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HomeMy WebLinkAboutSKYHILLS PH 1 BLK 1 LT 12 Municipality of Anchorage Page 1 of 3 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: SW000035 PID Number: 011-122-13 .a,.: Wastewater System: ~New r-i Upgrade The Petersen GrouDt Inc. Address: 3820 Lake Otis Parkway, #204ABSORPTIONFIELD I No. O! Bedrooms: Pbone: 562-1170 Four (4) D Deep Trench ~ Shallow Trench ~Bed f"lMound [3Other LEGAL DESCRIPTION SoilRating: . 8 GPD/~,q Ft. ?otal Depth from original grade:l 2 Loc 12 Brock: I SkyhillS NO. I 4 F, 8 Township: I Range: I Section: Fill added above original grade: Gravel length: I F, , 5 0 I I WELL: D New 1-1 Upgrade Gravelwidth: 3 Ft. Numberloflines: I City Water F~ F,. 800 SOFt.; ASTM D3034 PVC FL Kincaid & Son 8/8-9/00 SEPARATION DISTANCES 0 Septic a Holding r"l S.T.E.P. ~m T..~' F.~ S~ 'r,,~k Ise~u~ Anchorage Tank 1 , 5 Well' N/A N/A N/A N/A N/A Material: Number of Compartments: :Steel Two Su~ace wate, )100' )100' N/A N/A N/A LIFT STATION - N/A Lot )5' )10' "N/A N/A N/A s~e ~. ga,o.~: Line I Foundation I Drain None Ioted 3n Lot · BENCH MARK Remarks: rl'h~ ~bdiv~]c)n ~ By The Nunicipal Water System. Back Deck / 1 0 0.0 Inspections performed by: MEA Dates: 1st 8/8/00 ~ .?~,~~~ 2nd 8/9/00. epartment of Health and Human Services approval '~. ~-.<-, ,. and approved by: {~.,~--~~- Date~/,2 '/,,~ -~o ' %~"--~'-~-~2~"~"~'~,,,, Reviewed Department of Health & Human Sorvlces 8~ L S~et, ~chmage, AK ~502~0 SOILS LOG- PERCEPTION TEST Pedo~ FOE Petemen Gmuo · · Date L~al ~pfion: Lot 12. B~k 1. S~ Hi~r9. Phe~e I ' .1 .2 I 1' OG/PT TESTHOLE NO. 12C Fine 'Sand · Some Silt SP · Was Groundwater ~ · Encountered? If Yet, What Depth? Depth to Waler Affe~ Monitoring Date: SLOPE SITE PLAN 8/8/00 S L. 0 P E ' - 12 15 16 17 1 'Fine Sand Clean SP Boffom of. Hole Reading Date · Gross Net Depth To Net Time Time ~/ater Drop · 2 9:44. 30 5.75" 5" · 3 9:45 .625" · '4 10:15 30 · 5.625" 5" 5 10:16 . .75' 6 10;46 : 30' 5.75' · 5" ', I, Perc. Rate: 6 Min./Inch Perc. Ho;e Diameier: 6" Test Run Between S FL and 6 Ft. '.. Comment.~: Percolation C.~vity Presoaked Prior to Testing. '*': Performed By: 'Mi~e And~r~n I, M;ch~el P Ande~ .. Certify That This ~'est Was Peffor~nad In Accordancc With Ail State and Municipal Guidelines In Effect On Th{{ Date: 12/18100 ". rldgt:~ 0007, '8['3e0 ;/~ :d [19l'ot~ .. '. ' '".* '.'" · Munic' pality'of Anchorage .... ~age 2 of 3 DEPARTMENT OF HEALTH AND HUMAN SERVICES ~ : ' .' '. '"' -. c~'~7 .. ENV RONMENTAL SERV CES DIVlSIO.N., . /' P.O BOX 196650- Anchorage, AK99519~650 343~7~ ~ ~'~ .~:. '>." "..'. .... On~ite Wastewater Disposal System or Well Inspection ,epo~ Pe~ ,Number SW000035 "' P D No.~11-122-13 ~~~ ~'' '~ :'~ ":~'? "'~. ';' .:..q.' .. .. A B C S1 19.1 11.7 S2 27.2 9.5 C4 26.0 26.0 M1 75.9 72.1 C5 74.9 71.4 - ' .... :- ~' .vce' · .-Four· Bedroom ...~ .... · · ~/:': ~.,:::'..e~e,~ -'.-: , '...,,'.~ llouse /~':. .' '.'. '"1 ~Z'::.":;',~,e~..:",'~: :l '.-'...'.:'. '.':'..,:'."...~::.~ ./:'.':',: : ~:.'-: .":'/ ', /-5/~<,:'~. "' '~. -':/.' ~ ~ '~ :"' ' ': ',': .'" ' ': ':"' ': ' I ;-.: :.....:.. "'-~-.' ':-/' /,~, :>:.. .../>., :'..:...~. ~ . I :: .... . .... I : .: :-.,.. · :. .~;. ::' :.:...j. ..'.' '. .... :. >: .... ':' ~''... ' .*~ .'. :': . .'. -.,';7 ~..',.' . ~ · "~;.'? '.1~~..'~?:~:: .'..' ~ " ' x ' ' . , . I ....... I-' · ." .... . .:. ~ . . . .... ., ...: .............. .........~ '~.:: _,~::~ '. " ~~",:;':~.. I- - ~-~ ~ , ' '.."'.. SC*-~,. -~ · ' :.'".'/ ~: ~,~.,, .... ~.. ",.." ......' ".. ~l. =GU . ' · ~.'.~J-~ .... .... .... · . , ....., ... ...... . . . .;...- .... ... , ~.., ,,~-~~~-~ MunicipalityofAnchorage , .., . DEPARTMENT OF HEALTH AND HUMAN SERVICES ENVIRONMENTAL SERVICES DIVISION P.O. Box 196650 - Anchorage. AK 99519-6650 - 343-4744 On-Site Wastewater Disposal System or Well Insp~ctlon Report Permit Number SW000035 Page 3 of 3 PID No. 011.122-13 ~ 98.7 m uu 1,250 Gallon I ~ 93,7 SeD. I 9' 3.51'' ~'1' 24.5' . 97.5 Geotextile Drainfield Fabric' Rock 78.5 50' PROFILE AS-BUILT 92.5 ~84,6 MUNICIPALITY OF ANCHORA GE Department of Health and Human Services On-Site Services Program 825 L Street, Room 502 P.O. Box 196650, Anchorage, AK 99519-6650 (907) 343-4744 ON-SITE WASTEWATER DISPOSAL SYSTEM PERMIT Initial Date Issued: Mar 20, 2000 Expiration Date: Mar 20, 2001 Permit Number: SW000035 Legal Description: Skyhills Phase 1, Lot 12, Block 1 Design Engineer: 0014 Anderson Engineering Owner Name: The Petersen Group, Inc. Owner Address: 3820 Lake Otis Parkway, Suite 204 Anchorage. AK 99508- Parcel ID: 011-122-13 Site Address: 5200 East 112th Ave. Lot Size: 40861 SQ. FT. Total Bedrooms: 4 Permit Bedrooms: 4 This permit is for the construction of: [] Disposal Field [] SepticTank [] Holding Tank [] Privy [] Private Well [] Water Storage Ail 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 caiiing (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. ,~'5. *The following s~.ial provisions. , AT THE TIME OF CONSTRUCTION, THE ENGINEER SHALL PERFORM AN ADDITIONAL PERCOLATION TEST "IN THE VICINITY OF THE ABSORPTION TRENCH. Received By: "~c'~l,_z~ ~.~ ~ Date: --20--00 MUNICIPALITY OF ANCHORAGE Department of Health & Human Services On-Site Sewer/Well Permit Application Single Family Dwelling P.I.D. No. Property Owner Name: The Petersen Group, Inc.. Day Phone: 562-1170 Mailing Address: Legal Description: Lot Size: 3820 Lake Otis Parkway, Suite 204 Anchorage, AK 99508 Lot 12, Block 1, Skyhills Subdivision Phase 1 40,861 Square Feet Inspections will be conducted by: Number of Bedrooms: Four (4) X Approved Engineering Firm __ Municipality (permit fee included) Does your house contain any of the following: Hot Tub, Swimming Pool, Therapy Pool, Jacuzzi, Or Water Softener Unit? No If yes, which one? This Application is For: Sewer Only XXX Sewer and Well Sewer Upgrade Well Only__ I certify that the above information is correct. I further certify that this application is being made for a Single Family Dwelling and in accordance with applicable Municipal Cedes. Engineer ANDERSQNiENGINEERING, " : P~O. BOX: 240'Z73' · ~N _C:,EI~.0L~ E. ~K 99524, $22',7.7_,7_.3~. ' -~522~6779 (FAX}?. . March 15, 2000 Municipality of Anchorage .. · . Department of Health and Human Services 825 %" Street Anchorage, AK 99502-0650 Subject: Lot 12, Block 1, Skyhills Subdivision Phase I Septic System Tank Replacement Permit Application Impacts to Adjacent Properties DearOnsite Services Engmeen- . . The'owner of Lot 12, 'Block-I, Skyhills Subdivision. Please 1 intends to construct a four bedroom home on the lot. We are therefore applying for a permit to construct a septic system to serve the house. The Site Plan shows the location of the new system with the alternate site. The subdivision is currently served by the City water system and the water service is also shown on the plan. The system will be constructed a minimum of 10' from the new water line. · The testholes placed on the lot revealed clean to silty sands with gravel which percolated at 6 minutes perinch in the area of the new absorption trench..No groundwater was encountered nor was any noted during the monitoring period, We have therefore designed a deep absorption trench system to dispose of the septic effluent generated in the house. The distribution pipe will be placed at 3' below the surface with 8' of drainfield rock beneath the pipe, The total depth of the system will be 11' from odginal ground. . The ground surface on the lot slopes from west to east at varying grades in the area of the new trench..The new absorption trench will be constructed across' the slope in accordance with Municipal requirements.- Surface grading wilt .be accomplished to assure drainage is away from the finished trench surface. Efforts will 'be made to · protect the trench from surface runoff water. .The subdivision is currently served by the Municipal water system and. all setbacks a. re easily achieved from the water service. In addition, the new system wdl not conflict w~th existing systems or those to be constructed in the future. If the system is constructed in accordance with our design the following statements apply: t. The system, if constructed as designed, will have no adverse impact on the wells In the area or those to be constructed inthe future. The subdivision is currently served bythe Municipal water system. . , - ' ' .2. The system,_if constructed as designed, will have no adverse impact on existing. Lot 12, Block '1, Skyhills Phase I -March 15, 2000 . Page Two septic 'systems in the area or those to be constructed in the future. The system, If construe:ted as designed, will have no adverse impact on reserved space, either surface or subsurface, on any lots located in the area. The system, if constructed as designed, will have no adverse Impact on drainage patterns in the area. The current drainage pattern will be maintained.' Sincerely, SkyHills Subdivision Test Hole Locations T~CTA 11 10 g THIS PROJECT. -- 7 G 'n-~-~s 4 G 5 4 I I 6 0 4 10 11 13 14° ~28 20 17 AREA MAP SCALE 1' = 200' PLAT NO. 98-134 SKYHIELS SUBD., PHASE LOT .12, BLOCK 1 40,861 S.F. · ~'. : Gal ..... ~ttc ./ '50 ' 'T.on~" X '3 ' -' X 8'.' Effecti~ Absorption Tz __.Four ~ '"Bedroom .'j ltome ~rl'H11 - : .. Altefnat~'Site' Wide ~ Depth ~nch SITE PLAN SCALE 1" = 40' LOT 12, BLOCK 1, SKY HILLS NO. 1 DESIGN FACTORS: SYSTEM REQUIREMENTS: Four Bedroom Home Perc. Rate: 6 MinJInch Application Rate: .8 GPD/SF Deep Trench System 1,250 Gallon Septic Tank 8' Drainfield Rock 4 Bedrooms X 150 GPD I .8 GPDISF = 750 SF of Absorption Area 750 SF/16 SF/ LF of Trench = 46.9 LF Trench Length Therefore: Construct a Deep Absorption Trench System With One Lateral. 25' in Length with 8' of Dralnfield Rock Beneath the Distribution Pipe. Distribution Pipe In Trench Placed at 3' Below the Original Ground Surface. Total Depth to be 11' From Original Ground Surface. Mound Over Trenches to Provide a Minimum of 3' of Cover. Natural 2.5' Backfill Geotextile Fabric 6" 46 Perforate~ PVC (Slots Down) ~>~.~.~', ~, " Rock ~:~'~'~7""~" ='IT"'~ ' ~ ,~~~ TYPICAL DEEP TRENCH SECTION i~~ (NO SCALE) Drainfield NOTE: Grade Area Over Trench to Drain Away. Provide 3' Cover Over Trench and 4' Over Tank or Insulate. Maintain 10' Separation From Lot Line. Maintain 10' Separation From Water Service Line. Municipality of Anchorage. DEPARTMENT OF HEALTH & HUMAN SERVICES 825 "L" Street, Anchorage, Alaska 99502-0650 SOILS LOG ~ PERCOLATION TEST PERFORMED FOR. L H Construction, '' loc-- 1. 3- 4- 5- 6- 7- 8- 9- 10 12 13 14 15 16- 17- 19- 20, Township, Range, Section: SLOPE COMMENTS WA'; GROUND WATER ENCOUNTERED? SITE PLAN 1 Reading . Date Gross Net Del~th to Net Time · Time Wate~ Drop ,& I~'1~ -/~ ,'" ~.~s ~ PERCOLATION RATE ~ ~:~ {mmute~mctt) PERC HOLE DIAMETER TESTRUN BETWEEN ~'~' 'FTAND F~' ET Perc cavity was presoaked prior to testing. PE~*CO~MEO Bv~~F i ~u~RTIFY THAT T.HIS ~EST WAS PERFORMED IN · ,,ichael E. Anderson ACC~DANCE WITH ALL STATE AND MUNICIPAL GUIDELINES IN EFFECT ON THIS DAT[ DATE Municipality of Anchorage. DEPARTMENT OF HEALTH & HUMAN SERVICES · 825 'L" Street. Anchorage. Alaska 99502-0650 SOILS LOG m PERCOLATION TEST PERFORMED FOR:. L It Construction LEGAL DESCRIPTION: 1 2 4 .5 6- 7 8 9- 10- 11 14- 15- 17- 18°- 19- 20- · Township, Range, Section: . SLOPE H !1 H-NH H-NH II I1~1 I-I Il'Fl 11111 SITE PLA WAS GROUND WATER ENCOUNTERED? IF YES, AT WHAT DEPTH?. PERCOLATION RATE *~ (m,nuteshnch) PERC HOLE DIAMETER TBST RUN BETWEEN ~" FT AND ~ FT ' COMMENTS Perc cavity was presoaked prior to ~estin~.' PERFORMED -:---- - I IFY THAT T~IS T~ST WAS PERFORMED IN · Michael E. Anderson ?//~../,,.~ · ACCORDANCE WITH ALL STATE AND MUNICIPAL GUIDELINES IN EFFECT ON THIS DATE. DAT~ [~ [" Municipality of Anchorage. · DEPARTMENT OF HEALTH & HUMAN SERVICES 825 'L" Street. Anchorage. Alaska 99502-0650 SOILS LOG -- PERCOLATION TEST PERFORMED FOR: · E A, OES R,FT, ON: L H Con~truction, Inc. · I DATE PERFORMED: ~-I~/~e, Township. Range. Section: SLOPE SITE I 2 3 4 5 6- 7- 8- 9- 10- 11- 12- 13- 14- 15- 16- 20 WAS GROUND WATER ENCOUNTERED? $ IF YES. AT WH~T /' DEPTH? Reading Date Gro~ Net C)e~th to Net Time Time Wate~ Droo . ~o~ ~ ~,~ PERCOLATION RATE 1/~:' ~'EST RUN BETWEEN ~" cavity was presoaked prior to __ (m,nules,'lncl~) PERC HOLE DIAMETER FT AND ~ FT . testing. COMMENTS Perc PERFORMEOB',: :,.~;~'~ 'Michael E, Anderson 7Y~J~J~ ~,F.T~.H,S T~ST W~'PEnFORMED,. ACCORDANCE WITH ALL STATE AND MUNICIPAL GUIDELINES IN EFFECT ON THIS DATE. DATE: PERFORMED FOR:. Municipality of Anchorage. DEPARTMENT OF HEALTH & HUMAN SERVICES 825 "L" Street. Anchorage. Alaska 99502-0650 SOILS LOG -- PERCOLATION TEST L Iff .Construction 6- 7- 8- 9- 10- 1,- 12 13 14 15 18- 19- 20- COMMENTS III1,' IIII. IIJ,I I I IIIJ, I Illl WA~ GROUND WATER ~J ENCOUNTERED? ~ SITE PLAN IJ I .11/I-'"1 I_L ACCORD.NCEW,T. AL-~STATEANDMUN,C,P.L~U, DEUNES,ltNiE~Fh~IoN,.,SD~TEe. r~.o~ $/t~"/00 ON-SITE WASTEWATER DISPOSAL SYSTEM CONSTRUCTION AND MATERIAL SPECIFICATIONS SUBJECT: LOT 12, BLOCK 1, SKYHILLS SUBDIVISION, PHASE 1 GENERAL: The scope of this project includes the procurement and Placement of a new 1,250 gallon septic tank. It also includes the construction of one new 50' long x 3' wide x 8' effective depth absorption trench at the location shown on the attached Site Plan. The total depth from original ground of the trenches will be 11' below ground. Mounding over the trench may be required to provide a minimum of 3' of protective cover, A minimum of 10' separation must be maintained from the water service line to all components of the new septic system and the reserve system. o Construction shall be in accordance with the approved site plan, 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 all underground utility locates and for the layout of the septic system and verification of the location of all lot lines. Unless specifically agreed otherwise, the contractor shall be responsible for final grading areas subsequently depressed from Soil settling.. Property owner shall be responsible for revegetation of affected areas unless specifically agreed otherwise. Contractors installing wastewater disposal systems must be certified by the Municipal Department of Health and Human Services for system installations. Owners installing their own systems must receive prior approval from D.H.H.S. before beginning system installation. SEPTIC TANK INSTALLATION 1, The new 1,250 gallon septic tank must be procured from an approved source and installed at the location shown on the plans. A septic tank is to be constructed by a cedified 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. Tanks installed without 4' of cover shall have a minimum of 2" of direct burial insulation. ' ' Lot 12, Block 1, Skyhills, Phase 1 March 15, 2000 Page 2 of 3 6. A foundation cleanout shall be installed one to four feet from the building foundation. Two cleanouts are required between the tank and the drainfield. 7. Final grading over the tank shall be such that a positive slope exists away from the septic tank. DRAINFIELD CONSTRUCTION: The drainfield shall be constructed to the dimensions shown on the design. The bottom of the trench shall be within 2" of level. Distribution piping must be placed level with perforations down atop a level bed of drainfield rock. Rock should then be placed over the pipe to provide a minimum of 2" of cover. A silt barrier or geotextile fabric must be placed between the drainfield rock and the natural soil backfill. Monitor tubes must be 4" in diameter and in~talled at the locations shown on the design. The portion below ground must be perforated. Contractor shall vedfy the septic tank .and drainfield are a minimum 100' away from any private water wells in the area, 150' from a Class "C" Well or 200' from any community well. Direct bury insulation must be placed over the distribution system if less than 3' of backfill depth is available. Finish grade over the trench must be mounded to prevent settlement or depressions. 7. Grade area surrounding the absorption trenches to drain away. o A minimum 2' of accepting soil is required below the drainfield rock for a 5'.wide trench. Contractor shall verify this condition prior to placement of the rock. All pockets of unacceptable materials must be removed and replaced. MATERIAL SPECIFICATIONS: 1. Septic tanks must be constructed by a Municipally approved septic tank manufacturer, The following pipe materials are approved for use in septic system installations in the Municipality of Anchorage: Cast Iron (perforated and solid), ASTM D3034 or P.V.C. (perforated and solid), ASTM F810 or H.D.P,E, (perforated, but not solid) and ASTM D2662 or A.B.S. (perforated and solid). Insulation shall be at least 2" thick extruded direct burial polystyrene (Dow Chemical Co. Styrofoam .HI or equal). Septic tank inlets and outlets shall be fitted with watertight couplings (Caulder, Fernco, or equal). · ' Lot 12, Block 1, Skyhills, Phase 1 March 15, 2000 Page 3 of 3 5. A permeable geotextile fabric (Typar, Mirafi or equal) must be installed between the final drain rock layer and the native soil layer. 6. All drain rock shall be .5" to 2.5" in diameter with less than 3% passing the #200 sieve. INSPECTIONS: A minimum of two inspections are required by Municipal Ordinance. These inspections must be conducted under the supervision of a professional engineer registered in the State of Alaska. The first inspection must be conducted after the excavation of trenches, beds or pits and before the installation of any gravel. A septic tank may be set in place, but may not be bacldilled. The second inspection must be conducted after the placement of the geotextile fabdc, gravel, distribution piping, standpipes, cleanouts and insulation. No backfill should be in place at the time of inspection. Contractor shall provide a copy of all field survey layout and construction notes for use in preparing the cedified as-built of the completed system. Parcel I. D 011-122-23 Gt @` Municipality of Anchorage V .r On -Site Water and Wastewater Program (907) 343-7904 S n r e T Y Certificate of On -Site Systems Approval 1. GENERAL INFORMATION: Expiration Date: J ZZ Complete legal description SKYHILLS PHASE 1: BLOCK 1, LOT 12 Location (site address) 6801 Sky Circle *Anchorage Current Property owner(s) Lance Wilber Day phone 947-1338 Mailing address Real Estate Agent 2. TYPE OF DWELLING: ® Single Family (w/wo ADU) ❑ Duplex ❑ Multiple Dwellings (Single Family and/or Duplex) Day phone 3. NUMBER OF BEDROOMS: 4 4. TYPE OF WATER SUPPLY: TYPE OF WASTEWATER DISPOSAL: Individual Well ❑ Individual Individual Water Storage ❑ Holding Tank ❑ Community Class_Well ❑ Community ❑ Public Water System ® Public Sewer ❑ WaiverNariance request for: Distance: Received by: COSA to be released to the engineer, unless otherwise requested by the engineer. COSA Fee $ jW Date of Payment Receipt Number 09 S 3 9 G COSA # 05G 2 I I Z T6 Date: Waiver Fee $ Date of Payment Receipt Number Waiver # C6°1 5. STATEMENT OF INSPECTION BY ENGINEER As certified by my seal affixed hereto and as of the validation date shown below, I verify that my investigation, based on procedures outlined in the Certificate of On -Site Systems Approval Guidelines for this application, shows that the on-site water supply and/or wastewater disposal system is (are) safe, functional and adequate for the number of bedrooms and type of structure indicated herein. I further verify that based on the information obtained from the Municipality of Anchorage files and from my investigation and inspection, the on-site water supply and/or wastewater disposal system is(are) in compliance with all applicable Municipal and State codes, ordinances, and regulations in effect at the time of installation. Name of Firm: Gayness Enqineerinq Group, Ltd (GEG) Phone: 907-337-6179 Address: 3701 East Tudor Road. Suite 101- Anchorage, Alaska 99507 Engineer's Printed Name: Jeffrey A. Garness Date: In conducting this evaluation, GEG provided an engineering evaluation of the well and/or septic system in accordance with the guidelines and regulations established by the Municipality of Anchorage and industry practices. The reported results describe the condition of the system/s on the date/s of the evaluation. Separation distances were measured to readily identifiable features. Hidden defects or encroachments may exist that were not identified during the evaluation. The operational life of all wells and septic systems depend upon a variety of variables, including but not limited to, soil conditions, groundwater levels (that may fluctuate during the year), quality of construction (materials and workmanship), and the water usage of the family utilizing the system/s. These conditions can vary, and are outside the control of GEG. Satisfactory test results do not guarantee future performance of the system/s; therefore, GEG makes no warranty (express or implied) regarding the future performance of the well or septic system. GEG makes no representation whether an alternative well or septic system can be installed on the property in the event either of the current systems fail to perform adequately in the future. The content of this report is for the sole benefit of the person/party that retained GEG to perform the evaluation. Reliance upon the information provided in this report by any other person or party (including subsequent property purchasers) is not authorized, nor will it confer any legal right whatsoever. 6. DSD SIGNATURE System #1 Approved for 4(_ bedrooms System #2 Approved for Disapproved Conditional approval for bedrooms bedrooms, with the foll /1 x/4/ :Y A G ess B•, �Y CE— 95 �� @r ' ' • .. .. alp #AECC884 G�Qok(((Qopww,{�,ii��� stNA70'_ IVD m P�I:r q PRoGAAn ER o FA.— Original Certificate Date: `' —21 The Municipality of Anchorage Development Services Division (DSD) issues Certificates of On -Site Systems Approval (COSA) based only upon the representations given in paragraph 5 by an independent professional civil engineer registered in the State of Alaska. The Municipality of Anchorage is not responsible for errors or omissions in the professional engineer's work. 7. ATTACHMENTS: COSA Checklist Nitrate Advisory Septic -System Advisory Arsenic Advisory Well Flow Advisory Other Legal Description: SKYHILLS PHASE 1; BLOCK 1, LOT 12 Parcel ID: 011-122-23 If more than 1 septic system on lot: COSA Checklist # of Structure served by this system A. WELL DATA ❑ Well log is filed with Onsite (or attached) Date drilled Total depth ft Cased to ft ❑ Sanitary seal is functioning correctly ❑ Wires are properly protected Casing height (above ground) in. Date of flow test for Static wat vel at beginning of test ft. C ments Well production at time of test'' gpm Water storage tank vo.luriie gallons t,t Well disinfeot,5 f� fo coliform test? ❑ Yes form bacteria is Negative Nitrate mg/L ❑ Nitrate less than MRL (ND) Arsenic ug/L ❑ Arsenic less than MRL (ND) Collected by Date of Sample AWWU WATER B. TANK DATA Age of tank(s) 21 years Tank type/material Measured operating fluid level in septic tank 50" ® Standpipes/foundation cleanout per record drawing Date of pumping G t D. ABSORPTION FIELD DATA DEEP TRENCH C. LIFT STATION ❑ Required maintenance completed Age of lift station years Lift station material Comments: N/A Which system tested (date installed) 8/9/00 Adequacy test date 5122/21 ® ALL standpipes present per record drawing Results ❑✓ Pass For 4 bedrooms Total measured depth from grade 11.08 ft (max) Fluid depth prior to test 78 in Measured depth to pipe invert from grade 3.75 ft (min) Water added `"534 gal ❑ N/A — pressurized field New depth "84 in ❑ Monitor tubes go to bottom of effective. If not, state 120 depth into effective 7-$ Elapsed time min ACode-required soil cover over field Final fluid depth 80 in ❑System presoaked Absorption rate 600+ gpd (Required if vacant for greater than 30 days prior to Any rejuvenation treatment (past 12 months) NONE date of test) N/A Gallons introduced N/A gallons If yes, enter date Comments/Deficiencies:.s., BELOW INVERT "SEE ATTACHED EMAIL FROM REBECCA CARROL WITH MOA ONSITE REGARDING WATER ADDED COSA Checklist yellow sheet E. SEPARATION DISTANCES From Private Well on Lot to: (Please enter distances if less than required or if community well) Septic Tank/Lift Station on Lot > 100' Community Sewer Manhole/Cleanout > 100' ❑ Yes if No ft ❑ Yes if No Neighboring Tank > 100' ❑ Yes if No ft Absorption Field on Lot > 100' ❑ Yes if No ft P,NQ,O Neighboring Absorption Fields > 100'—y'"'^� �f ss if No ft Com wer Main > 75' ❑ Yes if No ft Private Sewer/Septic Lin ._-2�' — Yes if No pjding' an k > 100' F] Yes if No Animal Containment > 50' ❑ Yes if No Manure/Animal Excreta Storage > 100' ft Private Wells > 100' Yes if No ❑ Yes if No From Septic/Holding Tank on Lot to: (Please enter distances if less than required) Building Foundations > 10' ❑ Yes if No *5 + ft Surface Water > 100' ft ft ft ft F✓ Yes if No ft Property Line > 5' ❑✓ Yes if No ft Wells on Adjacent Lots: Absorption Field > 5' ❑✓ Yes if No ft Private Wells > 100' Yes if No Water Main > 10' 0 Yes if No ft Community Wells > 200' [7✓ Yes if No Water Service Line > 10' F✓ Yes if No ft If septic tank is under driveway comment below From Absorption Field on Lot to: (Please enter distances if less than required) Building Foundation > 10' 0 Yes if No ft If absorption field is under driveway comment below Property Line > 10' Q Yes if No ft Wells on Adjacent Lots: Water Main > 10'✓71 Yes if No ft Private Wells > 100' Yes if No Water Service Line > 10' 177� Yes if No ft Community Wells > 200' Q✓ Yes if No Surface Water > 100' 0 Yes if No ft F. ENGINEER'S COMMENTS *HAFT rc)nF AT TIMF OF INSTALL DRAINFIELD WAS 88% FULL AT START OF ADEQUACY TEST. DRAINFIELD IS APPROACHING THE END OF ITS USEFUL LIFE. G. ENGINEER'S CERTIFICATION l certify that I have determined through field inspections and review of Municipal records that the above systems are in conformance with MOA COSA guidelines in effect on this date. COSA Checklist yellow sheet MECC884 ft ft ft ft Erik Widger From: Carroll, Rebecca M. <rebecca.carroll@anchorages Sent: Tuesday, May 25, 2021 12:58 PM To: Erik Widger Subject: RE: Skyhills Phase1; Block 1, Lot 12 Erik, We will accept this. We'll want to see the summary below, along with Jeff's stamp/signature. Becca Carroll Onsite Water and Wastewater iylunicipality of Anchorage c � 343-7908 From: Erik Widger <erik@garnessengineering.com> Sent: Tuesday, May 25, 202111:21 AM To: Carroll, Rebecca M.<rebecca.carroll@anchorageak.gov> Subject: Skyhills Phasel; Block 1, Lot 12 tr E.T_,r`rrL EMAIL] Becca, As discussed today, there was an oversite during a COSA adequacy test. I had made an error reading the water meter during the adequacy test and believed I had introduced approximately 634 gallons into the drainfield, when only 534 gallons were introduced. We are requesting that your department allow for this data to be utilized for a 4 bedroom COSA approval. This data is summarized as follows: C The subject lot has a 4 bedroom home. • The MT extends approximately 90 inches below the invert of the cleanout ® Prior to the start of the test there were 78 inches of liquid in the monitoring tube. ® After the introduction of 534 gallons the liquid level in the MT was 84 inches (6 inch rise) ® After a 120 minute recover period, the liquid level in the MT was 80 inches (4 inch drop) ® The drainfield absorbed approximately 356 gallons over the 120 minute rest period (600+ GPD) In short, while there was an oversite while reading the meter, we feel that there is minimal risk in allowing the test to be utilized for a 4 bedroom approval. Please let me know if the department will require the system be retested, or if we can utilize the previously mentioned data for COSA approval. Thank you Erik D. Widger, Consultant Garness Engineering Group, Ltd. 3701 E. Tudor Road, Suite 101 Anchorage, Alaska 99507 Phone: 907-337-6179 Cell: 907-632-7479 Website:rnu�v.garnessengineering.com 12 rn 5 r i U -ma�os c •V a ¢QVUUV VUOii c9=�an�inH�S'v'''SZ a` c R`- !2 i mou_9:2-:z-o�w>o�ozo"�Na a¢uoU`uou0ac�xzaactmi-»33z. JZ 9V9Lz d� j ice, t, yp f11, ry109 and .. .. ., S.. .. .. it .obi I� o N I s _ `` 22261 tag `) But co m Dzt r . 99ZZZ IaziiR c S -i-+ p � ,yam y , o ., Iazt 7 9 e SDI OOH � 6 q•, CO\ = - - v .... .. .. 4-1 N .. I Az y V7 N m IM le IGZL —� L U LZ �& Ln(��' GAO b �iJ=��aw=' r CN 0 J om �'- - 'vt l Ski r-•:yX:{_ 3 '..� IItL�.If{$ --'O�=ate �\// U C Q - '~..., ..... ,.~,..~-SteSewcesS~ton 825.L StreeH Room 502 ................. FOR A,SINGLE.FA ILY. DWELUNG ......... ...... - Current Prope~ owner(s),' ~he, Petersen Group, .-I~c. -.Day phone" 562-1 ~ 70:,1 . Mmhng ad~ras~ ~ ,3820 ,Lake Otis -Parkway., Suite -204 ',..Anchorage .. hE. 99508 ' Lending agency,, ' -.,' · .:' - · - , Dayphgne"'..', - '' . '. - Mailing add~ess Rehl EsMte Agent .' .... 'Day phone : , - Unless othe~ise requested, HM will be held by DHHS for pickup. H~ picked up by: -~ "' 2." NUMBER OF BEDROOMS: ...... F~ur"( 4 ) ........: ................... ~ ' ,- ~:~ "' 3[-"- ~PE OF WATER ~UPPLY:'" ~PE-OF W~STE~ATER'DJSPOSAL: ~-= - - Individual Well ................... ~ ....... Individual On:site ......... ~'~,?-' - ' ,5 .~-." ' Individual Water Storage ....... ~ .............. Individual Holding Tank .......... Community Class Well ~ Community On-site . - Publi~Water Sy~'e~'" '-' ~ ' "Public'Sewer . ~ . The Municipality of Ar;chorage Departmeni of Hehlth and Human Services (DHHS) issues cedificates of Health Authority Approval (HAA] based only upon the represe_ntat!ons gi~(en in paragraph 5 by an independent professional civil engineer registered in the State of Alaska. Certificates of Health Authority Approval are required for th.e transfer of title (except between spouses) on properties served by a single..family on-site wastewater disposal and/or water supply system. DHHSalso issues HAAs upon request to home owners. Certificates of Health Authority Approval are valid for 90 days from the date of issue for properties served by a private or Class C well and may be reissued with new water sample results le~ th'an :~0 days old. Certificates are valid for one year for properties served by Class A or B wells or a public water system. The Municipality .of Anchorage is not responsible for errors or omissions in lhe professional engineer's work. 72-025 (Rev. 01~0)' 5. STATEMENT OF INSPECTION BY ENGINEER - ,,. ,., , .~,,~ -~:,: !,,.,: :: As certified by my seal affixed hereto and a~'of the validation date shown below. I verify that my Investig~ti6n · ha~e~ bn procedures outlined in the Health Authority Al~)proval Guidelines for lhe Health Authority Aopro~;al ' appl cat on show that the on-s~te water supply and/or wastewater d~sposa system s safe. funct ona and :adequate for the number of bedrooms and type of stmctur~ indicated herein. I further verify that based on the information obtained from the Municipality of Anchprage files and from my investigation and inspection, the on- site water ~upply and/or wastewater disposal system is in compliance with all applicable Municipal and StAte codes, ordinances, and regulations in effect at th~ time of installation. Name of Firm Anderson ~Engineering , ': :. ~' o -7773 Address P.O. Box. 240773-i :,Anchorage,, AK 99524'·' Engineer's Printed Name Michael E. Anderson, P.E. 6ate 12/14/00 6. DHHS SIGNATURE .............................. /.''~: ~Approved ~r /'/- bedrooms.., ~ ~ · Disapproved. · ' 'Conditional approval for ......... bedrooms, w~th the f611d~ng ',Additional C0:mments Attachments: HAA Checklist Septic System Advisory. Well Flow Advisory Maintenance Agreements Supplemental Engineer's Report Other Expiration Date: Original Certificate Date: Reissue Date: 75-025 (Rev. 01.'00)' Legal Description: A. WELL DATA Well type Date completed Total depth 'Municipality of Anchorage Department of Health and Human Services Division of Environmental Services On-Site Services Section 825 'L" Street Room 502 P.O. Box 196650 Anchorage, AK 99519-6650 ., ~#w.ci.a~chorage. ak.us (~)7) 343-4744 HEALTH AUTHORITY APPROVAL CHECKLIST Lot 12, Block 1, Skyhills Subdivision Phase I - Municipal Water System If A, B, or C provide PWSID # __ Sanitary seal ft ~ased to ft FROM WELL LOG Nitrate Collected by: Date of test Static water level ff Well production g.p.m WATER SAMPLE RESULTS: Coliform colonias/100 mi Date of sample:. B. SEPTIC/HOLDING TANK DATA Tank Type/Material Septic/Steel Date installed 8/8/00 Tank size Cleanouts ¥ Foundation cteanout ¥ Dateof pumping New Const:uct:Lon C. ABSORPTION FIELD DATA Date installed Length 50 Total depth 1:7 1~250 ParcelI.D.: 011-122-13 Well Log Wires properly protected Casing height (above ground) AT INSPECTION ft g.p.m __ mg/I Other bacteria__ colonies/100 mi in. gal Number of Compartments 2 Depression over tank N High water alarm Pumper 8/9/00 Soil rating (g.p.dJft2 or ft2fodrm) .8 __ft Width 3 ft Gravel below pipe 8 · ft Effective absorption area 800 fF Monitoring t~be Date of adequacy tastNew Const. Results (Pass/Fall) Fluid depth in absorption field before test __ in Water added__ Elapsed Time: min Final fluid depth in Any rejuvenation treatment (past 12 mo.) (Y/N & type). N M System type Deep Trench ft ¥ Depression over field N For bedrooms gal. New depth Absorption rate >= .If yes, give date __ in. g.p.d. N/A 72-0'~ (Rev. D. MFT'STATION- N/A Date installed "Pump on" level at __ Datum Size in gallons in "Pump off' level at __ in Cycles tested Manhole/Access High water alarm level at in Meets alarm & circuit requirements E. SEPARATION DISTANCES SEPARATION DISTANCES FROM WELL ON LOT TO: Septic tank/lift station on Io! Absorption field on lot Public sewer main Sewer/septic service line Holding tank SEPARATION DISTANCES FROM SEPTIC/HOLDING TANK ON LOT TO' No Well On Lot On adjacent lots On adjacent lots Public sewer manhole/cleanout Building foundation > 5 ' Property line > 5 ' Water main > 1 0 ' Water service line > 1 0 ' Drainage > 1 0 0 ' Wells on adjacent lots > 1 0 0 ' Absorption field > 5 ' Surface water > 1 0 0 ' >10' SEPARATION DISTANCE FROM ABSORPTION FIELD ON LOT TO: Building foundation > 1 0 ' Water main Surface water > 100 ' Property line > 1 O' Water Service line > 10 ' Curtain drain None Noted F. COMMENTS Wells on adjacent lots __ Driveway, parking/vehicle storage > 50 ' >100' I certify that I have determined through field inspections and review of Municipal records that the above systems are in conformance with MOA HAA guidelines in effe' ct on th,s date. HAA Fee $ '~1~ O . ~' Waiver Fee $ Date of Payment 12-- ]'~/~. Date of Payment -~' 72.026 (Rev.