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Home My WebLink AboutTIMBERLUX #1 BLK F LT 10 OL -' Municipality of Anchorage Page I of 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: -'~"") (~ C~ O0 -~' PID Number: O j ~-- ~ / - ~ ~ "~me:R~v ~1~ ~~¢l WastewaterSystem= DNew ~Upgrade Addres':~0 bOX I11~{ ~r~n~, ~q~ i~ ABSORPTION FIELD Total Depth from original grade: LEGAL DESCRIPTION so, Rating: O, ~ GPD/Sq. Ft. fi-O' Subdiv~ion: Depth to pipe bottom from o~a~e: Gravel depth beneath pipe Township: ~ Range: ~ Sectfon: Fill added above original grade:~¢O % Ft. Gravel ~ength:~o~ ~=/~ ~ J Ft.' WELL: ~ New ~ Upgrad(~ Grave, w~dth: ~0~Ft. Numbe~,.ines: IDistan~b,~een,inF%:. Clarification (Private, A,B,C): ~ Total Depth: ~ ~sed To: Total absorption area: ' ' · ¢( ~ ~t. tatl WaterLe~tl' r ~ SQ. Ft. ~'~la~o~/~ I ~. i ~.~ TANK / SEPARATION DISTANCES ~s~.t~c u Holding U S.T.~.P. TO Septic Absorption Li. Holding Pub]ic/Pdvst~ Manufacturer; ~.~ Fro~ Tank Field.. Statio, Tank Sewer Unes ~ ~ We,~' tO~+' /0O~' -- -- ~5~ Material: ~+~ I NumberofCompa~ments: ~ S.~ac~ LIFT STATION Remarks: [~,~ r,~o ~-~c,~ ~ BENCH MARK Loca"- n and nescription: Inspections pedormed by:17~,4 ,~c,e ,,,,r L,., ':=d ":. ~tes: l st ~,~~ Eagle River, AlasEa 9¢57Z 2nd ~/~/¢¢¢/ ~ ~,~' ,O.E.~ C. COW*, Department of Heath an~Huma~ Se~ices approva~ ~, ~,.'%.. ...... Reviewed and approved by: ~'; r~ Date: d*-/¢-~ 72-013 {Rev. 9/91) MOA 25 PERMIT NO SW990056 PAGE 2 OF 5 Hunicipotit;v o¢ Anchoc'o, oe DE?ARTHENT OF HEALTH AND HUMAN SERVICES ENVIRONHENTAL SERVICES DIVISION P.B. Box ].'96650 oAnchor'o. De, Al(lsko. 995].9-6650~,Te(ephone~ 343-4744 ON-S~TE WASTEWATER D~SPOSAL SYSTEH AND/OR WELL INSPECTION REPORT LOT 10, BLOCK F, TIMBERLUX S/D #1 P.I.D. NO. 018--271--14 / FLO~/ SPLITTER (FS) CB3 HT3 HT1 CU1 MTB MT4 COB NEW 1500 GAL, SEPTIC TANK DIVERTER VALVE CD ST1 ST2 DBL1 DBL2 (DV) HT EXISTING TRENCH 100' ~/ELL RADIUS PERMIT NO, $W990056 PAGE -~ OF 3 MunlclDcdl"cv of' Anchorsoe DEPARTMENT OF HEALTH AND HUN'AN SERVICES ENVIRONMENTAL SERVICES DIVISION P,B, Box 196650 /Anchorage, A~lcska 99519-665~/Teen, hone:, 343-4744 ON-SITE WASTEWATER DISPOSAL ~YSTEH AND/OR WELL ~NSPECTION REPORT LEGAL LOT 10, BLOCK F, TIMBERLUX #1 S/D P.LD. NO. 018--271--14 ST1 ST2 /-FINAL GRADE 97.6' ? NEW 1500 GAL SEPTIC TANK /INSULATION ~---991.7' C03 C04 MT3 MT4 C03 = 9.4.7' n n AL GRADE III '"'N-H__lc03 = 88.5' TRENCH 1 [][SR~ IC04 = 88.4' 85.1'~IB5.1' FCO ST1 ST2 DBL1 COl / MT1/ co2 I MT2 I co~ I MT,5 I co4 / / A B C 32.0' 27.5' 33.5' 28.5' 42.5' 36.5' 45.0' 38.5' 45.5' 39.0' 134.0' 81.5' 110.5' 111.5' 68.0' 115.0': 70.5' 174.5 12,5.0' 175.5 122.0' 114.0 80.5' 115.5 81.5' 177.5 130.5' 175.5 128.0' 168.0' 190.0' 91,5' 123.5' 134.5 82.5' 111.5' NO WATER FOUND 78.7' B.O.H. TRENCH 84.? CO1 MT1 C02 MT2 CO1 = 94.6' H H:'H~IC02: 94.1' AL GRADE I II "-H4_Jcol = 88.~' .~.~~ Ico~.,,... ...~/ 88.1' MUNICIPALITY OF ANCHORAGE Department of Health and Human Services On-Site Services Program 825 L Street, Room 502 P.O. Box 196650, Anchorage, AK 99519-6650 ¢07) 343-4744 ON-SITE WASTEWATER DISPOSAL SYSTEM PERMIT Upgrade Date Issued: Apr 08, 1999 Expiration Date: Apr 07, 2000 Permit Number: SW990056 Legal Description: TIMBERLUX#1 BLK F LT 10 Design Engineer: 0003 S & S Engineering Owner Name: Roy & Weida Spannagel Owner Address: PO Box 111991 Anchorage, AK 99511-1991 Parcel ID: 018-271-14 Site Address: 015301 CURVELL DR Lot Size: 70567 SQ. FT. Total Bedrooms: 5 Permit Bedrooms: 5 This permit is for the construction of: [] Disposal Field [] SepticTank [] Holding Tank [] Privy [] Private Well [] Water Storage 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 ( 18AAC80 ). 3. The engineer must notify DHHS at least 2 hours prior to each inspection. Provide notification by calling (907) 343-4744 ( 24 hours ). ( Not required for a Water Supply Permit only ). 4. From October 15 to April 15, a subsurface soil absorption system under construction during freezing weather must be either: A. Open and closed on the same day. B. Covered, sealed, and heated to prevent freezing. Received By: Issued BY: Date; Date: March 24, 1999 l:CEi'v i:u MAR 30 1999 MUNICIPALITY OF ANCHOP-A.I~J~)BERT O. COWAN, P.E. ENVIRONMENTAL SERVICES DIVISION CIVIL ENGINEERS (907) 694-2979 FAX (907) 694-1211 ENGINEERING STUDIES AND REPORTS WELL INSPECTION & ELOWTEST ROADDESIGN SOILTEST PERCOLATION TEST MUNICIPALITY OF ANCHORAGE Department of Health and Human Services P.O. Box 196650 Anchorage, AK. 99519 REFERENCE: Lot 10, Block F, Timberlux #1 Subdivison Request you issue a permit to install a septic system to serve the five bedroom dwelling on the referenced property. One test hole was excavated and percolation test was Performed. The approximate location of the test hole is located on the attached site plan. At the time of excavation 3/11/99 water was not found. After 'seven days of ground water monitoring the monitoring tube was dry. We do not anticipate any adverse effects on neighboring wells, septic systems, reserve areas or drainage patterns by the installation of the proposed septic system. The construction of this system will not prevent any future development on any of the adjacent properties. If you require additional information, please contact us. Sincerely, Robert C. Cowan, P.E. RCC/jhm Enclosure 17034 NORTH EAGLE RIVER LOOP SUITE204 EAGLE RIVER, ALASKA99577 1".-- 100' "SCALE SITE / k / DESIGN / 1" = 40' ~CALE DESIGN DETAIL Municipality of Anchorage DEPARTMENT OF HEALTH & HUMAN SERVICES 825 "L' Street, Anchorage, Alaska 99502-0650 SOILS LOG -- PERCOLATION TEST PERFORMED FOR: /~0y 8 p/~J~//VA~'~ ~ DATEPERFORMEI LEGAL DESCRIPTION:jO T /0 /~.~{( )~ ~/-//O~'4'/"u)(fo~w~ship, Range, Section: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 COMMENTS WAS GROUND WATER ENCOUNTERED? IF YES, AT WHAT DEPTH? pO E Depth lo Water Alter D,~.¥ Monitoring? Bate: SLOPE SITE PLAN Gross Net Depth to Net Reading Date Time Time Water Drop ~.l/:z}~, o .- 6 ',/~', _ PERCOLATION RATE TEST RUN BETWEEN __ (minutes/inch) PERC HOLE DIAMETER __ FT AND ~ FT PERFORMED BY,' I ~/~ ~-~/~ CERTIFY THAT THiS TEST/WAS PERFORMED IN 17U~ ~agie ~lver Loop Road No. 2~ ~/~ ~/~ ~ ACCORDANCE ~~IPAL GUIDELINES IN EFFECT ON THIS DATE. DATE: /f ~ / 72-008 (Rev. 4/~) ROBERT C, COWAN, P,E, SEVER & WATER MAiN EXTENSIONS SEWER&WATER INSPECTION ENGINEERING STUDIES ANDREPORTS WELL INSPECTION &FLOWTEST ROAD DESIGN SOILTEST ON-SITE WASTEWATER DISPOSAL SYSTEM CONSTRUCTION PRACTICES and MATERIAL SPECIFICATIONS CIVIL ENGINEERS (907) 694-2979 FAX (907) 694-1211 rEFERENCE: Lot 10, Block F, Timberlux #1 Subdivision March 24, 1999 ;ENERAL: The scope of this project includes the installation of a 1500 gallon septic tank and leachfield trenches for the existing five bedroom house located on the referenced property. Construction shall be in accordance with the approved site plan and design drawings, Municipal permit with any special provisions or conditions, and all applicable State and Municipal Wastewater Disposal Regulations. The contractor shall be responsible for obtaining any necessary underground utility locates. Unless specifically agreed otherwise, the property owner shall be responsible for final grading areas subsequently depressed from soil settling. Contractors installing wastewater disposal systems must be certified by the Municipal Health Department for system installations. Owners installing their own systems must also receive prior approval from the Municipal Health Department. ~PTIC TANK INSTALLATION: A septic tank is to be constructed by a certified septic tank manufacturer. Construction shall include two 4" cleanouts for pumping access. The septic tank shall be sufficiently bedded to prevent settling or shifting of the tank. All standpipes on the septic tank shall extend a minimum of 12 inches above final grade. 17034 NORTH EAGLE RIVER LOOP * SUITE 204 ° EAGLE RIVER, ALASKA 99577 Page 2 Lot 10, Block F, Timberlux #1 S/D Mar 24, 1999 Septic tanks installed with less than 4 fi. of cover shall be insulated. A foundation cleanout shall be installed one to four feet from the building foundation. In the line between the tank and the leachfield there shall be two adjacent cleanouts (unless an effluent pumping system exists within the septic tank). These cleanouts shall be located on undisturbed soil not more than 10 ft. from the tank. The first cleanout, in line, shall be to clean toward the leachfield. The second cleanout shall be to clean toward the septic tank. Final grading over the septic tank shall be such that a positive slope exists away from the septic tank. ABSORPTION TRENCH/DRAINFIELD INSTALLATION: Excavate the proposed trench to the dimensions shown on the design. The bottom of the excavation shall be within 2 inches of level. If the sidewalls of the excavation become smeared, they must be raked or scratched (ruffed-up) before gravel (sewer rock) placement. Once the gravel is installed, the distribution pipe is to be installed level with the perforations faced downward. Gravel is then to be placed over the distribution pipe to provide a minimum of 2 inches of cover over the pipe. A silt barrier must be installed between the final gravel layer and the native soil backfill. Ensure the silt barrier covers the entire gravel surface before placing backfill. Monitor tubes shall be of four (4) inch diameter, installed approximately in the locations shown on the design, and extend a minimum of 12 inches above final grade. The portion of the monitoring tube extending through the gravel shall be perforated from the bottom of the trench to the invert of the distribution pipe. This is equivalent to the effective depth of the gravel as noted on the design. Backfill over the final gravel layer must not be less than twenty-four (24) inches. Insulation must be installed when the backfill depth is less than thirty-six (36) inches. The finish grade over the trench must be mounded to prevent the formation of a depression after settling. Page 3 Lot 10, Block F, Timberlux #1 S/D Mar 24, 1999 MINIMUM MATERIAL SPECIFICATIONS: Any septic tank proposed for installation must be constructed by a Municipal approved septic tank manufacturer. The following pipe materials are approved for use in septic system installations in the Municipality of Anchorage: T.vpe of Pipe Perforated Solid Cast Iron Yes Yes ASTM D3034 (PVC) Yes Yes ASTM F810 (HDPE) Yes No ASTM D2662 (ABS) Yes Yes Use of a type of pipe other than listed above must be approved by the inspecting engineer. Insulation shall be at least 2" thick extruded direct burial polystyrene (Dow Chemical Company Styrofoam HI or equal). Septic tank inlets and outlets shall be fitted with watertight couplings (Caulder, Femco, or equal). A permeable nontoxic silt barrier (Typar 3401, Mirafi 140N, or equal) must be installed between the final leachfield gravel layer and the native soil backfill. All leachfield gravel (sewer rock) shall be 0.5"-2.5" screened gravel with less than 3% passing the #200 sieve. When sand is being used as a filter material, its gradation specifications must conform to current M.O.A. or D.E.C. requirements, which ever requirement applies. INSPECTIONS: Typically there will be a minimum of three (3) inspections required during the installation of the wastewater disposal system. These inspections will occur as follows: Page 4 Lot 10, Block F, Timberlux #1 S/D Mar 24, 1999 The first inspection must be conducted after the excavation of ditches, pits, trenches, or beds and before the installation of any gravel. A septic tank may be set in place, but may not be backfilled before this inspection. The second inspection must be conducted after the placement of the silt barrier, gravel, distribution lines, standpipes, cleanouts, and insulation, but before the placement of any other backfill. 3. The final inspection is to occur upon £mal grading of the property. Often there will be more than these 3 inspections required. Especially with the installation of multiple trenches, sand filters, pressurized distribution systems, etc. Thus, the inspecting engineer is to be contacted at least 24 hours prior to the start of construction. If necessary, a pre-construction meeting will take place on-site. The inspecting engineer will not coordinate, direct or control in any way the contractors activities. The owner shall contract with the contractor to perform the work outlined in these specifications and plans and in accordance with the attached M.O.A. permit. There will be no contractual arrangement existing between the contractor and S & S Engineering. S & S Engineering shall be the owner's representative and will inspect the work as stated above to document the contractors activ/ties. Final acceptance of the contractors work rests with the owner and the M.O.A. S & S Engineering shall have no liability to the owner or to others for acts or omissions of the contractor or any other persons performing work on this project or the failure of the contractor to carry out the work in accordance with these construction documents. S & S Engineering's inspecting engineer will not be responsible for the construction means, methods, techniques, sequence, procedures or the safety precautions incident to this project. CONTRACTOR/INSTALLER t ¥; k,_, MUNICIPALITY OF ANCHORAGE ~ , DEPARTMENT OF HEALTH & ENVIRONMENTAL PROTECTION I * ENVIRONMENTAL ENGINEERING DIVISION 825 L Street- Anchorage, Alaska 99501 Telephone 264-4720 ON-SITE SEWAGE DISPOSAL SYSTEM AND/OR WELL INSPECTION REPORT PHONE I ~[] I~EW LEGAL DESCRIPTION LOCATION NO. OF BEDROOM~ ~ ~ Manufacturer Material No. of compartments ~ Liq. capacity in gallons IF HOME,DE: Inside length Width Liquid d~pth . ~ Well Dwelling PERMIT NO. O Z ~ Manufacturer Material Liquid capacity in gallons NO. of lines [ Length of each lin~ q O 6 0 inches O/ Total length of lines / Trench width Distance between lines ~ *°P°ftilet°fin'shgrade~*¢ '~O ~ inches'~ ~ ~ Material beneath tile Total effective abso ption area Length W,dth Depth PERMIT N~.' ~ ~ Type of crib. Crib diameter Crib depth Total effective absorption area ~ Well Building foundation Nearest lot line ~ DISTANCE TO: ~ Class Depth Briller Distance to lot fine PERMIT m Building foundation Sewer line Septic tank Absorption area{s) ~ DISTANCE TO: OTHER PIPE MATERIALS ~ ~ ~ ~ " SOl L TEST RATING INSTALLER APPROVED / DATE LEGAL '2-013 (Rev. 3/78) :Dep~rtm~nt ~ ur ~unum~u~ '~" 825 ~ Health and Environmenta.l, ,~rotection ~' Street, ~chorage, AK. ~9501 ~.~1~ Pe~it ~O~ ..A HANDWRITTEN PERMIT * * * ~ ~--~ W~ AEC/OR ON-SITE SEWER PERMIT Applicant: ..~:~r~Oc~ ~c~ Mailing Address: ~'~ /~.S~-~ Location: Phone Nu~er: [~c/~-/A~ / Legal Description: ~/0 ~/0~ ~ ~ ~/~,~ LOt Size: Type of Soil ~sorption System Is: Trench: __ Drainfield: __ Seepage Bed: ~ Holding Tank: Maximum N~ber of Bedrooms: ~ Soil Rating (sq. ft/br) ~ ~ /~ ~, T .... ~ ~o0 ~ he Required S~ze of the So~l ~sorpt~n System is:~ -~ ~ ~ Tne lengtn aimension is the length(in feet) of the trench or drainfield. The depth of a trench or pit is the distance between the surface of the ground and the bottom of the excavation(in feet). There is no set width for trenches. The gravel depth is the minim~ depth of gravel between the outfall pipe and the bottom of the excavation(in feet). · * REQUIRED SEPTIC(HOLDING) TANK SiZE = /~ GALLONS * * Permit applicant has the responsibility to info~ this department during the installation inspections of any wells adjacent to this property and the number of residences that the well will serve. · * * TWO(2) INSPECTIONS ARE REQUIRED * * * 5ackfilling of any system without final inspection and approval by this department will be subject to prosecution. Minimum distance between a well and any on-site sewage disposal system is 1~0 feet for a private well or 150 to 200 feet from a public well depending upon the type of public well. Minimum distance from a private well to a private sewer line is 25 feet and to a community sewer line is 75 feet. Well logs are required and must be returned to this department within 30 days of the well completion. Other requirements may apply. -Specifications and construction diagrams are available to insure proper installation. * * * PERMIT EXPIRES DECEMBER 31~ 1 9 ~ 3 * * * I certify that:' (1) I am familiar with the requirements for on-site sewers and wells set forth by the Municipality of Anchorage. (2) I will install (3) Signe~: SWP/024 (1/81) as I understand the residence ~e~,~led to Ap~licanj ' - / 'Date: the system in accordance with codes. that the on-site sewer system may require enlargement if include more that ~bedrooms. MUNICIPALITY OF ANCHORAGE DEPARTMENT OF HEALTH AND ENVIRONMENTAL PROTECTION 825 L, Street, Anchorage, Alaska 99501 264-4720 SOILS LOG - PERCOLATION TEST TEST SLOPE 7- 8 11 ENCOUNTERED? 12 IF YES, AT WHAT DEPTH? 13 14 15 16 17 18 19- 20- SITE PLAN Gross Net Depth to Net Reading Date Time Time Water Drop t~ ',~ 6 ' 5-6 72-008 (6/79) MUNICIPALITY OF ANCHORAGE DEPARTMENT OF HEALTH AND ENVIRONMENTAL PROTECTION 825 L. Street, Anchorage, Alaska 99501 264-4720 SOILS LOG -- PERCOLATION TEST [~/~SOI LS LOG ~PERCO LATION TEST PERPORMED FOR: C LEGAL DESCRIPTION: 1 2 3 4 § 6 7 8 9 10 11 13 14 15 16 17 18 19 20- COMMENTS SLOPE SITE PLAN WAS GROUND WATER ~.] (~ ~ ENCOUNTERED? ~ E IF YES, AT WHAT ,~ DEPTH? Gross Net Depth to Net Reading Date Time Time Water Drop PERCOLATION RATE (minutes/inch) TESTRUN BETWEEN (~,~ FTAND ~'~ '~ FT PERFORMED BY: 72-008 (6/79) MUNICIPALITY OF ANCHORAGE DEPARTMENT OF HEALTH AND ENVIRONMENTAL PROTECTION SOILS LOG -- PERCOLATION TEST E]~OI LS LOG [~"~PER CO LATION TEST SLOPE SITE PLAN 1 2 3 4- 5- 6- 7 8 9 0% 10 11 12 13 14- 15- 16- 17- 18- 19 2O WAS GROUND WATER I~..~'/ SL ENCOUNTERED? O P E IF YES, AT WHAT DEPTH? o% Gross Net Depth to Net Reading Date Time Time Water Drop PERCOLAT~ONRATE 2'~ ~'.~'L t~(minutes/inch) TEST RUN BETWEEN COMMENTS PEREORMEDB~ ~_~ ~0n¥ CERT,~,EDS¥: FT AND 'Z' ~ , FT - V '~A · DATE ~JNICIPALITY OF ANCHORAGE ~.jP DEPARTMENT OF HEALTH AND ENVIRONMENTAL PROTECTION 825 L. Street, Anchorage, Alaska ~9501 264-4720 SOILS LOG -- PERCOLATION TEST PERCOLATION TEST · EGAL DESCR,PTION=~/.O--~--O /O 12/O~ / F 1 6 7 8 9- 10 11 12 13 14 15 16- 17- 18 19 20- DATE PERFORMED: SLOPE SITE PLAN WAS GROUND WATER ENCOUNTERED? IF YES. AT WHAT DEPTH? Reading Date COMMENTS~_~~-~ PERFORMED BY:. 72-oo8 PERCOLATION RATE TEST RUN BETW EN s7~o~Y Net Depth to Net Time Water Drop Time ~.. 3,' ~ o o,~2 ~ minutes/inch) FT AND ~ FT i' ~.~,, MUNICIPALITY OF ANCHORAGE ~. ;, · ~ _ DEPARTMENT OF HEALTH & ENVIRONMENTAL PROTECTION ENVIRONMENTAL ENGINEERING DIVISION 825 L Street- Anchorage, Alaska 99501 Telephone 264-4720 ON-SITE SEWAGE DISPOSAL SYSTEM AND/OR WELL INSPECTION REPORT ~ UPGRADE LEGAL DESCRIPTION ~"~ ' Manufacturer~~ Mater~ No, of compartmen~ ~ ~ Liq, ca acity in gallons Inside length Width Liquid depth , ~ Well D Iii g PERMITNO, ~--~Q ~ ~ Manufacturer ~ ~ f Material Liquid capacity in gallons ~ DISTANCE TO: °~71~ Trench w~ Distance bet~s ~ 7 No, of lines/ Length Total I~ inches Length Width Depth PERMIT NO. ~ ~ Type of crib Crib diameter Crib depth Total effective absorption area ~ Well ~uildlng foundation Nearest lot line ~ DISTANCE TO: ~ Class Dept~ Driller Distance to lot llne PERMIT NO, ~ Building foundation Sewer line Septic tank Absorption area(s) ~ DISTANCE TO; OTHER ~ 0 ~' :~ PIPE MATERIALS SOl L TEST RATING IRev, 3/78) FE.L.i'I:[ [ N3 C, EF'FIF4:TFIENT - I.-I[.{F]I_TH R?,I[;, EN',,,'ZF:'.ONMEb,ITFIL 8;::]:5 -'~l.~: ':STREET., FIb4C:HORF:!GE., ~-..~ E!E L.. ~ .... F; I~-~ E::, ,~ IP-4t .-.--. :?.: (.78C~'?'~7' .':' If F L I _.l t_ O E: F:I T I A N I._EGFtL RFIE:E: Z T E:I:~:[~ E I<: [ ZI1E[ f.b ,.., LOT 'I_E~ E~L. OCI-(: F .......':; ...... S/[' L.OT S, IZIE T"r'F'E OF ::,- 1.l'L FIE:LSORBT]:ON : ~- TErl : If [:N..II MI:]X);MLII',I NLli'IEEI:~. (:iF:' E:EC, ROOf"!S = 5 THE f;:EL-E!U I REE:' :,.[ ~E OF THE SO ]: L FflE:SORPT ]: OF,t ...., r .. I Li'I 15';: FEET THE LEb4r3'I"H [)IblEN'.:SIC~N 1:5 THE LEb,IGTH ,.'.'Ihl FEE]":) OF THE 'T'RE:NCH OR [)RFK[NFIEL.C,. TFIE [:,EPTFI OF' F-I TRENCH OR F'IT 1% ']-HE DIE;TFII'-4C:E BE'T'P.IEEiq ]"PIE '_:.;URFFIE:E OF THE GROUND RND THE BOTTOH OF THE E:,.,;CFI',,,'RTtON KIN FEET). THERE IS NO SET 1.4IDTH FOR TRE:NC:I.4E:S. THE GRFI',,,'EL DEF'TH IE; THE MINIMUM [:,EF'TH ElF' GRFI',/EL. E~E'f't.qEEN THE OUTF:'RLL F:'IF'E FIND THE BOTTOM OF' THE E',?,',Cfl',,,'FIT]CON ,::Zi'4 FEET>. i F'ERMIT HFFL. I...Hi'4F- r-: .' I.-IRS THE RE'SF'Ob~S]:E:ILI. I'T"r' T:'~ ]:['11F'O[4:1"1 THl~'; C, EF>F!RTI',1Ei'.,FF E:,URZNG 1 i[,,...I PIC;E[.4 I- ~ ....... ,,: ,z-- - ,:: Tl'"l Till... [1:. FEb. bT FiI'.,I[:, "I-FIE : Ii'.z, THLLI-..KI ION .[f,l_,f LC FI ..il'l_ OF Ftl",l"r' 14ELL. 2.'; z "- _ - ,:' "; ..... ;:" , i",IUI"IBER OF RES, I[:,IENC':E:E:; THFIT THE 1.4EL. L 1.4:[L[ ..... E[..,E. E,-I_.I'...FILLZf,I~ OF Ri"4'T' _-',r.::,~Ei"l I.,4]:TI--IOLIT F'];i"419L .Tf4_FE.~.f.[_If~ I::II",tE:, RI::'Pf;;:O',/FIL. E,'r =,UE, J E ~. I TO DEF'FtRTMEb,IT 1.4ILL. BE '" -' ''" . r,IlNIi',IUM [>ISTFINC:E BETP.IEEN R !.,.IELL FIND FIN"r' EIN'--~;ITE SE!.qFIGE DI::SPOSF:IL S'¢S'I-EM · l.E~r_.-'~ FEE']- FOR R PRIVFITE P.IEL.L.~ OR :1_5C~ TO 2OIb FEET FROM Fl PUBLIC FIELL. C,E:PENE)INdi UPON THE 'T"¢PE OF PU[S'LIC HEI..! .... [,JELL. LOGS FIRE RE~L.:P.J :[ RED RI'.~D MLIST E:E RETURNEC, TO THE DEF'RRTi'"iENT I.,.I):THIF4 OF THE !.,.IELL COi',IF'L. ETION. OTHER F:'.EQUIREfdEi'.4TS MI::I'T' RF'F'L"r'. SPECIFICFIT:[ONS; FII",IC' C:ON:'STRLIC-F]:Ob,I [:, :( RGRF:ff'12; FIRE FIVRIL. FIE[L.E TO Ii",k-:;URE PROPER II",ISTRLLFI]"ION. ! CERTIF"r' THAT ±: I Ri',1 FRMILIFIR I-4ITH THE REQUIF,::Ei'dENTS FOR ON-.SITE SE:I.,.IERSi; RND P.IELL.S F:I:]; 5;IET FORTH E:"r' ]'HE MUNIC:IPRLtT"r' OF FINCHORRGE. :2: I I.,.IIL. L INSTFILL. THE S'¢S"I'EM :IN RC:C:ORDf::INCE I.,.II'T',L~ THE CODES. 3: I UN[)[ERSTRN[:, THRT THE ON--SI'bE SEI.,.IER E;'.PSTEM MFI'¥' I;?.EQUIF.':E EF4L. FIRGE[','IlilENT IF' 'FIDE i -, ._-,::kE_,i[.,EN~_.... .... I:~:EMCIDEI_EE:,~TO II'.,IL~:L.LIC, E r,IORE THFIb,I 5 MUNICIPALITY OF ANCHORAGE DEPARTMENT OF HEALTH AND ENVIRONMENTAL PROTECTION Pouch 6-950, Anchorage, Alaska 99502 ~ SOILS LOG - PERCOLATION TEST SOILS LOG PERCOLATION TEST SLOPE SITE 6- 7- 8- 9- 10- 11 13- 14- 15- 16- 17- 18- 19- 20- COMMENTS (F YES, AT WHAT DEPTH? Lr-- [ ' 8~ I ill ; Gross Net Depth to Net Reading Date Time Time Water Drop PERCOLATION R~T~F_~ ..... C~ ~ .... {-~nin~tes~/inch) ~. TEST RUN ~ETWEEN ~ FT AND ,~.~O FT "} PERFORMED BY: CERTIFIED BY: DATE: ~71~/7<~ 72-008 (7~76) November 9, 1983 ilobbie Robinson Cory willis, R.S. .... Review of Lot 10, Block F f£imberlux Subdivision I have reviewed the file on this property and here is a chronolo- gical listing of all activities associated with it. 7-10-78 ~,~r. Tobben Spurkland performed a soils perculation test on the property and prepared a soils log for Mr. Jim Davis. '3?his log was used to obtain an on-site sewer installation perr~it from this department. I have found that Mr. Spurkland performed the "perc" test using a 20 foot column of water, which would give an erroneous perculation rate for the soil. '£his "perc" would not be acceptable today because it creates a hydraulic head and we %.;ould have no idea if the soil accepted the water, or if it was [orced into the soil. Also, with the 3 layers shown we would not know at what depth the system should be installed. 8- 8-78 Mr. James Young submits the above mentioned soils log to our department and Mr. Hank Allers, a code enforcement officer issues a permit ~ased upon tile soils data. At this time departmental policy was that a soils test be in the lot; however, we were not requiring that the absorption area be ~ithin ].0 feet of the test hole. 'fhe inspector when he did the first inspection would verify if the soils were similar to the soils test, but our inspectors did not have au extensive soils recogni- tion b~ckground. Mr. Allers designed a trench system for 5 bedrooms which consisted of a total length of 77 feet, 12 ~eet deep with 7 feet o[ gravel backfill. 10-25-78 Love Lace Excavation started work on the installation and Mr. John Kennedy from this office went out ~or a first inspection. As far as ~[ can determine fron] the work sheet, they were not ready so the excavators rescheduied the inspection for the next day. Robbie Robinson ~,~ovember 9~ 1983 Pa ge 2 10-26-78 10-30-7U 9- 5-80 to 9-22-80 9- 7-83 to 9-13-83 9-26-83 10-26-83 ~,ir. Allers went out for the first inspection at which time he verified the total depth, length~ tank set up and delpth of excavation to the tank out,all. At this time he also Should of verified if the soils were not as represented on the log. All was OKed and the excavators called for a second iuspection with gravel and pipe in pla ce. Mr. Kennedy returued for the second and verified that it was ready for ~ckfill. It is riot noted if visqueen, tar gaper or other cover was present to cover the gravel before the dirt was tw~ckfilled. Mr. Young requested approval of the sewer and water facilities. Mr. Robert Pratt with this office checked the property and after receiving the well log and veri~yiug that the well was sealed tightly, approved the property for 5 bedrooms. I do not know if the house was occupied for the previous 2 years as this was our only request for approval. DeArmoun Excavation was doing some work regarding a possible flooded system. I can ~ind no file inforn~ation aboat this; however, they did contact Dr. Leroy Reid, Jr., of Alaska Environmental Control Services who went on-site, did some investigation arid ~de some recommen- dations (his letter to Mr. Moser regarding this is attached). Basically, ne felt the system %,;as under- designed, due to hm%d perculation test (it doesn't appear too accurate) and then our inspectors allowing the system to be installed in soils worse than the soils log represented. He performed a new "perc" test in a dif- ferent area. Mr. Moser obtained a sewer upgrade permit using the new soils infor~tion and requested that an engineering fir do the on-site inspection. You received new soils in[or~tion from A.E.C.S. and then redesigned the permit specifications. We are still awaiting the engineer's final as-builts. Robbie Robinson November 9, 1983 Pa ge 3 ?he conclusions that cnn be drawn from this is that the soils tester's perc method was faulty and we issued the permit on that infornmtion, which now appears to be under-designed. Mr. Allers was the inspector who did the first inspection and there is no record of him or the excavator challenging the soils of the trench, so I have to assume he felt the soils were representative of the soils log. liowever, AoE.C.S., Dr. Reid, checked soils in one portion of the trench and found soils there to be "visually" greater than 60 minutes per inch. 'k'he installation location zs about 90 ~eet [rom the test hole~ but this depart~,~ent did not have a policy at that time to have the trench installed in the area of the test l~ole, lust ti~at the soils be similar to what the design ¥~as for the permit° *i'he per- mit should not have been issued using the submitted 7-10-78 soils log. The on-site sewer system is not designed to J~st forever, and there is some research as to the life expectancy o[ an on-site system. The system worked for 3 or 5 years occul~ancy with no records of overflow or failure problems, so there ~t%~y only be a pro-rated liability since the systems are not guaranteed to last forever. Attachments Ei ; ROnlll TAL CONTROL ~n~in¢¢¢in~ 6~ironmenloI Stuclies September 13, 1983 Cloyd Moser 200 W 34th Avenue, Suite 402 Anchorage, Alaska 99503 Dear Mr. Moser: On September 7, 1983 I visited your property located on Lot t0 Block F Timberlux Subdivision. The initial contact for coming to your house was a call from DeArmoun Excavating on the 6th of September stating that they had a sewer system that appeared to be flooded out. I agreed to visit the site on the following morning at 8:30 a.m. Upon arriving at the site I found a hole dug that exposed the septic tank and a portion of the drainfield. Water had covered the pipe coming out of the septic tank indicating to me that the system was probably full. However, the excavator was not on site. On contacting him, he stated that the septic tank pumper would be on the site later in the day and pump the system .dry so we could see better, At 11:15 a.m. on the 8th I meet the excavator at your house. At that time you turned over to me the soils logs and the inspection for the on-site system report. At a location approximately 2/3 of the distance between the septic tank and standpipe I had the excavator set up the backhoe and start digging into the ground with the idea that as we dug deeper we would approach the sewer system. We kept digging until such time that the backhoe had hit disturbed soil and we estimated that it was within one foot of the leach rock. At no time during the excavating did we see any evidence of water percolating through the soils out into the area we were digging. The soils that we were digging were a grey tight silty material and it was very difficult to dig. Finally at 0.5 foot from the leach rock, the excavator broke through the wall. At that time large quantities of water poured out into the trench. We dug down toward the bottom. Th~wer lin~ was at a level of 4.5 feet. The system was completely full of water. No visqueen had'been i~stalled over the septic rock when the system had been originally built. We continued to dig deepe~ until we approached the bottom of the system. We believe that there was probably seven feet of rock as shown nn the ins~n re~ort.__The area was disinfected · d ~ecause the soil piles were contaminate with sewage from the trench. The situation is as follows. There is no discoloration of the soil or any evidence that the sewage had been seeping out into the soil. 'Because there was no water percolating out of the full trench one can only conclude that the system was grossly under designed. I do not believe that the system is capable of handling the design load of 750 gallons of water per day. In reviewing the file, it was noted that Tobin Spurkland had done the percolation test in 1978, and had determined the percolation rate of 215 sqft/bedroom. Tobin's test hole was 45 feet in from the south line of the lot, and the inspection report shows the end of the system to be 90 feet in so the sewer system was installed approximately 50 feet from the te~t hol~. It would appear that this percolation test was run over the full depth of 20 feet. No effort was made to locate the test hole or to dig in the area of the test hole. The on-site sewage disposal system inspection report indicated that on October 30, 1978 the system was inspected by John Kennedy and was installed by Lovelace Excavating. It would appear that the several things have caused the system to fail. The first is that I do not believe the area where the system was installed could have aperc rate of less than 60 minutes/inch much less 20 minutes/inch. Secondly, both the excavator and the inspector should have been able to recognize that the soils were not as shown by the engineers soil's log. At that time the engineer should have been called to run a new percolation test and to either enlarge th~ system or change the location of it. Since it would appear that adding on to the existing system would be a useless excerise, the backhoe was moved to a location approximately 35 feet from the east side of the line nearly directly across from the exploration test hole. A test hole dug to a depth of 10 feet. The soils log is attached for your information. In this location the soils seem to be some what better than what was observed in the sewer system. The lower soils seem to be relatively tight with depth. From the type of soils it would indicate to me that the sewer system should probably be set approximately 4 to 5 feet ~elow the top of the ground as the soils below that tended to be some what stiffer. The percolation test in the shallow soils came out to be 256 sqft/bedroom which isn't greatly -different from what Spurkland found at the point where he tested. Based on the soils test, for a 5 bedroom house the sewer system should be a bed approximately 30 feet wide by 64 feet long. This would allow for 5 pipes spaced at 6 foot centers and 3 feet on each side. Because of the elevation difference between the septic tank and the better soils, a lift station would need to be installed in order to make the system work properly. There appears to be sufficient area on your lot to install this bed. If the s~stem is set at th~ ~?~h ~ndicated between 4 and 5 feet the ground could be moun~'d~-~one foot above it in order to get the' proper depth of cover over the field. Therefore insulation would not be needed. I would recommend that the lift station be placed adjacent to the field so that the length of pressure sewer is miminized. Because of the type of system an engineering design would be needed. If you have any questions please let me know. Mr. Jim Davis 6964 Windsor Drive Anchorage, Alaska 99502 Tobben ' purl land P.E. 81§§ Cranberry Anchorage, Alaska Phone (g07) 243-§;302 July 11,1978 Subject: Perk Test of Lot 10, Block F, Timberlux Subdivision. De.r Sir; Subject lot was perk tested July 10~ 1978. The soil log and the percolation rates tabulation is enclosed. tn general the soils encountered were silts with some mand and gravel. The soils were uniform with no noticable lenses of sand or gravel. The percolation rate was~found~to be 20 miniutes per inch. This rate will require an absorption area of 215 f~ per bedroom. This finding is only good for the general area where the test was conducted.