The URL can be used to link to this page

Home My WebLink AboutSIEFKER TR 14Si fker Tr 14 #015-281-13 MUNICIPALITY OF ANCHORAGE Community Development Department Development Services Division On-Site Water & Wastewater Program (~ Phone:907-343-7904 Fax:907-343-7997 ON-SITE SEWERANELL PERMIT APPLICATION Parcel I.D. 015-281-13 Property owner(s) Elias Wilterding Mailing address 12240 Avion Street, Anchorage, AK 99516 Day phone Site address 12240 Avion Street, Anchorage, AK 99516 Legal description (Sub'd., Block & Lot) Tract 14, Siefker Subdivision Legal description (Township, Range & Section) T13N R3W SM Lot Size 49500 .Sq. Ft. Number of Bedrooms 4 APPLICATION IS FOR: ([] all th~ 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 .al~piic~ble Municipal Codes. (Sign'~._~prope~.. (f~vner 6r a~rized agent) Permit/Rush Feesi*~'~ I~ O J;) 4.2 z¢ ! ~_._~ Waiver Fees: Date of Payment: ~'p,//'~, Date of Payment: J Receipt Number'~O0q/'Jo¢, ~¢. ~ Receipt Number: Permit No.. ~).-~P/~ / (O c'l Waiver No. Permit App_:- :: ',2.Jc: Permit No. 0SP161104 Municipality of Anchorage Development Services Department BUILDING SAFETY DIVISION Page 1 of 7 W.O. 16120 Date 5/12/16 P.O. Box 196650 *Anchorage, AK 99519-6650' Tel: 343-7904 On-Site Wastewater Disposal System-SITE NARRATIVE Legal Description: TRACT 14, SIEFKER SUBDMSION PlO No. 015-281-15 SITE NARRATIVE TRACT 14, SIEFKER SUBDIVISION (THE SUBJECT LOT) IS 1.14 ACRES AND IS BORDERED ON THE NORTH, SOUTH AND WEST BY DEVELOPED LOTS OF THE SAME ACREAGE; AND ON THE EAST BY A DEDICATED 60' PUBLIC RIGHT OF WAY (AVlON STREET). SEE SHEET 5. THERE IS AN EXISTING WELL AND SEPTIC SYSTEM ON THE LOT WHICH WERE INSTALLED IN 1966. THE EXISTING SEPTIC SYSTEM IS FAILING AND IS SCHEDULED TO BE ABANDONED WHEN THE NEW SYSTEM IS INSTALLED. THE NEW SEPTIC SYSTEM IS DESIGNED FOR A FOUR (4) BEDROOM HOUSE. WELLS: THERE IS AN EXISTING 6" RESIDENTIAL WELL LOCATED ON THE PROPERTY; AS WELL AS ON ALL ADJACENT LOTS. THE PROPOSED SEPTIC SYSTEM CAN BE INSTALL ON THE SUBJECT LOT WITHOUT IMPACTING EXISTNG OR FUTURE PROTECTIVE WELL RADII. SEE SHEET 5. SEPTIC SYSTEMS: THERE ARE EXISTING SEPTIC SYSTEMS ON ALL ADJACENTS LOTS. DUE TO THE LARGE SIZE OF THESE LOTS, THE PROPOSED SEPTIC SYSTEM CAN BE PLACED IN A MANNER AS TO NOT IMPOSE ANY RESTRICTIONS ON THE FUTURE PLACEMENT OF SEPTIC SYSTEMS ON THE ADJACENT LOTS. DRAINAGE & STREAMS: THE LOT SLOPES TO THE WEST AT APPROXIMATELY 4% SLOPE. THE LOT CAN BE GRADED TO PREVENT ANY PONDING OF WATER AROUND THE PROPOSED SEPTIC SYSTEM. THERE ARE NO CUT BANKS, STREAMS OR DRAINAGE CHANNELS (OTHER THAN ALONG THE EXISTING STREETS) ON THE LOT. ALL DISTURBED AREAS WILL RECEIVE TOP SOIL AND SEEDING TO PREVENT SOIL EROSION. 5-12-16 Permif No. OSP16il04 Municipality of Anchorage Development Services Department BUILDING SAFETY DIVISION Page 2 of 7 W.O. 16120 Dale 5-12-16 P.O. Box 196650' Anchorage, AK 99519-6650' Tel: 343-7904 On-Site Wastewater Disposal System-DESIGN CALCULATIONS Legal Descripfion: TRACT 14, SIEFKER SUBDMSION PID No. 015-281-1;3 SYSTEM DESIGN CALCULATIONS FOR WIDE DRAIN FIELD 1, NO. BEDROOMS = 4 2. USE WIDE DRAINFIELD SYSTEM 3. ABSORBTION AREA = (# BEDROOMS)(150 GPD/BR) TRENCH APPLICATION RATE = (4)(150) 0.45* 4. WIDE DRAINFIELD REDUCTIN FACTOR: IF DEPTH OF GRAVEL = 4,0' WIDTH OF DRAINFIELD = 5' LENGTH OF TRENCH = 155'; = 1333 SF DEPTH REDUCTION FACTOR = 0.58 USE TWO TRENCHES @ 78.0' EACH PERCOLATION RATE *1 MIN/INCH 0-1 1-5 6-15 16-30 PIT & TRENCH APPLICATION RATE GPD/SF NOT SUITABLE 1.2 0.8 0.6 31-60 0.45 GREATER THAN 60 FILTER LAYER NOT SUITABLE 1,0 Permit No. 0SP161104 Municipality of Anchorage Development Services Department BUILDING SAFETY DIVISION Page 5 of 7 W.O. 16120 Date 5'12-16 P.O. Box 196650' Anchorage, AK 99519-6650' Tel: 343-7904 Proposed Well & On-Site Wastewater Disposal System Legal Description: TRACT 14, SIEFKER SUBDFv-ISION PID No. 015-281-1,5 HOUSE 8FF=101.7 BFF=92.2 DRAIN FROM:- HOUSE. INV=9(] 60' 78.0' FOUNDATION C.O. GROUND & FINISH GRADE 96.3+ 2EA. (5' WIDE TRENCHES) PVC MONITURINO TUBE (2 PERFORATE LOWER 93.5± OUT END OF ~E~-C~- -- 1250 GALLON, TWO COMPARTMENT STEEL sEPTIc TANK TANK TO BE INSTALL LEVEL *ALL ELEVATIONS ARE TO INVERT OF PIPE UNLESS OTHERWISE NOTED 4" PVC PERF PIPE (D$054) ~83.0 BOTTOM OF TRENCH ROCK PROFILE SCALE: NTS PROFILE-~ENCH Permit No. 0SP161104 Municipality of Anchorage Development Services Department BUILDING SAFETY DIVISION Page 6 of 7 WoO. 16120 Date 5-12-16 P.O. Box 196650 ® Anchorage, AK 99519-6650' Tel: 343-7904 Proposed Well & On-Site Wastewater Disposal System Legal Description: TRACT 14, SIEFKER SUBDMSION PID No. 015-281-13 ORIGINAL TOP SOIL & GRASS ROOTS TO 24" 2% A.~IR TIGHT CAP__STABiLiZED WITH TOPSOIL /ac'&: GRASS MONITORING TUBE BACKFILL SANDY SILT (ML) NO WATER TABLE 5~ FABRIC PERFORATED BISTRIBUTION PIPE (D303~) ROCK PER M.O.A. SPECIFICATIONS PERFORATE ONLY THAT PORTION OF THE MONITORING TUBE BELOW THE DISTRIBUTION PIPE. TO SEASONAL HIGH WATER LEVEL = 16.5 TO BEDROCK OR IMPERMEABLE LAYER TRENCH SECTION 16120SSC6R Permit No. OSPI§ll04 DHI CONSULTING ENGINEERS Legal Description: TRACT 14, SIEFKER SUBDIVISION Page. 7 of 7 W.O.. 16120 Dote 5/12/16 NOTES: ALL CONSTRUCTION SHALL BE IN ACCORDANCE WITH CHAPTER 15.65. WASTEWATER DISPOSAL REGULATIONS OF THE MUNICIPAL CODE. AND MOA STANDARD SPECIFICATIONS FOR STREETS, DRAINAGE, UTILITIES AND PARKS (MASS) 2009 AS CURRENTLY AMENDED, AND ALL APPLICABLE STATE AND FEDERAL REGULATIONS. 2 INSTALL NEW 1250 GAL. 2 COMPARTMENT, STEEL SEPTIC TANK AS SHOWN ON THE DRAWINGS. SET TANK LEVEL, 3 EXISTING STRUCTURES, WELLS, SEPTIC SYSTEMS OBSERVED WITHIN 200 FT. OF THE PROPOSED SYSTEM ARE SHOWN ON DESIGN DRAWINGS° 4 ANY DEVIATION FROM THE DESIGN MUST BE AUTHORIZED BY THE ENGINEER AND THE M.O.A. PRIOR TO ITS INCORPORATION INTO THE SYSTEM, 5 CONTRACTOR TO LOCATE ALL UNDERGROUND UTILITIES, PROPERTY LINES, EXISTING WELLS, WATERWAYS, SURFACE AND SUBSURFACE DRAINAGE FACILITIES, LAKES, PONDS, AND OTHER FACILITIES REQUIRING SEPARATION DISTANCES FROM THE PROPOSED SEPTIC SYSTEM. 6 CONTRACTOR TO STAKE PROPOSED SYSTEM & NOTIFY THE ENGINEER OF ANY OBSERVED CONFLICTS PRIOR TO CONSTRUCTION. STAKE LOCATION OF EACH TRENCH END. NOTE DEPTH OF CUT ON LATH. CONTRACTOR SHALL HAVE SURVEY LEVEL AND ROD SET UP ON SITE DURING CONSTRUCTION. 7 CONTRACTOR TO NOTIFY THE ENGINEER AND ON-SITE SERVICES 24 HOURS PRIOR TO COMMENCING WITH CONSTRUCTION. A MINIMUM OF THREE SITE VISITS ARE REQUIRED. THE FIRST VISIT SHALL BE OF THE SUBGRADE PRIOR TO PLACING THE SEWER ROCK. THE SECOND VISIT SHALL BE AFTER THE PLACEMENT OF SEWER ROCK, DISTRIBUTION PIPING, STANDPIPES, AND OTHER COMPONENTS AS SPECIFIED. THE THIRD VISIT SHALL BE AFTER THE WORK IS COMPLETED. 8 CONTRACTOR SHALL DELIVER TO THE ENGINEER A SET OF RED-LINED, AS-BUILT DRAWINGS SHOWING ALL DATA AS SPECIFIED IN SEC. 15.65.F. 2, 3, 4, 5, 6 OF MUNICIPAL WASTEWATER DISPOSAL CODE WITHIN FIVE DAYS OF THE FINAL VISIT. INVERTS AND SWING TIE LOCATES SHALL BE TO THE NEAREST TENTH OF A FOOT. THESE AS-BUILTS SHALL BE USED BY THE ENGINEER TO PREPARE AND SUBMIT RECORD DRAWINGS TO ON-SITE SERVICES. 9 ALL EXCAVATION DEPTHS ARE ADVISORY. THEY ARE TO BE VERIFIED AND MAY BE MODIFIED BY THE ENGINEER IF ACTUAL FIELD CONDITIONS VARY FROM THOSE USED TO PREPARE THE DESIGN. 10 BOTTOM OF TRENCH EXCAVATION SHALL BE LEVEL. SIDEWALLS SHALL BE SCARIFIED. RECORD ELEVATIONS AT BEGINNING, MIDDLE, AND END OF TRENCH BOTTOM. 11 PLACE THE SEWER ROCK TO THE SPECIFIED DEPTHS. DO NOT CONTAMINATE SEWER ROCK. LEVEL ROCK SURFACE TO :J: 0.1' PRIOR TO INSTALLING THE PERFORATED PIPE. 12 ALL PIPE SHALL BE PVC CONFORMING TO ASTM D3034. ALL JOINTS SHALL BE SEALED WITH APPROVED GLUE° CLEANOUTS SHALL BE INSTALLED AT THE END(S) OF THE TRENCH(S). 4" MONITORING TUBE(S) SHALL BE INSTALLED AT THE END OF EACH TRENCH, WHERE SHOWN ON PLANS. 13 COVER THE DISTRIBUTION PIPE WITH MIN 2" SEWER ROCK, BEFORE PLACING INSULATION AND/OR GEOTEXTILE, FILL, AND TOPSOIL. 14 MINIMUM SOIL COVER SHALL BE 3 FEET OVER THE PIPE AND 4 FEET OVER THE SEPTIC TANK. ALL INSULATION BOARD SHALL BE 2 LAYERS OF 2" THICK BY 4' WIDE POLYSTYRENE, DOW H1-35 OR ENGINEER-APPROVED EQUAL. CENTER BOARD WIDTH OVER PIPE. 15 AN APPROVED GEOTEXTILE FABRIC SHALL BE INSTALLED BETWEEN THE SEWER ROCK AND THE BACKFILL. 16 MATERIAL USED AS FILL SHALL BE CLEAN AND FREE OF ORGANICS, TRASH AND CONSTRUCTION DEBRIS. 17 SLOPE ALL FILL MATERIAL AND TOPSOIL TO DRAIN AT 2% MIN. SLOPE, AND IN SUCH A MANNER THAT PONDING AT OR NEAR THE DRAIN FIELD DOES NOT OCCUR. THE FILL SHALL BE LEFT 6" HIGHER THAN SHOWN TO ALLOW FOR SETTLEMENT. THE TOP 4" OF COVER SHALL BE TOPSOIL. SEED SURFACE AFTER COMPLETING INSTALLATION AS PER MUNICIPAL SPECS. 18 CONTRACTOR TO BE RESPONSIBLE FOR THE REMOVAL AND DISPOSAL OF CONTAMINATED MATERIAL FROM THE EXISTING TRENCHS, IF ENCOUNTERED. 19 CONTRACTOR TO DECOMMISSION EXISTING SEPTIC TANK AND ABSORPTION FIELD IN ACCORDANCE WiTH AMC 15.65. SOILS LOG-PERCOLATION TEST TEST HOLE 1 PERFORMED FOR: ELIAS WlLTERDING DA~ PERFORMED: 5--2-16 ~ ~ %, LEGAL DESCRIP~ON:TRACT 14, SIEFKER SUBDIVISION 5-12-16 2 :' : · .'z. :~ > '/- SLOPE Sl~ PLAN 3 ~'/' '>- 7 _):z. _ 8 .;:/.. · ./'/. SANDY SILT (ML) ~' '~:' NO WATER TABLE '/' '~: WAS GROUND WA~R S 10 ~' -/ ~ ,:~..~ ENCOUN~RED ? NO L 11 ~:~;.; ~F ~S. AT ~AT p ,'/..) DEP~ ~ .;-/.. ' E 12 : .~-/~ DEPTH OF WA~R /. -~" AFaR MONITORING ~ NONE DATE: 5-12-16 15 ;-/.. ~ ~ ~-lS ~ .,, s- o.~ 16 ~- ~ BOSOM OF ~ST HOLE 17 ' 18 19 PERCOLATION RATE: 53 (MINU~S/INCH.) PERCHOLE DIAMETER: 6" 20 TEST RUN BETWEEN: 4.5 FT. AND 5.0 COMMENTS:SOILS ~RE PRE-SOAKED PRIOR TO RUNNING PERCOLA~ON TEST. PERFORMED BY: DEE HIGH I, DEE HIGH, HEREBY CERTIFY THAT ~IS ~ST WAS PERFORMED IN ACCORDANCE WITH ALL STATE AND MUNICIPAL GUIDELINES IN EFFECT ON ~IS DA~. DATE: 5-12-16 W. 0.16120 MUNICIPALITY OF ANCHOEACE '~' ~'~ O~ '~/~.~ ~ I~ DEP^R~ENT OF ~*~H ~ ~ S~C~ ~'~,.__ ........ .~:%..~ SOILS LOG-PERCOLATION TEST ' PERFORMED FOR: ELIAS WlLTERDING DA~ PERFORMED: 5-2-16 ~&~2"*. LEGAL DESCRIP~oN:TRACT 14, SIEFKER SUBDIVISION -~'~' 5-12-16 , '/.. z SLOPE SI~ 3 ,:<. ,:<..> - 6 7 ->'/'" 8 ./. >;<>.~ SANDY SILT (ML) 9 r;<>.2 OCCASIONAL BOLDER TO '/'-~;! NO WA~R TABLE · ./.. WAS GROUND WATER S 10 ~;/.¢ ENCOUN~RED ? NO L '>'/'..q' 0 11 ~'>~;~.. . IF%S, ATWHAT p ,'/../ DEPTH ~ .>./. ' E 12 : .~[~: DEPTH OF WATER /../ AFaR MONITORING ? NONE DATE: 5-12-16 14 *;~' '/ ~ ~-~s ~. s" o.~ 16 ¢.. /~ BOSOM OF ~ST HOLE 17 18 1 9 PERCOLATION RATE: 52 (MINU~S/INCH.) PERCHOLE DIAME~R: 6" 20 TEST RUN BE~EN: 4.0 FT. AND 4.5 FT. COMMENTS:SOILS ~RE PRE-SOAKED PRIOR TO RUNNING PERCOLA~ON TEST. PERFORMED BY: DEE HIGH I, DEE HIGH, HEREBY CERTIFY ~AT THIS ~ST WAS PERFORMED IN ACCORDANCE WITH ALL STATE AND MUNICIPAL GUIDELINES IN EFFECT ON THIS DA~, DA~: 5-12-16 W. 0.16120 MUNICIPALITY OF ANCHORAGE Development Services Department Phone: (907)343-7904 On -Site Water & Wastewater Section Fax: (907)343-7997 Certificate of On -Site Systems Approval OSC251014 Parcel ID 015-281-13 Legal description SIEFKER TR 14 Site address 12240 AVION ST Expiration Date: 10/15/2025 Current property owner(s) WILTERDING ELIAS O & KATRINA A X The On-site system(s) is/are approved for 4 bedrooms By: Conditional approval for bedrooms, with the following stipulations: Comments or conditions: Original Certificate Date: 2/5/2025 Thi�s.Certificate of On -Site Systems Approval (COSA) is intended to demonstrate the subject system(s) is/are in substantial compliance with municipal code. The Municipality of Anchorage, Development Service Department (DSD) issues COSAs based upon representations provided by an independent professional engineer. The Municipality of Anchorage is not responsible for errors or omissions in the professional engineer's submittal. ATTACHMENTS: COSA Checklist X Well Flow Advisory Absorption Field Advisory Nitrate Advisory Tank Age Advisory Arsenic Advisory Other MUNICIPALITY OF ANCHORAGE Development Services Department Phone: 907-343-7904 On -Site Water & Wastewater Section �' Fax: 907-343-7997 Certificate of On -Site Systems Approval Application 1. GENERAL INFORMATION Parcel I.D. 015-281-13 Complete legal description Siefker Tract 14 Location (site address) 12240 Avion Street Current property owner(s) Elias O & Katrina A Wilterding Day phone 2. ON-SITE SYSTEMS SIZED FOR 4 BEDROOMS 3. TYPE OF WATER SUPPLY: X Private Well ❑ Private Well serving 2 dwelling units ❑ Private Well serving 3+ dwelling units ❑ Community Well or Public ❑ Water Storage 4. TYPE OF WASTEWATER DISPOSAL: ❑■ Private Septic ❑ Private Septic serving 2 dwelling units ❑ Holding Tank ❑ Community Septic or Public Sewer 5. SEPTIC TANK: ❑■ Steel ❑ Plastic ❑ Concrete ❑ Fiberglass Age 8 - See advisory if steel older than 20 years 6. ABSORPTION FIELD: ❑ AWWTS ❑ Bed ❑■ Deep Trench ❑ Wide Trench ❑ Seepage Pit Waiver request for: Expedited review requested: ❑ Distance: By applying for this entitlement, this property is subject to inspection by municipal On-site staff to verify the accuracy of the information provided. COSA Fee $ -� Date of Payment COSA # 05 G 2--5 Waiver Fee $ Date of Payment Waiver # COSA Applicalion_June 2022 COSA Checklist_June 2022 COSA Checklist Legal Description: Parcel ID: If more than 1 well and/or septic system on lot, provide separate checklist. Structure served by this system ____ A. WELL DATA Well log is filed with Onsite (or attached) Date drilled Total depth ft Cased to ft Sanitary seal is functioning correctly Wires are properly protected Casing height (above ground) in. Date of flow test for COSA Static water level at beginning of test ft. Well production at time of test gpm Water storage tank volume gallons Well disinfected for coliform test? Yes No Coliform bacteria is Negative Nitrate mg/L Nitrate less than MRL (ND) Arsenic ug/L Arsenic less than MRL (ND) Collected by Date Comments __________________________________________________________________________________ B. TANK DATA Measured operating fluid level in septic tank Date of pumping Required maintenance completed, if AWWTS Comments: C. LIFT STATION Required maintenance completed Age of lift station years Lift station material Comments: D. ABSORPTION FIELD DATA Which system tested (date installed) ALL standpipes present per record drawing Total measured depth from grade ft (max) Measured depth to pipe invert from grade ft (min) N/A – pressurized field. Per record drawings, field is insulated. Monitor tubes go to bottom of effective. If not, state depth into effective Presoaked required if (Required if house vacant or field not used for more than 30 days prior to date of test) Gallons introduced gallons date Any rejuvenation treatment (past 12 months) If yes, enter date Adequacy test date Results Pass Fluid depth prior to test in Water added gal New fluid depth in Elapsed time min Final fluid depth in Absorption rate gpd FIELD STATUS – POST RECOVERY Effective depth (per record drawings) in Effective depth used in Effective depth remaining in Comments/Deficiencies: COSA Checklist_June 2022 E. SEPARATION DISTANCES From Private Well on Lot to: (Please enter distances if less than required or if community well on lot) Septic Tank/Lift Station on Lot > 100’ Yes if No ft Neighboring Tank > 100’ Yes if No ft Absorption Field on Lot > 100’ Yes if No ft Neighboring Absorption Fields > 100’ Yes if No ft Community Sewer Main > 75’ Yes if No ft Community Sewer Manhole/Cleanout > 100’ Yes if No ft Private Sewer/Septic Line > 25’ Yes if No ft Holding Tank > 100’ Yes if No ft Animal Containment > 50’ Yes if No ft Manure/Animal Excreta Storage > 100’ Yes if No ft N/A – Served by Community Well (not on lot) or Public Water From Septic/Holding Tank and Absorption Field(s) on Lot to: (Please enter distances if less than required) Building Foundations > 10’ Yes if No ft Tank to Property Line > 5’ Yes if No ft Field to Property Line > 10’ Yes if No ft Water Main > 10’ Yes if No ft Water Service Line > 10’ Yes if No ft Surface Water > 100’ Yes if No ft Wells on Adjacent Lots: Private Wells > 100’ Yes if No ft Community Wells > 200’ Yes if No ft If tank or field is under driveway comment below F.ENGINEER’S COMMENTS G.CERTIFICATION & 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, indicates that the on-site water supply and/or wastewater disposal system appears to comply with applicable Municipal and State codes, ordinances, and regulations in effect at the time of installation, unless noted otherwise. In conducting an adequacy test, I attempt to provide a thorough, conscientious engineering analysis of the system in accordance with ADEC & MOA guidelines and regulations. The reported results describe the performance of the system under the conditions encountered at the time of the test, and separation distances measured to readily identifiable features. The operational life of all wells and septic systems depend on the local soil condition, ground water levels that may fluctuate during the year, and the water usage of the family being served by the system. These conditions are outside the control of the evaluator of this system. All systems eventually fail, and satisfactory test results do not guarantee future performance of the system, nor do they guarantee that there are no hidden defects or encroachments. Therefore, we cannot provide any warranty for future performance, nor can we estimate remaining life of the system. The content of this report is for the sole benefit of the owner listed above. Name of Firm Phone Engineer’s Printed Name Date AsBuilt 12/18/24 1"=50' 0 50