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Home My WebLink AboutT12N R3W SEC 22 LT 26 W110' OF S396'Rick Mystrom, Mayor Mtmicipality of Anchorage Department of Health and Human Services 825 "L" Street P.O. Box 196650 Anchorage, Alaska 99519-6650 http://www.ci.anchorage.ak.us July 8, 1999 John Parrish & Suzanne Cole 5125 E ll2TH AVENUE Anchorage, AK 995161615 Subject: T12N R3W SEC 22 LT 26 W110' OF S396' Permit # SW980155 PID # 015-521-39 The subject permit, issued 6/5/98 by this office for a single family well and/or on-site wastewater system, has expired as of 6/5/99. If you have drilled the well, a well log must be sent to this office for documentation of the installation and to close the permit. If a licensed Professional Engineer has inspected the installation of the on-site wastewater system, the original as-built inspection report must be sent to this office for review, approval and documentation. All inspection reports must be submitted within 30 days of construction completion. A new permit must be obtained from this office for a well and/or on-site wastewater system NOT installed by the expiration date. When applying for a new permit, the fees are: $320.00 for an on-site wastewater permit and $120.00 for a well permit. If you have any questions, please call this office at 343-4744. Program Manager On-site Services enc: Copy of Permit MUNICIPALITY OF ANCHORAGE DEPARTMENT OF HEALTH AND HUMAN SERVICES P.O. BOX 196650, 825 "L" STREET, ROOM 502 ANCHORAGE, AI~SKA 99519-6650 PAGE 1 OF ON-SITE WELL SYSTEM PERMIT PERMIT NUMBER:SW980155 DESIGN ENGINEER: OWNER NAME:PARRISH JOHN G & SUZANNE COLE OWNER ADDRESS:5125 E ll2TH AV~ D. NCHORAGE, AK DATE ISSUED: 6/05/98 EXPIRATION DATE: 6/05/99 PARCEL ID:01552139 LEGDd4 DESCRIPTION: T12N R3W SEC 22 LT 26 Wll0' OF S396' LOT SIZE: 43560 (SQ. FT.) N73MBER OF BEDROOMS: 3 THIS PERMIT: 3 THIS PERMIT IS FOR THE CONSTRUCTION OF: WELL SYSTEM ALL CONSTRUCTION MUST BE IN ACCORDANCE WITH: 1. THE ATTACHED APPROVED DESIGN. 2. ALL REQUIREMENTS SPECIFIED IN ANCHORAGE MUNICIPAL CODE CF~lPTERS 15.55 ~ 15.65 D. ND THE STATE OF ALASKA WASTEWATER DISPOSAL REGULATIONS (18D21C72) ~ DRINKING WATER REGULATIONS (18~C80). 3. THE ENGINEER MUST NOTIFY DHHS AT LEAST 2 HOURS PRIOR TO EACH INSPECTION. PROVIDE NOTIFICATION BY CALLING 343-4744 ( 24 HOURS ) (NOT REQUIRED FOR WELL ONLY PERMIT) 4. FROM OCTOBER 15 TO APRIL 15 A SUBSURFACE SOIL ABSORPTION SYSTEMUNDER CONSTRUCTION DURING FREEZING WEATHER MUST BE EITHER: A. OPENED ]5.ND CLOSED ON THE SAME DAY B. COVERED, SEALED ~XVD HEATED TO PREVENT FREEZING 5. THE FOLLOWING SPECIAL PROVISIONS. 1 SPECIAL PROVISIONS ISSUED BY: LOT 25 EAST 112th AVENUE REPLACEMENT TRENCH SITE , CONSTRUCT 54 LONG -SE I,L,, ASS. TRENCH w. SEWER DIVERSION VALVE NEW1000 GALLON SEPTIC TANK TEST HOLE #1 ~TEST HOLE #2 ¢ ¢ I~oUSE TEST HOLE MONITOR TUBE (FOR FUTURE SEPTIC SYSTEM EAST PORTION LOT 26 (PRESENTLY UNDEVELOPED EXISTING SEEPAGE PIT (TO BE ABANDONED) EXISTING SEPTIC TANK (TO BE ABAND'ONED) \ EXISTING TRAILER (TO BE REMOVED)' WELL //1111/ / / ,/ SEPTIO~~] SEPTIC SYST. SYSTF /W'110', S 396',;LOT-26, SECTION 22 T12N, R3W, S,M, WELL AND SEPTIC SYSTEM SITE PLAN FLATTOP TECHNICAL S~RVICES 1 INCH = 50 FEET 14530 ECHO STREET DRAWN BY TFM ANCHORAGE, ALAS~F.A 99516 APRIL, 1994 NOTE: THIS IS NOT A SURVEYED PLAT. ALL LOCATIONS SHOWN ARE APPROXIMATE. Municipality of Anchorage Page DEPARTMENT OF HEALTH AND HUMAN SERVICES ENVIRONMENTAL SERVICES DIVISION P.O. Box 196650 · Anchorage, Alaska 99519-6650 · Telephone: 343-4744 On-Site Wastewater Disposal System and/or Well Inspection Report Permit Number: ~tl)~OlO~ PID Number: Of,., Name: ~-o~ a ?~rr-f.~ ~, Wastewater System: ~New [] Upgrade Address: Phone: 3~/(-/7~7 tN°'°tu~dr°°ms: [~ Deep Trench E]ShaliowTrenc~ E]Bed E]Mound E]Other Total D~th from original grade: LEGAL DESCRIPTION so,,.g.~: O. g ~PO/Sq:.pt. Lot: Block: Subdivision; Depth lo pipe bottom from original grade: GraYel deph beneath pipe Township: ~ Range: I Section: Fill added above original grade: , Gravel length: WELL: E~r D New ~Upgrade Gravelwidth: j .', Classification (Private, A,B,O): Total D~pth; Cased TO: Total absorption area: Pipe material: Driller: Date Drilled: StalicWater Level: installer; , Yield:GPM ~ Pump Set at: Ft. I Casing Height Above Ground:Ft. TANK SEPARATION DISTANCES S Septic U Holding ~ S.T,E,P. Material: w.=~ I o3 ' I 8 3' - - >z¢' ~ ~ ¢/ Number of C~,partment,: Surface Water >t~' >WO' -- -- - LIFT STATION Lot Size in gallons: J Manufacturer: Foundation lO ~ -- _ _ "Pump °n"leve' ab ~"Pump °'""evel ab I High w~ter a'am"ab Curtain -- =ump Make & Model ~ Electrical Inspections performed I Remarks: ~em /nx~lle~ p~c ~ BENCH MARK Inspecticns performed by: ¢/~,~ ~¢c4 %~6 Dates: 1st PJ'~)*~ ¢~%¢4,9~>~¢~ Department of Healt~an¢ H~man Services approval ~,. ~,% % ~,~o~o,~,~. ~oo,~..¢ ~ ¢. Reviewed and approved by: Date: ~ - 77 ~ ~'~. '*...-' PERMIT NO: SW940102 PID NO:01552139 SWING TIES FROM: COR. "X" COR. "Y" TO: S.T.C.O. "A" 12 33 S.T.C.O. "B" 17.5 37 TRENCH C.O. "E" 92 102 TRENCH M.T. "F" 117 128 TRENCH C.O. "G" 147 159 ~ PAGE 2 OF 2 F ~,, WITH 7' GRAVEL~ EW 1000 ) GALLON ~ t _ SEPTIC ~'~ A .... ~ TANK j ~- ~ ' ' ~ ~. // / TB EAST 112th AVENUE Y NEW BDRM HOUSE RI( NOV MunicipaliB Dep~Health & ilVED 6 1994 of Anchorage Human Services WELL / / PLAN VIEW SCALE: 1' = 50' T.H. #1 M.T. BOTTOM DRY @ 71.5' INV. 88,6'~ @ 78.5' PROFILE VIEW VERT. SCALE: 1" = 10' 1000 GALLON I~, SEPTIC TANKI~-INV' 88.8' W 110', S396', LOT 26, SEC. 22, T12N, R3W, S.M. SEPTIC SYSTEM INSTALLATION AS-BUILT INSPECTION REPORT FLATTOP TECHNICAL SERVICES 14530 ECHO STREET ANCHORAGE, ALASKA 99516 SCALE: AS-SHOWN DRAWN BY TFM OCTOBER, 1994 PAGE 1 OF 1 [~gNICIPALITY OF ANCHOP~AGE DEPARTMENT OF HEALTH AND HUMAN SERVICES P.O. BOX 196650, 825 "L" STREET, ROOM 502 ANCHOP~AGE, ALASKA 99519-6650 ON-SITE WASTEWATER DISPOSAL SYSTEM (UPGRADE) PERMIT PERMIT NUMBER:SW940102 DESIGN ENGINEER:FLATTOP TECHNICAL SERVICES OWNER NAME:PARRISH JOHN GILMER OWNER ADDRESS:5125 E ll2TH AV ANCHOP~AGE, AK 99516 DATE ISSUED: 4/29/94 EXPIRATION DATE: 4/29/95 PARCEL ID:01552139 LEGAL DESCRIPTION: T12N R3W SEC 22 LT 26 Wll0' 0 F S396' LOT SIZE: 43560 (SQ. FT.) NUMBER OF BEDROOMS: 3 THIS PERMIT: 3 THIS PERMIT IS FOR THE CONTRUCTION OF: DISPOSAL FIELD /SEPTIC TANK SYSTEM ALL CONSTRUCTION MUST BE IN ACCORDANCE WITH: 1. THE ATTACHED APPROVED DESIGN. 2. ALL REQUIREMENTS SPECIFIED IN ANCHORAGE MUNICIPAL CODE CHAPTERS 15.55 AND 15.65 AND THE STATE OF ALASKA WASTEWATER DISPOSAL REGULATIONS (18AAC72) AND DRINKING WATER REGULATIONS (iSAAC80). 3. THE ENGINEER MUST NOTIFY DHHS AT LEAST 2 HOURS PRIOR TO EACH INSPECTION. PROVIDE NOTIFICATION BY CALLING 343-4744 OR 343-4681 AFTER BUSINESS HOURS 4. FROM OCTOBER 15 TO APRIL 15 A SUBSURFACE SOIL ABSORPTION SYSTEM UNDER CONSTRUCTION DURING FREEZING WEATHER MUST BE EITHER: A. OPENED AND CLOSED ON THE SAME DAY B. COVERED, SEALED AND HEATED TO PREVENT FREEZING 5. THE FOLLOWING SPECIAL PROVISIONS. SPECIAL PROVISIONS: HECEIVEDBY: / DATE ., .HNICAL,SER .; THEODORE F. MOORE, P.E. 14530 ECHO ST. PH: (90?) 345-1355 April 26, 1994 ANCHORAGE, ALASKA 99516 M.O.A. DHHS P.O. Box 19-6650 Anchorage, AK 99519 Dear Sirs: The purpose of this letter is to provide the required design narrative in support of our application for a permit to consm~ct wastewater disposal facilities on the West 110' of the South 396' of Lot 26, Section 22, T12N, R3W, S.M., located at 5125 East 112th Avenue. Soils logs, perc test results, a site plan, design drawings and specifications are enclosed for your review. The proposed system will be constructed in the vicinity of test hole # 1. As can be seen from the soil log, the native material between 4.5' and 18.5' is a somewhat silty sand with a measured perc rate of 18 minutes per inch. Using the soil application rate of 0.6 gpd/sq, ft. specified in the wastewater ordinance for soils with measured percolation rates between 16 and 30 minutes per inch, this proposed 3 bedroom residence requires a total absorption area of (3 x 150)/0.6 = 750 square feet. The proposed 54 foot long trench design with 7 feet of sewer gravel beneath the horizontal distribution pipe has a total absorption area of 756 square feet. A similarly configured replacement ~ench is shown on the site plan on the east side of Test Hole #1. The property owner wishes to be able to install the replacement trench when funds pexrnit, so that he can alternate use between the two trenches. Accordingly, this design calls for the installation of a diversion valve at the location shown on the site plan, which can be tied into at a later date. Since the design for the replacement trench is identical to the original trench, a future permit should be able to be issued for installation of the replacement trench without additional engineering being required. The topography of the lot slopes gently towards the north at approximately 2%. The proposed project will have no impact on present or futare water supply and wastewater disposal systems serving adjacent properties, nor will it have any impact on reserved space/surface and subsurface, or on drainage. Please give me a call at 345-1355 if you have any questions on this submittal. Sincerely, Ted Moore, P.E. TRENCH SITE , -- CONSTRUCT 54 LONG N----SOIL ARS. TRENCH _ ~2% ~ ' / / DIV~BSIO~ ~'~ /fiST HOk[ MOSIIOB TUBE ~ VALVE ~ ~TEST (FOR FUTURE SEPTIC SYSTEM) ~ HOLE / EAST PORTION LOT 26 / NEW 1000 TEST (PRESENTLY UNDEVELOPED / GALLON HOLE ~2 / SEPTIC ~ / TANK / EXISTING SEEPAGE PIT / BE ABANDONED) / PROPOSED- -- -- / 3 BDRM. / / HOUSE / EXISTING SEPTIC TANK / , (TO BE ABANDONED) / / 2% / / LOT 25 / ~ ~EXIST.. EXISTING TRAILER EAST 112th AVENUE~ ~,~ ~-- ~ ~ ~ ~ WELL AND SEPTIC SYSTEM C~ SITE PLAN SEPTI SEPTIC FLA~OP ~CHNICAL SERVICES 1 INCH = 50 FEET SYST. SYST. ~ ~4530 ~C~O STR~T DRAWN BY TFM ANC~O~GE, ~AS~ 995~6 APRIL, 1994 NOTE: THIS IS NOT A SURVEYED P~T, ALL LOCATIONS SHOWN ARE APPROXIMATE. 54' LONG SOIL ABS. TRENCH ~ ~"A~" "BULL RUN ~o- .... ~'~'x ~ °'°'~._~ ~,/ FROM SEPTIC TANK PLAN VIEW SCALE: 1" = 10'-0" 3 MOUND BACKFILL 1' ABOVE ORIGINAL GROUND FABRIC ASTM F-810 PERF· DIST PiPE 1/2" - 2 1/2" SEWER GRAVEL SECTION "A - A" SCALE: 1" = 5' - 0" W110', S396', LOT 26, SEC. 22, T12N, R3W, SM PROPOSED SEPTIC SYSTEM PLAN AND CROSS-SECTION FLATTOP TECHNICAL SERVICES 14530 ECHO STREET ANCHORAGE, A~, 99516 SCALE: AS SHOWN DRAWN BY: TFM APRIL, 1994 Flattop Technical Services 14530 Echo Street, Anchorage, AK99516 Phone (907) 345-1355 West 110', South 396', Lot 26, Section 22, T12N, R3W, S.M. 5125 East ll2th Avenue Wastewater disposal system installation Specifications 1.0 General: 1.1 The scope of the project consists of abandonment of an existing septic tank and seepage pit and installation of a new 1000 gallon septic tank followed by a 54' long soil absorption trench with a total depth of 12 feet and a total sewer gravel thickness of 7.5 feet. 1.2 Construction shall be as depicted on the approved site plan and design drawings. Minor deviations from these drawings may be allowed or requh'ed by the engineer conducting the inspections. All construction procedm'es and material specifications shall conform with Municipal and State requirements. All separation distances shall be in conformance with Municipal requh'ements, unless specifically waived. 1.3 The contractor shall be responsible to obtain any necessm'y utility locates, and to work around any buried utilities. 1.4 The contractor shall provide adequate cover material and rough grading over all system components to ensm'e that proper ddrainage is achieved after settlement and that there are no residual depressions. Insofar as possible the contractor shall minimize damage to trees and existing lawn areas. 1.5 Unless specifically agreed otherwise, the homeowner shall be responsible for finish grading after the soil is compacted, as well as placement of topsoil and reseeding all areas distm'bed by the construction. 2.0 Septic Tank: 2.1 The existing septic tank and seepage pit must be properly abandoned by thoroughly pumping, removing the tops and backfilling with soil. 2.2 The new 1000 gallon, 2 compartment septic tank shall be Municipally approved and shall be set level on undisturbed soil. Each compartment shall be equipped with a watertight manhole cover and a 4" cleanout. If the tank is buried less than 4 feet, it shall be insulated with 2 inches of approved burial type, rigid insulation. 2.3 All pipe connections to the tank shall be equipped with waterproof mechanical couplings. The waste line from the residence to the septic tank shall have a minimum slope of 1/4'" per foot, and the waste line between the tank and the soil absorption system shall have a minimum slope of 1/8" per foot. A cleanout shall be installed within 5 feet of the building foundation, and a double cleanout shall be installed within 5 feet downstream of the septic tank. 2.4 A "Bull Run" diversion valve shall be installed between the septic tank and the soil absorption trench with the extra leg stubbed out and capped to allow futura connection of an additional trench as shown on the site plan. 3.0 Soil absorption system: 3.1 The soil absorption system shall be consU'ucted by excavating a trench to a total depth of 12 feet below original ground level in the vicinity of test hole 4/1. 3.2 The bottom of the excavation shall be level. Any compacted or smem'ed surfaces shall be raked to allow proper infiltration. 3.3 A total of 7.5 feet of approved sewer gravel shall be placed in the bottom of the excavation with the perforated disu'ibution pipes laid level such that the pipe inverts are no less than 7.0 feet above the bottom of the sewer gravel. Sewer gravel shall be 0.5" - 2.5" screened gravel, with less than 3% passing the 4/200 sieve. 3.4 Monitor tubes and cleanout pipes shall be of 4" diameter and installed in the locations shown on the design drawings. The portion of the monitor tube extending tkrough the sewer gravel shall be perforated. 3.5 Approved filter fabric shall be placed over tlie entire top sm'face of the sewer gravel. A minimum of 2 feet of soil cover is to be placed over the filter fabric. If tlie soil cover thickness is less than 3 feet, two inches of rigid, burial type insulation is to be placed over the entire top surface of the gravel, in addition to the filter fabric. 3.6 The top surface of the cover material shall be raised a minimum of 12 inches higher than the sun'ounding terrain to allow for subsequent settlement, and shall be graded to smooth contours. Fill slopes shall be no steeper than 3:1. 3.7 Unless specifically agreed otherwise the homeowner shall be responsible for an'anging to have the site finish graded after the backfill material has stabilized, and for placement of adequate topsoil and seed to promote rapid revegetation of all areas disturbed by the construction. 4.0 Inspections: 4.1 A total of 4 engineering inspections will be required during the course of the project: (1) initial stakeout with the contractor to establish the location of the system and to discuss the plans, specifications and construction procedures, (2) after the native material has been excavated to expose the infiltrative surface to ensure that it is level and at the right elevation, and conforms with the soil test information, (3)after the sewer gravel is in place and the distribution pipes have been laid and connected up to the septic tank, but prior to placement of insulation or filter fabric, and (4) after rough backfill and grading is complete. The septic tank requh'es one inspection after it is set level and the piping connected, but prior to backfill. This inspection may be incorporated witli any of the above inspections. 4.2 The installer shall coordinate the timing of the inspections with the engineer sufficiently far in advance to ensure the availability of the engineer. ITEST HOLE FLATTOP TECHNICAL SERVICES 14530 ECHO ST. ANCHORAGE, ALASKA 99516 SOILS LOG -- PERCOLATION TEST LEGAL DESCRIPTION: Wll0', S396', LOT 26, SEC 22, T12N R3W, S.M. DATE PERFORMED: PERFORMED FOR: APRIL 4, 1994 JOHN PARRISH DEPTH (feet) Pt GP/GM Brown silty sandy gravel Variable, loose, dry SP/SM Somewhat silty sand Gray, fine Lenses of SP Gradually becomes siltier with depth SLOPE Depth to Groundwater Date No groundwater seen 4[4/94 Monitor robe dry ., 4/13/94 TEST HOLE #1 % TESl HOLE #2 20- COMMENTS; Clock Net Time Percometer Net Drop Date Reading Time (minutes) Reading (inches) 4/4/9z 12" presoak 10:18 27 1/2 10:51 23 1/2 Add water 10:52 27 1/2 11:23 24 1/2 Add water 11:51 23 9/16 #1 12:11 20 22 1/2 i 1/16 Add water 12:11:30 23 9/16 #2 12:31:30 20 22 7/16 1 1/8 Add water 12:32 23 5/8 #3 12:52 20 22 1/2 1 1/8 PERCOLATION RATE 18 (minutes/inch) PERC HOLE DIAMETER 6" TEST RUN BETWEEN 8.25 FTAND 8.75 FT Material in perc test hole appeared to be slightly siltier than average for this stratum. PERFORMED BY FLATTOP TECHNICAL SERVICES. I ~',,..,~ ~/.~,'~,-v~.. CERTIFY THAT THIS TEST WAS PERFORMED IN ACCORDANCE WITH ALL STATE AND MUNICIPAL GUIDELINES IN EFFECT ON THIS DATE. DATE: TEST HOLE# LEGAL DESCRIPTION: DATE PERFORMED: PERFORMED FOR; DEPTH (feet) COMMENTS: FLAI-rOP TECHNICAL SERVICES 14530 ECHO ST. ANCHORAGE, ALASKA 99516 SOILS LOG -- PERCOLATION TEST W110', S396', LOT 26, SEC 22, T12N R3W, S.M. APRIL 4, 1994 JOHN PARR~SH Pt SM Reddish sandy loam GP/GM Brown silty sandy gravel Similar to Test Hole #1 SP/SM Somewhat silty sand Similar to Test Hole ;gl SLOPE SITE PLAN TEST 58 T HOlE #2 SM Gray silty sand Somewhat siltier than Test Hole #1 (pockets of ML) Depth to Groundwater Date No ~roundwater seen . 4/4/94 Monitor tube dry I 4/13/94 SP/SM Slightly silty Fine sand, loose Clock Net Time Percometer Net Drop Date Reading Time (minutes) Reading (inches) 4/4 12" Presoak 12:56 27 1/2 2:22 22 3/4 Add water 2:23 23 5/8 #1 2:43 20 23 0/8 5/8 Add water 2:43:30 23 11/16 #2 3:03:30 20 23 1/16 5/8 Add water 3:04 23 3/4 #3 3:24 20 23 1/16 9/16 PERCOLATION RATE 36 (minutes/inch) PERC HOLE DIAMETER 6" TEST RUN BETWEEN 8.5 FTAND 9.0 FT PERFORMED BY FLATTOP TECHNICAL SERVICES. I_~.~ ~ CERTIFY THAT THIS TEST WAS PERFORMED IN ACCORDANCE WITH ALL STATE AND MUNICIPAL GUIDELINES IN EFFECT ON THIS DATE. DATE: