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Home My WebLink AboutSCHROEDER EAST BLK 1 LT 16hroed r ast Block Lot 16 #050-063 -08 Permit Number: OSP151134 Tax Code Number: 05006308000 Work Type: Septic Permit Effective Dates: May 27= 2015 On-Site Wastewater Disposal 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 Initial to May 26, 2016 Design Engineer: ANDERSON ENGINEERING Subdivision: SCHROEDER EAST Site LegalAddress: SCHROEDER EAST BLK 1 LT 16 G:0352 Owner/Address: HARTLEY JUDY L PO BOX 672067 CHUGIAK AK 995672067 Depa r tmel~t Site Mailing Address: 17515 SANTA MARIA DR, Eagle River Lot Size in Sq Ft: 21505 Total Bedrooms: 3 This permit is for the construction of: Y Disposal Field Y Septic Tank N Holding Tank N Privy N 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 (ISAACS0). 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: Date: Date: RUSH! Community Development Department Development Services Division On-Site Water & Wastewater Program ON-SITE SEWER/WELL PERMIT APPLICATION Parcel I.D. 050-063-08 Property owner(s) Troy Davis Homes Day phone 310-2501 Mailing address 165 E. Parks Highway #200 Wasilla, AK 99654 Site address 17515 Santa Maria Drive Eagle River, AK 99577 Legal description (Sub'd., Block & Lot) Schroeder East, Block 1, Lot 16 Legal description (Township, Range & Section) Lot Size 21,505 .Sq. Ft. Number of Bedrooms Three APPLICATION IS FOR: ([] 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 / 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: Date of Payment: Receipt Number: Permit No. q lO, 4O OSPl lt q Waiver Fees: Date of Payment: Receipt Number: Waiver No. May 26, 2015 Municipality of Anchorage Development Services Department On-Site Water and Wastewater Program 4700 South Bragaw Street Anchorage, AK 99519-6650 Subject: Lot 16, Block 1, Schroeder Subdivision East Addition Septic System Design and Permit Application Impacts to Adjacent Properties Dear Onsite Services Engineer: The owner of the subject lot intends to construct a three bedroom home. We are therefore requesting a permit be issued for the construction of a new septic system to accommodate the home. The attached Site Plan and backup documentation identify the location and configuration of the proposed septic system. The subdivision is served by the AWWU water system and a service will be extended to this lot. No existing wells or septic systems are closer than 100' from the proposed septic system 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 proposed absorption trench indicated silty sand with gravel (SP/SM) material. The percolation rate of the soil was determined to be 10.9 minutes per inch. Groundwater was found at 10' during the placement of the test hole and stabilized at 10.5' below the surface during the monitoring period. A recent inspection on May 27 indicated the water was at 11' below the surface. 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 STEP tank and a 72' long by 5' wide by 2.5' 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 3.5' below the surface and the total depth will be 6'. 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 southeast at approximately 10%. The new trenches will be constructed parallel with the contours of the slope as much as possible in conformance with Municipal requirements. Lot 16, Block 1, Schroeder Subdivision East Addn. May 27, 2015 Page Two The new septic system will be constructed a minimum of 100' from all wells and any 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 14 15 / / / / / 18 / / / / 16 AREA MAP SCALE ~.' = 60' NOTE: Subdivision is Served by AWWU Woter System, No Conflicts with A~ljocent Wells or Septic Systems. PUBLIC WATER PUBLIC WATER LEGEND SV - Septic Vent CO Cleon Out MT - Monitor Tube TH - Test Hole MH - Mort Hole 15 PUBLIC WATER 16 / AIterhote S;te '2' Long x 5' Wide x 2,5' Depth Absorpti Trench. 1,250 Step To~ FCO pROPOSe-0 HOUSE G.F.F- ELEV. 365 TH2 ® 17 Existing Well Cosing Not in Use -~W~r Serwce ~'~-- ~ 49th PLAN SCALE 1' = 30' NOTE: No ,~reos of Excessive Slope or Surfo,ce Woter ore Within 100 of Any Port of the New Septic System. LOT 16, BLOCK1, SCHROEDER EAST SUBDIVISION DESIGN FACTORS: Three Bedroom Home Perc. Rate: 6-15 Min./Inch Application Rate: .8 GPD/SF SYSTEM REQUIREMENTS: 5' Wide Trench System 1,250 Gallon STEP Tank 2.5' Drainfield Rock Pressure Distribution System 3 Bedrooms * 150 GPDIBedroo,m, = 450 SF Abs. orptio_n_A, r._ea_ . 450 SF/.8 GPD/SF/5 SF (Width) .64 (Red. FacTor)= /z Ll-/rencn Length THEREFORE: Construct a 72' Long x 5' Wide x 2.5' Effective Depth Absorption Trench at the Location Shown. FIowline Elevation to be 3.5' Below the Existing Ground Elevation. Total Depth to be 6' Below Existing Ground. Provide 4' of Cover Over Septic Tank and 3' of Cover Over Absorption Trench. In lieu of Insulation Place 2" of Insulation and 2' of Cover. _._-.--- Geotextile Fabric 6 ~ 1" Perforated .~ PVC (Holes Down) 30 - 3/16" Holes @ 2.4' 2'6" -- Drainfield Rock TYPICAL 5' WIDE TRENCH SECTION (NO SCALE) .,.~ '" :." .,./i-~ "~Y NOTE: Grade Area Over Trench to Drain Away. ~'~... Minimum 6' Separation From Bedrock. ~'"-'~'~1""'"'/'"'"'~""'~;'".~'"'~ ~ Minimum 4' Separation From Groundwater. ~..~.v..[~....~..~ Minimum 200' Separation From Class A Well in the Area. ~.~\.M,C,AEL~.^"DE"SON Minimum 100' Separation From Surface Water or Streams. ~.... No. CE-,3S~ '*4~:...~..-z7-~.~' A700 MUNICIPALITY OF ANCHORAGE DEVELOPMENT SERVICES DEPARTMENT BRAGAW STREET ANCHORAGE, AK ggSIg-6050 SOILS LOG - PERCOLATION TEST LOT 16, BLOCK (:>, SCHROEDER EAST SUBDIVISION LEGAL DESCRIPTION: PERFORMED FOR: DATE: 5/27/15 PARCEL ID#: TROY DAVIS HOMES PROIECT No.: TECHNICIAN: DEPTH [ TEST HOLE 1 ] (feet) OL/OG SLOPE 1 2 3 4 5 SILTY GRAVEL 6 WITH SAND GM/SM ? 8 9 11 20¸ BOH @ 12.5' W. ROBERTS SITE PLAN SEE SITE PLAN WAS GROUND WATER ENCOUNTERED? YES IFYES~WHATDEPTH? 10.5' ~ [ DEPTH OF WATER AFTER MONITORING: I1' 20/0 DATE OF MONITORING: 5/27/2015 ~ DEPTH TO DATE ~EADING GROSS TIME NET TIME WATER NET DROF (MINUTES) (MINUTES) (INCHES) (INCHES) PERCOLATION RATE: (MIN/1NCH) PERC. HOLE DIA. (INCHES) TEST RUN BETWEEN: FT. and FT. COMMENTS: GROUND WATER MONITORING ONLY, TEST HOLE ORIGINALLY COMPLETED BY GARNESS ENGINEERING GROUP, 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: 5/27/15 / ', \',.;'/ · .Z ' '-, ~ )'- x / --" ~ I( ~PROXIMATE LOCATIO~ ~ ' : ': I ~ SERVED BY PUBLIC , ~ WATER/SEWer J ~ ~ LQT lS BLOCK 1 ~ /-- ,- ..... ........... .... ........ -... . SCHROEDER ~ST, I LOT 15, BLOCK 1 ....... GARNESS ENGINEERING GROUP, Ltd '-~ ~': !::::?:' CIVIL & ENVIRONMENTAL ENGINEERS JUDY HARTLEYI 688-5101 1 Of SCHROEDER EAST S/D; BLOCK 1, LOT 16 J.1.M. TYPE OF WORK: DATE: REVISED SITE PLAN FOR PROPOSED WELL AND SEPTIC SYSTEM 11/3/2014 GARNESS ENGINEERING GROUP, Ltd CIVIL & .ENVIRONME.NTAL ENGI.NEERS LEGAL DESCRIPTION: SCHROEDER EAST S/D; BLOCK 1, LOT 16 PERFORMED FOR: JUDY HARTLEY DATE' 8/12/2014 ORGANICS ITEST HOLE #1 I SOIL CLASSIFICATIONS LOAM (SM) SP TO SH W/ SOME GRAVEL ,~ORG ML CL OL MH CH OH SC DEPTH TO GROUNDWATER DATE 1 o' 8/I 212014 10.5' 8/14/2014 10.5' 8120/2014 SITE PLAN SCALE: GP TO SP DATE READING CLOCK NET TIME WATER LEVEL' NET DROP TIME (MINUTES) READING (INCHES) 8/14/2014 1 2:41 6" 2 3:11 30 3" 3" 3 3:11 6" 4 3:41 30 3.25" 2.75" 5 3:41 6" 6 4:11 30 3.25" 2,75" I SOILS LOGGED BY: JODY MAUS COMMENTS: .? PERCOLATION RATE 10.9 (HIN,/INCH) PERC. HOLE DIA. TEST RUN BETWEEN 4.5 FT. AND 5.5 FT, A FOUR HOUR PRESOAK WAS PERFORHED: · YES [] NO PERCOLATION TEST PERFORMED BY: JODYMAUS PERCOLATION READINGS ARE WITHIN 1/16 OF INCH. 6 (tNCHE~ PERFORMED BY GEG, Ltd. I, JEFFREY A. GARNESS, CERTIFY THAT THIS WAS PE~F/DRf,/1ED IN ACCORDANCE WITH ALL STATE AND MUNICIPAL GUIDELINES IN EFFECT ON THIS DATE: c~ it..~/t ~ GARNESSENGINEERING GROUP, Lt4 CIVIL & ENVIRONMENTAL ENGINEERS.:.-: [SOIL LOG - PERCOLATION TEST~ LEGAL DESCRIPTION: SCHROEDER EAST; BLOCK 1, LOT 16 PERFORMED FOR: JUDY HARTLE¥ ORGANICS ITEST HOLE #2 1 DATE: 08/12/2014 LOAM (SM) SP TO SM W/SOME GRAVEL GP TO SP SOIL CLASSIFICATION~S ..~;,>~':' GP ML GC GL o SW MH · SP CH SM OH SC DEPTH TO GROUNDWATER DATE 8.5' 8/I2/2014 8' 8/14/2014 8' 8/20/2014 SITE PLAN SCALE: 1"=100' SOILS LOGGED BY: JODY MAUS COMMENTS: DATE READING CLOCK NET TiME WATER LEV TIME (MINUTES) READING 8114/2014 1 6" 2 3 4 5 6 6 0" 7 6" 8 6 0" 9 6" 10 6 0" 11 6" 12 6 0" PERCOLATION RATE '1 (MIN./INCH) PERC. HOLE DIA. TEST RUN BETWEEN 3.5 FT. AND 4.5 FT. A FOUR HOUR PRESOAK WAS PERFORMED: [] YES · NO NET (INCHES) 6" 6" 6 (INCHES) PERCOLATION TEST PERFORMED BY: JODY MAUS PERCOLATION READINGS ARE WITHIN 1/16 OF INCH. *PERK DONE IN SP LENSE. RECOMMEND USING TH#2 PERK. PERFORMED BY GEG, Ltd. I, JEFFREY A. GARNESS, CERTIFY THAT THIS WAS PERFORMED N ACCORDANCE WITH ALL STATE AND MUNICIPAL GUIDELINES IN EFFECT ON THIS DATE: