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HomeMy WebLinkAboutTHURMAN DRIVE LT 2Onsite File THURMAN DRIVE Lot 2 #012-052-50 MUNICIPALITY OF ANCHORAGE On -Site Water & Wastewater Program PO Box 196650 4700 Elmore Road Anchorage, Alaska 99519-6650 Phone: (907) 343-7904 Fax: (907) 343-7997 http://www,muni.org/onsite On -Site Water System Permit Permit Number: OSP261010 Work Type: Well Initial Tax Code Number: 01205250000 Site Legal Address: THURMAN DRIVE LT 2 G:2026 Site Mailing Address: 6332 THURMAN DR, DUPL, Anchorage Owner: SAUERS GREGORY & CHANDRA Design Engineer: FROSTED GROUND ENGINEERING SSERVICES LLC This permit is for the construction of: Effective Date: Expiration Date: Lot Size in Sq Ft Total Bedrooms: 2/18/2026 2/18/2027 11649 Non -Public ❑ Disposal Field ❑ Septic Tank ❑ Holding Tank ❑ Privy © Water Well ❑ Water Storage All construction shall 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 shall notify the Development Services Department per AMC 15.65. Coodinate with On -Site staff regarding preferred method. 4. From October 15 to April 15, a subsurface soil absorption system under construction during freezing weather shall be either: a. Opened and Closed on the same day, or b. Covered, sealed, and heated to prevent freezing Issued To: FROSTED GROUND ENGINEERING SSERVICES LLC Issued By: Isatou B Njie Date: 4/17/2026 Date: 4/17/2026 H; MUNICIPALITY OF ANCHORAGE Development Services Department Phone: 907-343-7904 On -Site Water & Wastewater Section ON-SITE SEPTIC/WELL PERMIT APPLICATION Parcel I.D. 01205250000 Property owner(s) Gregory & Chandra Sauers Day phone 801-584-9535 Mailing address _ �,<?- '9AA Site address 6360 Thurman Drive Legal description THURMAN DRIVE LT 2 Number of Bedrooms y Engineering Firm Frosted Ground Engineering Services Building Permit Number Not Applicable ❑ APPLICATION IS FOR: APPLICATION IS AN: (® all that apply) Disposal Field ❑ Initial [] Septic Tank ❑ Upgrade ❑ Holding Tank ❑ Renewal ❑ Privy ❑ Well E Water Storage ❑ THIS APPLICATION INCLUDES A WAIVER REQUEST FOR: Permit/Rush Fees: Z Date of Payment: % G% Z- � r Permit No. O S 2 (�0 ( 0 May 2025 Waiver Fees: Date of Payment: Waiver No. Distance: Frosted Ground Engineering Services, LLC Project No. P20251002 MOA Development Services, On -Site Water & Wastewater Program 4700 Elmore Road Anchorage, AK 99507 Thurman Drive Lot 2 — Well Horizontal Separation Waiver Request To whom it may concern, The owner of the aforementioned lot is looking to construct a single-family home and needs a private well installed on the lot. Due to the location of the sewer main and stormwater main, there is no location on the lot that is greater than 100 ft from both of these components simultaneously, which is required and as is summarized per MOA 15.55.060 Table A-1. The following analysis and requirements will ensure that the well is not at risk for contamination from these sources: 1. The perspective location of the well, as shown on the site plan, is approximately 100+ feet away from the sewer main and -74 ft away from the stormwater main, based on publicly available information and as -built information collected by Timberline Surveying. The well site location was evaluated using criteria outlined in the District Office Engineers memo dated January 3, 1985, Subject: Separation Distance Waiver Guidelines for SCRO. The values selected for this analysis are from the actual conditions found based on the Well log from Thurman Drive Lot 1, and are presented in the document titled Thurman Drive Lot 2 Separation Calculations. They need to be updated after the well has been drilled to confirm values. 2. The well casing should be sealed with bentonite from ground surface to at least a minimum of 20 feet below ground surface and have a sanitary seal installed. 3. The in a minimum 10 -foot radius around the well should be mounded and graded away to prevent surface infiltration. The general drainage of the lot (based on the 2015 MOA LI DAR survey) is nearly flat, ranging from 0% to less than 1 % grade. 4. The stormwater drain appears to serve a relatively confined area, primarily receiving surface water drainage from Thurman Drive towards Jewel Lake. The line also appears to have been constructed in the last few years, so it is unlikely that the line is compromised. The line was constructed with CPEP material, that is known for having a long shelf life and low risk of dangerous leakage. Granting this waiver should not cause any eminent health hazard concerns or adverse effects to the homeowners or neighboring lots. If there are any F questions, comments, or concerns, please do not hesitate to AW, contact via phone: (907) 398-5272 or email: Eli@fg-eng.com, Avo'-- ••' y*}� TH •4,9 Sincerely, %. ....... .. .. Eli D. Ward, PE ELI D WARD Principal Engineer CE 105859 '�'``w..i� Page 11 of 1 Lot Location: Water Table: Soil Absorption Casing Stick up Overburden Silt & Clay W Gravel Silt & Sand Tight Sand & Gravel Silt & Sand Heaving Silt & Sand Sand & Gravel Pemeability Casing Stick up Overburden Silt & Clay W Gravel Silt & Sand Tight Sand & Gravel Silt & Sand Heaving Silt & Sand Sand & Gravel Thurman Drive Subdivision Lot 2 Stormwater Line Cased Depth to water Sewer depth (est.): Distance: DEC Points 0 DEC Points 1.5 2.5 2.5 2.5 2.5 2.5 1.5 0 0.9 2 2 2 2 2 1.5 180 Point Value 10 2 170 7.37 Depth Start Depth End Thickness (ft) Weighted Points 0 2 2 N/A 2 2 4 2 0.02 4 13 9 0.13 13 41 28 0.39 41 89 48 0.67 89 104 15 0.21 104 170 66 0.92 170 180 10 0.08 Depth Start Depth End 0 2 2 4 4 13 13 41 41 89 89 104 104 170 170 180 1801 2.411 Thickness (ft) Weighted Points 2 N/A 2 0.01 9 0.10 28 0.31 48 0.53 15 0.17 66 0.73 10 _0.08 180— 1.94 Water Table Gradient Water Elev.Change: 120 Distance: 74 Approximately Gradient -162% Sloping towards water source, ASSUMED WORST CASE Horizontal Separation (ft) 74 1.96 Total Points: 13.67 Per SOA Technical Memorandum, Subject Separation Distance Waiver Guidelines for SCRO dated January 3, 1985, a point value between 12 and 16 would indicate that no baterological pollution is possible. Chemical pollution or viral pollution may be possible but is unlikely. Municipalityof Anchorage P.O. Box 196650 4700 Elmore Road Anchorage, Alaska 99519-6650 0 (907) 343-7904 0 Fax (907) 343-7997 hftp://www.muni.org/Onsite On-SiteDevelopment Services Division .. • Wastewater Program * * * * VARIANCE/WAIVER REVIEW Waiver#: OSV261014 COSA#: Permit#:OSP261010 PID#: 012-052-50 Legal Description: THURMAN DRIVE LT 2 Engineer: Frosted Ground Engineering Services. LLC Your request for a waiver of the required 100 feet horizontal separation from the stormwater line to the private well has been approved. The approved separation distance is 74 feet. See engineer's waiver request for justifications. This waiver approval applies to the proposed well and stormwater line only. Any future upgrade to the on-site wastewater disposal system will require all separation distances be met or another approval from this department. ............................................................................... Waiver is Granted: X Waiver is not Granted: 4/17/2026 Date: Approved by: Werre of Reviewr .... ......................................................................... **** VARIAN C E/WAIVER REVIEW **** JE W E L L A K E R O A D T H U R M A N D R I V E PARCEL BOUNDARY, TYP. 87.7 ' 59.8 ' 5 9 . 6 ' 109 . 3 ' THURMAN DRIVE LOT 1 THURMAN DRIVE LOT 3 EASEMENT STREET CENTERLINE, TYP. HI G H P L A C E 74 . 1 ' S W CB S W SW SW SW SW SW S S SD M H SDMH SSMH SSMH SDMH S S S S S S S S S S S S S S S S R25 ' CO CO WW R 5 0 ' R 1 5 0 ' R 1 0 0 ' POTENTIAL WELL LOCATION (GRADE TO DRAIN AWAY FROM WELL, MIN. 10' RADIUS) POTENTIAL BUILDING FOOTPRINT(S) SEWER MAIN PROJECT: SHEET TITLE: DESIGNED BY: C:\USERS\AKEDW\ONEDRIVE\DESKTOP\FGES\PROJECTS\20251002 - MOA THRUMAN DRIVE WELL WAIVER\02 - DRAWINGS\THRUMAN SITE PLAN.DWG PUBLISHED CTBDRAWING LOCATION DATE TIME SCALE SHEET OF YEAR PROJ. NO. AS NOTED CHECKED BY: DRAFTED BY: CLIENT: FGES_2025 LOT LEGAL DESCRIPTION: ELI D. WARD CE 105859R E GISTEREDPROFES S I O N A L E N GINEER April 15, 2026 4/15/2026 5:54 PM 01 EDW EDW EDW 01 2026 20251002 THURMAN DRIVE LOT 2 CHANDRA AND GREGORY SAUERS THRUMAN DRIVE WELL PLACEMENT VICINITY MAP ALL STRUCTURES, WELLS, AND SEPTIC SYSTEM FEATURES ON ADJACENT PROPERTIES ARE BASED ON PUBLICLY AVAILABLE INFORMATION OBTAINED FROM MOA RECORDS AND/OR AS-BUILT SURVEYS. (FEET) 0 25 50 100 NOTES: ALL WELLS MUST BE INSTALLED IN ACCORDANCE WITH THE STANDARD PROVISIONS IN MOA 15.55 AND 18 AAC 80. STORMWATER LINE