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HomeMy WebLinkAboutAUTUMN RIDGE TR BAu 'umn Ridg T act B #015-054-$$ 4~ ] ~ Municipality of Anchorage Page '1 of 3 Development Services Department On-Site Water and Wastewater Program 4700 South Bragaw Street P,O. Box lg6650 Anchorage, AK g951g-6650 www,cLanchorage.ak.us (907) 3437604 ON-SITE WASTE'WATER DISPOSAL SYSTEM AND/OR WELL INSPECTION REPORT Permit Number:. SW020165 PID Number:. 015-054-33 .Northwood Homes Wastewater System: New Address: P.O. Box g2301 Anch, AK 99509 ABSORPTION FIELD Pho~e. Number of Bedrooms ,694-5890 Five {5) Deep Trench S<xl Re,rig Toial Dep~ fro~ o~g~nat LEGAL DESCRIPTION 1.2 GP~e 10 Tract B Autumn Ridge 3 FI. 7 TownsJ~ip: Range: Settlor1: Fdl ad(ted at3ove ong~nat grade: Graw*l Length: Well: Private 3 F,. 1 I' Class~cah~l (Private, A, I~. C): To(al Depth: Cased to: Total ab r,o~phon erea. P,pe Mate~at Private 360 Ft. 350 ~t 714 Fe ASTM D3034 PVC Aloine Drilling 6/12/02 145 F, Sanders & Sanders 6/28102 SEPARATION DISTANCES [] Septic [] Holding [] S.T.E.P. I-'1 Other. Septic Absorptior Lift Holding 'ubflc,~rlvate Anchorage Tank 1,500 Tank Field Station Tank Sewer Une w,, >100' >100' NIA N/A >25' Steel Two (2) s...~.water >100' >100' NIA N/A ~ / LIFT STATION - NONE ON LOT c.~. ~... None Noted Garage Floor Slab 100.0 FL ~ Engineer's ~tamp Inspections performed by: MEA Dates: 1= 6/28/02 ' · Department of Health and Human Servicj~s approval Municipality of Anchorage DEVEOPMENT SERVICES DEPARTMENT 4700 South Bragaw Street Anchorage. AK. 99519-6655 - 343-7904 On-Site Wastewater Disposal System or Well Inspection Report Permit Number:. SVV020166 Page 2 of 3 PID No. 015-0,54-33 / f AJtemate Site- /,z , / /%4, C6 C5 / c4 20' Trail Easement S1 S2 C3 C6 M1 A 63.0 69.5 80.0 115,0 173,0 B 43.6 54.1 63.5 100.9 165.0 C3 S2 S1 1.500 Gallon Septic Tank Well r~ <f 0 PLAN AS-BUILT SCALE 1" = 50' Municipality of Anchorage Department of Health and Human Services 825 'L' Street P.O. Box 196650 Anchorage. Alaska 99519-6650 Rk-.k Mysttomht~Jtwww.ct.a nchorage.ak.us Mayor Permit Number: #SW 020166 Date of Issue: 6-12-02 Parcel Identification Number: 015-0,f,4-33 Date Started: 12-1-02 DateCompleted:~ lswelllocatedatapprovedpermit location?[] Yes [] No Legal Description: Aufumn Ridcle Tr B Property. Owner Name &.addr~,.' Notthwood Homes PO Box 92301 _ .An~c. horage, A;aska 99509 .,,, Method ofDrilllng [~] aitzotaxy [] cable tool Borehole Data: Depth (trt) Soil Type, Thickness & Water Swam From To stick-up 0 2 fill matedal 2 34 gravelly silt 34 241 sandy sil~y gravel H20 241 256 silt 256 267 7ravel(y sift 267 339 silty water sand & gravel 339 360 You'v~ Just Given Me An Eg[~llll® Headach~ Caning type: steel Wall Thielmess: .250 inches Diameter:._6 inches Depth: 350 feet Liner Type: Dizme~er:. ~ inches Depth: Casing sfickup above ground: 2 feet fee[ Static water levd (from ground level): 145 feet Primping levek_240 feet after _2 hours pumping 15 gpm Recovery Rate: 15 gpm Method of Testing: aiF lift Well Intake Opening Type: I'-] Open End [] Open Hole [] Screened Start feet Stopped feet [] Perforations Start 245 feet Stopped 255 feet Groat Type: ~entonite #8 Volnme: ] bg Depth: Start 0 feet Stopped ~ feet Pump: Intake Depth feet Pump size , bp Brand Hame ~ Well Disinfected Upon Completion? [] Yes [] No Method of Dislnfeetion: chlorinq..t..ablets Commen~: Well Driller. Alpine Drilling & Enterprises PO Box 11O496 .Anchorage Alaska 99511 Attention: Thc well driller shall pmvi& a well log to the property owner within 30 days of completion and the pwperty MUNIClPALITY OF ANCHORAGE Development Services Department On-Site Water & Wastewater Program 4700 South Bragaw Street P.O. Box 196650, Anchorage, AK 99519-6650 (907) 343-7904 ON-SITE WASTEWATER DISPOSAL SYSTEM I WATER SUPPLY PERMIT Initial Date Issued: Jun 12, 2002 Expiration Date: Jun 12, 2003 Permit Number: SW020166 Legal Description: AUTUMN RIDGE TR B Design Engineer: 0014 Anderson Engineering Owner Name: Northwood Homes Owner Address: PO Box 92301 Anchorage. AK 99509- Parcel ID: 015-054-33 Site Address: 009370 BIRCH RD Lot Size: 116338 SQ. FT. Total Bedrooms: 5 Permit Bedrooms: 5 This permit is for the construction of: [] Disposal Field [] Septic Tank [] 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 DSD at least 2 hours prior to each inspection. Provide notification by calling (907) 343-7904 ( 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: ~~"--, v(v~ {~ ~- ~ ~, Date: Municipality of Anchorage Development Services Department Building Safety Division On-Site Water and Wastewater Program 4700 South Bragaw St. P.O. Box 196650 Anchorage, AK 99519-6650 www.ci.anchorage.ak.us (907) 343-7904 ON-SITE SEWEPJVVELL PERMIT APPLICATION FOR A SINGLE FAMILY DWELLING Parcel I.D. O1~'"" '~,~'Z/-- ~,'~ Permit Number SWOZO/66 Properly owner(s). Northwood Homes Mailing address (1) P.O. Box 92301 Anchoraqe, AK 99509 Mailing address (2) Zip Code Legal description (Lot, Block & Sub'd.) Tract B, Autumn Ridqe Subdivision Legal description (Section, Township & Range) Size //b I ~O¢¢ Acre~ Number of Bedrooms Five Lot (5) Day phone 694-5890 THIS APPLICATION IS FOR: Sewer Only Sewer and Well Sewer Upgrade THIS PROPERTY CONTAINS: Hot Tub Swimming Pool Therapy Pool E] Well Only [] [] Water Storage [] [] Jacuzzi [] [] Water Softening Unit [] I cedify that the above information is correct. I fudher certify that this application is being made for a Single Family Dwelling and is in accordance with applicable Municipal Codes. (Signature of property owner or authorized agent) II Permit Fees: -L'jt'O O Date of Payment: Receipt Number: ~-- ~'~ "~ (Rev. 12/00) Waiver Fees: Date of Payment: Receipt Number: ANDERSON ENGINEERING' P.O. BOX 240773 ANCHORAGE, AK 99524 522-7773 ' ' 522-6779 (FAX) June 4,2002 Municipality of Anchorage Development Services Department On-Site Water and Wastewater Program 4700 South Bragaw Street Anchorage, AK 99519-6650 Subject: Tract B, Autumn Ridge Subdivision Septic System Design and Permit Application Impacts to Adjacent Properties Dear Onsite Services Engineer: The owner of Tract B, Autumn Ridge Subdivision intends to construct a new six- bedroom home on the lot. We are therefore requesting a permit be issued for the' constuction of a well and septic system to serve the new home. The attached Site Plan and backup documentation identify the location and configuration of the new septic system and the parameters used in the design. Also identified on the plans are the location of the proposed 'well on the lot, test hole locations and the locations of existing wells and septic systems in the area. Drainage contours are also shown and current drainage patterns will be maintained after construction. The lot is composed primarily of fill material, but the absorption trench will be placed in native ground at the base of the fill slope. The test holes placed near the location of the proposed absorption trench and alternate site indicated poorly to well graded gravel with some silt and percolation rates of less than 1 minute per inch. No groundwater was found during the placement of the test holes and none was noted during the high water period. We are therefore proposing to place a 3' wide by 45' long by 7' effective depth absorption trench on the property. The total depth of the trench will be 10'. The distribution pipe will be placed at 3' below the ground surface. The ground surface on the lot slopes as shown on the attached Site Plan with a fairly steep slope from the top of the fill to the location of the absorption trench. The new absorption trench will be constructed in conformance with Municipal requirements and parallel to ground contours where possible. All components of the new septic system will be constructed a minimum of 100' from the well on the lot and those in the area and 10' from the service line from the well to the house. If the system is constructed in accordance with our design the following statements apply: Tract B, Autumn Ridge June 4, 2002 Page Two The system, if constructed as designed, will have no adverse impact on the wells in the area or those to be constructed in the future. The system, if constructed as designed, will have no adverse impact on existing septic systems in the area or those to be constructed in the future. o The system, if constructed as designed, will have no adverse impact on reserve 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, Michael E. Anderson, P.E. Attachments I1~ I~q.ft. 49th T I <ON Z AREA SYSTEM PLAN" SCALE 1"-- 100' .- · - TRACT B AUTUMN RIDGE SUBDIVISION · ...... .... !.. . ~:, ' . · -.,.-. .. : .. .. , . . ' :~__ NOTE: No Conflicts With Wells or Septic Systems on Neighboring Lots. SITE PLAN SCALE 1" = 50' TRACT B, AUTUMN RIDGE SUBDIVISION DESIGN FACTORS: SYSTEM REQUIREMENTS: Six Bedroom Home Perc. Rate: LT 1 Min./Inch Avg. Application Rate: 1.2 GPD/SF Deep Trench System 1,500 Gallon Septic Tank 7' Drain Field Rock 6 Bedrooms X 150 GPD 11.2 GPDISF = 625 SF of Absorption Area 625 SFI14 SF/LF = 44.6 LF Trench Length Therefore: Construct an Absorption Trench 45' in Length by 3' Wide With 7' of Drainfleld Rock Beneath the Distribution Lateral. Distribution Lateral to Be Placed 3' Below Existing Ground. Total Depth of Trench to Be 10' Below Existing Surface. Cover Over Septic Tank a Minimum of 4' or 2" of Insulation and 2' of Cover. 2.5' .5' Geotextile Fabric 7.01 '4" Perforated. PVC Schedule 40 Dra~nfie/d Rock NOTE: TYPICAL DEEP TRENCH SECTION (NO SCALE) Grade Area Over Trench to Drain Away. Minimum 6' Separation From Bedrock. Minimum 10' From Lot Line. Minimum 4' Separation From Groundwater. Minimum 100' Separation From Wells in the Area. Minimum 10' Separation From Water Service Line. · Performed Fo~ Bob Klein Legal .1 2 3 4 . 10 ~12 14 16 17 18 19 Description: _Tract B. Autumn Ridge Subdivision SLOPE PTIOL · ~-' ~'~. ........~.~ Depadment of Heal~ & Human Se~s ~~.~.f.~ ' · 825 L S~t, ~chorage, AK ~502~650 ~ ~ ~,~.~ .. - SOILS LOG- PERCO~TION ~EST ~* ~',, ' Date Ped~ [, ~1~/~ g- . SITE P~ GP/GM 12% - 18% Silt Vas Grour~dwater .- · Encouhtered? - · Ill Ye~,'What Depth?. Depth to Water After Monitoring Date: - No S · · '. : """ .L 'N<~h~-' ' P "· 1/22/00 E Reading. D~te . Gross, Net Depth To Net · '" Time "- Tir~e Water' Drop '. -. I 11'Dec 11:39 [ '. .2". · .' · 2 11:44. · 5 .10.5" .- 8.5" · 3 , 11:45 - 2.25- .- . : 4'.' 11:50 5 .10.75" ..'8.5" . 5 11:51 2" "'. · :- 6 -' 11:56 5 10.5" ' 8.5' Perc. Rate: LT 1 MinJInch :' Perc. Hole Diameter: Test Run Between 5 Ft. and 6 Ft. ' Bottom of Hole Comments: Percolation Cavity Presoaked Prior to Testing. ' .... · ·. ' ' ' Performed By: A- Harala. ' I, MicJlAeLE_A3d~z~ :.Certif3; That This Test Was Perf0rme(J In Accordance With All State and Municipal Guidelines In Effect On This Date: .t/20/00 · Municipality of Anchorage Department of Health & Human Services 825 L street, ,~chorage, AK 99502-0650 SOILS LOG - PERCOLATION TEST Performed For: [~ob Klein ' Legal Description: Tract B. Autumn Ridge Subdivision SLOPE PTIOL GPIGM 12% - 18% Silt G~'0und . Water Bottom of Hole Was Groundwater ....... Encountered?. .Ye~; -- ' I If Yes, What Depth? · - 10'..' Depth to Water ·. After Monitoring . 10' ' ' Date: "I,'22/00 '. S L '11 12 13 15 16 17 19 Rea. ding Date Gross Net · ' Depth To Net .. Time . Tim(i':' Water ' Drop '1 : 11-Dec 1:20 " 2'.. ' : 2 1:22 "2 10.5". "8.5 .... · 3 .- 1'.23 2.25' '. · '..' 4 1:25 2. 10.75" · 8.5" 5 ' 1:26 · 2". ~6 '1:28,· "' 2 -. 10.5". -'8.5' Perc. Rate: LT 1 Min./Inch Perc..Hole Diamete'r: 6' Test Run Between 5 Ft. and 6 Ft. Comments: Percolation Cavity Pre,~oakod Prior to Testing. . - :.., · · "- : Perform~:iBy:'A. Harala. .I,'~-/ I -..- ,.- :- Cedify That This Test Was Performed In Accordance With All State and Municipal Guidelines In Effect on This Date: ' 1/20/00 ' · Performed For:. Bob Klein Legal Description: Tract B_ Autumn Ridge Subdivision SLOPE 1 PT/OL 3 Was Grouhdmter ' Enmuhter~? No S - Gray 'Dop~toW~t&r ' . O ' : .. Date: .. ' a~t00 fi ..... 12 Reading Date Gross ·: Net ' Depth To.. Net ' ,. · . Tir~"" Time · Water· · Drop . '' 1 7-Dec. 3:15 . .. · .. · .3.5, J · .2 3:17 .2 . . 9.5" 6' - 3 · 3:18 .:3.5'' , - ·...' · . 4. .. 3:20 2 . 9.5'..- ' 6' . 5 .' '. 3:21 3.5" ' .'-'. 6 .' 3:23. .2 · ' . 9.5",. 6"' .Bottom of ·. Perc. Rat~: LT 1 MinJInch ' Perc. Hole Diameter: 6" . - Hole Test Run Between 4 Ft. ~nd 5 Ft. . ' " Comments: Percolation Cavity Presoaked prior to Testing. : . . . · Performed By:' A. Harala. I, - ' ;-: -. - ' certify That This Test Wa; Performed · In Accordance With All State and Municipal Guidelines'In Effect On This Date: 1/20/00 .:13 ' ... " · ' ' ~ ~o~H ,:,.~;~ =~' ~ Muni~pal~ of ~chomge ,~ .~.~ '~'~'~ ~' ·. . ~'~ . ~. ~ H~RSON ' ~ Depaffment of H~Ith & Human Se~es ~, ~,.?o~ =t~ t. ~_. : ~, 825 L Strut, ~chomge, AK 99502~ ¢~ ~... Cc .-';~ ~ - SOILS LOG - PERCO~TION TEST (~. ~;rp · ...... _~:~ ~- . Peffo~ F~: ~b ~ein · Date P~m~: 1~/99- . L~ Description: T~ct B. Autumn Ridge SuEdivision SLOPE ' SI~ P~' - ':. Was Gr(~ndwater .... . 9 .... Encounte['ed~'. :' :.No.' -. S ' - · " If Yes, What Depth? L - '. Depth to Water O ' ' ^fferMonitoring '': Rone" P ' " .... ' " Date: - ll2Zt00 - _~= ' ' : '" Reading Date ' Gross Net. Depth To- Net · Time" Time' Water . Drop 1. 7-Dec 2:14 3.13" ~ . ' 2 : .2:16 2 .10" 6.87"- 3 .., 2:17 3.25' · ... 4 2:19 2 .10t · 6.75" ' 5 ' : 2:20 3.25" · . 6 .... 2:22 , 2 .. 10" 6,75', GWIGP 19 Bottom of: Perc. Rail: LT 1 Min./Inch Perc. Hole Diameter:. 6" ' Hole - Te.~t Run Between 4 Ft. and 5 Ft .... Comments: Percolatio.n Cavity Presoaked Pri6r to TeSting. - " Performed By:,/~: Harala. I, i · : -- .- . Cedify That'This Test. Was Performed In Accordanc~ With Ail State and Municipal Guidelines In Effect On This Date: 1/20/00" ~ Performed For: Bob Klein ' "~ (o..' ~-" "~' " ." ' .,.'r~ · ,,ttQTH. Municipality of Anchorage '~ ........................ Department of Health & Human Services 825 L Street, Anchorage, AK 99502-0650 ~,~,'.. CE - 43 . ,~.~ . ..¢~ · SOILS LOG - PERCOLATION TEST c,. ¢.' .. . ,.-~ , · Date Performed: 12/'5199, Legal Description: ]'Fact B. Autumn Ridge Subdivision SLOPE I PTIOL 4 5 6 ./'7 Trace ML'- .- '9 10 .11 '12 -. .13 Was Groundwater ,. ,. ' Encountered? No · If Yes,.What Depth? · DePth to W~ter After. Monitoring . None Date: 'lP_?J00 Bottom of .... :. '... :- "...· ..'Hole .16 17 18" .: ·'. :... . 19 S 'L O .'." Reading Date Gross Net'. Depth To Net 'Qme Time Water D~op ..... Perc: Rate: No Pe~;c. · .'Comments: No Percolation Test Perfo~'med ' "' '" · 'Pe~'c. Hole Diammcier. '" Performed By:..A. Harala. "' ' I, i ~, -. -' ' Cedify That This Test Wa~ ib6rform~d:' · In Accordance With gll §tare and Municipal Guidelines In Elfeet On lhis Date: - '1/20/00' ON-SITE WASTEWATER DISPOSAL SYSTEM CONSTRUCTION AND MATERIAL SPECIFICATIONS SUBJECT: TRACT B, AUTUMN RIDGE SUBDIVISION GENERAL: The scope of this project includes the procurement and placement of a new 1,500 gallon septic tank at the location shown on the Site Plan. The project also includes the construction of a new 45' long X 3' wide X 7' effective depth absorption trench at the location also shown on the Site Plan and at the configuration shown. The distribution line in the trench will be placed at 3' below the existing ground surface. Total depth of the trench will be 10' below the existing ground surface. The new absorption trench and septic tank must be placed a minimum of 100' from the well on the lot and the wells on adjacent lots and 10' from the water service line between the well and the house. Intef~[-~ediate cleanouts will be required between the septic tank and absorption trench as the distance exceeds 100' and traverses a fairly steep slope. 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. o Unless specifically agreed otherwise, the contractor shall be responsible l'or final grading areas subsequently dopress~d from soil settling. Property owner shall be responsible for revegetation of affected areas unless specifically agreed otherwise. o 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 newl,500-gallon septic tank must be procured from an approved source and installed at the location shown. A septic tank is to be constructed by a certified septic tank manufacturer. Construction shall include two 4" cleanouts for pumping access. 3. The septic tank shall be sufficiently bedded to prevent settling or shifting of the tank. 4. All standpipes on the septic tank shall extend a minimum of 12 inches above final grade. Tract B, Autumn Ridge June 4, 2002 Page 2 of 3 5. Tanks installed without 4' of cover shall have a minimum of 2" of direct burial insulation. o 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: 1. 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. 3. A silt barrier or geotextile fabric must be placed between the drainfield rock and the natural soil backfill. 4. Monitor tubes must be 4" in diameter and installed at the locations shown on the design. The portion below ground must be perforated. o Contractor shall redly 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. o 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 ~"' s~,,,e,,,e,,, or depressions. 7. Grade area surrounding the absorption trench to drain away. A minimum 2' of accepting soil is required below the drainfield rock for a 5' wide trench. Contractor shall vedfy this condition pdor 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, 2. 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). 3. Insulation shall be at least 2" thick extruded direct burial polystyrene (Dow Chemical Co. Styrofoam HI or equal). Tract B, Autumn Ridge June 4, 2002 Page 3 of 3 4. Septic tank inlets and outlets shall be fitted with watertight couplings (Caulder, Femco, or equal). 5. A permeable geotextile fabdc (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: Municipal Ordinance requires a minimum of two inspections. 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 backfilled. 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 certified as-built of the completed system. MUNICIPALITY OF ANCHORAGE Development Services Department Phone: 907-343-7904 On -Site Water & Wastewater Section Fax: 907-343-7997 Certificate of On -Site Systems Approval Parcel I.D. 015-054-33 Legal description AUTUMN RIDGE TR B Site address 9370 BIRCH RD Anchorage AK 99507 Expiration Date: C/ 1-/* -2D Z 3 Current property owner(s) DAM REVOCABLE TRUST 2019 50% &MWM REVOCABLE TRUST 2019 50% X The On-site system(s) is/are approved for 5 bedrooms Conditional approval for Comments or advisories: bedrooms, with the following stipulations: Original Certificate Date: 7/7/2023 This Certificate of On -Site Systems Approval (COSA) is intended to demonstrate the subject system(s) is/are in substantial compliance with municipal code. The Municipality of Anchorage, Development Services Department (DSD) issues COSAs based upon representations provided by an independent professional engineer. The Municipality of Anchorage is not responsible for errors or omissions in the professional engineer's work. ATTACHMENTS: COSA Checklist X Well Flow Advisory Absorption Field Advisory Nitrate Advisory Tank Age Advisory X Arsenic Advisory Other COSA Approval_June 2022 MUNICIPALITY OF ANCHORAGE tEry" Development Services Department On -Site Water & Wastewater Section Phone: 907-343-7904 Fax: 907-343-7997 Certificate of On -Site Systems Approval Application 1. GENERALNF��k I ORMATION Parcel I.D. 015-054-33 Complete legal description AUTUMN RIDGE TRACT B Location (site address) 9370 BIRCH ROAD, ANCHORAGE, AK 99507 Current property owner(s) MEEKER REV. TRUST... Day phone 2. ON-SITE SYSTEMS SIZED FOR 5 BEDROOMS 3. TYPE OF WATER SUPPLY: ® Private Well ❑ Private Well serving 2 dwelling units ❑ Private Well serving 3+ dwelling units ❑ Community Well or Public ❑ Water Storage 4. TYPE OF WASTEWATER DISPOSAL: ® Private Septic ❑ Private Septic serving 2 dwelling units ❑ Holding Tank ❑ Community Septic or Public Sewer 5. SEPTIC TANK: ® Steel ❑ Plastic ❑ Concrete ❑ Fiberglass Age 21 - See advisory if steel older than 20 years 6. ABSORPTION FIELD: ❑ AWWTS ❑ Bed ® Deep Trench ❑ Wide Trench ❑ Seepage Pit Waiver request for: Expedited review requested: ❑ Distance: By applying for this entitlement, this property is subject to inspection by municipal On-site staff to verify the accuracy of the information provided. COSA Fee $ SYD p Waiver Fee $ Date of Payment (o 2 /Zo 2- Date of Payment COSA # oS c Z3 121 Waiver # P/ o '(?--Vs V- r -,r -Y_ / S � 20 2 3 COSA Applicalion.doc COSA Checklist Legal Description: Autumn Ridge Tract B Parcel ID: 015-054-33 If more than 1 well and/or septic system on lot, provide separate checklist. Structure served by this system A. WELL DATA ® Well log is filed with Onsite (or attached) Date drilled 5-12-02 Total depth 360 ft Cased to 350 ft ® Sanitary seal is functioning correctly ® Wires are properly protected Casing height (above ground) > 24 in. Date of flow test for COSA 6-14-23 Static water level at beginning of test 216.7 ft. Comments B. TANK DATA Measured operating fluid level in septic tank 48" Date of pumping 6-16-2023 ❑ Required maintenance completed, if AWWTS Comments: No AWWTS D. ABSORPTION FIELD DATA Which system tested (date installed) 2002 ® ALL standpipes present per record drawing Total measured depth from grade 11 ft (max) Measured depth to pipe invert from grade4!fft (min) ❑ N/A — pressurized field. q --P ❑ Per record drawings, field is insulated. ® Monitor tubes (MT) go to bottom of effective. If not, state depth into effective ❑ Presoaked required if (Required if house vacant or field not used for more than 30 days prior to date of test) Gallons introduced gallons date Any rejuvenation treatment (past 12 months) None If yes, enter date Well production at time of test > 7 qpm Water storage tank volume NA gallons Well disinfected for coliform test? ❑ Yes ® No ® Coliform bacteria is Negative Nitrate 3.28 mg/L ❑ Nitrate less than MRL (ND) Arsenic ug/L ® Arsenic less than MRL (ND) Collected by Tim Ecklund Date 6-14-2023 C. LIFT STATION ❑ Required maintenance completed Age of lift station years Lift station material Comments: No Lift Station Adequacy test date 6-14-2023 Results f g Pass Fluid depth prior to test 0 in Water added 1050 gal New fluid depth 6 in Elapsed time 20 min Final fluid depth 0 in Absorption rate >750 gpd FIELD STATUS — POST RECOVERY Effective depth (per record drawings) 84 in Effective depth used 0 in Effective depth remaining 84 in Comments/Deficiencies: Approximate total measured depths from existing grade. COSA Checklist.docx E. SEPARATION DISTANCES From Private Well on Lot to: (Please enter distances if less than required or if community well on lot) 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 Private Sewer/Septic Line > 25' ® Yes if No Iii ft Absorption Field on Lot > 100' ® Yes if No ft Holding Tank > 100' ® Yes if No ft Neighboring Absorption Fields > 100' Animal Containment > 50' ® Yes if No ft ® Yes if No ft Manure/Animal Excreta Storage > 100' Community Sewer Main > 75' ®Yes if No ft — ®Yes if No ft ❑ N/A — Served by Community Well (not on lot) or Public Water From Septic/Holding Tank and Absorption Field(s) on Lot to: (Please enter distances if less than required) Building Foundations > 10' ® Yes if No ft Surface Water > 100' ® Yes if No Tank to Property Line > 5' ® Yes if No ft Wells on Adjacent Lots: Field to Property Line > 10' ® Yes if No ft Water Main > 10' ® Yes if No ft Water Service Line > 10' ® Yes if No ft F. ENGINEER'S COMMENTS Private Wells > 100' ® Yes if No Community Wells > 200' ® Yes if No If tank or field is under driveway comment below Well production is very good. Absorption Field is very good Septic Tank is 21 years old I 6 ft ft G. CERTIFICATION & 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, indicates that the on-site water supply and/or wastewater disposal system appears to comply with applicable Municipal and State codes, ordinances, and regulations in effect at the time of installation, unless noted otherwise. Name of Firm FIRST WATER CONSULTING Phone 907-350-9566 Engineer's Printed Name CURTIS HUFFMAN, PE Date 6/26/23 Comments: This investigation was completed in compliance with MOA guidelines, regulations, and best industry practices / methods. The assessment of the condition of the well and septic applies only to the conditions as of the day tested. The flow and absorption rates may change due to subsurface conditions that may not be observed from the in land ,,�". �° • • ' • • surface, changes use, local soil characteristics, groundwater levels that may fluctuate during the year, quality of • . . �•� •• construction (workmanship & materials), the water usage of the family being served by the /� system and maintenance. The operational life of all well and septic systems are subject to these various and dynamic characteristics and are outside the control of the evaluator of the.. , , , , , • • • , well and septic system. Therefore, any or NO estimate of how long a system will function satisfactory for current or future occupants or guarantee that no unseen encroachments, deficiencies or discrepancies exist can be given by First Water Consulting & (It S Curtis Huffman �'c�'••. CE 128991 .4`y . Am cl`��F • . 6/26/23. AP , ® FD pROFESSI4�A�'.�® COSA Checklist.docx www.muni.org/onsite Septic Wank Advisory Certificate of On -Site Systems Approval # OSC231213 Subdivision: Autumn Ridge . 7"'ract B The septic tank for this property is 21 years old. The average life of an asphalt coated steel septic tank is 20 years. Typical replacement costs are $10,000 or more, not including engineering, surveying or MOA permitting fees. This advisory must be attached to all copies of the subject Certificate of On -Site Systems Approval. This is an example of what the metal of a 30 year old steel tank MAY look like. MailiriJg Address P O Box 196650 *Anchorage, Alaska 99519 6650 *www muri org Municipality of Anchorage On -Site Water and Wastewater Program (907) 343-7904 5 .: r C T . Certificate of On -Site Systems Approval Parcel I.D. 015-054-33 Expiration Date: "! l9 "Z�% �- 1. GENERAL INFORMATION: Complete legal description Autumn Ridge: Tract B Location (site address) 9370 Birch Road *Anchorage, AK 99507 Current Property owner(s) Rock & Johnna Reber Day phone 907-748-3500 Mailing address 9370 Birch Road *Anchorage, AK 99507 Real Estate Agent Day phone 2. TYPE OF DWELLING: ® Single Family (w/wo ADU) ❑ Duplex ❑ Multiple Dwellings (Single Family and/or Duplex) 3. NUMBER OF BEDROOMS: 5 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 [] Waiver/Variance request for: Received by: Date: COSA to be released to the engineer, unless otherwise requested by the engineer. COSA Fee $ $412.50 (COVID-19) Waiver Fee $ Date of Payment/Z/,-�z,-) Receipt Number 05ZCt 2 Cr COSA # OSC201676 Date of Payment Receipt Number Waiver # 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: Garness Engineering Group Ltd (GEG) Address: 3701 East Tudor Road Suite 101- Anchorage Alaska 99507 _ Engineer's Printed Name: Jeffrev A. Garness 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 dates 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 5� bedrooms System #2 Approved for Disapproved Conditional approval for bedrooms bedrooms, with the Phone: 907-337-6179 Date: !t) � _ C f'�^y "arnrr. cy a; #AECC884 P�\Iy OF(,gr�, ON-SITE WATER AND m ^_ r tpIS`V•'ATER z^ PROGRAM l B � Original Certificate Date: 2' 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 Stale 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 COSA blue sheet70.70.12.doc COSH Checklist Legal Description: Autumn Ridge; Tract B Parcel ID: 015-054-33 If more than 1 septic system on lot: COSA Checklist # of Structure served by this system A. WELL DATA 0 Well log is filed with Onsite (or attached) Date drilled 9112102 Total depth 360 ft Cased to 350 ft n Sanitary seal is functioning correctly 0 Wires are properly protected Casing height (above ground) 18+ in. Date of flow test for COSA 9/1/20 Static water level at beginning of test 218.1 ft. Comments B. TANK DATA Age of tank(s) 18 years Tank type/material Measured operating fluid level in septic tank 48" Standpipes/foundation cleanout per record drawing Date of pumping 5/4/20 D. ABSORPTION FIELD DATA Which system tested (date installed) 2002 M ALL standpipes present per record drawing Total measured depth from grade 10.6E ft (max) Measured depth to pipe invert from grade 4.16+ ft (mut) ❑ N/A — pressurized field I� Monitor tubes go to bottom of effective. If not, state depth into effective F Code -required soil cover over field A System presoaked (Required if vacant for greater than 30 days prior to date of test) "2043 Gallons introduced gallons Comments/Deficiencies: 'Pre-soaked on 911/20 COSA Checklist yellow sheet Well, production at time of test 7.0+ gpm Water storage tank volume N/A gallons Well disinfected for coliform test? ❑ Yes A No R Coliform bacteria is Negative Nitrate 1.43 mg/L ❑ Nitrate less than MRI. (ND) Arsenic ug/L ®❑ Arsenic less than MRL (ND) Collected by GEG, LTD. Date of Sample 7/7/20 C. LIFT STATION ❑ Required maintenance completed Age of lift station years Lift station material Comments. Adequacy test date "9r2no Results F,/ -]Pass For 5 bedrooms Fluid depth prior to test 0 in Water added 758 gal New depth 8 in Elapsed time 30 min Final fluid depth 0 in Absorption rate 750+ gpd Any rejuvenation treatment (past 12 months) 110 If yes, enter date n/a E. SEPARATION DISTANCES From Private Well on Lot to: (Please enter distances if fess than required or if community well) Septic Tank/Lift Station on Lot > 100' ® Yes Community Sewer Manhole/Cleanout > 100' ❑✓ Yes if No ft ❑✓ Yes if No ft Neighboring Tank > 100' M✓ Yes if No ft Private Sewer/Septic Line > 25' 1771 Yes if No ft Absorption Field on Lot > 100' P� Yes if No ft Holding Tank > 100` ❑✓ Yes if No ft Neighboring Absorption Fields > 100' Q Yes if No ft Water Main > 10' Animal Containment > 50' F�' Yes if No ft [771 Yes if No ft 0 Yes. if No ft Water Service Line > 10' F/� Yes if No Manure/Animal Excreta storage > 100' if septic tank is under driveway comment below Community Sewer Main > 75' 17, Yes if No ft E] Yes if No ft From Septic/Holding Tank on Lot to: (Please enter distances if less than required) Building Foundations > 10' ® Yes if No ft Surface Water> '100'fes]✓ Yes if No ft Property Line > 5' 1771 Yes if No ft Wells on Adjacent Lots: 0 Absorption Field > 5' Fv Yes if No ft Private Wells > 100' Q Yes if No ft Water Main > 10' i/✓ Yes if No ft Community Wells > 200' 0 Yes. if No ft 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' U Yes if No ft if absorption field is under driveway comment below Property Line > 10' F71 Yes if No ft Wells on Adjacent Lots: Water Main > 10' 0 Yes if No ft Private Wells > 100' Yes if No ft Water Service Line > 10' Q✓ Yes if No ft Community Wells > 200' Yes if No ft Surface Water > 100' Q Yes if No ft F. ENGINEER'S COMMENTS *Met code at time of installation G. ENGINEER'S CERTIFICATION I certify that 1 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 Orr !x ......�. ,Ja�f.,r// cy A. Gcrriess, 79,53 e ssiC�t��. . MECC884 £i55-54£ L0566 )IV'39VHOHDNV 3AI110 )AA01 0 60£6 9NIAMWIS ONVI 110H 95-50? 9J 66961 0Z0Z f7n1 30 AVO HI El SIHl V)ISVIV`3E)WOH7NV 1V O31V(l 'O310N NVH1 N3H10 1SIX3 SiN3WH3VONDN3 31SISIA ON ONV S3NIl Ala3dOVd 3Hi NIHIIM HV NOR3H1 O31Vf11Is S1N3W3AOUdWI 319ISIA 3H1 1VH1 ONV `V)ISVIV `1JIdiSIO 9NION0D3H 39V'dOHDNV (E6l-IOOZ1V7d) 9nS3DGIYAtWn1l7V 8L7Vb1 Ala3dONd O3SIN3S3O 9NIM01101 3H1 d0 A3Avns V 03WN032l3d 3AVH I 1VH1 A3I12l3J A93a3H I MVU SIH113S Sa3NHO3 ON A3Ac/ns17117GSV Isuoissal o��0 1"lOH "V 3NVHS 301 HO/ONVMON53A/5S30X3013/]031VW/XONddV3GA NW NO3H3HAIM OHS JN/AVdAAW 51N31Y3110NdHl 7VN011/OOV NO/11SOd LO S3Nf7,UU3d02/d 3N1Yt1313001035173BO1.LON3tlV.'JNIMVt/OS/Kl N01/V3ddV,SViY1VFLL 53N1730N3d .310N (Oat VO1ON/SS37Nn) NO3H3H AMOHS 10N3UV. L V"7d QN0032 /3H1 MO.ONR/63ddV380H1 AWU F13H10 bN003F1d0sW.7n3SV3 53An30N3)HO S1N3iY3A0YdNl "53F1R10nHL, 7VNOLUOOV!7N/NOLUSM2/OdO3Sn3B0110N SIONV 'S1,V31Y35V3t10/ONVS3Nr7107 031LV7d ONV53Nn1JnF1LSJNl[5/X3N33ML3BS10IZdN00 .iNVMOH501,(77VJ/dL03dS5NOLUl1/1SNLJN/ON37d035n3H1 LOjS/N032/3HNO11MN2/OdN/3H1 Municipality of Anchorage Development Services Department Building Safety Division On-Site Water and Wastewater Program 4700 South Bragaw St. P.O. Box 196650 Anchorage, AK 99519-6650 www.ci.anchorage.ak.us (907) 343-7904 CERTIFICATE OF HEALTH AUTHORITY APPROVAL FOR A ,SINGLE FAMILY DWELLING Parcel I.D. 015-054-33 GENERAL INFORMATION Expiration Date: Complete legal description Tract B, Autumn Ridge Subdivision Location (site address or directions) Birch Road near Abbott Road Current Property owner(s) Mailing address Lending agency Mailing address Real Estate Agent Mailing Address Northwood Homes P.O. Box 92301 Anchorage, AK 99509 Day phone 694-5890 Day phone Day phone Un/ess otherwise requested, HAA will be held by DSD for pickup. 2.. NUMBER OF BEDROOMS: Five {5) TYPE OF WATER SUPPLY: Individual Well Individual Water Storage Community Class Public Water System Well TYPE OF WASTEWATER DISPOSAL: [] . Indivi.~.u~l On-site [] [] Individqal Holding tank [] [] CommunityOn-site ~ ' [] [] Public Sewer [] The Municipality of Anchorage Development Services Department (DSD) Issues Certificates of Health Authority Approval (HAA) based only upon the representations given in paragraph 5 by an independent professional civil engineer registered in the State of Alaska. Certificates of Health Authority Approval are required for the transfer of title (except between spouses) for properties served by a single family on-site wastewater disposal and/or water supply system. DSD also issues HAAs upon request to homeowners. Certificates of Health Authority Approval are valid for 90 days from the date of issue for properties served by a pdvate or Class C well and may be reissued with new water sample results less than 30 days old. (Certificates may be reis.~ued for a period of up to one year with valid water samples.) 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 the professional engineer's work. 4. STATEMENT OF INSPECTION BY ENGINEER Se As certified by my seal affixed hereto and as of the validation date shown below, I vedfy that my investigation, based on procedures outlined in the Health Authority 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 vedfy 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 cemp~iance with all applicable Municipal and State codes, ordinances, and regulations in effect at the time of installation. Name of Firm Anderson Engineednq Address P.O. Box 240773 Anchoraqe, AK 99524 Engineer's Pdnted Name Michael E. Anderson. P.E. Phone 522.7T/3 Date 2/12/2003 DSD SIGNATURE Approved for Disapproved. Conditional approval for bedrooms. bedrooms, with the following stipulations: Additional Comments Attachments: HAA Checklist Septic System Advisory Well Flow Advisory X Maintenance Agreeme.~..~ Supplemental Enging~r's Report Other · .i Original Certificate Date: 2 ///-/-/~" ~ ! / (Rev. 1 ?JO0) Municipality of Anchorage Development Services Department Building Safety Division On-Site Water & Wastewater Program 4700 South Bragaw St. P.O. Box 196650 Anchorage, AK 99519-6650 ~w~w.ci.anchorage.ak.us (907) 343-7904 HEALTH AUTHORITY APPROVAL CHECKLIST Legal Description:. Tract B, Autumn Rid,qe Subdivision A. WELL DATA Well type Private Date completed 6/12/2002 Total depth .360 ft. If A, B, or C provide PWSID # ~ Sanitary seal (Y/N) Y Casedto 350 lt. FROM WELL LOG Data of tast 6/12r2002 Static water level t45 Well production 15 WATER SAMPLE RESULTS: Coliform /-> colonies/lO0 mi. Date of sample: '~-/,/z~ ~ B. SEPTIC/HOLDING TANK DATA Tank Type/Matarial SeptldSteel Tank size t,500 gal. Foundation cleanout (Y/N) Y Date of pumping C. ABSORPTION FIELD DATA Date installed 6/28/2002 Length 5t Total depth tt It. fL g.p.m. Nitrate /, %7 mg./I. Collected by: Parcel ID: Well Log (Y/N) Y Wires properly protected (Y/N) Y Casing height (above ground). >.2 AT INSPECTION g.p.m. Other bacteria 0 colonies/lO0 mi. Number of Compartments _2 Depression o~,er tank (Y/N) _N Pumpei' N/A Date installed 6/28/2002 Cleanouts (Y/N) Y High water alarm (Y/N) N If yes, give date Date of adequacy test Results (Pass/Fail) Fluid depth in absorption field before test ~ in. Water added Elapsed Time: ~ min. Final fluid depth in. Any rejuvenation treatment (pest 12 mo.) (YIN & type) N Soil rating (g.p.d./ft= or ~/bdrm) t2 GPD/SF ff. Width .3 ft. Eft. absorption area 714 ~ Monitoring tube Y System type .. Deep Trench 'Gravel below pipe. 7 fL Depression over field N For bedrooms gal. New depth in. Absorption rate >= g.p.d. LIFT STATION Date installed Size in gallons 'Pump on' level at in. 'Pump off' level at in. Datum Cycles tested E. SEPARATION DISTANCES Fe Manhole/Access (Y/N) High water alarm level at Meets alarm & circuit requirements? SEPARATION DISTANCES FROM WELL ON LOT TO: Septic tank/lilt's',~tion on lot >100' Absorption field on lot >100` Public sewer main H/A Sewer/septic service line_..J~t/A~ )' 7~' / SEPARATION DISTANCES FROM SEPTIC/HOLDING TANK ON LOT TO: On adjacent lots >t00' On adjacent lots >t00' Public sewer manhole/cleanout N/A Holding tank Absorption field >5. Surface water >t00' Property line >5' Water service line >10` Building foundation >5. Water main >t0` Wells on adjacent lots >100' SEPARATION DISTANCE FROM ABSORPTION FIELD ON LOT TO: Water main >t0. Driveway, parking/vehicle storage >25' Property line >10' Water Sewice line >10' Curtain drain None Noted COMMENTS Building foundation >fO' Surface water >100' Wells on adjacent lots >t0~ in. G. ENGINEER'S CERTIRCATION 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 effect on this date. Engineer's Printed Name Michael E, Ander~on, P.F- Date 2/12/2003 HAA Fee $ ..~ 7-5-"o ~ ~ Da= of P ment / o Receipt Number '-~ / '~ '~...~"' (Rev. 12/00) Waiver Fee $ Date of Payment Receipt Number