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2006, 06-29 Engineer Ltr re Drainfield SystemFROM FECEFIVE (THU)JUN 29 2006 16:03/ST.16:02/N0.6309579374 P 2 .J U N 3 C 2006 METRO ENGINEERING, INC. LD3 Czvi1 Engineering and Project Management Services ri June 29, 2006 Spokane Regional Health District 1101 W. College, Room 402 Spokane, WA 99201 Sent Via Fax # 324-1567 ATTENTION: Don Copley RE: Sewage Disposal System for 17303 E. Broadway Lot 4, Bacon's Addition Metro Engineering's Project No.: 05-315 SRHD Application No.: 05-7683 Dear Mr. Copley: This letter is to advise you that Metro Engineering, Inc. has been retained by Markham Homes to perform the design and prepare the plans for a pressurized drainfield system for the above referenced residential property. This residential property is located at 17303 E. Broadway in Spokane County. We performed a site visit on September 23, 2005. A preliminary site plan and engineering calculations were prepared to verify that a pressure system can be engineered and provided for this site. There is adequate area for the construction of the facilities. See the attached preliminary design. We request the building permit for this property be released contingent upon final design of the pressurized drainfield system. Please call if you have any questions. Thank you for the review of this item. Sincerely, Metro Engineering, Inc. Joel G. Lee, P.E. Principal Engineer cc: Markham Homes File #05-315 llbrendalos-lctterslletterslcop1ey153I 5-Iot4-3bed-pdf. doc EXPIRES 2-21-07 S. 324 Sherman St. Spokane, Washington 99202 Ph.: 509-624-9351 Fax: 509-624-8153 FROM fnij (THU)JUN 29 200E 1E:03/ST.1E:02/NO.88309579374 P 3 TED) iu; 3 ` 2006 L__� 6' MIN. 272' (TOTAL) OF PRESSURIZED DRAINFIELD 1" SCH. 40 PVC 12' ON CENTERS REPLACEMENT AREA (TYP.) 12' MIN, 10' MIN. 5' MIN. 7 SINGLE COMPARTMENT 1000 GALLON DOSING TANK co 0 5' MIN. DECK 4" GRAVITY SEWER (SEE NOTE 3) PROPOSED 3 BEDROOM HOUSE 4' S 89'53'18" W 102.97' PROPOSED BARN MIN. �--- TRANSPORT PIPE, ±60 L.F. PATIO 5' MIN.! MIN. 2 COMPARTMENT 1000 GALLON SEPTIC TANK 134" SCH. 40 PVC DRYLINE SEWER, APPROX. 90 L.F. /' /e i /EGRESS IN Iw S 89'59'33" W 102.94' 0 15 30 60 SCALE: 1 "= 30' EXPIRES 2-21-07 4 I f — — 2 "F.M.— — I � I ---PRELIMINARY I TO . BE .USED AS ]1NAL DA J METRO ENGINEERING, INC. S. 324 SHERMAN SPOKANE, WA 99202 (509) 624-9351 PRESSURIZED DRAINFIELD DESIGN 1730.3 E.BROADWAY AVENUE LOT -, BACON'S ADDITION 11RranrlalriwnglOn lW)n GitcA51115-I Td rlwn Mnrial R/7q/9O0R 2•�7•11 PM .Ildiq C) 1•nfl DRAWN BY: JKO CHECKED BY: JGL DATE: 06/29/06 PROJECT No.: 05-315 S 00°14'56" E S 89'5318" PRESSURED IZ DRAINFIELD o � ‘,* 4444 17' O 0 0 1' 102.97' D'OPOSH9 BA\ 60' X 40' BA 15' 44' A EN 2-CAR tSb+ N) V) 22' CO NI 0 N ON'S ADDITION N LOT 4 18,123 sq.ft. 17303 E. BROADWAY 42' 0 O Z N 89`59'33" E LEGEND 0 10 20 40 60 MARKHA HOM, NC.M = LOT BOUNDARY — — — — = 8' BORDER EASEMENT 10' UTILITY EASEMENT SCALE IN FEET P.0 BOX 610 IBERTY LAKE, WA 99019 (509) 927-1437