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Buckeye Ln E 10207 Communication Facility Tower . / PROJECT NUMBER= 95003J_3 APPLICATIONG ' ~L"TE= 05/24/95 PAGE= 01 THIS IS NOT A PERMIT PENALTIES WILL BE ASSESSED FOR COAMENCING WORK WITHOIIT A PERMIT SITE STREETa 10207 E BUCKEYE LN PARCEL*= 45081.0807 ADDRESS= SPOKANE WA 99206 PERMIT USE= COAMtJNICATIOAT FACILITY TOfidER PLAT#= 005037 PLAT NAME= BSP-16-87 BLOCK= LOT= ZONE= I-2 DIST#= S AREA= 00000000 F/A= F WIDTH= DEPTH= R/6T= # OF BLDGS= # DWELLINGS= WATER DIST = IRVIN OWNER= US WEST NEW VECTOR PHONE= 206 949 5186 STREET= 10207 E BUCKEYE LN ADDRESS= SPOKANE WA 99206 CONTACT NAME= RICHARDJ BIANCHI PHONE NUMBER= 602 277 0943 BUILDING SETBACKS: FRONT= NA LEFT= NA RIGHT= NA REAR= NA *~****rt~~***~******~********** REVIEW INFOFtMATI0A1 DEPARTMENT REVIEW REQUIREMENT BUILDING REVIEW COORDINATOR - D DOMPIER COMMEAITS : BVILDING PLAN REVIEW REQIIIRED COMMENTS : BUILDIIJG ZONING/SITE REVIEW CONIlKENTS : ENGINEER SITE DRAINAGE TO BE REVIEWED ~ ~4I ~b , . COMMNTS : ~ HEALTHDIST NEW OR ADDITIONAL WASTE WATER ~Qp COMIIKENTS : P~6~ "-laax., PLA~TING SI PLAN VIEW QIII v O Z 0. k+o . . 3 , nDISTR FIRE FLOW TO E REVIEWED • • • . . ~ac ~ Q~L~ , Ct~+co,.ro~~t ~o~ . ~w PRaJECT NUMBER- 95003315 APPLICATI4N DATE= 05/24/95 PAGE= 02 CO1wIl4IENTS: BUILI?ING PERMIT CON'TRACTOR= OWRIER PHONE= rrEw= x REMODEL= ADDITi4N= CHANGE oF usE= DWELL UNITS= OCCUP. LD= SLDG kIGT= 125 STQRIES= HLDG W X D= x SQ FT= SFRINKLER= N REQ PARKING= #HANDI+CAP= CRITICAL MAT= N DESCRIPTION GAOIIF TYFE SQ FT VALQATTOIri TawER s-2 vN 35000.00 ITEM DESCRIPTIOAI QUANTITY FEE AMOUNT COMNSERC IAZ VALUAfiI ON Y 317.00 PLAN REVIEW FEE Y 206.45 S'TATE SURCHARGE Y 4.50 COMMERCIAL SURCHARGE Y 94.15 PAYMENT SUMMARY ~r~~r***~**~***~~~~***~r~t**~** PAYMENT UATE RECE'IPT# PAYMELdT AMOUNT 05124/95 00004414 621.70 TOTAI. DT]E= .00 T4TAL PAiD= 621.70 PERMIT TYPE FEE AMOUNT AMOUNT PAID AMOUNT aWING -W-rr-r~~~~~~~~~~ -----1-i-li-- iw•w~--~~~----E- BU.ILDING PERFiIT 621.70 621. 7 0 .00 -----wwn------ -rrr--r------ 621.70 621•70 .00 PRGCESSED $Y: DAWI3 DOMPIER PRINTED BY : WENDEL, GLC?RzA ~**#*~~****~~r~r*****~*****~~**~~* TF€ANF{ YOU r F , -BUCKEYE iN E fQ"Z 07 J ~ - S D~TE MALED _ c=K w.HEv r.oGCED nv FnN,at. BLDG. PERMU # -or -FTI" - ' N i S` O S~ , Related File # ( BSP-16 V) Date to Revwvv 3-22-95 TAne 11:00 # FRE-APPLICATION Date- m AA & DR 1'nne Date Received 3 2-95 PwaecA Name US WEST NEWVEGTOR GItOUP FAC NQ. Lots Nn.Acires Secbon - TioWn,ship - RWe SFTE ADDRESS B~JC YKEYE, LN E 10207/W UNMRSITY PARCEL # 08541`0897 Appl'cantts Name 'crNt, MCFADDON Phone # _ 246)949-5186 Address 11201 sE 8M #190; BBL~:EvUB wA 9M Work # Date Conditiomsmailed Contact person Plh0ne # P.LAOD ZONE V NO W S ,SCFi00L Bogineer Surveyor's / Atchitedtls Name Ftanning ContaCt PeFS0n Phone # 456 22Q5 J DatC S11blIIlited DamiotibD. TIItd8l8 ~ Z- A~t,1VIENT TO PAY F~S OR PRIORITY FEE COMPLETED & C4PY TO ACCOUN`fDN(~ sa~~ IuNAL PLAT FEES GOMPLEhTED 8c COIfY TO ACCOUN"I`ING , J I NOTiCB TO PUBLIG # 1 3 46,cOMPLETED -bR NEEDS TO BE S'IGNE'D , DE,SIGN-DEti7IAT'ION SUBMI7°I'ED , / j ALTERATION TO PLAT - BLOCI+CS & LO'fS BO1WD RBL'EASED -ROAD & DRAINAGE IIVIPRUVEMENTS , / HBARINCy tX1M AMOV.BD DENIBD- 1lPP8AI.BD BBE l PROIBCT APPROVEM DBNI4D , ~ ~ r A4.6c. - cvp 'M~& S~Z.~~~ TE / ~ . ,~zc~~.~5' ~~v ~ t ~ te CA-3is.1 u VC01 , ~ • ~ ~V 1 N~~P~1 ~ JV ' ~ ~ ~~7'~`~ • ~ AL f-* ~ _:Xp1Jftuiew.16r ~-a~ i 1 -3 Page 1 OFFICE 08 THE COVNTY EIiTGINSER SPORANS COUNTY, WASHINGTON Project: U.S. West Date:3-22-95 Addresa: East 10207 Buckeye Lane Ref No. B95050 Parcel No: 45081.0807 Review Pre App The County Engineering Department has completed a review of the above referenced project. The following information must be provided in order for us to proceed with our review. A) For any new hard surfaee area, for an asphaltic roof, or a roof containing HVAC machinery, a drainage plan for the site ahall be prepared in compliance with Spokane County "Guidelines for Stormwater Management". At a minimum the plan rnust contain: 1. Drainage calculations for stormwater volumee generated on site. 2. Calculations for total impervious surfaces contained within the site. 3. Finiahed grade elevations for structures to be constructed on site. 4. Finished grade elevatione at the top and bottom of the 208 awale. 5. A typical cross section of the 208 swale. 6. Calculations to justify the number and type of drywells proposed. 7. Elevation of drywell inlets where applicable. e. Copy of the proposed landscape plan. B) The subject property is affected by the "Findings and Order" and the "Conditions of Approval" for the following land use action: Spokane County Binding Site Plan No. 16-87 % -T 4s-ob -s-5 C) Insufficient information was submitted with the proposal. We are unable to proceed with our review. We will need the following before we can proceed: 1. Site Plan. 2. Drainage plan as specified. 3. Other information: a. A parking and traffic circulation plan ahall be submitted and approved by the Spokane County Engineer. The design, location and arrangement of parking stalls shall be in accordance with standard traffic engineering practices. Paving as required by the County Planning Ordinance, will be required for any portian of the project which is to be occupied or traveled by vehicles. It is illegal to back out onto the Right of Way. D) Utility Condition: Permittee ia reaponsible for arranging for all necessary utility adjustments or relocation as required for completion of the improvement. . ~ Page 2 . E) The owner of the property or the authorized representative must complete and sign Spokane County Engineers "Agreement to Pay Fees". This document must be returned to the County Engineers Office. Plan review will not be completed until this document is executed. This document is attached to these comments. Please return the completed Agreement to your contact person at the Engineers Department. The applicant or their representative is responsible for including each item that is marked "Required By This Projectn in their submittal in accordance with the checklist descriptions. Each item submitted that is to meet the checklist shall be checked off by the applicant or their representative. Submittals which do not conform to the above requirements will be returned for further items with no review being accomplished. This will prolong the review process. If changes accur in the requirements for the project because of further conversations with Spokane County representatives, please attach a note explaining the agreed upon change in requirernents. When the applicants, submittal is finally approved, the Engineers department will release their portion of the Building Permit. Your contact person at the County Engineering Department is Doug Busko, 456-3600. / '~►9~s~ _ C V4W T$1g. _ ~~s~ - -s r - - - ~ ~ , WW4c. _ co*4 aX~ogr MAA*rmp Co 0- "M ~ - - - - - - - . J. q 4a ~V&'Ik rtblk,. I~m ~,r . _ _ _ - - - - '~r • _ ~ 11~ ~L ~ 1~x~s ~ • ~ 'C~ ~~t'!~~ _ REcEIvEU . MAR 2 7 1995 SpOKEWE COUNTY ENGINEEA March 22, 1995 ADDENDUM TO: 10207 E Buckeye - Communication Facility The prooject is subject to the Airport Overlay Zone Requirements: Prior to development or issuance of a building permit in, any of the Air Space and/or Accident Potential Areas herein defined, the awarding of an avigation easement by the property owner(s) to the appropriate airport(s) , shall be required and rocorded with the Spokane County Auditor's Off'ice. Contact Dennis LockelSpokane Airport -Baard. Please submit a copy of, your filed easement agreement to Lorne L,akshas, Zone_Review. RNE LAKSHAS' Zone Review tr • r ' REPOAT OF 3122195 PR&APPLIGATiOAI CONFERENCE 10207 E Duckeye Laae - Commmicadoa Fadft & Tawer NAW ADDRBBB CI'1Y. STATB ZiP PHOSVB ~ CO1+rT AM W88'f' N8W VBR.'IM PO Bos 90111 ~ RnOewe . ~ WA q~QB ~=9d4-S1B6 TZn Md1~c OM1NtOEA U8 OoW1VER Ue WBSt' N6W VocRm Sa0 l08d► NB 8ellawe k WA 98006 206*684*38 Rm eaM INQMEFA SlmRS+ON 640MM 90Q N Mtoses Rosd S~ofraao WA M12 3094?b1)Z1 ARCHIl= BDP 123 W Mlmtr ~ Ph,oanit ~ AZ W19 602-21/4➢Q3 Rid.m woed. UATE ~N[1►IRONMENLAL P4L[CY ACT (SEPAI '!Um penpoeai aas raveewed by the Divieicn of BtdtdiV8 fbr eaupliance witb dha State Bovtroam~ntal Pbiicy Aat A thmhold detarnunatioa is am tequie+ed hascd on WAC 197-114800(!)(G)• PRQjECT OJMV1L.W P~d ia the comtrnottoa of a onc-atory 3.4700 oq dfuIly epdalcled Comnuundoadoa FaciGty, nnd a 125 fao41igh wwar. Approxbna4ely one-thtN of the bufldmg vvIU be used foc atYico area, lamga, aad neatrooans. 'i1~c eeaneiatrg poWm of de bundu{g anll be ueed for tabqhmm savithcft equipaw, etariqg of batteriea. aad otfa elecwmc aqwpaat. Neo toceted oa ft ette wiU bo a?,000 ,gnUoa abovo-gtuud dteael Rtot tank to ba uaod fbr bock-up pavver. 'lbata a►ip bo ano M1-time employaa at the ute. S[M24MY QF PROPOsQ ooot~. L11m 1w PAW CONSf FO18 OIAR= 10m ACROl1B 'fYP6 stuam Iw 6aR. QROZIp 7YPB iLdW WA78R PI JRVNOa / P6m ffMM 1.2 BS"?-16 llom ul0 8.2 ~ VN tSOD" bvfa ( WYeer O~iat 11S p~9~ 17f .if l?S' tti~tp Ta.e+ ~ ~ ~ BldB ~+eaolded DLSCUSSiON TOPiCS lderiRaseions. aMdam, wd conections !o written commera1 ~ ■ ' ZONING (456-367S) CONrACT: LORM LAIGSAAS. • Written comments were prepared & a ccPY Fiven to the appUcant. • Delineate 6q R of oflice space and sq R of non-occupied area. • F'ive feet lyrpe M landscaping is required along Buckeya. • Obtain an aviMoa easementQ by Spokane Ai'rt Baard. (Contact Donnu Locke). ENGIIVEEtiII~TG 8t ROADS (4563600) CANrACT: DOUG BUSKO. • Written commeats were prepared dt a coPY 8►ven to the appLcanL « All coof dranage must bs direated to s drywell. • If landscape is iacorporated into 208, Bngmeenng wiU need to review. • PavlnLwaiver from SCAPA for ravel tot in rear is requured. Recommend includiog futnre expandon on curneni siteldraina HEALTB DLS1'RICT (324-1560) CANrAC1: DARYL WAY • Connect to public wwer. Coataat Billy Urbausen at Utilities Depsrtment (456- 3604). ' Contag die local refuse campany to determiae best location for dnmpster to a11ow uuaaround for ttieir vahictes. HeWth Department ready to teleasa permit, • Utilities will need to sign off an this permit. * All conshucqon debris most be taiken to a licensed dopW facili : no on-site burni or burial wUtbs authorized. ~ Im DwTRIGT NO.1(92a-2462) CONTACI: PAIJL CSASE f Bntire bwldwg spnnkZed • The F'ue Disrict coanection far the sprinkler system is to be located ia a vault outside of the butlding, aad ,s to be witbin ZS ftet of a hydraat. • Kaox baoc requwed. DIVLSI4N OF BUII.DIlNGS (456-3675) CONTACT: JUN MASCARDO. • Written comments were prepared & a coPY 6iven to the applcaant. * For information on the Americaas with Disabilifies Act, call 1-800435 7232. Bffecdve 4/1/94 all commercial projer.ts sbsU demaastrate aompliaaae with the Non-Resideneal Energy Code. * Snow losd for this area is 30#, vhad load is 70 mph and froa depth is 36 mches below gcade. s Pcovide accessible route of travel from bndd,ng to pubLc way • Provide detAil of haadtcap parldng space to verify compliance with WAC 5120-3107. • Provide detail of toilet fmcilities co verify comphanca vinth WAC S1 ZO-310b(k). • Specify the um oP each room for determwauon of occupancy, exawg & occupaat load to venfy compLance with UBC. * ltivo compiete sets ofcouMcvva dtawtngs foc complete plan reviaw. off- m J 6 SEE REYERSE FOR PERM/T RELEASE REDU/REA9ENTS • j~ • • PEItMIT REI.EASE REQUIItEMANTS . Pleme subnufseven sets~af revi.se+d pte, droinage, ond'landscabpe pkns plus three, (3) cavnPlete sm of oanstruction &mwng8 to tke Depanvoent af Bulldin8s for acknowlalgmsau a»d dwnbimcan to a!1 the apPr+op»ate agenues. In aader for all agmae9 to e~di~io~sJY Procem{Your Prvlect• uts umporma tbat aubmdttal.s iwTirde aU neaessary dmwngs mrd docwnaw.t,to uuum t/mt revlew cIYourProIea ia conpJeted in tJie lmst m►rount of time. Daaweents~shaJd tnclude: b,ulding oddress mrd legal doctipjion ofPropen3'• Spoicane County's Projeet Review Coordinetor wiU be John Lerson at the Oiv. of BuUdings 1456•3675). ?AMNO BNOQIBBRS, HBALTH POtB BpLDIIM 1 8wlding height in etanes & feei_ X 2 Curbing a:+ound landscaoF, X 3 Butwior l,ghtinedirwban of illuminaaou X 4 Extftior rafusa areas + screeaing X ~ 5 Bxtcnor etorsge arese X ~ 6 S feel,l~pe ui landsca~ alang 8uc" X 71 - - Len in (location, speeoiss, eiu) X 8 Parcel boundary dimenanoas and lepl descrivtiozt X ' 9 Bwldinl coverala calcutabon 7C ~ 10 Farlon$ & traffic cu+culahon plan 7C , % 11 10 Parking stalle (nurnber.,stri',~n . duneneion, directional arrows) X 12 Pev,nf. X , 13 Si e ocatioa. height. dt-sc~uara fcotaga) X 14 uure footage & tVe of use of rosed X 15 Draiaap plan (swales. "lle. calculationa) X 16 Handica lon stalls into & within Wd X - - 17 Cost eshmato of irnnrovemeats ~ X ~ Ini 'on eyetem plane X - 19 Nurm,► estimate _ X ZO ffSpwW. m~t to.~► f~ 8t minimum t+ec~uiremente lis! ~ X ~ 21 al Materials list X X 22 ~KfiQocl booc ~trY e}►stem form X 23 NRBC-1PIan Review►ar 3t 7 26?d Bsrrier~Ftee Requir+emente (1iVAC S1-20) ~ X 25 Desi~ s~eciftcattone of vro~posed bvilding 7t , ~Bnerg~► detailslcalaulations 8t heat low X 27 F'ire sarinkler ~ X' 28 , Heafiag. ventitaaa, & a,r condiaomng draw,np x , 29 Loading dockdemgn X 30 Plumbing details 1t 31 Structural drawunfe wdh wet dt calcutations X ~ / Signature of Cao 1 ator Sjgnature of Plan Reviewer Project No: PERM T DOCUMENT TRANSM TTAL Spokane County Division of Buildings 1026 W Broadway Ave. Spokane, WA 99260 Pro1'ect Address: lDa~7 jc~- Project q,:~, g/ - Business Name: CONTACT: / + / J~ Phone: -2)J~7- 09V=.:9 Mailing Address: 1 ~2 3 ~ ~ . f COORDINATOR: Phone: ~s / DOCUMENTS CIRCULATED Description ~ ~ ~inows ►ealt► ohm U,odes SCAPCA s n a ~ ~ ,~°IPt , ~ , ~,~C.~•rn Pw -D -,-Z, , Received 6y s mi oqi:. ~k.c2 7. T c! Circulated bv: Date of Trart ~ r ~~"'?ll~. ~V~r1 E 4Ht ~ V~~1~L ~ R tj f R 1 ~ , I F~ECFIVED • , ' 'iTTAL # 72~ _ ~ JUN 2 7 1995 .~:7JFiN TO CQUNTIf ENCiNE+R P SPOItfiiiE l;l~Ur~TY E~1GIMEER ~ . ~ !j + SPOKANE COUNTY ~ ~~EAR,,,.• ~~R t] AIR POIlUTiON , 9~ o m /A N IL-Z CONTROI AUTHORITY WEST 1101 COLLLGE, SUITE 403 • SPOKANE, WA 99201 •(509) 4564727 Fax (509) 459 6828 , June 23, 1995 Jim MiIlgard Spokane County Planning Department Spokane, Wa RE. Paving Waiver Request for US West NewVector - Paving Waiver Request #PW035 - Planning Department File #BB-43-95 Dear Mr. Miilgard: After review of the paving waiver request applicatron, #PW035, that was provided to us by Richard Bianchi of Bianchi Dustrud Partnership for the tower/fuel tank facility to be located on a portion of the site at 10207 E. Buckeye Lane, SCAPCA makes the following recommendation. it is SCAPCA's opinion that leaving the leased srte unpaved will not adversely affect air quality. These recommendations are based on the facts listed below. 1 The site is within the Spokane County PM10 non-attainment area. However, based on the information provided in the application and the facts listed below, air quality impacts are expected to be minimal. 2. Traffic to the site will be minimal. About one trip every 30 days is expected. 3. The application indicates that gravel will be used on the leased site. 4 Portions of the travelled areas wili be paved, and the unpaved area wiil be fenced. The proponent is responsible for ensuring that all of SCAPCA's regulations are complied with. This includes ensuring that particulate matter is not emitted from their unpaved surfaces in sufficient amounts to cause an annoyance to any other person when deposited upon real property of others. Also, it is unlawfui to allow dirt and/or mud to be deposited on paved roadways open to the public without promptly removing such dirt and/or mud. if you have questions or comments do not hesitate to call me at (509)456-4727 ext. 102. :i cSd- Fltr W7F4rl- ~ Jim MiIlgard June 23, 1995 Page 2 Sincerely, SPOKANE COUNTY AiR, POLLUTION CONTROL AUTHORITY + S. Edward Hayes, Air Quality Specialist II cc: Richard Bianchi,,6ianchi Dustrud Partnershrp Paul L'ennemann', Spokane County Engir,~eers Tom Davis,, Spokane, County Dept of Buildings Joer~ ~6 ~45 02 ,Pr I T'FOE At IE PT OF bLDr 30 P9i JUN b c' 95 i5: 25 r r SPOKANE COUNYY AiR POLLUTION CONTROl. AUTHpR17Y 4,7- 5uite 403, West 11101 Collede Avenue Spokene, WasNnqton 99201 (509) 456-4727 JUH 2 ~ 11995 pavIntG walvER 116auEsT SPOx4nE PURSUaNT TO SpOfCaNG COt1NY1f Z4N1NG CODB 14.802.080 ~-,A• R.,4~~rUN Fot Agen ' j~l~e. t3~1 y 1. GENERAL INFORMATION Request No.-%3- Owner U. S. West NewVector Appfttant Bianchi Dustrud Partnership Contact Person Jim Ames Contact Person Richard Bianchi Owner's Mepfnp Address App(icant's Addreaa 3350 161st Ave. S.E. 123 W. Missouri ' Bellevue, WA 98008 Phoenix, Arizona , Q Phone (206) 450-8119 Phone (602) 277-0943 ' Installation zddress Nature of Businasg 10207 E. Buckeye Lane, Spokane Cellular Telephone planninA papaRrnent Fiie No. (if avell.) ' BP-4 3 -95 2. SUMMARY OP PROPdSAI,/PROJECY (Attach an addiUona! 6heet ot paper;f necessary) - , Construction of new building (3,513 sq.ft.) with 100' high tower and eleven parking spaces (parking area & loading area is paved). , 3. WHY lS 'r7iE PAVlNG WAJVER I5 BEING REQUESYED (Attach an addit;onal sheet of paper if necessary) Area north of the generator room contains radiator, fuel tank, & tower. Access to this area is controlled by 8' high chain link gates. Area to be used about once a month for service to tower & fuel tank. 4. MITIGATING MFASUaES TO BE USED IN LIEU OF PAVtNG IAttach an aQditionat sheet of paper tf necessaryl Total site contains exposed gravel/rock. Request area to remain natural gravel. AECEiVED ,j0KPNE COUNTY JUN 19 1995 6. OTHER tNFORMA't14N - AYl'ACH Ta THtS APPLICATION H , UF 9 ILDING i • SITE PLAN OF TNE PAOPOSAL SH0IMNG •eAREAS FOA WHICH THE WaNER 1S REaUEBTEb AND AAEa9 WHERE PAVINQ WILL OCCUA 09TRAFFIC FLOW AND ESTlMAYES OP ANiOUNT OF 7RAFF1C PER DAY. I, THE UNDERSlGNED, 00 NERRAY CERTIFII THAT THE INFORMATION CONTAtNED IN 7NIS liPPL[CATION 18. YO THE BESY Op MY KHOWLEDGE, aCCURATB AND C4MPLETE. 1 ALSO AGREE 70 pAY THE REVIEW FE5 pER BCAPCA REGUlATION I, SECTION 10.086 fpnatwm ~ OAts TYpe or Ptint Narne Phone Richard J. Bianchi Architect (602) 277-0943 ~ ~ a PERM T DOCUMENT TRANSM TTAL - Spokane County Division of Buildings 1026 W Broadway Ave Spokane, WA. 99260 Project Address: L, Project Business Name: Lb,~-~m~ c~ f~-~'~u CONTACT: Phone& - MailingAddress: ~ Q3 w -s . COORDINATOR: Phone: a&75 DOCUMENTS CIRCULATED . Description ~I~ ~t~ ~ Fk°. UMIn WAPC,► a-nmt AC~ yl-1~/) ~ Received By I I ~ ~ ~ Date of Transmiftal: CP - \_9 Circulated by: : RFrc0,i4'ED . JUN Z 0 1995 $0w ?l, t r. u,,.fY i'dG{NEER ~ , NN 06 ' 95 02 :,-4ePM SPOKAN~..PW OF BLDG 6M Pa1 JUh! fOb2' 35 15: 25 340%./ sPOwAue counrrY AIA poLtu'fioN caUTRoL AuTHQRrnY . suift 403, west I 101 coue~e Av~ spekan0, wnWagm 99201 (sos) 4564727 PAVING vVaVEA RliauEST PURGUANT '1'O BpOKAN6 COUNIrY ZONiNG CODE 14.802.080 L,ncy ~e Q~y 1. GENERAi. INFORMATION tt No. ~...,..r.~.. Qwnw U.S.West NewVector ApOttam Bianchi Dustrud Partnership Cantaat Romon Jim Ames Gontad Pman Richard Bianchi Ownet'~s Nlafltnp Addmit Apppwrrt's Addtass 3350 161st Ave. S.E. 123 W. Missouri ' Bellevue, WA 98008 Phoenix, Arizona Phom (206) 450-8119 . pho~ (602) 277-0943 ' 4Vmwan oddmss Maaire of 9ualnme 10207 E. Buckeye Lane, S okane Cellular fielephone eaanA QeOarore~rt Fl1e Na qf a~ra P~a BP-43-95 2. SUMMARY OF PROPO9AL/PaOJBCT (Attach an addftvnat Bheat of paper st neaessary) Construction of new building (3,513 sq.ft.) with 100' high tower and eleven parking spaces (parking area & loadinq area is paved). 3. WHY IS THE PAVING WAtvBR 18 BBINa REtlUBMD (Attaoh en addieionat shset at paper N naeessary) Area north of the generator room contains radiator, fuel tank, & tower. Access to this area is controlled by 8' high chain'link gates. Area to be used about once a month for service to tower & fuel tank. _ C MtTIGATINQ MEASUAHIR TO 8B U8ED IN UEU OF PAVING tAttsoh -ein edditiOnl ehAet Of papet i4 AACe8saryl Total site contains exposed gravel/rock.° Request area to remain natural gravel. AECEIVED -,rJOKANE COUPITY •01 S sffi ~r b. OTNER lWFOAMATION -/1►Y7J►Cii TO TH18 APPLIGATIOH OZ n oeARG" LDING S!'~ PLaN Oa TM~ PROP0~6AL BMOWING A POA WNIcH THe wANBR ~ i~6nUE~TBb MtD AAlAg VIMEAB PAVING Wl4L OCCUIi •OTR/1FRtC FL411V JWIY OTIMA7B3 0F AMOVNT OR TRAPRIC 1001 DAY. 1. TNE UN09Mt=80. d0 HENRY CUR7'IPY THAT THB INFORMAT1dN CqNTA[NBD !N YM APPLtCA'TION 18, TO THE OESY OP MY kNQWLeDGB. ACCURaTB aNO CpMPLUe. i Atrso aaREB ,ro pAY tNe aeVMw FEE PIER acapcA McuLATIoN 1, secTtoN 10.0e0 ' -5/j5 ~ . ~ ~ ~ ftne Richard J. Bianchs. Architect (602) 277-0943 ~ . ..,i - - a rr' S P O K A N E C O U N T Y OFFICE OF TmE COUNiY BNGIIVEBR • A DMSION OF 1'HE'PUHLtC WORKS DBPAKiMENT Ronalcl C. Hammi►, P.fi., County,~Engmeer Deiuus M. Scott, P E, Duector Nftmo DATE: June 21, 19~95 TO: Jeff Forry, Semor Buildui Tchnician FROM: Doug Busko, E I.T. Paving Waiver Recomffiend'stion U.S. West NewVector Building & Tower East` 10207 Buckeye,Lane Based on the information submitted on the Paving Waiver Request (the unusually minimal amount of h~ic, the presence of an 8' chain link fence, etc.), aad from phone conversations with tlie architect, it is-my recommendation that the Paving Waiver be approved as requested. 1026,W Broadway Ave. • Spokan'e, WA 99260-0170 •(509) 456-3600 FAX. (509) 324-3478 TDD (509),324-3166 NO'I'ICE OF TRANSMIrIlfIlAl-i AC)DItUSS 1'itC)11:C: l ll q e-I _ I3USINCS .S NAMC ~ PA[2CCC. NO /LLGAL U---) - ( A S4- ru e vJ v e Cl 4_ D CS C IZ I PTI 0 N PROPOSCD USE • ' C'~~m 11) ra. QOLr CONTACT: PHOIV E ,..~~(17 ` 919- --J ~ REASOrI FOR TRANSMYTTAL PREAPPWCATtON CONFERENCE PRECON9'iRUCT'ION CONEFRENCE OTNER- DATE: TIIviE: DOCUMENTS CI;tCULATED . ; DLSTRIBU'TED TO: REM OESCR[PI'ION BUILDINGs PUNNtNG ENGINEERS HF.At.TH SCAPCA F'QtE DIST / OfEtER: Sita Ptaa (ae+v) (cavised) cri4cat tvtaceriab usc ~ iParkiag Plaa. ~ - •wr. ■ .w «r ww r~~w~► r r rr r r~r - - • I$lgna$G pjaD - M y~ M~ I N A I ~M M MMM~ Lighting Plan , Dcsiaaga Plan , - - ~ Draiaage Calcutatioas " i r~► ~ rr WIM ~ r wM.w1 r ~ II w w~ • ~ ir Agreenc4c co Pay Fe.es Y ~Ily~~liF" M►W M~ ~ Irrigation Plan N Laadscapc Pian . Pmmissory Lettex I IY IM MM IYM M~Y Y ~ v W IM Y M ~ M 1~ MI \ r M LMd9Capc COSt ESttmatG -w .r w.■r.~ w~. w 'fraffic Cimutation Plan IConstcuction Dcawings Floor Plan . ~ • ~ Thc nbovc itcrns have bccn rcccrved ~ 1 ~9~5 ~ j Dacc of Tcansmittal•s-r / I - 9S Rcwew Coordina~. . ~ CIrf.u) IlLd tlp ' s • NOTICE OF TRANSMyrrl, AL ni71)ltUSS I'!tQll:C I' /1 '32y ~+•3~/3 QUS[NL-SS NAME PnRCCL NOO 1L -CAL ~ up C4) v eJar ocsCRrPTtoN PROI'OSED USE• ~ 0 DMm un . • - , £ foujp~- w5o yono CONTACT: PHONE• ~.m tir T'nis ~ ~ - qi- - St tSC.so RB ASON FOR TRANSMZTTAL PREAPP[.tCATtON CONMENCB PRECONS'f7tUCTtON CONF'ERENCE OTHER• DATE: 1'YME: DOCUMENTS CIRCULATED DLSTRIBUTED TO: ' DESCRIPT[ON BU1L01NGS PLANMLKG ENGINSERS HEAL7H SCAPCA FME D[ST 1 UrIKFR: L4 Sita P1aa (aaw) (rcvised) C=itical Mateti,als I.ist ~ . Packing Plan. . . . w ~ Sigaaga Plan ~ t w r ♦ ~ 1w 4 I Lw I~M w q ~ Lightwg Plan Draictage Plan ~ ' . y< Drainaga Calculatioas ~ ~ri r• r irr ~ Y M YW ~ wr M I ~ . Agrootnent to Pay Fm ~ r rr w .~r. ~ rwr rr wir~► rr w r~ x trrigation Plan ,.X Landscatpa Plan . Pcomissory Letter rr . rr\~wrrMw MA 1~ w 1~ My ♦y» ~ Mh ~y LandSC1(fo COSt ESttitlAtC . TraiE~'tc Circwlation Plan ~ iconstmetion Dcawings Fiooc Plan [-Rep=+ tiai rT ~ cAlp ec~ Thc Rbove itenrs haMC bauil rccciMcrl: Datc of Traasaii(cal•,') ~ Review CootcSi tvr , ~ C4rcill 110 11) , i , ampson Engineevs, Inc. CIVIL ENGINEERS AND LAND SURVEYORS N., 909 Argonne Road • Spokane, WA 99212 (909) 926-1322 o Fax: ~ 926-1323 TO: DouG Pusw , S C'oKAh.fE Cout.1TY EN6ImEER5 SUBJECT: U. S, WEs-t' Pr-s.i ~~.~oRT DATE: Ma-r I a, (995 ~ , /-tTm!'.t-Ier~ f=bE 400P, k`_EV teU./ At'.E -tiA. jn CnAI F.3 4r- -ME iVj&LujaE_ 9-E:96R:f- A-i,n~ TkinPpu)-rrs o r- THE S rTE 13 r.Awr1-6 F- PL.A+,I , F-01~- TN E U. S. w FsT ljEVjVEC-'M?- 6NvP kT i o 2o-l P.,As-r ~~.A-r,► izz w -rrtez s Pn ~~vAL&r-~ . r , ~'~FQ ~ C dz~ I Y , e ON ~ "C/~~~~ - ~ , i~ t _ • wv, ~ . A _ V. K" C 1 1 L l ~ - - ~Ag : . . y SPOKA~il ~ . . . , Stgned I i- . N orrICE OF TRANSMIrl"tl'AL n DoREss ritoj Ec'l n ~ ~p ~ . 13US[Nr ~,SS I~1AMC PARCC[. NO /LCGAL LA'~S_ DESC[t[PT[ON. PROPOSCD USE• . , , .Om rn u,n l C.A,k C!~ I L-L 4501&1. CONTACT:, K C.; f- A pC)U--) PHONE- .11900-0 7D 1 - ~%r 'v V I • • _r~ ~ ~ _T REASOrI FOR TRANSIVIXTTAX. PRFiIPPL.IC/1T10N DONFERfiNCE PREOONSTRUCTtOK QONFERFNCE 0?t{ER- DATE: TIME: DOCUIYtEN'Z'S C1ItCrJLATED t DLS1`RiBUTED T0: - ~ PBW 06SCYttP'I'ZON BUItAINOS Pt.ANN[KG ENQiNMS NFACf'W SCAPGI FME DIST I OR'HER: . Sito Plan (aow) (rewise,~ ~ Cciticat Matadals I.ist ~ Aaciciag Ptaa. ~ ~ I► MM I iI NI iIR ~M► y' ~M M Sigoaga Plan , Gishtung Plan ~ Draiaago Plan Dcaiaaga Caiculahons r r A ~r . IM ~ w r iM~ ~r r~Mr A Agmmatt to Pay Foes ~ inigadon Plaa ~ . . . . . _ _ Laadsatpe Plan • Promissocy Letter • i1 U. W M~IA M/II~ MM 1 M I M M MM i IMI~M~ MM ilr ~III MM. Laadscapa Eba Fstimatal' ' nm . Tmffca Citcutation Plan iConstmction Drawings ~ Ftoor Plan . ~ ~ . ?he above itcros /rave bccn' ~ T T ~ • rccci vcd: ~ - - _ - T r amlr > t . . j ~ ~ ~ i Datc of Tcansmittal:~~ Review Coocdi ator.~ ! f CIfC111 11C4I It 1 G . _ . . I ..r t'~ l~a ~i 1 ~•1~11 />P f/ IO - . . . BUILDING PERMIT CFIECKLISl' ~•^•~'IT #,~7 AVV'+4.V~ - a E' _ JL~gwUi~t~i~ co1~PLETFb ---T ~ . A ~ 1~ . • . S _ - - ~R~~fYi - • . . l.; . _ z . ~ -}7~-~'p ~s f G~ NVREE C1V l 1 ~cj ~iQ P/`1 i - RIGNT OF WAY DEPARTMENT QEE D _ _ _ _ - - EA~EMEtVTS _ R/W 'RID LEGAL DESCRlPTION C!-IECK LETTER FROM SCAPCA RECIPROCAL USE AGREEMENT APPROACH PERMIT J r ~ 1 ~ ~ 4 v•_ ~ . ` l , ~ NORTH ARROW - - - - - X _ SCALE Jx ~ BENCHMARK ~ - - ~ - ~ x ROAQ NAMES - _ _ - ~ - - - x _ ~C - - _ - - R%W OIMENBIONS _ - - - _ • ~ _ _ x PROPERTY LINES x SET-ASIDE shown on elans C3RADES (min 1 0%0L- X-- STAMP X ~C PAVING (surface discrption) TRAFFIC CIRCULATION PLAIV X CAIVDQCAPE PlA1V 4208 CONFLICT) x X DtYwelULidllnleUSpiash 8i66k Detaii Ro-ol construction HVAC on Roof x Swale volume calculaiions x Swale Cross Section Pre Developed Condition ~ _ ~ _ e _ _ _ _ _ ~ ~ ~ ~o _ ~ ^ ~ • Post DeveloQed Condition SPECIAL SOIL TEBTS DITCN CALULA710NS PipeIBACKWATER CAICULATtONS GRATE CALCULATIONS RETENTIONIDETENTION CALCS ~ 10/50/100 YEAR STORM TR-55 ANALYSIS L . . . . A ~ MAbs florlh Arrow ~ - - - E _ - - _ . - - ~ - - - ~ Benchmark ~ _ . - - _ _ ~ _ _ _ - - _ ----a Scete Gutter Grades >0.8°/ Cross Slope (2 0%-4 5°/Gj Drainage Repott Orsinege on Plans Curve Dale (radius, hc, vc) Pavement section Tapersltog stdpe EnQineers Siamp 4uaniiUes/8ond estimat6 _ - - _ - - - ~ - - - - - - - Bond Mylor - - - - - - - - ~ Owners Signature _ - - - y - - ~ _ _ _ - County Stam.L. ..r_~._ - - - - - - _ _ - " f0 915~r31`-~ sra" yZ ~ . - j wss'T euc, e.. 0:01 . 19 ' 155 1 c,~'t0 SSP ~r r o zo•gow ow ~ / iT oc is ~ .t- 9~ ~ 1LJ_ ~ ' ' t 14.. 1a, V, . . tow" Or'"'er - ~5 ~ 11, ...A anot , -4- Wo • v ~ 6~~ ~'~~""n~ ,~•'~°d~► at , a~ ~ ~ ~ ~ ~ob~ 9.14 ,p,~ ;isowoo C , to at &W ~a~r ~ ~ ~ ~ • t~ iw~ t1~1t ~ ~ ~ ~s Vw VO&AW $p,~` ~ of bic" S•,~,~ *0 "a) ° x W,"°~~` ~ ~ ~ to d uip s~ ts►~ ~ e~~" ,~~o~► ,q~ ~ do 04 6~' . ~ and t~ ~ ~ ~ "s~ ~ '~l~ . ~ ~ ~ pEC~1~~UNT'~ to ~ C~ i~ SP ~ *0 sittatwo . ~ sea` to d~ ~ , - ' ~~11.~1NG r,a~'~tt► 90r ov~9 r Y► 95 ~1► 1 "S Sg1 8 ~W I, P ~~i evUG• 9~..~" gpptl~►+iE (:i1.Y• ~ . I dt a~qpR'~ : C► ew (ea _ iwte to r" Uu4;sv,i__A1 ` ~ ~ ~ ,o~►t~ ~ ~ G01~~ ~hu ~ dWIF v~ . + . e P..L I C-A-Ti O-N PRE-CONSTRUCTION = ~ DATE.,3 --oV TIME: r B V iLLlNV it':1 El`IGRriLiMSs ll~.A►LTH ~ . ~ ['ll\i:+ LJiS i. r~ ~SCAL C'A L E -I f r ^ M ' > i.»r . ADDRESS: ~ . OWNER: WS We6-rAtao V69M 2 600P PHONE: ADDRESS: P,,O, )?;ox qM( l &~LL-euo~ WA. BUSINESS NA►ME: U, ~ CONTACT: MQ-tA-bbt&J PHONE: M-5 l&4 ADDRESS: t~~ ~e 24'~, -4 lqO , Sz4.Gu~ tfJAe QeDaY , ~ r LEGAL DESCRIPTION: _ (,csx- -l ~"1 Co - PARCEL NUiVIBER: Lb D e/ ► aso? , DETAILED PROJECT DESCRIPTION: 1976 ~ aW- . VALUE: r.l iF? w. " ° "4_ti ~ 4Y 4`1"~~1 h `C } ~ ..z7 » ^~~a * s ~T '~r. °x ~ ik t • ~ r.~IY r ~xiz~" 4 ~~.TY'~,'a ~ ~ COMMENTSA,.,~ 'S~ f tix.t~Cx las^~ 7 x~ s N'~~ ti a~ 7 fa~Y ~ tfsr~.. }f =c-2.tr ~h ~ i • ~ ~ ~ I/ I 1 M/I1 ~ ♦ , ` » " a ~^ft ~ F' • " ~.2, ~0 +'.x ~ S'2 ! » y, +-~T-a ,t.. } s . " :r=' ^ ~ ~ ~ n~k Ifl° i RTM rf ~ i r:a ~ ~ 37 j ~ v? 's ~ « ~ « S i tHKk~ 3 ` Y, i W~ ~ 1:~T/~/~ V V\/ ~~~t 1► ~k~4,(~rH~ ~'C } f.~ s i?~ I f E i'i' ~ ~3 Ht }.»k~~~~ br e ! 4 ~ ~ ~ ~ ~1~}KI = ~ 5 {G } 3. t~ ..raY S'.L ~Cs+'F CIRC ~.JLL"1►~D 3~ ~i Y t « SPOKANE ENVIItON1VENTAL ORDINANCE DETERNIINATIUN OF NONSIG1vIFICANCE ~ktl*M*ik**M**~~k*#*~IcM~~K*tl~**+k+l~i*+iraic*M~k***#*~~k*****~k~**M*~~Ic**~**M**k+kak**~k*~k~~h**~N~klc#~k#+lo**~*M*~** FII.E NUMBER: 95003315 LOCATION OF PROPOSAL: 10207 B. Bucloeye Lane Spokane Washingtun 99206 DESCRIMON OP PROPOSAL: Construction of a 3,470 s.f. building and a 125' self-support tower for a cellular phone facility PROPOrfENT: T'imothy J. McFadden, U.S. West, 11201 S.E. 8th. St. Suite 190 Bellewe Wa. 98004 Responsible O~"icial: James L. Manson, Dinect,or c!o Lome Lakshas, Land Use Planner Spokane County Division of Building snd Planning 1026 w, Broadway Spokane, washingcon 99260 (509)456-3675 Spokane County, the lead agency for this praposal has deWxmined that it does not have a probabte significant adverse impact on the environment, An Enrnronmental Impact Stat,ement (EIS) is not required, unde,r RCW 43.21C.030(2)(c). This decision was made after review of a completed environmental cbecklist and other information on file with the lead agency. The i.oformadon is avaulable to the public on request. There is no oamment period for this DNS. [X] This DNS is issued under 197-11-340(2); the Iead agency will not aat on this proposal for the required 15 day review period oommencing on Lune 29, 1995. Comments pertaining to this checklistJdetermination must be submitted/receivai no later than 4:00 p. m., u y 13 1995. ~ w Date 99~ Signature G~-~ - a44t, You appeal this determination within 10 calendar days after it becomes fiaal: The Board of Couaty Commissioners West 1116 Broadway Avenue Spokane, washingtoa 99264 The appeal must be submittod in writing no later than 4:00 p.m., ~il~ 24_1995 You should be prepared tu make specific factuai objections. Contact above responsible official to read or ask about the procedures for SEPA appeals. ****«****~r~************~**#*~r****~**~*************«**~ A capy of the DeWrmination of Nonsignificanoe was mailed to: Applicaat Washington State Dept. of Social & Health Services Mr. Timothy J. McFadden Water Supply and Wastie Spokane County Engineer's Office Mc. Tom Justus Mc. Bill Hemmings Spokane Couaty Air Pollution Control Authority Spokane County Health District Mr. S. Edward Hayes Fnvironmental Health Spokane County Utilities Mr. David Swink Mr. Bruoe Rawls Washington State Dept. of Ecology Fire District No. 1 Bnvironmental Review Section Mr. Paul Chase Ms. Barbara Ritchie r . ~ ~ T ~ , L SPOKANE MI% . ~ , , 4~ d -7 ~ _ ~.1~ . ~ ,A►~ ~ ~ NVIRON-EN , B T~~l~ . ~ C)~~ ~ ,30 ~ SP o~ ON . SE ~ ~ , ~ • • ~ SPOTJUtB pN2A0lf1MtRAL ORDLtiAlICE . (VAC 197-U-960) 5eet'Ioo 11 10 270(1) ♦ 6I►C]CCitOHFp (cootlound) y, pe yvu kaov vhethec applleatioeu •tc Pesdlng [er aoveensaotal •pptov,sle ot ocAec ptopos+is diraetly stleetluj tho peopert7 eovacaA b! rout psopo.all yes. explalo ~ 10. 11sc aol Soveremot approval• ot peeales thsc vill be oseaed toe your p[opoSal, !t tnow Sonkane Cnuntv Building Permit 11 Ctve a bclel, ca+Dlete desectptlop of roue propow l. loeluQinj the piroooaed vse• aas the •!se of tlie yrojeet aad •ita 'bars are sevasal auescioos L cer Lo this el+ceklisc tMc ssk you co deacclbe cettain aspaet• e[ your psoposal Yeu do aot aeed ts reoast tAoss aaavars oa thts ►ase The facility will be applicant's main switching location for cellular phones in north Idaho and eastern Washington. The building will have a gross area of 3,470 sq, ft. A 125' self-support tower wi11 have various cellular antennas attached to i t. M tocatios of t1+s ptoposal. Ctve sul[ieicnt lntoraatton tee a pessoe to uadesataed the peeeLto lomtLea ot yeut ptoPosed OtOjaet, taCludLeg s •eceet addseaa, it aar. and •eetloa, tovmhiP and caasa. it 1novn. t! • pcopo"l vould oonvr ovec s tsnse•ot ata• /=wus tbs sanie ot boundscie• ot the stee(e). ttomide a 1sgo1 Asoeclptlon. atte p1aae v!elaltp saPe ana topographte tip. i[ esasoesably sva! Lble. Vbile rou •Muld wbstc •4y pLos repu! «d dT the agaaer. reu aee aot requised to dnpileate aao• os datatlsd pLeu •ubsitesA vLth aay Petslt OOplieatten teLtcd to tlLLs el+eekllsc 10207 E. Buckeye Lane ~ 13. Oon• cbs proposed aecloa lie vttldo the llaniter Seealttve Acea (ASA)1 :6a Coaecal Sevec Saevtes AreaT 4Ae Feloelq Sawt isevlen AtaT :be City ot Spoksoet (Seat Spokaoe Conety'• ASA OvetLr Zoae AtLs fer bewdseler) :o sa ooHFLsrzo et Am.ttAXr S. IIVM01MCAl. OMU21TS ~~/LWCLOA TOt Qganct Nse Oalr 1. LAJl.'il a. Ceon[al daeetiptlon ot the •ltO (eicels ona)e ( L e collltu. Aillr. •tup •loos*. sonat&toous. etl~er 1 D uhat Lo the stee9esc slopa oe the slca (approalaata peteent slope)f Less than 2% C. 'fist general ttpe• ot sotlo ata lound on ehe sLce (toe aumple. elsy. @aoe~ ~ava paat, avek)1 It you lmov tlr~ eLaoilleaeioa ot atcitdtueal •oiL. •peetty et+n ud aote psiua taesLod. d. Are thnra suc[aee ladteatloos or !►lstoq ot wwtable seile !a eM tsedlate wletalsyt I[ daseslbe. ~ N0 2 ~ • ~ sroxNre ceivixaOorru. osctIuutcx (•aAt 191-11-960) Seetioo 11 10.234(1) D CNVLR9t£afltAL LLG`Q.lTS (contlnued) Lvalustloo ioc llteatp ti~~ Ooly tstle~tt the soouec o/ «11 •nd dredga anterlal tMt vould ~ pLeed Ie oc temoved [com CAa 60efAce wster os vocland• aoI lndteate the accs o[ the •!ts tl+at vwld bs at(sctcd. IedlcaCa the soucee o[ flll o.teeiai ' N,/A (6) Ylll the prooo.sl sequls• surfsee .ntec V~thdraYal• oc dlvsrslonat C1ve a =eaatal deaerio- clen. puipose. and approsloate Qwnsttles. Lt knwa 1\o (S) Doe• the pcopooal lle w1tAla a 10"ea< <lood olatn! tt •o, eote loutfea oe eM •ite p Lo. NO (b) Doe• the pcooosal lnvolve aay dlsclue2ea o[ vu ts eaterlels to suslate vatstO tt go, deaerlbe the Crpe oi vaste ae►d antic[pated woluae ol d1eeAarte. NO . e. croueta (1) Vt11 «oundvatet be vtelidrava. oe vlll vater be dtsehasged to =sontdvateet Cive Seaecal dese'si9sloa. pnrPoss, aad approxtusts auaatltles. i[ 1a+own N0 (2) Osecrise varta aacectal eRac vill ee dieeAaeSeA ineo the Seouod (won septlt tadt• o[ otM[ s•oteary v.see cceaaaat taetltcy De.scibe the ieaerai •lse ot the systas* the oaabar ot Aouscs to bc •eeveA (il applieable) os the nmenr ot persow the qaeee(s) stie espaetse te serre None - Fac i 1 i ty wi 11 be hvoked up to sewer (7) Osoeeibe anr systees. otAet thae RAose desigACd lor the dtspo wl ot ssattaty vasee. tnetalled fot the purpese ot dlscharslai flulds batmv the =touoA suitaee (taelado• qacer• sueA •a tsose tor the dlsposal of atote vater or dralaage tcoa (leos dratoa). Deseribe elra trpc of srsces. tbe asonne o[ aateeiat eo bt A,lspossd o( thftutA the syetes aaE CM type• ot mats[tal• t ltlcely to be Qlsposed e[ (lneludlng aaeaMal• vhleb .ar eatne the etistm laadrectaaely ebsontA •pllls or a• a eesult ol ttrett=heios acsi•itles) None (4) y! U anr eAamtcale (espeeially otgenle •ol+►ent• ee oettroleuo fusls) se •to«d !o •Lovt- scoaa4 or uadec=rowrd •tor•se taakwi I[ no. vl+at qps• aQd anaatlttes ol saterLa1a vill sa itorcd• There will be a 2,000 gal, above-ground tank to store diesel fue] for the back-up generator. 6 SPOIWtE EI(YIROl1lfENTAI OROIKAl1CE (wAt 197-11-960) Ssction 11 10 21011I 8. EKYdROta1ENTILL ELENENTS (tonttnued) Evalvatlon For ~:ncr u:e anly S. AN1HIlLS A. Clrcle .ny eira: and aelmals wblch hsve been observed on or near ttie stte or ere koaro to be oe or near the slte _ b1rds hawk. heron, ea91e. son9btr44 other maarmals deer. Sar. elk, eNrer, other ftsh• bass. Wmon, traut. herring. shellflsA, other othtr None b. List aey tAreatened or enaangered spectes knawn to Oe on or nu r tht itte. None t ls the slte part ot a ml9rstton route3 If so, explain Not Known d Propose0 aeasures to preserve or eance vtldlite. if iny F~one ~ s. ¢MEacY Axo HATURAL aESOUaccs a tithat kfnds ot eneryy (electrlc. eatural 9as. wood store. solar) wftl ►e nsad to ■eet the the eaapleted projaet's enerqy needs? Otserlbt vAnther ft wl11 ee uscd for Reitinq, aaavfu- turieg, etc Electric will be used for lighting and running the radio equipment. Heat will be gas. S uould yaur projett .rreec the potenttal use ot so1ar eaerSy Oy aqjteeet properttest it so, generally Qe9tribe No C. What Icinda of enerqy eonservattoe teatures are ineluQed In tAe plans ot thtt proposall Ltat otAer orooosed aieatures to reduce ar control enerqy IRqacts. It aay. Insulation per Code will be used. : 7. epvIaaNMENtu Hciu.ni A. Are there •ny envlronuental Aealth Astards, 1ee WdiRg expowre to toxic eheuiuls, rtsk of tire . and exploslon. spf11. or AasarQous vatte, tAat eon10 oaur as a rssult of tA1s proposalt ft to, atscribe. Wo (1) Ocscrl0e •pecisi saerqencr se"O nte tAat st9ht Oe repnired. N 6 . . ~ • ' SPoTJWL QiVtROMMV= ORaIlWtCL (VAC 147-11-960) Seetlon 11 LO 230(1) a arvMuMMa. cuDMKrs (co„eiouee) Svalu.ctoe foC Aaeatj Yst Only ~ APpcotlmatelr Aov uany pcople would the eoapletad Ocojaec dlgp Lcel None k Pcopossd sessures to avold of ceduee 4lmplaemenc lnpaet*. i[ anyt None 1 feopoeed seaeates to eaouse the propossl 1• coopatible vlth esieelot aad psojaotad latd umes aad plaes. u .ar None 9 {lOUS 111C • Appro:Latelr how aan7 unlt• voull be pcovldad. l[ •arl ladteaes vhetlue htgM, aLddtr. or torlrycose houstn( f -0- b Approsluately Mv a.ar uatts. !1 aar, voule be ellate+atedt Indleaee v1rtMs 1►lgM, ddlle-, ot lowtneeme houatag -O- e TeopeseA sessure• to reduee or toactol housin6 lmpaets. i[ seyt None io. Astuezics s. lfbst io tha talleac keisAt el aAy Ocaposad sc=vetuta(a), net ieelnalnt aateeosef SAat t• t!►e O Katipal extetlow butldlas rcerlal(s) psoposadt 125' tower heiqht Piasonar,y block construction for the building b Nat vievo in the lesadiats •leinicr vould bc aiteeed or obsetnecadt None ' t •eoposad wssouge• to eeQnes ot eootsol seachatle Upaees. l[ •eq►t ~ None u Ltar: ANo tLAu = • illue typs ot 1ight er gLce vill ehe Peopoul Peodueel SRMt tl.sa of day vauld it adwly ouuel None b Could litbt or SLre trom tM IinliibaA peojecs 1e a "tetp bazasd os lntsetets vttA vLwt No C. What aziscles stf-Otca soueele• of llgbe o< < Lt* may •[tset yatt ptapesdf None d. Tropased seasnres to reduee et eonttol 11gAe aad gLrs Lpaees. !t aoye • None e . . SPORAIIL QiViQOHldNiAL OADINIWCL (vnC 191-11-969) Seccloa 11.10 230(1) s 13lvtR01RQlf'.A1. CLMCM (conciowee) Lvaluatioa [ov Ataoer Oae Only t Rov eaer vehleula. trlp• per e.r vould be genarated by the eoopletcd pcojnetl tt 1tnovn. tedteate vhen pwk voulA oeeor 6-10 trips per day at various times. s Teepoied ueuueao to re4uCe or eontrol etaaspo[tatioa lapeets. it •nrt None , IS PUELIC SLRVtCLS a Stould efie psojset tamnit Le aa Incteadred eeed for publlc seroleas (for esas9la. liee psoteeeioa. Qol:eo pcotectiaa. Aaalth eaTe. serools, othet)! II •o. seoecally daseslbe. N0 b ProPorsd saasusei to rcduee or control Olcaet lupaet• on publte ssrrteea. t• usyt Plone 18 11: ILt : tYS • Ctrels ud~l,~ta• rsentl~ ~•~iL e ~e the ~ftee ~laecslett~ AaCYLal `ts, rater ~ra[as~ §acvies. ktilap!►one ~~tacy •ava~ •eptle tistem. otFies. p De.esiba the ucillcier cAac sse propoited tor the projeet. tAa ucllitr provldina tl+s •er►lee and cf►n pcnesai cenaceuetion aetlv[tle• oa the •ite oc io the lusedLte vltletty vAteA dsAt be aeeded. , Electric Fiber optic and teiephone - U 5 WtSI C. SICHANRL ~ 1. the ur►decslined. svea: vsder tba paraitr of petjuq th.t the above eespotiss ara made tsvthiully aed te the Qeat et ny kaevlaga. talso undacscsad ehae. •lould tAese bn aer vilital wt*e.pr.seat.tioa or viiitni Letc ot tnU Qisnlooues oA q paet. tM a ea mq vltbdssv aay deteeoin.tioa ol aoeu i;attteaeea ehas ic dehc lssue Ie raitu+ee upon ch!• el+eetliat. o.«= 6/20/95 .e,p,orat Timothy J. McFadden, Agent for U S WEST NewVector Group (rls"a rriec ot ''pPe) ~ /=opanene, _:!f" N ,ddsa.. = 11201 S. E. 0 8th Street, Su i te 190 (Sl nacu[e ~pp6 (206) 949-6f86 Bellevue, WA 98004 .eToon co.p,Qu,g for,- Timothy J. McFadden o.~., 6/20/95 ft,,,e_ (206) 949-5186 C D h~' p• roa srur nsc oM.t ~ St.lt amber(s) vavievlaj et+eekltsc: sssed o thie •t&t[ tevlav ot the aav! ~eatal ebaekllae •nd ottiet pettlaent ln[enatloo, the stattt e A. Y Ceaeludn• tlut tl+eee a[e ao probaele oilaltiuat •dreesa lapaets aed ceemaaeeo a d4tee+aleatloe o[ nonriani[l,eanea. S~A s. Coneludas clsac proesble slsnilieaec advae•e ea.iron.nacal Lpeeco do esiat [or eM euen et Deoposal aed deaaasode amietfaesa deesr- r,~G ~ .loaeioa o[ 4onsigoitieaxs wlth eoodlcioar. C. Coaeludes tluc cQera asa propaDie .tgnLttuot ad•ec•e aoviroa.eotal Loaet• aea sseomaeds a datetsieattoa of eisaUieaee.. TLLLKC TLS - !13 00 10 ~ ~ Ji *AGRA AGRA Earth & Environmental. inc ~ Earth & Environmental W?9111 Sharp Avenue ~ S,,dP u Spokane Washington U S A 99201 •2422 ' Tel (509) 325-0104 ~ 23 February 1995 Fax (509) 325-0212 ~ US West NewVector Group, Inc. OFFi~taL PUSUC DOCU~IENT Construcbon Group SPOKANE COUNTY ENGINEEA'8 OFFlCE 3350161st Avenue SE OPtIQ NAL ~ ~ Bellewe, Washington 98009 pRr.UECT ~ sosE, M1 TtA►i, # 1 .5-1z P ' Attention: Mr. Michael Galla9her L`fo C'~ra, { ~ ~ Subject: AEE Project No. 12-1242-00 Subsurface Exploration and Geotechrncal Engineering Study RECEIVED ~ Proposed Spokane MSC Sfte, E. 10400 Mont9omerY SPOKANE COUNTY , Spokane County, Washington M 12190 ~ OIV1 ILDING ~ Dear Mr. Gallagher. BY~ ~ ~ ~ AGRA Earth & Environmen t In ta ~ c, (AEE) is pleased to present the results of our Subsurface Exptoration and Geotechnical Engineering study conducted for the above referenced project. Our ~ services have been performed in accordance with the scope of work contained on our Confimnation of Budget and Scope of Work letter to you dated 14 February 1995. Authorization to proceed with this study was given in your facsimile transmittai dated 8 February 1995. This report has been ~ prepared for specific application to this projeci by US West Nev#Vector Group and their agents, in accordance with generally accepted geotechnical engineering practice. ~ SITE AND PRaJECT DESCRIPTION The project site is located in the East 10400 Block of Montgomery Drive in ihe Spokane Valtey, in the NW 1/4 of Secdon 8, T25N, R43E in unincorporaied Spokane County, Washington. The sfte is ~ bordered by railroad right-of-way to the north, undeveloped lots to the east and west, and asphaltic- concrete paved Buckeye l.ane to the south. The southern majority of the sde is relativety flat, wdh the northern margm rising moderately to the north, with total topographic relief estimated to be on ~ the order of 20 feet. No surface water was observed on the site at the time of our explorahon program. The property lines of the subject parcel, as well as the approximate locations of the test pits aocomplrshed for this study are shown on the Site and Exploration Plan, Figure 1. Test pit logs ~ with Interpretive descnptions of subsurface conditions encountered at the exptoration locabons are also attached. ~ We understand that development plans cail for construcflon of an approximatefY 3,400 square foot , single story CMU block bwlding on the subject site. Immediately adjacent to the east side of rihe ~ Enyirieeruig 8 Emnonmenla! Servtces ~ . AGRA Earth & Environmental, Inc. 12-1241-00 US West NewVector Group, 1nc. 23 February 1995 Subsurface Expforation and Geotechnkal Engmeering Study-E.10400 Montgomery Page 2 building wdl be a 125 foot tall, free-standing telecommunicaUons tower. Asphaltic concrete paved parking areas and aocess drives wll be inctuded in site development. Water and sewer services are reportedly currently stubbed at the southwest comer of the property, and power and gas are reportedly avaitable near the intersecfion of Darbmouth Lane and Montgomery Orive. ` Subsurfaoe Exploration Program r Our field exploration program for this study conststed of digging seven backhoe-excavated test pits r Ot1 the ptOjeCt Site. The approxtmate locagons are illustrated on the Site and ExpioraVon Ptan, Figure 1. The test pits were excavated with a rubber-tired backhoe under subcontract to our firm, and ranged in depth from 7 to 10 feet befow the ex,sting ground surface. The test pits were continuousty R obsen►ed and logged in the field by a geotoglcai engineer from our firm. Test pit locations wefe obtained by string-tine taping and pa+cing wdh dje and of a hand-held compass from property comers that had been established by others prior to our expioration program, and should be considered accurate to the degree implied by the methods used. . ~ . R The test pit logs encfosed with this letter are based in interpretat~ons made in the field and lndicate ~ various types of soils and materials encountered in the test pits. The retative density of soils indtcated on the logs are interpretire descriptions based on the excavation characterisUcs, evaluation of ihe excavated soils and stabiiity of the trench sidewalls. The logs indicate the depth tT of sUata or where characteristics of the straie changed, although changes indicated may be gradual. The nature and extent of variagons in subsurface condrtions between the test pit locaflons may not ~ become evident untif construcgon. if variations then appear evident, jt may be necessary to e~ reevaluate the recommendatlons of this report. SUBSURFACE COND1T10NS The subsurface exploranon program for this ptoject consisted of advancing seven backhoe- ex,cavated test pits to depths ranging from 7 to 10 feet betow existing adjacent grades to evaluate soii conditions. Deiaited interpretive logs of the matenals encountered in our explorabons are attached to this report. ~ ~ Soil conditions exposed m the lest pits advanced across the site were fairly consistent, and generally disclosed loose to medium dense, tan-gray, sand, gravet, cobbles and boulders to the full depths ~r explored. A topsoil horizon was absent from all test pits locations except TP-1, where an approximately 9 inch thick organic-rich topsoil layer was observed. The granular soii deposit was interpreted to represent allwium deposited by ftood waters that covered the Spokane area several ~ times in the geologic pasL We obsenred bouiders greater than 3 feet in diameter at various locations on the site, apparently generated dunng past gravel mining actnrities. Bouldets are considered typical in Spokane Valley sediments, such as those present on this site, and boutders of varying ~ sizes should be expected to be encountered to the fuil depths of site excavaUon for this projecL We JL understand than an approximately 10 foot ihickness of the native alluvium had been removed from - *AGRA ` Eerth & Environmentel ~ ~ ~ ~ I r AGRA Earth & Environmental, Inc. 12-1241-00 ~ US West NewVector Group. tnc. 23 February 1995 ► Subsurface Exptoration and GeotechnW Engineering Study-E 10400 Montgomery Page 3 'r the site for use as roadway embanionent fili, accoundng for the missing topsoll over most of the site. ~ A 12-inch diameter steel pipe was encountered In test pft TP-1 with invert etevation approximatety 4 feet belvw existing site grades. This pipe may have been part of a previousiy existing inigadon system, and is reportediy not a part of the high-pressure petroleum product plpeline that is marked between the site's northem boundary and the railroad dght•of•way to the north. Groundwater seepage was not encountered in our test pits at ihe time of excavation, and site so11s appeared to possess moisture contents at or below moisture conterrtts necessary for adequate compaction if the site soils are to be utilized as structural fill. Groundwater conditions and soil moisture contents can be expected to vary, depending upon changes in season, precipftagon pattems, stte utilization, both on and off-stte, and other factors. T CONCLUSIONS AND RECOMMENDATIONS i We understand that the proposed project consists of construcUng of a one-story, grouted CMU block , communications buildjng and a 125 feet tall, 3 legged, self supporbng cormmunications tower, with associated paved parking areas and access drives. Based on the subsurface condiflons ' encountered In our iest pits, the proposed project appears feasible from a geotechnical standpoint, provided that measures are taken to remove and recompact the existing site soils, or replace them 21 with suitably compacted structural fi11 beneath foundations, pavements and floor stabs, to provide a suiiable bearing sirata far founding the proposed improvements. ~ Site Prepa~ation Based on our undersianding of proposed site grades, we assume that the proposed improvemeMs ~ will be matched dosety with eaustiing site grades. Prior to site grading, any site surface water runoff and groundwater seepage shouid be collected and routed away to a proper drainage In order to facilftte work and subgrade constructon. Once surface and groundwaier are controlled, all btniding, ' tower foundation, pavement, srdewalk and aN other areas to be graded should be clesred of all grass, weeds, brush, sod, topsoil and uncontro(led fiII materiats. We estimate that the thickness of the crganic-nch upper layer will be vanable in the area to be developed, but will likety be less than ~ the 9 inches observed at the TP-1 location over the southern majority of the site. After removal of any existmg soft soils, uncontrolled fifi and other deleterious materials In the areas to be developed, ~ ihe resulitng excavations should be backfilled with uStructural FiII" as outlined in this report. The topsog generated during the strrpping process may be stoclpiled for re-use in landscape areas, or wasted off-site rf exce.ssnre quantities of orgarncs are present. tt shoutd be noted that if stripping Ls done dunng wet weather or wet site conditions, the volume of disturbed matenal may be Increased considerabty due to softening of the siltier portions of the underlying site sojls. Stripping of vegeiadon and unsuitable soils should reveal loose to medium dense sandy gravels, ~ cobbtes and boulders with variable silt contents, based on aur exptorations. Upon compledan of IL stripping, the loose to medium dense sandy gravels In the areas to be filled should be scarffied to *AGRA i - Earih & Env/ronmenta/ ~ . ~ AGRA Earth & Environmental, Inc. 12-1241-00 US West NewVector Group. Inc. 23 Februery 1995 Subsurface Exptoradon and Geotechnical EngMeering Study-E.10400 Montgomery Pege 4 a depth of 6 inches or more and compacted such that the upper foot of the subgrade has achieved a minimum density of at least 90 percent of the modified Proctor maximum dry density (ASTM:D- L 1M for the material. Further structural fill discussjons are presented in the foliowing section of this report. The above assumas UW earthwork v+nli be performed during relatively dry summer weather. . As is typical with sites containing silty soils, the materiais are moisture sensibve and are readiiy subject to disturbance when over their opbmum moisture content by more than a few percent Thus, depP.nding on tlhe judgement of the geotechnical engineer, preroiling of the subgrade may be waived to avoid softening of the natural subgrade. Any soft, wet or organic-rich soils disclosed by preroliing should be removed and repiaced wtth structural fill as discussed telow. To reduce site dLsturbence, the contractor should minim¢e traffic over prepared subgrade areas, and direct site surface and groundwater away frorn work areas. In wet site condftions, the use of a worldng surface of quarry spalts may be required to protect the subgrade, especially from vehicular traffic. Structural Fiii All fili material placed in buitding, pavement, and non-landscaped areas, and for backfiil of utility tremhes, should be placed in accordance with the recommendations herein for structural fiil. Prior to structural fili placement, the surfaces to receive structural fill should be prepared at a minimum as previousty described. All structural fill should be free of organic material, debrts, and other defeterious matenals. The lndividual parUcle size of soiis used for fiii should be less than 6 inches in diameter. Site soils can be used as structurai fiII provided Uheir moisture condiiions permn compacgon to recommended relative densities presented below. Moisture contents should be expected to vary in both lateral and vertical extent across the site. Structural flll should be placed in Ofts no greater than 8 inches in loose thickness and each lift shoutd be compacted to a minimum of 90 per+cent of the modified Proctor maximum dry density as detemnined by the ASTM:D-1557 test procedure. All sUuctural fill below foundations, floor siabs, and paved areas shouid be compacted to at least 95 percent of the abave maximum. We recommend that a representative of AEE be present during gradhng, so that a suitable number of in-place density tests may be conducted as sUvctural fill piacement occurs. In this way, the adequacy of earthworic may be evaluated as it proceeds. The suitabiidy of soiis for sUuctural fill use depends pnmarity on the gradation and moisture content ~ of the soil when it is placed. As the amount of fines (that soil fraction passing the U.S. No. 200 sieve) lncreases, soil become increasingiy sensitive to small changes in moLsture content, and adequate compaction becomes more difficult or impossible to achieve. Generatly, soils containing more ftn about 5 pencent passfig the No. 200 sieve, by weight (based on the soil fraciion passing the U.S. No. 4 sieve), such as some of those present on this sfte, cannot be compacted to a firm and non-yielding condition when the moisture content is more than a few percent above optimum. The *AGRA = Earth & Environmental • . ~ ~ AGRA Earth 8 Environmental. inc. 12-1241-00 ~US West NewVector Group, tnc 23 February 1995 Subsurface E.xpbration and Geotechnlcei Engineerfing Study-E.10400 Nlontgomery Page 5 wt optimum moisture content is that which yields the greatest soii density under a gnren compactive j effort. It should be assumed that the site soits will be below optimum moisture content dunng much ~ of the year. ~ The use of on-sde sods for structural fiil will require strict control of rnoisture content during grading. Setective drying of over-optimum silty soits rnay be achieved by scaurifj►jng or windrowing surticial materiats during extended periods of dry weather. Solls which are dry of optimum may require i- moisture to be added by the use of water trucks and thorough blending to facilitate a uniform ~ moisture distribution prior to compaction. In the event that inctement weather or wet site condiflons preciude the use of on-site soils or non- ~ select materials as stuctural flli, we recommend that only pclean", free draining coarse sand, gravel or a sand and gravel mixture be used. "Clean" free draining import fill should also be used for ali backfill within three feet of any below-grade and retaining walls. If "clean° import Ml is required ~ durin9 wet site or wet weather conditions, such materiats shouid generally contain less than 5 percent passing the No. 200 sieve, based on that soil fraction passing the U.S. No. 4 sieve, with a minimum of 50 percent retained on the No. 4 sieve, and shouid not contain discrete particles greater , than 6 inches in diameter. It should be noted that the placement of structurai fill is in many cases weather dependenL Delays due to inclement weather are common, even when using select granutar flii. We recommend that site grading and subsurface ublity work be scheduled for the dner months, if at all possible. SHALLOW FOUNDATIONS - EQUIPMENT BUILDING We recomrnend ubiidng an aliowable bearing pressure of 2500 pounds per square foot for shallow footings founded in the loose to medium dense sands and gravels wjth varying cobble and boutder contents encountered at our exploration locations. We recommend the equipment storage buiiding footings be at least 3 feet deep for frost protecUon. Equipment building foundagon subgrade soUs shoutd be compacted to a firm and unyielding condihon, v+nth a minimum compacted density of at least 95 percent of the modified Proctor (ASTM D1557) maximum dry density for the material. A minimum of 1 foot of suitable site soils or imported granular fill soils should be placed atop the prepared subgrade end compacted to the degree referenced above Total equipment buiiding foundation setdements shouid be less than 3I4 of an inch, with differengal setttements on the order of one-haif of the total setttements wdh foundation subgrade preparation performed as per ihe above recommendaUons. M AEE representative should be onsite to observe subgrade preparation and fiII placemeat procedures, and perform a sujtable number of m-place density tests on the compacted , subgrade and overlying structural fill tayer for the above settlement estimates to be considered vatid. tn MAT FOUNDATION - TOWER k The gravelly sotls encountered below depths of 6 feet in the area of the proposed tower woutd provide suitable beanng capacity for the communications tower if constructed on a mat foundation. *AGRA r - Earth & Enwronmental ~ 07~ ~ ,t ~ AGRA Earth & Environmental. Inc 12-1241-00 US West NewVector Group. Inc. 23 Februery 1995 ~ Subsurlace Explora►tion and Geotechnical Engineering Study-E.10400 Montgomery Page 6 A maucimum allowable verUcal bearing capacity of 5,000 pounds per square foot (psf) may be used ~ for mat foundafions constructed wnth a mmimum embedment of 6 feet and into undisturbed, sandy ~ gravel, cobbte and boulder soils. The subgrade should be proof-rolled, moisture conditioned if necessary, and compacted with suitabty sized equtpment such that a fimn and unyielding surface is ~ achteved. A minimum of 2 feet of suttable site soits, compacted to a minimum of 95 percent of the J modified Proctor ma~cimum dry density, should be placed atop the prepared subgrade to provide a I surface suitable for support of the above referenced allowable foundation bearing pressure. The structural fill pad should extend outside the edges of the proposed equipment buiiding and tower mat foundativns a distanoe at least equal to the depth of the fill pad, in order to provide uniform support ~ within 81 vertical to 1 horizontal prism extending downward from the lower outboard edges of the foundators. The pnepared subgrades should be obsenred by an AEE representative, to verity that the actual foundation subgrade conditions are consistent with these assumed during preparation of _ these recommendadons. The recommended allowabie bearing capacity may be increased by one- thlyd to resist short-term transient loads such as wind and seismic forces. The anUcipated uplift loads may be resisted by a large concrete mat foundation servjng as a dead weight. ~ Laterai or shear loads appred to the footings may be resisted by a combination of passive pressure against the side of the footings and/or shear fnction resistance along the base of the foundation. Passive pressures may be expressed as an allowable fluid pressure of 300 pounds per square foot per foot of embedment into undisturbed native sands and gravels, or properiy compacted structural , fill composed of site soils. We recommend that the upper 2 feet of structural fill, prepared as presented below, be neglected for passive pressure resistance. For concrete cast against the compacted sand and gravel bearing surface, we recommend that an allowable base friction coefficient of 0.40 be used in design. DEEP FOUNDATION - TOWER Based on the conditions encountered in our exploraiions, it appears feasible to consiruct convenUonal dritled pier foundation elements for tower support. Hard drilling conditions shouid be ~ expected due to the gravef, cobbles and bouiders encountered 1n our test pits. The pier consVuction ' contractor should be prepared to remove boulders from the pier excavation to the full depth of the foundatlon. The foundahon conVactor should be prepared to case the entire length of deep foundations, to prevent caving and maintain cantinuity of foundation concrete. Since our , exploratons were performed with a conventional backhoe due to schedule and budgei constrants, we cannot veriiy subsurfaoe conditions at the likely depths of deep foundation etements at the time of preparation of this report. The allowable deep foundation end.beanng and skin frichon values ` presented below were developed for another project nearby the subject site, founded in the sam ailuvial deposit, and appear to be appropriate for the site soiis, based on the conditions observed in our test pits. We should be allowed to verify that subsurface condMons are in accordance with ~ the assumptions and methods uUlized in formulating the foliotinnng recommendations for the values contained therein to be valid. ~ AJAG R A ' ' ' Earth & Envlranmental ~1 • ~ AGRA Eardh & Environmentat. tnc. 12-1241-00 US West NewVector Group, Inc. 23 February 1995 Subsurface Exploration and Geotechnical Engineering Study-E 10400 Montgomery Page 7 For vertical bearing capacity of dritled pters, we recommend using the foilowing values for bearing capaclty, for assuming e minimum of 8 feet of embedement below the existing ground surface: Embedment Bolow Allowable End Limited End Bearina the Ground Surfaoe pearing CMEl Bearina f~ or Layer F1 8 to 14 feet 1.3 D/B 9 T5F 14 to 30 feet 3.3 D/8 13 TSF Where 0IS embedement (in feet) into each layec, and B Is the diameter of the pier in feet. For frictional reststance, acting both downward and in upiift, we recommend using the following 811owabte skin friction values. These recommendations are for thai portion of the pier embedded telow 2 feeL If the c.asing used Is to be left in place, the annular space between the casing and tt►e sides of the pter excavation should be compietely filled with concrete for the following skin friction values to remain valid. Embedment 8elow the Ground Surface A11owable Skin Friction (~TS) 2 to 14 feet 0.25 TSF 14 to 30 feet 0.40 TSF For lateral pressures, we assume the pier wnll be relativety rfgid and will act as a pofe. The interacdon between a pole and the soil Is complex, and may be modelled by elastic methods. The passive pressure approach presented hereln Is more sUrafght-forward, and Is conservative by neglecting redistribugon of vertlcal stress and shear force at the pler bottom which would likewise ~ serve to re.sist lateral loads. We recommend using an aDowable passive pressure of 300 pounds per cubt foot (expressed as an equivalent fluid unii weight), acting over 2 pier diameters wide by 8 pier diameters deep, neglectlng the upper most 2 feet of embedment below the ground surface. According to NAVFAC Design Manual 7.2, a lateral deflection equal to about 0.005 times the pier length would be required to mobilize the allowable passive pressure presented above. Higher detlection woutd rttobilize higher passive pressures. The factor of sefety with respect to ultimate passive pressure Is 1.5, which Is commonty applied to transient Hnnd or seLsmic loads. Stab-On-Grade Ftoors " The slab-on-grade floor subgrade should be prepared in accordance with the previous site preparation recommendations. The slab-on-grade subgrade should be founded on pre-rolled and compacted native soii, overiain by a minimum of 2 feet of structurat fill compacted to a minimum of 95 pencent relative density, as stated above. Any existing undocumented fiII should be removed to nadve sotts to minimfze floor settlement. We recommend the floor slabs be underlain by a nominal 44nch thickness of washed rock or pea gravel containing less than 3 percent passing the No. 200 sieve, based on the solt fraction passing the U.S. No. 4 sieve, with minimum of 50 percent retained OAGRA ' Earth & Environmental s . •w "p n ~ AGRA Earth & Environmental. Inc. 12"1241"00 US West NewVector Group, Inc. 23 February 1995 Subsurface Expioration end Geotechnical Engtneenng Study-E.10400 Montgomery Page e r on the No. 4 sieve, and a maximum particle size of 1 inch. This fill is intended to serve as a capillary break. An Impervious moisture baRier shouid also be inciuded between the slab and the capillary break matedal. A few fnches of sand on top of the moisture barrier can help reduce damage to the barrier material during the slab pour and finishing operation, provide a levellmg course below the ' slab, and aid in curing of slab concrete if dampened immediatety before stab concrete placement. • The stab should be isolated from walls and columns to reduce the effects of possibte differential ~ settlement ' Psvement Design Criteria Pravided below are general recommendations regardjng asphali pavement design. It must be recognized that pavement design is a compromise between high IniUal cast with low maintenance on one side, and lower initfal cost coupled with the need for periodic repairs and higher long-temn maintenance on the other side. As a result, the owner should take part in the development of the appropriate paving section. features which govem the performance of the pavement inciude: the stabtlity of the soil subgrade; the presence or absence of moisture, free water and organics in the subgrade; the fines content of the subgrade soits; the iraffic volume; and the intended use. 8esed on the faidy consistent density and composition of the materials encountered in our explorations in the mwgins of the buildtng area on the site, when coupled with the anficipated traffic loading, we recommend that the access drivelparking area be founded direcily upon the existing mat,eriais. Following stripping, we recommend that the upper foot of the subgrade material, as weil as a minimum of 1 foot of suitable site sals vr imported granular fill be compacted to a ftrm and ` unyielding condition at a density not less than 95 percent of the modified Proctor maximum dry densiry (AS111A D:1557). Piacement of base course can proceed direcUy upon a subgrade prepared in such a manner. We ere available to provide supplementary recommendadons during construction ff candibans fi pavemertt subgrade areas are encountered that are different than those encountered in our explorations. Based on the soil types, moisture, and density conddions encountered in our explorations, we ne=mmend the following minimum pavement sections be considered for this project, founded in a subgrade prepared as per the above recommendations: Car Parking Areas: 3 inches asphaltic concrete, over 4 inches compacted crushed rock Access Ddves. Truck Lanes: 4 inches asphalac concrete, over 6 inches compacted crushed rock ~ 4J AGRA Earth & Environmental T~ . r s AGRA Eardh & Environmental, fnc. 12-1241-00 US West NewVector Group, Inc. 23 February 1995 Subsurfece Exploration and Geotechnical Engineering Study-E 10400 Montgomery Page 9 lt rtmt be realized dW the above recorturiended pavement sections are minimum sections for a 20- year deslgn I'~fe, and wiil requlre pedodic miuntenance, as we11 as likely resurfacing wnthin that design life. The following asphatt equivalency factors may be used to devetop altemative pavement secgons: 1 inch of asphalt concrete= 2 inches of crushed rock= 2.7 inches of gravel base course. Drainage Considerations The near surface sitie soUs are somewhat silty and highly susceptible to disturbance when wet. We reoommerd that the contractor take precautions to maintain a dry construction site and protect the subgrade from d[sturbance. Water from precipitaUon or seepage should be controlied wtth interceptor trenches or pumped sumps, as needed. Final sfte grades should be set so that water does not coilect adjacent to the completed structures or atop paved surfacas. Instead, the ground surface shouid be sloped downward away from all butldtngs, parWng aneas and retaining walis so that surface water runoff may be carried to a sultabte discharge point. We recommend that the bufiding be provided with a perimeter foundation drain systern to collect any seepage water. This drain should consisi of a perforated pipe within an envetope of pea gravel or washed rock extending at least 6 inches on all sides of the pipe, and surrounded by fiiter fabnc. The drain should encircle the extenor of all foundaton walls at or below the level of the footings and all subfioor utitities which could be affected by groundwater seepage. Trie drainage systems shouid discharge by tightline to a storm sewer or other suitable discharge point, ideally by gravity. Roof and surface runoff water shoutd not discharge into the foundation draln system. Instead a separate tighUine drain system or direct discharge to the ground with sptash blocks should be used. It appears Ukely that disposal of roof and/or parking lot runoff via drywells may be considered. Runoff from bituminous coated or asphalbc-concrete paved surfaces wjll need to be directed into grassy swales prior to overflowing into shatiow inJection wells (drywells), in accordance with the Spokane County "Guidelines for Stormwater Management Site so11s have been mapped as betonging to the GaRison-Marble-Springdale associaUon (Garnson graveily loam, 0 to 20 percent ~ slopes) in the Soil Survey of Spokane County, Washington (USDA Soit Conservation Senrice, 1968). The soils encountered in test pits TP-3 through TP-7 appear suitable for disposal of stormwater via ' subsurface infilVation by shallow lnjection welis (drywelis), in our opirnon. > , 4§AGRA Earth & Eavironmental J - . AGaA Earth & Enwronmental. Inc. 12_1241430 US West NewVector Group. inc. 23 February 1995 Subsurfece Exploration end Geotechnical Englneering Study-E.10400 Montgomery Page 10 CLOSURE The conclusions and recommendabons contained in this report are based on the exploraUons accomplished for this study and on our understanding of the project. The number, locagon, and depth of our exptorations were completed within the site, schedule, and proposal constraints so as to yietd the information used to formutate our recornmendations. The integrity and performance of ~ the foundations, floor slabs and pavements depend largely on the proper site preparation and construcbion proaedures, aEE is avallable to provide geotechnical engineering servlces during the design phases of the worK as vvell as soffs and materials testing services throughout the earthw+orlc and construction phases of the project. If variations in the subsurface condittons are obsenred at that time, AEE woutd be abte to provide additlonal geatechniCat recommendations to minimize delays as the proJect develops. We appreciate the opportuniiy to be of corgnued senirce to US West NewVecior Group, Inc. on this project and would be pleased to discuss the contents of this report or other aspects of the project ~R with you at your convenience. ~ Respectfully submmed, ~t ~ AGRA Earth & Environmental, In o • 7_ .x ~ ~ . a. Jerry E n, P.E. Project n"PNA L'Vwv ~ EXPIRES 1 1 12r/ tociateJN. ooo/ onderg rd~ P.G. . .t Enclasures: Figure 1- Site and Exptoration Plan Figure 2 - Site Photos r- Figure 3- Site Photos I Test Pit Logs - TP-1 through TP-7 ~ . Fe cc: Richard BianchdBjanchi Dustrud Partnership . r il ~ '*AG RA ' Earth & Environmental r 1 ~ N ~ 3 5~ d ~ TP-, rn_2 J d , f F-'Q G fPly S- MT N 'a ~A vg L. ~ N n n - N ~ ~ TP-4 F-UL L 1 0 30 so et..p ~ t ~ SCALE tN FEET ~ ' 1 ~ ' ' -5 1 • "~C_ Ty`~°~+ _N - r ~ • ~ 1 I TP-7 • ~ . ,1 ~ . _ ~ ~,l. ...1~t,•~~ ~ . ~ ~ y ~ L jv /010 _ ~ LEGEND , •'t ! - l 1 3~ WOICATES TEST PIT NIJMBER , - • t AND APPROXIMATE LOCATtON l ~ -o ~ o~ . . ♦ , . 6uCKEYE LpNE . - ~ ~ . ` ri ORAWWG BASED ON PRELIMMApY SRE PLAN 8Y 8pP DATED 214195 c L I W.O. S-1242 US WEST NEWYECTOR GROUP, INC. W*AGRA oESiGN _J.EP- SPOKANE MSC SITE ~ Earth & Environmental ORAWN JEN _ SPOKANE COUNTY, WASHINGTON ~ 539 w snarp sueet. sufte o oATE am"15 SITE & EXPLORATION PLAN ~ Spokane, wasnington, u s.n 99201-2422 SCALE ucun FIGURE 1 ~ ~ ~ - - - , ~ ~ A61iA Eertl►8 EnwmrnmNq InG 1 i , h5{ ' ~~1a - 1 `.d • ~i ` ~ - i.vc ~ • ~ ~ t-Y I r° ~ r,~ ~ i ~ Myu ~ t~r. . w. yy~ < ti1 ~ ^ f j • t ~ 'MM1 l r !Y':~~ • s ' d ~ 1 ♦ 1 l ~ O 4 ~ ( ~ ~ ~ v►~ ~ ~ 6 n t I LOOKING SOUTHWEST FROM INORTHEAST CORNER OF SITE w o 6-1142 US WEST NEWVECTOR GROUP, INC. OAGRA DESIGN JEP SPOKANE MSC SITE Earth & Envlronmenta! ~ QRnwN JEP SPOKANE COUNTY, WASHINGTON 510 W V,hv11 C+rn#%l st .,,p 11 ,,,,r rEB 1995 SITE PHOTOS ~ scAt E KT s FIGURE 2 VWZ Q N ~ ~ / ~f~S' ~ ~~I c ~MA,~~~~lIPJ~ ~hq I' t~~1• ~ ~ . r •r v y 7~'~~~~'hj~~.~~~ 1~ rR~~y.'~v•f~ ~ :~+~I S' ( ~ 1 ~ v~ i ~ ' , ' ' ~ ' 1~,• ~ ~ S ~ ~ ' I ``'~r~''~~ ' A~ ~Op, , a..► t ~ ter'~';~~; fP~k~~d 1~ ti W W cc W A ~ , , 1• 1 , . ~ ~ = W 4=1 ~~K~ ~L b le~ ~ k~►; t ~1 ~'1 t~ r~ ~ 1~d. o>I ~ f ~ ~ • 1~ • 1 f! ~ ~ ~ v r1~~~C~ ~ ~ ~ 1 flf• ~ ` •M • +~1 ~ ~~'i~l ~ ~ 34 O ~ ~ ~ ; ;.4 ; ~ , • , .~tf ;~f, ~rb . ~ y ' ~ r 4~ ~ i, ry~~~~ 'a~~ j~l~ ~ / f • . ~ IL , .r . , ► ~ . . 1 y N ~ ~ , ~ W • ~ ~ ~ ; • ~ , ~ ~ b~„~ . r N • ~ ~ a ''F ~ ~ u' ~ ~ ~ , ~ ~ Z lvl :y ~ • i~ ~ Fa- 5~~ ~ ~ ~ o ~ , ♦ ~ ' , ~ a N on r ~ + ~u1~~ ~ 'k y ~ ~ ~ f, ~ • ~ " ~ ~ r~e ~ Z .i p s~ Q F- , ~ 9, 3000 r!. ° ` ~ ° • ~ t' ' 4 ~~~'~f~f~ , 1 • fQ,ti , a • , , 1 ~ ; ~ ' ~ ~ ' , ` ~ b~ , r ~ ; o a b y j ' Cp ~ ~ ~ , ~ t , ±~~~~i~, ~ 4I ~ l 1► ~ ~ ~ •,✓.t~ ~~t. ~ ~ 3m ~ Y •W~~ 1911wnwwNUJ v 099 vdov ~ ~ • MO ~ TEST PIT LOGS Depth.(iW Soil Ctassification 12-01242-00 Test Pit TP 1 0• 0.75 UghUy rooted grass on dark brown TOPSOIL 0.75 - 7 Loose, damp, brovm, medium to coarse sandy GRAVEL and COBBLES with ~ occasional boulders to 14 inches diameter (alluvium) Moderate to heavy caving ihroughout No seepage ~ No frast penetration observed Approximately 12 inches diameter steel pipe encountered on south sjde of test pit approximately 3 feet below exdsUng site grades Test Bt TP-2 0-9 Loose, damp, tan-gray medium to coarse sandy GRAVEL and COBBLES with occasional boulders to 16 Inches diameter (alluvtum) Moderate to heavy caving throughout ` No seepage Approxirnatety 9 inch frost penetration Tesi Ptt TP-3 0- 3.5 Loose, damp to moist, tan-gray GRAVEL and COBBLES with some medium to coarse sand 3.5 - 5 Loose to medium dense, damp, tan-gray BOULDERS to 30 inches diameter 5-10 Medium dense, damp ta moist, tan•brown medium to coarse sandy GRAVEL and COBBLES with trace silt Moderate to heavy caving above 3.5 feet depth, minor caving below 5 feet depth No seepage Frodt penetradon up to 18 irtches ~•j *AGRA r Earth & Envlronmental ~ ~ ~ i ~ Depth (tW Soil Ciassification 12-01242-00 Test Pit TP-4 ~ 0• 3 Loose, damp, tan-gray GRAVEL and COBBLES with some medwm to coarse sand 3-4 Loosw to medium dense, damp, gray 60ULDERS with interstitial sand and gravei ~ (matrbc supported) ~ 4-8 L.oase to medium dense, damp to moist, gray medium to coarse sandy GRAVEL and ~ COBBLES with trace silt s Moderate to heavy caving to 4 feet depth, moderate caving below 4 feet No seepage ~ Approximately 18 Inches frost penetration ~ ~ Test Pd _5 0-9 Loose to medium dense, damp, tan-gray, GRAVEL and COBBLES with some ~ medium to coarse sand, boulders to 24 Inches diameter throughout Moderate to heavy caving throughout No seepage Approximatety 14 Inches frost penetration Test Pit TP-6 0-2 Loose, damp, tetn-gray, medium to coarse sandy GRAVEL and C:099LES 2-4 Loose to medium dense, damp, gray 60ULDERS to 24 Inches diameter with some ~ medium to coarse sand, gravel and cobbles, boulders mauic supported 4-9 Medium dense, damp, tan-gray GRAVEL and COBBLES mnth trace fine to coarse sand and silt Moderate caving throughout No seepage Approximate 18 Inches frast penetration ~ ~ ~AGRA ~ r Earth & Envlronmental , TOI~:MWATE S R DRAINAGE REP~RT for the proposed CO CATIONS FACILITY for U.S. WEST - NEWVECTOR GROUP located at Lat 7 of Biading Sita Plan #16-87 10207 East Buckeye Lane un the NE 1/4 of Secbion T. 25 N, R. 44 E W M Spokane, Washington Architect Bianchi Dustrud Parrnership, Phoenix AZ S+P~OKAN~GIAL PUBLIC DOCUMENT C'OUNTY ENGINEEA'S UFFICE May 9, 1995 OBIGINAL F'RO►IECT# z2ffv'4 t SUeMRTqL 0 % ' 5fit 1945 Report Prepared By- RETUAN TO COUMY ENGINEER F,~F Simpsan FngineerSi In a F~ ~A°'~ o~ North 909 Argonne Road My Spokane, WA 99212 ~ 0a y oN oF ,9s PROJECT NO 13125 eV/4 * * * TABLE OF CONTENTS * * * "ZOH" PaIId VO1LL[128 C1ICUaLi0IIS Drauaage Basm Data Summanes Rauonal Formula Hydrology & Bowmng Calculations S.C S Sofls Map and Descnpaon Supplementary Map Site Topogmphy and Drauiage Map "208" POND VOLUME CALCULATIONS 1'be followmg pages contau► data for flow to the proposed "208" stonnwater retention ponds Refor to the 1" = 20' Dramage Map for the actual basw locations and bowndaries For the proposed dramage ponds with 3 1 side slopes, the pond volume can be calcutated with two components the volume cLrectiy above the pond floor plus the volume above ihe side slopes To compuie the volume at any ponduig depth, only two parameters aeed to be knowa. poad Soor area and pond floor penmeter length (both are specified on the Topography and Drainage Plan map) Volume is calculated at 6" depth for "208" treatment aad at 8" depth for storage, as fotlows At 6" depth Pond Volume =(0 5$ depih x pond floor area) +(1I2 x 0 S x 15 x pond floor penmeter) =05A+0375P At 8" depdh Pond Volume =(0 67 ft depth x pond floor area) +(1I2 x 0 67 x 2 U x poad floor penmeter) = 0 67A + 0 67P 2 0 feet 15 feet ---aj ~ A 8it_0678 6"=05ft ~ Pond Floor DRAINAGE BASIN DATA SUM]VIARIES Basin Name N/W Basin Basin Locarion northwestero pornon of site Total Basm Area 15,033 sq ft= 0 345 acre Pervious Area. 12,183 sq R = 0 280 acre Impernous Area 2,850 sq ft= 0 065 acre Lnpervious Area Breakdown "Future Expansion" Roof 2,325 sq ft Concrete PadslWalks 525 sq ft Asphalt Pavement 0 sq ft "208" Area (roof + asphalt) 2,325 sq ft "208" Volume 97 cu ft Q1o=032cfs WEST POND Pond Floor Area. (10 + 12)/2 (15) = 11 x 15 = 165 sq ft Floor Pericneter- 52 LF with 3 1 slopes on all sidcs Pond Yolume @ 6" Depth 0 5(165) + 0 375 (52) = 82 5 + 19 5 = 102 cu ft 102 cu ft. > 97 cu ft required for "208" treatment Poad is OK for "208" treatment Pond Volume @ 8" Depth ~y~ yT 0.67 (165) + 0 67 (52) = 110 + 35 = 145 cu. ft 145 cu ft> 39 cu ft required with Type "A" drywell, as per bowstnng : . OK for storage A DRAINAGE BASIN DATA S S- CONTINUED Basin Name S/E Basin Basia Location south and east portions of site of site Total Basin Area 23,829 sq ft= 0 547 acre Pervious Area. 8,570 sq ft= 0 197 acre Impervious Area 15,259 sq ft= 0 350 acre Impcrvious Area Breakdown "Proposed Building" Roof 3,510 sq ft Concrete Pads/Walks• 1,986 sq ft Asphalt Pavement 9,763 sq ft "208" Area (roof + asphalt) 13,273 sq ft "208" Volume 553 cu ft Q1o=1.lOcfs SOLITH POND Pond Floor Area, 8(16 + 22)/2 + 45(16 + 22)/2 = 152 + 855 = 1,007 sq ft Floor Perimeter 141 LF with 3 1 slopes on all sides SOuTH FnN1: Pond Voturae u 6" Depth ~ . 0 S (1,007) + 0 375 (141) = 503 + 53 = 556 cu ft i 556 cu ft> 553 cu ft required for "208" treaUnent Pond is OK for "208" treatment i p` ~ 4r,' - - ~.,1- Pond Volume @ 8" Depth ~ 0 67 (1,007) + 0.67 (141) = 675 + 95 = 770 cu ft 770 cu ft> 362 cu ft required with Type "A" drywell, as per bowstnng . . OK for storage RATIONAL FORMULA HYDROLOGY DHTE = 5/9/95 DESIGNEa = D.H.C. BASIN N/W FROJECT NAME = US WEST - NEWVECTOR GFOUP DESCRIPTIOIV = SITE DRAINAGE AT LOT 7, B5F 16-87 SUBAREA 1~.065 AGFES SUBAREA 1 RUNOFF CuEFFICIENT =.9 SUBAREA 2=.28 ACRES SUBAREA ? RUNDFF COEFFICIENT =.15 TOTAL AREA =.345 ACrES COMFOSITE RUNUFF COEFFICIENT =.2913,004347826 OVERLAND FLOW VALUES Ct = .15 L - 200 N = .4 S = .07 CHANNEL FLOW VALUES L = U TD = 0 Cf]MP'UTED VALUES DUR = 5.00 110 = 3.18 010 - . 32 QA = 0.00 ~ BqWSTRIIVG CALCULATIONS DATE = 5/9/95 DESIGNER = D.H.C. BASIN N/W PROJECT NAME = US WEST - NEWVCCTOR GROUp DESCRIPTION = SIfiE DRAINAGE HT LOT 7, BSF 16-87 t t Intensity Odev. Vin Vout Staraqe (mih. ) (sec. ) (in./hr. ) (c.f.s. ) (cu. ft. ) (cu. ft. ) (cu. ft. ) 5.0 * 3CtiU :a . 18 . ~ 2 128 9G 38 10.0 600 2.A2.4 .23 158 180 -22 15.4 900 1.77 .18 178 270 -92 20.0 1204 1.45 .15 190 360 -170 25.0 1500 1.21 .12 195 450 30.0 i8Ua 1.04 .10 199 540 --?41 35. O 2140 . 91 . 49 201 630 -4*2 9 40.0 2400 .82 .08 206 720 -514 45.0 2700 .74 .07 208 81Q -60r2' 50.0 3000 .68 .07 212 900 -688 55. O 3~ UU .64 .06 219 990 -771 60.0 s604 .bl .ab 2't-ml ! 1080 - 8 5 a 65.0 3900 .60 .06 239 1 170 -931 70.0 42' 0 0 .58 . 06 251 1260 -1 ()U9 75.0 4500 .56 .06 257 1350 -1 U93 80. C1 4804 .53 .05 261 1440 -1 179 85.0 5100 • 52 .05 269 15 JC) -1 ib 1 90.0 5400 .50 .05 276 1620 -1 344 95.0 570C~ .49 .05 ~~36 171 G -1424 100.0 6000 . 4Q .05 294 1 B00 -1 506 THE MAXIMUM STQRAGE I5 38.47518 CU. FT. * The time of conczntr-ation i s 5 mx riutes. The Undevzl aped f 1 ow out i s .3 C. f. s. ~ 1 yr•~ ..,~r~,_ ir~ ,JL::T Pur -u TEN YEAR STORM CALC RATIOIVAL FORMULA HYDROLOGY DATE = 5/9/95 DESIGNER = D.H.C. bASIN S/E PROJECT NAME = U5 WEST - NEWVECTOR GROUP DESCRIPTION = SITE DRAINAGE AT LOT 7. HSP 16-87 SUBAREA 1=.35 ACRE$ SUbAREA iRUNOFF COEFFICIENT =.9 SUBAREA 2=.197 ACRES SUBAREA 2 RUMOFF COEFFTCYENT =.15 TOTAL AREA =.547 ACRES COMPOSITE RUrydrF GOEFFICIEN7 =.629890310786 OVERLAND FLOW VALUES Ct = .15 L = 1 Z6U N = .Qib S - .012 CWAiVNEL FLOW VFiLUES L = 0 TD = 0 COMF'UTED VALUCS DUR = 5.00 I1Q = 3.18 010 = 1.10 QA = O.QO BOWSTRING CALCULATIONS DATE = 5/9/95 DESTGNER = D.H.C. BHSIN S!E PROJECT NAME = US WEST -NEWVECTOR GROUP DESCRIPTION = SITE DRAINAGE AT LOT 79 b5P 16-87 t t Intenssty Qdev. Vxn Vout Storaqe (min. ) (sec. ) (3n. /hr. ) (c.f.s. ) (cu. ft. ) (cu. fit. ) (cu. ft. ) 5.0 ~C 34C1 3. 18 1.10 440 90 350 10. O 600 2.24 .77 542 18o 362 15.0 900 1.77 .61 611 270 341 20.0 1200 1.45 .50 650 360 290 25. 0 1500 1. 21 .42 668 450 218 30.0 1800 1.04 .36 6 9t-I 540 142 35.0 2100 .91 .31 690 630 60 40.0 2400 .82 .28 707 720 -13 45.0 2700 .74 .25 714 Q1o -96 54.0 3004 .68 .2Z. 727 900 -173 55.0 3300 .64 .22 750 990 -240 60.0 3600 .61 .21 77E3 1080 -:302 65.0 3900 .60 .21 920 117U -350 70.0 4200 .58 .20 864 1 2-6a -400 75.0 4500 .56 . Y9 BBO 1350 -470 80.0 4800 .53 .18 895 1440 -545 85.0 5100 .52 .18 923 153E1 --607 90.0 5400 .54 .17 948 1620 -672 95.0 5704 .49 .17 9BO 1710 -730 100.0 6000 .48 .17 1009 1 Soc7 -791 THE MAXIMUM STORAGE IS 361.797904 CU. FT. * Thg ti me af concentrati on i s 5 mi nutes. 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' i 1 i. . ~ ~ ~ ~ 03 *5 .00%k I A k r~ • ~ h~ * ~ ~ ~ ~ ~ " ~ • ~ ~ ~ ~r ~ , ~ ~ . . ,3.%~ ~ ~ ' ~ 1~ t~ I'Tr~, ~ ~i - ~ ~ ~ s~ • ~ ~ t . r..~ ~ ~ , ~~~~5 ~3 I F3.- 1 ~ v,c•::: 1 ~ Or y ~z~^csn~i*z~i--,-- O r, ~ , --i ~ or 0000 ' ~ • ~ 6~. o•o~~ - , , Qy 000- y . t , 0 • ~ ~ ~1 ~i r ~ 70\ ~i ~ , t foo •~9,~~p~,~~,~~b,, ~ , ~ 0 4ziN % oop f,-+ ~ 10 • . o ~ . ool , . ~ ~ m ~ , 9~~~~ ~ ~ ~ ~ I~o ' ► ~ ' p : ~ ~ oft4 -4 ~ ~ ~ ~ I , ~ t.` 601% o~~ ~ {I~ ' %V°~ OD % ~ .0 . ~ ~ a ~ , ~ ~ ~ ~ ~Z~N ~ I~ 322 55 i' N 0°S6y23'+E # f~LTS LANE ~ -T ~ PRIYATE w ROAp ~ ~ 10000 0 I 40.00 I 99 69 ~ ~(A w p po Wr-~ ~ N 23E 0 1 81 ~QQ541~- 1 C)_ ' t►•e ~ ~ ~ ~ (jl ~ A ~ ~ . l~s~j h Q 370.08 . ' P' j 7 ~ g . , Y. . . . ; • i , - BEFORE THE SPOKANE COUNTY SUBDIVISION ADMINISTRATOR IN THS MATTER OF ) FINDINGS OF FACT, SNORT PLAT N0. BSP-16-87 } CONCLUSION AND DBCISIDN THIS MATTER, an application from William Wagstaff hae been received aad decided upon, pursuant to Spokane County Subdivision regulatione, on the 23rd day of October, 1987. The individual signing below has further been properly delegated the responaibility for rendering the decision by the Spokane Couaty Director of Planning. FINDINGS OF FACT AND CONCLUSION 1. The proposal is to divide 27.5 acres into 27 lots For the development of industrial tracte. 2. The propoeal is located adjacent to and north of Montgomery Avenue aouth of the Burlingtoa Northern Railroad tracka and adjacent to the Union Pacific tracke in Section S. Tovnship 25 North, Range 44 B.W.M., Spokane County, WaBhiogton. 3. The curreat zoning of the proPerty Ls Restricted Industrial. The proposed lot aizes, frontage and intended uaes are allowed withia this zone. 4. The Spokane Cvunty Compreheasive Plan designates thi8 area ae Industrial. The development and usee proposed are generally in accord with this planning category. 5. The required SEPA aotice was provided for thie propoeal and ageacies having a potential interest in the project were aotiEied and aeked for recommendgtions. 6. That in coasideration of the recommeaded conditione and Spokane County development staadards, the propoeel is not detcimeatal to the public health, saFety and general welfare. 7. That the project is not exempt from environmeatal reviev uader the State Enviroamental policy Act. (A Declaration of Non-Significence wes issued on July 7th, 1987 and circulated to 12 agencies for review aad comment. There hae not beea a recommendation for a mvte detailed environmental review). 8. That [he approval of the Binding Site Plan still requires individual lot ovners to comply with tfie underlying zoniag. DECISION Based upon the above noted Findings of Fact, Binding Site Plan Applicatioa BSP-16-87 fs hereby APPROVED subject to conditiona which shell be complied with by the applicant and/or sponaor prior to finalization of the binding site plan. DATED TNIS 23cd DAY OF OCTOBER, 1987. DOU S. AMS ~ Subdivision Administrator . ~ . ~ • - , . ' . . N CONDITIONS OF AQPROVAL FOR BSP-16-87 Theae Conditions of AQproval aPP1Y to applicante, heire, or aay euccessore in interest tv Qroperty PLANNING DEPARTMENT 1. That the below listed conditLOas of all Departmenta and Agenciee are binding upon the applicant, owner(s) of the property, heirs, euccessore or assLgns as well as the zoning requirements on the property. 26 The preliminary Binding Site Plan of record approval is for the property legally deacribed in the application for thi8 propoeal. 36 That the Fiaa1 Biaaing Site Plan be deaigned subetentially in conformance with the preliminary plat of record ae legally deecrfbed and advertieed. No increase of density or lot number ehall occur wfthout a nev 8pplicgtion 8ubmittal and approval. 4. The Spokaae County Subdivision Administrator shall review aay proposed Final Binding Site Plan to iasure complfance with the Fiadinge and Coaditions of Approval. S. That a Final Binding Site Plan number be indicated before the f irtal plat ie filed; sucb aumber to be approved by the Codnty Aseeeaor sad the Planning stgEf. 6s That appropriate road names be indicated. 71 That appropriate utility easements be indicated on copies of ptoposed final Binding Site Plan, for distributioa to the County Planning Departmeat, Utilitiee Department, Eagineering Depactment, Health Diatrict and applicable utility companies. Writtea approval of sgid utility easemente by eaid utility companiea muat be received aith the submittal of the Final Bindfng Site Plan. 8. That 3 current certificates of title be furaished the County planniag Department prior to filing the Einal binding aite plan. 9. The specific and detailed developmeot plan will be submitted for Planaing Department reviev and approval ae part of the building permit and prior to isauance of buildiag permita. The developmeat muat be consiatant with the approved zoning. 104 That a plan for water facilitiee adequate for domeseic eervice gnd fire protection be approved by the water aupplier, Fire protection district, Spokaae Couaty Buildiag & Safety Department and County health guthoritiee. The agencies wfll eertify on the WATER PLAN, prior to the filing of Che finel plat or arty phase of the preliminary plat that the plan ie in conformaace vith their respective needs and regulatione. The WATER PLAN and certification wfll be drafted on a transparency auitable for reproduction. The purveyor will also certiFy that appropriate contractual arrangemeat9 and echedule of improvemeats have been mgde with the plat sponaor for conetruction of the aater eyeCem in accordance with the epptoved WATER PLAN. The time echedule will provide fot completion of the wates ey9tem and inspectioa by Che appropriate health authorities prior to applicatioa for building penaits within the final plat. The arraagements or agreements will include a provision holding Spokgae County and the purveyor haraaless from claime by any 1ot purchaser refused g building permit due to the failure of the plat apongor to satisfactotily complete the approved water system. The plat epoaeor shall also sign the WATER PLAN to conficm the coatractual arrangements or agreemeats. 0 • . r ~ A. r Conditions of Approval BSP-16-87 cont'd Planning Department Conditions cont'd The final plat dedication will contain the following statement: pThe public water system, pursuant the WATER PLAN approved by County and State Health authorities, the local fire district, County 8uildlhg ~ Safety Department, and water purveyor, will be fnstalled within this plat, and the subdivider/sponsor will provide for individual dontestic water service as well as fire protection to each lot prior to salb of each lot and prior to issuance of a building permit for each lot. 11. That no building permit w111 be issued for any lot within the F1na1 Plat unt11 certified by a Washington State licensed engfneer "that the water system has been installed pursuant the approved WATER PLAN for the F1na1 Plat", signed and starrped by seid engineer. The certification may be 1n 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 Builtp water systetrt. 12. That a survey be required prior to the filing of a final binding slte plan. COUNTY ENGINEEaIN6 DEPARTMENT 16 That prior to the flling of the Bihding Site Plan the applicant shall: A. Submit to the County Engineer for review and approval plans, profiles and cross sectlons as deslgned to County Standards showing the proposed street centerline and curb grades. These plans shall be submltted for Montgomery Orive and tFie proposed private roads within the development. These plans shall be prepared by a Licensed Professional C1vi1 Engineer. B. Subinit to the County Engineer for review and approval drafnage plans and design calculatlons showing the alignment of drainage facilities. These plans shall be prepared for Montgomery Drive and the proposed private roads withln the development. These plans shall be prepared by a 1icensed Professional Civi 1 Engineer. Spokane County Road Standards indicate that when developments have the potential to generate more than 200 trips per day, the development street system should have at least two accesses. The Instltute of Traffic Engineers Trip Generation Manual indicates industrial property can be expected to generate between 15.6 and 59.9 trips per acre, depending on land Use. Using these numb s, this property would generate between 420 and 1600 trlps ~er ac . Therefore, Phase I(the area lndicated by lots 1 throu h 7 and-lots 21 throu h 25 can be developed with only one accessg Any further develo ment be ond Phase I (the area indicated by lots 8 through 20) shall provide a second access by extending the private road to Buckeye. ~ ~ 2. That the 6lnding Site Plan Document shall: A. Provide for an additional 10' foot setback for buildings constructed on lots adjacent to Montgomery Or1ve whfch is designated as a Major (Principal) Arterial street. This setback wi11 fac3litate the acquisition of road rlght of way should it become necessary to widen ~ Montgomery Drive in the future. B. Contain language which prohiblts access to tlontgomery Drive from lot number one. . C. Contain the following statement: NARNING: Spokane County has no respohslbility to build, lmprove, maintain or otherwise service the private roads contained within or providing service to the property described in this Binding Sitp P1an. By acceptfng this Binding Site Plan or subsequpntly by allowing A building permit to be issued on property on a private road. Y Spokane County gssumes no obligation for said private road and the owners hereby acknowledqe that the County has no obligation ot eny klnd or nature whatsoever to establish, examine, survey, construct, alter, repair, improve, maintaln, provide drainage or snow removal on a prlvate road. This requirement is and shall run with the land and shall be binding upon the owner, their heirs, successors or assigns including the ob 1 igat ion to part ic ipate in the ma intenance of the pr ivate road as provided here in. • . . ~ ' . ~ f p, . . I . Conditions of Approval BSP-16-87 coet'd County Engineer's Coaditions cont'd D. Contain the followiag statement: "The private roads as shoua hereon are easements which provide a megrs of ingresa end egress Fot thoee lote withia the Binding Site Plan hgvfng frontage thereon. 36 Geaeral Conditiona and Requfremente: A. The gpplicant should be edviaed that approach pet7nite must be obtained from the County Engineer prior to the coastruction of eew driveway approachee to Montgomery Drive or prior to the conetruation of the private road fnteraection with Montgomery Drive. 8. No constructioa work is to be performed within the existing public toad right of way until g permit has been issued by the County Bngineer. All work is subject to the inspectioa and approvgl Of the County Lngineer. C. That the proposed private road system serving thie development is approved by tbe County Engineer. D. That the privgte roads vithia thia proposed developeaeat'ahall be improved to a minimum vidth of 24' Feet. This will provide travel laaeg wide eaough to accommodate tcuck traFfic. This would hvdever preclude on etreet parkiag. If on etreet parking ia co,ntemplated then the width of the proposed roade ahould at a mfaimum be 40' feet. E. That the radii et all interaectiona shall be a minimum of 30' feet. . That existing County roads providing direct acceas to the Binding Site Plan shall be improved to Spokane County Standarde. G. That all vested ovnera shall aigr► and record private road documeQta as preacribed by the County Engfneer. These documente shall be reviewed and approved by the County Engineer prior to recording the documente with the Spokaae Couaty Auditor. Recording awnbets shall be refereaced oa the bindiag site plan doucmeot. K. That the Binding 3ite Plar► shall be improved to the etanderda set forth in Spokane Couaty Board of County Commigsioaere Resolution 80-1592 ae amended, which establiahee tegulatioas for roads, approachee, drainage aad feee in new construction. That direct acceae to Montgvmetry Drive from parcele one (1) gnd twedty-five (25) is prohibited. Access to theae parcels sball be from the proposed private road aad associated easement. 4. That prior to the release of a building pecmit the applicant aball: A. Prior to the telease of building P0 mits on those parcels having frontage oa Montgomery Drive (parcels 25, 26 and 27), Montgoatery Drive shall be improved ia accordance with Spokane County Tqpical Roadway Section Number One, Secondary (miaor) Arterial Staadard. This will require the gddition of 8' Feet to 10' feet of asphalt. The installation of curb and sidewglk wi11 also be required. B. All requiced roadway improvement must be completed before building pecmits may be released for parcels 25, 26 and 27 or a bond io the amount estimated by the County Engineer to cover khe cost of conetruction of improvements shall be filed witb the County Engiaeer. C. Submit for approval by the County Engineer and the Spokeae Couaty Health Diatrict a detailed combined on-eite aewage sqatem pl8n and sutface watec diepoaal plan for the entite project or portions theteof if the project ia to be phased. b. Submit a parkiag plan and traffic circulation plan for reviev and approval of the County Engineer. The design and locatioa of parkiag atalls shall be in accordance aith atandard engineering practices. Paving or eurfacing as approved by the County Engineer will be required for any portion of the project which ia to be occupied or tcavelled by vehicles. , E. The propoeed private road ahall be constructed to 8uckeye Avenue prior to the release oF building permits on the area represented by Lots 8 through 20 or any part thereof.' 3 . . ~ . . . . • ~ . Conditions of Approval BSP-16-87 cont'd County Health District Conditions cont'd COUNTY HEALTH DISTItICT: 1. A combined surface water and sewage disposal detailed plan ehall be approved by the Spokane County Lagineer and Spokane County Neglth District prior to the iesuance of any on-site aewage dispoeal petmft or building permit foc this project. 2• Sewage disposal method shall be as authorized by the Director of Utilities, SPokaae County. 3. Water aervice ahall be coordianted through the Director of Utilitie8, Spokane County. 4. Water service ahall be by an exiating public water supply when approved by the Regional Engineer (Spokane), State Department of Socigl and klealth Services. 5. Prior to filing the binding site plat, the sponsor ehell preeent evideace that the plat lies within the recorded service aree of the water systean proposed to eerve the plat. 66 Dieposal of eewage effluent beneath paved aurfacee is curreatly prohibited. T. Prior to filing the fi.nal plgt, the sponsor ah811 demonetrate to the satisfaction of the Spokane Countq Health Dietrict that euitable sitea for oa-site sewage disposal systems are available on all lote. 86 The dedicatory lenguage of the binding aite plat will state: "Subject to specific application approval and issuance of permits by the Health OEficer, the use oF individual on-site sewage dispoe8l systeme mey be authorized." 90 The dedicatory laaguage on the binding aite plat shall state: "Use of private wella and water systems is prohibited." 10. The binding site plat dedication will contain a atatement to the effect that: "The public water system as approved by Couaty and State Health Authorities and the local fire district and purveyor will be installed withia this plat, and the subdfvider will provide for individual domestic water service as vell as Fice protection to each lot prior to sale of egch lot." COUNTY UTILITIES DEPARTMENT: 16 Pursuant to the Board of County Commissioners Resolutioa No.80-0418, the uae of on-site aewer disposal systems ia hereby authorized. ThfB suthoriZation is conditioned oa compliance with all rules and regulations of the Spokane County Nealth Dis[rict and ia further conditioaed and subject to apecific applicaton approval and iseuance of permita by the Neslth District. 2. The dedication ehall etate: "rhe owner(e) or Succeseor(s) ia inteteat agree to authorize the County to place their name(s) on a petition for the formation of ULID by petftion method purauant to RCW 36.94 which the petition iacludea the Owner(a) property and Further not to object by the aigning oF a protest petltioa egginst the formatioa of a ULID by resolutioa method pursuant to 8CW Chapter 36.94 which iacludea the owner(s) property. PROVIDED, thfs condition shall not prohibit the owaer(e) or eucceesor(s) from objection to aay asaeesment(e) on the property ae a result of improvements called for in conjunctioa with the formation of a ULID by eitheT Petitioa or reeolution method under RCW Chapter 36.94". 3. Any water service fot this project ahall be provided ia accordance with the Coordinated Water System Plan for Spokane County, se amended. '4. The dedication snall state: "Each lot shall be double plumbed for connectioa to future area-wide collection systems." r . . . . ~ ` • S . ~ Conditions of Approval 6SP-16-87 Cont'd Utilitfee Department Conditiona cont'd 5. A dry sewer connection to the future area-wide Sewerage Syatem ie to be conetructed. plaas and specificationa for the dry aewer conaection are to be reviewed and approved by the Utilities Department. COUNTY BUILDING & SAP'BTY: 16 This project may involve the storage and handling of critical materials. 21 The required fire flow for any buildiag or property development ie determined by buildiag size, type of coaetruction, and proximity of expoaurea. ttequired fire flows shall be based on an evaluation of each tiuildiag at the tme of building permit application. 3. Depending on the extent of exieting aater maina and hydrant locatioas, f ire hydrants vhich meet the minimum f ire flow requiremente as enumerated ia Chapter 6, Title 3 of the Spokane Couaty Codes may be required to be iast811ed prior to any coastruction. 4. The Department of Buildiag and Safety will cequire the applicant to identify cr'itieal makeriale and aubmit design requicemente for the containmeat prior to the issuance oE a buildiag peraait. 56 Fire hydraats ahall be located so as to be acceseible to fire gppatgtus and not be obstructed by any etructure or vegetatioa or have the vieibility impaired foc a dietaace of fifCy feet ia the direction of vehicular approach to the hydrant. 66 Specific locatioa of hydrante shall be determined by the Fire Distriet. 7. The applic8nt ehall provide verification from the Fire Distrfet to the Department of Building and Safety that provisioas h8ve been made for adequate fire protection prior to the releaee of buildiag permftA. DSpARTMENT OF ECOLOGY CONDITION3: 1. The applicaat should be aware th8t diacharge of commercial/fndu►ittfal vaetewater to on-eite systema ie uader the jurisdiction oF the Departmeat of Ecology. Such di9charges are generally prohibited. Approved thia 23rd day of October, 1987. ~ 0o c s. aMs SUBDIVI3ION ADMINISTRATOR CC: Health District Engineer UtilLties Building b Safety Applicant Surveyor Fi le Parties of Itecord . CIt' . ja8 ta ' I 0 ti~246 n N v ZA6 12 n~ ( _ . • ,~a • - - g : 100 a ~ ~ ~ ~ I ~ ~ ✓ p,~•R9 ~ ~I I ; ~2 ---us-1 g ° 1 0 n N N ao o~ trss ~ ro~,.~ ~ ~ u ~ 8 7 tn ~ ~ < h 10 ~ i Cr ~ BSP 87~ L16 t s 5 - ~14797 16500 ^ l65A0 18000 1e300 , ~UCK~YE I~VE. • _ 0 ~ 135a0 47 97 230A0 o 09;- 1 I 5~s o a 20 0 14 0 13 ° 21266 23000 N I8000 I6300 --='l - 0 8 0, 9 • ti 3~, 22 ~ 200 17 o~ a 15 0 ~ ZJ73 o p o s 16000 18300 _ ie _ q. r 7 R.~ • a;,~ z 9 Z z~ : I S ~ 17 , ~ oO Z a ~ 15466 214 0 26 27- I ~ i. ~ ~ l I ~ I ~ aCP ~ ~i o o =r )~l 7JJD Aj N r 270 29 ZI 35• 12=:65 12000 . f r s¢~~ 6 MONTGD/NE R Y OR_ 9& r 7aaN j 4 ~i O , r a L • A Q ~~~d ► : i ~ . PSG , /8_ ~ 6,4 ~t ' V 7\! ~ it • JA Ae k~ ~ ~ ~ ~ I C I~ ,~Lo oa 7 1 0 16 ~ n aa y I~J.~IJr~ ? v • - w r / ~ SPOKANE ENVIRONMENTAL ORDINANCE FD ACCEPTANCE ACCE - *~**********~~***a~**************~********~~~**~**~~~*~~~*~~'**~**~*********~*~****~**~**** DATE of DNS: July 13, 1995 O FILE rRJMBER: 95003315 IACATION OF PROPOSAL: 10207 E. Buckeye Ln. Spokane Washington 99206 DESCRIPTION OF PROPOSAL: Construction of a 3,470 s. f. building and a 125' self-support tower for a cellular phone facility PROPOr[FrNT: Timothy J. McFadden, U.S. West, 11201 S.E. 8th. Suite 190 Bslievue Wa. 98004 RESPONSIBIE OFFICIAL: James L. Manson, Director c/o Thomas L. Davis, Code Compliance Coordinator Spokane County Division of Buildings 1026 W. Broadway Spokane, Washington 99260 (509)456-3675 «***«********~*************r~~***~*~**********~*~******s********~*~*~******~************** The following attached oomment(s) become part of the checklist in accordance with Section 11.10.160 of the Spokane Environmental Ordinance and adopted policies: S,gokane Countv AiLFolludon Co, n rol A~uthoritv - attached correspondence dated July 3, 1995 A copy of this Comment Acceptance to the Bnvironmental Checklist was mailed to: Applicant Washington State Dept. of Social & Health Services Mr. Timothy J. McFadden Water Supply and Waste Spokane County Engineer's Office Mr. Tom Justus Mr. Biitt Hemmings Spokane County Air Pollution Control Authority Spokarte County Health District Mr. S. Edward Hayes Environmental Health Spokane County Utilibes Mr. David Swink Mr. Bruce Rawls Washington State Dept. of Ecology Fire District No. 1 Environmental Review Section Mr. Paul Chase Ms. Barbara Ritchie ~ Date A4 " Signaturei~ ~ w ~ . FyJ SPOKANE COUNTY CICLEAR'r¢A!!l AIR POIIUION S P Z. K A N E CONTROI AUTNORITY WEST 1101 COLLEGE. SUITE 403 • SPOKANE, WA 99201 ~(509) 456-4727 Fax (509) 459 6828 Date: July 3, 1995 To: Lorne Lakshas Spokane County Dtvision of Building and Plannmg From: S. Edward Hayes *4* Spokane County Air Pollution Control Authority Subject: SCAPCA COMMENTS REGARDING : 95003315 Following is a Iist of concernsfissues that, at a minimum, need to be addressed for this project. SCAPCA encourages proponents to contact their offices at 1101 West College, Spokane, WA 99201 for additional information. ~ All air pollution regulations must be met. * Air pollution reAulations require that dust emissions during demolmon, construction and excavation proJects be controlled. This may require the use of water sprays, tarps, spnnklers or suspension of activrty dunnp certain weather conditions. Haul roads should be Veated and emissions from the uansfer of earthen matenal must be controlled as well as emissions from all other construcUon related activities. * SCAPCA stronely recommends that all uavelled surfaces (i.e ,,ngress, eeress, par{unA areas, access roads) be paved and kept clean to minimize dust emissions. Measures rnust be taken to avoid the deposiUon of dirt and mud from unpaved surfaces onto paved surfaces. If trackinA or spills occur on paved suifaces, measures rnust be taken immediately to clean these surfaces. * Debns generated as a resuh of this project must be disposed of by means other than burning li.e., construction waste, etc...1. Failure to meet SCAPCA regulations may result in delays, closure and crvd and/or criminal sancUons. ~ Ant+! ree b~~vey~ Fa~ I ~TC]R~Vi~~TE~. for the proposed CO CATIONS FAC.II..ITY for U.S. vrEST - NEWvEcTOR GROup locatedat I.ct 7 of Binding Site Plan 916-87 10207 East 8uckeye Lane in the NE 1/4 of 5ect3on 8,T 25 N_, R 44 E'UV M Spokane, W a~bngtan Arclutect- Bianchi Dustrud Pa.rtnerstup, Phoenuc A►Z May 9, 1995 Report Prepsred Sy: Simpson Engineers, lna North 909 Argonne Road Spokane, WA 99212 &°o PRi/JECT N4./r 13125 QP 95 'Iliko ~ T.~BLE OF CON'Y'EN'Y'S "248" Pond Valum Calculations OFFICiA►LPUBUC DDCUME'IdT SpOKANE GOUPTY E#VCINEER'S UFFM Dramage Basm Data Sumrnanes OR-G.NAL PRal'ECT # ' Rattonal FQrmuta Hydralo" & Bawstraag Calcula#ftigM1-rfAL # ~ . ri-`TURNTO COUNTY ENG1NEER S.C S Sods Map and pescnpt,on Supptementaryr Map- Ste Tapagraphy and Drarnage Map "208" POND V4LUME CALCULATIONS Ihe followmg pages coatain data for flow to the proposed "208" stormwater retenUon ponds Itefer to the 1" = 20' Drainage Map for the actual basm locaUons and bouadanes For the proposed dralnage ponds with 3 1 side slopes, the pond volwne can be calculated wrth two components the volume dvectly above the pond soor plus the votume above the side slopes To compute the volwne at any ponduig depth, only two parameters need to be lmown pond floor area aad pand floor pemneter length (both ate specified on the Topography aad Drainage Plan rnap) Voluma is Galculated at 6" depth for "208" treatme,nt and at 8" depth for stocage, as follows At 6" depth Pond Volume =(0 5 ft depth x pond floor area) +(1/2 x 0 5 x 15 x pond floor penmeter) =05 A+0375 P At 8" depdh. Pond Volume =(0 67 ft depth x pond floor area) +(l!2 x 0 67 x 2 0 x pond floor penmeter) = 0 67A + 0 67P e ~ 2 0 feet 15 fe~ ~ A A 8of=067ft 6"=0.5$ Pond Floor DR:AINAGE BASIN DATA S S Basin Name N/W Basin Basin Locahon northwestern portion of site Total Basin Area 15,033 sq. ft. = 0 345 acre Pervious Area 123,183 sq ft = 0 280 acre Impervious Area. 2,850 sq ft= 0 065 acre Impernous Area Breakdown "Future Expansion" Roof 2,325 sq ft~II, Concrete PadsJVValks 525 sq ft / Asphalt Pavement 0 sq ft "208" Area (roof + asphalt) 2,325 sq ft e~ "208" Volume 97 cu ft / Q,o=032cfs ~ WEST POND ' Pond Floor Area: (10 + 12)/2 (15) = i l x 15 = 165 sq ft Floor Penmeter 52 LF witb 3.1 slopes on all sides Pond Volume Q 6" Depth 0 5 (165) + 0 375 (52) = 82 5 + 19 5 = 102cu ft 102 cu ft> 97 cu ft required for "208" treatment Poad is OK for "208" treatment ~q~ , . Pond Volume @ 8" Depth / :r 0 67 (165) 0 67 (52) 110 + 35 _ 145 cu ft Jc Ft.~,~~ ; 145 cu ft> 39 cu ft required with Type "A" drywelL as per bowstnng : . OK for storage DRAINAGE BASIN DATA S IES - COiVT1NUED Basin Nazne. S/E Basm Basin Location south and east portions of site of site Total Basin Area 23,829 sq ft= 0 547 acre O~ Pervious Area- 8,570 sq ft. = 0 197 acre / Impenrious Area 15,259 sq ft = 0 350 acre Impervious Area Breakdown "Proposed Buildmg" Roof 3,510 sq ft Concrete PadslWalks 1,986 sq ft Asphalt Pavement 9,763 sq ft "208" Area (roof + asphalt) 13,273 sq ft e j "208" Volume 553 cu ft Q,a= 1 lOcf.s SOUTH POND Pond Floor Area 8(16 + 22)/2 + 45(16 + 22)/2 = 152 + 855 = 1,007 sq ft ' Fioor Perimeter 141 LF with 3 1 slopes on all sides S.-)tJTH Fo Pir, s=tt`^F - Poad Volume @ 6" Depth _ 0 5(1,007) + 0 375 (141) - 503 + 53 - 556 cu ft v ~i 556 cu ft> 553 cu ft required for "208" treatment I Pond is OK for 4'208" treatment + r~ a - - - ~ Pond Volume @ S" Depth. 0 67 (13,007) + 0 67 (141) = 675 + 95 = 770 cu ft 770 cu ft> 362 cu ft required with Type "A" drywell, as per bowstring OK for storage OW ' RAT I aIwIAL FORI"IULA HYpROL[7GY DAT~: ; 5I 9I95 aESIG1VER = D. H. Ctl BASIN N/W P'RDJ ECT 1VAME =US WEST - NEWVECTQR GROUF= `]3E5CRI PTION =ST TE DRAI NAGE AT LOT 70 ~SP 16-87 SUBAREA 1=, 41+b5-1 ACRES A, SUBAREA 1 F:UIUQFF CC~EFF IGI E~IT = .9 SE.IBA -~''►EA 2 _ .28 AC#~E8 ~ SUBAREA 2 RUNOFF GQEFF I C T ENT = .15 TC]TAL AREA ~ . 345 ACRES L'Ol'rlPO~ ITE RUiVOFF CE7EFF I C I ENT = . 291 3(14 s4782b OVERLAND FLOW VALUES Ct = .15 L = 20[~ og/ IV = .4 S = .47 Cl-EAN1VEL F'LOGJ VALUEB ~ L - 0 TD = 0 COiYtPuTED VALUES I}UR 5.00 110 = 3.1~ j0v 1110 - . :!;2 V DA = 0.00 ~ ~ ~ BOWSTRTNG CALCULATIONS DATE = 5/9/95 DESIGNER = D.H.C. BASIN N/W PROJECT NAME = US WEST - NEWVCCTOR GROUP DESCRIPTION = SITE DRAINAGE AT LOT 7. 85P Ib-B7 t t Intensi ty Odev. V:Ln Vaut Stordqe (min. ) (sec. ) (i n. /hr. ) (c. f . s, ) (cu, ft. ) (cu. ft. ) (cu. ft. ) 5.0 ~C atlQ :3. 18 .32 12fl 9Cl 38 14. d 600 2. 24 .23 1 58 18a -22 15.0 900 1.77 .18 178 270 -92 20.0 1200 1.45 .15 190 360 -170 25.0 1540 1.211 . 12 195 450 30.0 1800 1.04 .10 199 540 -341 '35. 0 21C►C) .91 .09 241 6"%"% 0 -429 40.0 2404 .82 .08 206 720 -514 45.0 2700 .74 .07 208 810 -602 50.0 ' 3000 .68 .07 212 940 -688 55.0 3340 .64 .06 219 990 -771 60.0 3600 .61 .06 227 1 084 -85i 65.0 3900 .60 .06 239 1 17Ct -93%1 70.0 4200 .58 .06 251 12.60 -1009 75.0 450C1 .56 .06 257 1350 -1 C►93 80.0 4800 .53 .05 261 1440 -1179 HS . U 5100 .52 .05 269 15~ Cl -1 2b 1 90.0 5400 .50 .05 276 1620 -1344 95.0 5700 .49 .05 286 1710 -1 424 100.0 6000 .48 .05 ^c94 16C10 -1506 THE MAXIMUM STCIaAGE IS ~8.47518 CU. FT. * The time of concentratian is 5 manutes. The Undevel oped f 1 ow out i s . ~ c. f. s. lr~j v1E4lc-jT F'ur u TEN YEAR STORM CALC RATIONAL FORMULA HYDFOLOGY DATE = 5/9/95 DESIGNER = U.H.C. bASIN 51E PROJECT NAME = U5 WEST - NEWVECTOR VROUF' DESCRIPTION = SITE DkAINAGE AT LOT 7. BSP 16-87 SUBAFEA 1=.35 ACRES SUBAREA 1RUNOFF COEFFICIENT =.9 SUBAREA 2=.197 ACRES SUPAREA 2 RUNOFF COEFFICIENT =.15 TOTAL AREA =.547 ACRES COMROSI7E RUNaFF COEFhICIENT =.629890310786 OVEFLAND FLOW VALUES Ct = .15 L = 130 IV = .416 s = .ai2 CHaN1VEL FLOW VALUES L = 0 TD = Q CO1`'iP'UTED VALUES DUR = 5.00 I 10 = 3. 18 Qia = 1.ia , aH = o.n0 BOWSTFING CALCULATIONS DATE = 5/9/95 DESIGNEF = U.H.C. BASYN S/E PROJECT NAME = US WEST - NEWVECTOR GFOUP DESCRIPTION = SITE DFAINHGE AT LOT 79 BSN 16-87 t t Intensity Qdev. Vzn Vout Storaqe (min. ) (sec. ) (in./hr. ) (c.f.s. ) (cu. f t. ) (cu. ft. ) (cu. ft. ) 5.0 * 300 3.18 1.10 440 90 --4.jCl 10.0 600 2.24 .77 542 1B0 362 15.0 900 1.77 .61 611 270 3%4 1 20.0 1200 1.45 .50 654 360 290 25. 0 1504 1. 21 . 42 668 450 218 a0 .0 18a0 1.04 .~6 b8#n 540 142 5.0 2100 .91 .:.y1 690 6~+ 6C~ 40.0 2400 .82 .28 707 720 -1 3 45.0 270C1 .74 .25 714 a 14 -96 50.0 3000 .68 . 23- 727 9t;►G -173 55. n ~~C~o .64 .22 750 990 -240 60.0 3600 .61 .21 778 1080 -302 65.0 390U .60 .21 (320 1170 -3 5 0 70.0 4200 .58 .20 e64 1 ~60 -400 75.0 4500 .56 .19 i38ri 1Z50 -470 80. U 4800 . 53- .18 895 1440 -545 85.0 5100 .52 .18 923 1530 -607 90.0 5400 .50 .17 948 1620 -672 95.0 5700 .49 .17 980 1710 -730 100.0 6004 .48 .17 1009 1 Bo0 -791 THE MAXIMUM STOFAGE 25 ~61.797984 CU. FT. * The time of concentrat i on i s 5 mi nutes. The Undzvel oPed f 1 ow out x s ` . c. i' . s. TEN YEAR STORM CALC W*PO~ CgoYo MViNIW ~ ~ ~ - ~ - R44E Mt8 13ti0 PsH ~ Swg~Ps6 ~$g . 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Lu v.ry ~~li~u cuut- ptruit...L,ltt rupicl JxiIm uullitY; pucLt,d, 1Gu 1ow ,Iij iuk-z-a Lll putii►tlul put..ut1.11 Sela toolaote et en4 at table.