50 (hrs) (cfs) (cfs) (Total) 15.00 15.10 15.20 15.30 15.40 15.50 15.60 15.70 15.80 15.90 16.00 16.10 16.20 16.30 16.40 16.50 16.60 16.70 16.80 16.90 17.00 17.10 17.20 17.30 17.40 17.50 17.60 17.70 17.80 17.90 18.00 18.10 18.20 18.30 18.40 18.50 18.60 18.70 18.80 18.90 19.00 0.4 0.4 0.4 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.8 0.8 0.8 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.4 0.4 0.4 0.4 0.4 1.2 1.2 1.2 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.6 0.6 0.6 0.6 0.6 1 -92 POND -2 Version: 5.15 S /N: 1295160123 Executed 04 -27 -1994 10:37:20 Data directory: *.HYD File Summary for Composite Hydrograph Time RIDN3 -50 RENZC -50 REN3A -50 (hrs) (cfs) (cfs) (Total) 19.10 19.20 19.30 19.40 19.50 19.60 19.70 19.80 19.90 20.00 20.10 20.20 20.30 20.40 20.50 20.60 20.70 20.80 20.90 21.00 21.10 21.20 21.30 21.40 21.50 21.60 21.70 21.80 21.90 22.00 22.10 22.20 22.30 22.40 22.50 22.60 22.70 22.80 22.90 23.00 23.10 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2. 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.1 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.3 0.3 0.3 0.3 0.3 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.5 0.5 0.5 0.5 0.4 Page 3 of 4 1-73 POND -2 Version: 5.15 S /N: 1295160123 Executed 04 -27 -1994 10:37:20 Data directory: *.HYD File Summary for Composite Hydrograph Time RIDN3 -50 RENZC -50 REN3A -50 (hrs) (cfs) (cfs) (Total) 23.20 23.30 23.40 23.50 23.60 23.70 23.80 23.90 24.00 24.10 24.20 24.30 24.40 24.50 24.60 24.70 24.80 24.90 25.00 25.10 25.20 25.30 25.40 25.50 25.60 25.70 25.80 25.90 26.00 0.1 0.1 0.1 0.1 0.1 ' 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.2 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.3 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.1 0.1 0.1 0.1 0.0 0.0 0.0 0.0 0.0 0.0 0.0 Page 4 of 4 I-94 POND -2 Version: 5.15 S /N: 1295160123 Page 1 of 4 Executed 07 -01 -1994 11:53:09 Data directory: *.HYD File Summary for Composite Hydrograph Time RIDN3 -00 RENZC -00 REN3A -00 (hrs (cfs). (cfs) (Total) 11.00 0.0 0.0 0.0 11.10 0.0 0.0 0.0 11.20 0.0 0.0 0.0 11.30 0.0 0.0 0.0 11.40 0.0 0.0 0.0 11.50 0.0 0.1 0.1 11.60 0.0 0.1 0.1 11.70 0.7 0.7 1.4 11.80 1.4 1.4 2.8 11.90 2.1 2.0 4.1 12.00 7.6 7.9 15.5 12.10 12.6 19.4 32.0 12.20 7.0 19.6 26.6 12.30 2.9 12.7 15.6 12.40 2.3 7.6 9.9 12.50 2.0 5.7 7.7 12.60 1.7 4.6 6.3 12.70 1.4 3.8 5.2 12.80 1.3 3.3 4.6 12.90 1.2 3.0 4.2 13.00 1.2 2.8 4.0 13.10 1.1 2.6 3.7 13.20 1.0 2.4 3.4 13.30 0.9 2.3 3.2 13.40 0.9 2.3 3.2 13.50 0.9 2.2 3.1 13.60 0.8 2.0 2.8 13.70 0.8 2.0 2.8 13.80 0.8 1.9 2.7 13.90 0.8 1.8 2.6 14.00 0.7 1.7 2.4 14.10 0.7 1.6 2.3 14.20 0.6 1.6 2.2 14.30 0.6 1.5 2.1 14.40 0.6 1.5 2.1 14.50 0.6 1.5 2.1 14.60 0.6 1.5 2.1 14.70 0.6 1.5 2.1 14.80 0.6 1.3 1.9 14.90 0.6 1.3 1.9 0i4 -5ITE OFF-SiTt COMPOSITE loc- 'EAR F« ro niouc7N Pc4D 2A POND -2 Version: 5.15 S /N: 1295160123 Executed 07 -01 -1994 11:53:09 Data directory: *.HYD File Summary for Composite Hydrograph Time RIDN3 -00 RENZC -00 REN3A -00 (hrs) (cfs) (cfs) (Total) 15.00 0.6 1.3 15.10 0.6 1.3 15.20 0.6 1.3 15.30 0.5 1.2 15.40 0.5 1.2 15.50 0.5 1.2 15.60 0.5 1.2 15.70 0.5 1.2 15.80 0.5 1.0 15.90 0.5 1.0 16.00 0.5 1.0 16.10 0.5 1.0 16.20 0.5 1.0 16.30 0.4 1.0 16.40 0.4 1.0 16.50 0.4 1.0 16.60 0.4 1.0 16.70 0.4 1.0 16.80 0.4 0.9 16.90 0.4 0.9 17.00 0.4 0.9 17.10 0.4 0.9 17.20 0.4 0.9 17.30 0.4 0.9 17.40 0.4 0.9 17.50 0.4 0.9 17.60 0.4 0.9 17.70 0.4 0.9 17.80 0.4 0.9 17.90 0.4 0.9 18.00 0.4 0.9 18.10 0.4 0.9 18.20 0.4 0.9 18.30 0.4 0.9 18.40 0.4 0.9 18.50 0.4 0.8 18.60 0.3 0.7 18.70 0.3 0.7 18.80 0.3 0.7 18.90 0.3 0.7 19.00 0.3 0.7 1.9 1.9 1.9 1.7 1.7 1.7 1.7 1.7 1.5 1.5 1.5 1.5 1.5 1.4 1.4 1.4 1.4 1.4 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.2 1.0 1.0 1.0 1.0 1.0 I -9G Page 2 of 4 97 POND -2 Version: 5.15 S /N: 1295160123 Page 3 of 4 Executed 07 -01 -1994 11:53:09 Data directory: *.HYD File Summary for Composite Hydrograph Time.,. RIDN3 -00 RENZC -00 REN3A -00 (hrs) (cfs) (cfs) (Total) 19.10 19.20 19.30 19.40 19.50 19.60 19.70 19.80 19.90 20.00 20.10 20.20 20.30 20.40 20.50 20.60 20.70 20.80 20.90 21.00 21.10 21.20 21.30 21.40 21.50 21.60 21.70 21.80. 21.90 22.00 22.10 22.20 22.30 22.40 22.50 22.60 22.70 22.80 22.90 23.00 23.10 0.3 O .3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 O .3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 O .3 0.3 0.3 0.3 0.3 0.2 0.2 0.2 0.2 0.2 0.7 0.7 0.7 0.7 0.6 0.6 0.6 0.6 0.6 O .6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 O .6 0.6 0.6 0.6 0.6 0.6 0.5 0.5 0.5 0.5 O .5 0.4 1.0 1.0 1.0 1.0 0.9 0.9 0.9 0.9 0.9 O .9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 O .9 0.9 0.9 0.9 0.9 0.9 O .9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.8 0.7 0.7 0.7 O .7 0.6 POND -2 Version: 5.15 S /N: 1295160123 Executed 07 -01 -1994 11:53:09 Data directory: *.HYD File Summary for Composite Hydrograph Time RIDN3 -00 RENZC -00 REN3A -00 (hrs) (cfs) (cfs) (Total) 23.20 23.30 23.40 23.50 23.60 23.70 23.80 23.90 24.00 24.10 24.20 24.30 24.40 24.50 24.60 24.70 24.80 24.90 25.00 25.10 25.20 25.30 25.40 25.50 25.60 25.70 25.80 25.90 26.00 0.2 , 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.4 0.6 0.4 0.6 0.4 0.6 0.3 0.5 0.3 0.5 0.3 0.5 0.3 0.5 0.3 0.5 0.3 0.5 0.3 0.4 0.3 0.4 0.3 0.4 0.3 0.4 0.3 0.4 0.2 0.3 0.2 0.3 0.2 0.3 0.2 0.3 0.1 0.2 0.1 0.2 0.1 0.2 0.1 0.2 0.1 0.1 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 I -98 Page 4 of 4 Level -Pool Reservoir Routing and Drainage Pond 3A Volume Calculations 1 -95 POND -2 Version: 5.15 S /N: 1295160123 Ridgemont Estates North - 3rd Addition Drainage Pond 3A, located in Utility Lot "B" Pond floor area = 12,700 sq.ft. at elev. 2020.0 3:1 side slopes CALCULATED 04 -27 -1994 11:05:42 DISK FILE: REN3A .VOL Planimeter scale: 1 inch = 50 ft. Elevation Planimeter Area Al +A2 +sgr(A1 *A2) Volume (ft) (sq.in.) (sq.ft) (sq.ft) (cubic -ft) 2,020.00 5.08 12,700 0 0 2,020.50 5.48 13,700 39,591 6,598 2,021.00 5.89 14,725 42,628 7,105 2,021.50 6.30 15,750 45,704 7,617 2,022.00 6.71 16,775 48,779 8,130 2,022.50 7.13 17,825 51,892 8,649 2,023.00 7.56 18,900 55,080 9,180 2,023.50 8.01 20,025 58,379 9,730 2,024.00 8.48 21,200 61,829 10,305 1 - 100 Volume Sum (cubic -ft) 0 6,598 13,703 21,320 29,450 38,099 47,279 57,009 67,314 * Incremental volume computed by the Conic Method for Reservoir Volumes. 1 POND -2 Version: 5.15 S /N: 1295/60123 EXECUTED: 04 -27 -1994 11:25:44 *************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** * * * Ridgemont Estates North - 3rd Addition * Drainage Pond 3A * 12,700 sq.ft. 0 elev. 2020.0, 3:1 slopes * * Drywell Grates Elev. 2020.5 * * *************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** Inflow Hydrograph: REN3A- 50.HYD Rating Table file: REN3A .PND - - -- INITIAL CONDITIONS--- - Elevation = 2020.00 ft Outflow = 0.00 cfs Storage = 0 cu -ft INTERMEDIATE ROUTING GIVEN POND DATA COMPUTATIONS ELEVATION OUTFLOW STORAGE 2S /t 2S /t + 0 (ft) (cfs) (cu -ft) (cfs) (cfs) 2020.00 0.0 0 0.0 0.0 2020.50 6.0 6,598 36.7 42.7 2021.00 6.0 13,703 76.1 82.1 2021.50 6.0 21,320 118.4 124.4 2022.00 6.0 29,450 163.6 169.6 2022.50 6.0 38,099 211.7 217.7 2023.00 6.0 47,279 262.7 268.7 2023.50 6.0 57,009 316.7 322.7 2024.00 6.0 67,314 374.0 380.0 Time increment (t) = 0.100 hrs. Page 1 1 -101 O14 - _I1E t OFF- 1 POND -2 Version: 5.15 S /N: 1295160123 Page 2 il EXECUTED: 04-27 -1994 11:25:44 Pond File: REN3A .PND ' Inflow Hydrograph: REN3A- 50.HYD Outflow Hydrograph: REN3AOUT.HYD INFLOW HYDROGRAPH ROUTING COMPUTATIONS I TIME INFLOW I1 +I2 2S /t - 0 2S /t + 0 OUTFLOW ELEVATION (hrs) (cfs) (cfs) (cfs) (cfs) (cfs) (ft) ' 11.000 11.100 11.200 I 11.300 11.400 11.500 ' 11.600 11.700 11.800 11.900 I 12.000 12.100 12.200 .' 12.300 12.400 12.500 ' 12.600 12.700 12.800 12.900 ' 13.000 13.100 13.200 ' 13.300 13.400 13.500 13.600 I 13.700 13.800 13.900 , 14.000 14.100 14.200 ,I 14.300 14.400 14.500 14.600 II 14.700 14.800 14.900 _' 15.000 15.100 15.200 ' 15.300 15.400 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.50 0.80 1.30 5.50 14.20 13.00 8.10 5.30 4.20 3.60 3.00 2.70 2.50 2.30 2.20 2.10 2.00 2.00 2.00 1.70 1.60 1.60 1.50 1.40 1.40 1.40 1.40 1.40 1.30 1.30 1.30 1.20 1.20 1.20 1.20 1.20 1.00 1.00 0.0 0.0 0.0 0.0 0.0 0.0 0.5 1.3 2.1 6.8 19:7 27.2 21.1 13.4 9.5 7.8 6.6 5.7 5.2 4.8 4.5 4.3 4.1 4.0 4.0 3.7 3.3 3.2 3.1 2.9 2.8 2.8 2.8 2.8 2.7 2.6 2.6 2.5 2.4 2.4 2.4 2.4 2.2 2.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.4 1.2 2.4 6.6 18.9 34.1 43.2 44.6 42.1 37.9 32.5 27.4 23.5 20.3 17.8 15.9 14.4 13.2 12.4 11.5 10.7 10.0 9.4 8.8 8.4 8.0 7.8 7.6 7.4 7.2 7.0 6.9 6.6 6.5 6.4 6.3 6.1 5.8 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.5 1.7 3.3 9.2 26.3 46.1 55.2 56.6 54.1 49.9 44.5 38.2 32.6 28.3 24.8 22.1 20.0 18.4 17.2 16.1 14.8 13.9 13.1 12.3 11.6 11.2 10.8 10.6 10.3 10.0 9.8 9.5 9.3 9.0 8.9 8.8 8.5 8.1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.07 0.23 0.46 1.29 3.70 6.00 6.00 6.00 6.00 6.00 6.00 5.37 4.59 3.98 3.49 3.11 2.81 2.59 2.42 2.26 2.09 1.95 1.84 1.73 1.64 1.57 1.52 1.49 1.45 1.41 1.38 1.34 1.30 1.27 1.25 1.24 1.20 1.14 1-102 2020.00 2020.00 2020.00 2020.00 2020.00 2020.00 2020.00 2020.01 2020.02 2020.04 2020.11 2020.31 2020.54 2020.66 2020.68 2020.64 2020.59 2020.52 2020.45 2020.38 2020.33 2020.29 2020.26 2020.23 2020.22 2020.20 2020.19 2020.17 2020.16 2020.15 2020.14 2020.14 2020.13 2020.13 2020.12 2020.12 2020.12 2020.11 2020.11 2020.11 2020.11 2020.10 2020.10 2020.10 2020.10 POND -2 Version: 5.15 S /N: 1295160123 'EXECUTED: 04 -27 -1994 11:25:44 Pond File: REN3A .PND - 1 Inflow Hydrograph: REN3A- 50.HYD Outflow Hydrograph: REN3AOUT.HYD _ 1 INFLOW HYDROGRAPH ROUTING COMPUTATIONS TIME INFLOW I1+I2 2S /t - 0 2S /t + 0 OUTFLOW ELEVATION (hrs) (cfs) (cfs) (cfs) (cfs) (cfs) (ft) 15.500 1.00 2.0 15.600 1.00 2.0 15.700 1.00 2.0 15.800 1.00 2.0 15.900 1.00 2.0 16.000 1.00 2.0 16.100 1.00 2.0 - 16.200 1.00 2.0 16.300 0.90 1.9 16.400 0.90 1.8 - 16.500 0.90 1.8 16.600 0.90 1.8 16.700 0.90 1.8 16.800 0.90 1.8 16.900 0.90 1.8 17.000 0.90 1.8 17.100 0.90 1.8 17.200 0.90 1.8 17.300 0.80 1.7 17.400 0.80 1.6 _ 17.500 0.80 1.6 17.600 0.80 1.6 17.700 0.80 1.6 17.800 0.80 1.6 17.900 0.80 1.6 18.000 0.80 1.6 18.100 0.80 1.6 - 18.200 0.80 1.6 18.300 0.80 1.6 18.400 0.80 1.6 18.500 0.80 1.6 18.600 0.60 1.4 18.700 0.60 1.2 18.800 0.60 1.2 - 18.900 0.60 1.2 19.000 0.60 1.2 19.100 0.60 1.2 - 19.200 0.60 1.2 19.300 0.60 1.2 19.400 0.60 1.2 19.500 0.60 1.2 19.600 0.60 1.2 19.700 0.60 1.2 19.800 0.60 1.2 - 19.900 0.60 1.2 20.000 0.60 1.2 5.6 5.5 5.4 5.3 5.2 5.2 5.2 5.2 5.1 4.9 4.8 4.8 4.7 4.7 4.7 4.6 4.6 4.6 4.5 4.4 4.3 4.3 4.2 4.2 4.2 4.1 4.1 4.1 4.1 4.1 4.1 3.9 3.7 3.5 3.4 3.3 3.2 3.2 3.2 3.1 3.1 3.1 3.1 3.1 3.1 3.1 7.8 7.6 7.5 7.4 7.3 7.2 7.2 7.2 7.1 6.9 6.7 6.6 6.6 6.5 6.5 6.5 6.4 6.4 6.3 6.1 6.0 5.9 5.9 5.8 5.8 5.8 5.7 5.7 5.7 5.7 5.7 5.5 5.1 4.9 4.7 4.6 4.5 4.4 4.4 4.4 4.3 4.3 4.3 4.3 4.3 4.3 1.10 1.07 1.05 1.04 1.03 1.02 1.01 1.01 0.99 0.97 0.95 0.93 0.92 0.92 0.91 0.91 0.91 0.90 0.89 0.86 0.85 0.83 0.82 0.82 0.81 0.81 0.81 0.80 0.80 0.80 0.80 0.77 0.72 0.69 0.66 0.65 0.63 0.62 0.62 0.61 0.61 0.61 0.60 0.60 0.60 0.60 Page 3 1 - 1 03 2020.09 2020.09 2020.09 2020.09 2020.09 2020.08 2020.08 2020.08 2020.08 2020.08 2020.08 2020.08 2020.08 2020.08 2020.08 2020.08 2020.08 2020.08 2020.07 2020.07 2020.07 2020.07 2020.07 2020.07 2020.07 2020.07 2020.07 2020.07 2020.07 2020.07 2020.07 2020.06 2020.06 2020.06 2020.06 2020.05 2020.05 2020.05 2020.05 2020.05 2020.05 2020.05 2020.05 2020.05 2020.05 2020.05 1 POND -2 Version: 5.15 S /N: 1295160123 ' EXECUTED: 04 -27 -1994 11:25:44 Pond File: REN3A .PND I Inflow Hydrograph: REN3A- 50.HYD Outflow Hydrograph: REN3AOUT.HYD 1 1 1 1 1 1 1 1 1 1 1 INFLOW HYDROGRAPH ROUTING COMPUTATIONS TIME INFLOW; I1 +I2 2S /t - 0 2S /t + 0 OUTFLOW ELEVATION' (hrs) (cfs) . (cfs) (cfs) (cfs) (cfs) (ft) 20.100 20.200 20.300 20.400 20.500 20.600 20.700 20.800 20.900 21.000 21.100 21.200 21.300 21.400 21.500 21.600 21.700 21.800 21.900 22.000 22.100 22.200 22.300 22.400 22.500 22.600 22.700 22.800 22.900 23.000 23.100 23.200 23.300 23.400 23.500 23.600 23.700 23.800 23.900 24.000 24.100 24.200 24.300 24.400 24.500 24.600 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.50 0.50 0.50 0.50 0.40 0.40 0.40 0.40 0.40 0.40 0.40 0.40 0.40 0.30 0.20 0.20 0.20 0.20 0.20 0.20 1:2 1 2 1:2 1.2 1:2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.1 1.0 1.0 1.0 0.9 0:8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.7 0.5 0.4 0.4 0.4 0.4 0.4 3.1 3.1 3.1 3.1 3.1 3.1 3.1 3.1 3.1 3.1 3.1 3.1 3.1 3.1 3.1 3.1 3.1 3.1 3.1 3.1 3.1 3.1 3.1 3.1 3.1 3.1 3.0 2.9 2.8 2.7 2.6 2.4 2.3 2.3 2.2 2.2 2.1 2.1 2.1 2.0 1.8 1.6 1.4 1.3 1.2 1.2 4.3 4.3 4.3 4.3 4.3 4.3 4.3 4.3 4.3 4.3 4.3 4.3 4.3 4.3 4.3 4.3 4.3 4.3 4.3 4.3 4.3 4.3 4.3 4.3 4.3 4.3 4.2 4.0 3.9 3.8 3.6 3.4 3.2 3.1 3.1 3.0 3.0 2.9 2.9 2.8 2.5 2.2 2.0 1.8 1.7 1.6 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.59 0.56 0.54 0.53 0.51 0.48 0.46 0.44 0.43 0.42 0.41 0.41 0.41 0.39 0.35 0.31 0.28 0.26 0.24 0.23 Page 4 2020.05 2020.05 2020.05 2020.05 2020.05 2020.05 2020.05 2020.05 2020.05 2020.05 2020.05 2020.05 2020.05 2020.05 2020.05 2020.05 2020.05 2020.05 2020.05 2020.05 2020.05 2020.05 2020.05 2020.05 2020.05 2020.05 2020.05 2020.05 2020.05 2020.04 2020.04 2020.04 2020.04 2020.04 2020.04 2020.04 2020.03 2020.03 2020.03 2020.03 2020.03 2020.03 2020.02 2020.02 2020.02 2020.02 1 POND -2 Version: 5.15 S /N: 1295160123 1 EXECUTED: 04 -27 -1994 11:25:44 Pond File: REN3A .PND Inflow Hydrograph: REN3A- 50.HYD IF Outflow Hydrograph: REN3A0UT.HYD 1 TIME INFLOW I1 +I2 2S /t - 0 2S /t + 0 OUTFLOW ELEVATION (hrs) (cfs) (cfs) (cfs) (cfs) (cfs) (ft) 1 24.700 0.20 0.4 1.1 1.6 0.22 2020.02 24.800 0.20 0.4 1.1 1.5 0.22 2020.02 24.900 0.20 0.4 1.1 1.5 0.21 2020.02 1- 25.000 0.10 0.3 1.0 1.4 0.19 2020.02 25.100 0.10 0.2 0.9 1.2 0.17 2020.01 25.200 0.10 0.2 0.8 1.1 0.15 2020.01 1 25.300 0.10 0.2 0.7 1.0 0.13 2020.01 25.400 0.00 0.1 0.6 0.8 0.11 2020.01 25.500 0.00 0.0 0.4 0.6 0.08 2020.01 1 25.600 0.00 0.0 0.3 0.4 0.06 2020.00 25.700 0.00 0.0 0.2 0.3 0.04 2020.00 25.800 0.00 0.0 0.2 0.2 0.03 2020.00 25.900 0.00 0.0 0.1 0.2 0.02 2020.00 I 26.000 0.00 0.0 0.1 0.1 0.02 2020.00 i 1 1 1 1 1 1 1 1 1 INFLOW HYDROGRAPH ROUTING COMPUTATIONS Page 5 1 -105 1 POND -2 Version: 5.15 S /N: 1295160123 EXECUTED: 04 -27 -1994 11:25:44 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 * * * * * * * * * * * * * * * * ** SUMMARY OF ROUTING COMPUTATIONS * * * * * * * * * * * * * * * * ** Pond File: REN3A .PND Inflow Hydrograph: REN3A- 50.HYD Outflow Hydrograph: REN3AOUT.HYD Starting 'Pond W.S. Elevation = 2020.00 ft * * * ** Summary of Peak Outflow and Peak Elevation * * * ** Peak Inflow = 14.20 cfs Peak Outflow = 6.00 cfs Peak Elevation = 2020.68 ft * * * ** Summary of Approximate Initial Storage = Peak Storage From Storm = Total Storage in Pond Peak Storage * * * ** 0 cu -ft 9,106 cu -ft 9,106 cu -ft Page 6 1 -106 1 1 1 • 11.5 - x x II 11.6 - x x* III 11.7 - x x 11.8 - x * x * 1 11.9 - x * x 12.0 - x 112.1 - I 12.2 - 12.3 - 1 12.4 - 12.5 - 112.6 - 1 12.7 - 12.8 - 112.9 - 13.0 - 113.1 - 13.2 = '13.3 -- 113.4 - 13.5 - 113.6 - 13.7 - 1 POND--2 Version :. 5.15 S /N: 1295160123 Pond File: REN3A .PND Inflow Hydrograph: REN3A- 50.HYD Outflow Hydrograph: REN3A0UT.HYD Peak Inflow = 14.20 cfs Peak Outflow 6.00 cfs Peak Elevation = 2020.68 ft Flow (cfs) 0.0 1 5 3.0 4.5 6.0 7.5 9.0 10.5 12.0 13.5 15.0 16.5 I f x * x x x * * EXECUTED: 04 -27 -1994 11:25:44 Page 7 1 -107 1_ * x 13 8 - * x * x - 13.9 - *x *x 14.0 - *x TIME IL (his) * File: REN3A- 50.HYD Qmax = 14.2 cfs x File: REN3AOUT.HYD Qmax = 6.0 cfs i f HOB POND -2 Version: 5.15 S /N: 1295160123 ' EXECUTED: 07 -05 -1994 07:31:46 ************* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** * * Ridgemont Estates North - 3rd Addition * * Drainage Pond 3A * Pond Floor Elev. 2020.0 * Drywell Grates Elev. 2020.5 * ************* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** Inflow Hydrograph: REN3A- 00.HYD Rating Table file: REN3A, .PND - - -- INITIAL CONDITIONS--- - Elevation = 2020.00 ft Outflow = 0.00 cfs Storage = 0 cu -ft Time increment (t) = 0.100 hrs. Page 1 011 -51iE 4 OFT- SnE C.0MPa&ITE 1 00 - i AK STORM INTERMEDIATE ROUTING GIVEN POND DATA COMPUTATIONS ELEVATION OUTFLOW STORAGE 2S /t 2S /t + 0 (ft) (cfs) (cu -ft) (cfs) (cfs) 2020.00 0.0 0 0.0 0.0 2020.50 6.0 6,598 36.7 42.7 2021.00 6.0 13,703 76.1 82.1 2021.50 6.0 21,320 118.4 124.4 2022.00 6.0 29,450 163.6 169.6 2022.50 6.0 38,099 211.7 217.7 2023.00 6.0 47,279 262.7 268.7 2023.50 6.0 57,009 316.7 322.7 2024.00 6.0 67,314 374.0 380.0 1 POND -2 Version: 5.15 S /N: 1295160123 1 EXECUTED: 07 -05 -1994 07:31:46 Pond File: REN3A .PND Inflow Hydrograph: REN3A- O0.HYD Outflow Hydrograph: REN3AOUT.HYD INFLOW HYDROGRAPH 11.000 0.00 11.100 0.00 11.200 0.00 11.300 0.00 11.400 0.00 11.500 0.10 11.600 0.10 11.700 1.40 11.800 2.80 11.900 4.10 12.000 15.50 12.100 32.00 12.200 26.60 12.300 15.60 12.400 9.90 12.500 7.70 12.600 6.30 12.700 5.20 12.800 4.60 12.900 4.20 13.000 4.00 13.100 3.70 13.200 3.40 13.300 3.20 13.400. 3.20 13.500 3-101 13.600 2.80 13.700 2.80 13.800 2.70 13.900 2.60 14.000 2.40 14.100 2.30 14.200 2.20 14.300 2.10 14.400 2.10 14.500 2.10 14.600 2.10 14.700 2.10 14.800 1.90 14.900 1.90 15.000 1.90 15.100 1.90 15.200 1.90 15.300 1.70 15.400 1.70 1 TIME (hrs) INFLOW I1 +I2 2S /t - 0 (cfs) (cfs) (cfs) 0.0 0:0 0.0 0.0 0.1 0.2 1.5 4.2 6.9 19.6 47.5 58.6 42.2 25.5 17.6 14.0 11.5 9.8 8.8 8.2 7.7 7.1 6.6 6.4 6.3 j 5.9 5.6 I 5.5 5.3 5.0 4.7 4.5 4.3 4.2 4.2 4.2 4.2 4.0 3.8 3.8 3.8 3.8 3.6 3.4 ROUTING COMPUTATI0NS 0.0 0.0 0.0 0.0 0.0 0.1 0.2 1.2 3.9 7.8 19.7 55.2 101.8 132.0 145.5 151.1 153.1 152.6 150.4 147.2 143.4 139.1 134.2 128.8 123.2 117.5 111.4 105.0 98.5 91.8 84.8 77.5 70.0 62.3 54.5 46.7 38.9 31.1 25.2 20.8 17.7 15.5 13.8 12.5 11.5 0.0 0.0 0.0 0.0 0.0 0.1 0.3 1.7 5.4 10.8 27.4 67.2 113.8 144.0 157.5 163.1 165.1 164.6 162.4 159.2 155.4 151.1 146.2 140.8 135.2 129.5 123.4 117.0 110.5 103.8 96.8 89.5 82.0 74.3 66.5 58.7 50.9 43.1 35.1 29.0 24.6 21.5 19.3 17.4 15.9 0.00 0.00 0.00 0.00 0.00 0.01 0.04 0.24 0.76 1.52 3.85 6.00 6.00 6.00 6.00 6.00 6.00 6.00 6.00 6.00 6.00 6.00 6.00 6.00 6.00 6.00 6.00 6.00 6.00 6.00 6.00 6.00 6.00 6.00 6.00 6.00 6.00 6.00 4.93 4.08 3.47 3.03 2.71 2.45 2.24 Page 2 1-110 25/t -+- 0 OUTFLOW ELEVATION (cfs) (cfs) (ft) 2020.00 2020.00 2020.00 2020.00 2020.00 2020.00 2020.00 2020.02 2020.06 2020.13 2020.32 2020.81 2021.37 2021.72 2021.87 2021.93 2021.95 2021.94 2021.92 2021.88 2021.84 2021.79 2021.74 2021.68 2021.62 2021.56 2021.49 2021.41 2021.33 2021.26 2021.17 2021.09 2021.00 2020.90 2020.80 2020.70 2020.60 2020.51 2020.41 2020.34 2020.29 2020.25 2020.23 2020.20 2020.19 1 POND -2 Version: 5.15 S /N: 1295160123 1 EXECUTED: 07 -05 -1994 07:31:46 Pond File: REN3A .PND I Inflow Hydrograph: REN3A- O0.HYD Outflow Hydrograph: REN3AOUT.HYD 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 INFLOW HYDROGRAPH ROUTING COMPUTATIONS TIME INFLOW (hrs) (cfs) 15.500 15.600 15.700 15.800 15.900 16.000 16.100 16.200 16.300 16.400 16.500 16.600 16.700 16.800 16.900 17.000 17.100 17.200 17.300 1 17.400 17.500 17.600 17.700 17.800 17.900 18.000 18.100 18.200 18.300 18.400 18.500 18.600 18.700 18.800 18.900 19.000 19.100 19.200 19.300 19.400 19.500 19.600 19.700 19.800 19.900 20.000 1.70 1.70 1.70 1.50 1.50 1.50 1.50 1.50 1.40 1.40 1.40 1.40 1.40 1.30 1.30 1.30 1.30 1.30 1.30 1.30 1.30 1.30 1.30 1.30 1.30 1.30 1.30 1.30 1.30 1.30 1.20 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 0.90 0.90 0.90 0.90 0.90 0.90 Page 3 I1+I2 2S /t - 0 2S /t + 0 OUTFLOW 'ELEVATION (cfs) (cfs) (cfs) (cfs) (ft) 3.4 3.4 3.4 3.2 3.0 3.0 3.0 3.0 2.9 2.8 2.8 2.8 2.8 2.7 2.6 2.6 2.6 2.6 2.6 2.6 2.6 2.6 2.6 2.6 2.6 2.6 2.6 2.6 2.6 2.6 2.5 2.2 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 1.9 1.8 1.8 1.8 1.8 1.8 10.7 10.1 9.7 9.3 8.8 8.5 8.3 8.1 7.9 7.7 7.5 7.4 7.4 7.2 7.1 6.9 6.9 6.8 6.8 6.7 6.7 6.7 6.7 6.7 6.7 6.7 6.7 6.6 6.6 6.6 6.6 6.3 6.0 5.7 5.6 5.4 5.3 5.3 5.2 5.2 5.1 5.0 4.9 4.8 4.7 4.7 14.9 14.1 13.5 12.9 12.3 11.8 11.5 11.3 11.0 10.7 10.5 10.3 10.2 10.1 9.8 9.7 9.5 9.5 9.4 9.4 9.3 9.3 9.3 9.3 9.3 9.3 9.3 9.3 9.2 9.2 9.1 8.8 8.3 8.0 7.7 7.6 7.4 7.3 7.3 7.2 7.1 6.9 6.8 6.7 6.6 6.5 2.09 1.98 1.90 1.82 1.73 1.66 1.62 1.58 1.55 1.51 1.48 1.45 1.44 1.41 1.38 1.36 1.34 1.33 1.32 1.32 1.31 1.31 1.31 1.30 1.30 1.30 1.30 1.30 1.30 1.30 1.29 1.23 1.17 1.12 1.09 1.06 1.04 1.03 1.02 1.02 1.00 0.97 0.95 0.94 0.93 0.92 2020.17 2020.16 2020.16 2020.15 2020.14 2020.14 2020.13 2020.13 2020.13 2020.13 2020.12 2020.12 2020.12 2020.12 2020.12 2020.11 2020.11 2020.11 2020.11 2020.11 2020.11 2020.11 2020.11 2020.11 2020.11 2020.11 2020.11 2020.11 2020.11 2020.11 2020.11 2020.10 2020.10 2020.09 2020.09 2020.09 2020.09 2020.09 2020.09 2020.08 2020.08 2020.08 2020.08 2020.08 2020.08 2020.08 1 POND -2 Version: 5.15 S /N: 1295160123 EXECUTED: 07 -05 -1994 07:31:46 Pond File: REN3A .PND Inflow Hydrograph: REN3A- 00.HYD Outflow Hydrograph: REN3AOUT.HYD 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 INFLOW HYDROGRAPH ROUTING COMPUTATIONS Page 4 TIME INFLOW I1 +I2 2S /t - 0 2S /t + 0 OUTFLOW ELEVATION (hrs) (cfs) (cfs) (cfs) (cfs) (cfs) (ft) 20.100 0.90 1.8 4.7 6.5 0.91 2020.08 20.200 0.90 1.8 4.6 6.5 0.91 2020.08 20.300 0.90 1.8 4.6 6.4 0.91 2020.08 20.400 0.90 1.8 4.6 6.4 0.91 2020.08 20.500 0.90 1.8 4.6 6.4 0.90 2020.08 20.600 0.90 1.8 4.6 6.4 0.90 2020.08 20.700 0.90 1.8 4.6 6.4 0.90 2020.08 20.800 0.90 1.8 4.6 6.4 0.90 2020.08 20.900 0.90 1.8 4.6 6.4 0.90 2020.08 21.000 0.90 1.8 4.6 6.4 0.90 2020.08 21.100 0.90 1.8 4.6 6.4 0.90 2020.08 21.200 0.90 1.8 4.6 6.4 0.90 2020.08 21.300 0.90 1.8 4.6 6.4 0.90 2020.08 21.400 0.90 1.8 4.6 6.4 0.90 2020.08 21.500 0.90 1.8 4.6 6.4 0.90 2020.08 21.600 0.90 1.8 4.6 6.4 0.90 2020.08 21.700 0.90 1.8 4.6 6.4 0.90 2020.08 21.800 0.90 1.8 4.6 6.4 0.90 2020.08 21.900 0.90 1.8 4.6 6.4 0.90 2020.08 22.000 0.90 1.8 4.6 . 6.4 0.90 2020.08 22.100 0.90 1.8 4.6 6.4 0.90 2020.08 22.200 0.90 1.8 4.6 6.4 0.90 2020.08 22.300 0.90 1.8 4.6 6.4 0.90 2020.08 22.400 0.90 1.8 4.6 6.4 0.90 2020.08 22.500 0.90 1.8 4.6 6.4 0.90 2020.08 22.600 0.80 1.7 4.5 6.3 0.89 2020.07 22.700 0.70 1.5 4.3 6.0 0.85 2020.07 22.800 0.70 1.4 4.1 5.7 0.81 2020.07 22.900 0.70 1.4 4.0 5.5 0.78 2020.06 23.000 0.70 1.4 3.9 5.4 0.75 2020.06 23.100 0.60 1.3 3.7 5.2 0.73 2020.06 23.200 - 0.60 1.2 3.5 4.9 0.69 2020.06 23.300 0.60 1.2 3.4 4.7 0.66 2020.06 23.400 0.60 1.2 3.3 4.6 0.65 2020.05 23.500 0.50 1.1 3.2 4.4 0.62 2020.05 23.600 0.50 1.0 3.0 4.2 0.59 2020.05 23.700 0.50 1.0 2.9 4.0 0.56 2020.05 23.800 0.50 1.0 2.8 3.9 0.54 2020.05 23.900 0.50 1.0 2.7 3.8 0.53 2020.04 24.000 0.50 1.0 2.7 3.7 0.52 2020.04 24.100 0.40 0.9 2.6 3.6 0.50 2020.04 24.200 0.40 0.8 2.4 3.4 0.47 2020.04 24.300 0.40 0.8 2.3 3.2 0.45 2020.04 24.400 0.40 0.8 2.2 3.1 0.44 2020.04 24.500 0.40 0.8 2.2 3.0 0.43 2020.04 24.600 0.30 0.7 2.1 2.9 0.41 2020.03 1 POND -2 Version: 5.15 S /N: 1295160123 1 EXECUTED: 07 -05 -1994 07:31:46 Pond File: REN3A .PND 1 Inflow Hydrograph: REN3A- 00.HYD Outflow Hydrograph: REN3AOUT.HYD 1 INFLOW HYDROGRAPH ROUTING COMPUTATIONS TIME INFLOW .: I1 +I2 2S /t - 0 2S /t + 0 OUTFLOW ELEVATION (hrs) I (cfs) (cfs) (cfs) (cfs) (cfs) (ft) 1 24.700 24.800 1 24.900 25.000 25.100 25.200 1 25.300 25.400 25.500 I 25.600 25.700 25.800 25.900 1 26.000 it 1 1 1 1 1 1 1 1 1 0.30 0.30 0.30 0.20 0.20 0.20 0.20 0.10 0.00 0.00 0.00 0.00 0.00 0.00 0.6 0.6 0.6 0.5 0.4 0.4 0.4 0.3 0.1 0.0 O .0 0.0 O .0 0.0 1.9 1.8 1.7 1.6 1.4 1.3 1.2 1.1 0.9 0.6 0.4 0.3 0.2 0.2 2.7 2.5 2.4 2.2 2.0 1.8 1.7 1.5 1.2 0.9 0.6 0.4 0.3 0.2 O .38 0.35 O .34 0.31 0.28 0.26 0.24 0.22 0.17 0.12 0.09 0.06 0.05 0.03 Page 5 I -113 2020.03 2020.03 2020.03 2020.03 2020.02 2020.02 2020.02 2020.02 2020.01 2020.01 2020.01 2020.01 2020.00 2020.00 11 POND -2 Version: 5.15 S /N: 1295160123 Page 6 EXECUTED: 07 -05 -1994 07:31:46 * * * * * * * * * * * * * * * * ** SUMMARY OF ROUTING COMPUTATIONS * * * * * * * * * * * * * * * * ** Pond File: REN3A .PND Inflow Hydrograph: REN3A- 00.HYD Outflow Hydrograph: REN3AOUT.HYD Starting Pond W.S. Elevation = 2020.00 ft * * * ** Summary of Peak Outflow and Peak Elevation * * * ** Peak Inflow = 32.00 cfs Peak Outflow = 6.00 cfs Peak Elevation = 2021.95 ft * * * ** Summary of Approximate Peak Storage * * * ** Initial Storage = 0 cu -ft Peak Storage From Storm = 28,630 cu -ft Total Storage in Pond = 28,630 cu -ft 1 -114 1 1 1 1 1 11.3 111.4 111.5 11.6 111.7 11.8 111.9 I2.0 2.1 112.2 12.3 12.4 I2.5 2.6 1.2 .7 12.8 12.9 13.0 13.1 113.2 TIME 1 (hrs) * File: x File: 1 POND -2 Version: 5.15 S /N: 1295160123 Page 7 Pond File: REN3A .PND Inflow Hydrograph: REN3A- 00.HYD Outflow Hydrograph: REN3AOUT.HYD Peak Inflow = 32.00 cfs Peak Outflow = 6.00 cfs Peak Elevation = 2021.95 ft EXECUTED: 07 -05 -1994 07:31:46 Flow (cfs) 0.0 4.0 8.0 12.0 16. 20. 0 24.0 28.0 32.0 36.0 40.0 44.0 I 1 , 1 1 1 1 �- * * REN3A- 00.HYD REN3AOUT.HYD * * Qmax = Qmax = * 32.0 cfs 6.0 cfs * * I -HS A large detention pond, referred to as Drainage Pond 3A, will be constructed in the northern portion of' Block 1 of Ridgeiuont Estates North - 3rd Addition, within a separate parcel referred to as "Utility Lot B ". This pond shall receive stonnwater runoff from the land area described as Basins 3A through 3D, Basin 4C, and off -site basins Renz -1 & Renz -2. As shown on the "208 Pond Section Detail" on the drainage map, Pond 3A is to be built to minimum 24" depth, with 3:1 (H:V) slopes on all sides, with a floor area of 12,700 sq.ft. at elevation 2020.0 and six double - barrel drywells. These parameters were used in the reservoir routing computations, which yielded the following results: 50 -year storm. peak storage volume = 9,106 cubic feet, water surface max. elevation 2020.68 100 -year storm: peak storage volume = 28,630 cubic feet, water surface max. elevation 2021.95 Spokane County requires the rim of the pond to be high enough to contain the 100 -year water surface elevation, or at least one foot above the 50 -year elevation, whichever is higher. In this case, the 100 -year level is higher, thus the Pond 3A rim must be 2021.95, minimum. At 24" minimum depth (as per the detail), the rim will be at or above elevation 2022.0. To store the calculated 28,630 cubic foot volume from a 100 -year storm, with 6 c.f.s. outflow, the maximum water elevation in the pond is 2021.95, or 1.95 feet above the level floor of the pond. For this drainage pond with 3:1 side slopes, the pond volume at any depth can be calculated from the area and perimeter of the pond floor, with two components: the volume directly above the floor area plus the volume above the 3:1 side slopes. Volume is calculated at 0.5 ft. depth for "208" treatment and at 2.0 ft. depths for storage, as follows: At 0.5 ft depth: Pond Volume = (0.5 ft. depth x pond floor Area) + (1/2 x 0.5 x 1.5 x floor Perimeter @ 3:1) . 0.5 A +0:375 P3:1 At 2.0 ft. depth: Pond Volume = (2.0 ft. depth x pond floor Area) + (1/2 x 2.0 x 6.0 x floor Perimeter a 3:1) = 2.0 A + 6.0 P3 DRAINAGE POND 3A VOLUME CALCULATIONS Pond Floor 2.0 ft. 1< i 6.0 feet ril DRAINAGE POND 3A VOLUME CALCULATIONS - CON IINtniD DRAINAGE POND 3A: Pond Floor Area, A = 12,700 sq. ft. (planimetcr measurement; see sketch on next page) Pond Floor Perimeter, P = 640 LF Total Volume at 6" depth = 0.5 A + 0.375 P3:1 = 0.5 ( 12,700 ) + 0.375 ( 640 ) = 6,350 + 240 = 6.590 cu. ft. The total "208" volume required for Basins 3A + 3B + 3C + 3D + 4C (from Summary Table I) = 515 + 299 + 216 + 0 + 263 = 1,293 cubic feet. Therefore, Drainage Pond 3A is more than adequate for "208" treatment of stormwater runoff from these five basins, with the drywell grates set 6" above the pond floor. Note: "208" treatment is not required for runoff from the existing developed land in Basins Renz -I and Renz -2. Volume at 2.0' depth = 2.0 A + 6.0 P3.1 = 2.0( 12,700) +6.0(640) = 25,400 + 3,840 . = 29.240 cu. ft. The total maximum volume to store with 6.0 c.f.s. outflow is 28,630 cubic feet (see routing computation). Therefore, Drainage Pond 3A can handle the calculated volume within a depth of about 2.0 ft. NOTE: The minimum construction depth of the pond is 24 ", as shown on the "208" Pond Section Detail. 1-117 11 �1 11 11 11 1 1 1 1 1 1 1 1 1 1 1 1 1 1 DRAINAGE POND 3A Scale: 1" = 50' ***i*i*****i*i*i* i *ii ********i * **i *i ***** * *i***. *iii *i *i EXISTING PONDS - OFFSITE The north half of Renz Drive west of the high point at Station 2 +62.09 drains to the "208" pond in Lot 1, Block 5 of Ridgemont Estates North - 2nd Addition ( "Pond 5 "), on the east side of Sonora Street. This pond was sized to take drainage from the area within the basin boundary line shown on the drainage map for the 3rd Addition, including the asphalt roadway and the house and driveway on Lot 1, Block I of the 3rd Addition. This basin boundary is also shown on the drainage plan map for the 2nd Addition. Similarly, the south half of Renz Drive west of the high point at Station 2+62.09 drains to the approved "208" pond in Lot 1, Block 6 of Ridgemont Estates North - 2nd Addition ( "Pond 6 "), at the intersection of Renz Drive and Sonora Street. This pond was sized to take drainage from the area within the basin boundary line shown on the drainage map for the 3rd Addition, including the asphalt roadway and the house and driveway on Lot 1, Block 3 of the 3rd Addition. This basin boundary is also shown on the drainage plan map for the 2nd Addition. Conclusion: Since the area to the west of the basin boundary line (which runs through the high point Station 2+62.09 of Renz Drive) is already meeting the County's requirements for runoff treatment, that small portion of Ridgemont Estates North - 3rd Addition has been excluded from the drainage calculations for this plat. For further information, refer to the Drainage Report and plan maps for Ridgemont Estates North - 2nd Addition. I -118 Known Parameters: NOTES: Retention Pond 3A: Time to Empty 1. Assumed Outflow Rate through ground = 0.36" /hour = 0.03 ft. /hour 2. Peak Storage from 100 -year storm = 28,630 cu. ft. 3. Peak Elevation in Pond = 2021.95 4. Pond Floor Elevation = 2020.0 5. Six Double - Barrel Drywells with grates set at 2020.5 Revised Contour Total Interval Outflow Hours to Contour Area, Pond Vol, Volume, via soil & Drain Elevation Sq. Ft. Cu. Ft. Cu. Ft. DWs, cfs interval 2022.00 16,775 29,450 - - - -- - - - - -- 2021.50 15,750 21,320 8,130 6.136 2021.00 1 14,725 1 13,703 7,617 1 6.127 2020.50 1 13,700 1 6,598 7,105 1 6.115 2020.00 1 12,700 1 0 6,598 1 0.110 Interval Volume and Time is the difference between the previous elevation's data and the current elevation's data in the table. For example, the volume and time recorded in the row for Elevation 2020.0 is for the interval from 2020.5 to 2020.0. Outflow for a given elevation is the average for the interval from the previous elevation. For example, The outflow for the 2020.0 row is the average of the outflow at 2020.0 (0.106) and at 2020.5 (0.114). The outflow at and above elevation 2020.50 takes the drywell grates into account: Total Time to Drain is the suni ofthe intervals. Total Time to Drain, Hr 0.37 0.37 0.35 0.72 0.32 1.04 16.66 17.70 1-119 Channel flow is calculated for the following: 1. "Existing Ditch from South of Plat" This analysis considers the flow from offsite basin "Renz -1" in the existing ditch which runs in a northerly direction from the culvert outlet near the westerly property corner of Lots 16 & 17, Block 1 of the original "Ridgemont Estates" to the SE end of Lot 3 of Ridgemont Estates North - 5th Addition.. The flow in this ditch conies from the area defined as basin Renz -I, with a 50-year peak flow of 6.55 c.fs. ( see the section titled "OBsite Basin Data" for the Q50 calculation). 2. "Ditch Entering Plat from 5th Addition" This analysis concerns the flow which continues north from the "energy dissipator" at the SE end of Lot 3 of Ridgemont Estates North - 5th Addition, in the existing ditch, and enters the 3rd Addition. At the energy dissipator, flows approach from two directions: "Renz -1" comes from the south as described above, and "Renz -2" flows downslope from the east in an existing 15" pipe. The pipe flow passes through the energy dissipator, then spills into the ditch. The combined flows from Renz -1 and Renz -2 then enter the 3rd Addition plat in the existing ditch. Since the 50 -year peaks from these two basins are almost concurrent, we will assume they are, for a combined Q5u of 6.55 +15.37 =21.92 cfs 3. "Ditch Extension to Culvert" 4. "Culvert under Renz Drive to Pond 3A" 5. "Ditch from Radco Drive" Channel Flow Analyses As the combined Renz -I and Renz-2 ditch flow enters 3rd Addition, it begins to pick up runoff from on -site basin 3D. The ditch flow will be directed via the proposed ditch extension to the culvert under Renz Drive. The ditch extension will take the combined Qsa of the offsite basins, plus the Q of 1.45 cfs from on -site I3asin 3D, for a total of 23.37 cfs (assuming concurrent peaks, although they're not). (z ptje This culvert takes the flow in the ditch extension, adds flow from Basins 313 & 3C, which include the south hall' of Renz Drive, plus flow from Basin 3A, including the north half of Renz Drive. The total flow is 23.37 cfs (ditch) + 2.78 cfs (Basin 3B) + 1.47 cfs (Basin 3C) + 3.15 cfs (Basin 3A), for a total peak (assumed concurrent) of 3037 c.fs. This analysis considers the runoff from Basin 4C of Ridgemont Estates North - 4th Addition, and assumes all of it flows in a ditch front Station 6+50 Radco Drive to Drainage Pond 3A. I -iz0 Triangular Channel Analysis & Design Open Channel - Uniform flow Worksheet Name: Ridgemont North 3rd Comment: "Benz -1 ": ex. ditch to energy dissipator (From soinHoFlN15 PuAr, Solve For Depth Given Input Data: Left Side Slope 3.00:1 (H:V) Right Side Slope 3.00:1 (H:V) Manning's n 0.030 Channel Slope 0.0700 ft /ft Discharge 6.55 cfs —r l<w-I ;2sN" tJa - '- Computed Results: Depth 0.62 ft —r DL'_P7H of CI&. p TCH =1.5 FT. Velocity 5.77 fps Flow Area 1.14 sf Flow Top Width 3.69 ft Wetted Perimeter 3.89 ft Critical Depth 0.78 ft Critical Slope 0.0192 ft /ft Froude Number 1.83 (flow is Supercritical) Open Channel Flow Module, Version 3.21 (c) 1990 Haestad Methods, Inc. * 37 Brookside Rd * Waterbury, Ct 06708 1 -121 Triangular Channel Analysis & Design Open Channel - Uniform flow Worksheet Name: Ridgemont North 3rd Comment: "Renz -1" + "Renz -2 ": ex. ditch from 5th Add. Solve For Depth Given Input Data: Left Side Slope 3.00:1 (H:V) Right Side Slope 3.00:1 (H:V) Manning's n 0.030 , 0 , ,_ ,y to Channel Slope 0.1170 ft /ft = — 8 6 -- = 5 = 11.E (o Discharge 21.92 cfs = Y (CEme. r Fc __ ? , Q So Computed Results: Depth 0.88 ft - * De 0F" EXC,. DITCH = 1. FT. Velocity 9.46 fps Flow Area 2.32 sf Flow Top Width 5.27 ft Wetted Perimeter 5.56 ft Critical Depth 1.27 ft' Critical Slope 0.0164 ft /ft Froude Number 2.51 (flow is Supercritical) Open Channel Flow Module, Version 3.21 (c) 1990 Haestad Methods, Inc. * 37 Brookside Rd * Waterbury, Ct 06708 1 -122 Triangular Channel Analysis & Design Open Channel - Uniform flow Worksheet Name: Ridgemont North 3rd Comment: Renzl +Renz2 +3D: ditch extension to culvert Solve For Depth Given Input Data: Left Side Slope 3.00:1 (H:V) Right Side Slope 3.00:1 (H:V) Manning's n 0.030 zo G Channel Slope 0:0460 ft /ft = a � _ Discharge 23.37 cfs 7 Ly. /'_tlJ2: i. F''tcs y cn + LAST /J °.D 10 Computed Results: ASSu• -i c C „JCURME,uT FCAY -J Depth 1.07 ft -r v:7? Cr rg'r'C.1:: 1 fltr{ ro P.C ' —` Velocity 6.77 fps Flow Area 3.45 sf Flow Top Width 6.44 ft Wetted Perimeter 6.78 ft Critical Depth 1.30 ft Critical Slope 0.0162 ft /ft Froude Number 1.63 (flow is Supercritical) Open Channel Flow Module, Version 3.21 (c) 1990 Haestad Methods, Inc. * 37 Brookside Rd * Waterbury, Ct 06708 I -123 Circular Channel Analysis & Design Solved with Manning's Equation Given Input Data: Diameter Slope Manning's n Discharge Computed Results: Full Flow Capacity Full Flow Depth Velocity Flow Area Critical Depth Critical Slope Percent Full Full Capacity QMAX @.94D Froude Number Open Channel - Uniform flow Worksheet Name: Ridgemont North 3rd Comment: Culvert under Rene Drive to Pond 3A Solve For full Flow Capacity 2.25 ft 0.0100 ft /ft 0.012 33.55 cfs —> Q r..._a = o.'T? cTs 33.55 cfs 2.25 ft 8.44 fps 3.98 sf 1.98 ft 0.0090 ft /ft 100.00 % 33.55 cfs 36.09 cfs FULL Open Channel Flow Module, Version 3.21 (c) 1990 Haestad Methods, Inc. * 37 Brookside Rd * Waterbury, Ct 06708 1 -124 KING COUNTY, WASHINGTON, SURFACE WATER DESIGN MANUAL FIGURE 4.3.5C HEADWATER DEPTH FOR SMOOTH INTERIOR PIPE CULVERTS WITH INLET CONTROL cc w 1- E a 0 160 166 • - 156 - 144 - 120 - 108 - 84 - 72 - 60 - 54 - 48 36 - 33 - 24 - 18 30 -10,000 • - 8,000 - 6,000 - 5,000 - 4,000 - 3,000 - .,000 - 600 - 600 - 500 - 400 — 300 ' 0 - 200 z -100 ¢ - 80 a - u - 60 - 50 0 4� —p .- 30 - 20 13) Grae•• end piol•clin0 — 10 - 6 - 3 S CALE 12) EXAMPLE (1) (2) (3) 0••2 incnu 13.5 tool 0•120 Wt' MW D tut pl 2.3 8.11 121 2.1 1.• 13) 2.2 •7.7 t o in 1.•1 To 1 • cm• 121 or UI prol•u h orizontally la owl. 111, than u•• cl rely nl inc I,n•a line Inrouan O and 0 wain, ar (4.141 as illu,l 14144. ENTRANCE TYPE 501014 .40. 0110 0844.011 Ci00.0 and .00 0.00.011 S - 2. x • • N D: r - 1.5 0 2 x - a 0 CC r 0 a x -.7 - 2. - LO _ L0 ENTRANCE TYPE SQUARE EDGE WITH HEADWALL 1 II_1. - PLAN ( GROOVE ENO WITH HEADWALL PLAN (2) GROOVE END PROJECTING I -1 - D= 1.2-5' =2' Q MFlX•- 30.'77 GFS (A: =VMIKI , CONCVfiENT PtA 5 o f Con771:1i.UTlr.ai 2,A51N5) - 12 HW /D = 1.5 HW = I. S(z.2.5) = 3.315 FT, PAGE 4'3, Spa. co Gull)Cf—.1ES: N Wn,nx. = 1,5) D FOR D> 1.5 FT. 4,3.5 -11 1/90 1 Triangular Channel Analysis & Design Open Channel - Uniform flow Worksheet Name: Ridgemont North 4th Comment: Ditch: Basin 4C, Radco Drive to Pond 3A Solve For Depth Given Input Data: Left Side Slope 3.00:1 (H:V) Right Side Slope 3.00:1 (H:V) Manning's n 0.030 Channel Slope 0.0100 ft /ft Discharge 1.63 cfs Computed Results: Depth 0.53 ft -y v1Tt1 -r se f-0/4. 1 P E7M A5 PER PLAN Velocity 1.96 fps Flow Area 0.83 sf Flow Top Width 3.16 ft Wetted Perimeter 3.33 ft Critical Depth 0.45 ft Critical Slope 0.0232 ft /ft Froude Number 0.67 (flow is Subcritical) I -1 Z6 . Open Channel Flow Module, Version 3.21 (c) 1990 Haestad Methods, Inc. * 37 Brookside Rd * Waterbury, Ct 06708 BASIN 3A: Qio = 3.15 cfs to the concrete inlet at the low point, Station 5 +50, left side of' Renz Drive. Refer to Page 4 -1 and Figure 14 of "Guidelines for Stormwater Management" Sump condition/Weir formula: Q = CPH" Q = maximum rate of flow accepted by the grate C = 3.0 P = perimeter of grate = 20.7) + 2(1.5) = 6.4', divided by 2 (to allow for partial clogging) = 3.2' I max. depth of flow = 6" curb + 1" depression = 7" = 0.583 tl. max. Q/P = 3.0 x H 3.0 x 0.4455 = 1.3366 max. Q = 1.3366 x 3.2 = 4.28 cfs = grate inlet capacity Qio of Basin 3A = 3.15 cfs; (Note: 2nd grate to be located at station 5 +56.7, directly over culvert) Spread on Pavement: depth of flow in gutter = 0.29 feet cross -slope of street = .0278 ft. /ft. 0.29'/0.0278 = 10.43 feet spread from gutter toward centerline 18' street width - 10.43' spread of water = 7.57 feet of clear passage 7.57 feet > 6.0 feet of required half- street for dear passage of traffic BASIN 3B + 3C: H = 0.28 ft. CAPACITIES OF CURB OPENING INLETS grate capacity > design flowrate Grate is OK Qio = 2.78 + 1.47 = 4.25 cfs to the 10 LF curb opening to the culvert entrance at the low point, Station 5 +50, right side of Renz Drive. Refer to Figure 17 of "Guidelines for Stormwater Management" h = 0.5 H/h = 0.28/0.5 = 0.56 ft. /ft. Q/L = 0.45 cfs/LF @ Q10 = 4.25 cfs, L = 9.5 feet maximum depth is OK :. Construct 10 ft. wide curb opening from Station 5+45 to 5+55, Right side of Renz Drive. I -1251 1 1 1 1 .1 1 _1 1 .1 _ 1 1 1 _1 1 1 1 _1 STOPPING SIGHT DISTANCE CALCULATIONS Date: 23- Dec -93 CREST VERTICAL CURVE Project Project name: Ridgemont Estates North 3rd Terrain:x ROAD TYPE: Urban /Suburban Public x Road name: Renz Drive PVI stat 250 Length of vertical curve pr 100 Design Speed: 30 .Min. Stopping Sight Distanc 200 Entering slope (G1, %): 1.31 Exiting Slope (G2, %): -0.8 IG2 -G11= A= 2.11 Check S>L: L1= 2S- (1329/A) vcurv2.1 /Aug93 SPOKANE COUNTY ENGINEERS Flat (General land slope 0o to 8 %) Rolling (General land slope >8% to 15%) f Mountains (General slope >15%) Local Access Arterial Collector Secondary Major Review 11 1 Re viewerChr1stenson Private . Extension to 8 or fewer lots Tract "X" Semi -rur L1 = - - 229.86 note: use min curve length = 0. Required minimum curve leng 0 Curve provided is Adequate Check S<L: L2 = A(S* *2)/1329 L2 = 63.5064 1 -i23 SPOKANE COUNTY ENGINEERS STOPPING SIGHT DISTANCE CALCULATIONS Date: 23- Dec -93 SAG VERTICAL CURVE Review II 1 ReviewerChristenson Project Project name: Ridgemont Estates North 3rd Terrain:x ROAD TYPE: Flat (General land slope 0% to 8 %) Rolling (General land slope >8% to 15 %) • Mountains (General land slope >15 %) Urban /Suburban Public x Local Access Arterial Collector Secondary Major Private Extension to 8 or fewer lots Tract "X" Semi -rur Road name: Renz Drive PVI stat 550 Length of vertical curve pr 100 Design Speed: 30 Min. Stopping Sight Distanc 200 Entering slope (G1, %): -0.8 Exiting Slope (G2, %): 0.8 102 -C11= A= 1.6 Check S >L: L1 = 2S - (.(400+3.5S) /A) L1 = -287.5 note: use min curve length = 0. Required minimum curve leng 0 Check S <L: Curve provided is Adequate L2 = A(S**2)/(400+3.5S) L2 = 58.1818 I -I29 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 STOPPING SIGHT DISTANCE CALCULATIONS Date: 23- Dec -93 CREST VERTICAL CURVE Project Project name: Ridgemont Estates North 3rd Terrain:x ROAD TYPE: Flat (General land slope 0% to 8 %) Rolling (General land slope >8% to 15 %) f Mountains (General land slope >15 %) Urban /Suburban Public x Local Access Arterial • Collector Secondary Major Private Extension to 8 or fewer lots Tract "X" Road name: Rene Drive PVI stat 975 Length of vertical curve pr 150 Design Speed: 30 Min. Stopping Sight Distanc 200 Entering slope (G1, %): Exiting Slope (G2, %): 1G2 -G11= A= Check S >L: L1= 2S- (1329/A) Check S<L: L1 = - 129.48 note: use min curve length = 0. Required minimum curve leng 0 L2 = A(S* *2)/1329 L2 = 75.5455 SPOKANE COUNTY ENGINEERS Review if 1 ReviewerChristenson Semi -rur Curve provided is Adequate 1-130 1 ems sheet 67) MILN UKE Isd • N -yr ;I 7.7!:.; H A C HICA GO ' `i y •— n EMI I I I NC_ —S I R.44 E. I R.45E1 .f t- (47 ! a. ' qA is .. ( _: E . v ; - 'ST PAUL ... - - . L ,. ' A NE; i'M V rad • e trit - `,__fir' - • ^ 7 7: 51 M Eat B B . 1?o 74 illap symbol DsC Dragoon stony silt loam,-0 to 30 percent slopes. • DsD Draguolt.snuy ails 10:uu; 30 to 55 per- cent slopes. . , DvD Dragoon very rocky complex, 20 tu•55 percent dupes. - EIC EID Em Fa B Fa B3 FaC3 GaC3 GgA GgB GpA GpB GpC • GpO , Freeman slopes. Freeman slopes, Freeman slopes, Soil mum: EkB Eloika silt loam,.0 to 20 Percent slopes. Eloika very stony silt loc 0 to 30 per- • cunt alupta. Eloika very stony silt loran, 30 to 55 ' perccut slopes. Lndela kilt lu:un. Fin Fresh water inarsh. silt loam, 5 to 20. percent silt loamy 5 to 2 20 Ixrecut severely eroded. alt loan, 20 to 3U percent severely eroded. Garfield silty clay loaf n, 0 to 30 percent slopes, severely eroded. Garrison gravelly loam, 0 to 5 percent slopes. Garrison gravelly loam, 5 to 20 percent slopes. GnB "Garrison vet y gravelly loam, percent slopes. Garrison very envy loan, 0 , to 20 V percent slopes.., • .1 Glenrose silt loan, 0 to 5 percent slopes. Cleurose alit loam, 5 to 20 percent elopes. Clearuse silt lean, 20. to 30 percent slopes. Clenruse silt Inns, 30 to 55 percent slopes". SOIL SURVEY Description of Sail and mite Similar to Dragoon silt loan, 0 to 30 percent Slopes, except that the surface layer is stony. Dragoon purl similar lu llraguuu sill Junin, U to 3U perccut aloe , except 11:.r depth to bed- rock ruugea (rum 10 to 20 inches. Ruck uu crup haclu Jed im antis cuinplex. Medium - textured, well- draiucd null funned front glacial till containing a large .tuwmat of vol- canic ash in the atarface layer; underlain by gravel at depth u( :10 n 60 inches; occupica undulating, muraineliI a upugi ap Similar to Eluika kilt lu.uu, 11 to 2U percent slopes, except that they are very 31011y Ihruughrnl t. hitilium- textured, somewhat poorly drained, alkaline soil funned in alluvium from culcar- euus silt, volcanic :tall, •md diutuuite; depth lu water table Ihtctuates (run, ne.tr the xar(ace to uLuut 6 feet. \'cry deep, toudcran:1y well drained upland soils with medium - textured aurface Layer and medi- um or moderately line textured subsoil; formed (runt silt eta rolling lu hilly uplands. Shallow, swampy, intermittent fringes ann Iakea Ilia Lace water table. - Engineering data as h typo is tau variable. Very deep, well- drained soil deer tat ridge lupa mid kuuUs woke upl:uads in the l' :Jouatt soil :ova pwnla and :a II IICLLI:a tling is nut givoa, loped in loess 'ailing n hilly Gravelly, urdiumt- restored, ,mucwlest exce.- aively drained soils fun ma gravelly glacial mutwash material from a variety of acid, igncums parent ruck; 011 meanly Ievcl 10 owtl- ei alcly eloping terraces; depth to mixture u( s: gravel, and cubhlestomra r :u,gea from Zit to 5 feet. 0 to 8 Similar to Chtrrisoa gravelly lua except that tin km fact: layer is very gravelly. Similar to 'Garrison gravelly lu:uu, except that Lhc surface layer is very at011y. Very dc•p, medium -text aced %Veil - drained soils funned train acid igneous glacial till; aur(uee Layer iulluenced Lyn Incas Sul volcanic Salt; on gently rolling to sleep uplands. ' I ' .U11.1: (i. —Uric dt ocrip(iona o auiio red d,r it ll,gath from aur(ace U to 24 2s" 10 41 4-! to 53 53 to 60 U to 26 26 to - 1 1 41 to Gu to 2 22 to 72 tl to S • lu 23 23 to GU (1 to 15 15 to 41 -1-1 to 60 • L,. (1 to 15 15 to -11 4-1 to GO C'laaaiticatiou USDA texture Silt loan Gravelly loam Very gravelly sandy luain. tiro■ el S.It 1ua111 \ -ry line sandy lass. Sandy clay luau_ -.- Silt loc Silty clay loam Silty (day loaut Silty clay Silly clay loan Gravelly lo:,n Very gravelly 10.1111 -. Sant, gravel, .I.d cobblestones. Very gravelly lo.uu_ Very gravelly loan_. 5anJ, gravel, anti cubbleatuucs. 0 io 72 1 Silt loam 1 1- 1 . 1 1 • 1 . 1 1 . 1 . 1 1' 1- 1 1 1 1 1 1 1 82 Map symbol PoA Peelle silt loan, drained, 0 to 5 percent slopes:' " . Psi. Phoebe sandy loam, 0 to 5 perccut slupe6. Ps8 Phucbe•Isa11 ly •loa11, 5 to 20 percent RdA Reartlam silt loam, 0 to'5 percent slopes. Rd Reardon silt loa 11, 5 to 20 percent elopes Rd 82 RJC2 Rh Ro Rock outcrop. Sa8 Sa 82 SaC SaC2 SaD ScC ScC2 Sc D ScD2 Se Sk Sm Reardamt silt loamy 5 to 20 percent slopes, eroded. Iteardaii silt loam, 20 to 30 percent slopes, eroded. River wash. Sail name Schumacher silt loans, 0 slopes. Selo u taehur silt loam, 0 slupts, eroded. Selnioadter silt loam, 20 slupts. Schumacher silt loam, 20 slopes, eroded. Schumacher silt loam, 30 sloth's. to 20 percent to 20 percent to 3U percent to 30 percent t0 55 percetlt Schumacher gravelly silt loam, 5 to 30 percent slopes. Schumacher gravelly silt loam, 5 to 30 perccut slopes, eluded. Schumacher gravelly silt loam, 30 to 55 percent slopes... Schumacher gravelly silt loam, 30 to 55 percent slopes, eroded. Se:Mahinoo meek. Semiahmoo amuck, drained. SnA Snow silt loam, 0 to 5 percent slopes. SnC Snow silt lunot, 5 to 30 percent slopes. , SOIL SURVEY Description of soil and site Similar to Peo a silt loam, 0 to 5 percent slopes, except that it is somewhat poorly drained. Very deep, well - drained and somewhat exces- • sively drained soils on mums level to gently 1 sloping outwaah terraces. D:ua also applies to Phoebe part of Hong and Phoebe undiffer- entiated groups (8p8, 8r 8, 13(C. 8s 8) except for texture of surface layer. Very deep, well- drained cl:pvpau smis funned from lueas on rolling uplands. Similar to Iteardao silt loan,, U to 5 percent slopes, except t ha t 3U to GU percent of the original surface layer lam been removed by erosion. This Unit occurs OIL law buumua MOW; ptreiii:d and illtcrielllelt streams; consists of gravel, cobblestones, and stones, with vl:ry little liner interstitial material; flooded' every year during the runoff season. I•:igiueering data is not given, as land type is tau variable. This unit is more than 00 percent granite, gneiss, schist, or basalt outcrops. Engineering data are nut given, an laud type b too variaWc. Deep, well - drained soils funned in quarvitc, butt sandstone., or sb:Je, Hiked Willi loeaa and vule:Mie :Lb!' in Upper part; depth 10 quartzite, shade, or soft sandstone ranges front -11) to SO inches. The eroded Scl her sill loam is similar to the umeroded Schumacher silt looms, except that 30 to 50 pert•elt of elm hurl:ice Eger has been removed by erubiun. The uneraled Schumacher gravelly sill loans ore similar to Schumacher silt Junius, except that 15 to 20 percent of the surf ee layer 6 gravel. The eroded Schumacher cher gravelly silt loam, arc also similar to Schumacher silt looms, except that the surface layer is gravelly and 30 to 50 percent of it has been removed by erosion. Similar to Soniobmoo amuck, drained, except that •it is very poorly drained; ulu•r table stays within 1 (out of the burftce. Engineer- ; ing data out applicable. Very deep, poorly drained, organic soil developed -. -t• from talcs, reeds, and sedges ill ba former hakes, and swamps; waster lablc slue - t I:ilea from 12 to 45 inches below the surface. • Seniali,loo muck, moderately shadow, Similar 10 Setuiubww murk, drained, except drained. 'that it is moderately shallow to bedrock, mineral soil, ur lb iek compact layers of punieite. Very deep, well - drained, medium textured soils formed from recent alluvium and loess. TABLE r 0.- -Brief Liche'r;p iO no Of 06/16 une their Dept front surface Classification USDA texture 1 -133 U to 34 Sandy lo:un :14 to 4.1 I .uaoy sand dd to 00 S: 0 to 211 Silt loam 2U to 33 light silty clay 33 to 60 Silt loam 0 10 11 Silt loam 11 to 53 Gravelly silt loam and gravelly heavy loath. 53 to 72 Gravelly clay loam_ - 0 to 17 Muck 17 to 62 Peat es C. 0 to 60 Silt loam c 1' 1' (DATE) /! I' �T- ''rr r r'LT J T' ^, T D. ( SPoK 6+NF $ e,/fl,� �9�/(1 (DEVELOPER'S NAME & ADDRESS) ,411"..... Dear Mr. f 1 J J- L&) SUBJECT• R t 0 (fh', ri "- 557 Er L I - yak 4 o PROJECT # P A 1 -1S4 Additional information with respect to the above projects subsurface soil conditions is required to complete the plans review process. Specifically, representative values for soil percolation rates and soil - subgrade "R" values are necessary to evaluate the proposed pavement section and storm drainage disposal system. The Spokane County Materials Laboratory has reviewed the proposed development plan; made a preliminary investigation of the on -site conditions; and has determined a minimum number of Z percolation rate tests and / stabilotneter "R" value tests are required. It estimates the cost of such soil borings and tests to be approximately $ /Sao excluding utility locatioe Additional :M terials Laboratory remarks are as follows: �ee67 _D .� 4 0 �1 '� AID s The Spokane County Materials Laboratory is available to supply this information during the design review process. This information also may be supplied by any qualified soils firm. The tests and methods must meet Spokane County standards, and be inspected by Spokane County personnel. Please note•that.the above is p'r'eliminary:estimate only; additional tests may be necessary dependent on the cdtidiiidng encountered, iridl therefore, actual fees may vary. Actual fees will be based on hourly equipment usage rates add salary-costs incurred by Spokane County during the progress of the work plus a 10 percenradministration surcharge. Fees will be invoiced monthly as accrued. Please be advised that signature of this letter constitutes agreement to pay for the above described fees. Failure to pay these fees may result in delay in completion of approval of the project or other possible sanctions. If you desire to have us undertake this work, please sign below, and return the original to our office. Respectfully, Gary S. Nelson Planning.Engineer AUTHORIZING SIGNATURE DATE cc: Pngineer k\g\t\r- value.tes 5.i M orl F - /6- $ 1- 1 1 1 1 1 1 1 � 1 1 1 1 1 1 � 1 1 1 1 SPOKANF. COUNTY ENGINEER'S OFY(CE Typical Cross Section I)'cerm Lnation IO: MATERIALS I.AI1,ORATOR' Dar.* FROM: G. NE CSof Please furnish Stabilometer R County Road Name(s) --' RLD1CRP /PLAT No. • Drainage Remarks* IV It y - j "'V Drilling request -.. • ROAD NAME test — _ ."--"---' FUNCTIONAL CUSS • NAME. ! )ndr liQIV L. Ma jor_- Arterta.l ::.... ....: ..- Secondary Arci•,r1a1 Collcccor,_Arterlal Accesni Roa.J: Private Road- • • Thole are gnidclinr'trtfflc Indexes only. necessary to calculate individual traffLc 0 values for cle soils on chi following prnj._ct: TRAFFIC INDEX _e k 12_ op Sec. '(See .R VALUES 'FOR OFFICE USE ONLY FUNCTIONAL CLASS • Traffic ludoxes. 0 actual • Twp. R. accached section map) LOCATION TH IS _cryL.L,T_4' -77 -? LUC W ✓LI - - - - -- - - ' Percolation grentec.than 7r /hr. yes ' No Est. Acc. „r. — 6 ' 4t -7< * Please note any unusual characteristics or soils and /or topography. Are the soils suit- able for the use of drywells? Are there any unusual drainage considerations? TRAFFIC INDEX•* d.tto sl.•.r.1fI.• t „ 'th,:-project .tri, 1 1 1 1 _.. 1_ 1 I IO.NOADTNG GEIR N 0. Sr0GNPNE NO. Department d Transportation EU AL o J ra I 1 ACCEPTANCE S+4PLL'rp SSURANCE SAMPLE "0, I I A.S. HO. , _ EO US AT STATION `_ SCREEN DLST. LAB. '- I SPECS. REMARKS: FLEW DoT E°""°" nu " t al Weight :marks . File. 1 J : a Eng.' T7 .st. Mtls. En NEAT NO. r —� REELIC. TfLCA.CAANO. nil: Is fled TO STA110N It/SEC ON 11EL0 TESL N0. 9 •GCFPT 0 REIER oUANTTY REPRESEXTEO I PRODUCED ON GATE M4 Duran D.W.O (] Y.. - 0 No G HQ LAB tr © EST REPORT FOR • •l 1 l 'ci .f.1\ 1 Sieve_Analysis of Aggregate Ling Ling. Cumulative % • 9� Spec. X . Wt. Grms:- • Retain Pass. Req. Frac ! f.'-}j' -n a - - t i O n c _ 1 1 �/. l 1 ctz' 'bS' ---- 1 1 ctra z3r snly_ ' T ' T ' ' I Gen. :F,ile� Q.C. 2 - WNTMCrw SR N0. SEGTUN ',' O E 0 �nP WNTRA°• ^^ , J SUACO NTMCTOR SANPIEO AT 1 (STE) •T ASPHALT CONTENT N MA DEIGN liken re PMq Engines D.QARUAOm Code Pmn.: (SCAN) Labor Codes T /3 T�.Pv Si 'LE TRANSMITTAL ACCEPTANCE /AS. JRANCEJINDEPENDENT ASSURANCE I"°' 198424' ST SY Coin./ FtrI. Fnnuls rvn "R' V S0e 7Ann Y1 ito. 7o e 44 3 604 HOOT RS. LAGI.O.E_ 7/ 17/ 7 06r. W.A. NO. r1TY T IIOE Al 6vo 1 CATS Mc (ol%t.m 7A3A0 ASPnALT CONTEXT RLGoUTLL AT ANTE S,E RAW S/S ). AaFTL O.nu1 I -I r NO.E / /q7 Other Test Results Los Angeles Test Degradation Test Bulk S. Gravity Sand Equivalent Dust Ratio Stabilometer: "R" Value ,TGf Swell Pressure n 'LS Drainage Factor_ S!a- ) Ora . '4. 7 t/3 DatilAR 3 0 1990 By Lam JOHN R. STRADA P.E. MATERIALIp.ENGIN9Elf 1 1 1 1 1 1 1 1 1 1 1 1 1 I ' 408 NO. i / LOCATION DRILL DRILLING CONTRACTOR SAMPLE HAMMER: WT. X ~ W 1 W 4 K ce u d i SUBSURFACE EXPLORATION LOG 408 TITLE 2. 3 R r 7 . --rd) • r FEATURE rOOROINATE8 •ANGLE BEARING REF. EL. DRILLER /i ( DROP TYPE . 4 T2E gyq S2S 0 . Tc (80 MATERIAL DESCRIPTION qo BORING NO. / ,, SHEET / OF (jLt IL) O r Z4 DATE 1 -, "r ?/) DATUM INSPECTOR /oa.r1 W /G /C../ ' ✓ .� .ij' Cot. I / I CO LIc j G O - r.. 1. NOTE: THE LAO OF SL8S RFACE CONDITIONS SHOWN HEREON APPLIES ONLY AT ThE SPECIFIC BORING LOCATION AND AT ThE DATE INDICATED. IT 18 NOT WARRANTED TO BE REPRESENTATIVE OF SUBSURFACE CONDITIONS AT OTHER LOCATIONS AND TIME8. , rn JOB NO. LOCATION DRILL 7 Z� DRILLING CONTRACTOR — SAMPLE MANNER: WT. 1 S � n J 3 W a C U CC CI. SAMPLE W Z oYQ ow J08 TIT/ F 'FEATURE COORDINATES ANGLE ' • BEARING REF. EL. • DRILLER / 27,- N a -. n DROP, TYP' SUBSURFACE EXPLORATION LOG 23 2 -�. b c , I °inr . r LI W L n b >o 0 1 2 o il 2 u • \0 0 . 5, 117 /ha ) J Q (f st y .. j1 < 5 :3 BORING NO. BFIEET 'IATE DATUM INSPECTOR MATERIAL DESCRIPTION \ , vc g,1T7 S✓aL'c/ 1/4� Per..2^I,io - I 0 ",rc - 1 I -135 7 OF 5 W 1- t 0 0 0 `✓J NOTE: THE LOG OF SLBBURFACE CONDITIONS **OWN I£FttCN APPLIES ONLY AT THE SPECIFIC BORING LOCATION AND AT THE DATE 1 ,DICATED. IT 18 NOT WARRANTED TO BE REPRESENTATIVE OF SUBSURFACE CONDITIONS AT OTHER LOCATIONS AND TIMES. I 254,000 A 1.1 \ df , F '• /so' /es' ; I t i 2033.0 /. • /9 ,47 • i S E . / /a/ . . y 46r 14 y 44 i4Z' J, 1 .. 2 r 34 , 3 33 . k 26 Z5 1 30 3i -X 27 22'"° -i W 25 24 Z3 22 . .3o /9... ' /9: X 9.0 • /c 2/ „5o. 3/ 2 e o • • • /f *1T , 3 /.s' 1 a k( /5 " 010 S Pa n 1,., 7 ' , . . • //, • ti /2, n () ‘1,3 I • /3 /4 6 / 8 / - 7 .tr.--tr. f - tT, 1 1 1 1 1 1 1 1 1 1 1 17 1 1 1 1 1 1 SPOKANE COUNTY ENGINEER'S OFFICE Geotechnical Analysis TO: - MATERIALS• LABORATORY Date: V FROM: ,. /V.L .so AI V Please furnish Stabilometer R values for the soils on the following project, in accordance with the attached ^agreement with the developer. Section a S Township (9S Range Y LI (See attached section map) Project # P. /' 7 C y A '41 ) : ' �. • - ROAD NAME.. ] R VALUES LOCATION TiterAER12.0A /r 1l s T " Other Tests Needed Listed Below: NAVE A)7A(a E.() #F <UL TV etc /M.mss nriobJC Q O ,A !i ,c a .Q Yo'/ T A/ c e) Drainage - Percolation greater than 72 "lhr. Yes A No Est. Act. 7L ° f Drilling . Request Estimate. • , , Remaiks' °• 3 T-M • • Priority (1) ; Needs to ' be drilled. • (2)', Estimate of 'R' value'and perc given. These estimates can be ' ';_ used as•ajbasis tor'plan appioval with note 'actual surfacing �..£..: dePtlis..will be:based:on 33: value tests." '(3) Estimate,ot 'R'•value "and.perrc given. Not necessary to drill. ?° �,.2a1 " c� l "�cz XSECFORM.0N7 _5',4 me As her • 'Please notd-any unusual characteristics of soils and/or topography. Are the soils suitable for the use of drywells? Are there any unusual drainage considerations? 1 -14 1- 1- a JOB H0.• 9 14 ')t r ` n_.1013 TITLE Rini r rn .., r r— I— r.yr< y+h LOCATION 1 NT 1�r^ I nn):= • 1'1R ; - ')l r DRILLING CONTRACTOR kn1.L. SAMPLE HAMMER:• WT. - 'DROP ` SAMPLE Z W . :. O 0 o K i' Y z H _ 2 ra W f' • 1- Q • W 2 W W 4 4 1.6 yr W tJ QQ t O i s H m a 3 0 La W 04 t Z 10 U ° Umt aS z m =V 0' 1' - I ' • SURFACE BORING Inese G HO. 1 SUB E t OF ^ 0q rN EXPLORATION LOG ;c x 1 . 1 . 1 1 6 4 ma 1- ' 1 " DRILLER f 1. - n I 1 1 TC TYPE MATERIAL DESCRIPTION 'SA N0Y DIL,r 1.y e.1 ;,;Ec 2 S yy S 2S `-1 INSPECTOR 11 ' '14 • T 1:in EL To CJr.13 L;-S WITI, SIAN:OY SILT . ID 'h= CI ,- ) 1.1. 7 C f -O DATE 71 P '.:CL_ - )L:.I •On; D :0 '1 5 1s11L. C._f.T` -:C ; 70a (.Rt 1i nit 12 Fr20 0-1 To L. in: / . jI ITq.;1ii� 'L JUL.D r..JT f'nr 1 tiTniti: i , 11LL_i) ;Jr-- ta U2..0. D,.nr n T1K.I s, Mc_ 1,Lar`_2 .w T. i1 L ` ;imn.f.. ry, :O I ti t_55 Ti .... I I ri' . T= . T Nc rx� 11v \1.. 7J" 1R J et 0 0 2 0 1 1 - 1 1 1 1 1 1 1 1 1 1 1 1 5 . ti ... �.. / ( • BORING NO. ; SUBSURFACE SHEET OF EXPLORATION LOG c `� RIDc,crnoic t.STATc Hth S LOCATION ;y Ttmr { = 2r Ar.h DR r7 r^ AJF A! E CaIZNEtt J08 NO. p IL C ` ' ' JOB TITLF DRILLING CONTRACTOR n''IC CO DRILLER T) t_ir , i 1" e_ INSPECTOR Ti I.-h rc SAMPLE HAMMER: WT. DROP TYP' SAMPLE W O O U w r (- x Z . ; r: ¢ MATERIAL DESCRIPTION r" ,„, K W 0 W J t ' CC I� \ O th W O QO 2 Q -I 0 O a � m w ; O 0 2' — - 1 '1 15 m`-D. 5146..0 7 -tLr /ol: —r 5 C Lit/ 25 ( -1 C LAuE TJ F.rt_ -I T,. 7HI.C 5.Lr _ Jm: rJ -ut-. DATE S"�I "`'a EN.D ')1- ISO r..:3 1 i' -4O L:;T 10 N tQit�ep 1 ;C GAL. 7:2 '100GlL. ..n . (.) i'.4101 11.:o Ttii„I4; ;I„ TU Ito L': !N ll'IYCca . y \ 1Y \1t..UTE� \' LL ) ::,JN41 - •SOT1• Tf+ KS, T'YE Y.:Aflr. 7N:_',iCL� to \IY'LOI,T T: 1 RSiuWr. 1; ?`iLC L, IT,ar.. RI'.-: - .,L TtIA' : 7.1" P=a F.-:L. ,_ e:r l :, 1 1 4 RIOGEM 5 1' 1 :IF -I' ^ fi ---1-`;: 1 4,6 -COURT F T .... T h 21' 1 30 31 1 32 5 dELLOWSHIP 1 J__ 6 0 / sea V iN /3 rs 1 1 1 1 1 1 1 1 1 1 1 1 1 1' 1 2 .1 2 . 19 15 17. 1.6 1.5 14 1.3 1.2 1 . 1 1.0 0.9 0.1 0.7 0.6 0.5 0.. 0.3 0.2 0 STRUCTURAL DESIGN CHART FOR FLEXIBLE PAVEMENTS L •- = ll.STABILOMETER R LUE' 0 . 1 10 20 •30 .• 40 150 1 60 7 .. 1 1 1 ..� rt."' !J.k 1 70 BO 90 111011111 , 11i1 aitl 01. 111111111i .. CMU ,L ►a}1 ■1ar1lraarall c••• •\ra \r 1 ►rr 111511110112111(11110111113 • .raraarrrIl\ra ►� \r ' 1a \Ile tilt €wkrfi 1111101151511.1•11•111 r rraianae.Iilll 'rra■arara. 1: rrra q .JI�11.1y_ 1rr \ti rarer\ 'rraraaaaaili aaual►rrr b. i►ria\r:ra a u rar\raar11r1� rrl_ . l�Rlltmoaa ■rrraaaaaa \a\ :11111 t1t1 V4 2.3 !11111 0.25' ACP • 0.50' C19 OR 0.25' ACP +0.75' AC6 0.5 I. I c�onalaar rr ar111 1 I i 1 •I II PI M= • 2.9 lltll�l l I till 22 111111111111iC= ' �IIIIi1��It11tICua ■o■ o.7 s' ACP , O.es c1e. ' �'rM 11111112111111111 MI ` as OR 0.3S' ACP • 0..1' AC6 1�y.w MNI/�(.■.. 2.6 \•111011:515• f. 1a11 (Iltaatlt 1 ' ' ' 1 1 ' ' r tl.... P /r. ■.. 511110111111215 511110111111215 .all ■ ■ ■.II�i ■ ■u 3.5 1� IIIIII 0.35 ACP + 0.50' C16, ur�.l..../IVs • OR 0.35' ACP + 0.35' ACS rat.4.. ■PI 2.a . ...nvaan.. VI,I 0.35' ACP • Mr..- '■■Iita7 I I 11 1 ja "MM Ap y tz 0.30' ACP ■. �� id�disywa� MN 10.■PIQe�1G 0.25' ACP ■.■. . `. � .ia. 55 W. 0.20' 1 w , ■ ■. Y_ VMS 1 .■■ \ra tl 11 r ARM III 1 ■■ \ 0 ►: \` I , 'x" P 7 0 11• ACP ....e aa rar\rrL . dorAln�o .. .c.raR\�tt>ti;tl ■■■ ■..■..r.■PA;u ■.. ttnlIit� ■rarraa► ■■.00aurA Piilr.u. aa.w I 1 rra \ ..■ ■1 �a�r laar rra\ c2••r SI s - r■..Ir.. 1 "a fit III• ..' G a MI aa\ra...rdr1C■ va 511551•111511101011•151515111011 \' 'e rrarrraa.a .... AR \ C0► ' II •1Mrrn0. I llilltl t gt t' a nig nosMMuaa r / ► aan \I, a\a6■aarrr rlld■■ Vi.. .ca►rarl►rmare pro . �■■• 1.■. Ya a \era`nuumua�a,eus. .v s vn.. ay...al1a ■ ■ ■la almond 't u. .ts.w ww.3.:7'z'4 7x11 ■ lir 91111111f111f8' ,H ra\rrraall(\\ I,f to rra Of Ct:rC \ \ r 11 to agar + ' . �Yf a 1 1 101011 1 a . ABISA I I 'iiiiiiiii1� o NIMMI Dw; 11. � I. �a " .Ni1�. a.l 11i � 1 1 1 1�1U I= ° : EEEI ?i11111 I I mo ; 111111111 .- r. ' r t, ' C • -.r (1 1. 'k ,;, • it/ /,: 1 ' U S • 1 I 'i :.4,. .; ^ 1 EXAMPLE:.. i • Oiven en 1 value of 25 and a Iralli< index of 0.0, Ihickn•s r•.vir.m•nrs con 0e de,.rmm•d as loll.ws: An •uiv•lenl rsay.I depth .11.05' ( round 10 1.7) .1 p.ini A. A modified surfacing d•pih o11.05 Iee1 01 p•inl 5 for o pavement •1 0.3510•1 ACP 1 0.50 loon Cla, or 0.35 1001 ACP • 0.31 1901 ACS. A modified surfacing depth o11.43 fool ( round to 1.412 for pov•m.n1 of 0.35 100i ACP. 1.■(1, • Figure 326 -2D a C /11 2.0 2.5 ODIFIEO SURFACING DEPTH (FEET) 1 -144 3.0 SEPTEMBER 1977 i11 1 1 1 11 1 1 1 1 1 1 1 1 1 1 1 1 1 1 .'.I. .,, .ii(i }.!1.i1 Off � :I :.i;`, • N1A1NTENANCG PLAN r1 • L i The stonri■ater drainage retention pond located within Utility Lot "B" ofRidgemont Estates,North 3rd Addition (labeled "Drainage Pond 3A" on the plat's Drainage Map) shall be maintained by the •Homeowners' Association in accordance with the recommended maintenance schedule below. This maintenance plan and schedule is only a rough, guide; the intent is to keep the stormwater retention area fully functional and maintained as a neighborhood asset. .The grass should be kept healthy and at lawn height, weed growth should be restricted, and drywell grates must be kept clear and unobstructed. . MAINTENANCE TASK FREQUENCY •1:» Summer (March - October) for STORMWATER RETENTION POND "3A" „i:'.1 , 11. Winter (November - February) Clear snow & ice off drywell grates i:_ • Weekly or as necessary to keep grass depth to 4" or shorter " Dry Periods: Every 4 days for 1 hour min. * Otherwise, water as necessary to keep grass green & healthy Remove noxious weeds as they appear; "weed & feed" twice /year Twice per year As necessary, incl. end of autumn As necessary to keep grates clear 1 -145 Dear Doug: cc: project file S P O 1c A N E OFFICE OF THE COUNTY ENGINEER Ronald C. Hormann, P.E., County Engineer August 4, 1994 Doug Christenson Simpson Engineers, Inc. N. 909 Argonne Rd. Spokane, WA 99212 Dean Franz, P.E. Plans Review Engineer encls: Plans (1 set) Calculations (1 copy) Comments (1 page) Lot Plans Lot Plait Requirements sp Subject: Ridgemont Estates North No. 3 Review #3 Spokane County No. P -1684B C2 O A DIVISION OF THE PUBLIC Dennis M. U N _r. WORKS DEPARTNENr Scott, P.E., Director A review cf the road and drainage plans for this project has been accomplished. Areas of concern to us are indicated in the attached Review Comments/ As with previous reviews, the review comments to the regional retention pond located off-site will be provided separately. Please make the corrections and resubmit them to this office in order that the review process may proceed. Please provide 2 copies of any revisions for the project with each submittal. If you have any questions about this review, please contact us at 456 -3600. Thank you. Sincerely, Spokane County Engineers 10261V. Broadway Ave. • Spokane. WA 99260-1)170 (509) 456 -3600 FAX: (509) 324 -3478 TDO: (509) 324 -3166 REVIEW COMMENTS SPOKANE COUNTY DIVISION OF ENGINEERING & ROADS 1026 W BROADWAY, SPOKANE WA 99260 -0710 PHONE (509)456 -3600 FAX (509)324 -3478 REVIEW #: 3 REVIEWER: Dean Franz. P.E. PROJECT #: P -1684B DATE: 1& August 1994 PROJECT NAME: Ridgemont Estates North 3rd Add. The review comments for the regional retention pond, located off -site east of the property, will be provided separately. Lot Plans Comments Applicable to Lots 4 and 5, Block 2 L1) Show Entire lot in lot plan. Either put the lot plan on a legal size or 11" x 17" paper, or reduce the scale. Show lot line dimensions. L2) Reference and attach a typical cross - section of the drainage ditch and parallel maintenance drive. L3) Show and identify the centerline of the existing ditch. Miscellaneous • Pond 3A Maintenance Plan: Add a summer requirement to clean drywell grates of debris monthly, and after a rainstorm. Add a requirement to annually inspect, clean and remove any debris and silt collected within a drywell. • The maintenance of Pond 3A will be the responsiblity of the homeowner's association. Dave Renz has been asked to proceed with the formation of this association, which will encompass Ridgemont Estates North 3rd & 4th Addition. Dedications and a covenant will need to be incorporated into the final plat documents to formalize ownership and maintenance responsibilities. :0 I • CROHIC S T) w /o FEE • 40 u.i I. . • C. . 9 / a / 'O. / Building Setback Line— / / O. / S. / 0• JULY 20, 1994 LOT 4 BLOCK 2 RIDGEMONT ESTATES NORTH 3RD ADDITIO • , ,/ ` ,,...7-3., ". / \. , Y . c., c... / ., \ ,.../ ' // , „ , , ... / • , ..)` / 4 ., / :--------< :::nIRES 7117r (§impson Engineers, Inc. erfiL ENG:::EERS, & LAND SulivErCRE, 909 ARGONNE, RGAO SPOnANC. ,+A 99212 PH 926-;Z:: / ct 0) • CO 0. 589'46 "E iV� S E. ,S' 1/ 11 \ toe wn sei ,., �I 0 A. � /: <p ' 4 , 1 / • • • • JULY 15, 1994 LOT 5 BLOCK 2 / RIDGE MONT ESTATES NORTH 3RD ADDITION / 12;00' • • EXPIRES 7/17' 9 S 1" = 20' i CR4PHIC SCALE flit FEET) 0 10 20 4c impson , inners, Inc. CIVIL ENGINEERS & LAN YCRS N 909 ARCONNI: ROM SPOFANf. WA 49212 PM 976-132: 0 1 0 &IL COUNTY OFFICE OF COUNTY ENGINEERS CALCULATION SHEET ,..sscription: Dra) Calc,40 Project No.: P -1684M C... Calc. by: 0. °F _ . et,.... Date: 6 - 17 - 9 4- Title: 2:4 .-+ F.4 4 It 3 i f Checked by: Date '.__ . Sheet of Notes: i , p0ADp_a __ . t ce , 14 __.___ .i___ -± Rizi -56 . 2€tn-I p h4,,,, fr a_:_(5,9- 7 ,, t ): ' . i9:1-6 . :, 2._ 1 . I : 1 34. 9 - 2 ". - I 60 ", .,-- I' p Ims_ 9-472 _ ci OP:Ye._ I __ _ __ 1 9_1.4 0 _______I a.:. "Z.- ' . , . - - ' _ _____ _ _( ... ... *3..0_ iik...1 * _ . . , . . . „ . . _ .00.01_— \ir) : _...._:.. J. I__ . . i 1 , . . : ....:_____ .. , . — .. . i (5.; -9 3/4' ta...27- _._.._ • : „f_zioki 3.- -i134i-s_4, _ • ._ . __.._ ... .. __—__.16 _ ist: firPrc ....itoi_ fNmpqi _ISO '1-4 a fa- 1 ; -.---. - '5 0) -.+Igiaa“'s4 ' — . . \ — / __:__ f ( CFP ri...,_3;(1-.0.. 142._): . _ _...5.0.-7r 5 7 0 * Por, ” _. 7 . &-).5.1- .:. olict.,0_• 3 I . , . , . _ , .3 40 447-5 o _ .,Al 6“.1, 1 Po .:4_ .' _ ..C..5:0_-y.r)...L 6.& - sic IT CO __ 5 C rolts. F;54 _. Ma95.&--,t_ .20 ;a. 0 i gs4,, xg. 3 if — D Ar"Z— _ (6- 1? -9-It-) N 1,8- b f' �f- 5o7v1. .rC�tiZ1 _. ago,^- � r !U /1 I/ 1 I 3A_ ,k/a — po 3 VDIu.. Y Caics I Cta -/ 1 - Rr2a -k) /u i_ p/1.4. /R -loo ._.Re ■ - .. r z hp 1Q3 -50 ,2_-:p - 50+� - ... ?/0 - /oom iA) 7)0O Gc•N�t. u aa 11 /• 4 r r Ay d ro , VOL_ P up -- o2 4 ltra 50 - y r- V 50 50 50 53 /O - - S-0 - / 6Q POND -2 Version: 5.17 S /N: Page 1 EXECUTED: 08 -04 -1994 08:16:17 • ********************* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** * * * Ridgemont Estates North 3rd Add. (P- 1684B) * Pond 3A, with 6 Type 'B' Drywells * 100 -yr, 24 hr storm event; Review #3 (8- 04 -94) * * * ********************* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** Inflow Hydrograph: c: \pondpack \p1684 \IN -100 .HYD Rating Table file: c: \pondpack \p1684 \3A -R .PND - - -- INITIAL Elevation = Outflow = Storage = GIVEN POND DATA ELEVATION OUTFLOW (ft) (cfs) 2020.00 2020.50 2021.00 2021.50 2022.00 2022.50 2023.00 2023.50 2024.00 CONDITIONS--- - 2020.00 ft 0.10 cfs 0 cu -ft 0.1 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 STORAGE (cu -ft) 0 6,598 13,703 21,320 29,450 38,099 47,279 57,009 67,314 CJW4. cogc's 4 D. Fes., - Time increment (t) = 0.100 hrs. INTERMEDIATE ROUTING COMPUTATIONS 2S /t 2S /t + 0 (cfs) (cfs) 0.0 0.1 36.7 42.7 76.1 82.1 118.4 124.4 163.6 169.6 211.7 217.7 262.7 268.7 316.7 322.7 374.0 380.0 POND -2 Version: 5.17 S /N: Page 2 EXECUTED: 08 -04 -1994 08:16:17 Pond File: c: \pondpack \p1684 \3A -R .PND Inflow Hydrograph: c: \pondpack \p1684 \IN -100 .HYD Outflow Hydrograph: c: \pondpack \p1684 \3A .HYD INFLOW HYDROGRAPH ROUTING COMPUTATIONS TIME INFLOW I1 +I2 2S /t - 0 2S /t + 0 OUTFLOW ELEVATION (hrs) (cfs) (cfs) (cfs) (cfs) (cfs) (ft) 11.000 0.00 11.100 0.00 0.0 11.200 0.00 0.0 11.300 0.00 0.0 11.400 0.00 0.0 11.500 0.10 0.1 11.600 0.10 0.2 11.700 1.40 1.5 11.800 2.80 4.2 11.900 4.10 6.9 12.000 15.50 19.6 12.100 32.00 47.5 12.200 26.60 58.6 12.300 15.60 42.2 12.400 9.90 25.5 12.500 7.70 17.6 12.600 6.30 14.0 12.700 5.20 11.5 12.800 4.60 9.8 12.900 4.20 8.8 13.000 4.00 8.2 13.100 3.70 7.7 13.200 3.40 7.1 13.300 3.20 6.6 13.400 3.20 6.4 13.500 3.10 6.3 13.600 2.80 5.9 13.700 2.80 5.6 13.800 2.70 5.5 13.900 2.60 5.3 14.000 2.40 5.0 14.100 2.30 4.7 14.200 2.20 4.5 14.300 2.10 4.3 14.400 2.10 4.2 14.500 2.10 4.2 14.600 2.10 4.2 14.700 2.10 4.2 14.800 1.90 4.0 14.900 1.90 3.8 15.000 1.90 3.8 15.100 1.90 3.8 15.200 1.90 3.8 15.300 1.70 3.6 15.400 1.70 3.4 - 0.1 - 0.1 - 0.1 - 0.1 - 0.1 - 0.0 - 0.0 0.9 3.5 7.3 19.3 54.8 101.4 131.6 145.1 150.7 152.7 152.2 150.0 146.8 143.0 138.7 133.8 128.4 122.8 117.1 111.0 104.6 98.1 91.4 84.4 77.1 69.6 61.9 54.1 46.3 38.5 30.7 24.9 20.6 17.4 15.2 13.5 12.2 11.1 0.1 - 0.1 - 0.1 - 0.1 - 0.1 - 0.0 0.2 1.5 5.1 10.4 26.9 66.8 113.4 143.6 157.1 162.7 164.7 164.2 162.0 158.8 155.0 150.7 145.8 140.4 134.8 129.1 123.0 116.6 110.1 103.4 96.4 89.1 81.6 73.9 66.1 58.3 50.5 42.7 34.7 28.7 24.4 21.2 19.0 17.1 15.6 0.10 0.00 0.00 0.00 0.00 0.00 0.11 0.29 0.79 1.53 3.82 6.00 6.00 6.00 6.00 6.00 6.00 6.00 6.00 6.00 6.00 6.00 6.00 6.00 6.00 6.00 6.00 6.00 6.00 6.00 6.00 6.00 6.00 6.00 6.00 6.00 6.00 6.00 4.90 4.07 3.47 3.03 2.72 2.46 2.25 2020.00 2020.00 2020.00 2020.00 2020.00 2020.00 2020.00 2020.02 2020.06 2020.12 2020.32 2020.81 2021.37 2021.71 2021.86 2021.92 2021.95 2021.94 2021.92 2021.88 2021.84 2021.79 2021.74 2021.68 2021.61 2021.55 2021.48 2021.41 2021.33 2021.25 2021.17 2021.08 2020.99 2020.90 2020.80 2020.70 2020.60 2020.50 2020.41 2020.34 2020.29 2020.25 2020.22 2020.20 2020.18 POND -2 Version: 5.17 S /N: Page 3 EXECUTED: 08 -04 -1994 08:16:17 Pond File: c: \pondpack \p1684 \3A -R .PND Inflow Hydrograph: c: \pondpack \p1684 \IN -100 .HYD Outflow Hydrograph: c: \pondpack \p1684 \3A .HYD INFLOW HYDROGRAPH ROUTING COMPUTATIONS TIME INFLOW I1+I2 2S /t - 0 2S /t + 0 OUTFLOW ELEVATION (hrs) (cfs) (cfs) (cfs) (cfs) (cfs) (ft) 15.500 1.70 3.4 15.600 1.70 3.4 15.700 1.70 3.4 15.800 1.50 3.2 15.900 1.50 3.0 16.000 1.50 3.0 16.100 1.50 3.0 16.200 1.50 3.0 16.300 1.40 2.9 16.400 1.40 2.8 16.500 1.40 2.8 16.600 1.40 2.8 16.700 1.40 2.8 16.800 1.30 2.7 16.900 1.30 2.6 17.000 1.30 2.6 17.100 1.30 2.6 17.200 1.30 2.6 17.300 1.30 2.6 17.400 1.30 2.6 17.500 1.30 2.6 17.600 1.30 2.6 17.700 1.30 2.6 17.800 1.30 2.6 17.900 1.30 2.6 18.000 1.30 2.6 18.100 1.30 2.6 18.200 1.30 2.6 18.300 1.30 2.6 18.400 1.30 2.6 18.500 1.20 2.5 18.600 1.00 2.2 18.700 1.00 2.0 18.800 1.00 2.0 18.900 1.00 2.0 19.000 1.00 2.0 19.100 1.00 2.0 19.200 1.00 2.0 19.300 1.00 2.0 19.400 1.00 2.0 19.500 0.90 1.9 19.600 0.90 1.8 19.700 0.90 1.8 19.800 0.90 1.8 19.900 0.90 1.8 20.000 0.90 1.8 10.3 9.7 9.3 8.9 8.4 8.1 7.8 7.7 7.5 7.2 7.1 7.0 6.9 6.8 6.6 6.5 6.4 6.3 6.3 6.2 6.2 6.2 6.2 6.2 6.2 6.2 6.2 6.2 6.2 6.2 6.1 5.8 5.5 5.2 5.1 4.9 4.8 4.8 4.7 4.7 4.6 4.4 4.3 4.3 4.2 4.2 14.5 13.7 13.1 12.5 11.9 11.4 11.1 10.8 10.6 10.3 10.0 9.9 9.8 9.6 9.4 9.2 9.1 9.0 8.9 8.9 8.8 8.8 8.8 8.8 8.8 8.8 8.8 8.8 8.8 8.8 8.7 8.3 7.8 7.5 7.2 7.1 6.9 6.8 6.8 6.7 6.6 6.4 6.2 6.1 6.1 6.0 2.10 1.99 1.91 1.82 1.73 1.67 1.62 1.59 1.55 1.51 1.48 1.46 1.44 1.42 1.38 1.36 1.34 1.33 1.32 1.32 1.31 1.31 1.31 1.30 1.30 1.30 1.30 1.30 1.30 1.30 1.29 1.23 1.17 1.12 1.09 1.06 1.05 1.03 1.02 1.02 1.00 0.97 0.95 0.94 0.93 0.92 2020.17 2020.16 2020.15 2020.15 2020.14 2020.13 2020.13 2020.13 2020.12 2020.12 2020.12 2020.11 2020.11 2020.11 2020.11 2020.11 2020.11 2020.10 2020.10 2020.10 2020.10 2020.10 2020.10 2020.10 2020.10 2020.10 2020.10 2020.10 2020.10 2020.10 2020.10 2020.10 2020.09 2020.09 2020.08 2020.08 2020.08 2020.08 2020.08 2020.08 2020.08 2020.07 2020.07 2020.07 2020.07 2020.07 POND -2 Version: 5.17 S /N: Page 4 EXECUTED: 08 -04 -1994 08:16:17 Pond File: c: \pondpack \p1684 \3A -R .PND Inflow Hydrograph: c: \pondpack \p1684 \IN -100 .HYD Outflow Hydrograph: c: \pondpack \p1684 \3A .HYD INFLOW HYDROGRAPH ROUTING COMPUTATIONS TIME INFLOW I1 +I2 2S /t - 0 2S /t + 0 OUTFLOW ELEVATION (hrs) (cfs) (cfs) (cfs) (cfs) (cfs) (ft) 20.100 0.90 1.8 20.200 0.90 1.8 20.300 0.90 1.8 20.400 0.90 1.8 20.500 0.90 1.8 20.600 0.90 1.8 20.700 0.90 1.8 20.800 0.90 1.8 20.900 0.90 1.8 21.000 0.90 1.8 21.100 0.90 1.8 21.200 0.90 1.8 21.300 0.90 1.8 21.400 0.90 1.8 21.500 0.90 1.8 21.600 0.90 1.8 21.700 0.90 1.8 21.800 0.90 1.8 21.900 0.90 1.8 22.000 0.90 1.8 22.100 0.90 1.8 22.200 0.90 1.8 22.300 0.90 1.8 22.400 0.90 1.8 22.500 0.90 1.8 22.600 0.80 1.7 22.700 0.70 1.5 22.800 0.70 1.4 22.900 0.70 1.4 23.000 0.70 1.4 23.100 0.60 1.3 23.200 0.60 1.2 23.300 0.60 1.2 23.400 0.60 1.2 23.500 0.50 1.1 23.600 0.50 1.0 23.700 0.50 1.0 23.800 0.50 1.0 23.900 0.50 1.0 24.000 0.50 1.0 24.100 0.40 0.9 24.200 0.40 0.8 24.300 0.40 0.8 24.400 0.40 0.8 24.500 0.40 0.8 24.600 0.30 0.7 4.1 4.1 4.1 4.1 4.1 4.1 4.1 4.1 4.1 4.1 4.1 4.1 4.1 4.1 4.1 4.1 4.1 4.1 4.1 4.1 4.1 4.1 4.1 4.1 4.1 4.0 3.8 3.6 3.4 3.3 3.2 3.0 2.9 2.8 2.6 2.4 2.3 2.2 2.2 2.1 2.0 1.9 1.7 1.7 1.6 1.5 6.0 5.9 5.9 5.9 5.9 5.9 5.9 5.9 5.9 5.9 5.9 5.9 5.9 5.9 5.9 5.9 5.9 5.9 5.9 5.9 5.9 5.9 5.9 5.9 5.9 5.8 5.5 5.2 5.0 4.8 4.6 4.4 4.2 4.1 3.9 3.6 3.4 3.3 3.2 3.2 3.0 2.8 2.7 2.5 2.5 2.3 0.91 0.91 0.91 0.91 0.90 0.90 0.90 0.90 0.90 0.90 0.90 0.90 0.90 0.90 0.90 0.90 0.90 0.90 0.90 0.90 0.90 0.90 0.90 0.90 0.90 0.89 0.85 0.81 0.78 0.76 0.73 0.69 0.67 0.65 0.62 0.59 0.56 0.55 0.53 0.52 0.50 0.47 0.45 0.44 0.43 0.41 2020.07 2020.07 2020.07 2020.07 2020.07 2020.07 2020.07 2020.07 2020.07 2020.07 2020.07 2020.07 2020.07 2020.07 2020.07 2020.07 2020.07 2020.07 2020.07 2020.07 2020.07 2020.07 2020.07 2020.07 2020.07 2020.07 2020.06 2020.06 2020.06 2020.06 2020.05 2020.05 2020.05 2020.05 2020.04 2020.04 2020.04 2020.04 2020.04 2020.04 2020.03 2020.03 2020.03 2020.03 2020.03 2020.03 POND -2 Version: 5.17 S /N: Page 5 EXECUTED: 08 -04 -1994 08:16:17 Pond File: c: \pondpack \p1684 \3A -R .PND Inflow Hydrograph: c: \pondpack \p1684 \IN -100 .HYD Outflow Hydrograph: c: \pondpack \p1684 \3A .HYD INFLOW HYDROGRAPH ROUTING COMPUTATIONS TIME INFLOW 11 +I2 2S /t - 0 2S /t + 0 (hrs) (cfs) (cfs) (cfs) (cfs) 24.700 24.800 24.900 25.000 25.100 25.200 25.300 25.400 25.500 25.600 25.700 25.800 25.900 26.000 0.30 0.30 0.30 0.20 0.20 '0.20 0.20 0.10 0.00 0.00 0.00 0.00 0.00 0.00 0.6 0.6 0.6 0.5 0.4 0.4 0.4 0.3 0.1 0.0 0.0 0.0 0.0 0.0 1.3 1.2 1.2 1.0 0.9 0.7 0.6 0.5 0.3 0.0 -0.0 - 0.0 - 0.0 -0.0 2.1 1.9 1.8 1.7 1.4 1.3 1.1 0.9 0.6 0.3 0.0 - 0.0 - 0.0 - 0.0 OUTFLOW (cfs) 0.38 0.36 0.34 0.32 0.28 0.26 0.24 0.22 0.17 0.12 0.02 0.00 0.00 0.00 ELEVATION (ft) 2020.02 2020.02 2020.02 2020.02 2020.02 2020.01 2020.01 2020.01 2020.01 2020.00 2020.00 2020.00 2020.00 2020.00 POND -2 Version: 5.17 S /N: EXECUTED: 08 -04 -1994 08:16:17 * * * * * * * * * * * * * * * * ** SUMMARY OF ROUTING COMPUTATIONS * * * * * * * * * * * * * * * * ** Pond File: c: \pondpack \p1684 \3A -R .PND Inflow Hydrograph: c: \pondpack \p1684 \IN -100 .HYD Outflow Hydrograph: c: \pondpack \p1684 \3A .HYD Starting Pond W.S. Elevation = 2020.00 ft * * * ** Summary of Peak Outflow and Peak Elevation * * * ** Peak Inflow = 32.00 cfs Peak Outflow = 6.00 cfs Peak Elevation = 2021.95 ft * * * ** Summary of Approximate Peak Storage * * * ** Initial Storage = 0 cu -ft Peak Storage From Storm = 28,567 cu -ft Total Storage in Pond = 28,567 cu -ft Page 6 »»> Warning, initial pond outflow > 1st inflow ordinate. ««< SID 0 Sip 0'Z£ = xeutb QAH' fiE \689Td \Xoedpuod \:o :aTTA x = xeutb QAH' 001- NI \689Td \Xoedpuod \:o :ai ?3 x (s ag) awn L - Z'£T Qa c = - T'ET t-r t - 0•£T - 6'ZT - 8'ZT - L' ZT - 9'ZT - S' ZT ' - 4'ZT - £'Z1 Ate - 8•TT - I 1 0'66 0'06 0'9C O'ZE 0'8Z 0'6Z 0'0Z 0'9T O'ZT 0'8 0'6 0'0 (sjo) Moi3 13 S6•TZOZ = uorlenaig Need s3o 00'9 = Mo13'3n0 Xead s3o 00'ZE. = Moi;ul )(Pad LT:91:80 6661 -b0 -80 :QaInoaxa QAH' li£ \689Td \Xoedpuod \:o :gde.JbolpAH Moi33nO QAH' 001- NI \689Td \Xoedpuod \:o :gdeabo.JpAH Moi;ul QNd' H- `d£ \689Td \Xoedpuod \:o :aTTd puod L abed :N /S LT'S :uotsaaA Z -QNOd - 6' I - £'TT t impson Engineers, Inc. CIVIL ENGINEERS AND LAND SURVEYORS N. 909 Argonne Road • Spokane, WA 99212 (509) 926 -1322 • Fax: 926 -1323 TO: DCtil PRAIZ P. SPoKAME C EIJ COLA IF IZS I SUBJECT: 2DGDyloJ1T F_s AloerY -.Z&& ADDma.l ; hEAr,ti446 DATE: \j u1-y , /994- A--MCME) A-P- - nu r CAP AF F:P.(.F/ OF TNF_ Fn'Jnw','. : • D NAGS ReP02T I Ph -r I — ON-SITE ) • Lor PC.A+JS j • P _ P - i J Z D a W P P LA+J .- Peo -I LF • 3 A-DhlnbiJ DRAINAGE MAP RECEIVED JUL 1 9 1994 SPOKANE COUNTY ENGINEER Au_ nF Ytug_ C..,uun.IT< DRrED 2a JVNE 1a794- HAVE 8EEtJ AbDIEcs e . EXCEPT": • /10 VA w HICH 1 UOT IJFrA ef, Pr*. nu Z. VNo Aug DIse -UV ms_1 • t (,) / WHICH WILL— BE SE7-uP E4 114C DEVELoPeC. 11 FaU.c w 1 kJt r AG ES ae THE PP.MNAGE Ratter A-RE A Ind /REIMS ED : -m,F PA-ee A$Jh MB LE err Cektm -NTS 1 -2.2- TH I- 2-'l • 1 11-uLU 1 - 35 • 1 - 4-C. 71-11W 1 -5 I 1- 5( THeu 1- 59 I - CA TidaU 1 -1 • I 9 TH PJJ i I- 8'I 71-(2-0 1 -9 D I - 9 5 TNR.0 1 -9 1 -1 Th n I -IIS I -I11e. I -11 I -119 1-125 1 - 111 ALSO Mr-ACP LS Vout Rst U sum DgMAln -CE ErPoPr MJh m.A&\ Fi H(& S `fH/FA/Ic Vat Sig nen eoo CN P.ISTEO 503 1 • GR.4:HIC S�' //ALE..( /N FEET.) 0 / 10 /20 SAO `r0 / /�• / � / Y • / /42 • • / / Building .Setback in • • 0. / � JULY 20, 1994 bp LOT 4 BLOCK 2 RIDGEMONT ESTATES NORTH 3RD ADDITIO �� / \ /' is / / �' o / cif / / C • / : SN ., EIIPIRES 7/17' 9 S I/ 0 O • c / / O 1 / ee i/� / / / • / ( 7 2 FmnE•C 1940 impsn Engineers, Inc. CML ENGINEERS & LAND SURVEYORS 14 909 ARGONNE ROAO SPOKANE. 'SA 99212 PH 926 -132' LU I / / 0 / / / \/ / N A» / \ / R/ 3o I JULY 15, 19 94 / J LOT 5 . BLOCK 2 / RIDGE / tNT ESTATES NOIiTH 9RD ADDITION i 1 EXPIRES 7117/ 9 S' /d-m40/1 15.6 lnpsun l ineers, Inc. CI�AI ENGINEERS & Lan " RVEYORS N 909 ARGONNE ROA SPOKANE. '/A 99212 P11 976 -U2: , S 0 U' C.1 CRAPHIC SCALE (IN FEET) 0 10 20 -10 gin, 1" = 20' J I crete tpa ..., 4" k d at culvert end, top of pad 2020 00/ \� + O 27 -Dia. R.C.P. Culvert 142 LF ± @ -1% S. to I.E. 2021.50 (S) I.E. 2020.00 (N) from CB, 5 +56.70 18' LL of tp to Conc. Pod @ Pond floor 5 10' Drainage Easement Building Setback Line Corr- Intel,, Type 2, with - -c Metal Frame & Grate, Type 2 Spokane County Standard Ste 5 +50, 18' Lt. of Q Top of Crate 2025.12_ ;:)A 5 \-°- �10 Dio. C M.' .m Conc. Inlet 1 etch Basin Type 2 2 rop x 6 Lf. 0 -3% I.E. 2022.70 (West) I.E. 2022.50 (East) ,JULY 15, 1994 - LOT 6 BLOCK 1 RIDGEMONT ESTATEXNORTH 3RD ADDITION • GRAPHIC SCALE (IN FEE f) 0 W pal 40 I II 1 1 II I N OF v Ni �� c 0 " S 1 EXPIRES 7/17/ 9S" 7 ■ ,Vfmpson Engineers, Inc. "-Curt Lfne ■ Catch - Basin, Type 2, 48" Dia W bT St�a- Plan B -le, W /Metal Frame rate SD /r of Grate 20 Plan B�dJ 5 u Jt, 1 Top of 25.12 5 +5+5 18' Lt CIVIL ENGINEERS & LAND SURVEYORS N.909 ARCONNE ROAD SPOKANE, SA 99212 PH 976 -1722 3'x3" thick crete pod at culvert end, top of pad 2020.00 27" -Dia. R.0 P. Culvert - 142 LF ± C -1% S. to N I.E. 2021.50 (5) I.E. 2020.00"(N) from CB, 5 +56.70 18' Lt. of 4, to Conc. Pad @ Pond floor 5 10' Drainage Easement Building Setback Line 6 Co te.- Inset, Type 2, with `` Metal Frame & Grate, Type 2 Spokane County Standard Ste 5 +50, 18' Lt. of CL Top of Crate 2025.12, -'' o . ent dose` s 00M ri 0 -Dia. C.M am Conc. Inlet \ JULY 15, 1994 LOT 6 BLOCK 1 RIDGEMONT ESTATEORTH 3RD ADDITION GRAPH 0 e-fa 4 '.Ni EXPIRES 7117' 9s � ■ \ �Catch- e 2. 48" -WC 3T St c. d.. T �e _match Basin Type 2 Type / a. WC .' � Plan B-le, l/Metal frame rate 1101 �' sop x 6 Lf. G -3 ■ Std. Plan B -lb. Inside f4 2O1, p I.E. 2022.70 (West) \ \\ of Grote 2025.12, t�5 7-0, 18' Lt� - I.E. 2022.50 (East) / \ ■ CD -- ■ ■ \ • / ■ \ (IN FEET) 40 11 IIII 11 1111 Coro Line ti fntpson Engineers, Inc. ENCUEERS & LAND SURvE\ORS N.909 ARCONNE ROAD SPOKANE. WA 99212 PH 926 -1722 , 0 GRAPHIC S9ALE f61 FEE1) 0 ./ 10. //20 I Y6 1ik31 • - , a %. s• JULY 20, 1994 11, LOT BLOCK 2 RIDGEMONT ESTATES NORTH 3RD ADDITIO • • / Z / `1 // ' / / p / ./ , s o . ,, / j ` 4 0 0 /, de? ; -t 9r • • C / " ,94o impson Engineers, Inc. CML ENCItIEERS & LAND SURVEYORS N 909 ARGONNE ROAD SP0 ANE. WA 99212 PH 926 - 132 2 ' • • 0 Iz I I3' • 1 / 0 ./ • • 589'46'02 "E 125.00' • / / •' • \ / / 36 JULY 15, 1994 / LOT 5 BLOCK 2 / RIDGEMONT ESTATES NORTH 3RD ADDITION / • • • I EXPIRES 7117' 9S I" = 20' • GRAPHIC SCALE (IN FEET) 0 10 20 40 rr..,a.a 19.6 impsun 1 ineers, Inc. CIVIL ENGINEERS k LAN EYORS 11909 ARCONNE ROAI SPOKANE. WA 99212 P 1 926-$37.' / I 1 Ldl l 1 I REVIEW COMMENTS SPOKANE COUNTY DIVISION OF ENGINEERING & ROADS 1026 W BROADWAY, SPOKANE WA 99260 -0710 PHONE (509)456 -3600 FAX (509)324 -3478 4 REVIEW k: REVIEWER: Dean Franz. P.E. (Excluding revi of 6 ac Retention pond east of plat - will be reviewed separately) PROJECT #: P -1684B DATE: 20T lte -994 PROJECT NAME: Rideemont Estates North 3rd Add. 3 cut,. These comments are to be used in conjunction with the road and drainage plan redline markups, which are attached. Address all comments by revising the plans and drainage calculations, unless otherwise noted. Road and Drainage Plans Previous Comments Not adequately Addressed The R -value of 54, which was shown in the report you provided, does not justify the proposed structural pavement thicknesses. With 2" of asphalt pavement, at least 9" of crushed top course is needed. The plans show 6" of crushed top course. Revise. For the additional gravel for the maintenance drive, specify the type of material and minimum thickness. //Ca) Fence: The plans refer to WSDOT Standard Plan C -9. This standard plan is not a fence detail. Revise reference. :)A( ) Provide a 14' wide gate into the storm pond within Utility Lot 'B', accessed from the gravel drive. Specify the location and provide and reference a detail. 1 ) The plan view of the pond within Utility Lot 'B' lists a minimum berm elevation. However, the typical cross - section specifies to "match existing grade." During construction there may be a discrepancy between these two. Revise the typical cross - section detail to make it clear that the minimum berm elevation around the pond is to conform to what is also shown in the plan view. 14) Provide at typical cross - section of the maintenance road in relation to the existing drainage ditch, so the Contractor will know how to grade the road. Road and Drainage Plans New Comments Based Boon Newly Provided Information 1) Provide lot plans for all lots which will be encumbered by a drainage easement. If you need to know the specific format requirements for lot plans, please contact me. REVIEW COMMENTS Page 2 of 3 20 June 1994 REVIEW # 2 PROJECT # P -1684B PROJECT NAME Rideemont Estates North 3rd Add. Lot 5 of Block 2 is obviously not a buildable lot, and it is seriously doubtful that lot 6 is buildable. Revise lot layout to eliminate any lot which is unbuildable. Catch Basin at STA 5 +56.7 (LT): The plans call out a Type 3 CB, and refers to WSDOT Std. Plan B -lb. However, this standard plan does not match the catch basin type specified. Please address discrepancy. The pipe lengths, size and slope need to be specified from structure -to- structure. According to the layout shown, there should be two pipe sections, one 50 1.f., the second 142 1.f. The plans show only one pipe 192 1.f. long. Revise. For the storm inlet at STA 5 +50 (Lt), specify the type of metal grate. 6) Maintenance Requirements: Ownership and maintenance of the two drainage ponds associated with the project will need to be done privately, because the there have been no service fee system put in place. A homeowner's association, or other type administrative system, will need to be setup. specific requirements will be provided to you separately. Storm Drainage Calculations - Pond 3A (on - site) Only The pond will be privately maintained by a homeowner's association. Provide a written maintenance plan of the storm retention pond, which provides a list of maintenance work items to perform; and the needed frequency for each item of work. Submit to our office for review. 2) The calculations use a precipitation of 2.6 inches when considering the 100 -yr, 24hr storm event. According to the isopluvial maps on record at the County, a precipitation amount of 3.0 inches is appropriate for the area of the County which this site is located on. Revise the calculations for the 100 -yr storm event, or provide a justification for the use of 2.6 inches. �D3) Provide calculations checking the pipe capacity when inlet conditions control. It is recommended that your use the FHA publication "Hydraulic Charts for Selected Highway Culverts." . .i REVIEW COMMENTS Page 3 of 3 20 June 1994 REVIEW # 2 PROJECT # P -1684B P ROJECT NAME Rid¢mnont Estates North 3rd Add. �pc ` j d 4) Grate Inlet Calculations: There are several problems with the calculations provided. Please see chapter 4 of the Spokane County "Guidelines for Stormwater Management" which lists the design criteria. The calculations submitted are lacking in the following items: • The maximum water depth in the street gutter must allow for a 12' wide clear passage (i.e. 6' half - street) for traffic. Therefore for a 18' half - street width the maximum top width of stormwater in the gutter is 12'. This gives the maximum allowable water depth at the sump, Depth max. = 12'(0.0278) + 0.17' = 0.50'. • If the design water depth above the grate exceeds 0.4', the grate inlet no longer functions like a weir, but rather functions like an orifice. If the design depth exceeds 0.4', use an orifice equation to model grate inlet capacity. • The type of grate is not specified in the plan. The type of grate dictates the allowable grate capacity. • The grate inlet capacity must meet or exceed 2x the design flowrate, to allow for partial clogging. Revise the grate calculations to consider the design criteia described above. • SPOKANE COUNTY CALCULATION SHEET Description: Calc. by: Checked by: Notes: d }t . Date: Date: Project Na: p / a / Sheet / of OFFICE OF COUNTY ENGINEERS I no r or :ice I s f� i I I I I V CfcgaTioTt_.iC/1 UISIi'I.C/ 1 �- t p 3 , L I L J 8, II /-8 0 , — Sf,/ ; ■ i L _LioeuC-,AQ T a9 � ,i SvU ■ ■■ , e e,��a 1 { I 8 s L1 ■ - ■ ■■ 1 '' " a ■■ II Li 5 L/ , o. In 980 _ }(al Sd A, L J ■■ -■ P o,70/s ■ ■ ■ J _1 -) ki / 4 840„ - PI LI- L L 1 L_ ' ■■■■■ ■n■ ■ ■■ ■■■ r- ■ ■ P L__J L ; �■ ■■■�■■■ -■■■ - ■■ ■■ ■: -■ ■■ _ � I - _._ ■ ■■ ■■ [ 1� L 1 ■■ 1l ■■ ■■ ■ ■■ ■ ■ ■ ■- u • SPOKANE COUNTY CALCULATION SHEET Description: Calc. by: Checked by: Notes: d }t . Date: Date: Project Na: p / a / Sheet / of OFFICE OF COUNTY ENGINEERS I 94 1346 9410050526 MODIFIED EASEMENT AGREEMENT This Agreement is made and entered into by and between R d INC., a Washington Corporation, Alfons 8. Renz and Hilda E. Renz, husband and wife (hereinafter collectively referred to as "Renz ") and Spokane County, a political subdivision of the State of Washington (hereinafter referred to as "County "). • RECITALS 1. Renz and the County entered into a Storm Drainage Easement and Right-of-Way Agreement dated February 9. "270 and recorded under Spokane County Auditor's No. Af=; :40;5. 2. A previous draft of an Easement Agreement under Spokane County Auditor No. 9409200309. 3. Renz and the County desire to terminate the Easements referred to in paragraphs 1 and 2 above and concurrently_ substitute and replace them with this Agreement. NOW, THEREFORE, in consideration of mutual covenants and conditions contained wherein, Renz and the County agree as follows: 1. The Storm Drainage Easement and Right - of -way Agree=ent and the Easement Agreement referred to in Recital Paragraph and 2 above is hereby terminated and replaced in its entirety with this Modified Easement Agreement. 2. Concurrently with said termination, Renz does hereby convey to Spokane County and to the Ridgemont Estates North 3rd and 4th Additions Homeowners Association (hereinafter "Homeowners Association") an Easement over, under, upon and across the property described in Exhibit "A" attached hereto and SRS /9 -011 -1- VOL. 1656°16E1117 VERA CREST DRIVE NO. 2507 PARCEL NO. 45255.9065 P -1684 B and P -16840 wtaz -`corded h t E Tax atol (J 19 t ,�.. ; �rt►Trr1el. 94 1346 SRS /9409 -011 9410050526 C 0 P Y ORIGINAL Fll E OR RECORDED OCT 0 5 1994 MODIFIED EASEMENT AGREEMENT t.t.Jrai r hut)!IUrr SPOKANE COUNTY. WN This Agreement is made and entered into by and between R & T, INC., a Washington Corporation, Alfons B. Renz and Hilda E. Renz, husband and wife (hereinafter collectively referred to as "Rent ") and Spokane County, a political subdivision of the State of Washington (hereinafter referred to as "County "). RECITALS 1. Renz and the County entered into a Storm Drainage Easement and Right -of -Way Agreement dated February 9, 1978 and recorded under Spokane County Auditor's No. 8004140245. 2. A previous draft of an Easement Agreement was recorded under Spokane County Auditor No. 9409200309. 3. Renz and the County desire to terminate the Easements referred to in paragraphs 1 and 2 above and concurrently substitute and replace them with this Agreement. NOW, THEREFORE, in consideration of mutual covenants and conditions contained wherein, Renz and the County agree as follows: 1. The Storm Drainage Easement and Right -of -Way Agreement and the Easement Agreement referred to in Recital Paragraph 1 and 2 above is hereby terminated and replaced in its entirety with this Modified Easement Agreement. 2. Concurrently with said termination, Renz does hereby convey to Spokane County and to the Ridgemont Estates North 3rd and 4th Additions Homeowners Association (hereinafter "Homeowners Association ") an Easement over, under, upon and across the property described in Exhibit "A" attached hereto and -1- incorporated herein by this reference for the purpose of conveying and disposing of storm water and drainage run off originating on or flowing through property described in Exhibit "B" attached hereto and incorporated herein by this reference (hereinafter referred to as "Developed Property "), and the property located within Ridgemont Estates North 3rd and 4th Additions. 3. Notwithstanding the provisions of paragraph 2 above, it is specially understood and agreed that the drainage easement may receive the natural flow of water from undeveloped area within the drainage basin for this easement identified in that certain study performed by Simpson Engineers, Inc. in conjunction with Project Nos. P -1684B and P -1684C on file with the Spokane County Engineer. With the consent of Spokane County or at its request, the description of the Developed Property may be expanded to include newly platted or divided properties ( "additional properties ") if (a) the developer of such additional properties has entered into a written agreement with the entity responsible for operation, maintenance and repair of the drainage facilities pursuant to this agreement, (b) said agreement addresses payment of a pro rata share of the costs of operation, maintaining and repairing the facilities by the owner of such properties, in accordance with paragraph 5 below (c) said agreement has been approved as to form by the County and is fully executed and recorded before final plat approval, and (d) thirty days written notice has been provided by Spokane County to the owners of the property described in Exhibit "A" and to the entity responsible for operation and maintenance of the drainage facilities that such additional properties are being added to the Developed Property. 4. Renz agrees to install at its expense drainage facilities on the easement as described and in accordance with approved plans on file with the Spokane County Engineer's SRS /9409 -011 -2- Office. Upon completion of the drainage facilities, Renz shall submit to the County Engineer "as- constructed plans" stamped by a licensed professional engineer. Renz shall reimburse Spokane County for all costs, expenses and fees incurred by the County in approving the plans for and inspecting the drainage facilities. 5. The Homeowners Association shall be responsible for the operation, maintenance and repair of the drainage facilities located within the easement area, including but not limited tc maintaining a cover of dryland type grasses within the pond, keeping any ditches open and clean, keeping the drywells free of debris and silt, and routinely inspecting the drainage facilities. Optional shrubbery and /or trees may be planted within the drainage easement provided there is no obstruction of flow or storm water percolation. It is specifically understood and agreed, however, that in the event additional properties are added to the description of the Developed Property, the owners of said additional properties shall be required to reimburse the Homeowners Association for the cost of operation, maintenance and repair of said facilities on a pro rata basis. The pro rata annual reimbursement costs for such additional properties shall be determined as follows: SRS /9409 -011 Pro rata share = annual maintenance cost x F. F = number of lots added to the Developed Property divided by (number of lots added to Developed Property + number of lots in Ridgemont Estates North 3rd and 4th Addition). Spokane County may, at its option and at any time hereafter, assume responsibility for operation, maintenance and repair of the drainage facilities and may levy service charges on lots within Ridgemont Estates North 3rd and 4th Additions, and on any additional properties added to the Developed Property, for the pro rata share costs of such operation, determined as follows: -3- SRS /9409 -011 Pro rata share for each lot = annual maintenance cost divided by (number of lots added to Developed Property + number of lots in Ridgemont Estates North 3rd and 4th Addition). Such charges shall be collected and enforced by Spokane County in the manner provided by County resolution or ordinance for the levying and enforcement of storm water service charges by Spokane County. It is specifically understood and agreed that lots or owners of lots in Ridgemont Estates, Ridgemont Estates No. 2 and Ridgemont Estates No. 3, although included in the definition of "Developed Property ", are not liable for reimbursement of costs or for service charges levied for maintenance, operation and repair of the drainage facilities as provided for in this agreement. This limitation shall not be construed to otherwise limit the statutory authority of Spokane County to levy rates, charges or assessments on such lots or the other Developed Property if the owners of such property receive or will receive services or benefits from additional storm water control facilities installed by the County or from additional storm water services provided by the County. 8. If the Homeowners Association fails to maintain and operate the drainage facilities in good working order, Spokane County may give written notice of such failure to the Homeowners Association and if such failure is not corrected within the period indicated in said notice, Spokane County shall have the right to correct said maintenance failure or compel such failure to be corrected at the expense of the Homeowners Association. -4- 9. If the facilities are damaged due to the negligence or intentional act of any party to this Agreement, that party shall be responsible for the cost of repairing such damage and for indemnifying the other parties of this Agreement against all damages, costs, suits, claims and expenses arising out of or caused by such negligence or intentional act. 10. Renz and the Homeowners Association hereby agree to indemnify Spokane County for all damages, including inverse condemnation, that any property, real or personal, caused by resulting from the deficient construction of the drainage facilities or the failure of Homeowners Association to properly maintain and operate said facilities. 11. The owner of the property described on Exhibit "A" shall timely pay and keep current all taxes and assessments levied against such property, and shall keep such property free of all liens and security interests. 12. The easements granted herein shall respectively run with the property described in Exhibit "A" and "B" hereto and the provisions of this Agreement shall be binding upon and inhere to the benefit of the successors and interest of the parties to this Agreement. 13. Any action that law, suit and equity or judicial proceeding for the enforcement of this Agreement or any provision hereto shall be instituted only in a court of competent jurisdiction within Spokane County, Washington. SRS /9409 -011 -5- 14. This Agreement is complete and in total agreement of the parties and may not be modified except through a written Agreement executed with the same formalities as the present Agreement. 15. This Agreement replaces and supersedes an earlier Easement Agreement recorded September 20, 1994, under Spokane County Auditor's File No. 9409200309. ALF NS B. RENZ, by Day i W. Renz Steve sson, Chairman his Attorney -in- fact" /Y .. .Z( 17 H I LDA E. I 1V , by Davi.q/ W. Renz her Attorney -in -fact R & T, INC. By Its SRS /9409 -011 -6- BOARD OF COUNTY COMMISSIONERS OF SPOKANE COUNTY, WASHINGTON "44 Patricia A Mummey ATTEST: W - IAM E. DONAHUE Clerk g# t Board sanne ontague eputy Clerk STATE OF WASHINGTON ) ss. County of Spokane I certify that I know or have satisfactory evidence that DAVID W. RENZ signed this instrument as attorney -in -fact of ALFONS B. RENZ, and acknowledged it to be the free and voluntary act of said ALFONS B. RENZ, for the uses and purposes mentioned in the instrument, and on oath stated that the power of attorney authorizing the execution of this instrument has not been revoked, and thaVaid ALFONS B. RENZ is now living. DATED:S9 / 2k , 199 ,., NOTARY.? a( i n nd or the S a e of j hington, rdsiding at Spokane My appointment expires: / - _T'- - /. STATE OF WASHINGTON ) County of Spokane ) I certify that I know or have satisfactory evidence that DAVID W. RENZ signed this instrument as attorney -in -fact of HILDA E. RENZ, and acknowledged it to be the free and voluntary act of said HILDA E. RENZ, for the uses and purposes mentioned in the instrument, and on oath stated that the power of attorney authorizing the execution of this instrument has not been revoked, and that said HILDA E. RENZ is now living. DATED: ��." j ) t) , 1 SRS /9409 -011 s s. --NOTXRY A4C yind for h e State - Washington, residing at Spokane My appointment expires: -7- STATE OF WASHINGTON ) ss. County of Spokane ) I cer ify that 1 know or have satisfactory evidence that Sz`eye , as ? is the person who appeared before me, and said person acknowledged that he signed this instrument, on oath stated that he was authorized to e the instrument and acknowledged it, as thee it e7Zet 09 (Om €S of SPOKANE COUNTY, to be the free and voluntary act of' such party for the uses and purposes mentioned in the instrument. DATED: , 1994. STATE OF WASHINGTON ) ) ss. County of Spokane I c- .. t h a t I know or have satisfactory evidence that ,, A • is the person who appeared before me, and aid pe .rra a.4rowl6 that he signe his instrument, on oath stated le at he was authorized to ,e e e the instrument and acknowledged it, as the % _4(11, of R & T, INC., to be the free and voluntar act ot of such party for the uses and purposes mentioned(n the instrument. DATED:�,v /,-.2 1994. ' ` / � iRY 1 AiC and t e 'tate of Washington, residing at Spokane My appointment expires:. - - _?, - 2�, SRS /9409 -011 - . 1--&- NAki PUBLIC in and to ,e State of W shington, residing at Spokane My appointment expires: ( -Y"-V7 94 1316 EXHIBIT "A" (Drainage Easement) LEGAL DESCRIPTION (Assessor's Parcel No. 45255.9065): A portion of the Northeast quarter of the Northwest quarter and the Northwest quarter of the Northeast quarter of Section 25, Township 25 North, Range 44 East, W.M., being more particularly described as follows: BEGIN at a point that is South 89'16'42" East, a distance of 626.35 feet from the North quarter corner of said Section 25, said point being common to the North boundary of said Section 25 and the West boundary of Leo N. Cashatt and others, as established by a survey performed by Adams Engineering in 1976; thence along said Cashatt West boundary, the following two (2) 'courses, South 30'08'12" East, a distance of 152.25 fret; thence South 50'22'25" East, a distance of 26.00 feet; thence South 52'30'00" West a distance of 135.07 feet; thence South 30'22'00" East, a distance of 119.42 feet; thence South 56'26'16" West, a distance of 40.06 feet; thence North 30'22'00" West, a distance of 116.74 feet; thence South 52'38'00" West, a distance of 307.71 feet; thence South 50'22'00" East, a distance of 151.82 feet; thence South 39'26'16" West, a distance of 40.00 feet; thence North 50'22'00" Wcst, a distance of 161.19 feet; thence South 45 0 39 1 33 ".West, a distance of 349.84 feet: thence South 50 East, a distance of 199.11 feet; thence South 39'26'16" West, a distance of 40.00 feet; thence North 50°33'44" West, a distance of 203.47 feet; thence South 45'39'33" West. a distance of 84.90 feet; thence South 76 °35'00" West, a distance of 144.00 feet; thence South 07'35'00" West, a distance of 89.92 feet t.o the East line of the Future Plat of Ridoc_•:nant Estates North 3rc'. Addition; thence North 02'51'52" West, along said East line. a distance of 215.89 feet to a poist on a nontangent curve concave to the west with a radius of 50.00 feet and a radial bearing of South 44'22'04" I:.,.st, said point bei:.c on the Easterly line of this Future Plst. of Ridcemont Estates North 4th, the next 2 courses alp ng said Easterly line; thence Northeasterly, Northerly and Northwesterly through .:+ central angle of 119 °08'01 ", an arc distance of 103.96 feet; thence North 16'29'55" East, radial to said curve, a distance of 28.10 feet; thence North 56'18'15" Fast, a distar:e of 248.44 feet; thence North 32°00'54" East, a distance of 244.68 feet; thence North 76°30'08" East, a distance of 154.57 feet; thence North 54 °00'44" East, a distance of 186.55 feet;' thence North 62'14'59" East. a distance of 149.00 feet; thrr+ce North 26'59'32" East, a distance of 29.57 feet to the ;oath right of way (R /W) of 16th Avenue and a point on a curve concave to the Northwest with a radius of 495.72 feet and a radial bearing of South 16'02'48" East, thence Northeasterly along said South R /W, through .a central anal, of 3'15'02 ", an arc distance of 28.12 feet; thence South 89 °G9'28" East, 25.38 feet to the Point of Beginning; situate in the County of Spokane, State of Washington; page 1 of 2 n Exhibit "A" --4 -, I / 45255.V065 ` , i. +.. ,ar•.itr. ...., rl+t" — — L--. - _ r / / 1 • , 1 I • I 1 .- y • j I 1 . \` — 1 1 1 , 1 ■ , 1 1 . 1 1 1 / \ i 1 ' .- _ - ,. —_ ..../.._ .. • • ` l • ' 1 ' 1 1 ' 5 1 / t I t I 1 I 1 / r • .1 / \ t 1 1 I 1 r ' • • ‘ / -TIT ,-,---- qq ((�� pp �� „' / `t i b .► \ I'J 1 I I \ g \ 21 .,. a u •- \ r t 94 1346 •1 ' r ' • 1 1 1 ; I ` / I....� ..._.. I r ) /1 / / I \ . .\ • 1 ' ` 4 I I I `..,c.. I v \ • / • \ 1 I 1 / - • 1 • \ \./ N 1- • � •.A f !i u ' ■ / •- • • . /r 1 • / • • ,• / • \ \ ' / / .\ \ , , ,♦ • ` • / • • • \ / r • \ ...• 1 • •• • I 3Q `. :j \. I • • ^, u;c;40r 1 • ,,,....”.$).. ....-1--- _�..- �---.. _-. --- .J \ .. \ r 1 • w / I / _ I / \\.\ . .„--)--- .•....,,, , •••••■ .. / N pBCte 2 Of .' 1 I • • • i 94 1346 EXHIBIT "B" Ridgemont Estates, Ridgemont Estates No. 2 and Ridgemont Estates No. 3 No. 94 1346 BEFORE THE BOARD OF COUNTY COMMISSIONERS OF SPOKANE COUNTY, WASHINGTON IN THE MATTER OF EXECUTING A DRAINAGE EASEMENT AGREEMENT ) R E S O L U T I O N REGARDING RIDGEMONT ESTATES ) NORTH 3RD AND 4TH ADDITIONS ) WHEREAS, pursuant to RCW 36.32.120(6), the Board of County Commissioners of Spokane County has the care of County property and the management of County funds and business; and WHEREAS, R & T, Inc., and Alfons B. Renz and Hilda Renz, husband and wife (all hereinafter referred to as "Developers ") are the owners of property being finally platted into the Ridgemont North 3rd and 4th Additions; and WHEREAS, Developers also own a parcel of land (Assessor's Parcel No. 45255.9065) currently burdened by a drainage easement conveyed to Spokane County in 1978, under County Auditor's No. 9409200309, and serving the plat of Ridgemont Estates, Ridgemont Estates No. 2 and Ridgemont Estates No. 3; and WHEREAS, Developers are in the process of finally platting Ridgemont Estates North 3rd and 4th Additions and are desirous of having such plats drain runoff to Assessor's Parcel No. 45255.9065; and WHEREAS, as a condition of development, Developers are required to submit plans to County Engineering for drainage facilities to be constructed by Developers on Assessor's Parcel No. 45255.9065, and to provide a plan for servicing of such facilities; and WHEREAS, Developers are desirous of having the Ridgemont North 3rd and 4th Additions Homeowners Association operate and maintain such drainage facilities; and WHEREAS, the County and Developers are willing to allow other properties lying within the drainage basin which drains to Assessor's Parcel No. 45255.9065 drain runoff to such parcel following their development, provided the owners of such developed properties share in the cost of maintaining and operating the drainage facilities installed on such parcel; and WHEREAS, the Spokane County Engineer has negotiated an agreement with Developers entitled "Modified Drainage Easement Agreement "; NOW, THEREFORE, BE IT RESOLVED that a majority of the Board of County Commissioners, or its Chairman, be authorized to execute, that certain document entitled "Modified Drainage Easement Agreement "; which agreement (1) authorizes Spokane County to enter into an agreement with R & T, Inc., and Alfons B. Renz and Hilda Renz, husband and wife ( "Developers "), the developers of Ridgemont Estates North 3rd and 4th Additions and owners of Assessor's Parcel No. 45255.9065, (2) provides for termination of a Storm Drainage Easement and Right -of -Way Agreement recorded under County Auditor's No. 9409200309, regarding Assessor's Parcel No. 45255.9065, (3) conveys a new drainage easement in Assessor's Parcel No. 45255.9065 to Spokane County, (4) requires Developers to install certain drainage facilities within the drainage easement on Assessor's Parcel No. 45255.9065, (5) requires the Ridgemont North 3rd and 4th Additions Homeowners Association to operate and maintain such drainage facilities, (6) authorizes Spokane County upon its request to take over maintenance and operation of such facilities from said homeowners association and levy charges for the 'costs of such services, and (7) authorizes other developments in the area to drain runoff to the drainage easement on Assessor's Parcel No. 45255.9065, but requires the owner of lots in such developments to RECEIVED SEP 2 81994 SPOKANE COUNTY ENGINEER SRS /9409 -011 MODIFIED EASEMENT AGREEMENT -1- This Agreement is made and entered into by and between R & T, INC., a Washington Corporation, Alfons B. Renz and Hilda E. Renz, husband and wife (hereinafter collectively referred to as "Renz ") and Spokane County, a political subdivision of the State of Washington (hereinafter referred to as "County "). RECITALS 1. Renz and the County entered into a Storm Drainage Easement and Right -of -Way Agreement dated February 9, 1978 and recorded under Spokane County Auditor's No. 8004140245. 2. A previous draft of an Easement Agreement was recorded under Spokane County Auditor No. 9409200309. 3. Renz and the County desire to terminate the Easements referred to in paragraphs 1 and 2 above and concurrently substitute and replace them with this Agreement. NOW, THEREFORE, in consideration of mutual covenants and conditions contained wherein, Renz and the County agree as follows: 1. The Storm Drainage Easement and Right -of -Way Agreement and the Easement Agreement referred to in Recital Paragraph 1 and 2 above is hereby terminated and replaced in its entirety with this Modified Easement Agreement. 2. Concurrently with said termination, Renz does hereby convey to Spokane County and to the Ridgemont Estates North 3rd and 4th Additions Homeowners Association (hereinafter "Homeowners Association ") an Easement over, under, upon and across the property described in Exhibit "A" attached hereto and incorporated herein by this reference for the purpose of conveying and disposing of storm water and drainage run off originating on or flowing through property described in Exhibit "B" attached hereto and incorporated herein by this reference (hereinafter referred to as "Developed Property "), and the property located within Ridgemont Estates North 3rd and 4th Additions. 3. Notwithstanding the provisions of paragraph 2 above, it is specially understood and agreed that the drainage easement may receive the natural flow of water from undeveloped area within the drainage basin for this easement identified in that certain study performed by Simpson Engineers, Inc. in conjunction with Project Nos. P -1684B and P -1684C on file with the Spokane County Engineer. With the consent of Spokane County or at its request, the description of the Developed Property may be expanded to include newly platted or divided properties ( "additional properties ") if (a) the developer of such additional properties has entered into a written agreement with the entity responsible for operation, maintenance and repair of the drainage facilities pursuant to this agreement, (b) said agreement addresses payment of a pro rata share of the costs of operation, maintaining and repairing the facilities by the owner of such properties, in accordance with paragraph 5 below (c) said agreement has been approved as to form by the County and is fully executed and recorded before final plat approval, and (d) thirty days written notice has been provided by Spokane County to the owners of the property described in Exhibit "A" and to the entity responsible for operation and maintenance of the drainage facilities that such additional properties are being added to the Developed Property. 4. Renz agrees to install at its expense drainage facilities on the easement as described and in accordance with approved plans on file with the Spokane County Engineer's SRS /9409 -011 -2- Office. Upon completion of the drainage facilities, Renz shall submit to the County Engineer "as- constructed plans" stamped by a licensed professional engineer. Renz shall reimburse Spokane County for all costs, expenses and fees incurred by the County in approving the plans for and inspecting the drainage facilities. 5. The Homeowners Association shall be responsible for the operation, maintenance and repair of the drainage facilities located within the easement area, including but not limited to maintaining a cover of dryland type grasses within the pond, keeping any ditches open and clean, keeping the drywells free of debris and silt, and routinely inspecting the drainage facilities. Optional shrubbery and /or trees may be planted within the drainage easement provided there is no obstruction of flow or storm water percolation. It is specifically understood and agreed, however, that in the event additional properties are added to the description of the Developed Property, the owners of said additional properties shall be required to reimburse the Homeowners Association for the cost of operation, maintenance and repair of said facilities on a pro rata basis. The pro rata annual reimbursement costs for such additional properties shall be determined as follows: Pro rata share = annual maintenance cost x F. F = number of lots added to the Developed Property divided by (number of lots added to Developed Property + number of lots in Ridgemont Estates North 3rd and 4th Addition). Spokane County may, at its option and at any time hereafter, assume responsibility for operation, maintenance and repair of the drainage facilities and may levy service charges on lots within Ridgemont Estates North 3rd and 4th Additions, and on any additional properties added to the Developed Property, for the pro rata share costs of such operation, determined as follows: SRS /9409 -011 -3- SRS /9409 -011 Pro rata share for each lot = annual maintenance cost divided by (number of lots added to Developed Property + number of lots in Ridgemont Estates North 3rd and 4th Addition). Such charges shall be collected and enforced by Spokane County in the manner provided by County resolution or ordinance for the levying and enforcement of storm water service charges by Spokane County. It is specifically understood and agreed that lots or owners of lots in Ridgemont Estates, Ridgemont Estates No. 2 and Ridgemont Estates No. 3, although included in the definition of "Developed Property ", are not liable for reimbursement of costs or for service charges levied for maintenance, operation and repair of the drainage facilities as provided for in this agreement. This limitation shall not be construed to otherwise limit the statutory authority of Spokane County to levy rates, charges or assessments on such lots or the other Developed Property -if the owners of such property receive or will receive services or benefits from additional storm water control facilities installed by the County or from additional storm water services provided by the County. 8. If the Homeowners Association fails to maintain and operate the drainage facilities in good working order, Spokane County may give written notice of such failure to the Homeowners Association and if such failure is not corrected within the period indicated in said notice, Spokane County shall have the right to correct said maintenance failure or compel such failure to be corrected at the expense of the Homeowners Association. -4- 9. I£ the facilities are damaged due to the negligence or intentional act of any party to this Agreement, that party shall be responsible for the cost of repairing such damage and for indemnifying the other parties of this Agreement against all damages, costs, suits, claims and expenses arising out of or caused by such negligence or intentional act. 10. Renz and the Homeowners Association hereby agree to indemnify Spokane County for all damages, including inverse condemnation, that any property, real or personal, caused by resulting from the deficient construction of the drainage facilities or the failure of Homeowners Association to properly maintain and operate said facilities. 11. The owner of the property described on Exhibit "A" shall timely pay and keep current all taxes and assessments levied against such property, and shall keep such property free of all liens and security interests. 12. The easements granted herein shall respectively run with the property described in Exhibit "A" and "B" hereto and the provisions of this Agreement shall be binding upon and inhere to the benefit of the successors and interest of the parties to this Agreement. 13. Any action that law, suit and equity or judicial proceeding for the enforcement of this Agreement or any provision hereto shall be instituted only in a court of competent jurisdiction within Spokane County, Washington. SRS /9409 -011 -5- 14. This Agreement is complete and in total agreement of the parties and may not be modified except through a written Agreement executed with the same formalities as the present Agreement. 15. This Agreement replaces and supersedes an earlier Easement Agreement recorded September 20, 1994, under Spokane County Auditor's File No. 9409200309. ALFONS B. RENZ, by Day; W. Renz Steven Hasson, Chairman his A rney- in -fac / HILDA E. RENZ, by David W. Renz D.E. Chilberg her Attorney -in -fact R & T, INC. SRS /9409 -011 BOARD OF COUNTY COMMISSIONERS OF SPOKANE COUNTY, WASHINGTON -6- Patricia A. Mummey ATTEST: WILLIAM E. DONAHUE Clerk of the Board By Rosanne Montague Deputy Clerk STATE OF WASHINGTON ) ss. County of Spokane ) I certify that I know or have satisfactory evidence that DAVID W. RENZ signed this instrument as attorney -in -fact of ALFONS B. RENZ, and acknowledged it to be the free and voluntary act of said ALFONS B. RENZ, for the uses and purposes mentioned in the instrument, and on oath stated that the power of attorney authorizing the execution of this instrument has not been revoked, and tha aid ALFONS B. RENZ is now living. DATED (� ) 2n i' r rs r 1994. /, NOTART2PUBLIC in and the State of shington, r iding at Spokane Mf appointment expires: / STATE OF WASHINGTON ) ss. County of Spokane ) I certify that I know or have satisfactory evidence. that DAVID W. RENZ signed this instrument as attorney -in -fact of HILDA E. RENZ, and acknowledged it to be the free and voluntary act of said HILDA E. RENZ, for the uses and purposes mentioned in the instrument, and on oath stated that the power of attorney authorizing the execution of this instrument has not been revoked, and that said HILDA E. RENZ is now living. DATED: Z 2 �7 — NOTEY PUBLIC i'n --and for the State of - Washington, residing at Spokane My appointment expires: j SRS /9409 -011 -.7- • STATE OF WASHINGTON ) ss. County of Spokane ) I certify that I know or have satisfactory evidence that is the person who appeared before me, and said person acknowledged that he signed this instrument, on oath stated that he was authorized to execute the instrument and acknowledged it, as the of SPOKANE COUNTY, to be the free and voluntary act of such party for the uses and purposes mentioned in the instrument. DATED: , 1994. STATE OF WASHINGTON ) . ss. County of Spokane purposes mentioned the instrument. DATED: ' SRS /9409 -011 7 NOTARY PUBLIC in and for the State of Washington, residing at Spokane My appointment expires: I c -. tha I know or have satisfactory evidence that •• i .a - , is the person who appeared before me, and aid per 4T a.4Aow16dged that he signer• his instrument, on oath stated/ at he was authors ed to e e e the instrument and acknowledged it, as the f �J/,i�/7 be the free and voluntary act of such party for the uses and -8- , (1994. / N ARY PUBLIC Liniand`fo'r "the State �' of Washington, residing at Spokane My appointment expires:/ -- _J.0 - -"; of R & T, INC., to EXHIBIT "A" LEGAL DESCRIPTION (Assessor's Parcel No. 45255.90651: A portion of the Northeast quarter of the Northwest quarter and the Northwest quarter of the Northeast quarter of Section 25, Range 25 North, Range 44 East, W.N.., being more particularly described as follows: A drainage pond retention site easement over that portion of the Northeast quarter of the Northwest quarter and the Northwest quarter of the Northeast quarter of Section 25. Township 25 North, Range 44 East, W.M., being more particularly described as follows: BEGIN at. a point that is South 89 °16'42" East, a distance of 626.35 feet from the North quarter corner of said section 25, said point being common to the North boundary of said Section 25 and the West boundary of i.r,o N. Cashatt and others, as established be a survey performed by .dams' Engineering in 1976; thence along Said Cashatt West boundary, the following two (2) courses, South 30 °08'12" East, a distance cf 152.25 feet; thence South 50 °22'25" East. a distance of 26.00 feet; thence South 52 °30'00" West a distance of 135.07 feet; thence South 30 °22'00" East, a distance of 119.42 feet; thence South 56 °26'16" West, a distance of 40.06 feet; thence North 30 °22'00" West, a distance of 116.74 feet; thence South 52 °38'00" West, a distance of 307.71 feet; thence South 50 °22'00" East, a distance of 151.82 feet; thence South 39 °26'15" West, a distance of 40.00 feet; thence North 50 °2 West, a distance of 161.19 feet: thence South 45 °39'33" West, a distance of 349.64 feet: thence South 50 °33'44" East, a distance of 199.11 feet; thence South 39 °26'16" West, - distance of 40.00 feet; thence North 50 °33'44" West, a distance of 103.47 feet; thence South 45 °39'33" :nest, a distance of 84.90 feet; thence South 76 °35'00" West, a distance of 144.00 .feet, thence South 07 °35'00' West, a distance of 39.92 feet to the East line of the Future Plat of Ridaemont Estates North 3rd .Addition; thence North 02 °51.'52" West. along said East line, a distance of 215.89 feet to a point on a nantangent curve concave to the :vest with , radius of 50.00 feet and a radial bearing_ of South 44 ° East, said point being on the Easterly line of the Future P1. ;. Of Ridgemont Estates North 4th, the next 2 courses along said Easter;'_: line; thence Ncrtheasterlv, Northerly and Northwesterly through .a central angle of 119cogieFi, an are distance of 103.96 feet; thence North 16 °29'53" East, radial to said curve, a distance of 28.10 feet; thence North 56 °18'15" East, a distande of 248.44 feet; thence North 32'00'54" East, a distance of 244.68 feet; thence Nort.h 76 °30'08" East, a distance of 154.57 feet; thence North 54 °00'44" East, a distance of 166.55 feet; thence North 62 °14'59" East, a distance of 149.00 fret; thence Nort;i 26 °59'32" East, a distance of 29.57 feet to the South richt of way (R/W) of 16th Avenue and a point on a curve concave to the Northwest with a radius of 495.72 feet and a radial bearing of South 16 °02'48' East, thence Northeasterly- along said South t central angle of 3 °15'02" an arc distance of 28.12 feet, thence South 89 ° 09'28" East, 25.38 feet to the Point of Beginning; Situate in the County of Spokane, State of Washington; page 1 of • 11 i / 1 J • • • • • • x fits **I1*** ***** y }.. r r f+r'k rr:lyrrr♦ "� Exhibit "A" '••_L, I '45255. y055 '*A••4 •lrtrrrr.rrwa'...ra._...��. •r.w.\/t„�` / t 1 — _ 1 mi l � `` ; r / t ' 't 1 r r r ter ''. . . � r " \ II 1 • � ' • ` \,, 1. 1 1 r I • / \ • 1 / Y - 1 ,\ \ 1 1 1 \1 1 �__•- tl i / 1 1 1 I /e I / // A 1 \ ‘\ \ 1 1 1 ----- --- — - —"` — ` = JY , ' • • , . \ \' • }�1n °�2e \'/' •./ n I y �� , i . ' . ��%n \ / V \ ` '. /I; , / ` .< // / '\ \ T • I , 8 • \` • / ' • / N.N \ pace 2 of :. L ■ es EXHIBIT "B" Ridgemont Estates, Ridgemont Estates No. 2 and Ridgemont Estates No. 3 FROt1:SPOK CNTY CIUIL ATTY. TO: 509 3243478 SEP 27. 1994 11:39RM P.01 • 1 NATURE SAVER" FAX MEMO 01616 Iw1B y' V; p a // from , K y Ey IGOIDCD\. 2..( Co. feat 4.c...•• �Y DliDne 1 I mien or • Fug Fax/ , �• Stanley R. Schultz Attorney at Law Witherspoon, Kelley, Davenport & Toole 1160 U.$. Bank Building 422 West Riverside Spokane, WA 99201 -03 Re: Drainage Easement Agreement for Ridgemont Estates Dear Stan: our fax machine wasn't working properly yesterday and your fax came eat the following revision thereto, to in rather piecemeal. However, I was able to decipher:your new earagraph. I would sugg our language: eliminate some possible ambiguities in y "It is specifically understood and agreed that the lots or owners of lots in Ridgemont Estates, Ridgemont Estates No. 2 and ve Ridgemont No. 3, alt liable liab eedfor reimbursement of "Developed Prorer ercy ", eration Costs or for service charges levied for �iYOVidedeforpin this and repair of the drainage facilities as p rr to said easement. agreement, because the owners of such lots as developed have �._ farina riahrQ to dr i surface MS of ot sa id easement. This or 4,411.- TIP Co}}ntV to levy rates, m t the stasse a '• other charges or assessments on such loT�e� p L ?` �r will receive Property it the owners of such lot water receive service's ne facili installed by or the County or, from additional et9rm water services —provided by the County.' September 27', 1994 See, ;for authority, RCW 36.89.090 and RCW 36.89.110. / r vie Qv � vy L v FROM :SPOK CNTY CIVIL RTTY. cc Dean Franz TO: 509 3243478 SEP 27, 1994 11 :40RM P.02 Please fax me a copy of the entire agreement once we have resolved the above language. Very truly yours, Michael C. Dempsey Deputy Prosecuting Attorney . FROM :SPOK CNTY CIUIL RTTY. S 'P O K A N F_ DONALD C. IIROCKETT PROSECUTING ATTORNEY Please FAX to: I.) Criminal Division Crinsy -City Public Safely Buildbnb W. 1100 Mallon Avenue . Sp.rtam, WA 99260.0270 FAX Phone No: ( ) ,T 24 — 'JY7e Civil Division W. 1115 Broadway Spokane, WA 99260.0270 (509) 456.5764 SCAN 272.5764 TO: 509 3243478 SEP 27, 1994 10 :41RM P.01 OFFICE OF PROSECUTING ATTORNEY 9- 2. ? - C From: MICHAEL C. DEMPSEY Deputy Prosecuting Attorney, Spokane County Prosecuting Attorney's Office Telephone No.: (509), 456 -5764 FAX Phone No.: (509) 456 -3672 Pages 1 through 7 including cover page. If there are any questions regarding the message sent, please contact Donna, Civil Department, Prosecuting Attorney's Office, 456- 5764.' O U N T Ate: AR • e .% .4- , -1 .e. Vs■Il✓ NOTICE: The information contained in this transmission is privileged and confidential,: It is intended for the use the individual or entity named above. If the reader of this message ie not the intended addressee, the reader is hereby notified that any consideration,l dissemination or duplication of this communication is strictly prohibited. If the addressee has received this communication in error, please return to the above address, by mail and notify this office immediately by telephone. Thank you. WARNING: Most Fax machines produce copies on thermal paper. The image produced is highly unstable and will deteriorate significantly in a few years. This record should be copied on a plain paper copier prior to filing as a record. County - City Public So wilding W. 1100 Mal Avenue Spokane A 99260 -0270 (509) 62 SCAN 272.3662 JAMES P. EMACIO Chkl larpuy STEPHEN R. MATnt ws Chkr Cominal Deputy Senior nomeys Ronald P. Arklll, Robert B. Binger Jennifer A. Bohareki MIChMI C. Dempsey John F. Drkmll D. Clinton Franck Carald A. Gt. Kevin M. Karam lames R. Sweclr--r Patricia A, Thompson Deputies Demrnr W. Allen Sarah A. Miner Mary Ann Brady Jack T. Brooks Darken A. Chovan.Andeswn Frank Chasid% Trety 5. Collins Carmel* A. Conroy PAW C. Cornelius Dawn C. Cone, Carol 0. DAVIS Dunne C. Haughtily John Grasso Edward D.11ny Arthur K. 1tayashl Mary M. /la n nun Sandra L.lohnsion Carlin M. Jude Nell H. Katb,s Debby J. Kurbini Mark A. Laimingrr Stamina Laimnna Mark B. Lindsey Camlyn C. Lom hlan Andrew J. Melts Michell. A. M,ikr David Q X �A RfWX Annelle 5. Plese William II Reeve. Martin D. Rollin. Elizabeth L. SChnedcl Michelle A. Solimky Lary D, 5u(nmetb Sic. en J. Tueker 5lanky J waltz 0 0 0 I Family Law lkpanmens Fraud /Unigs Ullil Juv.-nilr Department , W. 601 Mallon Avenue N.721 Jelferann W. 1208 Mallon Avenue Spokane, WA 99201 Spokane. WA 99260 0270 Spokane. WA 90260.0270 (509) 458.2486 SCAN 272.2486 (509) 450.6416 SCAN 272 -6416 . (509) 456.6046 SCAN 272.6046 FROM:SPOK CNTY CIUIL ATTY. TO: 509 3243479 SEP 27, 1994 10:42RM P.02 Michael C. Dempe'.ey Deputy Prosecuting Attorney 5-� c' d's !' ✓ o u is a - 9'v«� /Vl i `�' U vi Q cam- O ._ 9/a7194r cg X") oar Stanley R. Schultz Attorney at Law Witherspoon, Kelley, Davenport & Toole 1100 U.S. Bank Building : 422 west Riverside Spokane, WA 99201 -0390 Re: Drainage Easement Agreement for Ridgemont Estates Dear Stan: Our fax machine wasn't working properly yesterday and your fax came in rather piecemeal. However, I was able to decipher your new paragraph. I would suggest the following revision thereto, to eliminate some possible ambiguities in your language: Ei%f "It is spec} - fically understood and agreed that the lots or owners of loth in Ridgemont Estates, Ridgemont Estates No. 2 and Ridgemont No. 3, although included in the definition of "Developed Property ",. are not liable for reimbursement of costs or for service charges levied for maintenance, operation and repair of the drainage facilities as provided for in this agreements tattoo the oc.r— .,E lcar `` pxe aOZc ..Xn.m .-,.h.. Ia....; 4' , ..1, is Please: �y fax me copy of the entire a once we have resolved the above language. Very truly yours., September 27, 1994 FROM:SPOK CNTY CIUIL ATTY. TO: 509 3243478 SEP 27, 1994 10 :42RM P.03 cc Dean Franz FROM:000NTY CIUIL ATTY. Please FAX to: Zeal / 47-13 1, 2. Cri:uiu 11 Itivision Cr unty.('iry Public Salely Building TO: 509 3243478 FAX Phone No: ( ) 72 DoNALo C. BROCKETT OI -FICE OF PROSECUI1NC Al IORNET PRO$IX:UPINC ATTORNEY 9- 22 - 'S/ From: MICHAEL C. DEMPSEY Deputy Prosecuting Attorney, Spokane County Prosecuting Attorney's Office Telephone No.: (509) 456 -5764 FAX Phone No.: (509) 456 -3672 c Pages 1 through /0 , including cover page. 4 re i 41St Y5 .l . f. 4.. / / -. - r e, 1.1 A. Af /✓ c vet. ccod e ray o f fl h r lt+ If there are any questions regarding the message sent, please contact Donna, Civil Department, Prosecuting Attorney's Office, 456 -5764. NOTICE: The information contained in this transmission is privileged and confidential. It is intended for the use of the individual or entity named above. If the reader of this message is not the intended addressee, the reader is hereby notified that any consideration, dissemination or duplication of this communication is strictly prohibited. If the addressee has received this communication in error, please return to the above address by mail and notify this office immediately by telephone. Thank you. WARNING: Most Fax machines produce copies on thermal paper. The image produced is highly unstable and will deteriorate significantly in a few years. This record should be copied on a plain paper copier prior to filing as a record. Cwil UI''.nm W, 111:• ILuadway ICtmiiy IA* P riftmein W 601 Mello, 4venlc SEP 23. 1994 11:05AM 4114 P.01 V LI N 'f Y o- e r . a n-o . 4 hind/1)11V Unit N. in Itffe,s'co County - City Public Building W. 1100 M. n Avenue Spok A 99260 -0270 (509) 3662 SCAN 272 -3662 JAMES P. R■ACIO Chin( Ikp.ny STEPHEN R. MATrHbW c Chief CrIMnnl Deputy Senior Anurneys Ronald P, Al Mllf RMrn 11. llingtt Jennifer A. IloharAli Mlehaat C. Ihnn wy John P. Drlsroll U. Clinton francia careld A. r Kr o I SIT' r•in M. Kuumo James R. Swtenrr Patricia A. Th.mp.nn Derwin I)anneile W. Allyn Sarah A. Dr..mer Mary Mn Urndy lark T. limas Duknr A. ChnN•an.AndetMn rrnnk C hrinn(r Tracy S. Collins Cincotta A. Cunrov Paul C. Cornelius Dawn C. Coco... Carol o. Uavi. Dianur C. Onni heriy luhu Dra Ca,rud D. I lay Arrtnrn K. IMy'..hi Mary M. l lunnn Sandra 1. Jchn:mn Cmlu, M. Jndr Neil 11. Kurt.„ eye I1eb4y1, Kod•ns Mark A, Leiming•r $u(amx Lmranm hiwk L, Lin.lyy Omhn C. Lnulltialt An drry J. MNn Mk hclie A. M.iller IlUNCt%X DMt'.ricl d k k Nc Nllh ®1 Aonrr¢ S. I'ks. William l 1. Reeve, Martin U. Rollw ' 1,. S.-hrr.1.1 Mirhrlle A. G9i,tky L,ny U. St.•innn.l. Stet ol.Tnner Stanley J. l'aI Fl Jtn'enilc I)t'pm hurnl vv. 12nS Mnllnn Avtune FROM :COUNTY CIUIL ATTY. TO: 509 3243478 SEP 23, 1994 11:05AM #114 P.02 Stanley R. Schultz Attorney at Law Witherspoon, Kelley, Davenport & Toole 1100 U.S. Bank Building 422 West Riverside Spokane, WA 99201 -0390 Dear Stan: September 23, 1994 Re: Drainage Easement Agreement for Ridgemont Estates Please make the following final revisions to your recent redraft of the above agreement: Page 1. paragraph Z: add a sentence that terminates the previous draft of the easement agreement that was recently recorded by your clients at Auditor No. 9409200309. Page 1, paragraph 2, last line: delete the period at the end of the sentence, replace with a comma and add the following language: "...and the property located within Ridgemont Estates North 3rd and 4th Additions." Page 2, paragraph 4, next to last line : insert the word "in" after "County" Paae 3. paragraph 5. + signs: please type in the divided (+) sign [on my keyboard it is control -v, 6, 8, enter] where it has been handwritten in at two locations in the paragraph, because as handwritten it is almost too faint to copy. Alternatively, simply spell out the sign as "divided ". Page 4, paragraph.second line: change Exhibit "B" to Exhibit "A ". Page 4. paragraph 8, next to last line: insert the word "to" between "right" and "correct ". FROM:COUNTY CIUIL ATTY. TO: 509 3243478 SEP 23, 1994 11:06AM #114 P.03 Paae 5 -6. signature block for Snokaue County of County Commissioners: replace as follows: ATTEST: WILLIAM E. DONAHUE Clerk of the Board By: Rosanne Montague Deputy Clerk cc Ron Arkills Dean Franz BOARD OF COUNTY COMMISSIONERS OF SPOKANE COUNTY, WASHINGTON Steven Hasson, Chairman D. E. Chilberg Patricia A. Mummey Exhibit A: substitute a copy of the attached exhibit. Please fax me a copy for one last look before execution. Very truly yours, Michael C. Dempsey Deputy Prosecuting Attorney FROM:000NTY CIUIL ATTY. TO: 509 3243478 SEP 23, 1994 11:06RM #114 P.04 EXHIBIT "A" LEGAL DESCRIPTION (Assessor's Parcel No. 45255.9065): A portion of the Northeast quarter of the Northwest quarter and the Northwest quarter of the Northeast quarter of Section 25, Range 25 North, Range 44 East, W.M., being more particularly described as follows: A drainage pond retention site easement over that portion of the Northeast quarter of the Northwest quarter and the Northwest quarter of the Northeast quarter of Section 25, Township 25 North, Range 44 East, W.M., being more particularly described as follows: BEGIN at a point that is South 89 °16'42" East, a distance of 626.35 feet from the North quarter corner of said Section 25, said point being common to the North boundary of said Section 25 and the West boundary of. L.eo N. Cashatt and others, as established by a survey performed by Adams Engineering in 1976; thence along said Cashatt West boundary, the following two (2) courses, South 30 °08'12" East, a distance of 152.25 feet; thence South 50 °22'25" East, a distance of. 26.00 feet; thence South 52 °30'00" West a distance of 135.07 feet; thence South 30'22'00" East. a distance of 119.42 feet; thence South 56 °26'16" West, a distance of 40.06 feet; thence North 30'22'00" West, a distance of 116.74 feet; thence South 52 °38'00" West, a distance of. 307.71 feet; thence South 50 °22'00" East, a distance of 151.82 feet; thence South 39 °'6'16" West, a distance of 40.00 feet; thence North 50 °22'00" West. a distance of 161.19 feet; thence South 45 °39'33" West, a distance of 349.84 feet; thence South 50 °33'44" East, a distance of. 199.11 fee.-; thence South 39 °26'16" West. a distance of 40.00 feet; thence North 50'33'44" West. a distance of 203.47 feet; thence South 45 °39'33" hest:, a distance of 84.90 feet: thence South 76 °35'00" West, a distance of 144.00 feet; thence South 07 °35'00" West. a distance of 89.92 feet to the East line of the Future Plat of Ridgemont Estates North 3r� Addition: thence. North 02 °51'52" West, along said East line, a distance of 215.09 feet to a point on a nontanaent curve concave to the West with a radius of 50.00 feet and a radial bearing of South 44 °22'04" East, said point being on the Easterly of the Future Plat of Ridgemont Estates North 4th, the. next 2 courses along said Easterly line; thence Northeasterly, Northerly and Northwesterly through a central angle of 119 °08'01 ", an arc distance of 103.96 feet; thence North 16 °29'55" East, radial to said curve, a distance of 28.10 feet; thence North 56 °18'15" East, a distance of 248.44 feet; thence North 32 °00'54" East, a distance of 244.68 feet; thence North 7 76'30'08" East, a dist.ancw of 154.57 feet: th North 54 °00'44" East, a distance of 186.55 feet: thence North 62 °14'59" East. a distance of 149.00 feet; thence North 26 °59'32" East, a distance of 29.57 feet to the South right of way (R.'W) of 16th Avenue and a point on a curve concave to the Northwest with a radius of. 495.72 feet and a radial bearing of South 16'03'48" East, thence Northeasterly along said South R.'W, through a central angle_ of 3 °15'02 ", an arc distance of 28.12 feet; thence South 89 °09'28" Fast, 25.38 feet. to the Point of Beginning; Situate in the County of Spokane, State of Washington; page 1 of 2 J Exhibit "A" ^L ^_ -J. - •45255.9 *o r. A irw -L - FROM :COUNTY CIUIL ATTY. TO: 509 3243478 SEP 23, 1994 11 :07AM #114 P.05 — 1 I I I I r - -�- •■%, ` 1 I / i I 1 . � ♦ - --- - 1 \ I f - 1 1 1 y \ - I 1 1 1 ■ ♦♦ a 1 k ; -- �__ _ L-- - -_ -� ♦ _ -d I i1 I I 1 1 \ \\ A 1 1 1 1 a \ I I ,� \ \ \ (- -- I - .>r_- 1 1411 � - . \ \.„..- - 4 - 1 -1 1 I •, F , a.JO C;.' , 1 • 1 1 1 il \ J \ r \ 1 1 \ 1 . , I-. • .. - -... 1 I I. / � / 1 1 / I � ,\ \l \ N\ \ • \ ' .g ' "I, , r r - s :rp: 31 M1 y •., • ] \• ` . °' 4`n - 1 a \ , • . ' `•\ � �e. • \;(� 1 ' I , 1 • 4 4 , 1 , X • le I ' 1 ! , �' 1 7 \ \ . 7 L 1 4 . D.'IL/0•1 War I 4•f•J90. •CDW I.lyI D J•IILII.1" MAUI It WO I ? . ••• CGIKAL n•••4 9 (WAAL. •• • 11 ,o V• • w1••• ATILT L &U•1.4 Id /AD 1. In11.• L C L11L 1 LZWD,ILAD• •I TO L•.L• D (WI. Iu•. 1U•vu• (Wulf 1 .41 (1.... 1 -a ! TU. ''1'I I(1I•Rt OF .IIh•4 1 I IL1?RDI' UIX v ill[. m D•NLL I NA Urn 1 O• f lI•S ••• 1 D11wi.�.1 DPW' It DMI•• 11•onlr .• vL D1 Dp•.1.0 Y 10.4. II I01..1• • V 1110.JUG• (/Lar• D tMU, FAX NO: [ , c / ` 9 - a al,.la 7.I )'G> "���0 / j DATE: Nw.. •cam FROM: 'Y1 Lail • LACOJI FROM:COUNTY CIVIL ATTY. TO: 509 3243478 SEP 23, 1994 11:07RM 4114 P.06 WITHERSPOON, KELLEY, DAVENPORT & TOOLE A PROFESSIONAL SERVICE CORPORATION ATTORf:EVS A. COUNSELORS FACSIMILE TR?.wsMTSSION COVER ?.AGE / ' CITY /ST?,TE: 7 •_ / 1m/940_•.305 e. BANK BUILDInC 421 WEST RIVERSIDE. SUITE 1100 SPOKANE, MISHINQTDN 99101.0190 tlenont; I$O Ilecolmer. 009, 01.1111 ODEUSDa.l.1 • • Raw C•J•1 ro.K�. .I_Jf! .` ' 3 4 ACCOUNT N0: /?:.37:7 K2 This transmission contains pages, including this cover page. If you do not receive all pages, or if any of the pages are illegible, please contact operator at (509)624 -5265. Unless otherwise indicated, the information contained in this FAX message is information protectod by attorney /client privilege, and /or attorney work-product privileges. It is intended only for the individual named above, and the privileges are not waived by virtue of_this Navin; been sent by facsimile. If the reader of this facsimile, or the employee or agent responsible to deliver it to the named recipient, is not the intended recipient, you are hereby notified that any dissemination, distribution or copying of this communication is strictly prohibited. If you have received this communication in error, please immediately notify us by telephone to arrange for the return of the transmitted documents. FROt1:SPOK CNTY CIUIL ATTY. TO: 509 3243478 SEP 27. 1994 11:39RM P.01 • 1 NATURE SAVER" FAX MEMO 01616 Iw1B y' V; p a // from , K y Ey IGOIDCD\. 2..( Co. feat 4.c...•• �Y DliDne 1 I mien or • Fug Fax/ , �• Stanley R. Schultz Attorney at Law Witherspoon, Kelley, Davenport & Toole 1160 U.$. Bank Building 422 West Riverside Spokane, WA 99201 -03 Re: Drainage Easement Agreement for Ridgemont Estates Dear Stan: our fax machine wasn't working properly yesterday and your fax came eat the following revision thereto, to in rather piecemeal. However, I was able to decipher:your new earagraph. I would sugg our language: eliminate some possible ambiguities in y "It is specifically understood and agreed that the lots or owners of lots in Ridgemont Estates, Ridgemont Estates No. 2 and ve Ridgemont No. 3, alt liable liab eedfor reimbursement of "Developed Prorer ercy ", eration Costs or for service charges levied for �iYOVidedeforpin this and repair of the drainage facilities as p rr to said easement. agreement, because the owners of such lots as developed have �._ farina riahrQ to dr i surface MS of ot sa id easement. This or 4,411.- TIP Co}}ntV to levy rates, m t the stasse a '• other charges or assessments on such loT�e� p L ?` �r will receive Property it the owners of such lot water receive service's ne facili installed by or the County or, from additional et9rm water services —provided by the County.' September 27', 1994 See, ;for authority, RCW 36.89.090 and RCW 36.89.110. / r vie Qv � vy L v FROM :SPOK CNTY CIVIL RTTY. cc Dean Franz TO: 509 3243478 SEP 27, 1994 11 :40RM P.02 Please fax me a copy of the entire agreement once we have resolved the above language. Very truly yours, Michael C. Dempsey Deputy Prosecuting Attorney . FROM :SPOK CNTY CIUIL RTTY. S 'P O K A N F_ DONALD C. IIROCKETT PROSECUTING ATTORNEY Please FAX to: I.) Criminal Division Crinsy -City Public Safely Buildbnb W. 1100 Mallon Avenue . Sp.rtam, WA 99260.0270 FAX Phone No: ( ) ,T 24 — 'JY7e Civil Division W. 1115 Broadway Spokane, WA 99260.0270 (509) 456.5764 SCAN 272.5764 TO: 509 3243478 SEP 27, 1994 10 :41RM P.01 OFFICE OF PROSECUTING ATTORNEY 9- 2. ? - C From: MICHAEL C. DEMPSEY Deputy Prosecuting Attorney, Spokane County Prosecuting Attorney's Office Telephone No.: (509), 456 -5764 FAX Phone No.: (509) 456 -3672 Pages 1 through 7 including cover page. If there are any questions regarding the message sent, please contact Donna, Civil Department, Prosecuting Attorney's Office, 456- 5764.' O U N T Ate: AR • e .% .4- , -1 .e. Vs■Il✓ NOTICE: The information contained in this transmission is privileged and confidential,: It is intended for the use the individual or entity named above. If the reader of this message ie not the intended addressee, the reader is hereby notified that any consideration,l dissemination or duplication of this communication is strictly prohibited. If the addressee has received this communication in error, please return to the above address, by mail and notify this office immediately by telephone. Thank you. WARNING: Most Fax machines produce copies on thermal paper. The image produced is highly unstable and will deteriorate significantly in a few years. This record should be copied on a plain paper copier prior to filing as a record. County - City Public So wilding W. 1100 Mal Avenue Spokane A 99260 -0270 (509) 62 SCAN 272.3662 JAMES P. EMACIO Chkl larpuy STEPHEN R. MATnt ws Chkr Cominal Deputy Senior nomeys Ronald P. Arklll, Robert B. Binger Jennifer A. Bohareki MIChMI C. Dempsey John F. Drkmll D. Clinton Franck Carald A. Gt. Kevin M. Karam lames R. Sweclr--r Patricia A, Thompson Deputies Demrnr W. Allen Sarah A. Miner Mary Ann Brady Jack T. Brooks Darken A. Chovan.Andeswn Frank Chasid% Trety 5. Collins Carmel* A. Conroy PAW C. Cornelius Dawn C. Cone, Carol 0. DAVIS Dunne C. Haughtily John Grasso Edward D.11ny Arthur K. 1tayashl Mary M. /la n nun Sandra L.lohnsion Carlin M. Jude Nell H. Katb,s Debby J. Kurbini Mark A. Laimingrr Stamina Laimnna Mark B. Lindsey Camlyn C. Lom hlan Andrew J. Melts Michell. A. M,ikr David Q X �A RfWX Annelle 5. Plese William II Reeve. Martin D. Rollin. Elizabeth L. SChnedcl Michelle A. Solimky Lary D, 5u(nmetb Sic. en J. Tueker 5lanky J waltz 0 0 0 I Family Law lkpanmens Fraud /Unigs Ullil Juv.-nilr Department , W. 601 Mallon Avenue N.721 Jelferann W. 1208 Mallon Avenue Spokane, WA 99201 Spokane. WA 99260 0270 Spokane. WA 90260.0270 (509) 458.2486 SCAN 272.2486 (509) 450.6416 SCAN 272 -6416 . (509) 456.6046 SCAN 272.6046 FROM:SPOK CNTY CIUIL ATTY. TO: 509 3243479 SEP 27, 1994 10:42RM P.02 Michael C. Dempe'.ey Deputy Prosecuting Attorney 5-� c' d's !' ✓ o u is a - 9'v«� /Vl i `�' U vi Q cam- O ._ 9/a7194r cg X") oar Stanley R. Schultz Attorney at Law Witherspoon, Kelley, Davenport & Toole 1100 U.S. Bank Building : 422 west Riverside Spokane, WA 99201 -0390 Re: Drainage Easement Agreement for Ridgemont Estates Dear Stan: Our fax machine wasn't working properly yesterday and your fax came in rather piecemeal. However, I was able to decipher your new paragraph. I would suggest the following revision thereto, to eliminate some possible ambiguities in your language: Ei%f "It is spec} - fically understood and agreed that the lots or owners of loth in Ridgemont Estates, Ridgemont Estates No. 2 and Ridgemont No. 3, although included in the definition of "Developed Property ",. are not liable for reimbursement of costs or for service charges levied for maintenance, operation and repair of the drainage facilities as provided for in this agreements tattoo the oc.r— .,E lcar `` pxe aOZc ..Xn.m .-,.h.. Ia....; 4' , ..1, is Please: �y fax me copy of the entire a once we have resolved the above language. Very truly yours., September 27, 1994 FROM:SPOK CNTY CIUIL ATTY. TO: 509 3243478 SEP 27, 1994 10 :42RM P.03 cc Dean Franz FROM:000NTY CIUIL ATTY. Please FAX to: Zeal / 47-13 1, 2. Cri:uiu 11 Itivision Cr unty.('iry Public Salely Building TO: 509 3243478 FAX Phone No: ( ) 72 DoNALo C. BROCKETT OI -FICE OF PROSECUI1NC Al IORNET PRO$IX:UPINC ATTORNEY 9- 22 - 'S/ From: MICHAEL C. DEMPSEY Deputy Prosecuting Attorney, Spokane County Prosecuting Attorney's Office Telephone No.: (509) 456 -5764 FAX Phone No.: (509) 456 -3672 c Pages 1 through /0 , including cover page. 4 re i 41St Y5 .l . f. 4.. / / -. - r e, 1.1 A. Af /✓ c vet. ccod e ray o f fl h r lt+ If there are any questions regarding the message sent, please contact Donna, Civil Department, Prosecuting Attorney's Office, 456 -5764. NOTICE: The information contained in this transmission is privileged and confidential. It is intended for the use of the individual or entity named above. If the reader of this message is not the intended addressee, the reader is hereby notified that any consideration, dissemination or duplication of this communication is strictly prohibited. If the addressee has received this communication in error, please return to the above address by mail and notify this office immediately by telephone. Thank you. WARNING: Most Fax machines produce copies on thermal paper. The image produced is highly unstable and will deteriorate significantly in a few years. This record should be copied on a plain paper copier prior to filing as a record. Cwil UI''.nm W, 111:• ILuadway ICtmiiy IA* P riftmein W 601 Mello, 4venlc SEP 23. 1994 11:05AM 4114 P.01 V LI N 'f Y o- e r . a n-o . 4 hind/1)11V Unit N. in Itffe,s'co County - City Public Building W. 1100 M. n Avenue Spok A 99260 -0270 (509) 3662 SCAN 272 -3662 JAMES P. R■ACIO Chin( Ikp.ny STEPHEN R. MATrHbW c Chief CrIMnnl Deputy Senior Anurneys Ronald P, Al Mllf RMrn 11. llingtt Jennifer A. IloharAli Mlehaat C. Ihnn wy John P. Drlsroll U. Clinton francia careld A. r Kr o I SIT' r•in M. Kuumo James R. Swtenrr Patricia A. Th.mp.nn Derwin I)anneile W. Allyn Sarah A. Dr..mer Mary Mn Urndy lark T. limas Duknr A. ChnN•an.AndetMn rrnnk C hrinn(r Tracy S. Collins Cincotta A. Cunrov Paul C. Cornelius Dawn C. Coco... Carol o. Uavi. Dianur C. Onni heriy luhu Dra Ca,rud D. I lay Arrtnrn K. IMy'..hi Mary M. l lunnn Sandra 1. Jchn:mn Cmlu, M. Jndr Neil 11. Kurt.„ eye I1eb4y1, Kod•ns Mark A, Leiming•r $u(amx Lmranm hiwk L, Lin.lyy Omhn C. Lnulltialt An drry J. MNn Mk hclie A. M.iller IlUNCt%X DMt'.ricl d k k Nc Nllh ®1 Aonrr¢ S. I'ks. William l 1. Reeve, Martin U. Rollw ' 1,. S.-hrr.1.1 Mirhrlle A. G9i,tky L,ny U. St.•innn.l. Stet ol.Tnner Stanley J. l'aI Fl Jtn'enilc I)t'pm hurnl vv. 12nS Mnllnn Avtune FROM :COUNTY CIUIL ATTY. TO: 509 3243478 SEP 23, 1994 11:05AM #114 P.02 Stanley R. Schultz Attorney at Law Witherspoon, Kelley, Davenport & Toole 1100 U.S. Bank Building 422 West Riverside Spokane, WA 99201 -0390 Dear Stan: September 23, 1994 Re: Drainage Easement Agreement for Ridgemont Estates Please make the following final revisions to your recent redraft of the above agreement: Page 1. paragraph Z: add a sentence that terminates the previous draft of the easement agreement that was recently recorded by your clients at Auditor No. 9409200309. Page 1, paragraph 2, last line: delete the period at the end of the sentence, replace with a comma and add the following language: "...and the property located within Ridgemont Estates North 3rd and 4th Additions." Page 2, paragraph 4, next to last line : insert the word "in" after "County" Paae 3. paragraph 5. + signs: please type in the divided (+) sign [on my keyboard it is control -v, 6, 8, enter] where it has been handwritten in at two locations in the paragraph, because as handwritten it is almost too faint to copy. Alternatively, simply spell out the sign as "divided ". Page 4, paragraph.second line: change Exhibit "B" to Exhibit "A ". Page 4. paragraph 8, next to last line: insert the word "to" between "right" and "correct ". FROM:COUNTY CIUIL ATTY. TO: 509 3243478 SEP 23, 1994 11:06AM #114 P.03 Paae 5 -6. signature block for Snokaue County of County Commissioners: replace as follows: ATTEST: WILLIAM E. DONAHUE Clerk of the Board By: Rosanne Montague Deputy Clerk cc Ron Arkills Dean Franz BOARD OF COUNTY COMMISSIONERS OF SPOKANE COUNTY, WASHINGTON Steven Hasson, Chairman D. E. Chilberg Patricia A. Mummey Exhibit A: substitute a copy of the attached exhibit. Please fax me a copy for one last look before execution. Very truly yours, Michael C. Dempsey Deputy Prosecuting Attorney FROM:000NTY CIUIL ATTY. TO: 509 3243478 SEP 23, 1994 11:06RM #114 P.04 EXHIBIT "A" LEGAL DESCRIPTION (Assessor's Parcel No. 45255.9065): A portion of the Northeast quarter of the Northwest quarter and the Northwest quarter of the Northeast quarter of Section 25, Range 25 North, Range 44 East, W.M., being more particularly described as follows: A drainage pond retention site easement over that portion of the Northeast quarter of the Northwest quarter and the Northwest quarter of the Northeast quarter of Section 25, Township 25 North, Range 44 East, W.M., being more particularly described as follows: BEGIN at a point that is South 89 °16'42" East, a distance of 626.35 feet from the North quarter corner of said Section 25, said point being common to the North boundary of said Section 25 and the West boundary of. L.eo N. Cashatt and others, as established by a survey performed by Adams Engineering in 1976; thence along said Cashatt West boundary, the following two (2) courses, South 30 °08'12" East, a distance of 152.25 feet; thence South 50 °22'25" East, a distance of. 26.00 feet; thence South 52 °30'00" West a distance of 135.07 feet; thence South 30'22'00" East. a distance of 119.42 feet; thence South 56 °26'16" West, a distance of 40.06 feet; thence North 30'22'00" West, a distance of 116.74 feet; thence South 52 °38'00" West, a distance of. 307.71 feet; thence South 50 °22'00" East, a distance of 151.82 feet; thence South 39 °'6'16" West, a distance of 40.00 feet; thence North 50 °22'00" West. a distance of 161.19 feet; thence South 45 °39'33" West, a distance of 349.84 feet; thence South 50 °33'44" East, a distance of. 199.11 fee.-; thence South 39 °26'16" West. a distance of 40.00 feet; thence North 50'33'44" West. a distance of 203.47 feet; thence South 45 °39'33" hest:, a distance of 84.90 feet: thence South 76 °35'00" West, a distance of 144.00 feet; thence South 07 °35'00" West. a distance of 89.92 feet to the East line of the Future Plat of Ridgemont Estates North 3r� Addition: thence. North 02 °51'52" West, along said East line, a distance of 215.09 feet to a point on a nontanaent curve concave to the West with a radius of 50.00 feet and a radial bearing of South 44 °22'04" East, said point being on the Easterly of the Future Plat of Ridgemont Estates North 4th, the. next 2 courses along said Easterly line; thence Northeasterly, Northerly and Northwesterly through a central angle of 119 °08'01 ", an arc distance of 103.96 feet; thence North 16 °29'55" East, radial to said curve, a distance of 28.10 feet; thence North 56 °18'15" East, a distance of 248.44 feet; thence North 32 °00'54" East, a distance of 244.68 feet; thence North 7 76'30'08" East, a dist.ancw of 154.57 feet: th North 54 °00'44" East, a distance of 186.55 feet: thence North 62 °14'59" East. a distance of 149.00 feet; thence North 26 °59'32" East, a distance of 29.57 feet to the South right of way (R.'W) of 16th Avenue and a point on a curve concave to the Northwest with a radius of. 495.72 feet and a radial bearing of South 16'03'48" East, thence Northeasterly along said South R.'W, through a central angle_ of 3 °15'02 ", an arc distance of 28.12 feet; thence South 89 °09'28" Fast, 25.38 feet. to the Point of Beginning; Situate in the County of Spokane, State of Washington; page 1 of 2 J Exhibit "A" ^L ^_ -J. - •45255.9 *o r. A irw -L - FROM :COUNTY CIUIL ATTY. TO: 509 3243478 SEP 23, 1994 11 :07AM #114 P.05 — 1 I I I I r - -�- •■%, ` 1 I / i I 1 . � ♦ - --- - 1 \ I f - 1 1 1 y \ - I 1 1 1 ■ ♦♦ a 1 k ; -- �__ _ L-- - -_ -� ♦ _ -d I i1 I I 1 1 \ \\ A 1 1 1 1 a \ I I ,� \ \ \ (- -- I - .>r_- 1 1411 � - . \ \.„..- - 4 - 1 -1 1 I •, F , a.JO C;.' , 1 • 1 1 1 il \ J \ r \ 1 1 \ 1 . , I-. • .. - -... 1 I I. / � / 1 1 / I � ,\ \l \ N\ \ • \ ' .g ' "I, , r r - s :rp: 31 M1 y •., • ] \• ` . °' 4`n - 1 a \ , • . ' `•\ � �e. • \;(� 1 ' I , 1 • 4 4 , 1 , X • le I ' 1 ! , �' 1 7 \ \ . 7 L 1 4 . D.'IL/0•1 War I 4•f•J90. •CDW I.lyI D J•IILII.1" MAUI It WO I ? . ••• CGIKAL n•••4 9 (WAAL. •• • 11 ,o V• • w1••• ATILT L &U•1.4 Id /AD 1. In11.• L C L11L 1 LZWD,ILAD• •I TO L•.L• D (WI. Iu•. 1U•vu• (Wulf 1 .41 (1.... 1 -a ! TU. ''1'I I(1I•Rt OF .IIh•4 1 I IL1?RDI' UIX v ill[. m D•NLL I NA Urn 1 O• f lI•S ••• 1 D11wi.�.1 DPW' It DMI•• 11•onlr .• vL D1 Dp•.1.0 Y 10.4. II I01..1• • V 1110.JUG• (/Lar• D tMU, FAX NO: [ , c / ` 9 - a al,.la 7.I )'G> "���0 / j DATE: Nw.. •cam FROM: 'Y1 Lail • LACOJI FROM:COUNTY CIVIL ATTY. TO: 509 3243478 SEP 23, 1994 11:07RM 4114 P.06 WITHERSPOON, KELLEY, DAVENPORT & TOOLE A PROFESSIONAL SERVICE CORPORATION ATTORf:EVS A. COUNSELORS FACSIMILE TR?.wsMTSSION COVER ?.AGE / ' CITY /ST?,TE: 7 •_ / 1m/940_•.305 e. BANK BUILDInC 421 WEST RIVERSIDE. SUITE 1100 SPOKANE, MISHINQTDN 99101.0190 tlenont; I$O Ilecolmer. 009, 01.1111 ODEUSDa.l.1 • • Raw C•J•1 ro.K�. .I_Jf! .` ' 3 4 ACCOUNT N0: /?:.37:7 K2 This transmission contains pages, including this cover page. If you do not receive all pages, or if any of the pages are illegible, please contact operator at (509)624 -5265. Unless otherwise indicated, the information contained in this FAX message is information protectod by attorney /client privilege, and /or attorney work-product privileges. It is intended only for the individual named above, and the privileges are not waived by virtue of_this Navin; been sent by facsimile. If the reader of this facsimile, or the employee or agent responsible to deliver it to the named recipient, is not the intended recipient, you are hereby notified that any dissemination, distribution or copying of this communication is strictly prohibited. If you have received this communication in error, please immediately notify us by telephone to arrange for the return of the transmitted documents. referred MODIFIED EASEMENT AGREEMENT This Agreement is made and entered into by and between R & T, INC., a Washington Corporation, Alfons B. Renz and Hilda E. Renz, husband and wife (hereinafter collectively referred to as "Renz ") and Spokane County, a political subdivision of the State of Washington (hereinafter referred to as "County "). RECITALS 1. Renz and the County entered into a Storm Drainage Easement and Right -of -Way Agreement dated February 9, 1978 and recorded under Spokane County Auditor's No. 8004140245. 2: Renz and the County desire to terminate the Easement referred to in paragraph 1 above and concurrently substitute and replace it with this Agreement. NOW, THEREFORE, in consideration of mutual covenants and conditions contained wherein, Renz and the County agree as follows: 1. The Storm Drainage Easement and Right -of -Way Agreement to in Recital Paragraph 1 above is hereby terminated and replaced in its entirety with this Agreement. 2. Concurrently with said termination, convey to Spokane County and to the Ridgemont and 4th Additions Homeowners Associat "Homeowners Association ") an Easement over, across the property described in Exhibit "A" attached hereto and incorporated herein by this reference for the purpose of conveying and disposing of storm water and drainage run off originating on or flowing through property described in Exhibit "B" attached hereto and incorporated herein by this reference (hereinafter referred to as "Developed Property "). SRS/9409.009 -1- Renz does hereby Estates North 3rd ion (hereinafter under, upon and 3. Notwithstanding the provisions of paragraph 2 above, it is specially understood and agreed that the drainage easement may receive the natural flow of water from undeveloped area within the drainage basin for this easement identified in that certain study performed by Simpson Engineers, Inc. in conjunction with Project Nos. P -1684B and P -1684C on file with the Spokane County Engineer. With the consent of Spokane County or at its request, the description of the Developed Property may be expanded to include newly platted or divided properties ( "additional properties ") if (a) the developer of such additional properties has entered into a written agreement with the entity responsible for operation, maintenance and repair of the drainage facilities pursuant to this •agreement, (b) said agreement addresses payment of a pro rata share of the costs of operation, maintaining and repairing the facilities by the owner of such properties, in accordance with paragraph 5 below (c) said agreement has been approved as to form by the County and is fully executed and recorded before final plat approval, and (d) thirty days written notice has been provided by Spokane County to the owners of the property described in Exhibit "A" and to the entity responsible for operation and maintenance of the drainage facilities that such additional properties are being added to the Developed Property. 4. Renz agrees to install at its expense drainage facilities on the easement as described and in accordance with approved plans on file with the Spokane County Engineer's Office. Upon completion of the drainage facilities, Renz shall submit to the County Engineer "as- constructed plans" stamped by a licensed professional engineer. Renz shall reimburse Spokane County for all costs, expenses and fees incurred by the County approving the plans for and inspecting the drainage facilities. 5. The Homeowners Association shall be responsible for the operation, maintenance and repair of the drainage facilities SRS/9409.009 -2- located within the easement area, including but not limited to maintaining a cover of dryland type grasses within the pond, keeping any ditches open and clean, keeping the drywells free of debris and silt, and routinely inspecting the drainage facilities. Optional shrubbery and /or trees may be planted within the drainage easement provided there is no obstruction of flow or storm water percolation. It is specifically understood and agreed, however, that in the event additional properties are added to the description of the Developed Property, the owners of said additional properties shall be required to reimburse the Homeowners Association for the cost of operation, maintenance and repair of said facilities on a pro rata basis. The pro rata annual reimbursement costs for such additional properties shall be determined as follows: Spokane County may, at its option and at any time hereafter, assume responsibility for operation, maintenance and repair of the drainage facilities and may levy service charges on lots within Ridgemont Estates North 3rd and 4th Additions, and on any additional properties added to the Developed Property, for the pro rata share costs of such operation, determined as follows: Such charges shall be collected and enforced by Spokane County in the manner provided by County resolution or ordinance for the levying and enforcement of storm water service charges by Spokane County. SRS/9409.009 Pro rata share = annual maintenance cost x F. F = number of lots added to the Developed Property - (number of lots added to Developed Property + number of lots in Ridgemont Estates North 3rd and 4th Addition). Pro rata share for each lot = annual maintenance cost (number of lots added to Developed Property + number of lots in Ridgemont Estates North 3rd and 4th Addition). -3- 6. Upon thirty (30) days written notice to Spokane County, Renz may convey title to the property described in Exhibit "B" to the Homeowners Association. The owner of said property shall not grade, pave or otherwise develop said property, nor obstruct the flow of drainage and storm water in a manner inconsistent with the approved drainage plans for the property described on Exhibit "A ", without the express written consent of Spokane County. With the County's consent, the owner of the property described in Exhibit "A" may convey title to such property to Spokane County. 7. Renz grants and conveys to Spokane County an easement for ingress and egress to, over and from the drainage easement for the purpose of routine inspection and emergency maintenance and repair of the drainage facilities. 8. If the Homeowners Association fails to maintain and operate the drainage facilities in good working order, Spokane County may give written notice of such failure to the Homeowners Association and if such failure is not corrected within the period indicated in said notice, Spokane County shall have the right correct said maintenance failure or compel such failure to be corrected at the expense of the Homeowners Association. 9. If the facilities are damaged due to the negligence or intentional act of any party to this Agreement, that party shall be responsible for the cost of repairing such damage and for indemnifying the other parties of this Agreement against all damages, costs, suits, claims and expenses arising out of or caused by such negligence or intentional act. 10. Renz and the Homeowners Association hereby agree to indemnify Spokane County for all damages, including inverse condemnation, that any property, real or personal, caused by resulting from the deficient construction of the drainage SRS/9409.009 -4- facilities or the failure of Homeowners Association to properly maintain and operate said facilities. 11. The owner of the property described on Exhibit "A" shall timely pay and keep current all taxes and assessments levied against such property, and shall keep such property free of all liens and security interests. 12. The easements granted herein shall respectively run with the property described in Exhibit "A" and "B" hereto and the provisions of this Agreement shall be binding upon and inhere to the benefit of the successors and interest of the parties to this Agreement. 13. Any action that law, suit and equity or judicial proceeding for the enforcement of this Agreement or any provision hereto shall be instituted only in a court of competent jurisdiction within Spokane County, Washington. 14. This Agreement is complete and in total agreement of the parties and may not be modified except through a written Agreement executed with the same formalities as the present Agreement. 15. This Agreement replaces and supersedes an earlier Easement Agreement recorded September 20, 1994, under Spokane County Auditor's File No. 9409200309. SPOKANE COUNTY A political subdivision of the State of Washington By SRS/9409.009 -5- BOARD OF COUNTY COMMISSIONERS OF SPOKANE COUNTY, WASHINGTON Commissioner ALFONS B. RENZ, by Da#W W. Renz his Attorney -in -Fact 1 H : . RENZ, •y Day her Attorney -in -Fact R & T, INC. Its 'z.441b,1 \ 1 SRS/9409.009 W. Renz -6- Commissioner Commissioner ATTEST WILLIAM E. DONAHUE CLERK OF THE BOARD DEPUTY CLERK STATE OF WASHINGTON ) ss. County of Spokane ) I certify that I know or have satisfactory evidence that DAVID W. RENZ signed this instrument as attorney -in -fact of ALFONS B. BENZ, and acknowledged it to be the free and voluntary act of said ALFONS B. BENZ, for the uses and purposes mentioned in the instrument, and on oath stated that the power of attorney authorizing the execution of this instrument has not been revoked, and that said ALFONS B. BENZ is now living. DATED: 9 , 1994. SRS/9409.009 NOTARY PUBLIC in aq'd for the State of Washington, residing at Spokane My appointment expires: i/• P - 9t STATE OF WASHINGTON ) ss. County of Spokane ) I certify that I know or have satisfactory evidence that DAVID W. RENZ signed this instrument as attorney -in -fact of HILDA E. BENZ, and acknowledged it to be the free and voluntary act of said HILDA E. BENZ, for the uses and purposes mentioned in the instrument, and on oath stated that the power of attorney authorizing the execution of this instrument has not been revoked, and that said HILDA E. BENZ is now living. DATED: 4 -1 L , 1994. NOTARY PUBLIC in and for the State of Washington, residing at Spokane My appointment expires: c f• (9.9f -7- STATE OF WASHINGTON ) ss. County of Spokane ) I certify that I know or have satisfactory evidence that is the person who appeared before me, and said person acknowledged that he signed this instrument, on oath stated that he was authorized to execute the instrument and acknowledged it, as the of SPOKANE COUNTY, to be the free and voluntary act of such party for the uses and purposes mentioned in the instrument. DATED: , 1994. NOTARY PUBLIC in and for the State of Washington, residing at Spokane My appointment expires: STATE OF WASHINGTON ) ss. County of Spokane ) I certify that I know or have satisfactory evidence that kkev0,41kt.r is the person who appeared before me, and said person acfknowledged that he signed this instrument, on oath stated that he was authorized to execute the instrument and acknowledged it, as the P _natA. of R & T, INC., to be the free and voluntary act of such party for the uses and purposes mentioned in the instrument. DATED: , 1994. SRS/9409.009 f Ulu. J, -CE NOTARY PUBLIC in a for the State of Washington, residing at Spokane My appointment expires: 4. 9.'7( -8- 45255.9065 * * * * * * * *'* * * ** *Iii *FRY * * * * ** * ** * ** EXHIBIT "A" ** * * * * ** * * * * ** * * * * * * * * * * ** * * ** *** A drainage pond retention site easement over that portion of the Northeast quarter of the Northwest quarter and the Northwest quarter of the Northeast quarter of Section 25, Township 25 North, Range 44 East, W.M., being more particularly described as follows: BEGIN at a point that is South 89 °16'42" East, a distance of 626.35 feet from the North quarter corner of said Section 25, said point being common to the North boundary of said Section 25 and the West boundary of Leo N. Cashatt and others, as established by a survey performed by Adams Engineering in 1976; thence along said Cashatt West boundary, the following two (2) 'courses, South 30 °08'12" East, a distance of 152.25 feet; thence South 50 °22'25" East. a distance of 26.00 feet; thence South 52°30'00" West a distance of 135.07 feet; thence South 30 °22'00" East, a distance of 119.42 feet; thence 'South 56'26'16" west, a distance of 40.06 feet; thence North 30'22'00" West, a distance of 116.74 feet; thence South 52 °38'00" West, a distance of 307.71 feet; thence South 50 °22'00" East, a distance of 151.82 feet; thence South 39 °26'16" West, a distance of 40.00 feet; thence North 50'22'00" West, a distance of 161.19 feet; thence South 45 °39'33" West, a distance of 349.84 feet; thence South 50 °33'44" East, a distance of 199.11 feet; thence South 39 °26'16" West, a distance of 40.00 feet; thence North 50 °33'44" West, a distance of 203.47 feet; thence South 45 °39'33" Wes`_, a distance of 84.90 feet; thence South 76 °35'00" West, a distance of 144.00 feet; thence South 07 °35'00" West, a distance of 89.92 feet en the East line of the Future Plat of Ridaemont Estates North 3rd Addition; thence North 02 °51'52" West, along said East line, a distance of 215.89 feet to a point on a nontangent curve concave to Lhe West with a radius of 50.00 feet and a radial bearing of South 44 °22'04" Cast, said point being on the Easterly line of the Future P.1...t of Ridgemont Estates North 4th, the next 2 courses aicng said Easterly line;. thence Northeasterly, Northerly and Northwesterly through a central angle of 119 °08'01 ", an arc distance of 103.96 feet; thence North 16 °29'55" East, radial to said curve, a distance of 28.10 feet; thence North 56 °18'15" East, a distance of 248.44 feet; thence North 32 °00'54" East, a distance of 244.68 feet; thence North 76 °30'08" East, a distance of 154.57 feet; thence North 54 °00'44" East, a distance of 186.55 feet;' thence North 62 °14'59" East, a distance of 149.00 feet; thtnce North 26 °59'32" East, a distance of 29.57 feet to the ;ouch right of way (R /W) of 16th Avenue and a point on a curve concave to the Northwest with a radius of 495.72 feet and a radial bearing of South 16 °02'48" East, thence Northeasterly along said South R /W, throuah a central angle of 3 °15'02 ", an arc distance of 28.12 feet; thence South 89 °09'28" East, 25.38 feet to the Point of Beginning; Situate in the County of Spokane, State of Washington; ***** * ** ***** ***** * * * * ****** * ***** * Exhibit "An 45255.9'065 - - *****t *I*** ** ****** Ir*.* *L***-1-1-rek.-11/i/ t I t _ , • , l 1 / 1 I .. _ -• ..„. ‘ .. •-, 1 / .... - • I • t I 1 I ' 7' - .- - 51 ■ 1 1 I * .1 r / s. 1 / 1 r 1 - . 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N .' i ; I -• I / I 1 1 t 1 I \ ; ■ \ t• I i k 1 1 • "•••••••- i 1 .- i . ____... ,..._ ...________ ......._ ....", .____. .... , , • .. • / / / / ( • \'‘ I I 1 , \ . • #. , . \ z . 1 • ..„. . ... • i . I I I il , • • ‘ , X I I L -1 ' ' \ \ ‘ ). \ • ‘, ', i I . • • • ..' ‘,. \ N ' t • 1 ' \ . \ 1 I I \ ••• ,' t 1 I •,‘ , \ ; 1 • i t I - I •„" ,••• •.• ‘ \ ,. 1 P ."- .•••-- ‘1 • \ • 2 ." • \ , • • • • e •. •. • • \ \ • • . • er. -V- • • • 4 tr. ..■■•• ••• / • , • N 1 • 4 / 1 .. . • ..----j----- I ,...• --• -- .. ----.,.._ . ..--- ' ____---____ ••••■ --- .."---• ....-,---.-.' ,•-• 1 a / ,„ .•• 1- • •-• \ ■ \ a a EXHIBIT "B" Ridgemont Estates, Ridgemont Estates No. 2 and Ridgemont Estates No. 3 Criminal Division County -City Public Safety Building IV. 1100 Mallon Avenue Spokane, %VA 99260-0270 (509)456-366? SCAN 272 -3662 DONALD C. BROCKE=' PROSECUTING ATTORNEY Dear Stan: S P O K A N Cisd Division W. 1115 Broadway Spokane, WA 99260 -0270 (509) 456 -5764 SCAN 272 -5764 OFFICE OF PROSECUTING ATTORNEY Stanley R. Schultz Attorney at Law Witherspoon, Kelley, Davenport & Toole 1100 U.S. Bank Building 422 West Riverside Spokane, WA 99201 -0390 September 21, 1994 C o U N T Y Re: Drainage Easement Agreement for Ridgemont Estates I just received a copy of your redraft of the above agreement, which had been executed by your clients and recorded with the County Auditor. This "agreement" will have to be rescinded because (1) it has not been signed by the County, (2) it contains some errors, and (3) after further reflection, County Engineering staff and myself have some additional changes that are important and should be incorporated in the agreement. We request the following revisions in your redraft: Page 1, oarao-raoh 2. second line: after "Spokane County" insert ",..and to the Ridgemont Estates North 3rd and 4th Additions Homeowners Association (hereinafter " "Homeowners Association ") - - -' Paae 2, oaraoraoh 3. last sentence : revise as follows: "With the consent of Spokane County or at its request, the description of the Developed Property may be expanded to include newly platted or divided properties ( "additional properties") if (a) the developer of such additional properties has entered into a County - City Public Safety Building W. 1100 Mallon Avenue Spokane, WA 99260 -0270 (509) 456 -3662 SCAN 272 -3662 JAMES P. EMACIO Chief Deputy STEPHEN R. MATTIIEIVS Chief Cnmmal Deputy Senor Attorneys Ronald P. Arkills Rohn B Binger lemtifer A. Boharski Michael C. Dempsey John E. Driscoll D. Clinton Francis Garald A. Gesinger Kevin M Korsmo James R Sweetser Patricia A. Thompson Deputies Dannette IV. Allen Sarah A. (lcemer Mary Ann Brady lack T. Brooks Susan C. Buerkens Darlene A. C And :rson Frank Christoff Trani 5 Collins Cannela A. Conroy Paul G Cornelius Dawn C Cortez Carol 0. Davis Mary NI. Doran Dianne G. Dougherty John Grasso Edward D. Hay Arthur K. I lavashi Sandra L. Johnston Carlin M. Jude Ned H. Korbas )nhnT Krall Debby J. Kurbitz Mark A. Laiminger Suzanne Lamarma Mark E. Lindsey Carolyn G. Louthian Andrew J. Melts Michelle A Miller David R Nehen Annette 9 Phse William H. Reeves Martin D. Rollins Elizabeth L Schoedel Michelle A. Solinsky Larry D.Steinmetz Steven J Tucker Stefanie Walter Stanley J. Waltz ❑ ❑ ❑ Family Law Department Fraud /Drugs Unit Juvenile Department 1V. 601 Mallon Avenue N 721 Jefferson W. 1208 Mallon Avenue Spokane, WA 99201 Spokane. WA 99260 -0270 Spokane, %VA 99260 -0270 (509) 458-2486 SCAN 272 -2486 (509) 45 SCAN 272-6416 (509) 456 -6046 SCAN 272.-6046 Mr. Stan Schultz - 2 - September 21, 1994 written agreement with the entity responsible for operation, maintenance and repair of the drainage facilities pursuant to this agreement, (b) said agreement . addresses payment of a pro rata share of the costs of operating, maintaining and repairing the facilities by the owners of such properties, in accordance with paragraph 5 below (c) said agreement has been approved as to form by the County and is fully executed and recorded before final plat approval, and (d) thirty days written notice has been provided by Spokane County to the owner of the property described in Exhibit "A" and to the entity responsible for operation and maintenance of the drainage facilities that such additional properties are being added to the Developed Property." Page 2, paragraph 5, first 4 lines: Delete and replace with the following: "The Homeowners Association shall be responsible for the operation, maintenance and repair of the drainage facilities located within the easement area, including but not limited to maintaining a cover..." Page 2, paragraph 5. last line: delete and replace with "...description of the Developed Property, the..." Page 3. Paragraph 5. remainder of paragraph: revise as follows: "...owners of said additional properties shall be required to reimburse the Homeowners Association for the cost of operation, maintenance and repair of said facilities on a pro rata basis. The pro rata annual reimbursement costs for such additional properties shall be determined as follows: Pro rata share = annual maintenance cost x F. F = number of lots added to the service acc& D'evel'oped Property - (number of lots added to ocrvi ar a Deve1',gped;2;Prope + number of lots in Ridgem` "ont Estates 3rd and 4th Addition). Spokane County may, at its option and at any time hereafter, assume responsibility for operation, maintenance and repair of the drainage facilities and may Mr. Stan Schultz levy- • service ch arges on lots with n:; Ridgemont Estates M ,�_ 4 R ortP 3rd - 'a 4 n Add}.tions, aud tgnrokany additional proper the:'Developed Pr operty; f or the' pro r ata:,, share ' cosofsuch ; : ;operat2on , d as S Such sYi charges all ,be colleeted .and enforced b okdaq y _ p County iti ::.the manner provd by county resoluti 'or ordihance for the. °le vying and' enforcement'of storm. water sexva..ce cha S S bkane County Page 3. paragraph 6. first sentence: delete in its entirety. The Storm Water Utility is not a separate legal entity from the County and is a division of the public works department. I rue the day we named it. Page 3. paragraph 6. next to last line: Revise "Exhibit "B "" to "Exhibit "A " ". Exhibit A: County Engineering would like to include a schematic of the easement area as page 2 of this exhibit (see page 1 of enclosure). Also, we would like to use the legal from the title report, since the same has already been checked for sufficiency (see page 2 of enclosure). Exhibit B: Replace with the following: " Ridgemont Estates, Ridgemont Estates No. 2 and Ridgemont Estates No. 3" I think you should also include a sentence that rescinds and terminates the document that was recorded. Please also put a proper signature block and attestation for approval by the Board of County Commissioners. After we have agreed on the final form of the agreement, County Engineering would like to take one last look at the document in its revised from before execution by the parties. cc Ron Arkills - 3 - September 21, 1994 Pro rata -- share„ '£f `aiea?M lot_ 'annual maintenance 'cost, ( number of ::-Lot`s added to Developed .Property: +,,:number; of :_lots iii Ridgemont EstatesNprth 3rd and 4th Addition} Very truly yours, Michael C. Dempsey Deputy Prosecuting Attorney Mr. Stan Schultz - 3 - September 21, 1994 1 0Y1seOY 6 charges R clots, iEhin, Ridgemont Estates North 3rd Pandk 4t.h Ad&it,zan&,4!and on. any additional properties "added to. the Developed Property fo Mthe ;pro rata' share costs such.: ope on, a4et *gied ' as Pro r share for _each Iot annual 2�tainte1131?ce cost 6*.p o£ „Aga : added :_ to Developed . Property + xt number of - lots - in Rzdgemont_Estates north 3and 4th Adthtxon) -, SueYi' G Barges _ sha3 l; be cbllecte`d and_ enforced bye spoka??e County, 'in';the =manner provided ; bx'Gounty resolut_ian .or- ordzniance ;'f.or the levying anclenforcement of storm water service ;c harges . by Sp Co Pane 3. oaragranh 6. first sentence: delete in its entirety. The Storm Water Utility is not a separate legal entity from the County and is a division of the public works department. I rue the day we named it. Page 3. naraaraoh 6. next to last line: Revise "Exhibit "B "" to "Exhibit "A " ". Exhibit A: County Engineering would like to include a schematic of the easement area as page 2 of this exhibit (see page 1 of enclosure). Also, we would like to use the legal from the title report, since the same has already been checked for sufficiency (see page 2 of enclosure). Exhibit B: Replace with the following: "Ridgemont Estates, Ridgemont Estates No. 2 and Ridgemont Estates No. 3" I think you should also include a sentence that rescinds and terminates the document that was recorded. Please also put a proper signature block and attestation for approval by the Board of County Commissioners. After we have agreed on the final form of the agreement, County Engineering would like to take one last look at the document in its revised from before execution by the parties. cc Ron Arkills Dean Franz Very truly yours, Michael C. Dempsey Deputy Prosecuting Attorney Date: To: From: September 21, 1994 Ron Arkills Memorandum Dean Franz Public.. Works, Developement Services Subject: Drainage Easement Agreement for Ridgemont Estates Letter to Stan Schultz dated 19 Sept. 1994 (P- 1684B, C) .. Upon performing a review of the letter to Stan Schultz, which iists the proposed changes to the Drainage Easement, we believe some revisions are needed. These are: Item 111 -- Page 2. oaraeraoh 5: last 4 lines: Add a sentence to your proposed revisions to read: "The Developer of a new development within the drainage basin shall prepare an agreement to be between the Homeowner's Association of Ridgemont Estates North 3rd & 4th Addition, and the homeowner's association of the new development, which will provide the mechanism for payment of the pro -rata share. The agreement shall be signed by representatives of both parties prior to final approval of the new plat or development." Item lit -- Page 2. naragranh 5: last 4 lines: Revise the last phrase to read: "Spokane County may, at its option and at any time hereafter, assume responsibility for operation, maintenance and repair of the drainage facilities, and may charge property owner's within Ridgemont Estates North 3rd & 4th Addition, and property owner's who have a maintenance responsibility and agreement with Ridgemont Estates North 3rd & 4th Addition, their pro -rata share." Please provide us a copy of the final drattl we can perform a final reviesy3(prior to giving the easement document to the Developer. Thank you. S P o K A N e DONALD C. BROCKETT PROSECUTING ATTORNEY Dear Stan: OFFICE OF PROSECUTING ATTORNEY Stanley R. Schultz Attorney at Law Witherspoon, Kelley, Davenport & Toole 1100 U.S. Bank Building 422 West Riverside Spokane, WA 99201 -0390 C o September 19, 1994 RECEIVED SEP 2 0 1994 SPOKANE COUNTY ENGINEER Re: Drainage Easement Agreement for Ridgemont Estates After receiving your draft of the above agreement, I met with Ron Arkills of our office and Dean Franz from County Engineering to discuss the same. We have a number of requested revisions, which are generally as-follows: Page 1. oaraaraoh 2: delete "and release". Add "and drainage" after "storm water" Page 2, paragraph 3, lines 3 -9: revise to say: "...certain study performed by Simpson Engineers Inc. in conjunction with Project Nos. P -1684B and P- 1684C, on file with the Spokane County Engineer. Upon thirty days notice by Spokane County to the owner of the property described in Exhibit "A" and to the person or entity responsible for operation and maintenance of the drainage facilities, the description of . developed property in Exhibit "B" shal be expanded to include any newly platted or divided properties within the drainage basin." Page 2. paragraph 5 first sentence: replace the period at the end of the sentence with a comma, and add Criminal 1)v,sinn County -City Public Safety Building W. 1100 Mallon Avenue Spokane. WA 99260 -0270 (5091456. 662 SCAN 272 -7662 ". -- including but not limited to maintaining a cover of dryland type grasses within the pond, keeping any ditches open and clean, keeping the drywells free of debris and silt, and routinely inspecting the drainage facilities. Optional shrubbery and /or trees may be planted within the drainage easement provided there is no obstruction of flow or storm water percolation." Civil Div icion W. 1115 Broadway Spokane, WA 99260 -0270 (509) 456 -5764 SCAN 272 -5764 CJ N 'T - y - 0 ❑ Family Law Department Fraud /Drugs Unit W. 601 Mallon Avenue N. 721 Jefferson Spokane. WA 99201 Spokane, W,\ 99260 -0270 (509) 458 -2486 SCAN 272 -2486 (509) 459-6416 SCAN 272.6416 County - City Public Safety Building W. 1100 Mallon Avenue Spokane, WA 99260 -0270 (509) 456 -3662 SCAN 272 -3662 JAMES P. EMACIO Chie( Deputy STEPHEN R MATTIIEWS Chief Criminal Deputy Senior Attorneys Ronald P. Arlalls Rohn B. Binger Jennifer A. Hoharskl Michael C. Dempsey John F. Driscoll D. Clinton Francis Gaald A Gesinger Kevin M. Konmo James R. Sweeuer Patricia A. Thompson Deputies Dannette W. Allen Sarah A 8eemcr Mary Arm Brady Jack T. Proofs Susir. C. Uuerkens Darlene A. Chovan- Anderson Frank Christof( Tracy 5. Collins Carmela A Conroy Paul G. Cornelius Dawn C. Corm.. Carol D. Davin Man' M. Doran Dianne G. Dougherty John Grasso Edward 0 Hay Arthur K. Hayashi Sandra L Johnston Carlin M. Jude Ne11 H Korbas John 1. Kral' Debby J. Kurbitz Mark A. farminger Suzanne Lamanna Mark E. Lindsey Carolyn G. Louthian Andrew J. Metes nnrheve A caner David R. Nehen Annette 5. Pkx William H. Reeves Martin D. Rollins Elizabeth L. Scha ter Michelle A. Solinaky Larry D Steinmetz Steven 1. Tuel er Stefanie Walter Stanley I. Waltz ❑ pn enilc Department W. 1208 Mallon Avenue Spokane. WA 99260.0270 (509) 456.6016 SCAN 272-66076 Mr. Stan Schultz - 2 - September 19, 1994 Page 2. paragraph 5. 8th line: add "annually" between "to" and "reimburse" Page 2. paragraph 5. last 4 lines: revise as follows: "...the owners of said additional properties shall be required to reimburse the Homeowners Association for the cost of operation, maintenance and repair of said facilities on a pro rata basis. The pro rata annual reimbursement costs for such additional properties shall be determined as follows: Pro rata share = annual maintenance cost x F. F = number of lots added to the service area + (number of lots added to service area + number of lots in Ridgemont Estates North 3rd and 4th Addition). Spokane County may, at its option and at any time hereafter, assume responsibility for operation, maintenance and repair of the drainage facilities and may charge the owners of lots in the der j area "fife pro rata costs of such operation, maintenance and repair as provided for in this agreement." paragraph 6: revise to state as follows "Upon thirty (30) days written notice to Spokane County, Renz may convey title to the property described in Exhibit "B" to the Homeowners Association. The owner of said property shall not grade, pave or otherwise develop said property, nor obstruct the flow of drainage and storm water in a manner inconsistent with the approved drainage plans for the property described on Exhibit "A ", without the express written consent of Spokane County. With the County's consent, the owner of the property described in Exhibit "B" may convey title to such property to Spokane County." paragraph 8. line 1 -2: revise "maintain and operate" to "maintain, operate or repair" new paragraph: insert a new paragraph after paragraph 10 reading as follows: "The owner of the property described on Exhibit "A" shall timely pay and keep current all taxes and assessments levied against such property, and shall keep such property free of all liens and security interests." Mr. Stan Schultz - 3 - September 19, 1994 Please be advised that I have now turned this matter over into the capable hands of Ron Arkills. cc Ron Arkills Dean Franz Very truly yours, Michael C. Dempsey Deputy Prosecuting Attorney Ut1 /db/74 WM. A. D✓ENPOIIT KOOLRr L. MAGHUSON NED M BARNES wq.LIAM 0. SYIHMBE•• ROBERT H. LAMP K. THOMAS (VINOUS THOMAS O COCIHRAN UV &KE M SWINION JOSEPH H WESSMAN JEFFREY 1. SUPINOIk• DONALD J. LURES.: LESLIE A WENHERHEAD• MIll1AP D NPPIV BRIAN T REKOEI:EI BDFARU 1 A ON A MA% ETT R JR EANLLY R ECIIUDZ MI(l1APl. F NIPNSTPnT• )WIN M RILEY III UANIYI. 11 OFIMP PF DANIEL E FINN'EY MARY JIANNIYI•J DENNIS M OATS•• TwOnIY M LAYLO DONALD 14 00WII_ IR SPEPTEA A w S ROMOID G KRHLEEN D. RISEN JOHN B IIBAH IR. ALLAN 11.1C01.E WILLIAM VISLLEY KARL K BROGUE •• ANOwSI, b'l,,+ •I vww YJa u. 14:77 W e I Y1Ct< UUN ZS, ICtLLt T 1U. »a 11101 tz � Pryor l � � p q , WJTHERSPOON, KELLEY, DAVENPORT & TOOLL `- TO: OF: CITY /STATE: lm/9403.305 A PROFESSIONAI, SERVICE CORPORATION ATTORNEYS & COUNSELORS U. S. RANK BUILDING 422 WEST RIVERSIDE. SUITE 1100 SPOKANE, WASHINGTON 99201 -0390 '@iephoac (509) 624.5265 t)ecopkr: (309)458 -2728 FACSIMILE TRANSMISSION COVER PAU • FAX No: " J. l (n _ � CO 7o7 DATE: OF COUNEEL FROM: \SX,.7 4 1.4 % 4 ACCOUNT NO,: (f,1) ****** * * * * * * * * * * * * **f*/* * * * * * * * * * * * ** COMM ERASERS OFFICE IC MOJILNAH NIN1JC CORM W41 ENe. ID.II0 V+ PPMTFJJOh1 * * * * * * * * * * * * * * * * * * * * * * * * * * *.* * * * * * * * This transmission contains pages, including this cover page. If you do not receive all pages, or if any of the pages are illegible, please contact operator at (509)624 -5265. Unless otherwise indicated, the information contained in this FAX message is information protected by attorney /client privilege, and /or attorney work - product privileges. It is intended only for the individual named above, and the privileges are not waived by virtue of this having been sent by facsimile. If the reader of this facsimile, or the employee or agent responsible to deliver it to the named recipient, is not the intended recipient, you are hereby notified that any dissemination, distribution or copying of this communication is strictly prohibited. If you have received this communication in error, please immediately notify us by telephone to arrange for the return of the transmitted documents. -ISSUSSION DRAFT ONLY EASEMENT AGREEMENT This Agreement is made and entered into by and between R & T, INC., a Washington Corporation, Alfons B. Renz and Hilda E. Renz, husband and wife (hereinafter collectively referred to as "Benz ") and Spokane County, a political subdivision of the State of Washington (hereinafter referred to as "County "). RECITALS 1. Renz and the County entered into a Storm Drainage Easement and Right -of -Way Agreement dated February 9, 1978 and recorded under Spokane County Auditor's No. 8004140245. 2. Renz and the County desire to terminate the Easement referred to in paragraph 1 above and concurrently substitute and replace it with this Agreement. NOW, THEREFORE, in consideration of mutual covenants and conditions contained wherein, Renz and the County agree as follows: 1. The Storm Drainage Easement and Right -of -Way Agreement referred to in Recital Paragraph 1 above is hereby terminated and replaced in its entirety with this Agreement. 2. Concurrently with said termination, Renz does hereby convey and release to Spokane County an Easement over, under, upon and across the property described in Exhibit " A" attached hereto and incorporated herein by this reference for the purpose of conveying and disposing of storm water run off originating on or flowing through property escribed in Exhibit attached hereto and incorporated herein by this reference (hereinafter referred to as "Developed Property "). 3. Notwithstanding the provisions of paragraph 2 above, it is specially understood and agreed that the drainage easement may receive the natural flow of water from undeveloped area within the drainage basin for this easement identified in that certain study dated by Inland Pacific Engineering Company on file with the Spokane County Engineer. It is further agreed that upon mutual agreement of Renz and the County, the description of the developed property in Exhibit "B" may be amended and expanded to provide for storm water runoff from developments on the presently undeveloped properties within the drainage basin. 4.' Renz agrees to install at its expense drainage facilities on the basement as described and in accordance with approved plans on file with the Spokane County Engineer's Office for project Upon completion of the drainage facilities, Renz shall submit to the County Engineer "as- constructed plans" stamped by a licensed professional engineer. Renz shall reimburse Spokane County for all costs, expenses and fees incurred by the County approving the plans for and inspecting the drainage facilities. 5. Ridgemont Estates North 3rd and 4th Additions Homeowners Association (hereinafter "Homeowners Association ") shall be responsible for the operation maintenance and repair of said drainage facilities for the Developed Properties described in Exhibit "3 ". It is specifically understood and agreed, however, that in the event additional properties are added to the description of Developed Properties in Exhibit "B" that said additional property shall be required to reimburse the Homeowners Association for cost of operation maintenance and repair of said facilities pro rata based upon the number of lots on said additional developed property. 6. Spokane County may, without the consent or approval of Renz, transfer and convey its interest in this Agreement to the Spokane County Storm Water Utility. Similarity, Renz, may without the approval or consent of Spokane County, transfer its right, title and obligation, without recourse, to the Homeowners Association. 7. Renz grants and conveys to Spokane County an easement for ingress and egress to, over and from the drainage easement for the purpose of routine inspection and emergency maintenance and repair of the drainage facilities. 8. If the Homeowners Association fails to maintain and operate the drainage facilities in good working order, Spokane County may give written notice of such failure to the Homeowners Association and if such failure is not corrected within the period indicated in said notice, Spokane County shall have the right correct said maintenance failure or compel such failure to be corrected at the expense of the Homeowners Association. 9. If the facilities are damaged due to the negligence or intentional act of any.party to this Agreement, that party shall be responsible for the cost of repairing such damage and for indemnifying the other parties of this Agreement against all damages, costs, suits, claims and expenses arising out of or caused by such negligence or intentional act. 10. Renz and the Homeowners Association hereby agree to indemnify Spokane County for all damages, including inverse condemnation, that any property, real or personal, caused by resulting from the deficient construction of the drainage facilities or the failure of Homeowners Association to properly maintain and operate said facilities. 11. The easements granted herein shall respectively run with the property described in Exhibit "A" and "B" hereto and the provisions of this Agreement shall be binding upon and -3- M1 inhere to the benefit of the successors and interest of the parties to this Agreement. 12. Any action that law, suit and equity or judicial proceeding for the enforcement of this Agreement or any provision hereto shall be instituted only in a court of competent jurisdiction within Spokane County, Washington. 13. This Agreement is complete and in total agreement of the parties and may not be modified except through a written Agreement executed with the same formalities as the present Agreement. ALFONS B. RENZ HILDA E. RENZ - SPOKANE COUNTY A political subdivision of the State of Washington By S F' O K A N E OFFICE OF THE COUNTY ENGINEER Ronald C. Hormann, P.E., County Engineer Date: September 13, 1994 To: Mike Demsey Memorandum From: Dean Franz, P.E. C A DIVISION OF THE PUBLIC Dennis M. • Paragraph 3. Page 2: The Project No.'s are P- 1684B, and P- 1684C. U NI T Y WORKS DEPARTMENT Scott, P.E., Director Subject: Easement Agreement for Regional Retention Pond Associated with Ridgemont Estates North 3rd & 4th Add. (P- 1684B, C) In response to your comments to the Draft Drainage Agreement, I have some additional comments for your consideration. My recommendations are provided below. • Paragraph 3. Page 2: The last sentence of this paragraph, as shown in the original draft easement, should be deleted. Revise the last sentence of your proposed revision which begins "Upon thirty days notice... ". Revise and replace with: "Upon thirty days notice by Spokane County to the owner of the property described in Exhibit "A ", and to the person /party responsible for the operation and maintenance of the drainage facilities, the description of the developed property in Exhibit "B" shall be revised, which will include any newly planed properties within the drainage basin." • Paragranh 5 Page 3: Revise the phrase to be added to the first sentence to read: "including, hut not limited to, maintaining a cover of dryland -type grasses within the pond, keeping open and clean any ditches, keeping the drywells free of debris and silt material, and providing routine inspection of the drainage facilities. Optional shrubbery and /or trees may be planted within the easement provided there is no obstruction of flow and obstruction of storm water percolation." • Paragraph 5. Last Line: Do not add the proposed phrase to the last sentence, it is far too confusing. Instead, I recommend adding the following sentence to the end of Paragraph 5: "The annual reimbursement pro -rata costs shall be determined as follows: Pro -Rata Share = (Annual Maintenance Cost) x F 1026 W. Broadway Ave. • Spokane, WA 99260 -0170 • (509) 456 -3600 FAX: (509) 324 -3478 TDD: (509) 324 -3166 Memorandum; September 13, 1994 Regional Retention Pond Easement fP- 1684B. Cl page 2 F = (Number of new lots added to the service area) (Number of new lots added to the service area) + (Number of lots in Ridgemont Estatcs North 3rd & 4th Addition) Spokane County may, at its option and at any time hereafter, assume responsibility for operation, maintenance and repair of the drainage facilities." • Exhibit "B" is attached to this memorandum. • Add a paragraph describing the procedure to follow when, and if, the County decides to take over ownership and maintenance of the pond site. Thank you for allowing the Development Services Dept. to review this proposed easement document. Please provide us the opportunity to review the final draft of the easement document. If you have any questions or would like to discuss further, please contact me. Ridgemont Estates 0 Ridgemont Estates No. 2 Ridgemont Estates No. 3 Exhibit "B" In consideration of the regional retention Pond, the following described plats have storm water which originates or flows through their properties, and discharges into the regional retention pond: Memorandum Date: September 21,, To: Ron Arkills,✓✓ From: Dean Franz Public Works, Developement Services Subject: Drainage Easement Agreement for Ridgemont Estates Letter to Stan Schultz dated 19 Sept. 1994 (P- 1684B, C) Upon performing a review of the letter to Stan Schultz, which iists the proposed changes to the Drainage Easement, we believe some revisions are needed. These are: Item 111 -- Page 2. naraeraoh 5: last 4 lines: Add a sentence to your proposed revisions to read: "The Developer of a new development within the drainage basin shall prepare an agreement to be between the Homeowner's Association of Ridgemont Estates North 3rd & 4th Addition, and the homeowner's association of the new development, which will provide the mechanism for payment of the pro -rata share. The agreement shall be signed by representatives of both parries prior to final approval of the new plat or development." Item #2 -- Page 2. naraeraoh 5: last 4 lines: Revise the last phrase to read: "Spokane County may, at its option and at any time hereafter, assume responsibility for operation, maintenance and repair of the drainage facilities, and may charge property owner's within Ridgemont Estates North 3rd & 4th Addition, and property owner's who have a maintenance responsibility and agreement with Ridgemont Estates North 3rd & 4th Addition, their pro -rata share." Please provide us a copy of the final drat -so we can perform a final reviesy' prior to giving the easement document to the Developer. Thank you. DONALD C. BROCKEIT PROSECUTING ATTORNEY Stanley R. Schultz Attorney at Law Witherspoon, Kelley, Davenport & Toole 1100 U.S. Bank Building 422 West Riverside Spokane, WA 99201 -0390 Re: Drainage Easement Agreement for Ridgemont Estates Dear Stan: S P 0 K A N E t' -- .including but not limited to maintaining a cover of dryland type grasses within the pond, keeping any ditches open and clean, keeping the drywells free of debris and silt, and routinely inspecting the drainage facilities. Optional shrubbery and /or trees may be planted within the drainage easement provided there is no obstruction of flow or storm water percolation." ❑ Criminal Division Cuunty •City Public Safety Building W. 1100 Mallon Avenue Spokane, WA 99260 -0270 (509) 456 -3662 SCAN 272 -3662 Civil Division W. 1115 Broadway Spokane, WA 99260 -0270 (509) 456 -5764 SCAN 272 -576-1 RECEIVED SEP201994 SPOKANE COUNTY ENGINEER "...certain study performed by Simpson Engineers Inc. in conjunction with Project Nos. P -16848 and P- 1684C, on file with the Spokane County Engineer. Upon thirty days notice by Spokane County to the owner of the property described in Exhibit "A" and to the person or entity responsible for operation and maintenance of the drainage facilities, the description of the. developed property in Exhibit "B" shall be expanded to include any newly platted or divided properties within the drainage basin." C 0 LT N T Y OFFICE OF PROSECUTING ATIORNEY County - City Public Safety Building September 19, 1994 W. 1100 Mallon Avenue Spokane, WA 99260 -0270 (509) 456 -3662 SCAN 272 -3662 After receiving your draft of the above agreement, I met with Ron Arkills of our office and Dean Franz from County Engineering to discuss the same. We have a number of requested revisions, which are generally as-follows: Page 1, paragraph 2: delete "and release". Add "and drainage" after "storm water" Page 2. oaragraoh 3, lines 3 -9: revise to say: Page 2. paragraph 5, first sentence: replace the period at the end of the sentence with a comma, and add JAMES P. EMACIO Chief Deputy STEPHEN R. MATTHEN'S Chief Criminal Deputy Senior Attorneys Ronald P. Arkills Robert B Binger Jemufer A. Boharski Michael C. Dempsey John F. Driscoll 1). Clinton Francis Garald A. Cesinger Kevin M. Konmo James R. Swee tser Patricia A. Thompson Deputies Danneue W. Allen Sarah A. Bremer Man' Ann Brady Jack T. Brooks Susan C Buerlens Darlene A. Chovan- Anderson Frank Chnsiolf Tracy 5. Collins Carmela A Conroy Paul G Cornelius Dawn C. Cortez Carol 0 Davis Mary M. Doran Dianne G. Dougherty John Grasso Edward D Hay Arthur K. Hayashi Sandra L. Johnston Carlin M. Jude Neil H. Korbas tohnT Kral] Debby J. Kurbitz Mark A Laiminger Suzanne Lamanna Mark F. Lindsey Carolyn G. Louthian Andrew J. Mests Michelle A. miller David R. Nehen Anneue5 rkx William H. Reeves Elanin D Rollins Elizabeth L Schoedel Michelle A Solinskv Lany D. Steinmetz Steven J. Tucker Stefanie Walter Stanley J. Waltz ❑ ❑ ❑ Family Law Department Praud /Drags Unit Jun emit °apartment W. 601 Mallon Avenue N. 721 Jefferson W. 1208 Mallon Avenue Spokane, WA 99201 Spokane. WA 99260 -0270 Spokane, WA 992o0 -0270 (509)458-2.186 SCAN 272.2456 (509) 4596116 SCAN 272 -6416 (509) 456.6046 SCAN 272.6046 Mr. Stan Schultz - 2 - September 19, 1994 Page 2, paragraph 5. 8th line: add "annually" between "to" and "reimburse" Page 2, paragraph 5. last 4 lines: revise as follows: "...the owners of said additional properties shall be required to reimburse the Homeowners Association for the cost of operation, maintenance and repair of said facilities on a pro rata basis. The pro rata annual reimbursement costs for such additional properties shall be determined as follows: Pro rata share = annual maintenance cost x F. F = number of lots added to the service area (number of lots added to service area + number of lots in Ridgemont Estates North 3rd and 4th Addition). Spokane County may, at its option and at any time hereafter, assume responsibility for operation, maintenance and repair of the drainage facilities and may % charge the owners of lots in the $ nr ce_area - the pro\ rata costs of such operation, maintenance and repair as provided for in this agreement." paragraph 6: revise to state as follows "Upon thirty (30) days written notice to Spokane County, Renz may convey title to the property described in Exhibit "B" to the Homeowners Association. The owner of said property shall not grade, pave or otherwise develop said property, nor obstruct the flow of drainage and storm water in a manner inconsistent with the approved drainage plans for the property described on Exhibit "A ", without the express written consent of Spokane County. With the County's consent, the owner of the property described in Exhibit "B" may convey title to such property to Spokane County." paragraph 8. line 1 -2: revise "maintain and operate" to "maintain, operate or repair" new paragraph: insert a new paragraph after paragraph 10 reading as follows: "The owner of the property described on Exhibit "A" shall timely pay and keep current all taxes and assessments levied against such property, and shall keep such property free of all liens and security interests." Mr. Stan Schultz - 3 - September 19, 1994 Please be advised that I have now turned this matter over into the capable hands of Ron Arkills. cc Ron Arkills Dean Franz Very truly yours, Michael C. Dempsey Deputy Prosecuting Attorney 1411 /.4.Ib't4 14:5`J W1 I1 bVUUN 2S KtLLtT !NU. 000 Vela WJTHERSPOON, KELLEY, DAVENPORT & TOOLE �-- WM, A DAtNPoIR ROBLNf L. MAGNUSON NED M. DARNes WILLIAM(' SYMMBS•• ROBERT H, LAMP X. THOMAS CONNOLU THOMAS 0 COCHRAN UVANH M eWIWION JOSEPH H WESSMAN IFJERev 1. SUPIMGWI• OONAW 1. LURES.: LESLIE / /,�,/'/"I� / //� A 1) _RHEAD• BRIAN T R£K CURR TO: ./ / M1511AV D OFTIE. OFI:E• BWNLUI. ANION. IP . R MAX ETTER. Th OWLET R SOIUDZ OF i MICHAEL iNIf NSTT DT • )UIIN M RILCY III IIANII!I. 11 IIENl1Y,YN OAWR E r/944 )f MAW R C4AANlnI•l DBNNRM.nms- CITY /STATE: 4140nIY M LAYWR DONALD N DOWIP_ IR sftweeR A. W SIR 0MUW 0• RRHLEEN D JE!REN OF COUNSEL ` 7 'J� FAX NO: J > (/J / DATE: R,HN B, HBf).1R. ALLAN 11 'IIXRE L WILLIAM VKLLLCY KARL R KREQ'JE " A4. ens.. utwteni ••Awuu n 1St `n 1m/9403.305 A PROFESSIONAL SERVICE CORPORATION ATTORNEYS R COUNSELORS U. S. DANK BUILDING 422 WEST RIVERSIDE. SUITE 1100 SPOKANE, WASHINGTON 99201 - 0390 •Blephone: (509) 624.$21,5 tlroopia: (509)438-272B FACSIMILE TRANSMISSIQN COVER PAS > ..y -a. -/ T :7 l. FROM: S7 •-7 E� l(�c % 2 ACCOUNT NO:, ** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** COEUR n•ALEHE OFFICE PIG LMUNNAN AtNUL rnguu n`AI ENE. ID *140 ...I. +10. 0001661.119M * * * * * * * * * * * * * * * * * * * * * * * * * * *.* * * * * * * * This transmission contains 4) pages, including this cover page. If you do not receive all pages, or if any of the pages are illegible, please contact operator at (509)624 -5265. Unless otherwise indicated, the information contained in this FAX message is information protected by attorney /client privilege, and /or attorney work - product privileges. It is intended only for the individual named above, and the privileges are not waived by virtue of this having been sent by facsimile. If the reader of this facsimile, or the employee or agent responsible to deliver it to the named recipient, is not the intended recipient, you are hereby notified that any dissemination, distribution or copying of this communication is strictly prohibited. If you have received this communication in error, please immediately notify us by telephone to arrange for the return of the transmitted documents. 21SSJSSION DRAFT ONLY EASEMENT AGREEMENT This Agreement is made and entered into by and between R & T, INC., a Washington Corporation, Alfons B. Renz and Hilda E. Renz, husband and wife (hereinafter collectively referred to as "Renz ") and Spokane County, a political subdivision of the State of Washington (hereinafter referred to as "County "). RECITALS 1. Renz and the County entered into a Storm Drainage Easement and Right -of -Way Agreement dated February 9, 1978 and recorded under Spokane County Auditor's No 8004140245. 2. Renz and the County desire to terminate the Easement referred to in paragraph 1 above and concurrently substitute and replace it with this Agreement. NOW, THEREFORE, in consideration of mutual covenants and conditions contained wherein, Renz and the County agree as follows: 3 The Storm Drainage Easement and Right -of -Way Agreement referred to in Recital Paragraph 1 above is hereby terminated and replaced in its entirety with this Agreement. 2. Concurrently with said termination, Renz does hereby convey and release to Spokane County an Easement over, under, upon and across the property described in Exhibit _'A" attached hereto and incorporated herein by this reference for the purpose of conveying and disposing of storm water run off originating on or flowing through property `described YR attached hereto and incorporated herein by this reference (hereinafter referred to as "Developed Property"). 3. Notwithstanding the provisions of paragraph 2 above, it is specially understood and agreed that the drainage easement may receive the natural flow of water from undeveloped area within the drainage basin for this easement identified in th_t certain study dated by Inland Pacific Engineering Company on file with the Spokane County Engineer. It is further agreed that upon mutual agreement of Renz and the County, the description of the developed property in Exhibit "13" may be amended and expanded to provide for storm water runoff from developments on the presently undeveloped properties within the drainage basin. 4.' Renz agrees to install at its expense drainage facilities on the easement as described and in accordance with approved plans on file with the Spokane County Engineer's Office for project Upon completion of the drainage facilities, Renz shall submit to the County Engineer "as- constructed plans" stamped by a licensed professional engineer. Renz shall reimburse Spokane County for all costs, expenses and fees incurred by the County approving the plans for and inspecting the drainage facilities. 5. Ridgemont Estates North 3rd and 4th Additions Homeowners Association (hereinafter "Homeowners Association ") shall be responsible for the operation maintenance and repair of said drainage facilities for the Developed Properties described in Exhibit "8 ". It is specifically understood and agreed, however, that in the event additional properties are added to the description of Developed Properties in Exhibit "S" that said additional property shall be required to reimburse the Homeowners Association for cost of operation maintenance and repair of said facilities pro rata based upon the number of lots on said additional developed property. 6. Spokane County may, without the consent or approval of Renz, transfer and convey its interest in this Agreement to the Spokane County Storm Water Utility. Similarity, Renz, may -2- without the approval or consent of Spokane County, transfer its right, title and obligation, without recourse, to the Homeowners Association. 7. Renz grants and conveys to Spokane County an easement for ingress and egress to, over and from the drainage easement for the purpose of routine inspection and emergency maintenance and repair of the drainage facilities. 8. If the Homeowners Association fails to maintain and operate the drainage facilities in good working order, Spokane County may give written notice of such failure to the Homeowners Association and if such failure is not corrected within the period indicated in said notice, Spokane County shall have the right correct said maintenance failure or compel such failure to be corrected at the expense of the Homeowners Association. 9. If the facilities are damaged due to the negligence or intentional act of any party to this Agreement, that party shall be responsible for the cost of repairing such damage and for indemnifying the other parties of this Agreement against all damages, costs, suits, claims and expenses arising out of or caused by such negligence or intentional act. 10. Renz and the Homeowners Association hereby agree to indemnify Spokane County for all damages, including inverse condemnation, that any property, real or personal, caused by resulting from the deficient construction of the drainage facilities or the failure of Homeowners Association to properly maintain and operate said facilities. 11. The easements granted herein shall respectively run with the property described in Exhibit "A" and "B" hereto and the provisions of this Agreement shall be binding upon and -3- inhere to the benefit of the successors and interest of the parties to this Agreement. 12. Any action that law, suit and equity or judicial proceeding for the enforcement of this Agreement or any provision hereto shall be instituted only in a court of competent jurisdiction within Spokane County, Washington. 13. This Agreement is complete and in total agreement of the parties and may not be modified except through a written Agreement executed with the same formalities as the present Agreement. ALFONS B. RENZ HILDA E. RENZ - SPOKANE COUNTY A political subdivision of the State of Washington By Date: To: From: Subject: S P O K OFFICE OF THE COUNTY Ronald C. Hormann, A N E ENGINEER P.E., County Engineer Memorandum C O U NI T A DIVISION OF THE PUBLIC WORKS DEPARTMENT Dennis M. Scott, P.E., Director September 13, 1994 Mike Demsey /1/ Dean Franz, P E Easement Agreement for Regional Retention Pond Associated with Ridgemont Estates North 3rd & 4th Add. (P- 1684B, C) In response to your comments to the Draft Drainage Agreement, I have some additional comments for your consideration. My recommendations are provided below. • Paragraph 3. Page 2: The Project No.'s are P- 1684B, and P- 1684C. • Paragraph 3. Page 2: The last sentence of this paragraph, as shown in the original draft easement. should be deleted. Revise the last sentence of your proposed revision which begins "Upon thirty days notice... ". Revise and replace with: "Upon thirty days notice by Spokane County to the owner of the property described in Exhibit "A ", and to the person /party responsible for the operation and maintenance of the drainage facilities, the description of the developed property in Exhibit "B" shall be revised, which will include any newly planed properties within the drainage basin." • Paragraph 5. Page 3: Revise the phrase to be added to the first sentence to read: "including, hut not limited to, maintaining a cover ofdryland -type grasses within the pond, keeping open and clean any ditches, keeping the drywells free of debris and silt material, and providing routine inspection of the drainage facilities. Optional shrubbery and /or trees may be planted within the easement provided there is no obstruction of flow and obstruction of storm water percolation. " • Paragraph 5. Last Line: Do not add the proposed phrase to the last sentence, it is far too confusing. Instead, I recommend adding the following sentence to the end of Paragraph 5: "The annual reimbursement pro -rata costs shall be determined as follows: Pro -Rata Share = (Annual Maintenance Cost) x F 1026 W Broadway Ave. • Spokane, WA 99260 -0170 • (509) 4456 -3600 FAX: (509) 324 -3478 TDD: (509) 324 -3166 F = Memorandum; September 13, 1994 Reeional Retention Pond Easement (P- 1684B. Cl page 2 (Number of new lots added to the service area) (Number of new lots added to the service aura) + (Number of Tots in Ridgemont Estates North 3rd & 4th Addition) Spokane County may, at its option and at any time hereafter, assume responsibility for operation, maintenance and repair of the drainage facilities." • Exhibit "B" is attached to this memorandum. • Add a paragraph describing the procedure to follow when, and if, the County decides to take over ownership and maintenance of the pond site. Thank you for allowing the Development Services Dept. to review this proposed easement document. Please provide us the opportunity to review the final draft of the easement document. If you have any questions or would like to discuss further, please contact me. Ridgemont Estates 0 Ridgemont Estates No. 2 Ridgemont Estates No. 3 Exhibit "B" In consideration of the regional retention Pond, the following described plats have storm water which originates or flows through their properties, and discharges into the regional retention pond: )CNA 1.0 C. BROOCEIT ;:CS= C Lit NC ATIORNF.Y : e FAX t: P : i9ee i- Fr nr 2 hone No: ( ) 124_ I v 7P ... E : 1 .-2 a re•• -to ewe .•r.a -✓ ♦ ✓- . /f f c✓.flo fq 9�,. J. re ✓•o ✓ r F.• ./ e1rN 4d -4-e ✓ . Ate. t n (rrf.. e../ e•-• .zi IYn Are .6, to die," ♦ ?� �,/• r' � � f /:1D Y>., u r... 1.4 /%* yens % n • • / e/ * s 9•yf h o •• there are any questions regarding the message :ant. please contact. Donna, Civil Department, 'resecut.ing Attorney's Office, 456 -5764. The information contained in this transmission is privileged and It is intended for rho use of the individual or entity +ove. if the reader of this'ranssayc' is not th6 intended addressee, mac.: i.c hereby notified that any consideration, dissemination or Lion of chi.s canlrnun,i.cation is strictly prohibited. If the has received this corranunicacion in error, please return to the c:d::css by mail and notify this office immediately by telephone. ::U . 0: Most Fax machined produce copies on l:her'mal paper. age produced is highly unstable and will deteriorate is ntiy in a few year This record should he copied on h ;japer copier prior to filing as a record. ddn .. r.., D . , n, , n6 r n •ersnr )740.7770 277.5600 FROM:COUNTY CIUIL ATTY. OFFICE OF PROSECirt INC: All 0R NEr DATE: 8- 29- 9 9 Michael C. Dempsey Deputy Prosecuting Attorney, Civil Division • Spokane County Prosecuting Attorney's Office west. 1115 Broadway Avenue Spokane, Washington 99260 ri Telephone No_: (509) 456 -5764 FAX Phone No.: (509) 456 -3672 Pages 1 through 6 , including cover page. Civil r; -;,;on u. 1113 D *J••.• Spokane, t•/A 992C0.0))0 NU) -154 570.1 SCAN 27) 5761 • • • • QJ• TO: 509 3243478 AUG 29, 1994 9 :24A31 #038 P.01 Family L.. - Orin °Aieni W, CAI Mallon A -antic Spnkane. WA 99001 (509) 153.450 ¶L') 2? 7.7 1St F'esud / Div EI Unit N. 721101111011 Spo% ant. WA 99760.0770 (SD7) :5).6116 SCAN 27•6116 ZJ N T Y County - City Public Safety Building W. 1100 Mallon Avenue Spokane, WA 99260.0270 (509) 456-3662 SCAN 272 -3662 JAMES P. EMACIO CAWDeput CLARK D. COL YELL CNd CAmind D•pry Senior A4onvys Roben C. Binger Michael C. Dempsey' Carald A. Cc inger D. Clinton Francis re win M. Koran.* Patricia A.1 hompson Deputies Danielle W. Allen Ponds] P. Arkin] - SviltA. Bee mr .. Jennifer A Dohusi4 Mary Arm Brady Jack T. Brooks Online A. Chovan.Andormr Funk CnrisloU Tracy 5. Collins Paul C. Cornelius Dawn C. Cor it Carol 0. Orris OL not C. Dorttnr7 )ovi F. Driscoll John Cn sio Ed •ud D. Hay Arthur K. Haynhi Dash! R. I lean can Joel D. Hvpyin Mary M. I lullnn Sandra L. Johnston Carlin M. Jud 51t•en I. Kirin Nei H. Koreas Debby 1. Kurbirs Mark A. laFminrer 5tiaanne Lame:via• • Mark Lindsey Carolyn C. Lomhian ndrt•• J. Mein MKhtlle A. Miller Mal: ;n MocktNNrm Claude Mon/rooms Annelle 5, Psese will,... 11. keen, lodd Rower hlan'v. D. Rollins Dintilh L. 5chocd.1 Michelle A. SoIItA.y Larry D. tttinn,t Jam, 9, 5 —eels[. 5r•rn J. Tuotr sanlry ). walla J.. +call. Deco rmuni W. 1205 M.;lon A •t nut Spokanr, w 9970 37)0 1509) 4Sa016 SCAN 777.6016 FROM :COUNTY CIVIL RTTY. TO: 509 3243478 RUG 29. 1994 9 :26AM 4038 P.04 vil ii may receive the natural flow of water from undeveloped area d a ii within the drainage basin for this easement identified in that q� ee e.rteo- S-1 Svw Pse..l e-tea :nr - t M co .Mete a f tl Q L certain study d ° y o (aw-tl--Re413tr No , e. Fete. e) /t*F SVocmt-6 Cota.aT( IIt4JN tO 0 y � c Engine ompany on file-wit th e- Spokane- County -Eng- }-near.. �k t pp po?•1 3o O YS Are-neG -6Y SPcK ens CoureD( ro ne owreEiL vF r*tE YeoPeey{ I-i:- �.s- f.ur.t-her- agreed - that -Z,rC„ 4al agreement o -f Renz -and- the - pp�� PCse,218eo ira tflater' A.44 , - ttie Pe 4o , / k r( 2E po, r,e,: r.a Fop— ease 5 • o County -, - the - d etsoript±on the e -ty In- Extrib-- t - '°B" % I- • 4, kIt oe&Oo,+ t- firkwarannoc. oc Tate t Amore ete_tnr 0 TrIe cstt,ono,4 eF1,IC ; may be- amended and expanded -to provi -o storm- water r-unof -f- � - � a s PEvct-aP 0449 . in exi-h ,•r ,, id*-L Ge E KP6n0a7 75 PPelt/toe At C¢ - we.. Cr y Q u y k e from develnpm�. rs- on _the- flr-eeentl_y- undeve.lolsed- properties- wrtthi�n- F � 0 tts Pasts o c Sin em Wvt o 4940 024mtA re eaei Oe savr' &ctS /,eS,»,...co y. o t.he- d-r-a- gage- berwMv. V1 4 u OA /,Q6 5e, -rag 1 4)4 oo op ,p20P92 --nes CJ &nFi. PP•t•"Ae6 3.1 tag' - p y, 4.' Renz agrees to install at its expense drainage J facilities on'the easement as described and in accordance with 4 b approved plans on file with the Spokane County Engineer's Office for project . Upon completion of the ` g drainage facilities, Renz shall submit to the County Engineer ' % y "as-constructed plans" stamped by a licensed professional LL engineer. Renz shall reimburse Spokane County for all costs, 0 expenses and fees incurred by tho County approving the plans for I g 4- 0 and inspecting the drainage facilities. 1 4 1 m t0144q/ v..t ` ve -cStet `e � j E 5. l Ridgemont Estates North 3rd and 4th Additions � cr T Homeowners Association )(hereinafter "Homeowners Association ") u`°0 0 ul W ° shall be responoible f r the operation maintenance and repair of i t I o said drainage facilities for the Developed Properties described j R in Exhibit "B" It is specificallx understood and agreed, 9 c f l on, AlAti re:ototct op -nit poe 6 a'TtbIcs 00 ' T µ A 0 o however, that in, the event additional properties are added to P ° S r„ �, bie,, r t-tu wttC c , -o ..+ : OgY+n TNfG senses ne rerke - re -c+t eve c Ce••�� - r r 2 t.n description . of Developed Properties in u. Ex b t "8" that to Ellyn wtm( oteo•.at_ stl -a6g -{ ,h.co /a>;, -saes w h ra tsc , N„sy C fee said- ad shall be- requir.ed_to- _ r.eimbu-r. s the r d t. G ochss t oBSre,,er-r'tms -o w F• Apt/) QEKCet.).ri of CT02. Q tiiJtr}tC /4 Tina- Homeow118re Association for cost of operation maintenance and , C 9 t poKD ,4.o O flees Jr( /}ee DA9t a &t6 com4 ills APPRava P' -4-es , repair of said £ate es- pro -r -eta sad upon the number of 1otst on said additional developed property, pp s t j m }.[tt( DRYS .Furry k0ll cO Ts V eel ne C-o e e i Z ,u.11 Cornet TI RE r 7 0 rt� -ev41 VT 6. DpLikune Cuu„cy may, wi.hCUt the cons R , an convey Its a.ntera8t in t-hi -s -Afire me:: :.e: the- S.p-rIca.,a C e'r UttY Simr _,_rn lari , Renz y 'eager/ fescgAseo e n Extl,e i- "e" 'M 'rlC fiehM i es ,st :tr.( r Trf6 Ow e eK DF 54, OF O P� 241 S # K C CANOE. t4.M r-- PA-YE 4 / co sISS TB C'r Cr iN - � / /M,o ✓& R P S O F eAt•o+ 40.10 5aoL - cc iS9'rr— oP Fee- rife. Wert Desce) ce tit 614 4 r 4 4 "+ , w, riFe - 7+16 Ex veers w� rtew SPertte cs,,z.trl. FROM :COUNTY CIUIL ATTY. TO: 509 3243478 AUG 29, 1994 9 :27AM 14038 P.05 *h „t fh approval or co " f g CO un.ty -,— transfer- -its right, title and obl-i -gt+t on; without =ecouzse.,_to_the— Homeowners ssockat - 7 *1: * 7. Renz grants and conveys to Spokane County an easement for ingress and egress to, over and from the drainage easement for the purpose of routine inspection and emergency maintenance and repair of the drainage facilities. /N4:n r H.t 060k S e AL-. 8. If the Homeowners Association fails to --siri -egaseCirc the drainage facilities in good working order, Spokane County may give written notice of such failure to the Homeowners Association and if such failure is not corrected within the period indicated in said notice, Spokane County shall have the right correct said maintenance failure or compel such failure to be corrected at the expense of the Homeowners Association. 9. If the facilities are damaged due to the negligence or intentional act of any party to this Agreement, that party shall be responsible for the cost of repairing such damage and for indemnifying the other parties of this Agreement against all damages, costs, suits, claims and expenses arising out of or caused by such negligence or intentional act. 10. Renz and the Homeowners Association hereby agree to indemnify Spokane County for all damages, including inverse condemnation, that any property, real or personal, caused by resulting from the deficient construction of the drainage facilities or the failure of Homeowners Association to properly maintain and operate said facilities. d 11. The easements granted herein shall respectively run (11111 h the property described in Exhibit "A" and "8" hereto and provisions of this Agreement shall be binding upon and swsec mf 3t+E (P rl ossuplee0 oN £x,+,s "A " 6d#U. 7n,-/ P41 Si 4-r"O Keep Gte2*.T ,flc. TAPES 4mv uses Ym& TS tEY.CD 46AN2T SUCt{ Pad 7 1, a.O 5 15atti. ;Wow fem Br" Aims Lain 47.1.0 S6cL 21 bvmeS, FROM :COUNTY CIVIL ATTY. TO: 509 3243478 AUG 29. 1994 9 :27AM $4038 P.06 inhere to the benefit of the successors and interest of the parties to this Agreement. 12. Any action that law, suit and equity or judicial proceeding for the enforcement of this Agreement or any provision hereto shall be instituted only in a court of competent jurisdiction within Spokane County, Washington. 13. This Agreement is complete and in total agreement of the parties and may not be modified except through a written Agreement executed with the same formalities as the present. Agreement. ALFONS B. RENZ HILDA E. BENZ n. s. SPOKANE COUNTY A political subdivision of the State of Washington By z. S P 0 IC A N C OFFICE OF THE COUNTY ENGINEER • Date: September 8, 1994 To: Mike Demsey From: Dean Franz, P.E. Memorandum Dca5" -I'd 2 ;Ik 1. Jo ID 9.13 -9 ¢ C 0 U N T A DIVISION OF THE PUBLIC WORKS DEPARTMENT Ronald C. Hormann, P.E., County Engineer Dennis M. Scott, P.E., Director Subject: Easement Agreement for Regional Retention Pond Associated with Ridgemont Estates North 3rd & 4th Add. (P-1684B, C) In response to your comments to the Draft Drainage Agreement, 1 have some additional comments for your consideration. My recommendations are provided below. • Paraeranh 3.,Pace 2: The Project No.'s are P- 16848, and P- 1684C. • Paraeranh 3. Pace 2: The last sentence of this paragraph, as shown in the original draft easement, should be deleted. Revise the last sentence of your proposed revision which begins "Upon thirty days notice... ". Revise and replace with: "Upon thirty days notice by Spokane County to the owner of the property described in Exhibit "A", and to the person /party responsible for the operation and maintenance of the drainage facilities, the description of the developed property in Exhibit "B" shall he revised, which will include any newly platted properties within the drainage basin." • Paraeraoh 5 Pace 3: Revise the phrase to be added to the first sentence to read: "including, but not limited to, maintaining a cover ofdryland -type grasses within the pond, keeping open and clean any ditches, keeping the drywells free of debris and silt material, and providing routine inspection of the drainage facilities. Optional shrubbery and /or trees may be planted within the easement provided there is no obstruction of Jlow and obstruction of storm water percolation." • Paraeranh 5. Last Line: Do not add the proposed phrase to the last sentence, it is far too confusing. Instead, 1 recommend adding the following sentence to the end of Paragraph 5: "The annual reimbursement pro -rata costs shall be determined as follows: Pro -Rata Share = (Annual Maintenance Cost) x F 1026 W. Broadway Ave. • Spokane, WA 99260 -0170 • (509) 456 -3600 FAX: (509) 324 -3478 TDD: (509) 324 -3166 Memorandum; September 8, 1994 Regional Retention Pond Easement (P- I684B. Cl page 2 (Number of new lots added to the seivicc area) F (Number of new lots added to the service area) + (Number of lots in Ridgemont Estates North 3rd & 4th Addition) Spokane County may, at its option and at any time hereafter, assume responsibility for operation, maintenance and repair of the drainage facilities." • Exhibit "B"-is attached to this memorandum. Thank you for allowing the Development Services Dept. to review this proposed easement document. If you have any questions or would like to discuss further, please contact me. FROM:COUNTY CIUIL ATTY. TO: 509 3243478 SEP 7, 1994 11:32AM 4061 P.01 FAX Phone No: From: Ll Criminal nivi.inn 'ounty.l'iy Pnl,l;. 5.1. ry Ihulding W. MO Nnllnu A. cnu. 5 T' C0 K n N I DONALD C.DROCI(err PROSECUTING ATTORNEY Please FAX to: /_ en ( ) 12 v /47f OFFICE. of PROSECUTING ATTORNEY 2- 7 - MICHAEL C. DEMPSEY Deputy Prosecuting Attorney, Spokane County Prosecuting Attorney's Office Telephone No.: (509) 456 -5764 FAX Phone No.: (509) 456 -3672 Pages 1 through y , including cover page. 4 11 ( . jf.e l j e ..... • /a O �...rn... If there are any questions regarding the message sent, please contact Donna, Civil Department, Prosecuting Attorney's Office, 456 -5764. C E0 1l N T Y NOTICE: The information contained in this transmission is privileged and confidential. It is intended for the use of the individual or entity named above. If the reader of this message is not the intended addressee, the reader is hereby notified that any consideration, dissemination or duplication of this communication is strictly prohibited. If the addressee has received this communication in error, please return to the above address by mail and notify this office immediately by telephone. Thank you. WARNING: Most Fax machines produce copies on thermal paper. The image produced is highly unstable and will deteriorate significantly in a few years. This record should be copied on a plain paper copier prior to filing as a record. Civil t)iv15i011 1v.1115 Month') Ay Spokane, WA 99260.0270 fl I'amlly law I lnu W. W1 Mallon Avenue Spokane, WA 99201 fl Wand /1)10g, Unit N.721 jett y Fon Spokene. WA 992600270 County - City Public Safety Building W. 1100 Mallon Avenue Spokane, WA 99260 -0270 (509) 956 -3662 SCAN 272-3662 JAMIs 1'. hM•e'IV Chief ncr,.p• STEPHEN R. M.U9111-WS Chid Criminal Ltputy Senior Aaum.p Kcaald P. AaiIL Rabat K. Oingta Jrnni(er A. Knh r.k1 Mirharl C. Itrmprry John F. uri.a,•II U. Cimtun from i, C,rald A. (ashy r, Kcdn M. Knrmmn lames F, Sweets': I'a.rIeln A 'Ibom{•rtti Ueputi bannni. ,e W. Allen uh A. I4..mer MAIy AIM, Iiiady Mck1. Ulwka Modern A. Clrovnn A,ulecwu Monk Clu i-wn 1 racy 5, Caln. Carmela A. Cmuny Paul C. Comeliu' 011 C. Cone, ('Wroth naviA Umnm C. n.uyi a c1A1w Edward n, flay Arthur K. 1 uvuM Mary M.11mim, tiund,.r I. L:•u•,on Ca,Iln M. Inds Neil 11 K'th3. ()Mn' J. Kad•iv. Mmk A. I mm:ngrr Sutnuuc 1..nu.unin Nina I:. I.inJ.ey Cawlvn e, Wn,hinn Anchor I. MOM ARd,cllo A. Mdk, %XOOIX'AXXXXX ',Avid R. Nrhr„ Anwar S. I'Ine Willlmn 11. Ra.t, Mmli,, M. Full u„ PU,ahmh 1. FehnMrl Michell A. 4,,in,{v U 1 SuJm Steven J. Tn+ krr Saute) L wAlt pnenib Ih.I W. 1211$ Mallon Avenue Sin ik.me. WA 997 (A.0'OU 'FROM :COUNTY CIVIL ATTY. TO: 1 509 3243478 SEP 7, 1994 11 :33RM 14061 P.02 September 7, 1994 DM Stanley R. Schultz Attorney at Law Witherspoon, Kelley, Davenport & Toole 1100 U.S. Bank Building 422 West Riverside Spokane, WA 99201 -0390 Re: Drainage Easement Agreement for Ridgemont Estates Dear Stan: After receiving your draft of the above agreement, I met with Ron Arkills of our office and Dean Franz from County Engineering to discuss the same. We have a number of requested revisions, which are generally as follows: V / / paraaraoh 2: delete :and Add "and d rainage" after "storm water" paraaraoh 3, oaae 2. lines 3 -9: revise to say "certain study performed by Simpson Engineers Inc. in conjunction with Project No. , on file with the Spokane County Engineer. Upon thirty days notice by Spokane County to the owner of the property described in Exhibit "A" and to the person /party responsible for operation and maintenance of the drainage facilities, the description of the developed property in Exhibit "B" shall be expanded to provide for the conveyance and disposal of storm water and drainage from developments installed on presently undeveloped properties within the drainage basin." oaraaraDh 5. first sentence: replace the period Vwith a comma, and add •FROM:000NTY CIVIL ATTY. TO: 509 3243478 SEP 7, 1994 11:33RM #061 P.03 "including maintenance of the pond and ditches with a permanent live cover of dryland type grasses acceptable to the Spokane County Engineer, with optional shrubbery and /or trees, which vegetation does not obstruct the flow and percolation of storm drainage in the pond and ditches in accordance with the approved plans." naraaraoh 5. eighth line: add "annually" between "to" and "reimburse" / paragraph 5. last line: replace the period with a id /comma and add "divided by the sum of the number of lots in Ridgemont Estates North 3rd and 4th Additions added to the number of all additional lots added to the description of Developed Properties after the date this agreement was executed. Spokane County may, at its option and at any time hereafter, assume responsibility for operation, maintenance and repair of the drainage facilities" id /Paragraph 6: revise to state as follows "Upon thirty (30) days written notice to Spokane County, Renz may convey title to the property described in Exhibit "B" to the Homeowners Association. The owner of said property shall not grade, pave or otherwise develop said property, nor obstruct the flow of drainage and storm water in a manner inconsistent with the approved drainage plans for the property described on Exhibit "A ", without the express written consent of Spokane County." oaraaranh 8. line 1 -2: revise "maintain and operate" to "maintain, operate or repair" pew Paragraph: insert a new paragraph after paragraph 10 reading as follows: The owner of the property 'FROM :COUNTY CIVIL ATTY. TO: 509 3243478 SEP 7, 1994 11 :34AM #061 P.04 Please be advised that I have now turned this matter over into the capable hands of Ron Arkills. cc Ron Arkills Dean Franz described on Exhibit "A" shall timely pay and keep current all taxes and assessments levied against such property, and shall keep such property free of all liens and security interests. Very truly yours, Michael C. Dempsey Deputy Prosecuting Attorney Date: To: From: Subject: S P O K A N E OFFICE OF THE COUNTY ENGINEER • Ronald C. Hormann, P.E., County Engineer Dennis M. Scott, P.E., Director August 24, 1994 Ron Arkills Spokane County Attorney's Office Dean Franz, P.E. Spokane County Public Works Ridgemont Estates North 3rd & 4th Add. Eliminating Existing Drainage Easement & Replacing with a new easement (P -1684) There is an existing drainage easement located in an unplatted area near the "Ridgemont" area which needs to be replaced with a new easement. The existing drainage easement was granted to Spokane County in 1980 ( #8004140245). A copy of the easement is attached, along with a section map. A new drainage easement is needed because the former easement boundaries would encroach within an area soon to be platted into single - family lots, the easement limits are no longer applicable, and the language within the easement is no longer appropriate. A copy of the proposed easement document is attached. The issues which 1 need your input are: • Memorandum C O U N Y A DR ISION OF THE PUBLIC WORKS DEPARTMENT Define the procedure to eliminate or modify the former easement. Is a modification clause in the new easement sufficient? [Please see Draft easement document.] • Perform an overall review of the Draft easement document. The Right -of -Way Dept. has reviewed the document based upon standardized forms provided by your office. • A new item has been added to the Draft document which references an exhibit of the easement limits. It is referenced as "Exhibit B ". Is the format referencing the exhibit appropriate? Your prompt attention to this matter is appreciated. Please call me at 456 -3600 to discuss. 1026 W. Broadway Ave. • Spokane, WA 99260 -0170 • (509) 156-3600 FAX: (509) 324 -3478 TDD: (509) 324 -3166 Spokane County Engineering Department Spokane County, Washington Road File No. 2507 Vera Crest Drive Drainage Easement The Grantor(s): Alfons B. Renz and Hilda E. Renz, husband and wife and R and T Corporation, a Washington Corporation of the County of Spokane, State of Washington, for and in consideration of Mutual Benefits, the receipt of which is hereby acknowledged, grants to SPOKANE COUNTY, the PUBLIC, and the Ridgemont Estates North 3rd 6 4th Addition Homeowners Association, hereafter referred to as the HOMEOWNERS ASSOCIATION, Drainage Easements over, under, and across the following described real property situated in the County of Spokane, State of Washington: Portions of Parcel No.'s 45255.9065 See Attached Exhibit "A" The easement is shown in attached Exhibit "B ". Dr c 8act4 •94' * * * * * * * * * ** .************************************ * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** This instrument is given as a Correction Easement to modify the description contained in that certain easement excecuted by the Grantor herein which was filed for record as Document No. 8004140245 in Volume 499 Page 563 thereof and shall hereby render same null and void. *********************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** T.D.C. Inc. accepts complete and total responsibility for the construction of the drainage facilities located within the drainage easement per plans on file in the office of the Spokane County Engineer. The easement grants to T.D.C. Inc. and its authorized agents the right of ingress and egress to, over, and from said easement for the purposes of construction of the facilities. The HOMEOWNERS ASSOCIATION or their successors in interest shall maintain the drainage facilities within the easement in conformance with the approved plans on file in the County Engineers Office. Maintenance of drainage facilities includes, but is not limited to, keeping open and cleaning drainage structures, and maintaining live native -type dryland grasses or turf in the pond. The HOMEOWNERS ASSOCIATION or their successors in interest shall be responsible for payment of all claims and other liabilities which may become due for said drainage facilities. If the HOMEOWNERS ASSOCIATION or their successors in interest fails to maintain the drainage facilities, a notice of such failure may be given to the HOMEOWNERS ASSOCIATION or their successors in interest. If not corrected within the period indicated on said notice, Spokane County has the right to correct the maintenance failure, or have it corrected, at the expense of the HOMEOWNERS ASSOCIATION or their successors in interest. Spokane County and its authorized agents are hereby granted the right to ingress and egress to, over and from the drainage easement for the purposes of inspection and emergency maintenance of drainage facilities, if not properly maintained by the HOMEOWNERS ASSOCIATION or their successors in interest . Spokane County does not accept the responsibility to inspect or maintain the drainage facilities within the drainage easement, nor the responsibility for any damage whatsoever, including, but not limited to, inverse condemnation to any properties due to deficient construction and /or maintenance of the drainage pond and drainage courses. • Should the HOMEOWNERS ASSOCIATION be terminated for any reason, the successors in interest shall be the individual lot owners, or their successors in interest, who are members of the HOMEOWNERS ASSOCIATION at the time of said termination. • IN WITNESS WHEREOF, the undersigned has caused this instrument to be executed on this day of 1994. Alfons B. Renz Hilda E. Renz STATE OF WASHINGTON COUNTY OF SPOKANE ) es On this day personally appeared before me, Alfons B. Renz and Hilda E. Renz personally known to me to be the individuals who executed the forgoing instrument and acknowledged the said instrument to be the free and voluntary act and deed of said individual(s), for the uses and purposes therein mentioned. DATED this day of , 1994. IN WITNESS WHEREOF, the undersigned has caused this instrument to be executed on this day of R and T Corporation, a Washington Corporation By: STATE OF WASHINGTON COUNTY OF SPOKANE DATED this-- day of executed on the day of STATE OF WASHINGTON COUNTY OF SPOKANE DATED this )ss I certify that I know or have satisfactory evidence that Kenneth J. Tupper is the person who appeared before me, and said person acknowledged the he signed this instrument, on oath stated that he was authorized to execute the instrument and acknowledged it as the of R and T Corporation to be the free and voluntary act of such party for the uses and purposes mentioned in the instrument. T.D.C. INCORPORATED For Obligation to Construct By: )se Notary Public In and for the State of Washington. My Appointment Expires: , 1994. day of , 1994. 1994. Kenneth J. Tupper Ora 8•a4•94' Notary Public In and for the State of Washington. My Appointment Expires: IN WITNESS WHEREOF, the undersigned has caused this instrument to be 1994. Kenneth J. Tupper I certify that I know or have satisfactory evidence that Kenneth J. Tupper is the person who appeared before me, and said person acknowledged the he signed this instrument, on oath stated that he was authorized to execute the instrument and acknowledged it as the President of T.D.C. Incorporated to be the free and voluntary act of such party for the uses and purposes mentioned in the instrument. Notary Public In and for the State of Washington. My Appointment Expires: IN WITNESS WHEREOF, the undersigned has caused this instrument to be executed on the day of RIDGEMONT ESTATES NORTH 3RD & 4TH ADDITION HOMEOWNERS ASSOCIATION For Obligation to Maintain STATE OF WASHINGTON COUNTY OF SPOKANE File = => c: \wpwin\esm111684ofp.esm (DRAFT) By: )ss DATED this day of , 1994. 1994. Kenneth J. Tupper Ora 8•a4 I certify that I know or have satisfactory evidence that Kenneth J. Tupper is the person who appeared before me, and said person acknowledged the he signed this instrument, on oath stated that he was authorized to execute the instrument and acknowledged it as the President of RIDGEMONT ESTATES NORTH 3RD & 4TH ADDITION HOMEOWNERS ASSOCIATION to be the free and voluntary act of such party for the uses and purposes mentioned in the instrument. Notary Public In and for the State of Washington. My Appointment Expires: Elthil . paae 2 of 5 Order No.. '1W- 188569 DESCRI PTION: A drainaae PORd retention site easement over that portion of the Northeast cuarter of the Northwest cuarter and the Northwest quarter of the Northeast quarter of Section 25, Township 25 North, Ranae 44 East, W.M., being more particularly describer' as follows: BEGIN at a point that i South 89°16'42" East. a distance of 626.35 feet from the North quarter corner of said Section 25, said point being common to the North boundary of said Section 25 and the West boundary of Leo N. Cashatt and others, as established bv a survev Performed bv .;dams Encineerinc in 1976; thence along said Cashatt West boundary, the ' foliowinc two (2) courses, South 30'08'12" East, a distance of 152.25 feet; thence South 5G °2_ " _ �5" East - a distance of feet. 'f _5.00 thence -� South 52 °30'00" West a distance of 135.07 feet; thence South 30'22'0 a 42 feet; thence South 56'26'16" West, a East, a distance o' 119.42 _ of 40.06 feet; thence North 30 °22'00" West, a distance o: distance o_ - 116.74 feet: thence South 52 °38'00" West, a distance of 307.71 feet; thence South 50 °22'00" East, a distance of 151.82 feet; thence South 39 °26'16" West a distance of 40.00 feet; thence North 30'22'00" west_ a distance of 161.19 feet; thence South 43'39'33" West, a distance of feet; 349.81 feet: thence South 30°33'44" East, a distance of 1: :. =1 f - thence South 39'26'16" West, a distance of 40.00 feet; :hence North 50 °33'11" West, a distance_ of 203.47 feet: thence_ South _ 39'33" West_ a distance of 84.90 feet; thence South 7 °33'00" West, a distance of 144.00 feet; thence South 07 °35'00" West, a distance of 89.92 feet to the East line of the Future Plat of Ridaemont Estates North 3rd 2,dditlon; ::hence North 02 °51'52"' West. along said East line, a distance 213.39 fee= to a Joint on a nontanaent curve concave to the West . a aCius of 50.00 feet and a radial bea_ina . South 4 1 ° 22 East, said Point being on the Easterl line of the 'ut'..:re Plat of Ridcemont Estates North 4th, the next 2 courses alone said Easter Northerly and Northwesterly throuch central line; thence Northeasterly _ of _ 1 11 °08'Oi" an arc distance of 103.96 feet; thence North 16 °29'55 East, radial to said curve, a distance of 28.10 feet; East, 248.13 feet; thence North tierce North 50 " " °18 "'15" East, a distance of °00'94" East. a distance of 244.68 feet; thence North 76'30'08" East, a distance of 6 4.37 feet; thence North 54 °00'44 " East, a dlstanc of 136.55 feet; thence aorta o_ E North 2 °14' -9" East, a distance of 1 49.00 feet; � - thence North 26 °59'32" East, a distance of 29.57 feet to the South richt of wav (R;W) of 16th Avenue and a point on a curve concave tc the Northwest with a rad'Us of 495.72 feet and a radial bear ins of South -. :W, through a l0'0'_' -8" East, thence Northeasterly along said South , � centre= angle of 3 °15'02" an arc distance of .8.- n Feet; thence South _ 89'09'28" fast, 25.38 feet to the Point of Becinnina; Situate in the County of Spokane, State Of Washington; S P 0 K A N E OFFICE OF THE COUNTY ENGINEER Ronald C. Hormann, P.E., County Engineer Dennis M. Scott, P.E., Director Date: August 23, 1994 To: Ray Moon Right -of -Way Memorandum c From: Dean Franz, P.E. c Development Services Subject: Ridgemont Estates North 3rd S 4th Add. Drainage Easement (P -1684) C 0 U N T Y A DIVISION OF THE PUBLIC WORKS DEPARTMENT Attached are the following items, which you requested. • Title report of properties which will be encumbered by easement. • Name of Homeowner's Association. • Copy of front page of existing drainage easement, which will be eliminated by new easement. Please review the proposed new easement document which was provided to you earlier today. If there are any changes needed, please mark them on the document. Once your review is complete, I will give a copy to our attorney, Ron Arkills, for final input. Please do not request the signators to sign the document until our attorney is allowed to have input. If you need anything else please let me know. 1026 W. Broadway Ave. • Spokane, WA 99260 -0170 • (509) 456 -3600 FAX: (509) 324- 3476 TDD• (509) 324 -3166 VARIA;NCE BLDG T OTHER m / /6' 4- S o'.S T a-S . R 4 4 • PARCEL r V"5 Y LS y �7 Notice to Public #. COMMENTS /1 , , o /Y'?.-,.. kkpuinaum. :92 d AGREEMENT TO PAY FEES have been collected LEGAL DESCRSPTION of your access easement. LrO c r RiC: ^.[- of -Way Agent / / - e - % v APPLICANTS NAMF / n L) _ ' in e- t Ai n : As. MAILING ADDP ROAD NAME PHONE - WOW( 9 / /(n C) The following documents are needed before the Spokane County Engineer's Department can begin procesing your variance or building application as approved. (509) 156 -3600 RECORDED COPY OF DEED, DEED OF TRUST, contract or conveying instrument. These may be obtained from the County Auditor, Zad Hoar of the Courthouse. A LISTL•YG.OF NAMES of individuals who will be, signing the documents. These individual names• should appear as the person(s) legally sign their name. , / LCP Au r- (To /- .� i /n /. 1 / 1 L ` ' 1 n z • r --n-d t 11.c. ( A CURRENT ASSESSOR'S MAP which depicts the Location of your property. OWNERSHIP MICRO-RUN. These may be obtained from the County Assessors, ist floor. of the Courthouse. Sefferson entrance, Zad door on the let. The necessary documents will be prepared by the Engineer's Department, Right -of- -Way Section, upon provision of the information noted above. You will be notified when the documents are ready for signature. The documents may be sent to you. however, IT SHOULD BE NOTED THAT ALL SIGNATURES MUST BE NOTARIZED. The Engineer's Department does have notaries available if you choose :o sign the documents at our office. Please call when ready Please mail when ready Right- DC-Way t Lull! ?u r el . ,1 dL[_ L./ w Forward to you from n SC; Ac S P O IC A N EE OFFICE OF THE COUNT' ENGINEER Ronald C. Hormann, P.E., County Engineer Dennis M. Scott, P.E., Director Date: September 22, To: Memorandum 1994 Mike Dempsey Ron Arkills Prosecuting Attorney's Office A DIVISION OF THE PUBLIC WORKS DEPARTMENT From: Dean Franz Public Works Dept. Subject: Ridgemont Estates N. 3rd & 4th Addition Off -site Drainage Easement (P -1684) Co U N T Attached is the revised drainage easement document for your review. It was put on my desk this morning. I havn't had a chance to review it yet, however, I am giving you the copy so that the process can proceed at your office. Exhibit "A ", which contains two pages, does not have page numbering, which we briefly discussed. For the first page 1 had put at the top "page 1 of 2 ", and the second page was put "page 2 of 2." This was omitted from Dave Renz's office. Please provide a judgement on this matter. Dave asked me what procedure needs to be followed to rescind the recently recorded easement. Can you educate me on this procedure? Thanks for your help, and please call me when your review is complete. 1026 W. Broadway Ave. • Spokane, WA 99260 -0170 • (509) 456 -3600 FAX: (509) 324 -3478 TDD (509) 324 -3166 S P 0 K A N E DONALD C. BROCJCEIT PROSECUTLNG ATTORNEY OFFICE OF PROSECUTING ATTORNEY Stanley R. Schultz Attorney at Law Witherspoon, Kelley, Davenport & Toole 1100 U S Bank Building 422 West Riverside Spokane, WA 99201 -0390 September 21, 1994 Re: Drainage Easement Agreement for Ridgemont Estates Dear Stan: I just received a copy of your redraft of the above agreement, which had been executed by your clients and recorded with the County Auditor. This "agreement" will have to be rescinded because (1) it has not been signed by the County, (2) it contains some errors, and (3) after further reflection, County Engineering staff and myself have some additional changes that are important and should be incorporated in the agreement. We request the following revisions in your redraft: Paae 1. naraaraph 2. second line: after "Spokane County" insert "- -.and to the Ridgemont Estates North 3rd and 4th Additions Homeowners Association (hereinafter ""Homeowners Association ") -.." Paae 2. naraaraoh 3. last sentence : revise as follows: Criminal Division Caun v.City PuMm Safety Building S 1100 Mallon Avenue Spokane, TVA 90260 -0270 (5091456-3662 SCAN 272 -3662 "With the consent of Spokane County or at its request, the description of the Developed Property may be expanded to include newly platted or divided properties ( "additional properties") if (a) the developer of such additional properties has entered into a Civil Division W. 1115 Broadway Spokane, WA 99260.0270 (509) 456 -5764 SCAN 272 -5764 Family Law Department W. 601 NIallon Avenue Spokane. WA 99201 (509) 458 - SCAN 2722456 0 U N T Y County - City Public Safety Building W. 1100 Mallon Avenue Spokane, WA 99260 -0270 (509) 456 -3662 SCAN 272 -3662 JAMES P. EMAGIO Chief Deputy STEPHEN R. MATTHEWS Chief Crinunal Deputy Senior Attorneys Ronald P. Arkills Robert B. Binger Jennifer A. Boharski Michael C Dempsey John F. Driscoll D. Clinton Francis Garald A. Gesmger Kevin M. Korsmo James R. Sweetser Patna A. Thompson Deputies Danneue W. Allen Sarah A. 3eemer Mary Ann Brady Jack T. Brooks Susan C. Buerkens Darlene A. CTovan- Andersen Frank Chnstmf Tracy 5. Collins Carmela A. Conroy Paul G. Cornelius Dawn C. Cortez Carol 0. Davis Mary hl. Doran Dianne G. Dougherty John Grasso Edward D. Hay Arthur K. Hayashi Sandra L Johnston Carlin M. Jude Neil H. Korbas John T Kral' Debby J. Kurbitz Mark A. Latminger Suzanne Lamarma Mark E. Lindsey Carolyn G. Louthian Andrew J. Metes Michelle A. Miller David R Nehen Annette 5. Plese lViiiiam H. Reeves Martin D. Rollins Elizabeth L Schoedel Michelle A. Sotinsky Larry D Steinmetz Steven J. Tucker Stefanie waiter Stanley J. Wahz ❑ ❑ Fraud /Drugs Unit Jus enile Department N 721 Jefferson W. 1203 Mallon Avenue Spokane, WA 99260-0270 Spokane. WA 99260-0270 (509) 459.6416 SCAN 272.6416 (509)456.6046 SCAN 272-6046 Qr. Stan Schultz - 2 - September 21, 1994 written agreement with the entity responsible for operation, maintenance and repair of the drainage facilities pursuant to this agreement, (b) said agreement addresses payment of a pro rata share of the costs of operating, maintaining and repairing the facilities by the owners of such properties, in accordance with paragraph 5 below (c) said agreement has been approved as to form by the County and is fully executed and recorded before final plat approval, and (d) thirty days written notice has been provided by Spokane County to the owner of the property described in Exhibit "A" and to the entity responsible for operation and maintenance of the drainage facilities that such additional properties are being added to the Developed Property." Page 2. oaragraoh 5, first 4 lines: Delete and replace with the following: "The Homeowners Association shall be responsible for the operation, maintenance and repair of the drainage facilities located within the easement area, including but not limited to maintaining a cover..," Page 2, oaragraoh 5, last line: delete and replace with "...description of the Developed Property, the..." Page 3 oaragraoh 5 remainder of naragraoh: revise as follows: ..owners of said additional properties shall be required to reimburse the Homeowners Association for the cost of operation, maintenance and repair of said facilities on a pro rata basis. The pro rata annual reimbursement costs for such additional properties shall be determined as follows: Pro rata share = annual maintenance cost x F. F = number of lots added to the 8==v-4c8 area Developed ° - _ Property + (number of lots added to zervize area Deve opeoperty + number of lots in Ridgethont "Estates North 3rd and 4th Addition). Spokane County may, at its option and at any time hereafter, assume responsibility for operation, maintenance and repair of the drainage facilities and may Mr. Stan Schultz - 3 - September 21, 1994 levy::ski' EhargBS oii lotg53/4 . 'Ci :Ridgemont Estate`s North 3rd and 4th Additions and ' an an ?dds_t1oua1J propertke a to Athe'.Deveioped;Pr ©pert y for t he- 0 .pro rata share costs of 'such operation determined' as. followsr °. :. annua]: maintenance cost 4number -tf lots added -t Developed Property �- n riumbes- ;# of p ihts rn Ridgemont Es:tates'North 3rd an& 4 th - Add.taony �uC steal: l: be` c, a3lecC ° ed'`,ai?�;�en�.o "rcect<ki:.�5 akane ov Y. .. County in .th manner prided by Coun r esoluton.�or ordiriane f qr Cne a anPrx o£'stotm water n is srvi ee_A ,Pargs ; .. S ok anounty;3" «._., :.......M.<.....,:.,„ Page 3. oaraaraph 6 The Storm Water Utility County and is a division day we named it. first cantence• delete in its entirety. is not a separate legal entity from the of the public works department. I rue the Page 3, oaraaraph 6, next to last line: Revise "Exhibit "B "" to "Exhibit "A " ". Exhibit A: County Engineering schematic of the easement area as page 1 of enclosure). Also, we would like title report, since the same has sufficiency (see page 2 of enclosure). Exhibit B: Replace with the following: "Ridgemont Estates, Ridgemont Estates No. 2 and Ridgemont Estates No. 3" cc Ron Arkills Dean Franz Very truly yours, Michael C. Dempsey Deputy Prosecuting Attorney would like to include a 2 of this exhibit (see page to use the legal from the already been checked for I think you should also include a sentence that rescinds and terminates the document that was recorded. Please also put a proper signature block and attestation for approval by the Board of County Commissioners. After we have agreed on the final form of the agreement, County Engineering would like to take one last look at the document in its revised from before execution by the parties. * *** **«.«.** * ********* ****** **„ page 1 of 2 EXHIBIT "A" ** * * * * ** ** * ** ** * * ** * * * * * * * ** * ** ** A drainage pond retention site easement over that portion of the Northeast quarter of the Northwest quarter and the Northwest quarter of the Northeast quarter of Section 25, Township 25 North, Range 44 East, W.M., being more particularly described as follows: BEGIN at a point that is South 89 °16'42" East, a distance of 626.35 feet from the North quarter corner of said Section 25, said point being common to the North boundary of said Section 25 and the West boundary of Leo N. Cashatt and others, as established by a survey performed by Adams Engineering in 1976; thence along said Cashatt West boundary, the following two (2) 'courses, South 30 °08'12" East, a.distance of 152.25 feet; thence South 50 °22'25" East, a distance of 26.00 feet; thence South 52 °30'00" West a distance of 135.07 feet; thence South 30 °22'00" East, a distance of 119.42 feet; thence South 56 °26'16" West, a distance of 40.06 feet; thence North 30 °22'00" West, a distance of 116.74 feet; thence South 52 °38'00" West, a distance of 307.71 feet; thence South 50 °22'00" East, a distance of 151.82 feet; thence South 39 °26'16" West, a distance of 40.00 feet; thence North 50 °22'00" West, a distance of 161.19 feet; thence South 45 °39'33" West, a distance of 349.84 feet; thence South 50 °33'44" East, a distance of 199.11 feet; thence South 39 °26'16" West, a distance of 40.00 feet; thence North 50 °33'44" West, a distance of 203.47 feet; thence South 45 °39'33" West, a distance of 84.90 feet; thence South 76 °35'00" West, a distance of 144.00 feet; thence South 07 °35'00" West, a distance of 89.92 feet to the East line of the Future Plat of Ridgemont Estates North 3rd Addition; thence North 02 °51'52" West, along said East line, a distance of 215.89 feet to a point on a nontangent curve concave to the West with a radius of 50.00 feet and a radial bearing of South 44 °22'04" East, said point being on the Easterly line of the Future Plat of Ridgemont Estates North 4th, the next 2 courses along said Easterly line; thence Northeasterly, Northerly and Northwesterly through a central angle of 119 °08'01 ", an arc distance of 103.96 feet; thence North 16 °29'55" East, radial to said curve, a distance of 28.10 feet; thence North 56 °18'15" East, a distance of 248.44 feet; thence North 32 °00'54" East, a distance of 244.68 feet; thence North 76 °30'08" East, a distance of 154.57 feet; thence North 54 °00'44" East, a distance of 186.55 feet; thence North 62 °14'59" East, a distance of 149.00 feet; thence North 26 °59'32" East, a distance of 29.57 feet to the South right of way (R /W) of 16th Avenue and a point on a curve concave to the Northwest with a radius of 495.72 feet and a radial bearing_ of South 16 °02'48" East, thence Northeasterly along said South R /W, through a central angle of 3 °15'02 ", an arc distance of 28.12 feet; thence South 89 °09'28" East, 25.38 feet to the Point of Beginning; 45255.9065 Situate in the County of Spokane, State of Washington; FAX COVER SHEET :Spokane County Engineer's Office - Third Floor Fax # 324 -3478 1026 W I3ROADWAY SPOKANE, WA 99260 - PI IONE # (509) 456 -3600 DATE: Se/ �.) /994 FAX #: 9� Q - -a5O TO: „Java n z COMPANY: C CITY / STATE: NUMBER OF PAGES (INCLUDING COVER SHEET): FROM: MESSAGE /SPECIAL INSTRUCTION: d �j-/ / K,aton s,� ESTCk__6 Aor d T'/r`"°� Set /o7#ar 4 / Ai w S , - S Shy -f-L r51 at, 9/2 V94 June 20, 1994 Dave Renz The Tupper Group 12929 East Sprague Spokane, WA 99216 Subject: Ridgemont Estates North 3rd & 4th Add. Ownership & Maintenance of Drainage Ponds Spokane County No. P- 16848. P -1684C Dear Dave: • S P O EC A N E OFFICE OF THE COUNTY ENGINEER • C O U 1V T A DIVISION OF THE PUBLIC WORKS DEPARTMENT Ronald C. Hormann, P.E., County Engineer Dennis M. Scott, P.E., Director The issue regarding ownership and maintenance of the storm drainage ponds, associated with these two plats, needs to be clarified. The first pond in question is currently a natural low -area, located within an open field, and is serving as a regional retention facility for the Ridgemont area. This retention site is located south and adjacent to the intersection of 16th Ave & Shamrock Rd. It is within an existing drainage easement dedicated to Spokane County, covering approximately 8.3 acres. and is recorded under Auditor's File No. 8004140245. This easement will need to be replaced with a new easement which shall encompass the ponding area generated from a 100 -yr, 24 hr storm event. Also, the pond needs to be placed within a separate tract and included in the plat boundary. The second pond is a proposed facility which will be located between the proposed streets of Renz Dr. & Radco Dr. The pond will be located within the plat of Ridgemont Estates North 3rd Addition. This is labeled Pond '3A' in the plans, an it is shown to be placed within a separate tract labeled Utility Lot "B ". There is no maintenance agreement in place for the Ridgemont area, which would serve as a mechanism for payment to compensate Spokane County to maintain the drainage ponds. Therefore, these two ponds will need to be owned and maintained by a Homeowner's Association, formed to encompass Ridgemont Estates N. 3rd & 4th Addition: with an easement dedicated to Spokane County for emergency /access purposes. The Homeowner's Assoc. needs to be formed prior to recording of the final plat documents. Provide a copy of the proposed Homeowner's Assoc. covenant's and restrictions for our review and input. Also, a written maintenance program needs to be prepared by your engineer and referenced in the Homeowner's Assoc. covenants. 1026 W. Broadway Ave. • Spokane, WA 99260 -0170 • (509) 456 -3600 FAX: (509) 324 -343 TDD: (509) 324 -3166 „ttidgemont Estates North 3ru & 4th Add. (P -1684) Letter to Dave Rena. on 6/20/94 Page 2 Please note that the review of the road and drainage plans and calculations have been placed "on- hold” until your outstanding past -due account with the County is paid. If you have any questions feel free to contact me at 456 -3600. Sincerely, Spokane County Engineers Dean Franz, P.E. Plans Review Engineer cc: Brenda Sims -- Stormwater Utility Dept. John Pederson -- Planning Dept. File PREPARED FOR: T.D.C. INC. ATTN: DAVE REUG E. 12929 SPRAGUE TRANSAMERICA TITLE INSURANCE COMPANY 720 NORTH ARGONNE SPOKANE. WASHINGTON 99212 (509) 922-2222/FAX 925 -1519 LIMITED LIABILITY CERTIFICATE page 1 of 5 Order No.: Charge: Tax: Total: RE: RENT, & R & T INC. This is a report as of August 9, 1994, at 8:00 A.M., coverinc the property hereinafter described. The information contained herein is made solely for the purpose of determininc the status of the property herein, is restricted to the use of the addressee, and is not to be used as a basis for closing any transaction affecting title to said property. Liability is limited to the charge made for this certificate. RECEIVED AU6 1 6 1394 SPOKANE COUNT ENGINEER 7• Rot_ A.,u5 /Ce a pect A_ raft �NJ- 6G, N.rw MW- 188569M 5175.00 14.00 5189.00 ** * * * * ** ** * * ** *** *xww + * ** * * * * * ** i EXHIBIT "A" 45255.9065 - *** * * * * * ** * * * *. * * *- * * ** * * ** * * * * * ** A 4-a-ir,a.s �J.; .�h.. oU� ., .. & ...u a portion of the Northeast quarter of the Northwest quarter and the Northwest quarter of the Northeast quarter of Section 25, Township 25 North, Range 44 East, W.M., being more particularly described as follows: BEGIN at a point that is South 89 °16'42" East, a distance of 626.35 feet from the North quarter corner of said Section 25, said point being common to the North boundary of said Section 25 and the West boundary of Leo N. Cashatt and others, as established by a survey performed by Adams Engineering in 1976; thence along said Cashatt West boundary, the following two (2) 'courses, South 30 °08'12" East, a_di. stance of 152.25 feet; thence South 50 °22'25" East, a distance of 26.00 feet; thence South 52°30'00" West a'distance of.135.07 feet; thence South 30 °22'00" East, a distance of 119'.42 feet;, thence 'South 56'26'16" West, a distance of 40.06 feet; thence North 30 °22'00" West, a distance of 116.74 feet; thence South 52 °38'00" West, a distance of 307.71 feet;. thence South 50 °22'00" East, a distance of 151.82 feet; thence South 39 °26'16" West, a distance of 40.00 feet; thence North 50 °22'00" West, a distance of 161.19 feet; thence South 45 °39'33" west, a distance of 349.84 feet; thence South 50 °33'44" East, a distance of 199.11 feet; thence South 39 °26'16" ;Vest, a distance of 40.00 feet; thence North 50 °33'44" West, a distance of 203.47 feet; thence South 45 °39'33" West. a distance of 84.90 feet; thence South 76 °35'00" West, a distance of 144.00 feet; thence South 07 °35'00" West, a distance of 89.92 feet to the East line of r.he Future Plat of Ridaemont: Estates North 3rd Addition; thence North 02 °51'52" West, along said East line. a distance of 215.89 feet to a point on a nontanaent curve concave to the West with a radius of 50.00 feet and a radial bearing of South 44 °22'04" E•:sc, said point bei:.❑ on the Easterly 1)ne of the Future Plat: of Ridgemont Estates North 4th, the next 2 courses ai:'ng. said Easterly line;. thence Northeasterly, Northerly and Northwesterly through .:c central angle of 119 °08'01 ", an arc distance of. 103.96 feet; thence North 16 °29'55" East, radial to -said curve, a distance of 28.10 feet; thence North 56'18'15" Fast, a distance of 248.44 feet; thence North 32 °00'54" East, a distance of 244.68 feet; thence North 76 °30'08" East, a distance of 154.57 feet; thence North 54 °00'44" East, a distance of 186.55 feet;' thence North 62 °14'59" East, a distance of 149.00 feet; thence North 26 °59'32" East, a distance of 29.57 feet to the youth right of way (R /W) of 16tn Avenue and a point on a curve concave to the Northwest with a radius of 495.72 feet and a radial bearing of South 16 °02'48" East, thence Northeasterly along said South R /W, through a central angle of 3 °15'02 ", an arc distance of 28.12 feet; thence South 89 °69'28" East, 25.38 feet to the Point of Beginning; Situate in the County of Spokane, State of Washington; I *** * * * * *'*t * *** * * * * * * *** * * ****s *** ' t EXHIBIT "A" 4. 45255.9065 - ** * * ** * * * ** * * * * * ** * **** * * * ** *** ** A t._ rat. 7 portion - of the ft _Northeast quarter of the Northwest quarter and the Northwest quarter / of the Northeast quarter of Section 25, Township 25 North, Range 44 East, W.M., being more particularly described as follows: t3EGIN at a point that is South 89 °16'42" East, a distance of 626.35 feet from the North quarter corner of said Section 25, said point being common to boundary of said Section 25 and the West boundary of Leo N. Cashatt'and others, as established by a survey performed by Adams Engineering in 1976; thence along f:aid Cashatt west boundary, the following two (2) 'courses, South 30'08'12" East, a.di.stance of 152.25 feet; thence South 50 °22'25" East, a distance of 26.00 feet; thence South 52'30'00' West a distance of.135.07 feet; thence South 30 °22'00" East, a distance of 119.42 feet; thence South. 56'26'16" West, a distance of 40.06 feet; thence North 30 °22'00" West, a distance of 116.74 feet; thence South 52 °38'00" West, a distance of 307.71 feet; thence South 50 °22'00" East, a distance of 151.82 feet; thence South 39 °26'16" West, a distance of 40.00 feet; thence North 50'22'00" West, a distance of 161.19 feet; thence South 45 °39'33" west, a distance of 349.84 feet: thence South 50 °33'44" East, a distance of 199.11 feet; thence South 39 °26'16" West, a distance of 40,00 feet; thence North 50 °33'44" West, a distance of 203.47 feet; thence South 45 °39'33" West, a distance of 84.90 feet; thence South 76 °35'00" West, a distance of 144.00 feet; thence South 07 °35'00" West, a distance of 89.92 feet to the East line of the Future Plat of Ridccmont: Estates North 3rd Addition; thence North 02 °51'52" West, along said East line, a distance of 215.89 feet to a point on a nontangent curve concave to the West with a radius of 50.00 feet and a radial bearing of South 44 °22'04" L•._.st, said point bei;.g on the Easterly 11.ne of the Future Pflt of Ridgemont Estates North 4th, the next 2 courses along said Easterly line;. thence Northeasterly, Northerly and Northwesterly through .a central angle of 119 °.08'01 "; an arc distance of 103.96 feet; thence. North 16 °29'55" East, radial to_said curve, a distance of 28.10 feet; thence North 56'18'15" Fast, a distance of 248.44 feet; thence North 32 °00'54" East, a distance of 244.68 feet; thence North 76 °30'08" East, a distance of 154.57 feet.; thence North 54 °00'44" East, a distance of 186.55 feet;' thence North 62 °14'59" East, a distance of 149.00 feet; thence North 26'59'32" East, a distance of 29.57 feet to the south right of way (R /W) of 16tH Avenue and a point on a curve concave to the Northwest with a radius of 495.72 feet and a radial bearing_ of South 16 °02'48" East, thence Northeasterly along said South R /W, through a central angle of 3 °15'02 ", an arc distance of 28.12 feet; thence South 89°C9'28" East, 25.38 feet to the Point of Beginning; Situate in the County of Spokane, State of Washington; l %ES_ED IN: R & T, INC., a Washington Corporation, as to a portion; and ALFONS B. RENZ, also shown of record as A.B. RENZ and ALFONS RENZ and HILDA E. RENZ, also shown of record as HILDA RENZ and EVA RENZ, husband and wife, as to a portion. EXCEPTIONS: Order No.: M[J- 1 88569 1. General taxes, as follows, together with interest, penalty and statutory foreclosure costs, if any, after delinquency: (1st half delinquent on May 1; 2nd half delinquent on November 1) Tax account No. Year amount Billed Amount Paid Principal Balance 45255.9065 1994 $4,104.88 S4,104.88 $0.00 (Covers property herein described and other Property) 2. Assessments levied by Spokane County for Storm Water, together with interest, penalt and statutory foreclosure costs, if any, after delinquency: llst half delinquent on Mac 1; 2nd half delinquent on November 1) Tax account No. Year Amount Billed Amount Paid Principal Balance 45255.9065 1994 S10.00 BETWEEN: AND: DATED: RECORDED: RECORDING NO.: REGARDING: AFFECTS: page 3 of 3 510.00 $0.00 ?. Anv unpaid assessments or charges, and liability for further assessments or charges by Vera Irrigation District No. 13. 4. Liability to future charges by Spokane County for Storm Water service. 3 LETTER OF COMMITMENT AND THE TERMS AND CONDITIONS THEREOF: Alfons 3. Renz and Eva Renz Spokane County Commissioners October 18, 1974 7410180104 Not build on property South of Rotchford Acre Tracts in said Section 25 until said property is platted This and other property 6. .AGREEMENT AND THE TERMS AND CONDITIONS THEREOF: BETWEEN: AND: DATED: RECORDED: RECORDING NO.: REGARDING: AREA AFFECTED: 7 AGREEMENT AND THE TERMS AND CONDITIONS THEREOF: BETWEEN: AND: DATED: RECORDED: RECORDING NO.: REGARDING: PURPOSE: AREA AFFECTED: DATED: RECORDED: RECORDING NO.: page 4 of 5 Order No.: MW- 188569 Alphons B. Renz and Hilda E. Renz, Indemnj tors Spokane County, Indemnitee December 10, 1975 December 12, 1975 7512120' To indemnify and release the indemnitee from all actions attributable to the indemnitee locating, establishing, constructing, operating, maintaining and all matters incidental thereto, the drainage control system in conjunction with Ridgemont Estates. NW1 /4 of Sec. 25, lying NWIy of Ridgemont Estates. Spokane County_, a political subdivision of the State of Washincton Sullivan South Enterprises, a Washington general partnership, and Alfons B. Renz and Hilda E. Renz, husband and wife September 15, 1988 September 21, 1988 8809210088 Sewerage system 8. STORM DRAINAGE EASEMENT AND RIGHT -OF -WAY AGREEMENT AND THE TERMS AND CONDITIONS THEREOF: BETWEEN: AND: Alfons B. Renz and Hilda E. Renz, husband and wife Spokane County a municipal corporation Storm Drainage This and other property April 14, 1980 8004140245 Order No.: MW- 188509 9. Potential liabilitY for assessments levied by Spokane Count_. Utility Department for the Aquifer Protection Area. To verify, call 458 -2538. In order to make payment, account number is necessarv. sac page 5 of 5 TRANSAMERICA TITLE INSURANCE COMPANY By 0. L(.,.P(.1 - L: - cc- ( Maureen Wild, Title Officer 7 .11018010.1 TO: Spokane County Commissioners Spokane County Courthouse Spokane,washington 99201 2O5 AV 871 fitI J on RECGRGIO E. CCUCSi0ICOUnty eroaecutln Attorney's OffIre LETTER of COtUIITtENT Ocf 10 11 25 fall 1 1 1 1 I V.6al l : i i. 1 :11 a Gii Vll C Req. courthouoo xxx GEIITI.EIIEII: He are informed that the owners of certain real property which is described In Schedule "A" attached Lo this letter, are submitting for approval a plat for that property in which proposed plat the said property is described as "Rotchford Acre Tracts ". A copy of the proposed plat has been examined personally by the undersigned. We are the owners of the property which is loc.rted immediately adjacent on the south to the property described in Schedule "h" (Rotchford Acre Tracts). The description of our property is set forth in Schedule "R" attached. The undersigned, to accomodate the platting of the "Rotchford Acre Tracts" property, has heretofor delivered to Spokane County a deed for property to be used an a roadway which conveyance covers property described in Schedule "C" attached. It Is recognized that the "Rotchford Acre Tracts" plot will not be approved without the undersigned having accepted the commitment that no part of their property described In Schedule "0" which fronts on the. County road (running east and west) which is adjacent to said property on the north, shall be used as building sites without approval of Spokane County having first been obtained in writing or until a plat. for said property (Schedule "R ") or some part thereof adjacent to said roadway shall have been approved by the County of Spokane. Now therefore, the undersigned, having recognized benefits which will accrue to them and their property as a result of the platting of "Ratchford Acre 'Tracts" do hereby calve a commitment to the County of Spokane that, if the plat tor Acre Tracts" is approved, they, their heirs, or successors in ownership will not permit any part of their property described in Schedule "9" which fronts on the roadway referred to aline, of which the property described in Schedule "C" is the south one half thereof, to be used as a building site unless and until a plat for said adjacent property shall have been approved or until consent for the use thereof for building sites shall have been otherwise approved In writing by the County of Spokane. It is agreed that the commitment made by the undersigned, as is herein defined, shall run with tke lard described in Schedule '6". i YS. Eva k 1r.` ..c''_ SUNSCPJO.FD a d S1.'ONN to before me jyl ?s -;,. >�+ r_�, 1174 ccep ed an aoprovet for 44W 4444r 1- COUNTY OF SPOKANE ii'y Tl+bllc ' n. _, t..e State Uas hlnct an, res101 at Spokane of W . C 11 RISTEGSI:iJ , , AlT � ona R. Rent 209 - - VED A5 TO "OCli X1111 frG . ,... d . .4,..7,:,,:..:..„. . .:.:: . „cc__ ss: '-' '6717. cr.l_n no.. -ec r.nC.:' 11 l :: :qi, School 1 oei -.r :let!' line of i•___l,. feat northwost 2i °S5' co oc :or ...C^ -hm. ^. L3/ !0 ft,:J ri 151 ] / t�,_t L amecer, :33 ?: in in et: direction 4:7 `:°t 1: ' ,no , ein: norm li,se c: sa :.: ' : 19j P line i n 0 3nip ti5 h]r ' ,. 25 ?.a:' -E • ' :: I_:. In'dian in the he e - a.recrc :L:r Winhe (iYV_tL-.�W f d ,4. ---1N en..— . J. irvnJ..0 .. r r.o, •I Avg l ▪ Y.. >n .. , ..r...r... u l... 1.11 .-. P 1. . ......_ : .. 1 4 ,.1 • ,� 1. ,::. •_ r t. •• • h. ..nh^. 4 , ,z ..i.h .' . :.-• • ' l•l' .Ih .. . .. , 1..1. '14 , n. ..3.1,x1 .. : :: 1:11• : ; • "111 I.. r h. ti n c.. .. lit .. u.,,.n ...• • it n1,, r ,. 1409 o- ',.. i . arle. ..,u .I. .,. ..- o ..I.,.._i.. -.^. R. 209 ref 873 Y X 9,3° C33 /) I / X� .� Y • • TEL 209 DA 6 6 r(w S "Z 1 1 1 7-, J / 9 8 "(k ,:I 209 A skip of land lying in the r'V 1/4 and the NE 1/4 of Section 75, la..nsidp 25 Hodh, Range 44 toss, 'n, M., Spokane County, V'asking :on, deter il,rd es lol lows: Beginning cl o point on the north line of, Id id id,V 1r4 v.hicl- beo'. 529 T, !/ /Q 20.00 feel Isom the norlh.,ml comer of void NW 1:4; thence Snails, along the cost right - of -eroy line o f Sul! ;von Road, 30. GO feel, Ike,ae 559'27'17 "E, on a line which is 30 feel southerly seas, ed at right cnglcs end parallel to the north line of wit PPN 1/4, 2610.17 feet; thence S09 ° 16'44 "E, on o line ..■i:h is 30 feet southerly measured et right angles 0114 porall01 to tie north Ilse of said HE 1/4, 431.42 feet la the point of curve of n 495 70 feet rodihn curve to Iho hell; thence along the arc of said curve ro the left, 177.74 feet, O.0ug6 o ccutml origin of 20 ° 02'06" to an intersection wills the north line of said HE 1 /4; :hence along the north line al said Section 25, Nq9 °l o'14"I", x01.23 Icat and 1109 ° 27'17 "W, 2510.52 feet 1° Ilse ',oho of bc;irn;ng. S g .Ju IRL,l:..0 . :uu :I L" ail 'A v :nr. tr:a: fri P,t; I :IEE :UI ITY AGREEMENT made :and entered into by and ':.; .7c/ d /20 c) INDEMNITY AGREEMENT t•t::een Alphone D. Benz and Kilda E. Rena, husband and wife, reoldl at South 2)09 Sullivan Road, 'ieradale, Washington 99037, ae re_na!te :- referred to as the " Indemnitors' end Spokane County, a political subdlvlelon of the State of Washington, Laving o1'fic ca for the transac t bon cf bual no ss as test 1116 Broadway. Spokane, Washington 99201, hereinafter referred to ae the "Indemnitce, Jointly hereinafter referred to along with the IndennIcors as the "Parties ". !i 1 TM ES 3 E T li : WHEREAS, the Board of County Commissioners of Spokane County ::es the care of County property and the management of County funds; and ;Ii6REAS, the Board of County Commissioners of Spokane County pursuant to the Revised Code of Bodkingcon, Chapter 5 ?.17 (Plats—Subdivisions—Dedications) in approving plats may require conditions therein for the health, safety, and welfare of the public; and WHEREAS, applicable deportmena within Spokane County have approved a drainage control system In conjunction with Rena suhdivl alon, to be recorded as Rldgemont Estates, and designated as PE 963 by appropriate County departments; and IiIIEREAC, for the correct operation of said drainage control system various easements on properties ownaC by t!ha Indemnitors herelnabo.e were obtained; and WHEREAS, in conjunctiea with easements granted by the lndcrr.icors here lnabove, the parties hereto deal re to exacate an agreement releasing the lndemnitee from any end all losses •.. n. L Leo, L: b e , .., '7 E .3t1 PIt( 16'31 to the property, both real and personal, owned by the Icdemnitora which may bo damaged or Injured in anyway as a result or tho fndemaltte maintaining any drainage control systems on the Rene Subdivision, to be recorded as Ridge -,one Estates, or the _rdemnitora' property adjacent thereto; NOW, THEREFORE, In consideration of 11.00 and other good and valuable consideration, receipt of which in hereby asknow1_dged, it Is hereby agreed: CECTIOII 1 -- t.IA0ILITY, LOSS OR DAMAGE The Indemnitors Undertake to indemnity release the Indemaitee Rom any and all actions, demands, coats, expensoo, compensation, and all claims of every kind or nature whatsoever f/ k: to their person or property (real and persona_) Including inverse condemnation /arising out of or incident to or attributable to the Indemtltee locating, establishing, construct- ing, operating, maintaining, repairing, and ell matters incidental thereto, the drainage control ayatem In conjunction with Rent Subdivision a /k /a RLdgemont Zatates. SECTION 2 -- DESCRIPTI0:I OF REAL PROPERTY T.1 ;e real property, including all encumbrances attached and located thereon, which is owned by the Indemnitors, and which is the subject of this indemnity agreement Is described as follows: The I11! 1/4 of Section 25. T. 25:7.. R.IIC E.W.N. ETEh any lend lying Southeasterly of the • ` orthgeaterly lira of Ridgemont Estates. C - 2 SECTION 3 -- PUN WITH TIIE LAND This indemnity agreement shall run with the land heroin above described, and shall be binding on end'shall inure to the benefit of the parties hereto, their heirs, auccessors, or aualg :u. ATTEST: VERNON/12 0l!LAI19 Cler /f the Beard Deputy STATE OF WASHINGTON) COUNTY OF SPOKANE) STATE OF CASIIIIIt:0n) 1 ss. 99 / L CC rlof 4 -- EMIRS ACR.Br_:uuT Thin indemnity agreement contains tho entire agreement bcLJaell tIlo par Lleb hasolo and Ulu to fine Oro C OEM raulu] 1 COO not merely a recital. The undersigned Inder.,nitors state that they have care- fully read the foregoing indemnity agreement, and know the con- tents thereof, and they have signed the same as [heir own free ante. IU WITNESS WHEREOF, the parties hereto have cause: this agreement to be executed on the ° I day of 11 ;1 / , 1975. I:IDEIIIITORS 11IDEMIIITEE • SPOKANE COUSTY, a municipal corporation BOARD OF COUNTY COIC45SI0!!ERS /� /i‘,.-1 -l., o'er 41 1 . 250 tar, 1282 17: ,c On this day personally appeared before me A1fons D. Renz and Ill ldn C. Renz, husband and wife, to mn known to be tho individuals deacrlbcd in and who executed the within and foi going instrument, and acknowledged that they signed the sans their free and voluntary act and decd, for the uses and pures therein mentioned. GIVEN under my hand and official seal this //(17:1:Y.: 7 )9 e - ..,.C..— , 1975. / of /d Not y P'ub is inland for the.Scace:.:? ashingcon, residing at SccS sane u: 230 fll11263 r33 -o335 Page - 1 68(1921111188 994 flit 1133 W 1 T 11 E 5 5 E T 11: ci/`f t SP old_ .Fd.00 ha 5tr 11 9 21 AN '0 M ItII.I.•IL 'lMl'I._ ' A.'nl.nl SPOKANE COUNTY SEWERAGE AGREEMENT • Sw 1N'. i•:aal 1, M•gl. VW li 'll SAWS(7tI THIS AGREEIIE1IT, made and entered into the J 44 day of •��f /A... ('. r.. 1988, by and between SPOKAIIE COUIrT'(, a political subdivision of the State of Washington, having offices for the transaction of business at West 1116 Broadway Avenue, Spokane, Washington, 99260, hereafter referred as the "County ", and SULLIVAN SOUTH EIITERPRISES, a Washington general partnership, having offices for the transaction of business at f_r;yjj 1 )_ , Spokane, Washington, 99)/4, and ALFOl1S U. REM'(, AND 111tIA E. RE112, husband and wife, South 2205 Carnine Court, Ver ado lc, Washington, 99077, hereinafter referred to as the "Owners ", jointly referred to, as the "Parties ". WHEREAS, pursuant to the provisions of Lbe Revised Code of Washington, Section 76.12.120(6), the Board of County Commis- sioners of Spokane County, has the care of County property and the management of County funds and business; and WHEREAS, pursuant 'to the provisions of Chapter 36.94 RCW, Spokane County has the ability to construct, operate, and maintain a system of sewerage within Spokane County consistent with the adopted Comprehensive Waste Water Management Plan; and WHEREAS, owners are the legal owuets of certain real estate located at the northeast corner of Sullivan Road and 24th Avenue, Spokane County, as more particularly described in Attachment "A ", attached hereto and Incorporated by reference herein, and hereinafter referred to as the "Property "; and WHEREAS, Owners have made application for a preliminary plat of the Property, to be known as Itidgemnut Estates Fourth Addition, and are desirous of sulxllviding the Property with the availability to connect: to the County's general scwet aqc systems; and WHEREAS, the County Is desirous of extending a system of sewerage from Sullivan Road and 24th Avenue through the Property, to the Timbcrlane and Ridgemont Subdivisions, for the purpose of connecting said subdivisions to the County's general' sewerage system: and WHEREAS, Owners are willing to provide the County with perpetual easements through the Property, In an alignment acceptable to Owners and the County Utilities Depat tment, and with appropriate access thereto, In order to allow for Installation of .II. 994 Erct 1134 a Sewerage system through the Property; and the County Is willing to make said sewerage system available for connection to future lots within the Property, in a manner consistent with Owners' subdivision plans, upon certain terms and condition. 110W, THEREFORE, for and in consideration of the mutual promises set forth hereinafter, the Parties hereto mutually agree as follows: Section 1: PURPOSE The County is desirous of constructing a sewerage system, hereinafter refet red to as the "Facilities ", through the property, which Facilities will be made available to provide sanitary sewer service to lots within the Property when It is subdivided, as well as connecting the adjacent and existing Timber lane and Ridgcmont subdivisions to the County's general sewerage. system. Owners are willing to grant to the County perpetual casements, free of encumbrances and with appropriate access, running through the Properly in an alignment acceptable to the County, In considera- tion of the County paying all costs for the design and construc- tion of such Facilities. Owners and their successors hereby acknowledge an obligation to pay chc County's General Facilities Charge ( "GEC "), monthly set vice charges, and an In Lien of Assessment charge (ILA), as specified herein, upon connection of the Ptoperty, or future lots therein, to the Facilities. It is the intent of this Agreement to reduce to writing the Patties' agreement with respect to the conveyance of easements to the County, the design and construction of the Facilities, and related matters. Section 2: CAPITAL CONSTRUCTIO11 The County shall he responsible for the design and construc- tion of the Facilities, genetally described as B ", 10" and 12" sanitary sewer pipe, and necessary appurtenances thereto. The Facilities ate deemed to be a benefit to the public. T'he design and construction of the Facilities will be In acem dance with all applicable Federal, Slate and Local laws, ordinances, and regulations. The County shall install "'LS" at appropriate locations within the Facilities designated by Owners; however, the County shall not be obl lgated to install side sewer connection lines from the "'Fs" to individual lots, which shall be the Owners' responsibility to install. All manholes Installed within the Facilities shall be designed and constructed to Include a one foot 11.'1 concrete ring section in order to facilitate adjustment of the manholes to a pr opet elevation at such time as roads are constructed within the Property- Page - 2 Owners agree to grant to the Comity perpetual casements In the property. free of any enccnbranccs, along with temporary access easements thereto, all as specifically indicated on Attachment "B ", attached hereto and Incorporated by reference het tin. Owners agree, within ten (10) days of written request by the County, to execute any and all necessary perpetual easemen t( s), temporary construction easement permits, access easements, or any other documents required of Owners under the terms of this Agreement. Only the Owners of the Property, or subsequent owners, and their successors, assigns or heirs, shall be permitted or author- ized undo' this Agreement. to tap Into or use the Facilities. Owners shall be responsible for the design and construction of any oche! facilities on the Property, other than the Facilities to be constructed by the County as described herein, that may be necessary le order to use or connect to the Facilities. In conjunction with the subdividing of the Property. As owner of the Facilities, the County may allow, at its sole dlsctction, other persons, firms or corporations outside the Property to tap into or use the Facilities. Additionally, as owner, the County will be responsible for maintenance and operation of the Fac l 1 L ties once constructed and accepted by the County. All users of the Facilities shall pay a monthly Main- tenance and Operation Fee as established by the Board of County Commissioners. Section 4: PAYMENT OF GFC AIID ILA This section shall apply only to those residential lots which result from approved subdivision of the Property. and which are adjacent co the Facilities and connectable by side sewer thereto. The owner of each lot at the time of hook -up to the County's general sewerage system shall pay the County's General Facilities Charge (GFC) that Is current at that time, reduced by any County participation moneys then applicable to reduce said charge (the present GFC amount equals $710.00 for residential propcttles, currently reduced by a forty percent 1401) County subsidy, leaving $462.00 payable by the property owner). Each lot owner at the time of hook -up shall also pay an In Lieu of Assessment charge (ILA). This charge is deemed equivalent to the special benefit that the County's sewerage system is determined to provide to parcels of land within lim most recent r County ULID, reduced by applicable County participation moneys. Page - I i iil . . 994 P: 1135 Section 3: USE OF COIISTRIICTED SDDDI'JISTOII SEWER FACILITY ;III 094 ME 1136 Under this Agreement, the ILA payable at the time of hook -up shall be permanently fixed at $1,500.00 (the special benefit for residential parcels within a ULID is currently $2,500.00, which amount Is currently reduced by a forty percent (401) County subsidy, leaving a balance of $1,500.00 payable). Each lot within the Pi opet ty connecting directly, or indirectly, to the Facilities shall receive a credit of $100.00 against the 11.A amount at the time of hook -up. This ct edit given by the County is In consideration of Owners' granting to the County perpetual easements at the east and west terminus of the East -West Sewer line easements, as indicated on Attachment "B ", the loss of crop revenues to Owners, engineering expenses previously incurred by Owners, the nuisance of the sewer line passing through the Property prior to subdivision and the reduction in value of certain private lots within the Property due to the County easements. A further credit of $500.00 shall be allowed against. the ILA to each lot owner at the time of hook-up to compensate for the County's not installing side sewer lines connecting the "Ts" to Individual lots, as would be the case if the County was installing a BUD sewerage system (the amount of this additional ct edit amount Is based upon the average cost of installing a side sewer connection, estimated as approximately $500.00, from bids received recently). The GFC applicable under County ordinance or resolution at the time of hook -up of an individual lot shall be the amount payable, less any County participation moneys applicable to reduce said amounts at the time of Look -up. The GFC amount may increase or change from present figures due to periodic adjustments by the Comity, and the level of applicable participation moneys may also be reduced or change according to County policy. The combined $1200.00 credit allowed future lot owners shall remain constant, as will the ILA amount. Section 5: COMPLIANCE WITH LAWS The Parties hereto specifically agree to oh::etve all fe,letal, state and local laws, ordinances and tegolatlons, including, but not necessarily limited to, chapter 49.60 RCW, to the extent that they may have any bearing on either providing any money under the terms of this Agreement at the services actually provided under the terms of this Agreement. Section 6: MODIFICATIO11 No modification or amendment of this Agreement shall he valid unlit the same is reduced to writing and executed with the same formalities as this present Agreement. Page - 4 Section 7: VENUE STIPULATION This Agreement has and shall be construed as having been made and delivered In the State of Washington, and the laws of the State of Washington shall be applicable to its construction and enforcement. Any action at law, suit in equity or judicial proceeding for the enforcement of Oils Agreement or any 'provision hereto shall be Instituted only in cow Ls of competent jurisdic- tion within Spokane County, Washington. Section 8: WAIVER No officer, employee, agent or othetwise of the County has the power, right or authority to waive any of the conditions or provisions to this Agreement. No waiver of any breach of this Agreement shall be held to be a waiver of any other or subsequent breach. All remedies afforded in this Ayr cement or at law shall be taken and construed as cumulative, that Is, In addition to every ocher remedy provided herein or by law. Failure of the County co enforce at any time any of the provisions of thls Agreement or to require at any time performance by the Contractor of any pt ovl lion hereof shall in no way be construed to be a waiver of such provisions, nor in any way affect the validity of this Agreement or any part hereof, or the right of the County to hereafter enforce each and every such provision. Section 9: ALL WRITIIIGS COIITAIRED IIEREIII This Agreement contains all the terms and conditions agreed upon by the Parties. no other understandings, °t at or otherwise, regarding the subject matter of this Agreement shall be deemed co exist et to hind any of the Parcles hereto. Owners have rend and understand all of this Agreement, and now state that no reptesen- Cation, pr aml se or agreement not expressed in this Agreement has been made to induce Owners to execute the same. Section 10: TERDI IIA•1' 1011 The County shall have no obligation of any kind or nature whatsoever to either design or construct the Facilities described herelnahove until Owners have granted to the County that right -of- way and /or perpetual easements and /or construction easement(s) as proved for hereinabove. Subsequent to the granting of such right -of -way, perpetual easement(s), and /ot construction ease - mantis), respectively, neither Party may terminate this Agreement for any reason whatsoever. • Section 11: TIDE IS OF TUE ESSENCE Time Is of the essence of this Agreement. If either Patty • shall fail to perform the Agreement on his part to be performed, Page - 5 994 t•.ff 1137 at the time fixed for performance, the other Party may exercise any right as proved for herein. Section 12: RECORDIIIG This Agreement, upon execution by both Parties, shall be recorded in the Spokane County Auditor's Office. The provisions within this Agteeaneut shall tun wl rh the Fr opet ty, and bind the owners and their successors, assigns and heirs. IN WI WHEREOF the Parties hereto have caused this Agreement to be executed on the day and year first set forth above. ATTEST: WILLIAM E. DOIIAIIIIE, Clerk of the hoard By 61411-. &l Ym tL4.. Deputy Clerk SIVVIE OF WASHINGTON ) ) ss County of Spokane On this /! day of ;y, r, ,. appeared before me / lt,n „ty/, ') �. �,,,. •. ,, Page - 6 ' BOARD OF CotflflY COMMISSIONERS OF SPOKANE COUIITY, WASHINGTON SnLLIVAII SOUTH EIITP.RPfI SES, a Washington g`enleera1ll � partnership By kl1 \n K 994 ME 1138 try., (Title) , 19B8, personally , to me known to be the !Ijen.:.ra•.. of the above -named general partnership that executed the , within and foregoing Instrument. and ac- knowledged said instrument to be the free and voluntary act and deed of said general partnership, for the uses and purposes therein mentioned, and on oath stated that he was authorized to execute said instrument. III 4I111E55 WHEREOF, I have hereunto set my hand and affixed my seal the day and year first above written. <..r■.l. Page - notary Public in and for the ; •`' \ o 5. Tlfo State of Washington, residing t10;j 5 1 at Spokane. Hy commission ex- p t.,. tr f {p :SIT j pl res O- r / i v/ f:C7 11.7.Y t\ i flf ^IC = F OF rVASNp . STATE OF WASIIIIIGTOII ) ss County of Spokane ) Pv. ��t5S ( j'r �, 7 J' %. itt. 994 rtf 1139 A,f.FOIlS B. REi1R zis-1i z a r y— IIII.DA E. RE11Z On this day personally appeared before me ALFOIIS R. RE.IIZ and 1111.DA E. REtIZ, to me known to be the individuals described to and who executed the-wi lhIn and fere9ning instrument, and acknowledged iliac they signed the same as their free and voluntary act and deed, for the uses and purposes therein mentioned. GIVEN under my hand and official seal this day of 11 ... �,,.. , 1988. , Notary Public in and for the State of Washington, residing at Spokane. Hy commission ex- pires ' / -, /•:rr Page - 8 ATTACIOIEIIT "A" ri. 994 f.•cf 1140 11) Parcel No. 25545 -9054, more particularly described as that portion o the north half of Section 25, Township--25-Nr- Rangc_44.8 N:11., lying Nly of En Daf' Beg 2024.15 ft. W of RE C6F tit SO D eg 08 min 14 sds E 152.25 ft th S 50 deg 22 min 27 sds E c W In of Ptn known as Rldgcmont Est 12 th Sly alg sd In to W In of Ridgemont Est Add th Sly alg sd N In -to S In of IM 1/4 and term of sd In exc N 1/2 of 114 1/4 and exc 11 480 ft of W 726 ft of HE 1/4 of IIN 1/4 and exc Rds, Spokane County. 11) Parcel Ho. 25542 -9058, more particularly described as the Nest Half of the Northwest quarter of Section 251owachip -25 11., Ran c 4 E.N.M., and the 11 480 ft of"N 726 It of HE 1/4 of 16-1/4 exc Pin of 1M 1/4 of NW 1/4 Dafr Beg at 114 cor Sec 25 th E ale the 11 in 50 Sec 870.00 ft th $ at R/A to 5D II in 770.00 ft to Beg of a Cur to the Eft th alg sd Cur having a Rad of 475.00 ft through a C/A of 15 deg 21 min 06 sds 127.27 ft th w at R/A to W In sd Sec 25 887.67 ft to sd w In th 11 alg sd w Idt 855.00 ft to P00 exc Rd R /N, all in Section 25, Township 25 11., Range 44 E.4.M., Spokane County. Alfons 0 at South 0 q release to the p,.. V-01 1 4 0 Def an 0 ~0112*r. 4J' • STORM 0RA1::7tGE EASE :IE:IT A:IU al G!i1' - AY A: ni:E :c : :T hereinafter referred to as the "Grantors," and Spokane Count a municipal corporation of the State of Washington, having offices for the transaction of business at West 1116 1roud. :a Spokane, Washington 99201, hereinafter referred to as the "Grantee," jointly, along with the: Grantors hereinafter referred to as the "Parties. The parties hereto do mutually agree as follows: 1. The Grantors, husband and wife, in considera tion of 51.00, receipt of which is hereby acknowledged, anU ti ood and valuable consideration, do hereby convey and Grantee, easements and rights -of"a for a storm drainage system over and across lands owned by the Grantors and situated in the County of Spokane, State of Washington. a slescription of which is attached hereto and designate Exhibit "A". Said storm drainage easement is intended 1 1 .. '7 "t 199 -( ;? THIS AGREEIIE!IT made and entered into by and between Rrnz and Iltlda E. Benz, husband and wife, resac og 2009 Sullivan. Road, Vc rata le, Washington 99031, y benefit the property particularly described in Exhibit "0', attached hereto, hereinafter referred to as the "Developed Property -" The purpose of said drainage easement is to provide an area for flowage and storage of alarm water ruts -off originating out or (lour- ing throuch said developed property. PROVIDED, I ;O:TVEA, it is understood by the parties that this drainage easement shall not preclude or prevent the natural flow of water onto, over or across the land described in Exhibit 'A from properties other than those described in Exhibit Y . Y. ty Enriall "A" :eriot ion (:, ;o rtteot!on ;' nd sr lr) That portion of the a(':: t and the %Tl', BE': of Section 25. f.25Y :' 9., So.a.ane County. 4.esningtan, Lang inure particular ij Dcicr toile :. ecgrcninq at a point t'tt Is 5.'11 ? '(., a distance of 6:6.15 (c the :'. corner of Scotto., 25, tail vaunt being (n-rrnn to the with bcrmdary of Section 25 and the .ese booedtry of tro II. Casnatt and others. as es:fills ::cl by a surrey p,erfenr•I by •Alas, (ngin.tr iej In 1976; thence - alan: ai': Ctslutt ..rsr t,un :'re. the lalln•inp tiro (2) courses; 1) `.Pi IV 12 "1.. a distapci of IS2.25 feet; 2) 5.5C'22 a distance of Z;.C1 S ee:: tncnet 5.57'30'99 +n a dlst.mcr of Ili feet. thenc' 5.10'22'094.. a distance of 119.42 'net; thence 5.56 26 a distance of 16 (ec ❑ thrru:e 11.70 a Distance of )i . ?4 feet; thence S.52 11•LO"'J.. a ?ist3nce ob 217.71 (.et: thence 5:511'22'00".. a distance of 151,82 fee:: thence 5.19 21'16 4.. a distance of ey 00 feet ; thence I4. 5322'00'4., a distance ob 161.19 feet; thence 5. 39'31 "4., a distance of 1:8. °.4 feet; thencr 5.51 11'C :"E.. a distance of {99.11 feet: thence 5: R. 'J., ] -0cbmre c�, 49 JO 1,.,:: (Inc." .'!.50-13' a distance Or ?y1.77 ( ?.t; t'c ;ce " 4 5'1 6 '1 1'4 . a distance of 4 feet; thence 5 •6 IS ? . a distance ob 1.1 00 fret; thence S:07 a dl :tacce of 2I5.301 :Pet; thence 5.59 05'95"11.• • distance of 44.00 feet; thence 11:19 a distance ob 57.50 feet; thence :1.21 52'09 "E.. a distance of 211.00 feel: thence 0.95 21'57 ";7., a distance of 2911.12 feel thence :ulcr r.5'1: "E., a distance of 922.00 sect: thence 0.62 I4'59 "E.. a distance of 551.95 feet to the point of beginning. Conta mina A.36 • acres. E711I81T 'R" DESCRIPTION. ; 499 03 5!' AIIEIIDED CERTIFICATE Order Ian. 93 RT' De•crip' inn IA 999 ;,.i 557';nl ;rst 23, t' 1i n. A por: inn of the llnrthcast quarl..r of Section 21. lutennhin 25 Bocci Rance La E'I.tl., being a.ore partibularly describcd an Grllowp. It Iw• ;,r. te', .••r ' it 21. i1■Pr1 7 of Jidpn'nnt I'siltet as per eff,,t l•:n f rterled rn Nos 12 of play: na1 ,; ,l. 16 in the , ' Comm f•rli l.nr 's of ( to.: heir afoul the Lo „nlar y of r id plat the (lII•. : there (J) e rr •; : 1. I ;.ol': :1'22'*!., 1 dista•.te of 531 : "1 I.:1: 2. 5. A .I s :e ce rf 1)3.07 fret: 1. II 11°]1'4 a Ji•.I.. ucc n1 47':.45 feet; l:.rn :a 15'i.. a distance of !7.2! feet: !rear r, n2f.'IL" a di o f ;t1 !2 feet: tI. :• 5e. °il'r 'r . a di ;l.Intc of 5r .); fr thercr S c6 "Ifr n - (.. - dittaccc e( 195 AI fer'I: cevrer 11 St•]5 a distance e7 4.'3.'4 feet In ;Ire L. 1216 turner of tie• ! I.I. 1,4 of said Seel ion 2 f' "I!,'•R' •1 tie IfOl ue ' ur Ihr' ;I.1 I; ' the O.E. 1/4 of r , er le:e :islar; of f.5.75 h el; I.hroro '.I1 °bl'., "t1 . a distance. 69 :1.dr feet: : •5.1: ° 2 /'III '2...1 distant of 5 .::G (et U '.. cc 5.13 r1 . . 'I . ' :: 1: of; '1.,,. "4 .1 " If , *.! u , • Ili( 71.'119 (r,;:; LI••... ■ /4 '' .I *•,, fi On to t7 1I 311 "t' a o nf r. /.. o •,. r .I Of I. 1/, IIInr; 3.d said ocoed :d 111 : n1 ne.1: !star . • I. . dif nn ,au t 1 of said plat the foilodinq Lvrc l2) r41;...• :; 1. l :. f :'1'•7 - L. .: •li;,. , r. •e1 705.7 foot: 2. 11 41 ° 57'17 "E a disked of 741; :1 1, H :t, Ito. ',.I. ..e urn of lo( 24, IIIocl / of said plat and point o('te'linnirnl of this deter iptiun Situate In t'te County of Spokane. °ca Ce o` "an "177^015. 13 I I I / 1 / / / / / S// / V _ / / Q/F ` / / �OA ■ \ \N. \ / I / / / �- �J / '/ / \ -- r ' /' \\ I .- \ / /\ \ -- — T _ i \ ..- / .- v \ O O v C I t-' 1 I tit �1 1 1 n; ' j • I 0 7 / ▪ / i et I_ 1 - ▪ / I Cp T \ C o. DRAINAGE EASEFAEN1 272,132. sq .11. 6.24 acres L8 • �Q r r 1F y X0 �h L6 rv5 ;th J 11 1 ilk S \ h 1 \\ TRANSAMERICA Ig1.E INSURANCE COMPANY \ This skalrh k provided, wllItoal charge, for your \ inOrpto the nrnpnrl ation. It is not inlanrlgd to show rill matters \\ rntnl t' \ y Inchp (Inp. hut not limiters lo. mm j dimensions, ensemerfls. encroachments. or r ^ �/0 \ lorntion 0f bounderins. 11 is nottart of, nnr rocs <°\ it 1t tho commentate or prty to which it i5 (1 nitachod 14 Company assumes (j10 LIACILITY for any q\ manor relate to this sketch. Poln }QQnce should ho 'QO nude to an ncc\lete survey lot fyrtlier information .1 \ q q \ ,S � LIIIE 1 DIRECTION I _DIS1A NCE i LI N16'29'55'1 28.10' , \' \ L2 645'39'33"W /- �� \ \ L3 S39'26 "1Y 40.00' �- \ L4 539'26'16 "W 40 00' - \ L5 556'26'16 W 40.0`6' 7 f9 \ 1.6 550'22'25 "L 26 00'_ ` \\ S' <9 \ l7 569'09'28 "E 25.38 \ \ L'2 in. r C)`M".00/1 \\ L8 117.6'5932 ' E 29.;' \ \ \ �_ / I S �'p ' �tl(t vE RADIUS LEIIGII1 IAIIGEIJ1 L DELIA 1 v. /` \ 9, C1 50.00' 10396' 85.11' 119'08'01 - ' ,)'C2 495 72' 28.12' 14 07' 3'15'02" 7 / v / / / / \ \ 1 \ / I / I I , I t 1