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Home My WebLink AboutCROSS VIEW ESTATES BLK 1 LT 21Cross View Estates Block 1 Lot 21 #015-221-52 Permit Number: Tax Code Number: Work Type: On-Site Water & Wastewater System Permit OSP151068 01522152000 WelISeptic 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: April 07, 2015 to April 06, 2016 Design Engineer: ANDERSON ENGINEERING Subdivision: CROSS VIEW ESTATES Site Legal Address: CROSS VIEW ESTATES BLK 1 LT 21 G:2737 Owner/Address: COLONY BUILDERS INC 9420 VANGUARD DR #A ANCHORAGE AK 995070000 · Department Site Mailing Address: Lot Size in Sq Ft: 50119 Total Bedrooms: 5 This permit is for the construction of: Y Disposal Field Y SepticTank 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 Aia~ka 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 aSsorption system under construction during freezing weather must either: A. Open and Close on the same day. B. Covered, sealed, and heated to prevent freezing. IsSued By~--~l~ ~ ! MUNICIPALITY OF ANCHORAGE Community Development Department Development Services Division On-Site Water & Wastewater Program ON-SITE SEWER/VVELL PERMIT APPLICATION Phone: 9~-343-7904 Fax: 907;~3-7997 Parcel I.D. 015-221-52 Property owner(s) Colony Builders Day phone Mailing address 9420 Vanguard Drive #A Anchorage, AK 99507 Site address NHN Heritage Heights Drive Anchorage, AK 99516 Legal description (Sub'd., Block & Lot) Cross View Estates, Block 1, Lot 21 Legal description (Township, Range & Section) Lot Size 50,119 Sq. Ft. Number of Bedrooms Five (5) APPLICATION IS FOR: APPLICATION IS AN: TYPE OF DWELLING: ([~ all that apply) Absorption Field [] Initial [] Single Family (SF) [] (w/wo ADD) 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: ~,~-~./~' Date of Payment: Receipt Number: Permit No. Waiver Fees: Date of Payment: Receipt Number: Waiver No. Permit App_9-1-12.doc April 6, 2015 Municipality of Anchorage Development Services Department On-Site Water and Wastewater program 4700 South Bragaw Street Anchorage, AK 99519-6650 Su~e~: Lot 21, Block 1, Cross View Estates Subdivision Septic System Design and Permit Application Impacts to Adjacent Properties Dear Onsite Services Engineer: The owner of Lot 21, Block 1, 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/GM). The percolation rate of the soil was determined to be 48 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 .45 gallons per day per square foot was used in the design of the absorption system. 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. Lot 21, Block 1, Cross pOint Estates Subdivision April 6, 2015 Page Two The ground surface on the lot in the area of the septic system slopes to the nodhwest 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 ~ ~;'" - ~ 49th LOT 21, BLOCK 5 SKY RANCH NO. 1 LOT '18, BLOCK 1 /r___"_'_~_~__7____ I Vacant ' ] --~-'" LOT 16, BLOC~~ LOT 14, BLOCK 2/ ~LOT 13, BLOCK~ ===================================== .............................................................. (5_~_~2~_~_( .... [~~:~' "~" "'~ AREA HAP PLAT NO. 2006-171 CROSS VIEW ESTATES SUB. LOT 21, BLOCK 50,119 S.F. 20' X 40' GAS ESMT. '1 Proposed Well ® N 89'47'40"E 163.06' 10' T. & E. ESMT. 5' WALKWAY ESMT. ALTERNATE SITE Advontex Treotment System with 40' Long x .3' Wide x Effective Depth Absorption Trench, (1 GPD/SF) 2-54' Long x 3' Wde M~F~V x 8' Effective Depth CO'~ Absorption Trenches SV 1,500 Gollon Z N 89'27'47"E 20' STORM DRA~ ESMT. 165.~7' HERITAGE HEIGHTS DRIVE SITE PLAN SCALE i' = 40' LOT 21, BLOCK 1, CROSS VIEW ESTATES SUBDIVISION DESIGN FACTORS: SYSTEM REQUIREMENTS: Five Bedroom Home Deep Trench System Parc. 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. Flow Line Elevation in the Trenches to be 4' Betow 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' Separatibn from Wells in the Area. Place Flow Splitter Valve to Insure Even Flow to Each Trench. Natural Backf Geotextile -- Fabric ~ O 4" Perforated I~VC (Holes Down) Drainfield .Rock TYPICAL DEEp TRENCH SECTION (NO SCALE) Awe ~' ......... '"?"~'~- NOTE: Grade Area Over Trench to Drain y. · Minimum 6: Separation From Bedrock. ~'~-"4"~'n'"'y/'"~.":'~.¢"'";~'l Minimum 4 S,eparation From Groundwater. ~.~ Minimum 100 Separation From Wells in the Area. &.~\ M~C~ELE.^NDERSO" Minimum 100' Separation From Surface Water or Streams. ",~o... MUNICIPALITY OF ANCHORAGE DEVELOPMENT SERVICES DEPARTMENT Z+700 BRAGAW STREET ANCHORAGE, AK @9519-6650 SOILS LOG - PERCOLATION TEST DEPTH 1 2 3 4-- 5-- 6 7 8 9 11 19 20. PERFORMED FOR: DATE: 5/24/15 PARCEL ID#: LEGAL DESCRIPTION: LOT 21, BLOCK I, CROSS VIEW ESTATES SUBDIVISION L. BETTS C..OLONY BUILDERS PROIECT No.: TECHNICIAN: I TEST HOLE OB/OG SILTY SAND WITH GRAVEL SM/GM WAS GROUND WATER ENCOUNTERED? IF YES ~ WHAT DEl'THo DEPTH OF WATER AFTER MONITORING: NONE DATE OF MONITORING: ;LOPE No BOH @ 18' SITE PLAN SEE SITE PLAN DEPTH TO DATE READINO GROSS TIHE NET TildE WATER NET DROP (MINUTES) (MINUTES) (INCHES) (INCHES) TEST HOLE PRESOAKED PRIOR TO TESTING: 3/26 1 2:14 1.25" 2 2:34 30 2.00" .75" 3 2:35 1.375" 4 3:05 30 2.00" .625" 5 3:06 1.25" 6 3:36 30 1.875" .625" PERCOLATION RATE:48 (MIN/INCH) PERC. HOLE DIA. 6" _(INCHES) TEST RUN BETWEEN[ 4.5 FT. and. 5.5 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: 4/6115 4700 DEPTH 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: LOT 21, BLOCK I, CROSS VIEW ESTATES SUBDIVISION PERFORMED FOR: DATE: 5/24/15 PARCEL ID#: COLONY BtJILDERS ?ROJECT No.: TECHNICIAN: OB/OG WAS GROUND WATER ENCOUNTERED? IF YES @ WHAT DEPTHV DEPTH OF WATER AFTER MONITORING: SILTY SAND WITH GRAVEL SM/GM L. BETTS i~% HICHC, CL E. ANDERSD ,,,o. cc-,,,,, ....:¢,," Professional Engineers Stamp: BOH @ 16' SLOPE No SITE PLAN SEE SITE PLAN DATE OF MONITORING: 4/6/15 ~ ~ DEPTH TO DATE READING ;ROSS TIME NET TIME WATER ',lET DROP (idlNUTES) (MINUTES) (INCHES) (INCHES) TEST HOLE PRESOAKED PRIOR TO TESTING: 3/26 1 2:25 2.375" 2 2:55 30 3.375" 1.00" 3 2:56 2.50" 4 3:26 30 3.50" 1.00" 5 3:27 2.25" 6 3:57 30 3.25" 1.00" PERCOLATION RATE: 30 .(NIH/INCH) PERC. HOLE DIA. 6" .(INCHES) TEST RUN BETWEENi 4.5 FT. and 5.5 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: 416115