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HomeMy WebLinkAboutCONTOUR ACRES #4 BLK 4 LT 1Contour Acres #4 Block 4 Lot 1 #017-381-32 Municipality of Anchorage ••S� r1_ ,. :., Development Services Department •fi'� Building Safety Division � On -Site Water and Wastewater Program, 4700 Elmore Road P.O. Box 196850 Anchorage, AK 99507 Page of www cI anchorage.ak.us (907) 343-7904 ON-SITE WASTEWATER DISPOSAL SYSTEM AND/OR WELL INSPECTION REPORT Permit Number. SW080241 PID Number. 01748142 Nene Northern Home Builders Wastewater System: ❑ New ❑ Upgrade Marts 5725 Yukon Charlie Loop Anchorage, AK 99502 ABSORPTION FIELD Prlare 830-2052 N,npr r Beams 4 17 ow Trend" 0 Simile* Trench 0 Bed 0 Mand 0 Oma LEGAL DESCRIPTION Sal Rang .8 GPotFI' Taal Cepa from onpne grade 14-14.5 F, Elam4 Lot 1 SW6NFNn Contour Acres No.4 Depth nanginalpre bosom tom anginal 7-7,5 F, Creel detonere W p 7 Ft Townrvp Range Seaton FN Mded above apnr grade 3-4 Fr. Gravel Lancia 55 Fl. Well: 17 New ■ Upgrade Gravel oat 3 Ft. a wunce between Mra trumpet area 1 - Ft CMwtcwgn (Private. A B. C) Private Tool Geon 386 F, Caved M 147 FL Tote aowpbon ane 770 rel Pp Maurte ASTM 03034 PVC Dow Alpine Drilling Gee DNIad 11/07/08 State Water Level 138 Ft Inwalr Sanders 8 Sanders pie IncMaed 11/06/08 Y,M 2 GPM Pump Seta Ft. Canna Pe t Bove Grand 2 FL TANK SEPARATION DISTANCES 0 Septic ❑ Holding ■ S.T.E.P. ❑ Other. To From Septic Tank Absorption Field LM Station Holding Tank uNicfPmnte Sewer Line Mantlitl1er Anchorage Tank Capr+I1 1,250 Gr Paid >100' >100' N/A N/A >25' Mani Steel Number a Compartments Two (2) Snot war >100' >100' N/A N/A LIFT STATION Lot Lee >5' >10' N/A N/A 53e Gel Manvac✓r Fandabon >5' >10' N/A N/A 'pump on Wag at n Pump ar level at a high war Yam a n Chun Gran None Noted Pap Mae 4 Mesal Seance Inapenn n perfumed by R`markt BENCH MARK L.cubpn ..d Descryt n. Lower Level Door Threshold NE Comer. Assume Eevwaort 100.0 FL Inspections performed by: A. Harala Dates: 1g 11/06/08 a.•�'yCa„`q,�� 7.,,,,,>:' , •• ,' i �•b•� 49� •..� * �0 04.0 *00 000e o0 oo Orreolif 2•l•� 0te 2nd 11/06/08 Development Services Department Approval Conditional Approval Date: i r ' MICHAEL E. ANDERSON :Wel a” �j'�sa CE -4381 •i••*w +,Ili►j��;s��:e�*- Reviewed and approved by: l'''• Date: %-/g-°CI pad pads) 4 L»29.84' R-189.35' E e C4 fM] M SI VAQUERO ROAD F-REATA DRIVE 0 n /5 89'58'45T 190.85' 52 Four Bedroom Home LEGEND rCo - foundation Clean OA CO — Cr.. out u — Sands Tubs CV — eeae -,t 114 — res. Moe SITE PLAN . NELL 3 IM} hap?5�.45 SCALE 1' = 60' `J . 44 M1 u t • N 00'01'13'E 528.49' CONTOUR ACRES FOURTH ADDITION LOT 1, BLOCK 4 2.47 ACRES IV 49th •yX _ ) _ t lei -.P MICHAEL E. ANDERSEN' �•� •-•; No. CE -4391 } Permit Number. SW060385 3 Municipality of Anchorage DEVEOPMENT SERVICES DEPARTMENT 4700 Elmore Road Anchorage, AK. 99519-6655 - 343-7904 On -Site Wastewater Disposal System or Well Inspection Report 1 FnYW Grade 3 h 98.1 H UV 95.6 91.37 0, ,250 Gallon Septic Tank 1.2 Page 3 of 3 PID No. 015-221-47 96.5 92.8 f U Eneb% Grua Geotextile Fabric 85.8 Drainfield Rock 78.8 -F"-- 85.8 72.0 No Groundwater 55' (Trench Length) PROFILE AS -BUILT No Scale • 49th • • ? MICHAEL E. ANDERSON •11a No. CE -43131 !tip • 14 ,,,'�; ..;.•• MUNICIPALITY OF ANCHORAGE DEVELOPMENT SERVICES DEPARTMENT 4700 BRAGAW STREET ANCHORAGE, AK 99519-6650 SOILS LOG - PERCOLATION TEST LEGAL DESCRIPTION: LOT I, BLOCK 4, CONTOUR ACRES NO. 4 PERFORMED FOR: NORTHERN HOME BUILDERS DATE: 11/06/2008 PROJECT No • PARCEL ID#: TECHNICIAN: A. HARALA DEPTH (fm) 11 IIIc OB/OG 2 — 3 —' 4 — 5 — . 6 — d. • 7 — a 8 — 9 —44 : 4 10- 11 12- 13- 14—. 15 16- 17- 18- 19- 20 4 TEST HOLE 3 SILTY SAND SM/SP BOH © 15' WAS GROUND WATER ENCOUNTERED? IF YES @ WHAT DEPTH? DEPTH OF WATER AFTER MONITORING: SLOPE No NONE DATE OF MONITORING: -!1'8'08 :� • NICNAL ANDERSON ��EL ".NO. No. cE-4381 / , • 4.4 liZTESSi Professional Engineer Stamp: • SITE PLAN SEE SITE PLAN t DATE READING GROSS TIME (MINUTES) NET TIME (MINUTES) DEPTH To WATER (INCHES) NET DROP (INCHES) TEST HOLE PRESOAKED PRIOR TO TESTING: 11/6 1 11:18 1.38" 2 11:48 30 3.56" 2.18" 3 11:50 1.50" 4 12:20 30 3.62" 2.12" 5 12:25 1.25" 6 12:55 30 3.37" 2.12" PERCOLATION RATE: 14 (MIN/INCI) PERC. HOLE DIA. 6 t (INCITES) TEST RUN BETWEEN: 6.0 FT. and 7.0 FT. COMMENTS' TEST HOLE PRE SOAKED PRIOR TO TEST. TEST PERFORMED BY ANDERSON ENGINEERING. 1, MICHAEL E. ANDERSON CERTIFY THAT THIS WAS PERFORMED IN ACCORDANCE WITH ALL STATE AND MUNICIPLE GUIDELINES IN EFFECT ON THIS DATE: 9/9/09 �:▪ "ROM :Alpine Drilling e FAX NO. :907 345 0202 Sep.04 2009 04:41PM P1 ALPINE DRILLING & ENTERPRISES Permit Number: #SW080241 Date of Issue: 11-03-08 Parcel Identification Number: 017-381-32 Date Started: 11-03-08 Date Completed: 11-07-08 Is well located at approved permit location? ® Yes 0 No Legal Description: Contour Acres #4 Blk 4 Lot 1 Property Owner Name & Address: Northam Home Builders 5725 Yukon Charlie Loop Anchora.e, Alas Borehole Data: Depth (ft) Soil Type, Thickness 8 Water Strata From To stick-up 0 2 silt 2 5 gravelly silt 5 37 sandy silt 37 81 silt 81 123 sandy silt 123 131 gravelly silt 131 145 bedrock 145 386 Attention: The well driller shall provide a well log to the property owner within 30 days of completion and the property owner or the well driller shall provide a well log to the Development Services Department within 60 days of completion. Method of Drilling 0 air rotary ❑ cable tool Casing type: steel Wall Thickness: ,025 inches Diameter: 6 inches Depth: 147 feet Liner Type: Diameter: inches Depth: feet Casing stickup above ground: 2 feet Static water level (from ground level): 138 feet Pumping level: 386 feet after 2 hours pumping 2 gpm Recovery Rate: 2 gpm Method of Testing: sir lift Well Intake Opening Type: ❑ Open End 0 Open Hole ❑ Screened Start feet Stopped feet ❑ Perforations Start feet Stopped feet Grout Type: bentonite granules Volume: Zbrs Depth: Startg feet Stopped ? feet Pump: Intake Depth feet Pump size hp Brand Name Well Disinfected Upon Completion? /t Yes ❑ No Method of Disinfection: chlorine tablets Comments: Well Driller: Alpine Drilling & Enterprises P.O. Box 110496 Anchorage, AK 99511-0496 Attention: The well driller shall provide a well log to the property owner within 30 days of completion and the property owner or the well driller shall provide a well log to the Development Services Department within 60 days of completion. Mark Begich Mayor Development Services Department Building Safety Division On -Site Water & Wastewater Program 4700 Elmore Street P.O. Box 196650 Anchorage, AK 99519-6650 www. mum .orq/onsite (907) 343-7904 Pump Installation Log Date of Issue: _ Replacement Only: YES NO Well Drilling Permit Number: SW Parcel Identification Number: Legal Description Lot 1, Block 4, Contour Acres #4 Property Owner Name & Address: Northern Nome Builders Pump Installation Date: 4/12/2009 Pump Intake Depth Below Top of Well Casing: 368 feet Pump Manufacturer's Name: Grundjos Pump Model: 10515 Pump Size 1.5 hp Pitless Adapter Burial Depth: 12 feet Pitless Adapter Manufacturer's Name: Maas Pitless Adapter Installer: Aarow Pump & Well Service Well Disinfected Upon Completion? ® Yes ❑ No Method of Disinfection: Recirc Comments: Pump Installer Name: Aarow Pump & Well Service LLC PO Box 110496,Anchorage, AK 99511 (907) 346- 9355 Attention: The pump installer shall provide a pump installation log to the DSD within 30 days of pump installation. MUNICIPALITY OF ANCHORAGE Development Services Department On -Site Water 8 Wastewater Program 4700 South Bragaw Street P.O. Box 196650, Anchorage, AK 99519-6650 (907) 343-7904 ON-SITE WASTEWATER DISPOSAL SYSTEM / WATER SUPPLY PERMIT Initial Permit Number: SW080241 Legal Description: CONTOUR ACRES #4 BLOCK 4 LOT 1 Design Engineer: 0014 ANDERSON ENGINEERING Owner Name: NORTHERN HOME BUILDERS Owner Address: 5725 YUKON CHARLIE LOOP ANCHORAGE , AK 99502 - Date Issued: Nov 03, 2008 Expiration Date: Nov 03, 2009 Parcel ID: 017-381-32 Site Address: 5116 VAQUERO ROAD Lot Size: 107593 SQ. FT. Total Bedrooms: 4 Permit Bedrooms: 4 This permit is for the construction of: ❑✓ Disposal Field Q Septic Tank D Holding Tank 0 Privy I Private Well 0 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. 11- -cg Received By: Issued 6y. in 01/4.'1,1 k l.tt ny Notice- /° e/0", r o l MT5T Ho (c t4 it, l/( L 4.lit-it 11wte_ S —t'r .�✓L 'f c w//ei-nS 4 //e t- co_tel y cw va- / G,.( I-- ft ew T.fi(i>`z w;// 6e 64,5'{71-e— TA2 Date. // / -eig W tTGftt! Date: Parcel I.D. 017-381-32 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 Property owner(s) Northem Home Builders Mailing address 5725 Yukon Charlie Loop Anchorage, AK Site address 5116 Vaquero Road Anchorage, AK Day phone 830.2052 Zip Code 99502 Zip Code 99516 Legal description (Sub'd., Block & Lot) Lot 1, Block 4, Contour Acres Subdivision Fourth Addition Legal description (Township, Range & Section) Lot Size 107,593 Sq. Ft. Number of Bedrooms Four (4) THIS APPLICATION IS FOR (0 all that apply): THIS APPLICATION IS AN: Absorption Field Q Initial Septic Tank Q Upgrade Holding Tank 0 Renewal Privy ❑ Private Well Q Water Storage 0 I 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. „14+�. GUs..42/1 (Signature of property owner or authorized agent) Permit/Rush Fees: Date of Payment: Receipt Number. (Rev. 11/05) 0 (O Waiver Fees: Date of Payment: 2- Receipt Number. ANDERSON ENGINEERING P.O. BOX 240773 ANCHORAGE, AK 99524 522-7773 677-7766 (FAX) December 14, 2006 Municipality of Anchorage Development Services Department On -Site Water and Wastewater Program 4700 South Bragaw Street Anchorage, AK 99519-6650 Subject: Lot 1, Block 4, Contour Acres Subdivision Addition No. 4 Septic System Design and Permit Application Impacts to Adjacent Properties Dear Onsite Services Engineer: The owner of Lot 1, Block 4, Contour Acres Subdivision No. 4 intends to construct a new four-bedroom home on the lot. We are therefore requesting a permit be issued for the construction of a new well and septic system to accommodate the home. The attached Site Plan and backup documentation identify the location and configuration of the proposed well and septic system along with the alternate site. Also identified on the plans are the existing wells and septic systems on surrounding lots. No conflicts exist between the proposed well and septic system and wells or septic systems on adjacent Tots. Drainage arrows are shown on the site plan showing the grade and direction of flow on the lot. The drainage pattern will not be changed as a result of this project. The test holes placed on the lot in the area of the absorption trench and altemate site indicate silty sand with varying amounts of silt (SM/ML). The percolation rate of the soil was determined to be between 6 and 15 minutes per inch. The soil was much Tess dense at a depth of 7' below the surface. No groundwater was found during the placement of the test hole and none was noted during the monitoring period. An application rate of .8 gallons per day per square foot was used in the design of the absorption system. We are proposing to place a new 1,250 -gallon septic tank and a 54' long by 3' wide by 7' effective depth absorption trench to treat and dispose of the effluent generated in the house. The elevation of the distribution line in the absorption trench will be 7' below the surface to take advantage of the less dense material and the total depth will be 14'. A minimum of 3' of fill or 2" of insulation and 2' of fill will be placed over the absorption trench and 4' over the septic tank. The ground surface on the lot in the area of the septic system slopes to the southwest at shallow grades. The new trench will be constructed parallel with the slope as much Lot 1, Block 4, Contour Acres No. 4 October 30, 2008 Page Two as possible in conformance with Municipal requirements. The new septic system will be constructed a minimum of 100' from all wells and any surface water and 10' the proposed and existing water services in the area. If the system is constructed in accordance with our design the following statements apply: 1. 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. 2. 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. 3. The system, if constructed as designed, will have no adverse impact on reserve space, either surface or subsurface, on any Tots located in the area. 4. 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, c Michael E. Anderson, P.E. Attachments co ra 1 W ni Existing WWI • VAQUERO ROAD 1 1 Sae l`.. 2:T. co •_ 1 [slating Well • 1 6A TRACT A-1 Existing 8 • ��» 49th • , II OP ini •AREA MAP I ! f-- �'", • M•IICHAEL E. ANDERSON. t f •• •�j'•./b So O4tiNo. �•''•� SCALE 1' = 100' itt ............. ♦♦ ! �J ter/ N891STOOt 433.10 f �/. 90' La29.64' 8.189.35' VAQUERO ROAD HREATA DRIVE 0 S 89'58'45t 190.85' 100' Proposed Well Four Bedroom Home 4.> Altemote Sts 60' SITE PLAN SCALE 1' = 60' 2st. 73520 CONTOUR ACRES FOURTH ADDITION LOT 1, BLOCK 4 2.47 ACRES 70' • 49t.. ...`s •� • • ; MICHAEL E. ANDERSON:: L` w • • ., No. CE -4381 f ., ...*•.(1.7-1 071c, LOT 1, BLOCK 4, CONTOUR ACRES FOURTH ADDITION DESIGN FACTORS: Four Bedroom Home Perc. Rate: 6-15 Min./Inch Application Rate: .8 GPD/SF SYSTEM REQUIREMENTS: Deep Trench System 1,250 Gallon Septic Tank 7' Drainfield Rock 4 Bedrooms X 150 GPD/.8 GPD/SF (Application Rate) = 750 SF Absorption Area 750 SF/14 SF/LF = 53.6 LF Trench Length THEREFORE: Construct a 54' Long x 3' Wide x 7' Effective Depth Absorption Trench at the Location Shown. Flow Line Elevation in Trench to be 7' Below Original Ground Surface. Total Depth to be 14' Below Existing Ground. Provide 4' Cover Over Septic Tank and 3' Cover Over Absorption Trench. Maintain 100' Separation from Wells in the Area. 6'6" 7'0" Natural Backfill Geotextile Fabric Q 4" Perforated PVC (Holes Down) Drainfield Rock 3' TYPICAL DEEP TRENCH SECTION%%%%% (NO SCALE) ..�p(E............ . %%%�i •i. NOTE: Grade Area Over Trench to Drain Away. Minimum 6' Separation From Bedrock. Minimum 4' Separation From Groundwater. Minimum 100' Separation From Wells in the Area. Minimum 100' Separation From Surface Water or Streams: f 49th gg%\ MICNAEL E. ANDERSON 'it No. CE+381 J14, r�i ...CO Municipality of Anchorage Development Services Department Bulldog Safety Divisum On -Site Water and Wastewater Program 4700 Elmore Road P.O. Bar 198850 Anchorage, AK 99537 www.cf anchorage irk us (907) 343-7904 Soils Log - Percolation Test PerfmnedFor Northern Home Builders Legal 6af7 Contour Acres Subd. No.4, Lot 1, BLK 4 4 - 7- 8- 9- 10- 11- 12- 13- 15- 16- 17- 18- 19- 20 - Depth (Feet) COMMENTS pJcsp 1,4e) s WAS GROUND WATER ' ENCOUNTERED? 1NL IF YES. AT WHAT DEPTH? Depth to Water Atter Nr� - _ Monitoring? '3&3/YYILIG-17�-- Dec /.0 fG rsy%; �� a`eVIT'it}SC �CCy.. rat*: 49111A 44 a r>A,,:.AOCHAEL E. ANDERSON •,4i CE -4381 'e Date Performed: t44. st • Rearing Date • Gross Tine Net Tian - Depth to Water Net Drop Ir l ns 11; 5 . R.1,511 / Ilii lc 10.?8 2.25 171y� Sya • 18 :IS - S.:' 115118 -jr (e.,5¢- 138 -----------.� -,a PERCOLATION RATE Jy (maaas&ncN PENC TEST RUNBETWEEN •- (r FT AND --V/��7r FT Nrz •taJtfr v./e resat—. PERFORMED BY: PERFORMED IN ACCORDAN E WITH ALL STATE AND MUNICIPAL GUIDELINES IN EFFECT ON THIS DATE. CERTIFY THAT THIS TEST WAS DATE Municipality of Anchorage Development Services Department Building Safely Dvisim On -Ste Water and Wastewater Program 4700 Elmore Road P.O. Bac 196050 Anchorage. AK 99507 www oi.anchaaae.ak ve (907) 343-7904 Soils Log - Percolation Test Northern Home Builders Contour Acres Subd. No.4, Lot 1, BLK 4 Date Performed: COMMENTS s ode 1 r; WAS GROUND WATER ENCOUNTERED? / 5 IF YES. AT WHAT DEPTH? L./........ L/ 0 Depth to WatrAltr. P Monitoring? ' -%PAI / S E Dale: iD 45, s ..vwt ... Si' an: +-iss %1 1 /lb, 1 .o..mPutbsec t . Reading Date Gross Time Net Time Depth to Water Net Drop f (10/06 /7 :O', '''.. t7.7• p7;31 84-5 3.134 I'M I 5.Flo Mtii 3- b.bI 3n4 /SI+ 963 /t' 30 S jtf 3.31 ,- ," 1m..anAnM PERCOLATION RATE ,. Y rcrt� TEST RUN BETWEENiii.• SFT AND ��'a FT �t c6 ci 15' ii%'s rr e s Dia• �4FS PERFORMED BY:1 CERTIFY THAT THIS TEST WAS PERFORMED IN AC RDD°NCE WITH ALL STATE AND MUNICIPAL GUIDELINES IN EFFECT ON THIS DATE DATE ON-SITE WASTEWATER DISPOSAL SYSTEM CONSTRUCTION AND MATERIAL SPECIFICATIONS SUBJECT: LOT 1, BLOCK 4, CONTOUR ACRES SUBDIVISION ADDN. 4 GENERAL: 1. The scope of this project includes the procurement and placement of a new 1,250 -gallon septic tank at the location shown on the Site Plan. Work also includes the construction of a new 54' long X 3' wide X 7' effective depth absorption trench at the location also shown on the Site Plan. The distribution line in the trench will be placed at 7' below the existing ground surface. Total depth of the trench will be 14' below the existing ground surface. The new absorption trench and septic tank must be placed a minimum of 100' from all private wells and any surface water in the area and 10' from the water service line proposed for the lot. A minimum of 3' of cover is required over the absorption trench and 4' of cover over the septic tank. A flow splitter valve must be placed to insure even flow to each trench. 2. 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. 3. 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 and easements. The Contractor must also verify the location of wells in the area and assure that the separation distances are met. 4. 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. 5. Contractors installing wastewater disposal systems must be certified by the Municipal Building Safety Division On -Site Water and Wastewater Program for system installations. Owners installing their own systems must receive prior approval from the On -Site Water and Wastewater Program. before beginning system installation. SEPTIC TANK INSTALLATION 1. A new 1,250 -gallon septic tank must be procured from an approved source and installed at the location shown. 2. A septic tank is to be constructed by a certified septic tank manufacturer. Construction shall include two 4" cleanouts for pumping access. Lot 1, Block 4, Contour Acres October 30, 2008 Page 2 of 3 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. 5. Tanks installed without 4' of cover shall have a minimum of 2" of direct burial insulation. 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: 1. The drainfield shall be constructed to the dimensions shown on the design. The bottom of the trench shall be within 2" of level. 2. 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. 5. Contractor shall verify 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. 6. 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 trench to drain away. 8. A minimum 2' of accepting soil is required below the drainfield rock for a 5' wide trench. All pockets of unacceptable materials must be removed and replaced. Lot 1, Block 4, Contour Acres October 30, 2008 Page3of3 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). 4. Septic tank inlets and outlets shall be fitted with watertight couplings (Caulder, Fernco, or equal). 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 Tess 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 fabric, 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. In addition, the owner must proved an as -built of the lot showing the location of the house and septic system prepared by a registered land surveyor for use in preparation of the septic system as -built. frr717,7 Municipality of Anchorage Development Services Department Building Safety Division On-Site Water and Wastewater Program 4700 Bragaw Street P.O. Box 196650 Anchorage, AK 99519-6650 www.muni.org/onsite (907) 343-7904 CERTIFICATE OF ON-SITE SYSTEMS APPROVAL FOR A SINGLE FAMILY DWELLING cosA# /14 Oq 032.6 Expiration Date: /,2 — / 8 — o ct Parcel I.D. 01738132 1. GENERAL INFORMATION Complete legal description Lot 1, Block 4, Contour Acres Subdivision No. 4 Location (site address) 5116 Vaquero Road Anchorage, AK 99516 Current Property owner(s) Northem Home Builders Mailing address Lending agency Mailing address 5725 Yukon Charlie Loop Anchorage, AK 99502 Day phone 830.2052 Day phone Real Estate Agent Day phone Mailing Address Unless otherwise requested, COSA will be held by DSD for pickup. 2. NUMBER OF BEDROOMS: 3. TYPE OF WATER SUPPLY: Individual Well Individual Water Storage Community Class Well Public Water System Four(4) TYPE OF WASTEWATER DISPOSAL: ❑ Individual On-site O Individual Holding Tank O Community On-site O Public Sewer The Municipality of Anchorage Development Services Department (DSD) issues Certificates of On -Site Systems Approval (COSA) based only upon the representations given in paragraph 4 by an Independent professional civil engineer registered in the State of Alaska. Certificates of On -Site Systems 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 COSAs upon request to homeowners. Certificates of On -Site Systems 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. (Certificates may be reissued 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 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 Anderson Engineering Address P.O. Box 240773 Anchorage, AK 99524 Engineer's Printed Name Michael E. Anderson, P.E. 5. DSD SIGNATURE Approved for Disapproved. Conditional approval for bedrooms. Phone 5224773 Date 9/3/2009 bedrooms, with the following stipulations: `c • • , .......• cryo ON-SITE 6'-Yoi ; WATER AND ; R'= WASTEWATER = PROGRAM ' �'. kNTf5 )c)) Attachments: COSA Checklist X Septic System Advisory Well Flow Advisory Nitrate Advisory Arsenic Advisory Maintenance Agreements Supplemental Engineer's Report Other By: 6`/ Original Certificate Date: (Rev. 11/05) 1-/8-07 Municipality of Anchorage Development Services Department Building Safety Division On -Site Water & Wastewater Program 4700 Bragaw Street P.O. Box 196650 Anchorage, AK 99519-6650 www.muni.org/onsite (907) 343-7904 CERTIFICATE OF ON-SITE SYSTEMS APPROVAL CHECKLIST Legal Description: Lot 1, Block 4, Contour Acres Subdivision No. 4 A. WELL DATA Well type Private If A, B, or C provide PWSID # _ Well Log (Y/N) Y Date completed 11,07/08 Sanitary seal (Y/N) Y Wires properly protected (Y/N) ¥ Total depth 386 ft. Cased to 147 ft. Casing height (above ground) >24 in. FROM WELL LOG AT INSPECTION • Date of test ' 11/07/08 Static water level 138 ft, ft Well production 2 g.p.m, g.p.m. WATER SAMPLE RESULTS: Coliform 0 colonies/100 mL Nitrate •126 mg/L Other bacteria 0 colonies/100 mL Arsenic: Nro mg/I. Date of sample: 0/3/00 Collected by: M. Anderson B. SEPTIC/HOLDING TANK DATA Tank Type/Material Septic/Steel Date installed 11/06/08 Tank size 1.250 gal. Number of Compartments Two Cleanouts (Y/N) Y Foundation cleanout (Y/N) Y. Depression over tank (Y/N) N High water alarm (Y/N) N Date of pumping New Construction Pumper C. ABSORPTION FIELD DATA Parcel ID: 017-381-32 Date installed 11/6/08 Soil rating (g.p.d./ft2 or ft2/bdrn).B GPD/SF System type Deep Trench Length 55 it Width 3.. ft. Gravel below pipe _ ... low pipT fL Total depth 78 ft. _ Eff. absorption area 770 ft2 Monitoring tube Y Depression over field N Date of adequacy test New Const. Results (Pass/Fail) For bedrooms Fluid depth In absorption field before test in. Water added gal New depth ' in. Elapsed Time: min. Final fluid depth In. Absorption rate >= g.p.d. Any rejuvenation treatment (past 12 mo.) (Y/N & type) If yes, give date D. LIFT STATION Date installed 'Pump on' level at _ in. Datum E. SEPARATION DISTANCES Size in gallons 'Pump or level at _ in. Cycles tested SEPARATION DISTANCES FROM WELL ON LOT TO: Septic tank/lift station on lot >100' Absorption field on lot >too' Public sewer main N/A Sewer/septic service line >25' Animal containment areas None Manhole/Access (Y/N) High water alarm level at in. Meets alar & circuit requirements? On adjacent lots >100' On adjacent lots >100' Public sewer manhole/cleanout N/A Holding tank N/A Manure/animal excrete storage areas None SEPARATION DISTANCES FROM SEPTIC/HOLDING TANI< ON LOT TO: Building foundation >5' Water main N/A Wells on adjacent lots >100' Property line >51 Water service line >10' SEPARATION DISTANCE FROM ABSORPTION FIELD ON LOTTO: Property line >10' Building foundation >10' Water Service line >10' Surface water >100' Absorption field >5' Surface water >100' Water main >10' Driveway, parkingNehicle storage >25' Curtain drain None Noted Wells on adjacent lots >100' F. COMMENTS: G. ENGINEER'S CERTIFICATION 1 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. Engineer's Printed Name Michael E. Anderson, P.E. Date 9/10/09 Ark.*. OF &4 1�• 4 rc'j. .v# *; 49111 iN ...: •Olt 0 *so i 0c. ; N 00'01'00-E 448.55' Le29.64' R�189.35' . ..o • SEPTIC SYSTEM PLAT NO. 73-167 CONTOUR ACRES, FOURTH ADDITION LOT 1 , BLOCK 4 2.47 ACRES �• -- REATA DRIVE VAQUERO ROAD 0 M S 89'58'45t 190.85' EXISTING BUILDING 30?5 FSMr�- 5.?0. 10' UTIL ESMT. 00'01'13"E 528.49' z AS -BUILT GASTALDI LAND SURVEYING, LLC JEFF A. GASTALDI, R.L.S. 2000 E. DOWUNG RD., SUITE 8 ANCHORAGE, ALASKA 99507 PHONE 248-5454 GRID 2837 DATE 2/17/2009 F.B. 09-01 JOB NO. CTS14 I HEREBY CERTIFY THAT I HAVE SURVEYED THE PROPERTY DEPICTED ABOVE AND THAT NO ENCROACHMENTS EXIST EXCEPT AS INDICATED. IT IS THE RESPONSIBILITY OF THE OWNER TO DETERMINE THE EXISTENCE OF ANY EASEMENTS, COVENANTS OR RESTRICTIONS WHICH DO NOT APPEAR ON THE RECORDED SUBDIVISION PLAT. UNDER NO CIRCUMSTANCES SHOULD ANY DATA HEREON BE USED FOR CONSTRUCTION OR FOR ESTABLISHING BOUNDARY OR FENCE LINES. ANCHORAGE RECORDING DISTRICT, ALASKA NOTE: NO CORNERS SET THIS DATE. 1"=50' er AP" i*: 49111 :*•! A 411 • s. Jeffery A. Gastaldl • • O + . 1, i• � t 11,�a . IS -6091 t et • SGS,_ CTBE Ref. #: Client Name: Project Name: Client Sample ID: Matrix: PWSID 1094656 Anderson Engineering Contour Acres #4 Lot 1 Block 4 Dnnking Water n/a SGS Environmental Services 200 W. Potter Drive Anchorage, AK 99518 Tel: (907) 562-2343 Fax: (907) 561-5301 Client PO#: Printed Date/Time: Collected Date/Time: Received Date/Time Technical Director. Released By: n/a 09/09/09 13:10 09/03/09 11:00 09/03/09 12:00 Stephen Ede Deanna Crump Sample Remarks: Nitrate and Coliform data Parameter Nitrate Colony Count Coliform Results POL Units Allowable Method Limits Prep Analysis Date Date Init 0.126 0.00 0.00 mg/L col/100m1 col/100m1 SM 4500 SM 92228 sM 92228 10 9/4/2009 09/04/09 RJT 0 0 9/3/2009 09/03/09 DLC 0 0 9/3/2009 09/03/09 DLC R&M ENG_ EERING •& GEOLOGIC 1 CC. NSU TANTS Civil Engineers JAMES N . ROONEY, P. E. MALCOLM A. MENZIES, P.E., L.S. JAMES H. WELLMAN, P.E. 229 EAST" 51st. AVE. --- P.O. BOX 6087 — ANCHORAGE, ALASKA 99503 TELEPHONE 907-279-0483 TELEX 090---35419 Geologists Land Surveyors RALPH R. MIGLIACCIO Englneering Geologist August 21, 1973 R & Int. No. 36648 Northwest Pacific Construction 4517 Seward Highway Anchorage, Alaska 99502 RECEv ED AUG €)1973 AM GREATER ANCHORAGE AREA BOROUGH DEPT. OF ENVIrioNr"p rAi ')UA ITV Re: Test Hole and. Soil Log Report_ for Sanitary System Lot 1, Block 4, Contour Acres Subdivision Dear Sir: We are submitting herewith the test boring results and our comments regarding soil conditions encountered at the subject site. This investigation was performed in accordance with your request of August 15, 1973, and those procedures outlined. in a letter dated September 13, 1971 by Mr. Rolf Strickland of the Greater Anchorage Area Borough Department of Environmental. Quality. A single test hole was put down within the Lot 1 area for the purpose of defining general subsurface soil conditions for the proposed sanitary system. Excavation was accomplished with a tractor --mounted backhoe and the test hole was extended to a totxl depth of 14 feet below ground surface. The final log prepared for the test hole has been included in Drawing A-01. Ground water was not encountered :i.n the test hole. We appreciate being given this opportunity to be of service t:o you. Should you have any questions with regard to the above, please do not hesitate to contact us. Very truly yours, 1:Z & M ENGINEERING & GLOLCGIXIA:L CONSULTANTS James W, Rooney. WR. ph xc: GAAB�/ ANCHORAGE FAIRBANKS JUNEAU Til- 1 8/15/73 1 0 . • 0 Z. o *0 .7 0 0 • 0 o..0 • • 0 c•-_> 0 • 0 - 0 • 0.0 •V a ORGANICS W /SOME SILT AND SAND SILTY SANDY GRAVEL (GM) W.A.TE T A13 LE 0. 0 2. 0 /Iv 'NOT E: Test hole excavated with Inoutd:c.0 i2a.cd<11.0c:!.. Eng frr.,)aring Geologicu I CorrzA0tcr3:•.3 A N CHOtAOt: FAIR A 11 i( ALAsx juNci:Ati 1.4. 0 T oRT 1.)"),C!: FIG CC) 1SL LOG Or TEST.1101...,E . , • ,7 . , I CYA/ 7,1 BY p CcIKD DY • - .