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HERITAGE ESTATES TR B
Heritage Estates Tract B #050-991-84 CMunicipality of Anchorage Development Services Department 3; Building Safety Division - On -Site Water and Wastewater Program, 4700 Bragaw St. P.O. Box 196650 Anchorage, AK 995IM650 Page of www.ci.anchorage.ak.us (907) 343.7904 ON-SITE WASTEWATER DISPOSAL SYSTEM AND/OR WELL INSPECTION REPORT Permit Number: SW060124 PID Number: 050-991-84 Name: Kenneth M. Duff us Wastewater System: ❑o New ❑ Upgrade Afton 20441 Ptarmiqan Blvd., E.R., AK 99577 ABSORPTION FIELD Ph" 696-6111 Name« M aemooms 4 p Deap Trench o SJ,Wb Trenar ❑ Bed ❑ Moura o o1w LEGAL DESCRIPTION SOI aatrp TOM DWh hom Miparl qr d 0.6 Gpnme 14 Ft. Bbca Lr- Sr ,,m: Tract B Heritaqe Est. Depth b p bean hom aPW °rade' Gavr depN OaneaM P" 7 FI. 7 FI Ta ilnq: ari7a Sedan: FY Mbad aep,» or'0'^N grade. Gavel Lerglh s 1.1 Ft. 74 Ft. Well: New Upgrade °ravN'" n Nuh of lima Dutanaa l»M•n b»a. 2 Ft. 1 - - FI CMsaeaelgn IPmau. A B. CI: PUBLIC WATER TMM Drxh. cased b- Taw absvpton area Pp Mat•nM.. Ft. FI 1036 FT D3034/F810 Dnuer Dale DNw! BIMa Wray L•va. Milt~'. Dail. Ygtalbd. Ft. McClin Contractors 7/28/2006 Y»a. Punp Sr M Lapp Haps Aoo,• Gana. DPM Ft. Ft TANK SEPARATION DISTANCES 0 Septic ❑ Holding ❑ S.T.E.P. ❑ Other. To Septic Absorption Lift Holding lubliiYPrivale Jtl1a' r Fran Tank Field Station Tank Sewer Une Anchorage Tank 11250 cel. Wer 100'+ 100'+ NA NA 25'+ MalW,a Steel Nobler M compranw• 12 s-'—wrr 1001+ 100'+ NA NA LIFT STATION Ld Lo• 5'+ 10'+ NA NA t•. cal a +para Fo O"a" 5'+ 10'+ NA NA 'Poop an' Istel n. 'Poop de' brel M Nph aWW Mrm a , b ,, Cw Drag NA •50'+ NA NA Puny Max• a Madel Ebctro»l MP;dana PrrarmM eF R.mrxa 'None known. Tank insulated. BENCI-f MARK Lowlan era Dsaapton Door sill euro° ».alar,. 100 FL Inspections performed by: KND Engineering Dates: 1' 7/28/06 Engineer's stamp OFA It Development Services Department Approval •. F * pe H ` Conditional Approval Date:to .••' L•• pnnetn M. Reveieewod and approved by: ate: —3 -09`lJt; pROFESSI���'►+ nt�`1\FE 015—_�Sp SCALE: 1"- 30' I \ i AS -BUILT SYSTEM DETAILS / SITE PLAN Permit No. SW060124 HERITAGE ESTATES SUBDIVISION, TRACT B PID: 050-991-84 � 4/' HAROLD HOMESTEAD / 'Y U N SUBDIVIDED 50' ROW SWINC-TE CHART A-1.56.00 B-1.39.00 A-2-27.88 B-2.52.16 A-3.98.75 — x—X—X— '— BEDROOM GRAVEL SFR DRIVEWAY y O / A I AIT TMo \CO 2 TOE \ _ LOT 1 ABBREVIATIONS: BOH BOTTOM OF LE HERITAGE ESTATES - FO - CLUEU, FCO .FOUNDATION CLEANOUT SUBDIVISION MT MONITORING TUBE MH . MANHOLE VARIES OFALq�' 1 KUS ' CE 7 1 �o7 . 1\�O �Fess1D��� AIr i A SEPTIC — 74 SECTION SCALE: NTS PREPARED FOR: KEN OUFFUS 20441 PTARMIGAN BLVD. EAGLE RIVER. AK 99577 (907)696-6111 FIELD BOOKS CpwrEM eouNomr.. DR`: KI ar.Nwc NA CNEam KMD AS MT6. 0701/10 DAR` 11 06 A Dw. "M Cab: NW56 AMF E: " " 04-085 BOH (NO DRD" WAMR EN000NTEAED)Y S PACE 1 OF 1 ``Ft 4ha) SA 0 4k Hffl-E» UNSUBDIVIDED N89'51'06"W 147.91' w ^ N89'46'51"W 147.98' REC —x— x—x— — z 50, 45.9' - - - Q C I U ami di J W a OO w o 28.0' ANT 2'x17.5' v C`t CO6 O U 00 8.0' 5'x12' 00 Obi > 3 Z EXISTING o DECK U —, KC" o cD�W N BUILDING M TRACT B 3 3 a O 17i CO r� min Z 36.0' ' •1.• n P F - w 30.6' 00 / Co O / 110 io `J LG N U.' ¢ • • SEPTIC VENTS -~ • Z Z ro Q m nU w N89'55'39"W 147.92' (N89'46'51"W 147.98' REC) I LOT 1 / ANCIIORAGE RECORDMG DISTRICT ASBUILT OF: HERITAGE ESTATES SUBDIVISION TRACT B PLAT 84-268 \!N\ RC E R SURVEY CERT IFICATION:1, John L. Schuller, have OF A conducted a physical survey of this proper m shown on this ' L,y ,1 drawing and that the improvements situat thereon are within0-01/ cSP' ' S �, the property lin" and no encroachments exist other than noted. Gj; 49TH .-V ', �.... .r... ..... .. EXCLUSION NOTof my easIt i the owners responsibility o, re tro tions determine 1..............� ./ . ' !► _ ; t Ne existence oCanyeasements covrnants,orr"trictionswhich ....................... .....•.� Pons tY / i do not appear on the recorded eubdinston plat ^ i� U Under no circumstance should any information on this drawing n ' be used for construction of fent", snu JOHN L. SCHULLER: / or for establishing boundary lin". p �' ,� LS -10408 � WORK ORDER NUMBER: o.¢: x..u: J / • (} .GINE 19. 2007 1• -Jo' Ito, .07M %':I°.A trT% 6c'i 04-085 . ar. Deana .0 \�� ofessionot l� BG q _...:Su`go�l JLS NW56 0701/10 \\����� Nc saa.n.%ll' ON-SITE WASTEWATER DISPOSAL SYSTEM PERMIT Initial Date Issued: Jun 01, 2006 Expiration Date: Jun 01, 2007 Permit Number: SW060124 Parcel ID: 050-991.84 Legal Description: HERITAGE ESTATES TRACT B Design Engineer: 0070 KND ENGINEERING Site Address: NHN EAGLE RIVER LANE Owner Name: KENNETH M. DUFFUS Lot Size: 13170 SO. FT. Owner Address: 20441 PTARMIGAN BLVD Total Bedrooms: 4 Permit Bedrooms: 4 EAGLE RIVER. AK 99577 - 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. 5. The following special provisions. IMPORTANT: PLEASE REFER TO PLAT FOR SUBJECT PROPERTY FOR PLAT NOTES REGARDING STRUCTURAL SETBACK FROM ALL LOT LINES & DRIVE -WAY ACCESS. dk' gfcl-wily 7-1.1 2W,ZD^ie Atr?o'lej. rMov.>l0'is AckVi: S78" hppl.(, Received By. /� / �� Date: Issued By. ��/`� Date: 411, C %f��o7 9a•• MUNICIPALITY OF ANCHORAGE Development Services Department On -Site Water 6 Wastewater Program 4700 South Bragaw Street P.O. Box 196650, Anchorage, AK 99519-6650 (907) 343-7904\� ON-SITE WASTEWATER DISPOSAL SYSTEM PERMIT Initial Date Issued: Jun 01, 2006 Expiration Date: Jun 01, 2007 Permit Number: SW060124 Parcel ID: 050-991.84 Legal Description: HERITAGE ESTATES TRACT B Design Engineer: 0070 KND ENGINEERING Site Address: NHN EAGLE RIVER LANE Owner Name: KENNETH M. DUFFUS Lot Size: 13170 SO. FT. Owner Address: 20441 PTARMIGAN BLVD Total Bedrooms: 4 Permit Bedrooms: 4 EAGLE RIVER. AK 99577 - 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. 5. The following special provisions. IMPORTANT: PLEASE REFER TO PLAT FOR SUBJECT PROPERTY FOR PLAT NOTES REGARDING STRUCTURAL SETBACK FROM ALL LOT LINES & DRIVE -WAY ACCESS. dk' gfcl-wily 7-1.1 2W,ZD^ie Atr?o'lej. rMov.>l0'is AckVi: S78" hppl.(, Received By. /� / �� Date: Issued By. ��/`� Date: 411, C f I ZM171S 04f992 bB ! R!!'!sl i +hi{�• -I tl'' a �•'oL` 1l �� —I -- ,ot! °' kt it It i i�ii{1= {{� !�; ff j j � t ! alt- i...ttl �•, a }!i;nll; t; i `f` • 1� t I ft! I $��i.- ((,t,. t } Il�i�;l �r{'il 1t;! f � j � t - – ���}i •!l'i ± 3 � if' ilt�{?i (i] `ya�{E7 I{1 !]I\ It}{ t !A 1s�°'� 1 I �;e•t i!!!'!'• 1' li! 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Hg111n1YNH`-Illltl.l! IIf1:a11riH•S i 3){{ r 0 -�......a.wa.•n+uuucua+Lu•un.nail:uunw:ala:nw:al•:ezursu[.nauw f �.! ti• !+ t xxl t t:t 1 + •��'xt� I •':, . I`, I _ j{jf !'� I t �`t31s !r 'Q w• Y i •� a 1/.�I�?tY -ti ^! • 1•' --� I I t't?t�i c •' i =t'�.�:�s:1 d°f+t et t' 1 '1 � --� r— i{;�{'; tl t r; :-t �� �+ r«y:i l.. � C'•I 1 • �Ay` ^� ri �< t'i ' I I �... i.. 1 1 • + `{I / { 1 , .: --t- - - �L -�-.:- � 4ts � •; .__L.' i r" >.L�c. -- J L_ �_ � t I nr•a .)... ssws J 1 f 1 A ti 5 NO'S A:G6 :S 0.31S3+I34 ONYNOC }lilt I � f •• v' • � I � { t � O II} NJ Municipality of Anchorage • Development Services Department Building Safety Division On -Site Water and Wastewater Program 4700 Bragaw Street P.O. Box 196650 Anchorage, Alaska 99519-6650 www.muni.org/onsite (907)343-7904 ON-SITE SEWER/WELL PERMIT APPLICATION FOR A SINGLE FAMILY DWELLING Parcel I.D. 050-991-84 Property owner(s) Kenneth M. Duff us Day phone 696-6111 Mailing address 20441 Ptarmigan Blvd. Eagle River, AK Zip Code 99577 Site address NHN Eagle River Lane Zip Code Legal description (Sub'd., Block & Lot) Heritage Estates, Tract B Legal description (Township, Range & Section) Lot Size /3, I tFt. Number of Bedrooms 4 THIS APPLICATION IS FOR (® all that apply): THIS APPLICATION IS AN: Absorption Field ® Initial El Septic Tank ® Upgrade ❑ Holding Tank ❑ Renewal ❑ Privy ❑ Private Well ❑ Water Storage ❑ certify that the above information is correct. I further certify that this application is being made for a Single Family Dwelling and is in accordance with applicable Municipal Codes. KND Engineering, Inc. (Signature of property owner or,i(Aorized agent) Permit/Rush Fees: $460.00 Waiver Fees: Date of Payment: 5. 2,5- 0 L Date of Payment: Receipt Number. 91D 7 Qjt2 Receipt Number: (Rev. 11/05) 'a"CND ENGINEERING, INC 20441 PTARMIGAN BLVD. EAGLE RIVER, AK 99577-8736 696-6111 /FAX (907) 696-8111 May 24, 2006 Municipality of Anchorage Development Services Department On -Site Water & Wastewater Program P.O. Box 196650 Anchorage, AK 99519-6650 Subject: New sewer/well permit — Heritage Estates, Tract B Gentlemen: The owner has requested we proceed forward to obtain a septic permit on the subject lot. On May 23, 2005 one testhole was performed for the proposed system. The results of this test are attached. The general slope of this lot is from north to south at a grade of approximately 15-207o. We have designed our system utilizing the existing testhole that was excavated for the proposed 4 -bedroom house. Water was not encountered during the excavation or during monitoring. The lot will be served by public water with the key box and service line located in the northwestern part of the lot. We propose to install one 5' wide shallow trench with an AdvanTex Orenco Package System. This system will be manufactured by Anchorage Tank & Welding to meet Orenco Systems, Inc. latest design criteria and in accordance to MOA requirements. The Drainfield Design is based on the following: • 4 -Bedroom Design Flow: 600 gpd • Percolation Rate: 27 min/inch • Category III Allowable Application Rate: 4 gpd/sf • Designed Application Rate: 2 gpd/sf • Minimum Absorption Area: 150 sf • Effective Absorption Area: 600 sf (5'W x 30'L x 4'D) • Effective Depth Below Distribution Pipes: 4' RE: Heritage Estates Tract B hfay 2a, 2006 Page 2 of 2 There are no public or private wells within 200' of our proposed system location except as noted. There is no surface water within 100' of the proposed system and there are no known curtain drains within 50'. We do not expect there to be any adverse effect on adjacent lots by the development of this system. If you have any questions, please contact meat 696-6111/FAX 696-8111. Respectfully submitted, KHD Engineering, Inc. Kenneth M. D P.E. Attachments: On -Site Well and Sewer Application Wastewater Absorption System Details/Site Plan Soils Log/Percolation Test Maintenance Agreement Contractor Specs (WELL & WASTEWATER DISPOSAL SYSTEM HERITAGE ESTATES S/D, TRACT B I y" WELL HOUSE & WELL I I TSE R�o2 \ ES T NOTE: A REGISTERED LAND SURVEYOR SHALL FLAG PROPERTY UNE AND WELL RADII PRIOR TO CONSTRUCTION. Z Tt S89'46'S1'E 147. HI�ITAGE k� N89'46'S1'W 7.98' DETAILS/SITE PLA I I -�DVANTEX /TIMED OSAGE LOT 1 DESIGN DETAILS 4 BDRM x 150 GPD - 600 CPD APPLICATION RATE - 2 GPD/SF MIN. ABSORPTION AREA 600 GPD/(2 GPD/SF)-300 SF (300 SF/5'W)•0.50 (RF) 15' LONG TRENCH USE 1 TRENCH 5Wx30'Lx4.0'D NO PUBLIC WELLS WITHIN 200' OF TOTAL DEPTH OF EXCAVATION 6' PROPOSED SYSTEM. TOTAL EFFECTIVE DEPTH IS 4.0' NO PRIVATE WELLS WITHIN 200' of ORENCO PACKAGE SYSTEM PROPOSED SYSTEM EXCEPT AS NOTED. 1. INSTALL 1250 GAL SEPTIC TANK W/ AX -20 POD INTEGRATED ADVANTEX NO SEPTIC SYSTEMS WITHIN 200' OF SYSTEM— OR TANK WILL BE SIZED PER ANCHORAGE TANK FOR A 6 BDRM PROPOSED WELL EXCEPT AS NOTED. RESIDENCE. 2. INSULATE TANK, EXCEPT BELOW ADVANTEX PADS TO ALLOW HEAT TRANS 3. NO AIR LINE REQUIRED. OF ALq �11 pf KENN HW. U 'US CE- 1 y� of O /'fib' FESSIONpV AW PREPARED FOR, KEN DUFFUS 20441 PTARMIGAN BLVD. EAGLE RIVER, AK 99577 (907)696-6111 FIELD BOOKS Bamoenr. _ SiAewc — Aseuti: SCHUL oc. ret: Al r AI AoC DomMm: DRAM: VBG atom: KMD DATE 5/24/0 mo: NW56 'DR R" 04-085 S'\VtLL a SLVIIC - reetl by 10941W mte9e tetetee IN 01-00°\Uw9\Oe--0975 Dn-4t*dw9 Scales 1'= 50' PAGE I OF 3 lZM ENGINEERING. INC. 20441 PTARMIGAN BLVD. EAGLE RIVER, AK 99577-8736 (907)696-6111/FAX (907)698-8111 r .RIDEnSineering.00m/kndeo&4ek.net WATER AND WASTEWATER PLAN HERITAGE ESTATES S/D, TRACT B WELL HOUSE & WELL wF44 '00 0, T/E R,q0/us ES T S89e46'51 "E Z lz HERITAGE � RR 54.9' DRI 0(P) b Xi L co 50' Aor wQ� OF ALq 1 !*. gTx ..*/ KENNETH M FFUS jof `1�'. CE I �, % ESSIO'O I �D -P�DVANTEi. yv/TIMED DOSAGE '9-i_ N89e46'51 "W 147.98' LOT 1 PREPARED FOR: KEN DUFFUS 20441 PTARMIGAN BLVD. EAGLE RIVER, AK 99577 (907)696-6111 FIELD BOOKS G ft7ID: OMNOMM. DRAM: STMiNG: ClEMCD: Kk As"'"tT' SCMULLER DA1° 5/ DWG- FILE: CRO: KIV AGAD ME 04085.DWC I" ": 04085 @ SEPTIC — Filed BY Leaal\Heritaae Estates TS On—site.dwa 0 C4 SYSTEM PLAN SCALE: 1"=30' PAGE 2 OF 3 1011 ID ENGINEERING, INC. 20441 PTARMIGAN BLVD. EAGLE RIVER. AK 99577-8798 (907)698-6111/PAX (907)696-8111 m.CNDEneln.rtng.cem/kndeod6ek.net WELL & WASTEWATER SYSTEM SITE PLAN HERITAGE ESTATES SUBDIVION Tr. B Lot 1 AdvanTex" Treatment System AX 20 Series - Mode lb NDWATX-AX20-IB NOTE: REFER TO MANUFACTURER'S INSTRUCTIONS FOR SITE SPECIFIC CONFIGURATION. Inlet Riser/Ud 2' Dia. Vent - Inlet AdvanTex .t I Vold! Pump Packs It Side Yew OF ALq �1 � ,t g M * �� ' KENNETH U. D F A� CE -7C 1 `� �.ESs;I)NpV4=.. Top Yew 1/8'/fL) PREPARED FOR, KEN DUFFUS 20441 PTARMIGAN BLVD. EAGLE RIVER, AK 99577 (907)696-6111 FIELD BOOKS eou,rowr. SiN°"f. 4'8"LT: SCMUL M FLE •c.° rxc:.....e. cwwh° °R""": VBG CHECKED: K M D DATE 5/24 NW56 04085 End Yew Scaler NTS M611LU ENGINEERING, INC. 20441 PTARMIGAN BLVD. EAGLE RIVER, AK 99577-8736 (907)868-3791/FAX (907)868-3793 If N D ENGINEERING, INC. 20441 PTARMIGAN BLVD. EAGLE RIVER, AK 99577-8736 SOILS PERCOLATION TEST Performed for: KND Investments, Ltd. Date Performed: 05/23/05 Project: Heritage Park, Tract B TEST HOLE 9 05-1 Depth (Feet) SEE ATTACHED SITE PLAN 1- is Org/OL FOR HOLE LOCATION 2- 3- 4- 5- 6- 7- 8- 9- 10- 11- 12- 13- 14- 15- 16- 17- is- 19- 20 - GM — med dense brown, damp w/cobbles & boulders to 3' B.O.H. HOLE PRESOAKED PRIOR TO TEST Was Ground water encountered? NO what depth? NA Depth to water after monitoring? NO Date? 5/30/05&10/10/05 Reading Date Gross Time Net Time Depth to Water Net Drop 1 5/24/05 1:00 6" - 2 1:30 30 min 412/16" 14/16" 3 1:31 6" - 4 2:01 30 min 414/16" 12/16" 5 2:02 6" - 6 2:32 30 min 414/16" 12/16" Water Added Percolation Rate 27 (min/ in) Perc }tole Diameter 6" Test Run Between 4 feet and _5 feet I, Kenneth hl. Duffus, certify that this test was performed in accordance with all State and Municipal guidelines in effect on this date. IT Lv\\� INT D ENGINEERING, INC. 20441 PTARMIGAN BLVD. EAGLE RIVER, AK 99577-8736 696-6111 / FAX (907) 696-8111 ON-SITE WASTEWATER DISPOSAL SYSTEM CONSTRUCTION PRACTICES AND MATERIAL SPECIFICATIONS LEGAL DESCRIPTION: HERITAGE ESTATES, TRACT B GENERAL: 1. The scope of this project includes the installation of a septic tank and/or drainfield to serve a single family residence on the referenced property as delineated on the attached Municipality of Anchorage (MOA) permit and site plan. 2. Construction shall be in accordance with the approved site plan and design drawings; MOA permit with any special provisions or conditions, and all applicable State and Municipal Wastewater Disposal Regulations. 3. KND Engineering Inc (KND) assumes no responsibility of the accuracy of the as -built survey provided by the owner or owner's representative. 4. The owner or contractor is responsible to notify the engineer of any discrepancies noted on the design plans or drawings prior to commencing work. These discrepancies could be, but not limited to, possible encroachments, surface water, varying soils, unplatted easements, types or use of dwellings on or adjacent to property, nearby public wells, etc. 5. The contractor shall be responsible for locating any necessary underground utilities, easements, property lines and surface water. The owner and/or contractor shall ensure, if deemed appropriate, that a registered land surveyor prior to construction flags all setbacks. 6. The contractor shall be responsible for verifying all pertinent separation distances and component layout. 7. Unless specifically agreed otherwise, the property owner shall be responsible for final grading areas subsequently depressed from soil settling. On all leachfield mound systems, the property owner shall be responsible for ensuring a satisfactory vegetation growth over the mounded area. 8. The MOA Development Services Department On -Site Water & Wastewater Program must certify contractors installing wastewater disposal systems. Owners installing their own systems must also receive prior approval from said MOA Department. SEPTIC TANK / HOLDING TANK / LIFT STATION INSTALLATION: 1. A septic tank is to be constructed by a certified septic tank manufacturer. Construction shall include two 4" cleanouts for pumping access. 2. The septic tank shall be sufficiently bedded with proper material and compacting to prevent damaging, settling or shifting of the tank. 3. All standpipes on the septic tank shall extend a minimum of 12 inches above the final grade. 4. Septic tanks installed with less than 4 foot of cover shall be insulated. The contractor will ensure that the fill over the tank does not exceed the burial depth rating. 5. 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 feet from the tank. The second cleanout, in line, shall be to clean toward the septic tank. 6. Final grading over the septic tank shall be such that a positive slope exists away from the septic tank. Page 1 of 3 Reference: Heritage Estates, Tract b Date: 05/24/06 Page: 2 of 3 7. All H.D.P.E. tanks shall have a vertical length of 4 -inch perforated drainpipe besides the tank extending to the bottom of the tank to above grade to monitor ground water. 8. All tanks shall be anchored when there is not enough adequate soil cover to resist buoyancy forces in high -groundwater areas. 9. All holding tanks and lift stations shall have an audible and visual alarm inside the residence. 10. All lift stations shall be wired in compliance with the Uniform Electrical Code and all MOA guidelines. 11. The contractor shall remove the old tank, or abandon it in compliance with the Uniform Plumbing Code. The contractor is solely responsible for the abandonment procedure. ABSORPTION TRENCII/DRAINFIELD INSTALLATION: 1. 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 excavaction become smeared, they must be raked or scratched (roughed -up) before gravel (sewer rock) placement. 2. Once the sewer rock is installed, the distribution pipe is installed level with the perforations facing downward. Gravel is then to be placed over the distribution pipe to provide a minimum of 2 inches of cover over the pipe. 3. 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. 4. Monitoring tubes shall be 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. 5. Backfill over the final gravel layer must not be less than twenty-four 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. 6. All advanced technology waste water disposal systems (Advantex, Biocycle, Intermittent Dosing Sand Filter, etc...) shall be constructed, installed, maintained and monitored per manufacturers specifications and MOA requirements. MINIMUM MATERIAL SPECIFICATIONS: 1. A MOA approved septic tank manufacturer must construct any septic tank proposed for installation. 2. The following pipe materials are MOA approved for use in septic system installations: Type of Pike Perforate EQU Cast Iron Yes Yes ASTM D3034 (PVC) Yes Yes ASTM F810 (HDPE) Yes No ASTM D2662 (ABS) Yes Yes 3. Insulation shall be at least 2" thick extruded direct burial polystyrene (Dow Chemical Company Styrofoam HI or equal). 4. Septic tank inlets and outlets shall be fitted with watertight couplings (Caulder, Fernco, or equal). 5. A permeable nontoxic silt barrier (Typar 3101, Mirafi 140N, or equal) must be installed between the final leachfield gravel layer and the native soil backfill. 6. All leachfield gravel (sewer rock) shall be 0.5"-2.5" screened gravel with less than 37o passing the #200 sieve. If deemed necessary, a sieve analysis should be performed. 7. When sand is being used as a filter material, its gradation specification must conform to current MOA or DEC requirements. Reference: Heritage Estates, Tract b Date: 05/24/06 Page: 3 of 3 INSPECTIONS: Typically there will be three (3) inspections required during the installation of the wastewater disposal system. These inspections will occur as follows: 1. 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. 2. The second inspection must be conducted after the placement of the sewer rock distribution lines, standpipes, and cleanouts, but before the placement of the silt barrier, insulation, or any other backfill. 3. The final inspection is to occur upon final 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. 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 contractor's activities. The owner shall contract with the contractor to perform the work outlined in these specifications and attached plans and in accordance with the attached MOA permit. All materials, components, and construction practices shall comply with the MCA's and the State of Alaska's latest ordinances, regulations, or policies regarding wells and septic systems. The failure of the inspecting engineer to notice a material or construction non-compliance does not relieve the contractor of his/her responsibility to correct such deficiency. There will be no contractual arrangement existing between the contractor and KND Engineering, Inc. KND shall be the owner's representative and will inspect the work as stated above to document the contractor's activities. Final acceptance of the contractor's work rests with the owner and the MOA. KND 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. KND's inspecting engineer will not be responsible for the construction means, methods, and techniques, sequence, procedures or the safety precautions incident to this project. BY PROCEEDING FORWARD WITH THE INSTALLATION OF THE WATER AND/OR WASTEWATER SYSTEM (S), THE PROPERTY OWNER, CONTRACTOR, AND WELL DRILLER ACKNOWLEDGES HAVING READ AND ACCEPTED THESE SPECIFICATIONS. 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. 050-991-84 Expiration Date: 2 `/ Legal description HERITAGE ESTATES TR B Site address 10791 Eagle River Lane Eagle River AK Current property owner(s) Jeffery and Terri Barrus X The On-site system(s) is/are approved for 4 bedrooms Conditional approval for bedrooms, with the following stipulations: Comments or advisories: E Original Certificate Date: Azq2 3 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 Arsenic Advisory Other COSA Approval_June 2022 MUMUPAUTY OF ANCHORAGE Development Services Department � Phone: 907-343-7904 On -Site Water & Wastewater Section Fax: 907-343-7997 Certificate of On -Site Systems Approval Application 1. GENERAL INFORMATION Parcell.D. 050-991-84 Complete legal description Heritage Estates Track B Location (site address) 10791 Eagle River Lane. Eagle River, AK Current property owner(s) Jeffery & Terri Barrus 2. ON-SITE SYSTEMS SIZED FOR 4 BEDROOMS Day phone 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 17 - See advisory if steel older than 20 years 6. ABSORPTION FIELD: ❑ AWWTS ❑ Bed ® Deep Trench ❑ Wide Trench ❑ Seepage Pit Waiver request for: Distance: Expedited review requested: ❑ 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 $ J� Jct Date of Payment COSA# Waiver Fee $ Date of Payment Waiver # COSA Application—June 2022 COSA Checklist Legal Description: Heritage Estates Track B Parcel ID: 050-991-84 If more than 1 well and/or septic system on lot, provide separate checklist. Structure served by this system DATA ❑ Well log i d with Onsite (or attached) Date drilled al depth ft Cased to ft ❑ Sanitary seal is functioning correctly ❑ Wires are properly protected Casing height (above ground) in Date of flow test for COSA Static water level at beginning of test ft. Comments B. TANK DATA Measured operating fluid level in septic tank 49" Date of pumping ❑ Required maintenance completed, if AWWTS Comments: D. ABSORPTION FIELD DATA Which system tested (date installed) 7/29/06 0 ALL standpipes present per record drawing Total measured depth from grade 14.75 ft (max) Measured depth to pipe invert from grade 7.7 ft (min) ❑ N/A — pressurized field. ❑ Per record drawings, field is insulated. ❑✓ Monitor tubes 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) If yes, enter date Comments/Deficiencies COSA Checklist June 2022 Well production at time of test gpm Water storage tank volume gallons Well disinfected for coliform test? ❑ Yes ❑ Nc ❑ Coliform bacteria is Negative itrate mg/L ❑Nitrate less than MRL (ND) Arsenic ug/L ❑ Arsenic less than MRL (ND) Collected by Date FT STATION ❑ Require nti Age of lift station _ Lift station material Comments: ance completed wears Adequacy test date 2/24/23 Results 0 Pass Fluid depth prior to test 21 in Water added 600 gal New fluid depth 21 in Elapsed time 10 min Final fluid depth 21 in Absorption rate 600+ gpd FIELD STATUS — POST RECOVERY Effective depth (per record drawings) 84 in Effective depth used 21 in Effective depth remaining 63 in 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' ✓❑ Yes if No Community Sewer Manhole/Cleanout > 100' ❑ Yes if No ft ❑ Yes if No ft Neighboring Tank > 100' ❑ Yes if No ft Private Sewer/Septic Line > 25' ❑ Yes if No ft Absorption Field on Lot > 100' ❑ Yes if No ft Holding Tank > 100' ❑ Yes if No ft Neighboring Absorption Fields > 100' if No ft Animal Containment > 50' ❑ Yes if No ft ❑ Yes if No ft ft If tank or field is under driveway comment below 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 ft Tank to Property Line > 5'❑ Yes if No ft Wells on Adjacent Lots: Field to Property Line > 10' ❑J Yes if No ft Private Wells > 100'✓❑ Yes if No ft Water Main > 10' ✓0 Yes if No ft Community Wells > 200' © Yes if No ft Water Service Line > 10' ✓❑ Yes if No ft If tank or field is under driveway comment below F. ENGINEER'S COMMENTS 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 Arcterra Consulting Phone (907)-696-6111 Engineer's Printed Name Kenneth Duffus Date Engineer's Comments: This investigation was completed in compliance with ADEC and MOA regulations. 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 surface, changes inland use, local soil characteristics, groundwater levels that may fluctuate during the year and the water usage of the family being served by the system. 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, ArcTerra can not give any estimate of how long a system will function satisfactory for current or future occupants or can ArcTerra guarantee that no unseen encroachments, deficiencies or discrepancies exist. COSA Checklist June 2022