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Home My WebLink AboutCROSS VIEW ESTATES BLK 2 LT 12Cross View Block 2 Lot 12 #015-221-74 Permit Number: Tax Code Number: Work Type: On-Site Water & Wastewater System Permit OSP121192 01522174000 WellSeptic 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 Permit Effective Dates: July 24, 2012 to July 24, 2013 Design Engineer: ANDERSON ENGINEERING Subdivision: CROSS ViEW ESTATES Site LegalAddress: CROSS VIEW ESTATES BLK 2 LT 12 G:2737 Owner/Address: COLONY BUILDERS INC 9420 VANGUARD DR ANCHORAGE AK 995070000 Site Mailing Address: 5680 HERITAGE HEIGHTS DR, Anchorage Lot Size in Sq Ft: 49439 Total Bedrooms: 5 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 151 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:~ ,~,~..~ ,ssued.y: MUNICIPALITY OF ANCHORAGE Community Development Depadment Development Services Division On-Site Water & Wastewater Program Mayor Dan Sullivan Phone: 907-343-7904 Fax: 907-343-7997 ON-SITE SEWER/WELL PERMIT APPLICATION FOR A SINGLE FAMILY DWELLING Parcel I.D. 0'15-22'1-74 Property owner(s): Colony Builders Day phone: Mailing address: 9420 Vanguard Drive Anchorage, AK 99507 Site address: Heritage Heights Drive Anchorage, AK 99518 Legal description (Sub'd., Block & Lot): CroSS View Estates, Block 2, Lot 12 Legal description (Township, Range & Section) Lot Size: 49,439 Sq. Ft. Number of Bedrooms: Five (5) THIS APPLICATION IS FOR: {[] all that apply) Absorption Field X Septic Tank X Holding Tank [] Privy [] Pdvate Well X Water Storage [] THIS APPLICATION IS AN: Initial X Upgrade [] Renewal [] THIS APPLICATION INCLUDES A VARIANCE / WAIVER REQUEST FOR: 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. (Signature of property owner or authorized agent) Permit/Rush Fees: Date of Payment: Receipt Number: Permit No. Waiver Fees: Date of Payment: Receipt Number: Waiver No. C:~Users~AndEng~Desktop\Mike~Cross View Estates\Permit Application Lot 12 Colony.docC:~Users~AndEng\Desktop~Mike~Cross View Estates~Perrnit Application Lot 12 Colony.doc July 11, 2012 Municipality of Anchorage Development Services Department On-Site Water and Wastewater Program 4700 South Bragaw Street Anchorage, AK 99519-6650 Su~e~: Lot 12, Block 2, Cross View Estates Subdivision Septic System Design and Permit Application Impacts to Adjacent Properties Dear Onsite Services Engineer: The owner of Lot 12, Block 2, Cross View Estates Subdivision intends to construct a new five-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 in the area and septic systems on surrounding lots. No conflicts exist between the proposed septic system and well or septic systems and wells on adjacent lots. 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 trenches and alternate site indicate silty sand with gravel (SM/ML). The percolation rate of the soil was determined to be 31 to 60 minutes per inch. No groundwater was found during the placement of the test holes and none was noted during the monitoring period. An application rate of .~,5 gallorl~-'p~r-day per squa~b-fO~t was us~-d-'ih~the design dt'~i~tion ~stem~ .... We are proposing to place a new 1,500-gallon septic tank and 2-54, long by 3' wide by 8' effective depth absorption trenches to treat and dispose of the effluent generated in the house. The elevation of the distribution line in the absorption trench will be 4' below the surface and the total depth will be 12'. A flow splitter valve will be placed to insure even flow to each trench. 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 northwest Lot 12, Block 2, Cross Point Estates Subdivision July 11, 2012 Page Two at a shallow grade with some cross sloping from the east. The new trenches 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 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: 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 CROSS 10' STORM DRAIN ESMT. "] 20' GAS ESMT. z 5' WALKWAY ESMT. " ALTERNATE SITE ~xJventex Treatment System with 40' Long x S' Wide x 8' Effective Depth Absorption Trench. (1 GPD/SF) LEGEND MT - Monitor Tube MH - Man Hole FCO - Foundation Clean Out TH - Test Hole CO - Clean Out PLAT NO. 2006-171 VIEW ESTATES SUBDIVISION LOT 12, BLOCK 2 49,615 S.F. HERITAGE HEIGHTS DRIVE N 89'27'47"E 148.85' Proposed Well A.C. DRIVE Four Bedroom / SV ~ Septic Tank #/ x 8' Effect,~ Depth 20' STORM DRAIN ESMT. 10' T. A E. ESMT. N 89'4~'56"E 166.85' NOTE: No Areas of Excessive Slope or Sun'ace Water ore Within 100' of Any Par[ of the New Septic System. No Wells or Wastewater Systems on Adjacent Lots Conflict with the Proposed Septic System. SITE PLAN SCALE 1' = 50' R=220.00' ?8.00' ~ LOT 12, BLOCK 2, CROSS VIEW ESTATES SUBDIVISION DESIGN FACTORS: SYSTEM REQUIREMENTS: Five Bedroom Home Deep Trench System Perc. Rate: 30-60 Min./Inch 1,500 Gallon Septic Tank Application Rate: .45 GPD/SF 8' Drainfield Rock 5 Bedrooms X 150 GPD/.45 GPD/SF (Application Rate) = 1,666.7 SF Absorption Area 1,666.7 SF/16 SF/LF = 104.17 LF Trench Length THEREFORE: Construct 2-54' Long x 3' Wide x 8' Effective Depth Absorption Trenches at the Location Shown. Flew Line Elevation in the Trenches to be 4' Below Original Ground. Total Depth to Be 12' Below Existing Ground. Provide 4' of Cover Over Septic Tank and a Minimum of 3' Cover Over Absorpiton Trenches. Maintain 100' Separation from Wells in the Area. Place Flow Splitter Valve to insure Even Flow to Each Trench. Natural Backfill Geotextile Fabric 6" (~) 4" Perforated PVC (Holes Down) Drainfield Rock TYPICAL DEEP TRENCH SECTION -- (NO SCALE) ~,.~.~....U~'.,....~ NOTE: Grade Area Over Trench to Drain Away. ~!'"" Minimum 6' Separation From Bedrock. ~....~.~,....4..9,t.h......~..~...~.~ Minimum 4' Separation From Groundwater. ~_ ~ M n mum 100' Separation From Wells in the Area ~"~,'? ' '~'~'~";;,;~'~;;-~'" '? ~.' ~ Minimum 100' Separation From Surface Water or'Straams: ~?,--~'-,, No &700 DEPTH (feet) 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: PERFORMED FOR: DATE: 7/11/2012 PARCEL ID#: OB/OG SILTY SAND WITH GRAVEL SM/ML BOH @ 18' LOT 12, BLOCK 2~ CRoss VIEW ESTATES SUB. COLONY BUILDERS PROJECT No.: TECHNICIAN:. J- BERKRAM SLOPE WAS GROUND WATER ENCOUNTERED? NO IF YES ~ WHAT DEPTHS__'r~S ~ DEPTH OF WATER AFTER MONITORING: NONE - E 2°/0 DATE OF MONITORING: 7'~'~/2~12 ~ SITE PLAN SEE SITE PLAN DEPTH TO DATE READING GROSS TIME NET TIME WATER NET DROP (MINUTES) (MINUTES) (INCHES) (INCHES) TEST HOLE PRESOAKED PRIOR TO TESTING: 7/11 1 10:30 6.25" 2 11:00 3'0 7.25" 2.18" 3 11:01 6.00" 4 11:31 30 6.88" .88" 5 11:32 5.75" 6 12:02 30 6.63" .88" PERCOLATION RATE: 34 (MIN/INCH) PERC. HOLE DIA. 10"(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 MUNICIPLE GUIDELINES IN EFFECT ON THIS DATE:_ 7/11/7012 4700 MUNICIPALITY OF ANCHORAGE DEVELOPHENT SERVICES DEPARTMENT BRAGAW STREET ANCHORAGE, AK 90519-6650 SOILS LOG - PERCOLATION TEST LEGAL DESCRIPTION: PERFORMED FOR: DATE: 7/11/2.012~ PARCEL ID#: DEPTH (feet) OB/OG 1 2 3 4 5 6-- 7-- 8-- 9-- 10T 12., BLOCK 2, CROSS VIEW ESTATES SUB. 11 20 COLONY BUILDERS PROJECT No.: TECHNICIAN: SILTY SAND WITH GRAVEL SH/HL BOH @ 18' J. BERKRAM ..-. Professional Engineers Stamp: SLOPE SITE PLAN SEE SITE PLAN WAS GROUND WATER ENCOUNTERED? NO DEPTH OF WATER AFTER MONITORING: NONE · 2%-- .-- DEPTH TO DATE READING GROSS TIHE NET TIME WATER NET DROP (MINUTES) (MINUTES) (INCHES) (INCHES) TEST HOLE PRESOAKED PRIOR TO TESTING: 7/11 1 10:50 6.50" 2 11:20 30 7.00" .50" 3 11:21 5.50" 4 11:51 30 6.00" .50" 5 11:52 3.50" 6 12:22 30 4.00" .50" PERCOLATION RATE: 60 .(MIN/INCH) PERC. HOLE DIA. 9" (n'4CHES) 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 1N ACCORDANCE WITH ALL STATE AND MUNICIPLE GUIDELINES IN EFFECT ON THIS DATE: 7/11/2012