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Home My WebLink AboutTHE HIDDEN HILLS #1 BLK 1 LT 15Th Hidd n Block I Lot 15 #050-183-43 Permit Number: OSP161083 Tax Code Number: 05018343000 Work Type: WellSeptic Permit Effective Dates: May 11, 2016 On-Site Water & Wastewater System Permit MUNICIPALITY OF ANCHORAGE Development Services Department On-Site Water & Wastewater Program 4700 EImore Road, PO Box 196650 Anchorage, AK 99519-6650 Telephone: (907) 343-7904 Initial to May 11,2017 Design Engineer: ANDERSON ENGINEERING Subdivision: THE HIDDEN HILLS #1 Site Legal Address: THE HIDDEN HILLS #1 BLK 1 LT 15 G:0152 Owner/Address: Troy Davis Homes, Inc. 1689 KNIK GOOSE BAY RD #400 WASILLA AK 996540000 }ar tlllent Site Mailing Address: 16920 LYNNE DR, Eagle River This permit is for the construction of: Y Disposal Field Y Septic Tank N Holding Tank Lot Size in Sq Ft: 40000 Total Bedrooms: 4 N Privy Y Private Well N 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 wastewater code requires inspections during the installation. The engineer must notify the Development Services Department at least 2 hours prior to each inspection. Provide notification by calling (907) 343-7904 (24 hours). 4. From October 15 to April 15, a subsurface soil absorption system under construction during freezing weather must either: A. Open and Close on the same day. B. Covered, sealed, and heated to prevent freezing. MUNICIPALITY OF ANCHORAGE Community Development Department Development Services Division On-Site Water & Wastewater Program Fax: 907~34~ ON-SITE SEWER/WELL PERMIT APPLICATION Parcel I.D. 050-183-43 Property owner(s) Troy Davis Homes, Inc. Day phone 310-2501 Mailing address 1689 Knik Goose Bay Road ,~N-00 Wasilla, AK 99654 ' Site address 16920 Lynne Drive Eagle River, AK 99655 Legal description (Sub'd., Block & Lot) The Hidden Hills #1, Block 1, Lot 15 Legal description (Township, Range & Section) Lot Size 40,000 Sq. Ft. Number of Bedrooms Four (4) APPLICATION IS FOR: APPLICATION IS AN: TYPE OF DWELLING: ([~ all that apply) Absorption Field [] Initial [] Single Family (SF) [] (wlwo ADU) Septic Tank [] Upgrade [] Duplex (D) [] Holding Tank [] Renewal [] Multiple Dwellings [] Privy [] (SF and/or D) Private Well [] Water Storage [] THIS APPLICATION INCLUDES A VARIANCE / WAIVER REQUEST FOR: Distance: I certify that the above information is correct. I further certify that this is in accordance with applicable Municipal Codes. (Signature of property owner or authorized agent) Permit/Rush Fees: ~ '~ ~-I~' ~ Date of Payment: ~ Iac/l Receipt Number: OOIl'~r~ ~ Permit No. ~ ¢1~ I~ Waiver Fees: Date of Payment: Receipt Number: Waiver No. Pemnit App_2- :. :L.Jc; Apd126, 2016 Municipality of Anchorage Development Services Department On-Site Water and Wastewater Program 4700 South Bragaw Street Anchorage, AK 99519-6650 Su~e~: Lot 15, Block 1, Hidden Hills Subdivision No. 1 Septic System Design and Permit Application Impacts to Adjacent Properties Dear Onsite Services Engineer: The owner of Lot 15, Block 1, Hidden Hills Subdivision No. 1 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 new 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. All surrounding lots are served by the Municipal Water and Wastewater Utility. 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 hole placed on the lot in the area of the absorption trench and alternate site indicated silty gravel with sand (GM). The percolation rate in the material was determined to be 2 minutes per inch. Groundwater was found during the placement of the test hole at 11' and remained at that level dudng the monitoring period. An application rate of 1.2 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 50' long by 5' wide by 4' 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 2' below the surface and the total depth will be 10'. 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 absorption trench slopes to the northwest. The new trench will be constructed parallel with the contours of the slope as much as possible in conformance with Municipal requirements. The new septic system will be constructed a minimum of 100' from any surface water and 10' from the Lot 15, Block 1, The Hidden Hills Subdivision No. 1 April 26, 2016 Page Two proposed and existing water services in the area. If the system is constructed in accordance with our design the following statements apply: l. 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 lots 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, Michael E. Anderson, P.E. Attachments LOT 50 BLOCK 1 DALE BRIGGS Municipal Water & Sewer NOTE: No Areas of Excessive Slope Within 50' or Surface Water Within 100' of Any Part of the New Septic System. TH - Test Hole CO - Clean Out MT - Monitor Tube 2C0 - Double Clean Out SV - Septic Vent FCO - Foundation Clean Out THE HIDDEN HILLS SUBDIVISION LOT 15, BLOCK 1 LYN ~- _ 40,000 S.F. 2co ~ 1,250 Geller Septic Tonk Fao NO. 1 Four Bedroom Home LOT 24A BLOCK 1 DALE BRIGGS Municipal Water~ z & Sewer ® Proposed Well / / ~ LOT 1 4 / LOT 13 ~ Municipal Water ~ & Sewer Municipal Water ~ &Sewer SIT[' PLAN SCALE 1' = 40' / / / LOT 15, BLOCK 1, THE HIDDEN HILLS SUBDIVISION #1 DESIGN FACTORS: SYSTEM REQUIREMENTS: Four Bedroom Home 5' Wide Trench System Peru. Rate: 1-5 Min./Inch 1,250 Gallon Septic Tank Application Rate: 1.2 GPD/SF 4' Drainfield Rock 4 Bedrooms * 150 GPD/Bedroom = .600 GPD Design Flow 600 GPD/1.2 GPD/SF/5 SF (Width) .5 (Red. Factor)= 50 LF Trench Length THEREFORE: Construct a 50' Long x 5' Wide x 4' Effective Depth Absorption Trench. Flow Line Elevation in Trench to be 2' Below Odginal Ground Surface. Total Depth to be 6' Below Existing Ground. Provide 3' Cover Over Absorption Trench and 4' Cover Over Septic Tank. ~Geotextile Fabric 4" Perforated PVC (Holes Down) Drainfleld Rock TYPICAL 5' WIDE TRENCH SECTION NOTE: .G..ra.do Arena, ~Ovor Trench._ to Drain Away, f Mmrmum ~ ~eparation ~-rom Bedrock. ~.,.., -~, ......... Minimum 4' Separation From Groundwater. ~~ Minimum 100' Separation From Private Wells in the Area. ~'~'t.'"'~',~'~'~'L'~"['~'~""~",~- Minimum 100' Separation From Suda~ Water or Streams ~" ' . 4700 DEPTH (f~a) 1 2 4 6-- 7-- 8 11 MUNICIPALITY OF ANCHORAGE DEVELOPMENT SERVICES DEPARTMENT BRAGAW STREET ANCHORAGE, AK 99510 6650 SOILS LOG - PERCOLATION TEST LEGAL DESCRIPTION: Lot 15, Block 1, The Hidden Hills No. 1 PERFORMED FOR: Troy Davis Homes DATE: 2/19/16 PROIECT No.: PARCEL ID#: TECHNICIAN: A. Harala OB/OG GM Some Cobbles B.O.H. SLOPE WAS GROUND WATER ENCOUNTERED? Yes DEPTH OF WATER AFTER MONITORING: I 1 ~ DATE OF MONITORING: 2~ DATE 2/19 SITE PLAN (MINUTES) I (MINUTES) (INCHES) I (INCHES) TEST HOLE PRESOAKED PRIOR TO TESTING: 2 3 4 12:51 1:02 1:13 1:24 5 1:35 6 1:46 10 8.38'v11.94. 5.56" 10 8.25"/m.25"I 5.00" 10 8.31"/13.88.] 5.57" l0 8.31"113.31"I 5.00" 10 8.38"/13.94,, 10 8.44"/13.94" 5.50" PERCOLATION RATE: 2.0 (MIN/INCH) PERC. HOLE DIA. 6 TEST RUN BETWEEN: 4.5 FT. and 5.5FT. COMMENTS: TEST HOLE PRE SOAKED PRIOR TO TEST. TEST PERFORMED BY ANDERSON ENGINEERING. I, MICHAEL E. ANDERSON CERTIFY THAT THIS WAS PERFORMED IN ACCORDANCE WITH ALL STATE AND MUNICIPLE GUIDELINES IN EFFECT ON THIS DATE:_ 8/6/13 ~ D~te: 3/2/06 Neme: ~E HIDDEN HILLS. ADDIT. No. I Loc~tton: EAGLE RI~R, ALASKA Hole No.: ~--10 T~e of Boring: AUGELRig:~ D~tum: ~32.67' Englneer: CJM ,Wt. H~mmer: 140 ORGAN1CS 1 __ S~LW ~RA~ ~ SAND (~) (F2) 1 1 ~ 2 ~ BOSOM OF ~ST HO~ AT 16.2'~ 17