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HomeMy WebLinkAboutFIRE LAKE LT 4 TR POnsite File storage#051 a= 332 a= 29 ."Ef house has water storage, NSF approved tanks at time cl Permit Number: {JSP 101145 Date of Issue 8/9/2090 Parcel Identification Number: Date Started: 8/912010 Date Completed: 8/1212010 Is well located at approved permit location? OXYes E]No Property Description FIRE LAKE TRACT P Lot 4 Block Section Town: Range: Property Owner Name & Address: VAN BRIGGS PO BOX 670425 CHUGIAK, AK 99867 Borehole Data: Depth Method of Drilling 'E] air rotary LF] cable tool Soil Type, Thickness & Water Strata From To easing type: Casing Stickup 0 3 Wall thickness 0.25 inches Gravel & Cobbles 3 g Diameter 6 inches Total: 49 feet Yellow Bedrock Fractured 8 12 Liner type: Diameter inches Depth: feet Green Bedrock Hard 92 79 easing stick-up above ground: 3 feet Yellow Bedrock 71 76 Static Water Level(from top of casing) 4 `feet Green Bedrock 76 92 Pumping Level: feet atter Yellow Bedrock 92 904 —1 --hours pumping gpm Green Bedrock 904 923 Recovery Rate 93 gph Method of Testing- Air Gray Bedrock 123 183 Well Intake Opening Type Dark Gray Bedrock 153 294 -1 Open End I Open Hole Gray Bedrock 294 329t Screened Start feet Stopped feet Green Bedrock 329 400 ; Perforations Start feet Stopped. feet Grout Type: Bentonite dry granular_ Volume: 500 Pounds Depth 44 Start o feet Stopped 44 feet Pump Intake Depth: feet Pump size: HP brand name Well disinfected upon Completion? Lj Yes ,`'D No Method of disinfection CHLORINE 50 PPI Comments: WELL COMPLETED TO CURRENT MOA STANDARDS. WELL YIELD IS 93 GALLONS PER HOUR Water Sample Results: Arsenic: ug/l Well Driller: Nitrates mg/l Cole Sullivan Sullivan Water Wells Total Coliform Bacteria colonies/100mL P.O. Box 670272 Chugiak, Alf 99567 Other bacteria: col/100mL (907) 688-2759 I Attention: The property owner shall provide this log to DSD (onsite) and DNR within 30 days of completion On -Site Water System Permit MUNICIPALITY OF ANCHORAGE Development Services Department On -Site Water & Wastewater Program 4700 Elmore Road, PO Box 196650 Anchorage, AK 99519-6650 Telephone: (907) 343-7904 Permit Number: OSP101145 Tax Code Number: 05133229000 Work Type: Well Renewal Permit Effective Dates: August 09, 2010 to August 09, 2011 Design Engineer: Subdivision: FIRE LAKE Site Legal Address: FIRE LAKE LT 4 TR P G:0554 Owner/Address: BRIGGS VAN PO BOX 670425 CHUGIAK AK 995670425 Site Mailing Address: 18990 FISH HATCHERY RD, Eagle River Lot Size in Sq Ft: 108900 Total Bedrooms: 2 This permit is for the construction of: N Disposal Field N Septic Tank N Holding Tank N Privy Y Private Well N 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 wastewater code requires inspections during the installation. The engineer must notify the Development Services Department at least 2 hours prior to each inspection. Provide notification by calling (907) 343-7904 (24 hours). 4. From October 15 to April 15, a subsurface soil absorption system under construction during freezing weather must either: A. Open and Close on the same day. B. Covered, sealed, and heated to prevent freezing. Special Provisions: If the existing water storage is not removed, the water storage must be added to the permit for review. No charge. Received B Issued By: By Date: CSC �" Date: � ��% Municipality of Anchorage • Development Services Department Building Safety Division On -Site Water and Wastewater Program 4700 Elmore Road P.O. Box 196650 0 Anchorage, Alaska 99507 ° } www.muni.org/onsite (907) 343-7904 ON-SITE SEWER/WELL PERMIT APPLICATION FOR A SINGLE FAMILY DWELLING Parcel I.D. 0-5 J , _-67,12-29. Property owner(s Mailing addres Site address Legal description (Sub'd., Block & Legal description (Township, Range & S Lot Size 2 L -Z- - (' Sq. Ft. THIS APPLICATION IS FOR (® all that apply): Absorption Field ❑ Septic Tank ❑ Holding Tank ❑ Privy ❑ Private Well M_ Water Storage ❑ / phone X5-2 G , Code Code 1Tc c P Lo y Number of Bedrooms 2- Initial Upgrade ❑ Renewal 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. (Signature of property owner fir authorized agent) Permit/Rush Fees: )(�) _� / Z Waiver Fees: Date of Payment: — A /o Date of Payment: Receipt Number: 1 3 q H Li -7 Receipt Number: (Rev. 11/05) PERMIT No. -SWO.70116 PAGE 2 OF 3 Municipality of Anchora e T f DEPARTMENT OF HEA -LITH AND HNIIAN SERVICES ENVIRONMENTAL SERVIC'EIS DIVISION P.O. Box 196650 e, Anchorage, Alaska 99519-6650 @ Telephone: 343-4744 On—Site Wastewater Disposal System and/or Well Inspection Report LEGAL TRACT P, LOT 4, FIRE LAKE S SCALE t" = 50' P.I.D. NO. 051-332-29 0& LO T Q PARKING C: L7 o MTC2 BEDROOM�� DATION FC DOUBLE CLEANOUT STATE OF ALASKA (UNDEVELOPED)  Municipality of Anchorage Development Services Department ~'"':':i~.i'~ Building Safety Division On-Site Water and Waslewaler Program, 4700 S. Bragaw St.~ P.O. Box 196650 Anchorage, AK 99519-6650 Page ~.ci.anchorage.ak.us (907) 343-7904 ON-SITE WASTEWATER DISPOSAL SYSTEM AND/OR WELL INSPECTION REPORT Permit Number: ~0~~ PID Number: ~ ~ '-~'~--~ ~ ~ ~1~ Wastewater System: ~New ~ Upgrade Address: 0~,,,~__~%¢~ ABSORPTION FIELD '~ , ~ Deep Trench ~ Shallow Trench ~ Bed ~ Mound ~ Other: LEGAL DESCRIPTION so,.~,.~: ~o~, ~..,~, ..... ~.,.~, ~ Subdivision: Depth Io pipe bollom from oHginal grade; Gravel deplh benealh pipe " - i 0,4 Township: Range: Seclion: Fifl added above original grade: Gravel Length: ~ B New ~ Upgrade o,.,., widlh: ~ Ft. ~I Drifter: ~ Dale Drilled: SlalicWoler Level: Dale In~lalled: Yield: ~ Pump Sol al: ~~o~ Ground; ~m. ~"1~. ~t TANK SEPARATION DISTANCES ~ Septic ~ Holding ~ S.T.E.P. D Other: Tank Field Slalion Tank Sewer Line ~t~l 7 ~% ~000 w.,, Joe'+ 100% -- -- Zb'~ "~'~'~":Abe& """'~°'°'°°""~b"~"" s,,...ow.,.. Io~ ~ Ioo + ~ -- LIFT STATION --- Gal roundaliorl ~ ~ j ~ ~ "Pump on" level gl: "Pump afC' level ~1: High waler almm in in BENCH MARK Locmllon end Description: Engineer's Slamp, ~hu¢~k, Alaska ~7 2® '~- ~ ~ ,r .... / ....... Development Services Department Approval ~~"~.~ ....... :?,,:.,~.~,.: .~,~ , Reviewed and approved by: ~: ~¢~ Date: ¢ ~"~%Z -: : z i Municipality of Anchorage Building Safety Div. isi0n.' On-Site Water & Wastewater program Field Audit' Report .' ,- Follow-up Notes: ' ' 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 / WATER SUPPLY PERMIT Renewal Date Issued: Jul 03, 2008 Expiration Date: Jul 03, 2009 Permit Number: SW080108 Legal Description: FIRE LAKE LOT 4 TRACT P Design Engineer: 0003 S & S ENGINEERING Owner Name: VAN BRIGGS Owner Address: PO BOX 670425 CHUGIAK, AK 99567- Parcel ID: 051-332-29 Site Address: NHN FISH HATCHERY ROAD Lot Size: 108900 SQ. FT. Total Bedrooms: 3 Permit Bedrooms: 3 This permit is for the construction of: [] Disposal Field [] SepticTank [] 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. 7/?>¢ Received By: Issued By: Date: Date: Municipality of Anchorage Office: (907) ~3-8501 · Fax: (907) 345-8200 http.//xxaxav muni org Mayor Mark Begich Development Services Department Department July 3, 2008 Robert Cowan, P.E. S&S Engineering 17034 Eagle River Loop Road, Suite 204 Eagle River, AK 99577 Subject: Waiver Request for Fire Lake, Tract P Lot 4 Waiver Request WR#: 080042 Parcel ID # 051-332-29 SW080108 Dear Robert Cowan, P.E.: Your request for a waiver of the required 10 feet horizontal separation from the absorption field to the property line has been approved. The approved separation distance is 0.0 feet. This waiver approval applies to the proposed primary and reserve absorption fields to property line separation only. Any future upgrade to the on-site wastewater disposal system will require all separation distances be met or another approval from this department. If there are any further concerns or questions regarding this waiver, please call our office at 343-7904. Sincerely, Deb Wockenfuss // Civil Engineer On-Site Water & Wastewater Program Community, Security, Prosperity Municipality of Anchorage Development Services Department Building Safety Division On-Site Water and Wastewater Program 4700 Bragaw Street P.O. Box 196650 Anchorage, AK 99519-6650 www.ci.anchorage.ak.us (907) 343-7904 Waiver Review Worksheet WR#: 080042 PID#: 051-332-29 HNPermitg Date Received: July 3, 2008 Legal Description: Fire Lake, Tract P Lot 4 Engineer: Robert Cowan, P.E. S&S Engineering 17034 Eagle River Loop Road, Suite 204 Eagle River, AK 99577 Applicant: Van Briggs Waiver Requested: 0' lot line waiver SW080108 Criteria: Geology Points: A. Water Table B. Soil Sorption C. Permeability D. Water Table Gradient E. Horizontal Separation Total: Waiver is Granted: X Waiver is not Granted: List Conditions or Reasons for above: Date: 07103/08 By: Deb Wockenfuss Name of Reviewer Rec#: 1570D Amount: $t75 Date Paid: 7/312008 Municipality of Anchorage ~Oevelopment Services Department Building Safety Division On-Site Water and Wastewater Program 4700 Bragaw Street P.O. Box 196650 Anchorage, AK 99519-6650 www. muni.org/onsite (907) 343-7904 ON-SITE SEPTIC/WELL PERMIT APPLICATION FOR A SINGLE FAMILY DWELLING Od.t --- 5...¢- -gq Site address Parcel I.D. Property owner(s) Day phone 4 Y-- :i. Ood Legal description (Sub'd, Block & Lot) Legal description (Township, Section & Range) Lot Size iOC~ ~ (~OC) Sq. Ft. Number of Bedrooms THIS APPLICATION IS FOR ([~all that apply): Absorption Field [] Septic Tank [] Holding Tank [] Privy [] Private Well [] Water Storage [] THIS APPLICATION IS AN: Initial [] Upgrade [] Renewal [] I ce~ify 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. (Signa~ur; of pr~'~erty ~aw~er or authorized agent) Permit/Rush Fees: / Date of Payment: ~?//~/ Receipt Number: (Rev. 11/05) Waiver Fees: Date of Payment: Receipt Number: ROBERT C. COWAN CIVIL ENGINEERING July 3, 2008 PH: 907-694-2979 FAX: 907-694-1211 HEALTH A~HORITY N~PROVALS SEWER & WATER ~IN EXTENS~O~ SEWER & WATER ~NSPECT)ON £NGi NEERING ST UOIES REPORTS WELL ~NSPECr~ON & ROW TEST SiTE PLANS SO~L TEST P~RCOLATtON TEST STRUCTURAL & MECHN',IIC.,N,. ~N~,PECTIONS ON SITE WAST EW'ATE R ~PO~AL SYSTEM DESIGN MUNICIPALITY OF ANCHORAGE Development Services Department p.O. Box 196650 Anchorage, AK 99519 REFERENCE: Lot 4; Tract P; Fire Lake Subdivision Request you grant a waiver on the referenced property for the h.,0r~Qntal ~paration distance between the proposed alternate leachfield and the eastCtl~roperty ~ne at 0 feet in order to maintain separation distance from the primary trench and the alternate trench. We do not anticipate any adverse effects. If you require additional information, please contact us. Sinc/~~ WAIVER FEES: //~/'~,~- ~ DATE OF PAYMENT: '"~/;~//~)~' RECEIPT NUMBER: I~'~O D 15861 S. Birchwood Loop Road - C_ hugiak, Alaska 99567 MUNICIPALITY OF ANCHORAGE Development Sen/ices 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: Jun 19, 2007 Expiration Date: Jun 18, 2008 Permit Number: SW070116 Legal Description: FIRE LAKE LOT 4 TRACT P Design Engineer: 0003 S & S ENGINEERING Owner Name: VAN BRIGGS Owner Address: PO BOX 670425 CHUGIAK, AK 99567- Parcel ID: 051-332-29 Site Address: NHN FISH HATCHERY ROAD Lot Size: 108900 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. Ail 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. Municipality of Anchorage Development Services Department Building SafebJ Division On-Site Water and Wastewater Program 4700 Bragaw Street P.O. Box 196650 Anchorage, AK 99519-6650 www.munLorg/onsite (907) 343-7904 ON-SITE SEPTIC/WELL PERMIT APPLICATION FOR A SINGLE FAMILY DWELLING Parcel I.D. Property ownerCs). Mailing address Site address Legal description (Sub'd, Block & Lot) Day phone Zip Code Legal description (Township, Section & Range) Lot Size J o<~, ~DO Sq. Ft. Number of Bedrooms ..~ THIS APPLICATION IS FOR ({~all that apply): Absorption Field ~ Septic Tank ~[ Holding Tank ~ Privy Private Well ~[ Water Storage [] THIS APPLICATION IS AN: Initial ~ Upgrade ~ Renewal I certify that the above information is correct. I further cedify that this application is being made for a Single Family Dwelling and is in accordance with applicable Municipal Codes. (Signature of properly owner or authorized agent) PermiVRush Fees: /~Oq J3'/q-5'-'~'/'~ Waiver Fees: Date o, Receipt Number: ~ Receipt Number: (Rev. 11~5) June 15, 2007 ROBERT C. COWAN, P.E.. CIVIL ENGINEERS (907) 694-2979 FAX (907) 694-12 ! t RO~DDEStGN MUNICIPALITY OF ANCHORAGE Development Services Department P.O. Box 196650 Anchorage, AK 99519 REFERENCE: Lot P, Section Lot 4, Fire Lake Subdivision It is requested that you issue a permit to install a new well and a new septic system to serve the proposed three bedroom dwelling on the referenced property. Two test holes were excavated and percolation tests performed. The approximate locations of the test holes are located on the attached site plan. At the time of excavation (5-19-07) water was found at 11 feet. After seven days of monitoring, no ground water was found. We do not anticipate any adverse effects on neighboring wells, septic systems, reserve areas or drainage patterns by the installation of the proposed septic system. The construction of this system will not prevent any future development on any of the adjacent properties. lfyou require additional information, please contact us. Sincerely, Robert 12. Cowan, P.E. Enclosure 1"=60' SCALE DESIGN SITE-PLAN ~ XoF~ ~ " .. ' o : ~ - - ~ _ ~o~ ~- -30~ SCAL DESIGN Z-Do ~J r- i i.~SITE~PLAN 0 0~0 ~m~ 1" = 10' I DESIGN J PROFILE iC) TEST HOLE ! SIT£ Roo~ Hass 2- Poorly Graded , 3- Sond Cobbies 4 ~ SP 5-- 7-- e -- --TH2 e~ : TeST (~ ~TH1 10 -- HOLE 11 -- Seepage e I1' ~AS GROUND WATER SLOPE 14 -- ENCOUNTERED? Y 15 l? Y[~. AT WHAT TEST HOLE ~DH D~PTH? ~ 11' DEPTH TO WAT[~ AFT[~ DAT[z 5/~5/07 D~v $ 11:30 7 MIN 11.8' 5,79 PERCOLATION RATE 1.0 (mln/inch) PERC Hi]L[ DIAHETER 6 inches TEST RUN BETWEEN 5 FT AND 6 FT DATE PERFORMED: 05-19-07 COMMENTS: Test hole excavated by Little Bear Excavating. Test Hole was presoaked before perc test. Test ran for 1 hour- last 3 readings reported. PERFORMED BY: Steven R. Pannone, P.E. I CERTIFY THAT THIS TEST WAS PERFORMED IN ACCORDANCE WITH ALL STATE AND MUNICIPAL OUIDLINES IN EFFECT ON THE DATE OF THIS TEST. _~.~-~.~.~..."~_~ P.O. BOX 102954 ANCHORAGE, AK 99510 05-21-07 f~ PHONE (907) 272-8218 FAX (907) 272-8211 Scome 'f~ _~E pj4~_ /~ Van Briggs 'I,~A- 27-~ TEST OR Oroonics i 1-- Root Hoss 2-- Poorly 3-- SP/ S~nds p 4-- GP Cobbles 7-- 8-- --TH2 9-- 10 -- HOL£ 11 -- ~OU WAS GROUND WATER SLOPE 14-- ENCOUNTERED? Y TEST HOLE 15 -- Ir YES. AT WHAT DEPTH? SeeDs e 14' 16 -- DEPTH TO WATER AFTER 17-- NON[TORINO? DATE, 5/25/07 Domo @ 15.5' 18 -- WATER TIMe R£AD[NG 2 11:38 7 MIN 11.65' 6.10 5 11:45 5.55' 5 11:45 5.55' PERCOLATION RATE I.O (rain/inch) PERC HOLE DIAMETER 6 inches TEST RUN BETWEEN 6 FT AND 7 FT DATE PERFORMED: 05-19-07 COMMENTS: Test hole excavated by Little Bear Excavating. Test Hole was presoaked before perc test. Test ran for 1 hour- last 3 readings reported. PERFORMED BY: Steven R. Pannone, P.E. I CERTIFY THAT THIS TEST WAS PERFORMED IN ACCORDANCE WITH ALL STATE AND MUNICIPAL GUIDLINES IN EFFECT ON THE DATE OF THIS TEST. ~'.b.%.~.. .... ';.'?,S'.;..q~ P.O. BOX 102954 ANCHORAGE, AK 99510 05-21-07 PHOHE (907) 27 -82 8 tAX (90?) 272-8211 . ,'-,0' ~":_~*'~ ~, Section Lot 4 Fire Loke SD )41-Oll-0( ~£RUIT NO. ?~'.. CE 8149 .~ Van Driggs '{ ~ ,~/:~,5,- 2 7 - ,qT~,~ TEST ,~;rt~q~o.~,.~,.r~%x,~ Sheet · ' "~' ~:*~:C~'" HOLE 15 June 2007 Reference: Lot P; Section Lot 4; Fire Lake Subdivision Subject: Owner lastallation of Private Septic System To Whom It May Concern: I am the owner of the referenced lot and am installing the septic system on the lot. I am familiar and experienced with the operation of the required equipment, as well as the installation ofthe septic systems. I will, install the system in accordance with the design done by S&S Engineering; and have S&S Engineering do all the required inspections and documentation. Thank You, ROBERT C. COWAN, P.E. CML ENGINEERS (907) 694-2979 FAX (907) 694-I 2 ~11 ON-SITE WASTEWATER DISPOSAL SYSTEM CONSTRUCTION PRACTICES and MATERIAL SPECIFICATIONS REFERENCE: Lot P, Section Lot 4, Fire Lake Subdivision June 15, 2007 GENERAL: The scope of this project includes the installation of a new 1000 gallon HDPE septic tank and a septic trench to serve the proposed three bedroom residence located on the referenced property. Construction shall be in accordance with the approved site plan and design drawings, Municipal permit with any special provisions or conditions, and all applicable State and Municipal Wastewater Disposal Regulations. The contractor shall be responsible for obtaining any necessary underground utility locates. Unless specifically agreed otherwise, the property owner shall be responsible for final grading areas subsequently depressed from soil settling. Contractors installing wastcwater disposal systems must be certified by the Municipal Development Services Department or ADEC if required, for system installations. Owners installing their own systems must also receive prior approval from the respective agency. SEPTIC TANK INSTALLATION: A septic tanlc is to be constructed by a certified septic tank manufacturer. Conslxuction shall include two 4" cleanouts for pumping access. All HDPE septic tanks are required to have a 4" monitoring pipe installed next to the tank extending to the bottom ofthe tank. Page 2 Lot P,$actlon Lot4, Flre Lake Subdivision June15,2007 The septic tank shall be sufficiently bedded to prevent settling or shifiing of the tank. All standpipes on the septic tank shall extend a minimum of 12 inches above final grade. Septic tanks installed with less than 4 fi. of cover shall be insulated. All HDPE septic tanks are required to be covered with a minimum 6f2" direct burial insulation. A foundation cleanout shall be installed one to four feet from the building foundation. In the line between the tank and the leachfield there shall be two adjacent cleanouts (unless an effluent pumping system exists within the septic tank). These cleanouts shall be located on undisturbed soil not more than 10 ft. from the tank. The first cleanout, in line, shall be to clean toward the leachfield. The second cleanout shall be to clean toward the septic tank. Final grading over the septic tank shall be such that a positive slope exists away from the septic tank. ABSORPTION TRENCH/DRAINFIELD INSTALLATION: Excavate the proposed trench to the dimensions shown on the design. The bottom of the excavation shall be within 2 inches of level. If the sidewalls of the excavation become smeared, they must be raked or scratched (rafted-up) before gravel (sewer rock) placement. Once the gravel is installed, the distribution pipe is to be installed level with the perforations faced downward. Gravel is then to be placed over the distribution pipe to provide a minimum of 2 inches of cover over the pipe. A silt barrier must be installed between the final gravel layer and the native soil backfill. Ensure the silt barrier covers the entire gravel surface before placing backfill. Monitor tubes shall be of four (4) inch diameter, installed approximately in the locations shown on the design, and extend a minimum of 12 inches above final grade. The portion of the monitoring tube extending through the gravel shall be perforated from the bottom of the trench to the invert of the distribution pipe. This is equivalent to the effective depth of the gravel as noted on the design. Backfill over the final gravel layer must not be less than twenty-four (24) inches. Insulation must be installed when the backfill depth is less than thirty-six (36) inches. The finish grade over the trench must be mounded to prevent the formation of a depression after settling. Page 3 Lot P, Section Lot 4, Fire Lake Subdivision June 15, 2007 MINIMUM MATERIAL SPECIFICATIONS: 1. Any septic tank proposed for installation must be constructed by a Municipal approved septic tank manufacturer. 2. The following pipe materials are approved for use in septic system installations in the Municipality of Anchorage: Type of Pipe Perforated Solid Cast Iron Yes Yes · ASTM D3034 (PVC) Yes Yes ASTM FSI0 (HDPE) Yes No ASTM D2662 (ABS) Yes Yes Use of a type of pipe other than listed above must be approved by the inspecting engineer. Insulation shall be at least 2" thick extruded direct burial polystyrene (Dow Chemical Company Styrofoam HI or equal). Septic tank inlets and outlets shall be fitted with watertight couplings (Caulder, Femco, or equal). A permeable nontoxic silt barrier (Typar 3401, Mirafi 140N, or equal) must be installed between the final leachfield gravel layer and the native soil backfill. All leachfield gravel (sewer rock) shall be 0.5"-2.5" screened gravel with less than 3% passing the//200 sieve. When sand is being used as a filter material, its gradation specifications must conform to current M.O.A. or D.E.C. requirements, which ever requirement applies. Page 4 Lot P, Section Lot 4, Fire Lake Subdivision June 15, 2007 INSPECTIONS: Typically there will be a minimum of threc (3) inspections required during the installation of the wastewater disposal system. These inspections will occur as follows: The first inspection must be conducted after the excavation of ditches, pits, trenches, or beds and before the installation of any gravel. A septic tank may be set in place, but may not be backfilled before this inspection. The second inspection must be conducted after the placement of the silt barrier, gravel, distribution lines, standpipes, cleanouts, and insulation, but before the placement of any other backfill. The final inspection is to occur upon final grading of the property. Often there will be more than these 3 inspections required. Especially with the installation of multiple trenches, sand filters, pressurized distribution systems, etc. Thus, the inspecting engineer is to be contacted at least 24 hours prior to the start of construction. If necessary, a pre- construction meeting will take place on-site. The inspecting engineer will not coordinate, direct or control in any way the contractors activities. The owner shall contract with the contractor to perform the work outlined in these specifications and plans and in accordance with the attached M.O.A. permit. There will be no contractual arrangement existing between the contractor and S & S Engineering. S & S Engineering shall be the owner's representative and will inspect the work as stated above to document the contractors activities. Final acceptance of the contractors work rests with the owner and the M.O.A. S & S Engineering shall have no liability to the owner or to others for acts or omissions of the contractor or any other persons performing work on this project or the failure of the contractor to carry out the work in accordance with these construction documents. S & S Engineefing's inspecting engineer will not be responsible for the construction means, methods, techniques, sequence, procedures or the safety precautions incident to this project. CONTRACTOR / INSTALLER