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HomeMy WebLinkAboutCROSS VIEW ESTATES BLK 2 LT 30Cross View Block Lot 30 #015-221-88 Community Development Department Development Services Division On-Site Water & Wastewater Program MUNICIPALITY OF ANCHORAGeL/S/'// ((.~ Phone: 907-343-7904 Fax: 907-343-7997 ON-SITE SEWER/WELL PERMIT APPLICATION Parcel I.D. 015-221-88 Property owner(s) H2L Investments LLC Mailing address 633 East 81 st Avenue Anchorage, AK 99518 Day phone 350-1860 Site address 5004 Heritage Heights Drive Anchorage, AK 99516 Legal description (Sub'd., Block & Lot) Cross View Estates, Block 2, Lot 30- Legal description (Township, Range & Section) Lot Size. 47,610 .Sq. Ft. Number of Bedrooms Six (6) APPLICATION IS FOR: ([] all that apply) Absorption Field [] Septic Tank [] Holding Tank · [] Privy [] Private Well [] Water Storage [] APPLICATION IS AN: Initial [] Upgrade [] Renewal [] TYPE OF DWELLING: Single Family (SF) [] (w/wo ADU) Duplex (D) [] Multiple Dwellings [] (SF and/or D) THIS APPLICATION INCLUDES A VARIANCE I 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. O2 ~'~ · Fees: Date of Payment: Receipt Number: Waiver No. Permit App_9-1-12.doc August 19, 2013 Municipality of Anchorage Development Services Department On-Site Water and Wastewater Program 4700 South Bragaw Street Anchorage, AK 99519-6650 Subject: Lot 30, Block 2, Cross View Estates Subdivision Septic System Design and Permit Application Impacts to Adjacent Properties Dear Onsite Services Engineer: The owner of Lot 30, Block 2, Cross View Estates Subdivision intends to construct a new six-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 tots. No conflicts exist between the proposed septic system and well or septic systems and wells on adjacent lots. 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 hole placed on the lot during the subdivision phase in the area of the absorption trenches and alternate site indicate silty sand with gravel (SM/ML). A second test hole will be placed prior to construction to verify the soils at the location of the proposed alternate site. Results from the test will be forwarded to the City for review. The percolation rate of the soil at the existing test hole was determined to be 5 minutes per inch. No groundwater was found during the placement of the test hole and none was noted during the monitoring period. An application rate of .6 gallons per day per square foot was used in the design of the absorption system. We are proposing to place a new 2,000-gallon septic tank and 2-47' 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 2' below the surface and the total depth will be 10'. 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 30, Block 2, Cross Point Estates Subdivision August 19, 2013 Page Two The ground surface on the lot in the area of the septic system slopes to the west 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. Andemon, P.E. Attachments ~ ~ 49th LOT 30, BLOCK 2, CROSS VIEW ESTATES DESIGN FACTORS: SYSTEM REQUIREMENTS: Six Bedroom Home DeepTrench System Perc. Rate: 5 Min./Inch 2,000 Gallon Septic Tank Application Rate: .6 GPD/SF (Inconsistent Soils) 8' Drainfield Rock 6 Bedrooms X 150 GPD/.6 GPD/SF (Application Rate) = 1,500 SF Absorption Area 1,500 SF/16 SF/LF = 93.75 LF Trench Length THEREFORE: Construct 2-47' Long x 3' Wide x 8' Effective Depth Absorption Trenches at the Location Shown. Flow Line Elevation in Trench to be 2' Below Original Ground Surface. Total Depth to be 10' Below Existing Ground. Provide 4' Cover Over Septic Tank and 3' Cover Over Absorption Trench. Maintain 100' Separation from Wells in the Area. Place Flow Splitter Valve to Insure Even Flow to Each Trench. ~ (~ 4" Perforated PVC (Holes Down) Drainfield Rock TYPICAL DEEP TRENCH SECTION NOTE: Grade Area Over Trench to Dra~n Away. , ~ M~n~mum 6 Separation From Bedrock. ~...~........, .......... ~..,..2~ Minimum 4' Separation From Groundwater. ~~ Minimum 100', Separation From Wells in the Area. ~'~'"~',~'~'~ON Minimum 100 Separation From Su~ace Water or Streams- ~ ~, No c,-,~,~ SM/ML SOIL CLASSIFICATIONS ~GW ~ OR GP ML GM CL GC OL SW MM SP CH SM OH SC DEPTH TO DATE GROUNDWATER DRY 8/30/2005 DRY 9/19/2005 SEE ATTACHED SITE PLAN DATE READING CLOCK NET TIME WATER LEVEL NET DROP TIME (MINUTES) READING (INCHES) 9/1/05 1 2:00 - 6" - 2 2:,30 30 O" 6" ,3 2:30 - - 4 5 6 ,3:00 3:00 3:30 30 `3O SOILS LOGGED BY: COMMENTS: * RECOMMEND USING A 0.6 APPLICATION RATE PERFORMED BY GEO. Ltd. I, dEFFREY A. GARNESS, CERTIFY THAT THIS WAS PERFORMED WITH ALL STATE AND MUNICIPAL GUIDELINES IN EFFECT ON THIS DATE: l/')J,~,)~ ~ --~r I1~''~ PERCOLATION RATE *5 (NIN,/fNCH) PERC. HOLE DIA. (INCHES TEST RUN BETWEEN 5 FT. AND 6 FT. A FOUR HOUR PRESOAK WAS PERFORHEB: [~YES E]NO JODY MAUS PERCOLATION TEST PERFORHED BY: CALEB GALL IN ACCORDANCE UH9 CC DAL 0TY0F ' H C H 0 G Development Services Department -27Phone- 907-343-7904 On -Site Water & Wastewater Section --- Fax: 907-343-7997 Certificate of On -Site Systems Approval Parcel I.D. 015-221-88 1. GENERAL INFORMATION Expiration Date: 9-2-0- Z 2 - Complete legal description Cross View Estates Block 2 Lot 30 Location (Site address) 5004 Heritage Heights Dr, Anchorage, AK 99516 Current property owner(s) David & Carol Clemens Day phone Mailing address 5004 Heritage Heights Dr, Anchorage, AK 99516 Real estate agent Day phone 2. TYPE OF DWELLING: Q Single Family (w/wo ADU) ❑ Duplex ❑ Multiple Dwellings (Single Family and/or Duplex). 3. NUMBER OF BEDROOMS: 6 4. TYPE OF WATER SUPPLY: TYPE OF WASTEWATER DISPOSAL: Private Well Q Private Septic Q Water Storage ❑ Holding Tank ❑ Community Well ❑ Community ❑ Public Water System ❑ Public Sewer ❑ Waiver request for: Distance: Received by: COSA to be released to the engineer, unless otherwise requested by the engineer. COSA Fee $ S �� Date of Payment i!�__ Receipt Number 06 Q COSA # 0) C Date: Waiver Fee $ Date of Payment Receipt Number Waiver # 5. STATEMENT OF INSPECTION BY ENGINEER As certified by my seal affixed hereto and as of the validation date shown below, I verify that my investigation, based on procedures outlined in the Certificate of On-Site Systems Approval Guidelines for this application, shows that the on-site water supply and/or wastewater disposal system is (are) safe, functional and adequate for the number of bedrooms and type of structure indicated herein. I further verify that based on the information obtained from the Municipality of Anchorage files and from my investigation and inspection, the on-site water supply and/or wastewater disposal system is (are) in compliance with all applicable Municipal and State codes, ordinances, and regulations in effect at the time of installation. I acknowledge that On-Site staff may visit the site to verify the information submitted. Name of Firm Forge Engineering (M-J-) Phone (907) 522-7773 Address 1399 W. 34th Ave Suite 101, Anchorage, AK 99503 Engineer's Printed Name Benjamin Schiller, P.E. Date 5/6/2022 TH 6. DSD SIGNATURE /• / System #1 Approved for 6 bedrooms Benjam' jSchillerCE / System #2 Approved for bedrooms �� Qhs'• 5x/2292 fF•'•....••' Disapproved �ki,�\OFli0* � Conditional approval for bedrooms, with the following stipulations: �Iy 0FAA,_1' WATER AND WAST_VATER �^ r t� y: A'`� Original Certificate Date:'Z The Municipality of Anchorage Development Services Division (DSD) issues Certificates of On -Site Systems Approval (COSA) based only upon the representations given in paragraph 5 by an independent professional civil engineer registered in the State of Alaska. The Municipality of Anchorage is not responsible for errors or omissions in the professional engineer's work. 7. ATTACHMENTS: COSA Checklist X Nitrate Advisory Septic System Advisory Arsenic Advisory Well Flow Advisory Other COSA Checklist blue sheet Legal Description: Cross View Estates Block 2 Lot 30 If more than 1 septic system on lot: COSA Checklist # of A. WELL DATA ®❑ Well log is filed with Onsite (or attached) Date drilled 12/9/2013 Total depth 167 ft Cased to 167 ft ®❑ Sanitary seal is functioning correctly 0 Wires are properly protected Casing height (above ground) 18 in. Date of flow test for COSA 4/18/22 Static water level at beginning of test 159 ft. Comments *Flow rate limited by well pump. B. TANK DATA Age of tank(s) 8 years Tank type/material Septic/Steel Measured operating fluid level in septic tank 52 Fil Standpipes/foundation cleanout per record drawing Date of pumping 5/4/22 A+ Home Services D. ABSORPTION FIELD DATA Deep Trench Which system tested (date installed) Mar 2014 ®❑ ALL standpipes present per record drawing Total measured depth from grade *17.4/14.' ft (max) Measured depth to pipe invert from grade '8.9/3.8 ft (min) ❑ N/A — pressurized field R Monitor tubes go to bottom of effective. If not, state depth into effective ®❑ Code -required soil cover over field ❑ System presoaked (Required if vacant for greater than 30 days prior to date of test) Gallons introduced gallons Comments/Deficiencies: *East/West Trench COSA Checklist yellow sheet Parcel ID: 015-221-88 Structure served by this system Well production at time of test •6+ gpm Water storage tank volume gallons Well disinfected for coliform test? ❑ Yes ❑ No 9 Coliform bacteria is Negative Nitrate 0.721 mg/L ❑ Nitrate less than MRL (ND) Arsenic ug/L ❑Q Arsenic less than MRL (ND) Collected by Forge Engineering Date of Sample 4/27/22 STATION ❑ Requir aintenance completed Age of lift station years Lift station material Comments: Adequacy test date 4/27/22 Results 0 Pass For 6 bedrooms Fluid depth prior to test *73/61 in Water added 2000 gal New depth *94/82 in Elapsed time 1440 min Final fluid depth *75/76 in Absorption rate '900 gpd Any rejuvenation treatment (past 12 months) If yes, enter date E. SEPARATION DISTANCES From Private Well on Lot to: (Please enter distances if less than required or if community well) Septic Tank/Lift Station on Lot > 100' Q✓ Yes Community Sewer Manhole/Cleanout > 100' ft Q✓ Yes if No ft M Yes if No ft Neighboring Tank > 100' 171 Yes if No ft Private Sewer/Septic Line > 25' 0✓ Yes if No ft Absorption Field on Lot > 100' ❑✓ Yes if No ft Holding Tank > 100' n✓ Yes if No ft Neighboring Absorption Fields > 100' if No ft Animal Containment > 50' Q✓ Yes if No ft ✓0 Yes if No ft ft If septic tank is under driveway comment below Manure/Animal Excreta Storage > 100' Community Sewer Main > 75' Q✓ Yes if No ft ❑✓ Yes if No ft From Septic/Holding Tank on Lot to: (Please enter distances if less than required) Building Foundations > 10' Q✓ Yes if No ft Surface Water > 100' R Yes if No ft Property Line > 5' Yes Yes if No ft Wells on Adjacent Lots: Absorption Field > 5' Q✓ Yes if No ft Private Wells > 100' ✓C] Yes if No ft Water Main > 10'✓Q ft Yes. if No ft Community Wells > 200' P/ Yes if No ft Water Service Line > 10' Yes if No ft If septic tank is under driveway comment below From Absorption Field on Lot to: (Please enter distances if less than required) Building Foundation > 10' Yes if No ft If absorption field is under driveway comment below Property Line > 10'✓❑ Yes if No ft Wells on Adjacent Lots: Water Main > 10' Yes if No ft Private Wells > 100' 0✓ Yes if No ft Water Service Line > 10' E✓ Yes if No ft Community Wells > 200' E✓ Yes if No ft Surface Water > 100' ✓0 Yes if No ft F. ENGINEER'S COMMENTS G. ENGINEER'S CERTIFICATION I certify that 1 have determined through field inspections and review of Municipal'records that the above systems are in conformance with MOA COSA guidelines in effect on this date. COSA Checklist yellow sheet �•OF AL``il� j • Benjarr%nchiller CE 5/6/22 2 , .����w•��/e!