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HomeMy WebLinkAboutT15N R1W SEC 8 LT 11515N RIW SEC 8 Lot 115 #051 - 151 - 16 (Rev 05/02/18) Municipality of Anchorage On -Site Water and Wastewater Section • (907) 343-7904 Page 1 of 3 ON-SITE WASTEWATER INSPECTION REPORT Permit Number: OSP251105 PID Number: 051-151-16 Dwelling: 0 Single Family (SF) ❑ with ADU ❑ Duplex (D) ❑ Two Single Family Project: M New ❑ Upgrade Name Timothy &Debby Oaks ABSORPTION FIELD El Deep Trench ❑� Wide Trench ❑Bed El Mound Site Address' 20231 Crabtree St ❑ Other Phone Number of Bedrooms Soil Rating Total depth from original grade 3 1.0 GPD/SF 0.5 Ft. LEGAL DESCRIPTION Depth to pipe invert from original grade 0.0 Ft. Gravel depth beneath pipe 0.5Ft. Subdivision Block Lot 115 Fill added above original grade 5.6 Ft. Gravel length 90.0 Ft. Township Range Section 15N 1W 8 Gravel width 5.0 Ft. Beds: Number of Lines N/A Distance between lines N/A Ft. SEPARATION DISTANCES To Septic Absorption Lift Station Holding Sewer Total absorption area Number of trenches 2 Dist. between trenches >6.0 From Tank Field Tank Line 450 Ft2 Ft. Well >100' >100' N/A N/A >25 TANK F21 Septic ❑ S.T.E.P. ❑ Holding ❑ Other Manufacturer Greer Capacity 1000 Gal. Surface Water >100' >100' N/A N/A Material Plastic Number of compartments 2 Lot Line >5' >10' N/A N/A NA Foundation >10' >10' N/A N/A VFTTATION Manufacturer Capacity Remarks Tank rated for 10' burial Gal. Alarm location Electri tailed by PIPE MATERIAL House to tank D3034 drainfieldTank to D3034 Installer Little Dipper Drainfield D3034 CO/MTD3034 Inspector Justin Earls BENCH MARK (Assumed elevation) 100 ft Inspection 15t 6/17/25 7/14/25 Location and description dates: 2 nd Bottom of siding SE corner 3rd 4th ON-SITE WATER AND WASTEWATER SECTION APPROVAL Engineer's Stamp Conditional Approval: Date a Septic System .' Benjarr"n4Schiller F``• CE 12592 Approved. Date 3/06/2026�r��. , .1/15/25 , •G ,o Note: this approval does not include well permit requirements. (Rev 05/02/18) ALTERNATE SITE CAT III, 20' X 5', 0.5' EFFECTIVE DEPTH TRENCH Benjamin Schiller CE 12592 R E G ISTEREDPROFE S S I O N A L E N GINEER 1"=50' (2) 45' LONG x 5' WIDE, 0.5' EFFECTIVE DEPTH ABSORPTION TRENCHES CO - CLEANOUT 2CO - DOUBLE CLEANOUT FCO - FOUNDATION CLEANOUT FS - FLOW SPLITTER VALVE MH - MANHOLE MT - MONITORING TUBE SV - SEPTIC VENT TH - TEST HOLE LEGEND 2CO PERMIT # OSP251105 PID # 051-151-16 T15N R1W SEC 8 LOT 115 A B FEET 0 50 100 FCO JAYHAWK DRIVE 3-BDRM HOME PLAN AS-BUILT 1/26/26 EXISTING WELL TH#1CR A B T R E E S T R E E T 50' ROW RESERVE (BOOK 232 PAGE 127) 50' ROW RESERVE (BOOK 232 PAGE 127) CO1 CO2 CO3 CO4 MT3 MT4 MT1 MT2 1000-GAL SEPTIC TANK TH#2 A B FCO 23.2 MH 29.9 SV 35.1 2CO 37.8 CO1 70.1 MT1 72.0 MT2 77.5 74.2 78.9 81.3 100.9 103.5 110.5 CO2 79.4 MT3 111.7 CO3 109.8 CO4 101.2 MT4 100.8 113.0 121.8 119.9 105.5 104.4 PROFILE AS-BUILT (NO SCALE) 89.9 85.6 90.6 95.9 FC O MH SV PERMIT # OSP251105 PID # 051-151-16 T15 R1W SEC 8, LOT 115 1000 GAL SEPTIC TANK 2C O 89.7 Benjamin Schiller CE 12592 R E GISTEREDPROFE S S I O N A L E N GINEER 1/15/26 DRAINFIELD ROCK MT 1 CO 1 CO 2 MT 2 MOA APPROVED SAND 95.8 FINISH GRADE TH # 2 NO GROUNDWATER 6/25/25 92.3 85.3 91.8 92.3 ORIGINAL GRADE 89.8 92.3 91.8 89.8 MT 3 CO 3 CO 4 MT 4 95.8 FINISH GRADE TH # 2 NO GROUNDWATER 6/25/25 92.3 85.3 91.8 92.3 ORIGINAL GRADE 89.8 92.3 91.8 89.8 45.0 45.0 DRAINFIELD ROCK Certified Drilling Log OWNER OF LAND: Timothy Oakes ADDRESS: 20231 Crabtree St. Chugiak, AK 99567 LEGAL DESCRIPTION T15N R1W SEC 8 LT 115 DATE: 6/10/25 PERMIT NUMBER: OSP251105 DATE OF ISSUE: 4/25/25 TAX IDENTIFICATION NUMBER 05115116000 Is well located at approved permit location: Yes No Method of Drilling: air rotary cable tool Depth of Well: 244’ Casing Type: Steel Wall thickness .250 inches Diameter: 6 inches, depth 120 feet Liner type: 140’ of 4.5” PVC Static Water Level: 108 feet Recovery Rate .75 gpm gph Method of Testing Air Well Intake Opening Type: open end open hole Screened Start feet Stopped Perforations Start feet Stopped Grout Type: Bentonite Volume: 50 Lbs. Depth: from 2 feet, to 42 feet Well Disinfected Upon Completion: yes no Method of Disinfection: Chlorine 50 PPM Comments: Bore Hole Data Depth From To 0 2 Casing Stickup 2 4 Overburden 4 60 Silt, gravel, some boulders 60 64 Gravel, silt, small amount of water 64 110 Gravel and silt 110 120 Sandstone with some green 120 200 Black hard rock, fallout 200 240 Bedrock broken Drillers Name: Cole Sullivan ATTENTION: It is the responsibility of the property owner to submit a copy of the well log to the proper authority. Municipality of Anchorage: Department of Health & Human Services and/or Department of Environmental Conservation. MatSu Borough: Department of Environmental Conservation. www.sullivanwaterwells.com Pump Installation Log Well Drilling Permit Number: OSP 251105 Date of Issue 4/25/25 Parcel Identification Number: 05115116000 Legal Description Property Owner Name & Address T15N R1W SEC 8 LT 115 Timothy Oakes 20231 Crabtree St. Chugiak, AK 99567 Pump Installation Date: 11/17/25 Pump Intake Depth Below Top of Well Casing: 212 feet Pump manufacturer’s Name: Flint & Walling Pump Model: 4F07P07301S Pump Size: 3/4 hp Pitless Adapter Burial Depth: 12 feet Pitless Adapter Installer: Pitless Manufacturer: Unknown Disinfected Upon Completion? yes no Method of Disinfection: Chlorine 50 PPM Comments: Pump Installers Name: Sullivan Water Wells Attention: The pump installer shall provide a pump installation log to the DSD within 30 days of pump installation. Merrill Received Date/Time 01/14/2026 12:28 01/14/2026 11:30Collected Date/Time 1260139001 Matrix SGS Ref.# Client Sample ID T15N R1WSec8L115 Client Name Project Name/# Printed Date/Time 01/19/2026 14:41Forge Engineering Inc. Technical Director Stephen C. Ede T15N R1WSec8L115 Drinking Water Sample Remarks: Parameter Results LOQ Units Method Allowable Limits Prep Date Analysis Date InitContainer ID Metals by ICP/MS HBL01/16/26EP200.8ug/LArsenic 01/15/2630.3 5.00 (<10)*C Waters (Provisional as of 12/29/25) DAT01/19/26SM21 4500NO3-Fmg/LTotal Nitrate/Nitrite-N ND 0.200 (<10)B Microbiology Laboratory HBL01/14/26SM21 9223B100mLE. Coli Negative 1 A HBL01/14/26SM21 9223B100mLTotal Coliform Negative 1 A 2 of 5 MUNICIPALITY OF ANCHORAGE DEVELOPMENT SERVICES DEPARTMENT 907-343-7904 On-Site Water and Wastewater Section Fax: 343-7997 www.muni.org/onsite Mailing Address: P. O. Box 196650 * Anchorage, Alaska 99519-6650 * www.muni.org Arsenic Advisory Permit Approval # OSP251105 Subdivision: T15N 1W SEC 8, Block: , Lot: 115 A water sample revealed an arsenic concentration of 30.3 micrograms per liter (ug/L). The Environmental Protection Agency (EPA) has established a maximum contaminant level (MCL) of 10.0 ug/L for public drinking water systems. While private wells are not subject to this regulation, EPA standards are based on existing health information and can therefore be used to gauge the relative quality of water from private wells. Information on arsenic is available from the On-Site Water and Wastewater Program website (www.muni.org/onsite) or at 343-7904. This advisory must be attached to all copies of the subject Permit Approval. 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 hftp://www.muni.org/onsite On -Site Water & Wastewater System Permit Permit Number: OSP251105 Work Type: WellSeptic Initial Tax Code Number: 05115116000 Site Legal Address: T15N R1 W SEC 8 LT 115 G:1257 Site Mailing Address: Owner: OAKES TIMOTHY O & DEBBIE R Design Engineer: FORGE ENGINEERING This permit is for the construction of: Effective Date: Expiration Date: Lot Size in Sq Ft: Total Bedrooms: ellt S,. J. I)eiiartIIIent 4/25/2025 4/25/2026 108900 Q Disposal Field Cif 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 Special Provisions: A test hole is required prior to construction of the absorption field, in the location shown on the site plan, to confirm minimum separation to impermeable soil and seasonal high groundwater, as well as percolation rate. Construction may proceed at your own risk prior to 7-day groundwater monitoring. If results require a design change, construction shall stop pending approval of a change order. Please submit results with the inspection report (or change order, if required). % o 1, o�� �. Received By: 1 - 1 Date: Issued By: Date: Z, 2 3 ON -SITE SEPTIC/WELL PERMIT APPLICATION Parcel I.D. 051-151-16 Property owner(s) Timothy Oakes Mailing address PO BOX 672294, Chugiak, AK 99567 Site address NHN Jayhawk Dr / Crabtree St Legal description T15N R1W SEC 8 Lot 115 Number of Bedrooms 3 Engineering Firm Forge Engineering Building Permit Number Day phone Not Applicable 0 APPLICATION IS FOR: APPLICATION IS AN: (Z all that apply) Absorption Field M Initial El Septic Tank El Upgrade El Holding Tank 1-1 Renewal EJ Privy D Well El THIS APPLICATION INCLUDES A WAIVER REQUEST FOR: Permit/Rush Fees: Date of Payment: 0c. C Permit No. _3 s- os- Waiver Fees: Date of Payment: Waiver No. Distance: April 14, 2025 MOA Development Services, On-Site Water & Wastewater Program 4700 Elmore Rd Anchorage, AK 99507 Subject: T15N R1W SEC 8 L115 – NHN Jayhawk Dr 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. 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 toward the south side of the lot, and the septic trenches are aligned along the contours in this area. There is a short section of steeper slopes (less than 25%) near that corner, but the trenches are below that. 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. The test hole done previously was placed in an area that is now covered by the home site. We have used that test hole for our design, while specifying that a new test hole must be done prior to construction in the area that the septic will end up in. 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 OSP251105, Curtis Townsend, 04/25/25 T15N R1W SEC 8 LOT 115 PERMIT # OSP251105 W W w W < ct ALTERNATE SITE PID # 051-151-16 JAYHAWKI.,D'RIVE �Er- — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — -- E N 6 IN E E R I m G1 s1 Mlvk LEGEND OF AQ, Aw CO - CLEANOUT 2CO - DOUBLE CLEANOUT . -49 TH SEPTIC PLAN FCO - FOUNDATION CLEANOUT • . FS -FLOW SPLITTER VALVE . ......... Benja C C i Schiller MH - MANHOLE E 2592 0 50 100 7/3125 FEET MT - MONITORING TUBE SV - SEPTIC VENT 1 =50TH - TEST HOLE T15N R1 W SEC 8 LOT 115 DESIGN FACTORS: SYSTEM REQUIREMENTS: 450 GPD PEAK FLOW 5' WIDE TRENCH SYSTEM PERK RATE: <1 MIN/IN 1000-GAL SEPTIC TANK APPLICATION RATE: 1 GPD/SF 450 GPD / 1 GPD/SF / 5' WIDE * 1 RED FACTOR [0.5 DEEP] = 90 LF TRENCH REQUIRED (90 LF SPECIFIED) BOTTOM OF TRENCH: 1' BELOW GRADE MAX FLOW LINE ELEVATION: 0.5' BELOW GRADE 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 Cf) .6 1 Q. E N G I NEE R I" G • ' • • Benja Schiller ' �F �•. CE 12592 •`�i 7/3/25 , • •�V�� ,`tli� PROFESSIONP�'.► 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 --- 1 2 3 4 5 6 GM (SILTY GRAVEL W/ SAND) Professional Engineers Stamp: T15N R1W SEC 8 LOT 115 - JAYHAWK LANE 3/21/25 051-151-16 ACES 159 8 16 1' OB 2 Benjamin Schiller CE 12592REGISTEREDPROFESSION A L E N GINEER PERC TEST LOCATION TECHNICIAN: INSPECTOR 165 8 16 15.5' 3/28/25 COMMENTS: SITE PLAN 6 0 16 USCS SOIL CLASSIFICATION WAS VISUALLY DETERMINED 4/10/25 MOISTURE NOTED AT TIME OF DIGGING?- SP (SAND) 159 8 16 2.5 165 8 16 6 0 16 159 12 16 2.5 165 12 16 6 0 16 159 8 163 165 8 16 6 0 16 159 8 163 165 8 16 6 0 16 159 8 163 165 8 16 6 0 16 Municipality of Anchorage On-site Water and Wastewater REVIEWED FOR CODE COMPLIANCE OSP251105, Curtis Townsend, 04/25/25 E SOILS LOG AND PERCOLATION TEST N G I N E E R 1 N G DESCRIPTION: ITTLE DIPPER LEGAL NLC 8 LOT 115 - JAYHAWK LANE PERFORMED FOR DATE: 6 / 18 / 25 PARCEL ID#: 051-151-16 Professions DEPTH TEST HOLE c-,� , (feet) 1 ( � PERC TEST LOCATION 2 �•. 3 4 GM (SILTY GRAVEL W/ SAND) 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 YES MOISTURE NOTED AT TIME OF DIGGING? NONE DEPTH TO WATER AFTER MONITORING 6/25/25 DATE OF MONITORING DATE READING NET TIME (MINUTES) DEPTH TOWATERNET (INCHES) DROP (INCHES) 6/18/25 1 0.1 159 %6 165 %6 6 %6 2 0.1 159 %6 165 %6 6 5116 3 0.1 15913416 165 5 716 6 %6 4 0.1 159 %6 165 %6 6 %6 5 0.1 159 6/6 165 %6 6 %6 6 0.1 159 %6 165 %6 6 %6 PERCOLATION RATE: <1 (MIN/INCH) COMMENTS: USCS SOIL CLASSIFICATION WAS VISUALLY DETERMINED SITE PLAN TECHNICIAN: JUSTIN EARLS