HomeMy WebLinkAboutT15N R1W SEC 8 LT 141Onsite File e ^ �y 3 sf � X i k ^ p (] lOt. 0 18 Gt s Municipality of Anchorage ,, 6 9 '' ÷ On-Site Water and Wastewater Program . ti • re; (907) 343-7904 ,Cora FEd ti Certificate of On-Site Systems App -<.-I Parcel I.D. 051-153-06 Expiration Date: 6 8- 1. GENERAL INFORMATION Complete legal description T15N R1W Sec 8 Lot 141 Location (site address) 20011 South Birchwood Loop Current Property owner(s) Carol R. WilkingS Day phone Mailing address PO Box 670975 Chugiak AK 99567 Real Estate Agent Kristen Martin Day phone 907-205-0721 2. TYPE OF DWELLING: 0 Single Family (w/wo ADU) ❑ Duplex ❑ Multiple Dwellings (Single Family and/or Duplex) 3. NUMBER OF BEDROOMS: 4 4. TYPE OF WATER SUPPLY: TYPE OF WASTEWATER DISPOSAL: Individual Well Q Individual Individual Water Storage ❑ Holding Tank ❑ Community Class Well ❑ Community ❑ Public Water System ❑ Public Sewer ❑ WaiverNariance request for: Distance: Received by:' i t 6-1 ,01../ Date: g//a1/4 COSA to be released to the engineer,unless otherwise requested by the engineer. COSA Fee $ 243 Waiver Fee $ Date of Payment a,'2 !(2 Date of Payment Receipt Number (352 b Receipt Number COSA# 6 5C/3039 39 Waiver# 5. 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 for this application, shows that the on-site water supply and/or wastewater disposal system is (are) safe, functional and adequate for the number of bedrooms and type of structure indicated herein. I further verify that based on the information obtained from the Municipality of Anchorage files and from my investigation and inspection, the on-site water supply and/or wastewater disposal system is(are) in compliance with all applicable Municipal and State codes, ordinances, and regulations in effect at the time of installation. Name of Firm Forge Engineering Inc. Phone (907)522-7773 Address POBOX 240773 Anchorage, AK 99524 Engineer's Printed Name Benjamin Schiller Date 2/05/18 / 9F AL4 6. DSD SIGNATURE N System #1 Approved for L( bedrooms �6 Schiller • �% System #2 Approved for bedrooms `'••., C 12592 -.4 ."0-'" Disapproved Conditional approval for bedrooms, with the following stipulations: ON-SITE CY` =z WATER AND ' WASTEWATER o 4' PROGRAM ' <az s 9# By: j w�, ` Original Certificate Date:.^/ Z —1 2 The Municipality of Anchorage Development Services Division (DSD) issues Certificates of On-Site Systems Approval (COSA) based only upon the representations given in paragraph 5 by an independent professional civil engineer registered in the State of Alaska. The Municipality • of Anchorage is not responsible for errors or omissions in the professional engineer's work. • • 7. ATTACHMENTS: COSA Checklist X Nitrate Advisory Septic System Advisory Arsenic Advisory • Well Flow Advisory Other COSA blue sheet c If more than 1 septic system is on the lot: COSA Checklist# of Structure served by this system Certificate of On-Site Systems Approval Checklist Legal Description: T15N R1W Sec 8 Lot 141 Parcel ID: 051-153-06 A. WELL DATA Well type Private If A, B, or C provide PWSID# Well Log (Y/N) N Date completed Unknown Sanitary seal (Y/N) Y Wires properly protected (Y/N) Y Total depth 1 39 ft. Cased to U n k ft. Casing height(above ground) >18 in. FROM WELL LOG AT INSPECTION Date of test Unknown 1/13/18 Static water level ft. 78 ft. Well production g.p.m. 2'3 g.p.m. WATER SAMPLE RESULTS: Coliform ND* colonies/100 mL Nitrate ND mg/L Arsenic 7.14 ug/L Date of sample: 12/5/17 Collected by: Forge Eng *Second sample taken for choliform on 2/7/18 after disinfecting well and interior plumbing B. SEPTIC/HOLDING TANK DATA Tank Type/Material Septic/Concrete Date installed 10/14/69 Tank size 1250 gal. Number of Compartments 1 Cleanouts (Y/N) Y Foundation cleanout (Y/N) Y Depression over tank (Y/N) N High water alarm (Y/N) N Date of pumping 1/15/18 Pumper JR's Pumping C. ABSORPTION FIELD DATA (DLL EK F ie1c( No TPS-ed Date installed 2/05/18 Soil rating (g.p.d./ft2 or ft2/bdrm) 0.8 GPD/SF System type Deep Trench Length 48 ft. Width 3.0 ft. Gravel below pipe 8.0 ft. Total depth 15.2 ft. Eff. absorption area 768 ft` Monitoring tube Y Depression over field N Date of adequacy test New Constr Results (Pass/Fail) For bedrooms Fluid depth in absorption field before test in. Water added gal. New depth in. Elapsed Time: min. Final fluid depth in. Absorption rate >= g.p.d. Any rejuvenation treatment (past 12 mo.) (Y/N & type) If yes, give date D. LIFT STATION Date installed Size in gallons Manhole/Access (Y/N) "Pump on" level at in. "Pump off' level at in. High water alarm level at in. Datum Cycles tested Meets alarm &circuit requirements? E. SEPARATION DISTANCES WELL ON LOT TO: Septic tank/lift station on lot >100On adjacent lots >100' Absorption field on lot >1.00' 75' On adjacent lots >100' Public sewer main >75' Public sewer manhole/cleanout >100 Sewer/septic service line >25' Holding tank >75' Animal containment areas >50' Manure/animal excrete storage areas >100' SEPTIC/HOLDING TANK ON LOT TO: Building foundation > Property line >5 Absorption field >5 Water main >10' Water service line >10' Surface water >100' Wells on adjacent lots >100 ABSORPTION FIELD ON LOT TO: Property line > Building foundation >10 Water main >10 Water Service line >1 0 Surface water >100 Driveway, parking/vehicle storage >10 Curtain drain None Noted Wells on adjacent lots >100� F. COMMENTS *Well depth taken from old inspection report. Well had been below grade and was extended an additional 10' on 1/15/18. G. ENGINEER'S CERTIFICATION _���.���� 0F. At,ill / certify that I have determined through field inspections and ig�Q•; 9#�review of Municipal records that the above systems are in *:•9TH *-6:4- ,.*y conformance with MOA COSA guidelines in effect on this date. , Engineer's Printed Name Benjamin Schiller f---- --i4— 2/06/18 / BenSchiller ' Date �# -7% Ci` 72542 7 4%-ov COSA brown sheet 10-10-12.doc Lot 132 I S 89'54'30"E 329.85' 33' RIGHT-OF-WAY FOR ROADWAY AND PUBLIC UTILITIES (PATENT RESERVATION) A •......: N Lot 141 109,033.5 s.f. (CALCULATED) V z CO / cn o Xi — SEPTIC PIPES / 8.1' x 12.2' SHED • N 0q �, _ / 13.9' x 14.1' SHED- 27 a) p .+ Q .. 0 4. P*1 O W Q \ w N LA v w o rn r / ppb o 1 0 12.3' x 16.3' DECK Q / 11r1 WELL ynu/ L•. s4.0 123.4' SEPTIC PIPE I 0f'7 5.B^ 1 RESIDE/1g ES TO DE/10E `.1 24 p 100.0' N N C�/� ./7.0i:?.� 312' FOUNDATION \ a.. t.,, /r G •CO' GP' NC• ,Ao' 33' RIGHT-OF-WAY 9.4 ,,.o� FOR ROADWAY AND - / ' • PUBLIC UTILITIES t. \ (PATENT RESERVATION) orn ^ / TARIKA AVE \ N 89'52'00"W • 9.8.' o II I I Lot 164 PLOT PLAN AS BUILT X SCALE 1" = 50' GRID _ NW 1256 Project No. 17-458/A2 11500 Daryl Avenue, Anchorage, Alaska 99515-3049 Lang & Associatesi n c . (907) 522-6476 Phone (907) 522-4625 Fax aQo F q�O�D O'o Professional Land Surveyors kenOlangsurvey.com _ // jonathanOlangsurvey.com `�•' '`�5A. I hereby certify that I have surveyed the following described property: p�� 49TH %\ O LOT 141, SECTION 8, T15N, R1 W, SEWARD MERIDIAN, ALASKA * • - , . * p Anchorage Recording District, Alaska, and that the improvements situated thereon are 0 within the property lines and do not encroach onto the property adjacent thereto, that no improvements on the property lying adjacent thereto encroach on the surveyed �'A' ICENNETFi LAN �' premises and that there are no roadways, transmission lines or other visible Q^�, . o easements on said property except as indicated hereon. vQ �n Z`Bit 13 / Dated this .)�� .LS-520 . SJR the Day of _, , at Anchorage, Alaska ,o •••• O o \\4RO SSIONAk-"�� It is the responsibility of the owner to determine the existence of any easements, "Opppooa covenants, or restrictions which do not appear on the recorded subdivision plat. AECC963 MUNICIPALITY OF ANCHORAGE r`,(G9. ;.q�k11 DEVELOPMENT SERVICES DEPARTMENT /ip>kp'•.• `4 * '-•9+0 4700 ELMORE ROAD ANCHORAGE, AK 99519-6650 j• •• ••• 1� '*r6 SOILS LOG AND PERCOLATION TEST �/• •. Benja in Schiller : ��,�F�dT•• CE,122o92 ••• Ale LEGAL DESCRIPTION: T 15N R I W SEC8 LOT 141 111�F�PROFESS100. PERFORMED FOR: CAROL WILKINGS \�N��\~ DATE: 2/5/18 PROJECT No.: Professional Engineers Stamp: PARCEL ID#: 051-153-06 TECHNICIAN: J. M ILLETTE DEPTH TEST HOLE 2 (feet) 1' OB SLOPE SITE PLAN 1 -. -; 1.:::),:,:;;;', 5 :J. :;':::: SEE SITE PLAN :,•::-P1,;-:•:;•;:: �, S . 6 ,;.:.:..1.%.,::::,. p :2: SILTY SANDY GRAVEL , i0 ". a;' • WAS GROUND WATER ENCOUNTERED? NO s ••• ^•j,:i• IF YES @ WHAT DEPTH? 1 1 �+ i ..,tDEPTH OF WATER AFTER MONITORING: NONE ; DATE OF MONITORING: 2/12/18 12 ;ry;.:,•,-, :.i=:'.s'•.i..i':y GROSS TIME NET TIME DEPTH To NET DROP • �� DATE READING WATER 13 �;� ; :: (MINUTES) (MINUTES) (INCHES) (INCHES) 14 'f: `;••' 2/5/18 TEST HOLE PRESOAKED PRIOR TO TESTING: 15 .,., .a.'•.< 2/5/18 I 1:45 0 ' ;.,� � : 2 2:15 30 2-1/4 2-1/4 16 ; I; :i-,f' 3 2:16 0 17 °`: ` ,: .. 4 2:46 30 2-1/8 2-1/8 18 < .,,;:-!•::!:.:,,..;",..., ,;,;; • 5 2:47 0 19 'r1' 6 3:17 30 2-1/8 2-1/8 21 PERCOLATION RATE: 14.I (MIN/INCH) PERC.HOLE DIA. 6 (INCHES) TEST RUN BETWEEN: 5 FT. and 6 FT. COMMENTS: ''':7'. Municipality of Anchorage �� r` `, P.O. Box 196650 ® 4700 Elmore Road Anchorage, Alaska 99519-6650 e (907) 343-7904 ® Fax (907) 343-7997 http://www.muni.orq/Onsite Development Services Division On-Site Water and Wastewater Program **** VARIANCE/WAIVER REVIEW **** Waiver#: OSV181002 COSA#: OSC181039 Permit#: OSP181014 PID#: 051-153-06 Legal Description: T15N R1 W Sec 8 L141 Engineer: Forge engineering Your request for a waiver of the required 100 feet horizontal separation from the absorption field to the private well has been approved. The approved separation distance is 75.0 feet. This waiver approval applies to the existing absorption field 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: Date: 2Ci/ //6 Approved by: kj� (/v / Name of Revie -r **** VARIANCE/WAIVER REVIEW **** Municipality of Anchorage On-Site Water and Wastewater Program • (907) 343-7904 Page 1 of 3 ON-SITE WASTEWATERAINSPECTION REPORT OSP BMb t1 K \ c-vv''" �r S�f�"t 051-153-06 Permit Number: PI Number: Dwelling: El Single Family (SF) ❑ Duplex(D) [' Multiple (SF and/or D) Project: Cl New 0 Upgrade Name: Carol R. Wilkings ABSORPTION FIELD Address ❑■ Deep Trench ❑ Shallow Trench ❑ Bed ❑ Mound PO Box 670975 Chugiak AK 99567 ❑ Other Phone Number of Bedrooms Soil Rating Total depth from original grade 4 0.8 GPD/SF 14.4 / 13.0 Ft. LEGAL DESCRIPTION Depth to pipe invert from original grade Gravel depth beneath pipe Subdivision Block Lot 8.8 / 8.9 Ft 5.6 /4.1 Ft. 141 Fill added above original grade Gravel length Township Range Section 0.0 Ft. 31 / 50 Ft. 15N 1 VV 8 Gravel width Beds:Number of Lines Distance between lines SEPARATION DISTANCES 3.0 Ft. Ft. Tol Septic Absorption Holding Sewer Total absorption area Number of trenches Dist.between trenches From Tank Field Lift Station Tank Line 757 Ft2 2 11 Ft. Well 70' 75' N/A N/A >25' TANK ❑Septic ❑S.T.E.P. 0 Holding 0 Other I Manufacturer Capacity Surface Water >100' >100' N/A N/A Gal. Material Number of compartments Lot Line >5' >10' N/A N/A NA Foundation >5' >10' N/A N/A LIFT STATION Manufacturer Capacity Curtain Drain None Noted Gal. Pump on level at Pump off level at High water alarm at Remarks Documentation for existing trenches, built in the past without a septic permit. in. in. in. Tank was installed under a permit. Pump make and model Electrical Inspections performed by PIPE MATERIAL House to tank Tank to D3034 Installer drainfield Unknown Drainfield D3034 CO/MT D3034 Inspector J. Millette BENCH MARK (Assumed elevation) 100 ft Inspection 1u 1/11/18 2 Location and description m 3rd 4th Top of foundation block (bottom of first log). COMMUNITY DEVELOPMENT DEPARTMENT APPROVAL Engineer's Stamp Conditional Approval: Date .:�.�P' •�l A *• ,• i ‘ %*?r 004 �.! jams 'Schiller a �' CE 12592 •,..4.4,-/ Approve. /� / �011,�a:••?14(01''x . pp _ t .a � Date Z -�'(� �� ;PRO=:SS4` 4 Inspection Report_9-1-12.doc C P-al vti.- j -e- , frv- T9q ' l9 �pt �A�-vl azosVp) T15N R1W SEC 8 LOT 141 PERMIT # OSP181014 PID # 051-153-06 I Lot 132 I (UNDEVELOPED) S) 2C01 28.7 51.3 W SV 33.8 57.5 D 2CO2 37.2 61.5 N I m DV 40.1 64.0 C01 40.4 64.7 } o CO2 37.6 83.4 ° MT1 37.9 83.5 ? CO3 52.2 78.0 // ccnn C04 71.1 117.51 r7;0 //// m C05 788.05 107.98 PROPOSED 48'LONG x 3'WIDE,8' / _:_• ' . EFFECTIVE DEPTH ABSORPTION ��` //// C06 _89.7 - 129.6.. •MT3 87.0 107.4 TRENCH 9p/ /// MT4 88.8 128.7 50'LONG x 3'WIDE,5.5' U,• / /2/7/. H#2 EFFECTIVE DEPTH ABSORPTION • TRENCH _ _ /// G / C0 MT3 • 30'LONG x 3'WIDE,4' FFECTIVE ;7" //� b I MT4 / DEPTH ABSORPTION TRENCH- ,\ / /// Z I '�,( 1250-GALLON CONC SEP4IC TAN4�C� � // C04 / / .• (EXACT DIMENSIONS UNKNOWN) \ // c. mt TN#1 Co NEW DOUBLE CLEANOUT BEFORE \ ./�( //// 1-'- ---------------- MTi TANK // �_ 2 •5: C I —�:`coy 1 // CC \ 1 7/ EXISTING WELL w j // I 0 j I I 4-BDRM HOM , ) .1 1 LT__I \ ,\ / o Lu 1o • II w L _ . _ __ \ , / 0 _._ _ , N /.__ L ) \ )... 33'PATENT ROW EASEy E/NT \ _ _ - moi `� I NOTE:/ •-._/ L — — — Lot 1 64 / / NO WELL OR SEPTIC WITHIN 100' ���tx\elb NO SLOPES>25%WITHIN 50'OR SURFACE WATER WITHIN 100'OF THE LEGEND /��P,�(�, ��j,+ PROPOSED SEPTIC SYSTEM CO-CLEANOUT g .9 2C0-DOUBLE CLEANOUT j*;'49 7H i" .*1, SEPTIC SYSTEM IS 100'FROM PROPERTY LINE.NO COMMUNITY DV FLOW DIVERTER VALVE p WELLS ARE IN THE AREA.THERE ARE NO CONFLICTS WITH WELLS OR FCO FOUNDATION CLEANOUT -- p SEPTIC SYSTEMS. • Benj ,n Schiller / MH-MANHOLE YO�'•,• CE 12592 •��i 0 50 100 MT-MONITORING TUBE ,��\FAPROFESSlOyA����~ FEET SV SEPTIC VENT \\�� ESS\0 ' 1"=50 TH-TEST HOLE T15N R1W SEC 8 LOT 141 PERMIT # OSP181014 PID # 051-153-06 0U 2 97.1 ORIGINAL AND FINAL GRADE 0 U I I I 'P1111- -- -- --- 88.3 1 I 88.3 DRAINFIELD ROCK 82.7 31' 1 76.1 NO GROUNDWATER 2/05/18 I I I 0U /-97.1 ORIGINAL AND FINAL GRADE 0 88.2— -88.2 DRAINFIELD ROCK 84.1 r----._ 50' 1i <76.1 NO GROUNDWATER 2/05/18 II— °Fslli �ex.4fit TA ;VI*: ?—" 1' •.* ...:�-. �.. ..... tl Benjae�n Schiller : PROFILE AS-BUILT 4��,;•. CE 12592 .••`•(-_/ 1i �l'F�., Feb0G.2018,.: A (NO SCALE) kk F0PROFESSIONP�. . PO BOX 240773 ANCHORAGE, AK 99524 522-7773 677-7766 (FAX) February 2, 2018 Municipality of Anchorage Development Services Dept- On-Site Water & Wastewater Program 4700 Elmore Rd Anchorage, AK 99507 Subject: T15N R1W SEC18 Lot 141 – 20011 South Birchwood Loop Rd Septic system design and permit application Dear On-Site Services Engineer: The septic system for the 4-bedroom home on this property has failed, so we are submitting this permit application for the construction of a new set of trenches. The existing septic tank is concrete and has not failed at this time. The attached site plan identifies the location of the home as well as the proposed septic location. No conflicts exist between this proposed system and any wells, whether on this lot or adjacent lots. Drainage arrows are shown on the site plan showing the grade and direction of flow. The drainage pattern in general will not be changed by the construction. The test holes placed on the lot indicate silty sandy gravel with some larger cobbles (SM/GM). No groundwater or bedrock was found down to 21’. The percolation rate was determined to be around 9 min/in. An application rate of 0.8 gpd/sf was used in the design of the absorption system. We are proposing to place a deep absorption trench 3 ’ wide x 48’ long x 8’ effective depth. The elevation of the distribution line will be 3’ below the surface for a total depth of 11’. Soil will be mounded 0.5’ above the trench. A minimum of 3’ of fill or 2” of insulation and 2’ of fill will be placed over the absorption trench and 4’ over the septic tank. The ground surface on the lot is mostly flat with only moderate slopes, between 2 to 8% from the front of the lot to the back. There are no steep slopes anywhere on the lot. The new trench will be constructed parallel to the slope as much as possible. It will be a minimum of 100’ from all wells and surface water, and more than 5’ away from the septic tank. The surrounding properties are either undeveloped or have wells greater than 100’ from the property line. The existing set of trenches were built sometime in the past- likely several decades ago, as they have reached failure. There is no record of a permit or inspection reports for these trenches. As part of the required as-builts for this permit, we will also submit as-builts of the existing trenches. Initially, each trench only had a cleanout at the near end of it. We were present when Northern Excavation found and exposed the far end of each trench, adding a cleanout to the lateral and Municipality of Anchorage On-site Water and Wastewater REVIEWED FOR CODE COMPLIANCE OSP181014, Deb Wockenfuss, 02/02/18 installing a monitoring tube in each trench. We can verify the dimensions and the makeup of each trench, along with the calculations showing they are sufficient for a 4-bedroom home. Per our discussion with On-Site about this matter, we will submit an additional permit fee for the additional review time. We are also requesting waivers for these trenches. There is very little information in the municipal files on this property, but the old inspection reports acknowledge that the septic tank is within the 100’ well radius. While the old crib is supposedly outside that radius, these trenches are partially within. The closer trench is 75’ from the well, while the further trench is 87’. Although the trenches appear to have been in operation for many years, the water sample from the well indicates no bacterial contamination and no measurable nitrates. Additionally, the soils found in the test hole were quickly-draining soils with significant presence of sand, indicating that effluent will absorb quickly into the ground and receive adequate filtration from the soils. The ground slopes away from the well at about 5%, decreasing the likelihood of contamination. There is no additional threat to health or safety in allowing those trenches to remain. We are asking that the current minimum separation distance of 75’ be approved. Being now fully documented, these trenches will be left in place and connected to the system with a diverter valve. They will be allowed to recover over the next few years, and can be used again in the future as an alternative to the new trenches. If the system is constructed as designed, it will have no adverse impact: • On the wells in the area or those to be constructed in the future. • On existing septic systems in the area or those to be constructed in the future. • On reserve space on any lots located in the area. • On drainage patterns in the area. The current drainage pattern will be maintained. Sincerely, Benjamin Schiller, PE 2/2/18 23 6 . 0 234.0 232.0 230.0 228. 0 22 6.0 238.0 3.9%2.2%4.5%4.6%4.3%5.8%7.6%2CO 10050 0 FEET 1"=50' 4-BDRM HOME EXISTING WELL NOTE: NO SLOPES >25% WITHIN 50' OR SURFACE WATER WITHIN 100' OF THE PROPOSED SEPTIC SYSTEM SEPTIC SYSTEM IS 100' FROM PROPERTY LINE. NO COMMUNITY WELLS ARE IN THE AREA. THERE ARE NO CONFLICTS WITH WELLS OR SEPTIC SYSTEMS. CO - CLEANOUT 2CO - DOUBLE CLEANOUT DV - FLOW DIVERTER VALVE FCO - FOUNDATION CLEANOUT MH - MANHOLE MT - MONITORING TUBE SV - SEPTIC VENT TH - TEST HOLE LEGEND MT TH#1 T15N R1W SEC 8 LOT 141 Feb 02, 2018 PROPOSED TEST HOLE 50' LONG x 3' WIDE, 5.5' EFFECTIVE DEPTH ABSORPTION TRENCH 30' LONG x 3' WIDE, 4' EFFECTIVE DEPTH ABSORPTION TRENCH PROPOSED 48' LONG x 3' WIDE, 8' EFFECTIVE DEPTH ABSORPTION TRENCH CO CO SV 1250-GALLON CONC SEPTIC TANK (EXACT DIMENSIONS UNKNOWN) NEW FLOW DIVERTER VALVE (UNDEVELOPED)(UNDEVELOPED)NO WELL OR SEPTIC WITHIN 100'NO WELL OR SEPTIC WITHIN 100'33' PATENT ROW EASEMENT33' PATENT ROW RESERVEWETLANDS BOUNDARY Municipality of Anchorage On-site Water and Wastewater REVIEWED FOR CODE COMPLIANCE OSP181014, Deb Wockenfuss, 02/02/18 T15N R1W SEC 8 LOT 141 DESIGN FACTORS: SYSTEM REQUIREMENTS: 600 GPD PEAK FLOW PERK RATE: 9 MIN/IN APPLICATION RATE: 0.8 GPD/SF 3' WIDE DEEP TRENCH SYSTEM 1250-GAL SEPTIC TANK (EXISTING) 600 GPD / 0.8 GPD/SF / 8' DEEP / 2 SIDES = 46.9 LF TRENCH NOTES: GRADE AREA OVER TRENCH TO DRAIN AWAY MIN 6' SEPARATION FROM BEDROCK MIN 4' SEPARATION FROM GROUNDWATER MIN 100' SEPARATION FROM NEARBY WELLS MIN 100' SEPARATION FROM SURFACE WATER OR STREAMS TYPICAL DEEP TRENCH SECTION (NO SCALE) THEREFORE: CONSTRUCT AN ABSORPTION TRENCH 48' LONG x 3' WIDE x 8' EFFECTIVE DEPTH. FLOW LINE ELEVATION IN TRENCHES TO BE 3' BELOW ORIGINAL GROUND SURFACE. TOTAL DEPTH TO BE 11' BELOW EXISTING GROUND. PROVIDE 3' COVER OVER TRENCHES AND 4' COVER OVER SEPTIC TANK, OR INSULATION WITH 2' COVER. 4" PERFORATED PVC (HOLES DOWN) DRAINFIELD ROCK 3' 6" 6" 2'-6" 8' Feb 02, 2018 Municipality of Anchorage On-site Water and Wastewater REVIEWED FOR CODE COMPLIANCE OSP181014, Deb Wockenfuss, 02/02/18 LEGAL DESCRIPTION: PERFORMED FOR: DATE: PARCEL ID#: SOILS LOG AND PERCOLATION TEST TECHNICIAN: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 DEPTH (feet) PROJECT No.: TEST HOLE 1 SLOPE SLOPE SITE PLAN See Site Plan DATE READING GROSS TIME (minutes) NET TIME (minutes) DEPTH to WATER NET DROP TEST HOLE PRESOAKED PRIOR TO TESTING: PERC. HOLE DIA. (INCHES)PERCOLATION RATE: (MIN/INCH) TEST RUN BETWEEN: FT. and FT. COMMENTS: (inches)(inches) T15N R1W SEC8 LOT 141 1/11/18 J. Millette Development Services Department 4700 Elmore Road Anchorage, AK 99519-6650 Municipality of Anchorage DATE OF MONITORING: WAS GROUND WATER ENCOUNTERED? DEPTH OF WATER AFTER MONITORING: IF YES @ WHAT DEPTH? NO - NONE 5:33 1/11/18 01 8.9 6 4 5 6:03 30 3-1/2 2 1' OB SILTY SANDY GRAVEL W/ COBBLES 051-153-06 CAROL WILKINGS 6:04 03 6:34 30 4 6:35 05 7:05 30 6 3-1/2 3-3/83-3/8 3-3/8 3-3/8 Professional Engineers Stamp: Jan 31, 2018 21 1/18/18 1/11/18 sm/gm Municipality of Anchorage On-site Water and Wastewater REVIEWED FOR CODE COMPLIANCE OSP181014, Deb Wockenfuss, 02/02/18 GP' &TER ANCHORAGE ARI-'A BORO~'~H H EAL'rH DEPARTMENT 327 EAGLE ST. ANCHORAGE, ALASKA 99501 279-2511 INSPECTION REPORT Old-SITE SEWAGE DISPOSAL SYSTEM LOCATION ~, SEPTIC TANK: DISTANCE FROM WELL~ "~ / LIQUID CAPACITY__ LEGAL ~ .../ ~ _ L_ ? ? ~' ~' ~_~,//~.. NUMBER OF / l~.,x./Z4.~ '~.~,~' L,OU,D _GALLONS. INSIDE LENGTH. INSIDE WIDTH DEPTH SEEPAGE SYSTEM: SEEPAGE PIT: NUMBER OF PITS LINING MATERIAL NEAREST LOT LINE_ .OUTSIDE DIAMETER ~-- OR WIDTH__J~'~ / .. D,STANCE PROM WEL, ©- TOTAL EFFECTIVE ABSORP11ON AREA (WALL AREA) 7/ , LENGTH_ , DEPTH , BUILDING FOUNDATION TILE DRAIN FIELD: DISTANCE FROM WELL NUMBER OF LINES__ ABSORPTION AREA , FOUNDATION_ .,~--~:~'~, E/K~"~!ST LOT LINE DIST,.~C--E-'I~[~EEN LINES _ TRENCH WIDTH__ SQ. FT. LENGTH OF EACH LINE TOTAL LENGTH ., OF LINES IN. TOTAL EFFECTIVE DEPTH: TOP OF TILE TO FINISH GRADE DEPTH OF FILTER MATERIAL BENEAIH TILE IN. ABOVE TILE__ WELL: "~ - ' __ TYPE.~2/( /,"E~ ~--/L~ ., DEPTH_/'~ ~;~' / , LOT LINE ~) / NEAREST ~ ./ SEPTIC _, SEWER LINE~/ ) ,TANK_ DISTANCE FROM ~. ~'.) / WATER / BUILDING FOUNDATION, SAMPLE_ ./~ ~, NEAREST '~ t SEEPAGE ~ ~ OTHER , SYSTEM__/~r'r'~' , CESSPOOL '~' , SOURCES DIAGRAM OF SYSTEM DISTANCES: // =7 ~ = DATE APPROVED -- GAAB-HD-2 GREATEL ANCHORAGE ARF, A . HEALTH DEPARTMENT 327 Eagle St. Anchorage, Alaska 99501 279-2511 SEWAGE DISPOSAL SYSTEM - APPLICATION & PERMIT NAME OF APPLICANT ~¢-,,/k,,.~ I/,)]/. ~/At~.(; _ MAILING ADDRESS ~¢~ ~/ , PHONE NO._ RESIDENCE ADDRESS~[ ~"ll~¢O~:P ~ ~OFL LOCATION OF INSTALLATION LEGAL DESCRIPTION ~/ /~ ,[)RAIN FIELD OTHER APPLICATION TO INSTALL: SEPTIC TANK , SEEPAGE PIT. , PERCOLATION TEST RESULTS ~ ANTICIPATE[) DATE OF COMPLETION ~ BELOW TO BE FILLED OUT BY HEALTH DEPARTMENT THIS ISTO SERVE AS - ~/¢~~'~,//]~"~'~d~'. ., PERMIT TO INSTALL A _AS DESCRIBED BELOW. SIZE OF UNIT TO BE SERVED _. SEPX~O TA~K S~ZE ~ ~&~tP TYrE ~t~P~ T SSEPA6E ~REA DIAGRAM OF SYSTEM DISTANCES: Health Authority I certify that I am familiar with the requirements of Greater Anchorage Area Boroug 2~8 and that the above described system is in accordance with said code. DA'rE_ ~ /