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HomeMy WebLinkAboutSOUTHFORK WEST BLK 6 LT 6uthfork West Block 6 Lot 6 #078-031 - ! 5  Municipality of Anchorage Development Services Department ?__-".~ Building Safety DMslon.,--,=:~;= - On-Site Water & Wastewater Program, 4700 ,South Bragaw SL P.O. Box 196850 Anchorage, AK 99519-6650 www.cLanchomge.ak.us (907) 343-7904 Page I of On-Site Waatewater Disposal System and/or Wall Inspection Report Permit Number:. SW010105 PID Number:. O78-051-15 Name: dON THOMSON Wastewater System: · New [] Upgrade Acldr~s: ~734~ s~rrA ~u~ DR. '~CL~ R~R ALASKA 99577 ABSORPTION FIELD Phone: No. of Bedrooms: (907) 792-45,38 3 mDeep Trench · Shallow Trench n Bed mUound 6 6 SOUTH FORK WEST 5.1' MAXIMUM ,. 3.9' (uPPrR) / 4.o' (LOW[R) -- -- -- 0 -- 1.0 r~ 80' (2 O 40'+ LONG) WELL: · New [] Upgrade 5 roi """'~ '~2 ~ PRIVATE 92 r~ 92 ,. 800-1- s~., D 30,34/ F-810 SULLIVAN WATER WELLS 5/14/01 61 n. SOUTNFORK CONST. 6/19/2001 ~2 ~, UNKNOWN ,, 2 ,, TANK SEPARATION DISTANCES ,s.,uc a,~d~., aS.T.~,, ao~., From Tank St~Uor, Tank ~ u.,. PREMIER PLASTIC 1000 2 S.,o:. wo~.. 1aa'+ 1aa'+ - - - LIFT STATION CuH~a~n Omen '= N(~NE KNOW · ~D,e~e~'""r- I~ !~*samms ~. .emaA.: nN~L OP.~NG ANO ~0mON~L COV~R OVeR BENCH MARK THE SLHi~C SYSTEM TO BE DONE: IN THE SPRING OF' 2002 BOTTOM OF SIDING O POINT "A". BY SOUTHFORK CONSTRUCTION PER DAN JANKE. Inspections performed by: AWWC, INC. Dates: 1st 6/19/Ol '. .......... -: ,.., t ............ AS BUILT DRAWING SW010103 B 078-031-1 F¢O I 22..4 ~1 22.5 14.1 ~2 23.3 16.3 DBL1 24.2 18.2 DB~ 24.7 18.9 ~ 25.6 20.8 ~N~ D~NR~ C01 27.5 20.6 ~ ~1 28.6 24.5 // co~ ~.= ~.~ // ~ S~ ~2 64.1 56.9 // ~ // C03 24.5 34.9 // <,',// ~----- ~3 23,8 36.5 "~ _ ~ '"'"':" ?.:..- :. CONSULTANTS, ~C. . JOHN THOMSON (907) 240-2020 2 OF 3 .~e . ~ess. SOUTHFORK WEST SUBDIVISION; LOT 6, BLOCK 6 *'"' AS-BUILT DRAWING OF N~ WELL LOCATRION AND SEPTIC SYSTEM PERIdrT NUMBER: SW01010~ AS-BUILT DRAWING PA.~C~lO i,e,~eE~:078_o21_15 ~ ~ ~ 103.42 ~P OF T~K =t t = ~P OF T~K (1~ - 97~4+/- (0~ - 96.97+/- ~ ~ ~ ~, ~ ~ ~I~OF~P~ 5' ' 10'+ 5' .~o~: ~o~.~: ~"~ I~" .'"~'~' .... ¢'"':'" JOHN THOMSON (907) 240-2020 SOUTH FORK WEST SUBDISIVISON; LOT 6, BLOCK 6, PROFILE AS-BUILT OF SEPTIC SYSTEM ASBUILT SEt~A~D & ASSOCIA'. I HEREBY CERTIFY .THAT I HAVE SURVEYED THE SCALE~ . AND ~AT NO EN~HMENT$ EXIST ~CE~ AS INDICA~. IT I$ THE RES~NSIBILITY OF THE ~N~ ~ D~ERMINE THE ~ISTENCE OF ANY GRID, .~--.--~*.[-;-~ ~ E~ENTS~ COVENANTS~ OR RE~RICTIONS . WHI~ ~ NOT ~BAR ~ THE RE~D~ VISION P~T, UND~NO CIRCUMSTANCES S~ FB, ~'.. ~-~9l~ .. '~ OF FENCE LINE$~ OR FOR E~LISHING ~ND- DRAWN~ ARY LINES. G , 8U Municipality of Anchorage `a �r ui r Ori -Site Water and Wastewater Program z x ` y (907) 343-7994 s A F E T Y Certificate of On -Site Systems Approval Parcel I.D. 078-031-15 Expiration Date: " i '' 2-0 zQ 1. GENERAL INFORMATION: Complete legal description SOUTHFORK WEST; BLOCK 6, LOT 6 Location (site address) 1160 South Creek Road *Eagle River, AK 99577 CurrentProperty owner(s) Chris & Shelley Byrd Day phone 748-2812 Mailing address Real Estate Agent, Day phone 2. TYPEOF DWELLING: Z Single Family (w/wo ADU): ❑ Duplex ❑ Multiple Dwellings (Single Family and/or Duplex) 3. NUMBER OF BEDROOMS: 3 4. TYPE OF WATER SUPPLY: TYPE OF WASTEWATER DISPOSAL: Individual Well ® Individual Individual Water Storage ❑ Holding Tank ❑ Community Class Well - ❑ Community ❑ Public Water System ❑ Public Sewer ❑ WaiverNariance request for: Distance:. Received by: Date: COSA to be released to the engineer, unless otherwise requested by the engineer. COSA Fee $ J�J� Waiver Fee $ j Date of Payment oZ� �Li��o'� Date of, Payment Receipt Number ('3�{5t33�7 Receipt Number COSA # ®ci C �o ®l dJ `vt 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: Garness Engineering Group, Ltd (GEG) Phone: 907-337-6179 Address: 3701 East Tudor Road Suite 101- Anchorage, Alaska 99507 Engineer's Printed Name: Jeffrey A. Garness Date: In conducting this evaluation, GEG provided an engineering evaluation of the well and/or septic system in accordance with the guidelines and regulations established by the Municipality of Anchorage and industry practices. The reported results describe the condition of the system/s on the date/s of the evaluation. Separation distances were measured to readily identifiable features. Hidden defects or encroachments may exist that were not identified during the evaluation. The operational life of all wells and septic systems depend upon a variety of variables, including but not limited to, soil conditions, groundwater levels (that may fluctuate during the year), quality of construction (materials and workmanship), and the water usage of the family utilizing the system/s. These conditions can vary, and are outside the control of GEG. Satisfactory test results do not guarantee future performance of the system/s; therefore, GEG makes no warranty (express or implied) regarding the future performance of the well or septic system. GEG makes no representation whether an alternative well or septic system can be installed on the property in the event either of the current systems fail to perform adequately in the future. The content of this report is for the sole benefit of the person/party that retained GEG to perform the evaluation. Reliance upon the information provided in this report by any other person or party (including subsequent property purchasers) is not authorized, nor will it confer any legal right whatsoever. 6. DSQ,SIGNATURE System #1 Approved for -3 bedrooms System #2 Approved for bedrooms Disapproved Conditional approval for bedrooms, #AECC884 IN( OF f(<((r�i�i i yo'Q9''� ON-SITE m with the follova��stlpm)A":AND WASTEV. ITER PROs JJ�•ffi!3iiYtte\� Original Certificate Date: 2- 1 q _20.2o 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 Septic System Advisory Well Flow Advisory Nitrate Advisory Arsenic Prd,\+sorjr • N Other Legal Description: SOUTHFORK WEST; BLOCK 6, LOT 6 Parcel ID: 078-031-15 If more than 1 septic system on lot: COSA Checklist # 1 of 1 Structure served by this system 1 A. WELL DATA ❑ Well log is filed with Onsite (or attached) Date drilled 5/15/01 Total depth 92 ft Cased to 92 ft ❑ Sanitary seal is functioning correctly ❑ Wires are properly protected Casing height (above ground) 18+ in. Date of flow test for COSA 1124/20 Static water level at beginning of test 51.7 ft. Comments B. TANK DATA Age of tank(s) 19 years Tank type/material SEPTIU' Measured operating fluid level in septic tank 48 © Standpipes/foundation cleanout per record drawing Date of pumping 7/22/19 D. ABSORPTION FIELD DATA "NORTHEAST/SOUTHWEST Well production at time of test 4.9+ gpm Water storage tank volume N/A gallons Well disinfected for coliform test? ❑ Yes Al Nc X Coliform bacteria is Negative Nitrate 0.32 mg/L ❑ Nitrate less than MRL (ND) Arsenic ug/L ❑ Arsenic less than MRL (ND) Collected by GEG, LTD Date of Sample 1/24/20 C. LIFT STATION ❑ Required maintenance completed Age of lift station years Lift station material Comments: N/A Which system tested (date installed) 6/19/01 Adequacy test date 1/24/20 FW ALL standpipes present per record drawing Results Q Pass For 3 bedrooms Total measured. depth from grade -6_71 (max) Fluid depth prior to test 8 in Measured depth to pipe invert from grade "3/2.8+ft (min) Water added 629 gal ❑ N/A-- pressurized field 10 New depth in ❑ Monitor tubes go to bottom of effective. If not, state 120 depth into effective 3.8'x3.5' Elapsed time min Al Code -required soil cover over field Final fluid depth 8 in r_1 System presoaked Absorption rate 450+ gpd (Required if vacant for greater than 30 days prior to Any rejuvenation treatment (past 12 months) NONE date of test) Gallons introduced, N/A gallons If yes, enter date N/A Comments/Deficiencies: TESTED NORTHEAST TRENCH ONLY- SOUTHWEST TRENCH HAD AN I VFLUID DEPTH UPON ARRIVAL -BOTH DRAINFIELDS ARE INSULATED • AT NIT4 COSA Checklist yellow sheet E. SEPARATION DISTANCES From Private Well on Lot to: (Please enter distances if less than required or if community well) Septic Tank/Lift Station on Lot > 100' Community Sewer Manhole/Cleanout > 100' ❑✓ Yes if No ft ❑✓ Yes if No Neighboring Tank > 100' ❑✓ Yes if No ft Private Sewer/Septic Line > 25' ❑✓ Yes if No Absorption Field on Lot > 100' ❑✓ Yes if No ft Holding Tank > 100' ❑✓ Yes if No Neighboring Absorption Fields > 100' Private Wells > 100' 0✓ Yes if No Animal Containment > 50' ❑✓ Yes if No ✓❑ Yes if No ft Community Wells > 200' ❑✓ Yes if No Manure/Animal Excreta Storage > 100' —❑✓ Community Sewer Main > 75'✓❑ Yes if No ft Yes if No From Septic/Holding Tank on Lot to: (Please enter distances if less than required) Building Foundations > 10' ❑ Yes if No * ft Surface Water > 100' ft ft ft ft ft IZ Yes if No ft Property Line > 5'✓❑ Yes if No ft Wells on Adjacent Lots: Absorption Field > 5'✓❑ Yes if No ft Private Wells > 100' ❑✓ Yes if No Water Main > 10'✓❑ Yes if No ft Community Wells > 200' ✓❑ Yes if No. Water Service Line > 10' ❑ Yes if No ft If septic tank is under driveway comment below From Absorption Field on Lot to: (Please enter distances if less than required) Building Foundation > 10' ✓❑ Yes if No ft If absorption field is under driveway comment below A Property Line > 10' ✓❑ Yes if No ft Wells on Adjacent Lots: Water Main > 10' ✓❑ Yes if No ft Private Wells > 100' 0✓ Yes if No Water Service Line > 10' ❑7 Yes if No ft Community Wells > 200' ❑✓ Yes if No Surface Water > 100'✓❑ Yes if No ft F. ENGINEER'S COMMENTS *MET CODE AT TIME OF INSTALL - TANK UNDER DECK APROXIMATLEY 1.8' TO PIER BLOCK DECK SUPPORT AT CLOSEST POINT (SEE ATTACHED PHOTOS) **ASSUMED l certify that I have determined through field inspections and review of Municipal records that the above systems are in conformance with MOA COSA guidelines in effect on this date. COSA Checklist yellow sheet #AECC884 ft Iii ft ft Municipality of Anchorage Development Services Department Bul~ding Safe~y Division '-. On-Site Water & Wastewater Program 4700 South Bmgaw SL P.O. Box 196650 ,anchorage, AK 99519-6650 www.d.anchorage.ak, us (9O7) 343-79O4 CERTIFICATE OF HEALTH ,b, UTHORITY .b, PPROVAL FOR A SINGLE FAHILY DWELLING Parcel I.D. 078-051-15 1. GENERAL INFORMATION Expiration Date:. Complete legal description SOUTH FORK WEST SUBDMSION; LOT 6, BLOCK 6 Location (site address ordirec~ons) MILE 7.3 SOUTH CREEK ROAD * EAGLE RIVER, AK Current Property owner(s) Mailing address ., Lending agency Mailing address .. JOHN THOMSON Dayphone 240-2020 17.343 SANTA MARIA DRIVE * EAGLE RIVER, AK 99577 Day phone Real Estate Agent Mailing address Dayphone Un/ess otherwise requested, I-/AA will be helc~ by DSD for plckup. . 2, NUMBEROF BEDROOMS: 3 : 3. TYPE OF WATER SUPPLY: Individual Well Individual Water Storage Community Class Well Public Water System TYPE OF WASTEWATER DISPOSAL: Individual On-site ~ Individual Holding tank Community On-site ~] Public Sewer The Municipality of Anchorage Development Services Department (DSD) Issues Certificates of Health Authority Approval (HAA) based only upon the representations given In paragraph 5 by an Independent pmfesslonal civil engineer registered In the State of Alaska. Certificates of Health Authority Approval are required for the fl'ansfer of ti~Je (except between spouses) for prope~es served by a single family on-site wastewatar disposal and/or water supply system. DSD also Issues HAAs upon request to homeowners. Certificates of Health Authority Approval are valid for 90 days from the date of Issue for pmpe~es served by a private or Class C well and may be reissued with new watar sample resull= less than 30 days old. (Certificates may be reissued fora period of up to one year with valid water samples.) Certificetes are valid for one year for properties served by Class A or B wells or a public water system. The Municipality of Anchorage Is not responsible for ermra or omissions In the professional engineer's work. Note:Alaska Water and Wastewa!er Consultants, Inc. shal/ be paid $ ,~45,~ a~ or pdor to dosing for the engineering services provided. 4. STATEMENT OF INSPECTION BY ENGINEER As certified by my seal affixed hereto end as of the validation date shown below, I verify that my investigation, based on procedures outlined in the Health Authority Approval Guidelines for this application, shows that the on-site Water supply and/or wnstewater disposal system is(are) safe, functional and adequate for the number of bedrooms end type of structure indicated herein. I further verify that based on the inforTnation obtained from the Municipality of Anchorage files and from my investigation end inspection, the on-site water supply end/or wastewater disposal system is(are) in compliance with al~ applicable Municipal and State codes, ordinances, and regulations In effect at the time of installation. NameofFirm ALASKA WATER &: WASTE'WATER CONSULTANTS, INC. Phone Address 6901 DEBARR ROAD, surI'E: 2B * ANCHORAGE. AK 99504- Engineer's Printed Name JEi-i-~<EY A. GARNESS, P.E. Date 3,37-6179 Engineer's Comments: In conducling this eveluelion, A WWC, Inc. eliempted te provide a thorough, conscien~ous engineering analysis of the system In accordance ~ ADEC end MOA DSD Guidelines & RngulaEon~. The reported resutts desc~bed the pen'on'nence of the system under the condidons encountered et the lime of the test, end seperalio~ distances measured to readily Identifiable feature& The opera~nal life of ail wells and eeplic ~/stem$ depend on the Iocal salls condition, groundwater levels that may fluctuate during the year, end the water usage of the family being se/Yeti by the system. These condi~:~ns ere outside the conb~l of the evaluater of the system. Satis~ test results do not guarantee futura peffonwance of the system, nor do they guarantee that there em no hidden defects or encreechment~. AWWC, In~ can ttmmf~'e not provfde any warranty or future estimate of how long the system will conlinue to meet the operalional requlremen~s of the ADEC or MOA DSD. The content of this report I.~ for the sole benefit of the owner listed above. Any reliance upon or use of this report by any other person or perfy Is not authorized, nor wfil lt confer any legal fight whatsoever. 5. DSD SIGNATURE Approved for bedrooms. Disapproved. Conditional approval for __ bedrooms, with the ~owJng stipulations: ,~,'?C~I. ~ 9Pb~'.. ._ WATERAND : ~}})~j)) ~ ) ) ) )~1~ Attachments: HAA Checklist Septic System Advisory Well Flow Advisory Manitenanca Agreements Supplemental Engineer's Reort Other Original Certificate Date: II- 13-°t Municipality of Anchorage Development Services Department Or. Site Water & Wmmtewmtm' Pmgrmm ,4700 ~outh Bragaw ~t. P,O. Bex lg0650 Allcho(~, AK ~1 g-6650 REQUESTING I HEALTH AUTHORITY APPROVAL CHECKLIST CONDITIONAL HA.A) LegalOescdpl~on: SOUTH FORK WEST SUBDMSION; LOT 6t BLOCK 6 ParcellD: 078-0,~1-15 A. WELL DATA Welltype p~WA~ ffA, B, orCprovldePWSlD# N/A Oate completed 5/14/2001 ~anlta~/~ (Y/N) YES Totaldeplh 92 ft. Cased to 92 It. In. FROM WELL LOG Date of te~t 5/14/2001 $lafic water level 61 lt. Well production 12 g.p.m. WATER SAMPLE RESULTS: AT INSPECTION Coliform 0 colonies/lO0 mi. Date of aample: 10/22/2001 8EP'nC/HOLDING TANK DATA Nitrate 0.5 mgJL Oltmr bacte~ 0 colonic/IiX) mi. AWWCI INC. Tank Type/Material Tank~lze looo gal. Foundal~e deanout fi/N) YES Oate of pumping NEW AB~ORPTiON FIELD DATA Datelnstalled e/lg/2ool PLASTIC Number ofCompatlmenla 2 Oepmsslon over tank (Y/N) NO Pumper ~ rating ~ftYedrm) 0.8 Date ll,.stelied 6/19/2001 High water alarm (Y/N) N/A Lellglll 80' TOTAL _l~ ~ 5 lt. Total depth ~--Eff. ebsorpfloll a~8~+ ftc Mol~ tube YES Date of adequacy test NEW Results (Pass/Fall) - Fluid tiepin in et)so~fion field before test - in. Water added - gal. Elapsed 11me: - min. Final fiuld depth - in. Absorption rate Any reIuvenedon treatment (past 12 mo.) (Y/N & type) - System typeS-WIDE DRNNFIELDS Gravel below pipe .4.0 Depression over field NO For ,3 bedrooms Newdeplh - in. - g.p.d. tfyes, gtve date - Cycles te~ted Meets elarm & c~cult requirements'/ E. EEPARATION DISTANCES SEPARATION DISTANCES FROM WELL ON LOT TO: Sepfic tenk/lift atet]on on lot 100'+ Absorp~on field on lot.100'+ Public sewer maln N ~Wer/sepUc service line. 25'+ On adjacent lots lO0'+ On adjacent lots. 100'+ Public sewer manhole/cteanout Holdlng tank N/A N/A SEPARATION DISTANCF.~ FROM SEPTIC/HOLDING TANK ON LOT TO: Building foundation 5'+ Properly line 5'+ Abeerpllon field 5'+ Water main N/A Water ~ervlce line 10'+ Surface water 100'+ We~ on adjacent Iote SEPARATION DISTANCE FROM ABSORPTION FIELD ON LOT TO: Property line 10'+ Bu~lng foundation 10'+ Water main N/A Water ~ewfce line 10'+ Surface water lO0'+ Driveway, pa~ng/vehlde ~orage 5O'+ Cuflalndmln NON~: KNOWN Weliseead]acentlote lO0'+ F, COMMENTS O. ENGINEER'8 CERTIRCATION ,~..~.'../~F:~..~,~,..~)~, ~ certify that I hmm determined through field In.spec#ons ?nd revtew of Municipal records fhat ~]e above ey~em~ am tn conformance with MOA HAA guldellnes In effect on thl~ date. Englnee~'e Printed Name JEFFREY A. GARNESS Waiver Fee $ {)ate of P~n~ent Receipt Number ,ertif, ritting by SULLIVAN WATER WELLS P.O, BOX 670272, CHUGIAK. ALASKA 99567 · TELEPHONE 688-2750 OWNER OF LAND:J ~ ~'~.J '~1, ~'~ ADDRESS: ' LEGAL DESCRIPTION: ~ ~ ~ ~. ~ ~ ..... DATE: ;'~l ... PERMIT NUMBER: ~' Cate ¢ tssue ~ - ~ ~, T~ IDENTIFICATION NUMBER: z~ 7 ~ - ~- Is welt I~ated at approved pe~it location? ~ :~ No Method of Drilling: ~ta~ Q cable tool Depth of w~l: ~ Casing Type ~Wall ~ickness ~ inches Diamet~ ~ t( inches, depth , ~ ~ feet Liner Type: ~ ~ ~ Casing Stickup Above Ground: ~ feet Static Wat~ Level; ~ / feet R~ov~te: '~ gpm Meth~ of Testing: Well Intake Opening Type: ~end Q open hole ~ Scr~n~; Sta~ .... feet Stopped fee~ rg Perforations Sta~ ~feet .~topped feet GroutType ~e~*r~ . Volume Depth: from O f~t, to ~ ~ ~ feet Well Disinf~t~ Upon Completion? ~S Q No Method of Disinfection: ~4e~, ~ BORE HOLE DATA. Comments: Driller's Name A'Iq'ENTION: 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. MUNICIPALITY OF ANCHORAGE Development Services Department On-Site Water & Wastewater Program 4700 South Bragaw Street P.O. Box 196650, Anchorage, AK 99519-6650 (907) 343-7904 ON-SITE WASTEWATER DISPOSAL SYSTEM I WATER SUPPLY PERMIT Initial Date Issued: May 08, 2001 Expiration Date: May 08, 2002 Permit Number: SW010103 Legal Description: SOUTHFORKWEST BLK 6 LT 6 Design Engineer: 0041 AK Water & Wastewater Consultant Owner Name: JOHN THOMSON Owner Address: NHN SOUTH CREEK ROAD EAGLE RIVER , AK 99577- Parcel ID: 078-031-15 Site Address: Lot Size: 87125 SQ. FT. Total Bedrooms: 3 Permit Bedrooms: 3 This permit is for the construction of: ~ Disposal Field ~ Septic Tank [] Holding Tank [] Privy [] Private Well ~ Water Storage All construction must 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 engineer must notify DSD at least 2 hours prior to each inspection. Provide notification by calling (907) 343-7904 ( 24 hours ). ( Not required for a Water Supply Permit only ). 4. From October 15 to April 15, a subsurface soil absorption system under construction during freezing weather must be either: A. Open and closed on the same day. B. Covered, sealed, and heated to prevent freezing. Received By: Issued By: Date: Municipality of Anchorage Development Services Department Building Safety Division On-Site Water & Wastewater Program 4700 South Bragaw St. P.O. Box 196650 Anchorage, AK 99519-6650 www.ci.anchorage.ak.us (907) 343-7904 ON-SITE SEWER/WELL PERMIT APPLICATION FOR ,b, SINGLE FAHILY DWELLING ParcelI.D. 078'- O91 Permit Number 5l'vOlOlO.~ Property owner(s) Mailing address (1) Mailing address (2) JOHN THOMSON 17545 SANTA MARIA DRIVE * EAGLE RIVER, AK Day phone~__ Legal description (Lot, Block & Sub'd.) Legal description (Section, Township & Range) Lot Size 87.125 Acres/Sq. Ft. Zip Code 99577 LOT 6. BLOCK 6: SOUTHFORK WEST SUBDIVISION N/A Number of Bedrooms ~ THIS APPLICATION IS FOR: Sewer Only [] Well Only [] Sewer and Well · Water Storage [] Sewer Upgrade [] THIS PROPERTY CONTAINS: Hot Tub [] Jacuzzi [] Swimming Pool [] Water Softening Unit [] Therapy Pool [] I certify that the above information is correct. I further certify that this application is being made for a Single Family Dwelling and is in accordance with applicable Municipal codes. ALASKA WATER & WASTEWATER CONSULTANTS~ INC, Permit Fees: ~ Date of Payment: Receipt Number:. Waiver Fees; Date of Payment: Receipt Number:. ALASKA WATER & WASTEW TER May 3, 2001 Municipality of Anchorage Development Services Department On-Site Water & Wastewater Program P.O. Box 196650 Anchorage, Alaska 99519-6650 Ref: Well and Septic Design for Lot 6, Block 6, Southfork West Subdivision To whom it may concern: The proposed 3 bedroom house will be served by a private well and septic system. A existing test hole was found on the property and an additional test hole was excavated on the property. The proposed septic system will be designed around the 30 foot radii of these test holes. We are proposing that a 1000 gallon septic tank and dual five foot wide drainfields be installed. Comments regarding the proposed design are summarized as follows: 1. SOILS: See the attached logs which shows the soil classifications, groundwater monitoring, and the percolation test results. It is our opinion that due to the overall appearance of the soils, an application rate of 0.6 gallons/day/fi2 should be used. 2. TRENCH DESIGN: a. Percolation Rate: 8.6 minutes/inch b. C. d. Design Flow: 450 gallons per day e. Minimum Absorption Area: 750 ft2 f. Total Depth: 8 feet (max.) g. Effective Depth: 4 feet Width: 5 feet Reduction Factor: 0.50 Allowable Application Rate: 0.6 gallons/day/ft2 Number of Bedrooms: 3 Minimum Length: 76 feet total 1 ~en2gth (2 ~ 38 feet long each) Effective absorption area = 760 ft 3. SURFACE WATERS: There are no surface waters within 100 feet of the proposed upgrade. 6901 Debarr Road, Suite 2B * Anchorage, AK 99504 Ph: (907) 337-6179 * Fax: (907) 338-3246 * Website: akwwc.com 3. SURFACE WATERS: There are no surface waters within 100 feet of the proposed upgrade. 4. TOPOGRAPHY: As can be seen on the attached design drawing, the average topography in the area of the proposed septic system is a 10 to 20 percent running from approximately southwest to northeast; in short, there are no slope concerns. The trenches are to be installed parallel to slope contours. We are unaware of any adverse impacts this installation would have on adjacent wells or septic systems. If you have any questions, please contact us at 337-6179, or 244-9612. Thank you for your assistance.~ SincerelYl ~/ ' PresYd~nt mess, P.E., M.S. NOTE: Attached is a site plan drawing, a design drawing, a detail drawing, two soils logs, and a 7 page construction specification letter which are all part of the design package for this septic system. 6901 Debarr Road, Suite 2B * Anchorage, AK 99504 Ph: (907) 337-6179 * Fax: (907) 338-3246 * Website: akwwc.com I I LOT 2, BLOCK 5; q,~': I somro. K w~ s/D LOT 5, BLOCK 6; I ~ SOUTHFORK WEST S/D [ I I , I LOT 7, B~CK 6; JOHN THOMSON 240-2020 1 OF 5 SITE P~N FOR PEOPOSED WELL LOCATION AND SEPTIC SYSTEM ) I NOTES: CONTRACTOR SHALL HAVE THE WEST PROPER'I'Y LINE ~ED BY A REGISTERED LAND SURVEYOR PRIOR TO ANY - ,-"' 3ONSTRUCTION. __ 2. DEPENDING ON THE HOUSE ELEVATION, A 1250 GALLON / ,~ S.T.E.P. TANK MAY BE REQUIRED IN PLACE OF THE PROPOSED / L__ 1000 GALLON SEPTIC TANK. Rr-~QTERNATE SITE, WILL UIRE A LIFT STATION. ~- fPROPOSED DRNNFIELDS. EXCAVATE '1~'0 TRENCHES THAT ARE 8 FEET J DEEP MAXIMUM BY 5 FEET WIDE \ ~--A.W.W.C.. INC. TH#I // BY 38 FEET LONG EACH (76 FEET I \ ~ // TOTAL LENGTH). ADD 4 FEET OF \ \ // CLEAN, WASHED SDNER DRAINROCK. \ \ ~c~ // INSTALL TRENCHES PARALLEL TO " SLOPE CONTOURS. SEE DETAIL \ \ D w,.o, PAGE or , ---- __ .~_ ~-~ ~NS~ALL ~LOW / SEPTIC TANK (SEE NOTE) WEll DATE: D.*W. BY: AI.ASKA WATER & WASTEWATER ~LE: : CONSULTANTS, INC.- 1" = 40' ,' ) f ~ V.J 6901 DEBARR ROAD, SUITE ZB · ANCHORAGE, AK 9950& · PHONE (907~57-617g · FAX (907)538-5~6.6 PREPARED FOR: PHONE NUMBER: PAGE NUMBER.' JOHN THOMSON 240-2020 2 OF 5 LE~ OEEC.~T~O.: SOUTHFORK SUBDIVISION; LOT 6, BLOCK 6, (J[~-.~_¢e '". ..-' '_~"~=~ %;.% ~' ....... .,~.~ ~E or WORK: DESIGN OF PROPOSED WELL LOCATION AND SEPTIC SYSTEM c~ ri OMT MTO ~= pco coq c~ I ObIT MTO ' pCO coOII ,(~ ~ 5/5/2001 . M~Sg WATER & WSTEWATER JOHN THOMSON 240-2020 5 OF ~o~,,~o,~ ~,,v,~,o,= ~o, ~. ~oc~ ~. ,~{~2:...~.....:,55z~~ DESIGN OF PROPOSED WELL LOCATION AND SEPTIC SYSIEM '~%~ CONSULTANTS, INC. ... [SOIL LOG - PERCOLATION TEST] "~.'~'~rT~'~'''~ .... :""l LEGAL DESCRIPTION: SOUTHFORK WEST SUBDIVISION; LOT 6, BLOCK 6 :/eflfr~vlA. Garness.. PERFORMED FOR: CHRIS BYRD DATE: 4/17/2001 th"~e'e/'~'"~(JR ?~ '~''¥EF7953 I~EPT~I r.~ f ORGANICS ITEST HOLE #1I SOIL CLASSIFICATIONS PLAN i;~,:F:.~';~ GW --,===: ORG A.W.~r~,~ ~NC' -- = O0, GH CL ALTERNATE PROPOSED GC OL srrE--~; sgP~c ,~ ~ SW MH SP CH ~ HOLE-- \\ ,,'~\ ~ SM , OH ~.'\~.~ // SC DEPTH TO GROUNDWATER DATE itlllItIII GM/sM /1 /2001 DRY 4-/18/2001 DRY 4-/24/2001 ~--PROPOSED 10 11 DATE READING CLOCK NET TIHE WATER LEVEL NET DROP TIME (HINUTES) READING (INCHES) 12 4./18/2001 1 2:4.5 6" __ 2 3:15 30 1 1/2" 4. 1/2" 15 3 3:15 6" __ 4- 3:4-5 30 2 1/2" 3 1/2" 14- 5 3:4-5 6" 6 4:15 30 2 1/2" ;5 1/2" 15 16 17 18 19 PERCOLATION RATE 8.6 (HIN./INCH) PERC. HOLE DIA, 6" (INCHES) TEST RUN BETWEEN 4.0 FT. AND 4-.5 FT. 20 COHMENTS: PERC-HOLE WAS PRE-SOAKED FOR 4-+ HOURS PERFORMED BY ALASKA WATER & WASTEWATER I, JEFFREY A. GARNESS, CERTIFY THAT THIS W~S~ERFORMED IN ACCORDANCE WITH ALL STATE AND MUNICIPAL GUIDELINES IN EFFECT ON THIS DATE: DEPTH TO GROUNDWATER DATE DRY 4-/17/2001 DRY 4-/18/2001 DRY 4-/24/2001 AWWC, Inc., Year 2001 ALASKA WATER & WASTE ,/ATER CONSULTANTS. INC. Standard Construction Specifications for Single Family Wells & Onsite Wastewater Disposal Systems I. REFERENCE PROPERTY: Lot 6, Block 6, Southfork West Subdivision. The design is for a three (3) bedroom residence II. DEFINITIONS: 1. Property owner or homeowner: The legal property owner or his/her appointed representative (not AWWC, Inc.). 2. Engineer: Alaska Water & Wastewater Consultants, Inc. (AWWC, Inc.) 3. Contractor: The company hired by the property owner to install the septic system. If the property owner installs the system then he/she would also be the contractor for purposes of this installation. 4. Well Driller: The person or company hired by the property owner to drill the well. 5. DSD &/or MOA: Municipality of Anchorage, Development Services Department, On-Site Water & Wastewater Program. HI. RESPONSIBILITIES: · Property Owner Responsibilities: 1. CONTRACTUAL RELATIONSHIP: The property owner shall contract with the contractor to perform the work outlined in these specifications and plans, in accordance with the attached DSD penuit. There is no contractual relationship between the contractor and the engineer. The engineer shall inspect the work, as required by DSD, so as to document the installation. Final acceptance of the contractor's work rests with the owner and the DSD. 2. SINGLE FAMILY RESIDENCE ONLY: This well and/or septic system design is for a single family residence only. The homeowner is responsible for notifying the engineer if the residence is used as a duplex, business, or multi-family dwelling. In such cases, the installation permit must be obtained from the State of Alaska, Department of Environmental Conservation. 3. DISCLAIMER REGARDING AS-BUILT SURVEY: The validity of the design site plan is limited by the accuracy of the as-built survey provided to the engineer by the property owner or his/her representative. The propet~y owner shall notify the engineer regarding any known inaccuracies associated with the as-built survey. The engineer assumes no responsibility for the accuracy of the survey. 4. UNPLATTED EASEMENTS: The property owner is responsible for notifying the engineer and the contractor of any unplatted easements, not shown on the as-built survey, which the new well or septic system may encroach into. Such easements are typically identified in the property title report. 5. DISCLOSURE OF SITE CONDITIONS: The property owner shall notify the engineer and the contractor of any seasonal groundwater or surface water runoff conditions known to him/her which could potentially effect the operation of the septic system. The proposed septic system must be at least 100 feet from any streams, ponds, creeks, swamps, bogs, or any other surface water as defined by the DSD. This Page I of 7 A WIVC, Inc., Year 2001 disclosure is of particnlar significance when the site evaluation and design work is being done during the winter months when surface waters are frozen and there is snow cover. The property owner shall notify the engineer and the contractor of any known subsurface conditions that would prohibit or restrict the installation of the septic system. Items of concern would include, but are not limited to buried piles of construction debris, undocumented septic systems, areas which consist primarily of fill (imported) soil, subsurface drainage systems, & abandoned wells. 6. DRINKING WATER WELLS: The property owner is responsible for notifying the engineer if, to ins/her knowledge, any of the adjacent properties are used as a duplex, business, or multifamily dwelling. The new septic tank and leachfield must be at least 100 feet from any private well, 150 feet from any class "C" well, and 200 feet from any class "A" or "B" well, unless appropriate waivers are obtained. Furthermore, the property owner shall notify the engineer of any undocumented or abandoned wells, known to him or her, that are located on the subject or adjacent properties. 7. CURTAIN DRAINS: The new drainfield must be at least 20 feet down gradient and 50 feet upgradient from any subsurface drains. This includes foundation drains. The property owner should notify the engineer of any such drains that are not shown on the design drawings for this installation. 8. POST CONSTRUCTION SITE RESTORATION: Unless specifically agreed upon otherwise, the property owner is responsible for final grading of the areas which settle after construction. Prior to awarding the contract, the homeowner should communicate to the contractor any expectations regarding, but not limited to post construction site clean-up, re-landscaping, and restoration of any asphak, fences, trees, decks, ect. that are effected by the construction. All mound type drainfields are required by the MOA to be re-vegetated. The property owner is responsible for this work unless other arrangements are made with the contractor. If the property is being sold, the property owner shall ensure that the aforementioned items are addressed with the buyer, and, if the work is to be completed after the sale of the property, that necessary funds are escrowed to fund the completion of the work. 9. PROPERTY OWNER INSTALLATION OF SEPTIC SYSTEM: If the property owner intends to install the septic system he/she must first have obtained approval from the Municipality of Anchorage, DSD (343-7904). Homeowner installations typically require more time for engineer inspections. The homeowner should discuss the additional costs associated with such inspections with the engineer prior to starting the project. 10. ENGINEER CHARGES TO INSPECT THE INSTALLATION: The property owner is responsible for payment of all the engineer inspection charges. These charges are in addition to the soils testing and design work that was required to obtain the MOA sewer/well permit. The number of inspections will vary depending on the actual field conditions encountered and the construction methods used. If there are any questions by the property owner, or his/her representative, regarding charges for installation inspections they should be discussed prior to beginning construction. AWWC, Inc. will provide you with a written copy of the fee schedule. 11. CHANGES IN THE SCOPE OF WORK: See Section V, "Disclaimers" regarding design changes. See "Contractor Responsibilities", paragraphs 1, 2, & 13. In addition, see "Engineer Responsibilities", paragraphs 2, 4, & 5. · Contractor Responsibilities: 1. PRE-CONSTRUCTION LAYOUT: The contractor is responsible for locating all buried utilities, easements, property lines, surface water setbacks, well radii, and water service lines winch may be encroached upon by the proposed septic system. The contractor shall ensure that all setbacks are flagged by a registered land surveyor, or other appropriate means, prior to construction. AWWC, Inc. field engineers/inspectors will not be responsible for establishing or confirming any of the aforementioned setbacks. The contractor should recognize that the location of all wells, surface waters, structures, and other items[ shown on the design drawings are typically derived from as-built surveys, and municipal records. The as-I Page 2 of 7 A WWC, Inc., Year 2001 built surveys and municipal records (prepared by professional engineers & land surveyors) have been assumed to be accurate for purposes of this design; however, the accuracy has not necessarily been field] verified. Prior to beginning any construction the contractor shall field locate all items which have protective setbacks and verify that there are no encroachment concerns. Any encroachments, for whichI waivers have not been granted, should immediately be brought to the attention of the property owner (or their representative) and the engineer. The test hole pipes shall no~t be removed/abandoned until after the engineer has established their location relative the new drainfield during the In:st inspection of the drainfield installation or during the pre- construction layout. The new drainfield/s must be within a 30 foot radius of the test hole/s used for establishing the design criteria. The contractor should establish the elevation of all existing and proposed system components prior to[ starting construction so as to insure that the necessary grades can be maintained. This is particularlyI significant when the elevation of the existing system components is unknown because clean-outs are notI present, buffed, or non-functional (can't measure down them because of obstructions). It is recognized thatI conditions can be discovered that will materially change the design and the construction costs. I 2. DISCREPANCIES BETWEEN DESIGN DRAWINGS AND SPECIFICATIONS: Construction shall be in accordance with the approved site plan and design drawings, and any special provisions noted on the municipal sewer permit. The contractor is responsible for notifying the engineer of any discrepancies noted on the design plans or drawings, prior to starting work. 3. CHECK GROUNDWATER LEVELS IN TEST HOLE MONITORING TUBES: Prior to beginning construction, the contractor shall check the liquid level in the test hole monitoring tubes to ensure that there has been no change in the groundwater levels that would impact the proposed design. Any rise in the liquid level should be brought to the attention of the engineer so that design changes can be made if necessary. 4. MAXIMUM DEPTH OF DRAINFIELDS: The maximum depth of the draintield is shown on the design drawings or is noted in the narrative portion of the design package. The contractor shall notify the engineer of any inconsistencies noted in the design package. For purposes of this installation, the maximum depth of the drainfield will be based upon takingaI measurement at the deepest part of the excavation between the highest ground elevation encounteredI (usually on the uphill side of the excavation) and the bottom of the trench or bed excavation. TheI contractor shall exercise caution not to remove evidence of the original grade prior to establishment of the[ total system depth. In short, don't remove the organic layer until after the original grade elevations areI established by the inspectin~ engineer. I 5. SUITABILITY OF MATERIALS USED FOR CONSTRUCTION. The contractor shall ensure that all materials being used are in compliance with the most current guidelines established by the Municipality of Anchorage. This includes, but is not limited to, the following: a. Drainrock b. Sand filter material for conventional beds, trenches, or mound systems. c. Sand filter material and pea grovel for intermittent Sand Filters (ISF). d. Anchorage Sand and Gravel (AS&G) "block pea" material for Upflow Filters. It is recommended that the contractor provide the engineer with current sieve analysis' from the sand/gravel supplier to document the suitability of the material. The engineer assumes no responsibility for ensuring that the materials delivered meet the MOA requirements. 6. BURIAL RATING OF TANKS: The contxactor shall ensure that the septic tank, lift station, or holding tank purchased has a burial depth rating suitable for the actual installation. 7. SEPTIC TANK AND STEP TANK SIZES: Prior to purchasing a septic tank or lift station the contractor shall verify that it is adequately sized for the number of bedrooms shown on the permit issued by MOA. The minimum septic tank size is 1000 gallons and the minimum STEP tank size is 1250 gallons. Page 3 of 7 .,t WWC, Inc., Year 2001 These size tanks will handle residences with up to 3 bedrooms. For each additional bedroom over three (3) the septic tank or the STEP tank volume shall be increased by a minimum of 250 gallons. For example, a four (4) bedroom residence must have a 1250 gallon septic tank or a 1500 gallon STEP tank. 8. INSPECTIONS - ENGINEER NOTIFICATION: The contractor shall notify the engineer at least 24 hours prior to starting construction. If deemed necessary, a pre-construction site visit shall take place. The contractor shall coordinate with the engineer any inspections which will be required during weekends, holidays, or before/aftar normal working hours (8:00 am to 5:00 PM). The property owner may incur additional charges for inspections which do not occur during normal business hours. It is the contractor's responsibility to notify the engineer a least 2 hours prior to any inspection. 9. REGULATORY NON-COMPLIANCE. The contractor shall report to the engineer and the property owner any observed condition which would put the septic system in violation of State or Municipal regulations. 10. BACKFILL OLD TEST HOLES: Any remaining test hole excavations shall be filled and mounded as part of this project. Unless instxucted otherwise by the engineer, the old test hole groundwater monitoring pipes shall be removed. 11. FINAL GRADING FOR DRAINAGE: The contractor is responsible for final grading so as to ensure that surface ranoff does not adversely effect the septic system constxucted, adjacent septic systems, or adjacent structures. 12. SOIL COVER REQUIREMENTS: The contractor shall ensure that the final cover over the tank and drainfield is either compacted adequately when backfilling, or mounded sufficiently to ensure that there is adequate soil cover over the tank and drainfield after settlement occurs. If seasonal conditions prevent this, the properoy owner (or his representative) shall be notified that additional fill may be required after settlement occurs. This notification is of extra significance when the property is changing ownership. 13. CHANGES IN CONSTRUCTION COSTS: The contractor is responsible for obtaining approval from the property owner for any additional construction costs associated with design modifications or changing field conditions prior to doing the work. 14. WORKING IN RIGHT-OF-WAYS AND TRESPASSING PRIVATE PROPERTY: The contractor is responsible for coordinating (including payment of encroachment permit fees) all access through public and private properties with the appropriate authorities and/or property owners. Furthermore, the contractor shall inform all parties of any potential impacts to adjacent properties prior to beginning any construction. 15. MAINTENANCE & OPERATIONS MANUALS: The contractor shall provide the homeowner with the manufacturer's installation/maintenance manuals for all system components installed under this contract. If not given directly to the property owner, the manuals should be enclosed in a protective cover (plastic bag) and placed/secured in a prominent location so the property owner can fred it. 16. INNOVATIVE SEPTIC SYSTEMS. START-UP INSPECTIONS: The contractor shall notify Anchorage Tank & Welding Company (272-3543) after the installation of an Intermittent Sand Filter kit or Advantex system (supplied by Anchorage Tank) is installed so that the appropriate start-up inspection can be scheduled. This notification also activates the quarterly maintenance schedule. Such notification is usually not required for BioCycle installations since "BioCycle of Alaska" is typically involved with the installation. The contractor shall contact BioCycle of Alaska (283-9003) regarding any start-up notification requirements. Well Driller Responsibilities: 1. The well driller shall ensure that he has a well permit in possession prior to drilling the well. 2. The well driller shall physically verify that the there are no septic systems, or other potential sources of contamination, within the protective radius of the proposed well prior to drilling it. Page 4 of 7 Inc., Year 2001 · Engineer Responsibilities: 1. SYSTEM DOCUMENTATION: The engineer is responsible for inspecting the installation of the septic system and preparing as-built documentation, to the satisfaction of the M.O.A.. Inspections are performed as necessary to document the construction of the system to the satisfaction of the M.O.A. In all cases, inspections shall be performed as necessary to establish the following: * The original grades at the drainfield/s site * The bottom of all trench/bed excavation * Top of sand on all sand filters * Top of drainpipe * Septic tank, or lift station, or holding tank prior to backfill * Placement of f'ther fabric and insulation * After final grading is completed 2. LIMITED AUTHORITY: The inspecting engineer has no direct authority over the contractors activities or construction/safety practices. Should the engineer identify conditions which dictate a design change, he or she will recommend that work be stopped, and/or the design be modified. If design modifications are necessary, the engineer shall notify the property owner or his/her representative. The inspecting engineer does not have the authority to direct the contractor to modify the system design in such a way that it would be in violation of State or MOA regulations. 3. SEPTIC TANK INTEGRITY: The engineer shall inspect the condition of the existing septic tank and determining its suitability for re-use. If the engineer determines the septic tank to be structurally unsound, it must be replaced. 4. COORDINATION OF DESIGN CHANGES WITH THE MOA: If design changes are necessary, the engineer will coordinate the approval of the changes with the MOA. The contractor does not have the authority to proceed with any design modifications until verbal or written approval is obtained from the MOA. 5. COORDINATION OF WAIVERS: If, during construction, it is determined that a waiver will be required in order to install the system as designed, the engineer will apply for the necessary waiver/s to the appropriate State or MOA regulatory bodies. The engineering services and State/MOA fees associated with such waivers will be additional charges to the property owner, over and above the installation inspection fees charged by AWWC, Inc. SECTION IV. CONSTRUCTION GUIDELINES: Construction shall be in accordance with the approved site plan and design drawings and any special provisions noted on the municipal well and/or sewer permit. All materials, components, workmanship, and constmctiun practices shall comply with the Municipality of Anchorage's latest ordinances regarding wells and septic systems, as well as DSD policies. The failure of the inspecting engineer to notice a material or consm~ction non-compliance does not relieve the contractor of his/her responsibility to correct such a deficiency. · Septic Tank, Holding Tank, or Lift Station Installation: I. The burial rating of the tank shall be adequate for the actual burial depth encountered. 2. The tank shall be level and sufficiently bedded to prevent settling or shifting of the tank. 3. All standpipes on the tank shall extend a minimum of 12 inches above final grade. 4. Tanks installed with less than 4 feet of cover shall be insulated. See "Contractor Responsibilities", paragraph 12 regarding final soil cover. 5. The sewer service line from the house to the tank shall be sloped a minimum of 1/4" per foot, unless prior approval is obtained from the engineer. Page 5 of 7 AWWC, Inc., Year 2001 6. The inlet and outlet lines from the tank shall be bedded in drainrock or the soil shall be adequately compacted to prevent future settlement of the soil. 7. A foundation clean-out will be installed ( 1-4 feet from the house) if one does not currently exist. 8. Post tank clean-outs shall be installed per MOA requirements. Does not apply to holding tanks or lift stations with pressurized lines. 9. In high groundwater areas, all tanks shall be anchored to resist buoyancy forces when there is not adequate soft cover to resist the uplift force. The engineer shall make this determination. 10. The l'mal soil cover shall be graded so that there is positive drainage away from tank. 11. All holding tanks and lift stations shall have an audible and visible alarm inside the residence. 12. All lift stations shall be wired in compliance with all MOA guidelines and the Uniform Electrical Code. A municipal electrical permit and inspections must be obtained in areas where required by the Municipality of Anchorage. 13. The contractor shall remove the old tank, or abandon it in compliance with the Uniform Plumbing Code (UPC). The contractor is solely responsible for the abandonment procedure. 14. ISF AND ADVANTEX INSTALLATIONS: The control panel for the Intermittent Sand Filter and Advantex systems shall be located outside the residence, for easy access during inspections. A remote alarm must be installed inside the residence as per DSD requirements. Mounting the panel directly to an exterior wood wall should be avoided because the closing of the relays creates a "clanking" noise that may be offensive to the property owners. 15. ISF INSTALLATIONS: The air compressor shall be equipped with 0 to 10 psi gauge for the purpose of mointoring air fiow to the sand filter. The pressure gauge will be located so that it is easily monitored by the property owner. · Installation of Conventional Absorption Bed & Trenches: 1. Excavate the proposed bed/trench to the dimensions shown on the design. The bottom of the excavation shall be within 2 inches of level (2 inch maximum variation between high and low spots). If the sidewalls or bottom of the excavation become smeared, they must be raked or scarified before placement of the filter sand or drainrock. 2. The trench or bed should be at least 5 feet from the test hole excavation. 3. All soil tests and excavation depths are advisory to the design and are to be verified in the field by the engineer. If design changes are necessary, and the changes effect the contractor charges to the property owner, the contractor shall obtain approval from the property owner prior to proceeding with the work. 4. Once the draiurock is installed, the distribution pipe is to be placed level (0.02 feet difference between high and low shots) with the perforations faced downward. Draiurock is then to be placed over the distribution pipe, to provide a minimum of 2 inches of cover over the pipe. The drainrock shall not be pyramided over the drainpipe but shall be the same elevation over the entire trench/bed width. 5. A silt barrier must be installed between the final drainrock layer and the native soil backfill. The silt barrier shall cover the entire drainrock surface. 6. Monitor tubes shall be installed at the locations shown on the design drawings, and extend a minimum of 12 inches above final grade. The portion of the monitoring tube extending through the draiurock shall be perforated from the bottom of the trench/bed to the invert of the distribution pipe. 7. Backfill over the final draiurock layer must not be less than 2 feet. Insulation must be installed when the backfill depth is less than 3 feet. The insulation shall cover the entire width of the trench/bed, the contractor shall "shoof' the final grades to ensure cover depth is adequate, prior to notifying the engineer that the work is complete. The final cover over the drainfield must graded so that there is no potential for water to pond over the tranch/drainfield. See "Contractor Responsibilities", paragraph 12 regarding final soil cover. 8. If an alternator valve was installed with this design the contractor shall provide a functional valve key to[ the propert~ owner. I SECTION V: DISCLAIMERS Page 6 of 7 AIHVC, Inc., Year 2001 · UNFORESEEABLE SITE CONDITIONS: The design of this septic system, prepared by AWWC, Inc., was based upon a limited evaluation of the soil, groundwater, and site conditions. The extent of the evaluation is consistent with standard engineering practice in the field. Furthermore, this design was evaluated and approved by the engineers or technicians on staffat the Municipality of Anchorage, DSD, based upon the information provided to them. Occasionally, during cons~'uction, unforeseeable subsurface conditions (high groundwater, poor soils, buried debris,....) are encountered that make the proposed installation not feasible. In such cases it is typically necessary to do more soils testing, groundwater monitoring, and design work. These additional engineering services will be performed on a fee basis at an hourly rate. AWWC, Inc. will obtain verbal authorization from the property owner (or his/her representative) prior to proceeding with the work, and will provide a writtun estimate if requested. The property owner should discuss with the contractor any changes in the in~tallation cost associated with the design changes. · IF THE PROPERTY' BEING SOLD AND FUNDS ESCROWED FOR. THE UPGRADE, it is important to bear in mind that the ability to upgrade the septic system on this property is not 100% certain (for the reasons stated in the previous paragraph). There is always the possibility that conditions could be encountered that would prevent the installation of anything other than a holding tank. Although such a situation would be rare, it is important that all parties recognize that such a scenario is possible. · SEPTIC SYSTEM PERFORMANCE: The design of this septic system is based upon limited soils testing, groundwater monitoring, and a visual assessment. It is possible that the actual soil conditions are less favorable then the testing data indicated and that adverse, unforeseeable, changes in the surface/subsurface water conditions could impact the performance of the system. Numerous other factors, out of the con~'ol AWWC, Inc., may adversely effect the long term perfommnce of the system. Such factors include, but arc not limited to, excessive number of residents in the house, plumbing leaks, the use of septic system additives, failure to pump septic tank regularly, failure to alternate drainfield~ (when this is an option), or/and excessive use of water. Given these variables, it is not possible to warrantee the performance of a septic system. IBy proceeding forward with this Installation, the Engineer, Well Driller, Contractor, nnd Property [ Owner agree that they have read these specifications and agree to accept the terms and conditions outlined In them. Page 7 of 7