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HomeMy WebLinkAboutT16N R1E SEC 28 N2NE4NE4 T16N R1E SEC 28 N2NE4NE4 #052-331-05 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: OSP251256 Work Type: WellSeptic Initial Tax Code Number: 05233105000 Site Legal Address: T16N R1 E SEC 28 N2NE4NE4 G:1905 Site Mailing Address: 32551 EKLUTNA LAKE RD, Chugiak Owner: ANDERSEN JOHN Design Engineer: FORGE ENGINEERING This permit is for the construction of: Effective Date: Expiration Date Lot Size in Sq Ft: Total Bedrooms: 7/30/2025 7/30/2026 871200 Z Disposal Field Z Septic Tank ❑ Holding Tank ❑ Privy Z 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: Date: Issued By: Date: _ '2 c -y 4 ON -SITE SEPTIC/WELL PERMIT APPLICATION Parcel I.D. 052-331-05 Property owner(s) John Anderson Day phone Mailing address400 W 76th Ave Apt 104, Anchorage, AK 99518 Site address32551 Eklutna Lake Rd Legal description T1 6N R1 E SEC 28 N2NE4NE4 q Number of Bedrooms S Engineering Firm Forge Engineering Building Permit Number R25-2619 Not Applicable n APPLICATION IS FOR: APPLICATION IS AN: (Z all that apply) Absorption Field M Initial El Septic Tank 0 Upgrade n Holding Tank ❑ Renewal El Privy ❑ Well THIS APPLICATION INCLUDES A WAIVER REQUEST FOR: '30 Permit/Rush Fees: ? Date of Payment: Permit No. C) Waiver Fees: Date of Payment: Waiver No. Distance: July 15, 2025 MOA Development Services, On-Site Water & Wastewater Program 4700 Elmore Rd Anchorage, AK 99507 Subject: T16N R1E SEC 28 N2NE4NE4 - 32551 Eklutna Lake Rd Septic system design Dear On-Site Services Engineer: The owner of the above lot intends to build a 3-bedroom home on the property, so we are submitting this permit application for the construction of a new well and septic system. To be conservative the proposed system is sized for 4-bedrooms. 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 slopes steeply from the north to the south. The slopes are fairly uniform, between 25-40%, although there is a slightly flatter area where the house is proposed. While there are slopes greater than 25% in the immediate vicinity of the septic trenches, there are no slopes greater than 46%, and the attached steep slopes profile show that there will be no daylighting of effluent from the trenches. 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 logs, 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 OSP251256, Curtis Townsend, 07/30/25 CO - CLEANOUT 2CO - DOUBLE CLEANOUT FCO - FOUNDATION CLEANOUT FD - FLOW DIVERTER VALVE MH - MANHOLE MT - MONITORING TUBE SV - SEPTIC VENT TH - TEST HOLE LEGEND 1"=50' T16N R1E SEC 28 N2NE4NE4 FEET 0 50 100Benjamin Schiller CE 12592REGISTEREDPROFESSION A L E N GINEER 7/11/25 SEPTIC PLAN 3-BDRM HOME TH-1 TH-2 PROPOSED WELL, ENSURE 100' FROM ALL SEPTIC 1300 1305 1310 1315 1325 1330 1335 1340 1345 1350 1355 1360 1365 1370 1295 1290 1320 1250-GAL SEPTIC TANK, ENSURE 5' FROM DECK (2) 70' LONG X 5' WIDE, 2' EFFECTIVE DEPTH TRENCHES, ENSURE 10' FROM FOUNDATION FCO CO COCO CO MT MT MT MT FS 2CO ALTERNATE SITE CAT III 25' X 5', 0.5' EFFECTIVE DEPTH Municipality of Anchorage On-site Water and Wastewater REVIEWED FOR CODE COMPLIANCE OSP251256, Curtis Townsend, 07/30/25 T16N R1E SEC 28 N2NE4NE4 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: 20 MIN/IN APPLICATION RATE: 0.6 GPD/SF 5' WIDE TRENCH SYSTEM 1250-GAL SEPTIC TANK BOTTOM OF TRENCH: 6.0' BELOW GRADE FLOW LINE ELEVATION: 4.0' BELOW GRADE 600 GPD / 0.6 GPD/SF / 5' WIDE * 0.7 RED FACTOR [2.0 DEEP] = 140 LF TRENCH REQUIRED (140 LF SPECIFIED) 7/11/25 2' 6" 3'-6" 4" PERFORATED PVC (HOLES DOWN) DRAINFIELD ROCK GEOTEXTILE FABRIC PROVIDE ADDITIONAL FILL TO ACCOUNT FOR SETTLEMENT Municipality of Anchorage On-site Water and Wastewater REVIEWED FOR CODE COMPLIANCE OSP251256, Curtis Townsend, 07/30/25 1305.00 1310.00 1315.00 1320.00 1325.00 1330.00 1335.00 1340.00 1345.00 1350.00 1355.00 1305.00 1310.00 1320.00 1330.00 1340.00 1350.00 0+00.00 0+50.00 0+90.00 1"=10' SLOPE CROSS SECTION SEPTIC TRENCHES Benjamin Schiller CE 12592REGISTEREDPROFESSION A L E N GINEER 46% AN G L E OF EF FLUE N T INFL UE N C E 2:1 MAX SLOPES 6.0 FEET 0 10 20 7/14/25 T16N R1E SEC 28 N2NE4NE4 ALTERNATE SITE Municipality of Anchorage On-site Water and Wastewater REVIEWED FOR CODE COMPLIANCE OSP251256, Curtis Townsend, 07/30/25 �FtCTE/?Rq AizcT ExuA CONSULTING, INC 20441 Ptarmigan, Eagle River,AK 99577 ` ap Office (907) 696-6111, Fax (907) 868-3793 N AK. sOSY'f.� SOILS PERCOLATION TEST Performed for: John Anderson Project. T16N R1E Sec 28 N2NE4NE4 Depth 1 _ 0'-1.5' Org 2- 1.5'-2.5' GM 4-1 1 - Pere Bench #1 @3.5' 5- I I 2.5'-12' SW 7- 8- 9- 10- ]I- 12-1 13- 14- 15- 16- 17- 18- B.O.H. 12 19- i �� � ��TH 3 �i KENNETH M. L 1 �i 1 t 6 ` Date Performed: 3/21/25 TEST HOLE # TH - 1 SEE ATTACHED SITE PLAN FOR HOLE LOCATION Was Ground water encountered? No What depth? NA Depth to water after monitoring? None Date 3/28/25 (Depth below grade) Reading Date Gross Time Net Time Depth to Water Net Drop 1 3/21/25 2:00 10/16" 2 2:30 30 Min 2 8/16" 1 8/16" 3 * 3:00 30 Min 4 0/16" 1 8/16" 4 3:00 1 016" 5 * 3:30 30 Min 2 8/16" 1 8/16" 6 7 8 9 10 11 12 * Water Added Percolation Rate 20 (min/in) Pere Hole Diameter 6 " Test Run Between 3.5 feet and 4 feet I, Kenneth M. Duffus, certify that this test was performed in accordance with all State and Municipal guidelines in effect on this date. .00 o �jtcTRRq r OF A CONSULTING, INC 20441 Ptarmigan, Eagle River,AK 99577 4 9 TH - Office (907) 696-6111, Fax (907) 868-3793 j ~crarytr'N3Ll' r NG ' '• AK. 9VSTr- KENNETH lYt, i] iP' / 11. _ 7116 SOILS PERCOLATION TEST , �"Ilk `-ft. 4p' Performed for: John Anderson Project: T16N R1E Sec 28 N2NE4NE4 Depth (Feet) 1-0'-1.5' Org 2- 3- - Pere Bench #1 @3' 4- 5- 1.5'-15' GW/GP 6- 7- 8- 9- 10- 11- 12- 13- 14- 15- 16- 17- 18- B.O.H.15' 19- Date Performed: 3/21/25 TEST HOLE # TH - 2 SEE ATTACHED SITE PLAN FOR HOLE LOCATION Was Ground water encountered? No What depth? NA Depth to water after monitoring? None Date 3/28/25 (Depth below grade) Reading Date Gross Time Net Time Depth to Water Net Drop 1 3/21/25 2:20 12/16" 2 2:25 5 Min 7 2/16" 6" 3 * 2:25 12/16" 4 2:30 5 Min 7 2/16" 6" 5 * 2:30 12/16" 6 2:35 5 Min 7 2/16" 6" 7 * 2:35 12/16" 8 2:40 5 Min 7 2/169' 6" 9 * 2:40 1 2/16" 10 2:45 5 Min 7 2/16" 6" 11 * 2:45 12/16" 12 2:50 5 Min 7 2/16" 6" * Water Added Percolation Rate 0.8 (min/in) Perc Hole Diameter 6 " Test Run Between 3 feet and 3.5 feet I, Kenneth M. Duffus, certify that this test was performed in accordance with all State and Municipal guidelines in effect on this date. o 1 O O mom I o ^ o o il? 3"E , a a � z�zk zt�x Q 0 a n O Z r i n a a I � 2 2 2 2 a � ro V Z oIt. 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