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Home My WebLink AboutMOSSFLOWERWOODS LT 3UPW Lot 3 #015-141-76 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 & Wastewater System Permit Permit Number: OSP251294 Work Type: WellSeptic Initial Tax Code Number: 01514176000 Site Legal Address: MOSSFLOWERWOODS LT 3 G:2636 Site Mailing Address: Owner: COLUMBUS JOHN MICHAEL & Design Engineer: FORGE ENGINEERING This permit is for the construction of: Effective Date Expiration Date: Lot Size in Sq Ft Total Bedrooms: ;r t)cahartrnc:IIt 8/20/2025 8/20/2026 49373 Q Disposal Field R1 Septic Tank ❑ Holding Tank ❑ Privy Q Private 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. Provide notification by calling (907) 343-7904 (24/7). 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 Received By: Issued By: 4 Date: Dater MUNICIPALITY OF Development Services Department On -Site Water & Wastewater Section If 1. MILINIM-01:12 Parcel I.D. 015-141-76 Property owner(s) John Columbus & Chelsea Destefano Day phone _ Mailina address 8945 Rocky Cove Dr, Anchorage, AK 99507 Site address NHN Fireside Cir, Anchorage, AK Legal description Mossflower Woods, Lot 3 Number of Bedrooms 4 Engineering Firm Forge Engineering Building Permit Number Not Applicable ❑ APPLICATION IS FOR: APPLICATION IS AN: (Z all that apply) Absorption Field El Initial Septic Tank El Upgrade ❑ Holding Tank ❑ Renewal ❑ Privy ❑ Well THIS APPLICATION INCLUDES A WAIVER REQUEST FOR: Permit/Rush Fees: doc Date of Payment: Permit No. Waiver Fees: Date of Payment: Waiver No. Phone: 907-343-7904 Distance: August 6, 2025 MOA Development Services, On-Site Water & Wastewater Program 4700 Elmore Rd Anchorage, AK 99507 Subject: Mossflower Woods, Lot 3 – NHN Fireside Cir Septic system design Dear On-Site Services Engineer: The owner of the above lot intends to build a 4-bedroom home on the property, so we are submitting this permit application for the construction of a new well and septic system. The attached site plan identifies the location of the home as well as the proposed well, septic location and alternate site. No conflicts exist between this proposed system and any other well or septic system, whether on this lot or adjacent lots. The ground surface on the lot has a mild slope from the south to the north. There are no slopes greater than 25% within 50 feet downslope of either the primary or alternate site. Contours are shown on the site plan showing the grade and direction of flow. Stormwater drainage will not impact this septic system. The new trench will be constructed parallel to the slope as much as possible. Wells on this and adjacent lots are shown. The new system will be a minimum of 100’ from all wells and surface water, and more than 5’ away from the septic tank. The alternate site is located more than 6’ away. Please refer to the attached test hole log, plan and profile pages for the septic design. If this design is followed, there will be no adverse impacts to adjacent properties. Sincerely, Benjamin Schiller, PE Municipality of Anchorage On-site Water and Wastewater REVIEWED FOR CODE COMPLIANCE OSP251294, Curtis Townsend, 08/20/25 Benjamin Schiller CE 12592REGISTEREDPROFESSION A L E N GINEER 1"=50' CO - CLEANOUT 2CO - DOUBLE CLEANOUT FCO - FOUNDATION CLEANOUT FS - FLOW SPLITTER VALVE MH - MANHOLE MT - MONITORING TUBE SV - SEPTIC VENT TH - TEST HOLE LEGEND MOSSFLOWER WOODS, LOT 3 FEET 0 50 100 SEPTIC PLAN 8/6/25 4-BDRM HOME 10' UTILITY EASEMENT 400 405 410 MT CO MT CO MT CO MT CO FS 2CO TH#1 PROPOSED WELL 18' LONG x 5' WIDE, 2' EFFECTIVE DEPTH ABSORPTION TRENCH, ENSURE 10' SEPARATION FROM FOUNDATION & 100' FROM NEIGHBORING WELL 1250-GAL TANK, ENSURE 10' SEPARATION FROM FOUNDATION & 5' FROM TRENCHES VACANT ALTERNATE SITE SEPTIC OUTSIDE VIEWPORT SEPTIC OUTSIDE VIEWPORT SEPTIC OUTSIDE VIEWPORT 100' WELL RADIUS OUTSIDE VIEWPORT 100' WELL RADIUS OUTSIDE VIEWPORT Municipality of Anchorage On-site Water and Wastewater REVIEWED FOR CODE COMPLIANCE OSP251294, Curtis Townsend, 08/20/25 MOSSFLOWER WOODS, LOT 3 TYPICAL TRENCH SECTION (NO SCALE) NOTES: 1. GRADE AREA OVER TRENCH TO DRAIN AWAY 2. PROVIDE 3' OF COVER OVER TRENCHES AND 4' OVER SEPTIC TANK, OR 2' WITH 2" OF INSULATION 3. CHECK GROUNDWATER AT TIME OF CONSTRUCTION. IF LEVEL IS HIGHER THAN PREVIOUSLY OBSERVED, CALL ENGINEER IMMEDIATELY Benjamin Schiller CE 12592REGISTEREDPROFESSION A L E N GINEER DESIGN FACTORS:SYSTEM REQUIREMENTS: 600 GPD PEAK FLOW PERK RATE: <1 MIN/IN APPLICATION RATE: 1.0 GPD/SF 5' WIDE TRENCH SYSTEM 1250-GAL SEPTIC TANK BOTTOM OF TRENCH: 4.0' BELOW GRADE (MAX 8') FLOW LINE ELEVATION: 3.5' BELOW GRADE 600 GPD / 1.0 GPD/SF / 5' WIDE * 1.0 RED FACTOR [0.5 DEEP] = 120.0 LF TRENCH REQUIRED (120.0 LF SPECIFIED) 8/8/25 6" 5' 2' 6" 3' 4" PERFORATED PVC (HOLES DOWN) DRAINFIELD ROCK GEOTEXTILE FABRIC PROVIDE ADDITIONAL FILL TO ACCOUNT FOR SETTLEMENT MOA APPROVED SAND 6" Municipality of Anchorage On-site Water and Wastewater REVIEWED FOR CODE COMPLIANCE OSP251294, Curtis Townsend, 08/20/25 LEGAL DESCRIPTION: PERFORMED FOR: DATE: PARCEL ID#: SOILS LOG AND PERCOLATION TEST 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 DEPTH (feet) TEST HOLE 1 DATE READING NET TIME (minutes) DEPTH to WATER NET DROP PERCOLATION RATE: (MIN/INCH) (inches)(inches) DATE OF MONITORING DEPTH TO WATER AFTER MONITORING <1 7/30/25 1 2 3 4 5 6(GM) SILTY COARSE SAND w/ GRAVEL & COBBLES Professional Engineers Stamp: MOSSFLOWER WOOD, LOT 3 7/30/25 015-141-77 JOHN COLUMBUS & CHELSEA DESTEFANO 159 8 16 OB 0.1 Benjamin Schiller CE 12592REGISTEREDPROFESSION A L E N GINEER PERC TEST LOCATION TECHNICIAN: JUSTIN EARLS 165 8 16 NONE 8/6/25 COMMENTS: SITE PLAN 6 USCS SOIL CLASSIFICATION WAS VISUALLY DETERMINED 8/8/25 MOISTURE NOTED AT TIME OF DIGGING?NO 159 8 160.1 165 8 16 6 159 8 160.1 165 8 16 6 159 8 160.1 165 8 16 6 159 8 160.1 165 8 16 6 159 8 160.1 165 8 16 6 Municipality of Anchorage On-site Water and Wastewater REVIEWED FOR CODE COMPLIANCE OSP251294, Curtis Townsend, 08/20/25