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SKYHILLS PH 2 BLK 2 LT 4
5kyhills Block Lo1' 4 #011 - 122-35 GARNESS ENGINEERING GROUP, Ltd ENGINEERING SALES CONSULTING: --- -- --__ _ October 4, 2019 Municipality of Anchorage Development Service Department On -Site Water & Wastewater Program 4700 Elmore Road Anchorage, AK 99507 Ref: Skyhills Phase 2; Block 2, Lot 4 — Septic Tank Addition To whom it may concern: The existing home underwent renovation and per the homeowner the final bedroom count is 5. The house is served by an onsite septic system and public water. Due to the renovation and the change in bedroom count, the owner wants/needs to upgrade the septic system to serve 5 bedrooms. Per MOA records, the existing drainfield is 1026 ft2 and the application rating is 1.2 gpd/ft2. A 5 -bedroom home with a 1.2 application rating needs 625 ft2 of drainfield. In short, our drainfield exceeds the minimum requirement of 625 ft2 (1026 ft2). Instead of showing an alternate site due to the increase in bedrooms, we are proposing to re -build the drainfield if/when the drainfield fails. There is an existing 1,250 -gallon steel septic tank in place that is approximately 19 years old. We are proposing to decommission the existing septic tank and install a new 1500 -gallon HDPE Greer tank rated for 10' burial. We are unaware of any adverse impacts this installation will have on adjacent wells or septic systems. If you have any questions, please contact us at 337-6179. Thank you I - . P. E., M. S. 3701 East Tudor Road, Suite 101 * Anchorage, Alaska 99507-1259 Phone: (907) 337-6179 * Fax: (907) 338-3246 * Website: www.garnessengineering.com Municipality of Anchorage Community Development Department Page 1 of 3 On -Site Water & Wastewater Program 4700 Elmore St. • P.O. Box 196650 Anchorage, AK 99519-6650 • http://www.muni.org/onsite • (907)343-7904 ON-SITE WASTEWATER INSPECTION REPORT Permit Number: OSP191459 PID Number. 011-122-35 ❑ New N Upgrade Name: CHRIS BORST ABSORPTION FIELD EXISTING ❑ Deep Trench ❑ Shallow Trench ■ Bed ❑ Mound Address: 8000 SKYHILLS DRIVE *ANCHORAGE, AK 99502 ❑ Other Phone: No. of Bedrooms: Soil Rating: Total Depth from original grade: 360-1998 5 GPD/Sq. FL Ft. LEGAL DESCRIPTION Depth to pipe invert from original grade: FL Gravel depth beneath pipe: Ft. Subdivision: SKYHILLS PHASE #2 Block: Lot: 2 4 Fill added above original grade: 9G Grave glh: \ Ft. Township: - Range: - Section: - Gravel width: Ft Beds Number of lines: Distance between lines: Ft. SEPARATION DISTANCES Total absorption Number of trenches: Dist. between trenches: To Septic Absorption Lift Holding PublicfPrivate From Tank Field Station Tank Sewer Lines SCL FL pt, Well N/A N/A 25'+ TANK ■ Septic ❑ S.T.E.P. ❑Holding ❑ Other Manufacturer. Capacity: Surface Water 100'+ EXISTING GREER 1500 N/A Gal. Lot Line 5'+ EXISTING _ Material: Number of compartments: HDPE (10' BURIAL) 2 Foundation 10'+ EXISTING _ LIFT STATION Curtain Drain NONE KNOWN Manufacturer. C Gal. Remarks: "Pump on" level at:Pump oft level at: High wateralar at: PER THE CONTRACTOR, OLD TANK WAS DECOMMISSIONED PER UPC. Pump Make &Moder Electrical Inspections performed by: PIPE MATERIAL House to tank EXISTING/D3034 Tank to EXISTING/D3034 dralnfield Installer WILCO Drainfield EXISTING CO/MT D3034 Inspector GEG, Ltd. BENCH MARK (Assumed elevation) 99.04 Ft. Inspection Location and Description: Dates: 1st 10/12/19 2nd - 3rd - 4th - TOP OF MANHOLE ENGINEER'S SEAL Community Development Department Approval�.•� 'MIL 4 OF '���� • �<?�'����••�•`;`c9�� Conditional approval: Date: ............................. ........ 0.....�. ffy.y ....arn...s.,� Aff •�0� • �•. C ' 795 ;' = e #�o SFO '' � �.• •''�,``':: Approved: w� `-' Date: " ' •.. � �• LICEN*410P;'FES;; #AECC884 VAL PERMIT NUMBER: RECORD DRAWING PARCEL NUMBER: OSP191459 011-1-1 22-35 A I B C DBL1 32.59 19.59 74.77 DBL2 32.09 19.97 75.62 MH 28.77 22.59 80.79 ST 26.30 26.62 86.55 DBL1 27.75 27.46 86.50 DBL2 28.13 27.82 86.58 GWMT 29.42 27.32 85.22 10' UTIL. ESMT. N SCALE: 5 1"=40' NEW 1500 GALLON HDPE GREER TANK RATED FOR 10 FOOT BURIAL _ I �:.. `DRIVEWAY EXISTING 5 a; • 1 BEDROOM HOUSE f•: - ''• GARNESS MI = ENGINEERING = SALES - CONSULTING :-- -- V) PREPARED FOR: PHONE NUMBER: OLD 1250 GALLON STEEL CHRIS BORST w � SEPTIC TANK 2 OF 3 PROJECT/LEGAL DESCRIPTION: DECOMMISSIONED PER UPCA DRAWN BY: SKYHILLS PHASE #2; BLOCK 2, LOT 4 PNB TYPE OF WORK: DATE: RECORD DRAWING 10/14/19 oDRAINFIEEXISTING L� N SCALE: 5 1"=40' NEW 1500 GALLON HDPE GREER TANK RATED FOR 10 FOOT BURIAL _ I �:.. `DRIVEWAY EXISTING 5 a; • 1 BEDROOM HOUSE f•: - ''• .,`-Mla 11 OFAV•`' ,�� — AV "'•.; 9 �( .. 49 ...... _o f ,. r . �r............... U. .Tv Sey ness �.��J1°. C�-79 3 ��_� PROFESS \Cl o�04 LICENSE �N1VAIL � #AECC884 GARNESS ENGINEERING GROUP, L = ENGINEERING = SALES - CONSULTING :-- -- 3701 E. TUDOR ROAD, SUITE 101 -ANCHORAGE, AK 99507 -PHONE (907) 337-6179 -FAX (907) 338-3246' WEBSITE: w .gamessengineedng.com PREPARED FOR: PHONE NUMBER: PAGE NUMBER: CHRIS BORST 360-1998 2 OF 3 PROJECT/LEGAL DESCRIPTION: DRAWN BY: SKYHILLS PHASE #2; BLOCK 2, LOT 4 PNB TYPE OF WORK: DATE: RECORD DRAWING 10/14/19 .,`-Mla 11 OFAV•`' ,�� — AV "'•.; 9 �( .. 49 ...... _o f ,. r . �r............... U. .Tv Sey ness �.��J1°. C�-79 3 ��_� PROFESS \Cl o�04 LICENSE �N1VAIL � #AECC884 MUNICIPALITY OF ANCHORAGE On -Site Water & Wastewater Program PO Box 196650 4700 Elmore Road Anchorage, Alaska 99519-6650 Phone: (907) 343-7904 Fax: (907) 343-7997 http://www.muni.org/onsite On -Site Wastewater Disposal System Permit Permit Number: OSP191459 Work Type: SepticTank Upgrade Tax Code Number: 01112235000 Site Legal Address: SKYHILLS PH 2 BLK 2 LT 4 G:2222 Site Mailing Address: 8000 SKYHILLS DR, Anchorage Owner: BORST CHRISTOPHER J & ERICA L Design Engineer: GARNESS ENGINEERING GROUP LTD This permit is for the construction of: ❑ Disposal Field 0 Septic Tank ❑ Holding Tank ❑ Privy Effective Date Expiration Date Lot Size in Sq Ft: Total Bedrooms: llepa�•tmeut 10/11/2019 10/10/2020 42293 ❑ Private Well ❑ Water Storage All construction shall be in accordance with: 1. The attached approved design. 2. All requirements specified in Anchorage Municipal code Chapters 15.55 and 15.65 and the State of Alaska Wastewater Disposal Regulations (18AAC72) and Drinking Water Regulations (18AAC80) 3. The wastewater code requires inspections during the installation. The engineer shall notify the Development Services Department per AMC 15.65. Provide notification by calling (907) 343-7904 (24/7). 4. From October 15 to April 15, a subsurface soil absorption system under construction during freezing weather shall be either: a. Opened and Closed on the same day, or b. Covered, sealed, and heated to prevent freezing Received B Issued By: Date: /0////(9/ C Date: d///7 5 MUNICIPALITY OF Community Development Department Development Services On -Site Water & Wastewater Program Parcel I.D. 011-122-35 ANCHORA On -Site SewerMell Permit Application For A Single Family Dwelling Property owner(s) CHRIS & ERICA BORST Mailing address 8000 SKYHILLS DRIVE *ANCHORAGE, AK 99502 Site address 8000 SKYHILLS DRIVE *ANCHORAGE, AK 99502 Phone: 90y�MQ904Fax: 907- Day phone 907-360-1998 Legal description (Sub'd, Block & Lot) SKY HILLS PHASE 2; BLOCK 2, LOT 4 Legal description (Township, Section & Range) Lot Size APPLICATION IS FOR: Single Family (SF) ( ® all that apply) (w/wo ADU) Absorption Field ❑ Septic Tank Multiple Dwellings Holding Tank ❑ Privy ❑ Private Well ❑ Water Storage ❑ Sq. Ft. Number of Bedrooms APPLICATION IS AN: Initial ❑ Upgrade Renewal ❑. 5 THIS APPLICATION INCLUDES A VARIANCE/ WAIVER REQUEST FOR: N/A TYPE OF DEWELLING: Single Family (SF) (w/wo ADU) Duplex (D) ❑ Multiple Dwellings ❑ (SF and/or D) Distance: _ I certify that the above information is correct. I further certify that this is in accordance with applicable Municipal codes. GARNESS ENGINEERING GROUP, Ltd. (Signature of property owner or authorized agent) Permit/Rush Fees: t u �a Q ajor Fees: _135 Date of Payment: to �� 1 I Date of Payment: C) Receipt Number: lot/ 5I Receipt Number: 3 G Permit No. d :5 pj9 jg5q Waiver No. (Rev. 01 /11) GARNESS ENGINEERING GROUP, Ltd - - - ENGINEERING SALES() CONSULTING — - October 4, 2019 Municipality of Anchorage Development Service Department On -Site Water & Wastewater Program 4700 Elmore Road Anchorage, AK 99507 Ref: Skyhills Phase 2; Block 2, Lot 4 — Septic Tank Addition To whom it may concern: The existing home underwent renovation and per the homeowner the final bedroom count is 5. The house is served by an onsite septic system and public water. Due to the renovation and the change in bedroom count, the owner wants/needs to upgrade the septic system to serve 5 bedrooms. Per MOA records, the existing drainfield is 1026 ft2 and the application rating is 1.2 gpd/ft2. A 5 -bedroom home with a 1.2 application rating needs 625 ft2 of drainfield. In short, our drainfield exceeds the minimum requirement of 625 ft2 (1026 ft2). Instead of showing an alternate site due to the increase in bedrooms, we are proposing to re -build the drainfield if/when the drainfield fails. There is an existing 1,250 -gallon steel septic tank in place that is approximately 19 years old. We are proposing to decommission the existing septic tank and install a new 1500 -gallon HDPE Greer tank rated for 10' burial. We are unaware of any adverse impacts this installation will have on adjacent wells or septic systems. If you have any questions, please contact us at 337-6179. Thank you for your assistancf. rely Pre!eV ga es , P. E., M.S. 3701 East Tudor Road, Suite 101 * Anchorage, Alaska 99507-1259 Phone: (907) 337-6179 * Fax: (907) 338-3246 * Website: www.garnessengineering.com GEG, Ltd. HAS AN 8 PAGE SPECIFICATION LETTER THAT PERTAINS TO THIS DESIGN. BY PROCEEDING FORWARD WITH THIS INSTALLATION, THE ALL ADJACENT LOTS ARE ENGINEER, WELL DRILLER, CONTRACTOR AND SERVED BY PUBLIC WATER PROPERTY OWNER AGREE THAT THEY HAVE READ THESE SPECIFICATIONS AND AGREE TO ACCEPT THE TERMS AND CONDITIONS OUTLINED. EXISTING DRAINFIELD; C/O ON NORTH END OF TRENCH COULD NOT BE LOCATED, MUST BE FOUND AND EXTENDED ABOVE GRADE NEW SEWER LINE FROM TANK TO DRAINFIELD PROPOSED 1500 GALLON HDPE GREER TANK RATED FOR 10 FOOT BURIAL; INSTALL DOUBLE CLEANOUTS BEFORE AND AFTER TANK; ENSURE TANK IS 5'+ FROM DECK PILES AND 10' FROM THE HOUSE FOUNDATION; 10' UTIL. ESM- DRAINFIELD TO BE EXPOSED TO ENSURE 5' SEPARATION -------------------* ---- — — ------- ---------- r- -� W I EXISTING 1250 GALLON STEEL •+' • "'�� +•• S1� SEPTIC TANK TO BE ' "'•' ' •'•i ; • r W I DECOMMISSIONED PER UPC ° ° T1 •,• �,'• : '.' I � I � / i,•. � DRIVEWAY ••• ••. j ol EXISTING f i DRAINFIELD SKYHILLS PHASE 2; •• • I BLOCK 2, LOT 4 �I I GARNESS ENGINEERING GROUP, Ltd -- -----.-------- ENGINEERING -SALES -,CONSULTING = --- - -- -- -- 3701 E. TUDOR ROAD, SUITE 101 ' ANCHORAGE, AK 99507' PHONE (907) 337.6179' FAX (907) 338-3246' WEBSITE: w .gamessengineeKng.com PREPARED FOR: PHONE NUMBER: PAGE NUMBER: CHRIS AND ERICA BORST 1 907-360-1998 1 1 OF 1 PROJECT/LEGAL DESCRIPTION: DRAWN BY: SKYHILLS PHASE 2; BLOCK 2, LOT 4 PNB TYPE OF WORK: DATE: I- SEPTIC TANK UPGRADE DESIGN 10/7/2019 -*wL IL r � � .,`P ,,,...... ♦♦♦ ............., ..... ........... .............. ....a - - ffre . Garness Jv. # C) CE -17 95 =i ♦♦�F,p�o.., �IJ,�!!�F��� 444�'ROFESS\DSP �� LICENSE 1rrrjL`Z\ll** #AECC884 / Permit Number:. SW010,~86 CHRIS BORST Addrem$: P.O. BOX 111966 * ANCHORAGE, AK 99511 Phone: No. of Bedmome: (907) 348-8840 4 LEGAL DESCRIPTION 4 2 SKYHILLS #2 WELL: [] New 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 vAwv.ci.anchorage,ak.us (907) 343-7904 On-Site Wastewater Disposal System and/or Well Inspection Report PID Numbe~ 011-122-35 [] Upgrade~/"' Wastewater System: · New Page 1 of 3 [] Upgrade ABSORPTION FIELD EDeep Trench rtS~=tlow Trench rlBed ~Uou~ ~r 0.6-1,2 ~ ~ 12.10 M~ ~~~ ~~ 6.93 5.17 M~ ~ O ~ 74 2.5 ~ 1 SEPARATION DISTANCES Well 100'+ 100'+ -- -- 25'+ Surface Water 100'+ 100'+ - -- -- Lot Une ,5'+ 10'+ -- - - Foundation 5'+ 10'+ -- -- -- Curtain Dmin NONE KNOWfl Remarks: NORTH MT WAS SET TOO HIGH. SOUTH MT IS CORRECT. CINDY ELLIS D 3034/ F-810 10/6-9/2001 · Sept~ m Holalng a $.T.F.P. ANCHORAGE TANK 1250 STEEL LIFT STATION ~ BENCH MARK TOP OF CAST IRON FOUNDATION C.C. COORDINATED FIELD DESIGN CHANGE WITH MOA ONSITE DEPT. Inspections performed by: AKWWC, INC. Department of Health~_n.~ H,..~an R~viewed and approved by: C I ~ - ~ Dates: 1st 10/6/2001 2nd 10/8/2001 3rd 10/9/2001 Services approval/ / ,-, . . uate. / 102.92 pErMIT NUMBE~: SW010586 AS-BUILT DRAWING PN~CEL ID NUuBE~ 011-122-35 AL'~3~NATE DRNNRrln D~NfiELDS~ I- N[W 1250 GALLON SEPT1C TANK /~,PROXIMAT1E LOCAllON OF ~ WAI~R UNr ~ A B ST1 15.8 43.9 DBL2 29.5 56.8 , '~....:-.. CO1 52.4 89.8 MT1 53.1 90.3 C02 38.8 23.1 t · '."" MT2 ;59.4 23.9 . CHRIS BORST 348-8840 2 OF SKY HIL~ SUBDIVISION ,2; LOT 4, BLOCK 2, '~~~~ ~"' .........'" AS-BUILT DRAWING OF SEPTIC SYSTEM UPGRADE pER~ff NUM~£R: SW010386 AS-BUILT DRAWING TOP OF TANK AT.--~ ~ INLET =,, gl.84 ~. NEW 1250 GALLON I~ oF BUNG SEPTIC TANK AT INLET = 91,42 99.19 - 99.51~ ,~TOP OF TANK AT OU31.LrT = 91.84. ~'-IN'V~RT OF BUNG AT OU'I'L~ -- 91.02 PARCEL ID NUMBER: 011-122-~$ 95.45+ OR~GIN, A~ GRAD~-~ OF' PIPE - 90.93 (AV~.) ALASIGX_ WATER & WASTEWATER CONSULTANTS. INC. PRE. PARED FOR: PHONE NUMBER; CHRIS BORST (907) 348-8840 SKY HILLS SUBDIVISION ~2; LOT 4. BLOCK 2 6/3/2002 J.W.M. 1" = 40' 30F3 AS-BUILT PROFILE DRAWING OF SEPTIC SYSTEM UPGRADE 7953 .' · " ~,,~ - CONSULTANTS. INC. ISOIL LOG PERCO~TION TESTI ~g~ O~CRI~ON: s~ HI~ J~; LOT 4, BL~K ~ P~.o~v~o ro~: c.R,s ,o,~ OAm ~o/~/~ 'O~."{J~l ....'~ (feet) ;;;~ OR~I~ ~ ITEST HOLE IIIII I ML -:.~... 20 COHHENTS: SOIL CLASSIFICATIONS GW ~ ORG GP ~ ML GM CL GC OL SW NH SP CH SH OH SC DEPTH TO DATE GROUNDWATER DRY 10/9/01 DRY 10/18/01 SEE SITE PLAN FOR TEST HOLE LOCA'nON DATE READING 10/11/2001 1 2 4 5 6 7 9 10 11 12 PERCOLATION RATE TEST RUN BETWEEN CLOCK, NET TIHE WATER LEVEL NET DROP TIME (HINUTES) READING (INCHES) 12:45 - 10' - 12:54 9 0' 10' 12:54 - 10' - - 1:03 9 0' 10' 1:04. e 10' - 1:13 9 0"' 10" 1:14 - 6" - 1:20 6 0' 6" 1:21 - 6' - 1:27 6:15 0' 6" 1:28 _ 6' - 1:34 6:20 0' 6' 1.06 (MIN./INCH) PERC. HOLE DIA. 6' (INCHES) 7.5 FT. AND 8.0 FT. NO PRESOAK REQUIRED PERFORMED BY AKWWC, INC.. I, JEFFREY A. GARNESS, CERTIFY THAT THIS WAS PERFORMED IN ACCORDANCE WITH ALL STATE AND MUNICIPAL CUIDEUNES IN EFFECT ON THIS DATE: 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 PERMIT Initial Date Issued: Sap 24, 2001 Expiration Date: Sep 24, 2002 Permit Number: SW010386 Legal Description: SKYHILLS PHASE 2 BLK 2 LT 4 Design Engineer: 0041 AK Water & Wastewater Consultant Owner Name: Chris Borst Owner Address: PO Box 111966 Anchorage, AK 99511- Parcel ID: 011-122-35 Site Address: Lot Size: 42293 SQ. FT. Total Bedrooms: 4 Permit Bedrooms: 4 This permit is for the construction of: [] Disposal Field [] SepticTank [] Holding Tank [] Privy [] Private Well [] Water Storage construction must be in accordance with: 1. The attached approved design. 2..NI requirements specified in Anchorage Municipal Code Chapters 15.55 and 15.65 and the State of AJaska 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. I5. The following special provisions; ~ AT THE TIME THE PROPOSED ABSORPTION FIELD ES BEING CONSTRUCTED THE ENGINEER SHALL' 'PERFORM A SOILS/BEDROCK TEST AT THE PROPOSED LOCATION OF THE REPLACEMENT ABSORPTION FIELD SITE. Date: ® Municipality ®f Anchorage `�t � �3 On -Site Water and Wastewater Program (907) 343-7904 S A E3T Y Certificate of On -Site Systems Approval Parcel I.D. 011-122-35 1. GENERAL INFORMATION: Complete legal description Skvhills Phase #2; Block 2. Lot 4 Location (site address) 8000 Skvhills Dr *Anchorage, AK 99502 Expiration Date: 10^ (9-2-C192_0 Current Property owner(s) Chris Borst Day phone 907-360-1998 Mailing address Real Estate Agent 8000 Skvhills Dr *Anchorage, AK 99502 2. TYPE OF DWELLING: ® Single Family (w/wo ADU) ❑ Duplex ❑ Multiple Dwellings (Single Family and/or Duplex) 3. NUMBER OF BEDROOMS: 5 Day phone 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 $C Waiver Fee $ Date of Payment o J �1 14 1-k Date of Payment Receipt Number ��] o 6\ Receipt Number COSA # 0SCI q l L1q '�,5 Waiver # 6. 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: t G 1 r.5 17 In conducting this evaluation, GEG provided an engineering evaluation of the well and/or septic system o OF in accordance with the guidelines and regulations established by the Municipality of Anchorage and o �.•44 industry practices. The reported results describe the condition of the system/s on the datels of the O©�C�•• f •, �� 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 = � T and septic systems depend upon a variety of variables, including but not limited to, soil conditions, .� -1 j •••.•..D 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 theQ Jrey A. Gar s: a system/s; therefore, GEG makes no warranty (express or implied) regarding the future performance of '! D the well or septic stem. GEG makes no representation whether alternative well or septic stem (CE -7953 a P Y P P Y Q9 IL:ceO can be installed on the property in the event either of the current systems fail to perform adequately in ��f r i O.`� the future. The content of this report is for the sole benefit of the person/party that retained GEG to 4©edprofessio^oc� 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. DSD SIGNATURE System #1 Approved for�L y S bedrooms System #2 Approved for Disapproved Conditional approval for bedrooms - bedrooms, with the following stipular ByOriginal Certificate Date: 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 _ Nitrate Advisory Septic System Advisory Arsenic Advisory Well Flow Advisory Other COSA blue sheet 10-.10,12.doc Legal Description: Skyhills Phase #2; Block 2, Lot 4 Parcel ID: 011-122-35 If more than 1 septic system on lot: COSA Checklist # of 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 C Static Ovate eat beginning of test ft. ments B. TANK DATA Age of tank(s) New years Tank type/material Te: DPE Measured operating fluid level in septic tank New ® Standpipes/foundation cleanout per record drawing Date of pumping New D. ABSORPTION FIELD DATA Which system tested (date installed) 2001 ❑® ALL standpipes present per record drawing Total measured depth from grade 13.3 ft (max) Measured depth to pipe invert from grade 2.58+ ft (min) ❑ N/A — pressurized field @ south CO ❑ Monitor tubes go to bottom of effective. If not, state depth into effective - Structure served by this system Well production at time of test Water storage tank volume gallons Well d�rmbacteria oliform test? ❑ Yes © No ❑ C is Negative Nitrate mg/L ❑ Nitrate less than MRL (ND) Arsenic ug/L ❑ Arsenic less than MRL (ND) Collected by Date of Sample C. LIFT STATION ❑ Required maintenance completed Age of lift station years Lift station material Comments• Adequacy test date '1orzu19 Results FDPass For 5 bedrooms Fluid depth prior to test 0 in Water added 605 gal New depth 3 in Elapsed time 0 min FMI Code -required soil cover over field Final fluid depth 0 in 0 System presoaked Absorption rate 750+ gpd (Required if vacarit for greater than 30 days prior to Any rejuvenation treatment (past 12 months) No date of test) Gallons introduced 2,016 gallons If yes, enter date Cohiments/Deficiencies: Tre-soaked on 10/1/19 ^MT1 does not extend to bottom of drainfield 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' 0 Yes if No Community Sewer Manhole/Cleanout > 100' '� Yes if No ft M Yes if No ft Neighboring Tank > 100' ❑ Yes if No ft Private Sewer/ ine > 25' ❑ Yes if No ft Absorption Field on Lot > 100' ❑ Yes if No ft o ding Tank > 100' ❑ Yes if No ft Neighboring Absorption Fields > 100' if No ft Animal Containment > 50' ❑ Yes if No ft es if No ft ft if septic tank is under driveway comment below Manure/Animal Excreta Storage > 100' Communi er Main > 75' ❑ Yes if No ft [] Yes if No ft From Septic/Holding Tank on Lot to: (Please enter distances if less than required) Building Foundations > 10' 0 Yes if No ft Surface Water > 100' [✓ Yes if No ft Property Line > 5' M Yes if No ft Wells on Adjacent Lots: Q Yes Absorption Field > 5' M Yes if No ft Private Wells > 100' M Yes if No ft Water Main > 10' El Yes if No ft Community Wells > 200' Q Yes if No ft Water Service Line > 10' El 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 Property Line > 10' M Yes if No ft Wells on Adjacent Lots: Water Main > 10' Q Yes if No ft Private Wells > 100' El Yes if No ft Water Service Line > 10' [D Yes if No ft Community Wells > 200' 121 Yes if No ft Surface Water> 100' 0 Yes if No ft F. ENGINEER'S COMMENTS *Not measured from deck piles - -- G. ENGINEER'S CERTIFICATION I 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 M #AECC884 GARNESS ENGINEERING GROUP, Ltd – - __ -- ENGINEERING v SALES- CONSULTING - ------ -- —j October 18, 2019 Municipality of Anchorage Development Service Department On -Site Water & Wastewater Program 4700 Elmore Road Anchorage, AK 99507 Ref: Skyhills Phase 2; Block 2, Lot 4 — Explanation of COSA Adequacy Test To whom it may concern: The drainfield was pre-soaked on 10/1/19 with 2,016 gallons of water and then tested the following day (10/2/19) with 602 gallons. The drainfield is sized for five (5) bedrooms and although only 602 gallons was introduced into the drainfield, the entire amount of water was absorbed in 125 minutes. In short the absorption rate of the drainfield is well above the MOA requirement of 750 gallons per day for a five (5) bedroom drainfield. If you have any assistance. ly, Z uestions, please contact us at 337-6179 P.V., M.S. Thank you for your 3701 East Tudor Road, Suite 101 * Anchorage, Alaska 99507-1259 Phone: (907) 337-6179 * Fax: (907) 338-3246 * Website: www.garnessengineering.com PLAT NO. 99-33 SKYHILLS SUED., PHASE 2 LOT 4, BLOCK 2 42,293 S.F. EVENSON COURT 0 M N 89°54'50"E 217.07' BUILDING DETAIL -33 w ¢ V SCALE: 1"=20' p AS - B U I L T I HEREBY CERTIFY THAT I HAVE SURVEYED THE GASTALDI LAND PROPERTY DEPICTED ABOVE AND THAT NO ENCROACHMENTS EXIST EXCEPT AS INDICATED. SURVEYING. LLC IT IS THE RESPONSIBILITY OF THE OWNER TO JEFF A. GASTALDI, R.L.S. DETERMINE THE EXISTENCE OF ANY EASEMENTS, '.2000 E. DOWLING RD., SUITE 8 COVENANTS OR RESTRICTIONS WHICH 00 NOT ANCHORAGE, ALASKA 99507 APPS ON THE RECORDED SUBDIVISION PLAT. PHONE 248-5454 UNDER NO CIRCUMSTANCES SHOULD ANY DATA GRID DATE HEREON BE USED FOR CONSTRUCTION OR FOR SW2222 10/18/2019 ESTABLISHING BOUNDARY OR FENCE LINES. ANCHORAGE RECORDING DISTRICT, ALASKA F.B. J08 NO. 02-05 SHS242 NOTE: NO CORNERS SET THIS DATE ®®00sHR8 4 ®P .OF q<q ST *: 9TH ®a LS -6091 Is/3o 19 na s °7osafono� � (wX) 111=40' GARNESS ENGINEERING GROUP, Ltd - ENGINEERING SALES CONSULTING - - - October 18, 2019 Municipality of Anchorage Development Service Department On -Site Water & Wastewater Program 4700 Elmore Road Anchorage, AK 99507 Ref: Skyhills Phase 2; Block 2, Lot 4 — Explanation of COSA Adequacy Test To whom it may concern: The drainfield was pre-soaked on 10/1/19 with 2,016 gallons of water and then tested the following day (10/2/19) with 602 gallons. The drainfield is sized for five (5) bedrooms and although only 602 gallons was introduced into the drainfield, the entire amount of water was absorbed in 125 minutes. In short the absorption rate of the drainfield is well above the MOA requirement of 750 gallons per day for a five (5) bedroom drainfield. If you have any questions, please contact us at 337-6179. Thank you for your assistance. / I l y, Presi P. V, M. S. 3701 East Tudor Road, Suite 101 * Anchorage, Alaska 99507-1259 Phone: (907) 337-6179 * Fax: (907) 338-3246 * Website: www.garnessengineering.com Municipality of Anchorage Development Services Department Building Safety Division On.Site W~ter & Wastewater Program 4700 South Bragaw St. P.O. Box 196650 Anchorage, AK 99519-6650 www.d.anchorage.ak, us [907) 343-7904 Parcel I.D. ON-SITE SEWER/WELL PERMIT APPLICATION FOR A SINGLE FAMILY DWELLING Property owner(s) CHRIS BORST Day phone 244-0338 Mailing eddress (1) P.O. BOX 111966 * ANCHORAGE. AK Mailing address (2) Legal descflpUon (Lot, Block & Sub'd.) ~pCode ~ SUBDMSION #2: LOT 4. BLOCK 2. Legal description (SecUon, Township & Range) N/A Lot Size THIS APPUCATION IS FOR: Sewer Only Sewer and Well Sewer Upgrade ,a~'es/Sq. FL Number of Bedrooms 4 99511 Well Only Water Storage THIS PROPERTY COHTAINS: Hot Tub ~ Jagpr.~_! Swimming Pool Water Softening Unit Therapy Pool [] i ce~r~ 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 & WASTE'WATER CONSULTANTS, INC. (Signature of p,-ope~- ownar or nulY~dzed egoflt) Permit Fees: Pete Receipt Number. Waiver Fees.' Date of Payment: Receipt Number. ALASKA WATER & WASTEWATER CONSULTANTS, INC. September 5, 2001 Municipality of Anchorage Development Services Department On-Site Water & Wastewater Program 4700 South Bragaw Street P.O. Box 196650, Anchorage, Ak 99519-6650 Ref: Proposed Septic System for Lot 4, Block 2, Sky Hills Subdivision #2 To whom it may concern: The proposed 4 bedroom house will be served by a private septic system and public water. Two test holes were excavated by Mike Anderson, P.E..One of the test holes is located in the proposed driveway area and cannot be used as a reserve drainfield site; therefore, we are proposing to dig a test hole during construction to establish a reserve drainfield site. The primary septic system will be designed around the 30 foot radius of test hole #46. We are proposing that a 1250 gallon septic tank and a dual deep trench type drainfield be installed. Comments regarding the design are summarized as follows: 1. SOILS: See the attached logs which shows the soil classifications, groundwater monitoring, and the percolation test results. 2. TRENCH DESIGN: a. Percolation Rate: 16 & 18 minutes/inch b. Allowable Application Rate: 0.6 gallons/day/ft2 c. NumberofBedrooms: 4 d. Design Flow: 600 gallons per day e. Minimum Absorption Area: 1000 ft2 f. Total Depth: 11 feet (max.) g. Effective Depth: 7 feet h. Width: 2.5 feet i. Reduction Factor: N/A j. Minimum Length: 72 feet total length (2 @ 36 feet long each) k. Effective absorption area -- 1008 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: ak-wwe.com 4. TOPOGRAPHY: As can be seen on the attached design drawing, the average topography of this property is a 5 to 10 percent running from approximately southeast to northwest; in short, there are no slope concerns. The trenches are to be installed parallel to slope contours. I am unaware of any adverse impacts this installation would have on adjacent wells or septic systems. If you have any questions, please contact us at 33%6179. Thank you for your assistance, t~L Sincerely,~~ NOTE: Attached is a site plan drawing, a design drawing, 2 soil logs, and a 7page 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: alomve.com KINCAID ACRES $/0; LOT 4E, \ t t K~C~O ACRm S/~ LOT 4F, I / / / / ~N~D ~R~ LOT 4D, EVENSON COURT LOT I, BLOCK 2, al. PROPOSED SEP'I1C STSTt. M (S~E: DESIGN PAGE: 2 OF 2) i,i ; SKY ~ILLS S/O 12; / / / / LOT 2, BLOC~ 2, SKY HILL~ S/D t~2; , it. ! / LOT 3, BLOCK 2. ........ ~.~.,.o. .. ~S~ WATER & W~TEWATER I t * ~ · * , CHRIS BORST S48-8840 1 OF 2 ~ ~RI~ON: =~ .~L~ sumvs~o. ~= LOT ~..LOCK ~. '~~"_ . ~. :./'~ 3P--~ StTE P~N FOR PROPOSED SEPTIC SYSTEM PROPOSE~ 1250 $~C INb'T,q.l. FOUNDAIION O. ENqOUT OURINO EXCAVATION TEST HOL[ DUO Wr~I~N RADIUS PROPOSED x. LINE IS TO BE FLAGGEB BY A REGISTERED LAND SURVEYOR PRIOR TO CONSTRuc'r,o. ALASILA WATER & WASTEWATER 9/12/01 B.S.O. 1" = 40' 20F2 CONSULTANTS, INC. PREPARED FOR; PHONE NUMBER: CHRIS BORST 348-8840 L[~ DE~CRIPT)ON: SKY HILLS SUBDIVISION i~2; LOT 4, BLOCK 2, TYPE OF WORK: DESIGN DRAWING OF PROPOSED SEPTIC SYSTEM DEPARTMENT OF HEALTH & HUMAN SERVICES 8~5 'L" StreeL Ancrtotage. Alaska 99502-0650 SOILS LOG -- PERCOLATION TEST BLt' ~., Sk.~' W2.11s Subdivi=lon SLOPI[ lg- PERCOLATION q&TE J~" 4m*~,Ms,.'q~ I~..RC HOLE DUu~ETER ~ cavity 'a~s Dreso~ke~ I;~qE~ORMF.~ 8Y; ~ I CERTIFy TKAT THIS TEST WA~ ~ED ~ Hlchael ~ Aa4ereou Mun~pMIty e! A~chor~ee. DEPARTMENT OF HEALTH & HUMAN SERVICES 825 'L' Street. Anchorage. AlaSka 99~02-O650 SOILS LOG -- PERCOLATION TEST C~G~I,.O~SCnIPI*tON: LT~ B[3[~%,$ky H:Llls Subdtvl,"i. on SLOPE SaTE , ~ I ~ I J ' r- - --2'?-o='- - - -.~ ~- ,~. .' .' , I--' ~'/'..~- ~ _ ,....: .. ~, ',,~.. ~L. · .' -¢- ' ~ ?r- s.-...'. ." ' · "%~ II- iL- , WAS GROUND WATER 10- :'..'.! ENCOUNTERED' " '"'"' 51' ....- ', *' DEPTH" '="" ~1. 15- .' ' '.," ."... ~ ~1~ 17- · I NeT T~T RUN BET~ -- ~ , FT AND-- ~ ,, FT vas ~resoe~e~ ,4 IVIVC, Inc., Year 2001 ALASIG WATER & WASTEWATER · CONSULTANTS, INC. Standard Construction Specifications for Single Family Wells & Onsite Wastewater Disposal Systems I. REFERENCE PROPERTY: Lot 4, Block 2, Sky tlills Subdivision #2. The design is for a four (4) bedroom residence II. DEFINITIONS: 1. Pwperty owner or homeowner: The legal property owner or histber appointed representative (not AWWC, Inc.). 2. Engineer: Ahska Water & Wastewater Consultants, Inc. (AWWC, Inc.) :~. 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. IlL RESPONSIBILITIES: · Property Owner Responsibilities: 1. CONTRACTUAL RELATIONSBIP: The property owner shall contract with the contractor to perform the work outlined in these specifications and plans, in accordance with the attached DSD permit. There is no conWactual 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 ON-LY: 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, Deparmaent 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 property 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. UNTLATII:D EASEMENTS: The property owner is responsible for notifying the engineer and the contractor of any unplatled 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 Page 1 of 7 Inc., Year 2001 from any sU'eams, ponds, creeks, swamps, bogs, or any other surface water as defined by the DSD. This disclosure is of particular 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 proh~it or resU'ict the installation of the septic system. Items of concern would include, but are not limited l0 buried piles of consU'uction 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 his/her knowledge, any of the adjacent pmperties are used as a duplex, business, or multifamily dwelling. The new septic tank and leachfield must be at least I00 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 propen3t 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 upgmdient 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 asphalt, 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 comractor. If the properW is being sold, thc property owner shall ensure that the aforementioned items are addressed[I with the buyer, and, if the work is to be completed after the sale of the property, that necessary funds are1 lescrowed to fund the completion of the work. I 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 CIIARGES TO INSPECT THE INSTALLATION: The property owner is respons~le 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 consmction 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. CItANGES 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 conWactor is responsible for locating all buried utilities, easements, property lines, surface water setbacks, well radii, and water service lines which may be encroached upon by the proposed septic system. The conWactor 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. Page 2 of 7 A ff~VC, Inc., Year 2001 The contractor should recognize that thc location of all wells, surface waters, slxuctures, and other items shown on the design drawings are typically derived from as-built surveys, and municipal records. The as-built surveys and municipal records (prepared by professional engineers & land surveyors) have been assumed to be accurate for purposes of this design; however, thc 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 which 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 not be removed/abandoned until after the engineer has established their location relative the new drainfield during the first 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 particularly significant when the elevation of the existing system components is unknown because clean-outs are not present, buried, or non-functional (can't measure down them because o f obsh'uctions). It is recognized that conditions can be discovered that will materially change the design and the conslmction costs. 2. DISCREPANCIES BETWEEN DESIGN DRAWINGS AND SPECIFICATIONS: Conslruction 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 respons~le for notifying the engineer of any discrepancies noted on the design plans or drawings, prior to starting work. 3. CIlECK GROUNDWATER LEVELS IN TEST ItOLE MONITORING TUBES: Prior to beginning cons~'uction, 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 tu the attention of the engineer so that design changes can be made if necessary. 4. MAXIMUM DEPTtl OF DRAINFIELDS: The maximum depth of the drainfield is shown on the design drawings or is noted in the narrative portion ofthe 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 taking a measurement at the deepest part of the excavation between the highest ground elevation encountered (usually on the uphill side of the excavation) and the bottom of the I~ench or bed excavation. The 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 are established by the inspecting engineer. 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 i.~ not limited to, the following: a. Drainrock b. Sand filter material for conventional beds, ~enches, or mound systems. c. Sand filter material and pea gravel for Intermittent Sand Filters (ISF). d. Anchorage Sand and Gravel (AS&G) "block pea" material for Upflow Filters. It is recommended that the conWactor 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 contractor shall ensure that the septic tank, lift station, or holding tank purchased has a burial depth rating suitable for the actual installation. Page 3 of 7 ~4 WWC, Inc., Year 2001 7. SEPTIC TANK AND STEP TANK SIZES: Prior to purchasing a septic tank or lift station the contractor shall verify that it ia adequately sized for the number of bedrooms shown on the pen'nit issued by MOA. The minimum septic tank size is 1000 gallons and the minimum STEP tank size is 1250 gallons. These size tanks will handle residences with up to 3 bedrooms. For each additional bedroom over fie'ce (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 con.actor shall notify the engineer at least 24 hours prior to starting cons~'uction. If deemed necessary, a pre.-const~'uction site visit shall take place. The cona'actor shall coordinate with the engineer any inspections which will be required during weekenda, holidays, or before/after 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 con~xactor 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 bole excavations shall be filled and mounded as part of this project. Unless insla'ucted otherwise by the engineer, the old test bole groundwater monitoring pipes shall be removed. 11. FINAL GRADING FOR DRAINAGE: The conUactor is responsible for Final grading so as to ensure that surface runoff does not adversely effect the septic system constructed, 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 property 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. CtIANGES IN CONSTRDuIION COSTS: The contractor is respons~le for obtaining approval from the property owner for any additional conslxuction costs associated with design modifications or changing field conditions prior to doing the work. 14. WORKING IN RIGIIT-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 l'md it. 16. INNOVATIVE SEPTIC SYSTEMS. START-UP INSPECTIONS: The conlxactor 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 BinCycle 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 thc protective radius of the proposed well prior to drilling it. Page4of7 .4 WWC, Inc., Year 2001 · Engineer Responsibilities: 1. SYSTEM DOCUMENTATION: The engineer is responsible for inspecting the installation of the septic system and preparing ns-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 ~rench/bed excavation * Top of sand on all sand filters * Top of drainpipe * Septic tank, or lift station, or holding tank prior to backfill * Placement offilter fabric and insulation * After final grading is completed 2. LLMITED AUTIIORITY: 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 properly owner or his/her representative. The inspecting engineer does not have the authority to direct the cont~actur 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 CtlANGES WI'Ill TIIE MOA: If design changes are necessary, the engineer will coordinate the approval of the changes with the MOA. The conUactor docs 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 consUuction, 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 construction 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 construction non-compliance does not relieve the contractor of his/her responsibility to correct such a deficiency. · Septic Tang Holding Tank, or Lift Station Installation: 1. The burial rating of the tank shall be adequate for the actual burial depth encountered. 2. The tank shall be level and sufficiently bedded lo prevent set~ling or shifting of the tank. 3. Ail 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 "Conwactor 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 A WWC, 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 soil cover to resist the uplift force. The engineer shall make this determination. I0. The final 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 Elec~ical 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 Cone 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 monitoring air flow 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 ofthe excavation shall be within 2 inches of level (2 inch maximum variation between high and low spots). I f the sidewalls or bottom of the excavation become smeared, they must be raked or scarified before placement of the filter sand or drai~ock. 2. The Ixench 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 proper~y owner, the contractor shall obtain approval from the property owner prior to proceeding with the work. 4. Once the drain~ock is installed, the distribution pipe is to be placed level (0.02 feet difference between high and Iow shots) with the perforations faced downward. Drainrock is then to be placed over the dis~bution 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 draim'ock 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 ofthe monitoring tube extending through the draimock shall be perforated from the bottom of the Uench/bed to the invert of the disa'ibution pipe. 7. Backfill over the final drainrock 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 conlractor shall "shoot" 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 trench/drainfield. See "Contractor Responsibilities'; paragraph 12 regarding finat soil cover. 8. Ifan alternator valve was installed with this design the contractor shall provide a functional valve key to~l thc property owner. SECTION V: DISCLAIMERS Page 6 of 7 ,4 WWC, 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 construction, 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 written estimate if requested. The property owner should discuss with the conS'actor any changes in the installation cost associated with the design changes. · IF TIIE PROPERTY BEING SOLD AND FUNDS ESCROWED FOR Tile 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 poss~le. · SEPTIC SYSTEM PERFORMANCE: The design of this septic system is based upon limited soils testing, groundwater monitoring, and a visual assessment. It is poss~le 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 cuntxol AWWC, Inc., may adversely effect the long term performance of the system. Such factors include, but are 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 drainfields (when this is an option), or/and excessive use of water. Given these variables, it is not possible to warrantee the peffommnce ora septic system. By proceeding forward with this installation, the Engineer, ~.V_ell .Driller, Contractor, and Property Owner agree that they hav.e.r, ead thes.e spec~ficatmns and agree to accept the terms and cond~taons outlined in them. Page 7 of 7