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Home My WebLink AboutALMDALE LT 1AOnsite File Inspection Report_1-1-12.doc - Municipality of Anchorage Community Development Department Page 1 of 3 On -Site Water and Wastewater Program 4700 Elmore St. • P.O. Box 196650 Anchorage, AK 99519-6650 • http://www.muni.org/onsite • (907) 343-7904 ON-SITE WASTEWATER INSPECTION REPORT Permit Number: OSP151055 PID Number: 051-312-14 ❑✓ New ❑ Upgrade Name: ABSORPTION FIELD Troy Davis Homes ❑ Deep Trench ❑✓ Shallow Trench ❑ Bed ❑ Mound Address 165 E. Parks Hwy, Suite 200 Wasilla, AK 99654 ❑ Other Phone Number of Bedrooms Soil Rating Total depth from original grade 357-9394 4 .8 GPD/SF 4.6-4.8 Ft. LEGAL DESCRIPTION Depth to pipe invert from original grade 2.6-2.8 Ft. I Gravel depth beneath pipe 2.OFt. Subdivision Block Lot 122 Fill added above original grade 1.5-3 FL Gravel length 106 Ft. Township Range Section 15N 2W 25 Gravel width 5Ft. Beds: Number of Lines Distance between lines Ft. SEPARATION DISTANCES TO Septic Absorption Holding Sewer Total absorption area Number of trenches Dist. between trenches From Tank Field Lift Station Tank Line 757 Fel Two >10FL Well >100' >100' >100' >75' >25' TANK ❑ Septic ❑ S.T.E.P. ❑ Holding ❑ Other Manufacturer Anchorage Tank Capacity 1,25OGal. Surface water >100' >100' N/A NIA Material Steel Number of compartments Two Lot Line >5' >10' N/A N/A NA Foundation >5' >10' N/A NIA LIFT STATION Manufacturer Capacity Gal. Curtain Drain NoneNoted Pump on level at Pump off level at High water alarm at Remarks in. in. in. Pump make and model Electrical Inspections performed by PIPE MATERIAL House to tank D3034 Tank to D3034 drainfield Installer Northern Excavation Drainneld F810 CO/MT D3034 Inspector W Roberts BENCH MARK (Assumed elevation) 100.Oft Inspection 1' 4/20/15 4/21/15 Location and description dates: 2m Back Deck SE Corner. 3" 4/22/15 4'" COMMUNITY DEVELOPMENT DEPARTMENT APPROVAL E:gneirtilmp OF A Conditional Approval: Date`P� 49-H*•:*�i �.... .... ... .... ...0 j..... ............................. e >! rte„• MICHAEL E. ANDERSON 00 AV CE - 4381 /D is `4v' ��It, Approved Date /S is` Inspection Report_1-1-12.doc - On-Site Water & Wastewater System Permit MUNICIPALITY OF ANCHORAGE Development Services Department On-Site Water & Wastewater Program 4700 Elmore Road, PO Box 196650 Anchorage, AK 99519-6650 Telephone: (907) 343-7904 Permit Number: OSP151055 Tax Code Number: 05131214000 Work Type: WelISeptic Initial Permit Effective Dates: April 08, 2015 to April 07, 2016 Design Engineer: ANDERSON ENGINEERING Subdivision: T15N R2W SEC 25 Site Legal Address: T15N R2W SEC 25 LT 122 G:0653 Owner/Address: DICKSON KELLY A 2008 TRUST DICKSON KELLY A / TRUSTEE 40948 VISTA VALLE PALMDALE CA 935511195 Site Mailing Address: 18024 ALMDALE AVE, Eagle River Lot Size in Sq Ft: 108900 Total Bedrooms: 4 This permit is for the construction of: Y Disposal Field Y Septic Tank N Holding Tank 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. Received By: Issued By: MUNICIPALITY OF ANCHORAGE Community Development Department Development Services Division On-Site Water & Wastewater Program Phone: 907-343-7904 Fax: 907-343-7997 ON-SITE SEWERNVELL PERMIT APPLICATION Pamel I.D. 051-312-14 Property owner(s) Troy Davis Homes Day phone 310-2501 Mailing address 165 E. Parks Highway #200 Wasilla, AK 99654 Site address 18024 Almdale Avenue Eagle River, AK 99577 Legal description (Sub'd., Block & Lot) Legal description (TownshiP, Range & Section) T15N R2W Section 25 Lot 122 Lot Size 108,900 Sq. Ft. Number of Bedrooms Four APPLICATION IS FOR: (~:=1 all that apply) Absorption Field [] Septic Tank [] Holding Tank [] Privy [] Private Well [] Water Storage [] APPLICATION IS AN: TYPE OF DWELLING: initial [] Single Family (SF) (w/wo ADU) Upgrade [] Duplex (D) Renewal [] Multiple Dwellings (SF and/or D) THIS APPLICATION INCLUDES A VARIANCE I WAIVER REQUEST FOR: Dis tance: 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: Date of Payment: Receipt U umber: Permit No. Waiver Fees: Date of Payment: Receipt Number: Waiver No. Permit App_.'- :. I ANDERSON ENG INEERI NG Ij / P;O: BOX 240773 / ANCHORAGEi AK 99524 ~ 522.7773 677:7766 (FAX) March 23, 2015 Municipality of Anchorage Development Services Department On-Site Water and Wastewater Program 4700 South Bragaw Street Anchorage, AK 99519-6650 Subject: BLM Lot 122, Section 25, T15N, R2W Septic System Design and Permit Application Impacts to Adjacent Properties Dear Onsite Services Engineer: The owner of BLM Lot 122 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 septic system along with the alternate site. No existing wells are closer than 100' from the proposed septic system. Drainage arrows and ground surface contours 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 tract in the area of the absorption trench and alternate site indicated silty sand with gravel (SM) material. The percolation rate of the soil was determined to be 11-14 minutes per inch. Groundwater was found at 11' beneath the surface during the placement of the test holes and was recently found at slightly more than 10' 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 2-53' long by 5' wide by 2' 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 3' below the surface and the total depth will be 5'. 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 from the east to the west at shallow slopes. 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 all wells and any BLM Lot 122, Section 25, TI5N, R2W March 23, 2015 Page Two surface water and 10' from the proposed and existing water services in the area. If the system is constructed in accordance with our design the fOllOwing statements apply: [. 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. 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 N89'49'40"W 529.01 NOTE: NO Areos of Excessive Slope ore · · . 131 W,th,n 50 Oownslope or Su~oce LEGEND Woter Within 100' of Any PO~ of the MT - Monier Tube ~. - T.~ .o,~ 132 co - cme*n Out t:~:~~ S I T E P L A N 2C0- Double 6leon Out -- - - 4700 DEPTH (~et) 1 2 3 4-- 5 6 7 8 9 11 20- MUNICIPALITY OF ANCHORAGE DEVELOPMENT SERVICES DEPARTMENT BRAGAW STREET ANCHORAGE, AK 99519-6650 SOILS LOG - PERCOLATION TEST ] LEGAL DESCRIPTION: BLM LOT 122, TI5N, R2W, SECTION 25 PERFORMED FOR: DATE: 2/27/15 PARCEL ID#: OB/OG SILTY SAND WITH GRAVEL SH TROY DAVIS HOMES. INC. PROJECT No.: TECHNICIAN: [TEST HOLE1 ] WAS GROUND WATER ENCOUNTERED? __ IF YES ~ WHAT DEPTH'~__ DEPTH OF WATER AFTER MONITORING: BOH @ 16' L. BETTS SLOPE YES SITE PLAN SEE SITE PLAN DATE OF MONITORING: 5/21;r5 ~ ~ DEPTH TO DATE READING GROSS TildE NET TINE WATER NET DROF (MINUTES) (MINUTES) (INCHES) (INCHES) TEST HOLE PRESOAKED PRIOR TO TESTING: 2/28 1 I0:08 1.50" 2 10:38 30 3.75" 2.25" 3 10:39 125" 4 11:09 30 3.50" 2.25" 5 11:10 1.38" 6 11:40 30 3.63" 2.25" PERCOLATION RATE:13.3 (M1N/INCH) PERC. HOLE DIA. 6" J~INCHES) TEST RUN BETWEEN: 4.0 FT. and 5.0 .FT. 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 MUNIC1PLE GUIDELINES IN EFFECT ON THIS DATE 5/22/15 &700 DEPTH (feet) 1 2 3 4 5 6 7 8 9 11 MUNICIPALITY OF ANCHORAGE DEVELOPMENT SERVICES DEPARTMENT BRAGAW STREET ANCHORAGE, AK 99519-6650 SOILS LOG - PERCOLATION TEST LEGAL DESCRIPTION: PERFORMED FOR: DATE: 2/£7/15 PARCEL ID#: OB/OG SILTY SAND WITH GRAVEL SH BOH @ 16' BLM LOT 122, TISN, R2W, SECTION 25 TROY DAVIS HONES, INC. PROJECT No.: TECHNICIAN: WAS GROUND WATER ENCOUNTERED? IF YES ~ WHAT DEPTH? DEPTH OF WATER AFTER MONITORING: L. BETTS SLOPE YES SITE PLAN SEE SITE PLAN 2% J DEPTH TO DATE READING 3ROSS TIME NET TIME WATER NET DROP (MINUTES) (MINUTES) (INCHES) (INCHES) TEST HOLE PRESOAKED PRIOR TO TESTING: 2/28 1 12:04 0.50" 2 12:34 30 3.25" 2.75" 3 12:35 0.87" 4 1:05 30 3.50" 2.63" 5 1:06 0.75" 6 1:36 30 3.38" 2.63" PERCOLATION RATE:I 1.4 (MIN/INCH) PERC. HOLE DIA. 6" .(INOIES) TEST RUN BETWEEN:. 4.0 FT. and 5.0 FT. 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: 5122/IS T15N R2W SECTION 25 BLM LOT 122 DESIGN FACTORS: Four Bedroom Home Perc. Rate: 6-15 Min./Inch Application Rate: .8 GPD/SF SYSTEM REQUIREMENTS: 5' Wide Trench System 1.250 Gallon Septic Tank 2' Drainfield Rock 4 Bedrooms * 150 GPD/Bedroo.m. = 600SF Abso. rpti. o~n_A, r_ea_.. . 600 SF/.8 GPDISFt5 SF (Width) .7 (Red. Factor)= lub Lb/rencn Length THEREFORE: Construct 2-53' Long x 5' Wide x 2' Effective Depth Absorption Trenches. 3' Below Existing Ground. Provide 3' Cover Over Absorption Trenches and 4' Cover Over Septic Tank. Plabe Flow Splitter Valve to Insure Even Flow to Each Trench. ,1 / Geotextile Fabric ~ 4" Per[orated PVC (Holes Down) Drainfield Rock TYPICAL 5' WIDE TRENCH SECTION (.OSCALE) . ........... _--' %"' NOTE' Grade Area Over Trench to Dra~n Away. ~ ~ Mimmum 6. Separation From Bedrock. ~...~-...~.......8......~..~.,.-..~ Minimum 4 Separation From Groundwater. ~ ~. Minimum 100' Separation From Private Wells in the Area. ~'~'";;;~.~;~;;~;'"?'~ Minimum 100' Separation From Sudace Water or Streams. ~.. No. '*;~*...,~. 7- ~....*'*~