Loading...
HomeMy WebLinkAboutSKYHILLS PH 1 BLK 1 LT 11 Municipality of Anchorage Page 1 of 3 DEPARTMENT OF HEALTH AND HUMAN SERVICES ENVIRONMENTAL SERVICES DIVISION P.O. Box 196650 · Anchorage, Alaska 99519-6650 · Telephone: 343-4744 On-Site Wastewater Disposal System and/or Well Inspection Report Permit Number: SW980435 Pie Number: 011-~2! 05- ~,~¢~,-~. Nares: Wastewater System: ~ New f'-] Upgrade The Petersen Group Address: 3820 Lake et±s, Su±te 204 ABSORPTION FIELD Phone: 5 62-1170 t NO. of Bedrooms: i~ Deep Trench [] Shallow Trench [] Bed [] Mound [] Other I Four LEGAL DESCRiPTiON ¢,v,¢\~4: soil Rating:. 6 GPO/Se. FtTotal Depth from original grade:l 3. 5 ' Lot: Block: Subdivision: Depth to pips bottom Item original grade: G ravel depth beneath pipe 11 1 Sky Hills 5,5 Ft. 8 Ft. Township: Range: Section: Fill added above original grade: Gravel length: · 5 Ft. 6 ~ · 9 Vt. WELL: [] New [] Upgrade Gravel width: Number of lines: 0istancebe~een lines: 3 Ft. 1 - Classilicallon (Private. A,B.C): Total Depth: Cased To: Total absorption area: Pipe material: City Water SYstem F~. Ft. 1 ,097.6 SO. Ft. ASTH D3034 PV¢. _ [Driller: Date Drilled: Stalic Water Level: Installer: Oate installed: Ft. Kip~aid ~nd ~nn 12/23/98 Yield:Pump Setat:Casing Heig~, A~ove Grou,~: TAN K GPM F. Ft. SEPARATION DISTANCES t~Septic [] Holding [] S.T.E.P. TO SeOIiC : Absorption LIlt Holding Public/PrivateManufacturer: Capacity in gallons: From Tank Field Stat,on Tank SewerLine$ Anchoraqe T~nk 1, 25o Material: Number of Compartments: Well > 200 > 200 ' N/A N/A N/A Steel TW~ Su,aoe >100 >100' N/A N/A N/A LIFT STATION - N/A Water Lot > 5 ' > 10 ' N/A N/A N/A Size in gallons: Manulacturer: Line Foundation >5 ~ > 10 ' N/A N/A N/A "Pump on" level at: "Pump off" level at: I High water alarm at: Curtain Pump Make & Modsl Electrical inspections performed by: Drain None on Lot' Remarks: BENCH MARK Location and Description: Door Sill Lower Level North Side Assumed Elevation: 199,0 Ft E N GI.N E !$.]~'.'S, ,S, EAL Inspections performed by: A. Harala 0ates: 1st 12/23/98 .... 2nd ~ 2/23/98 ¢}.~of~C. tl~J~LE./%g~,0' Department of Health and Human Services approval /¢~ Reviewed and approved by: .~J~//¢/,///Y~? Bate:'5~''2'¢~'' ¢/? 72-013iRe¥ 9/91) MOA 25 ,0~ = ,,L .l'llns-s¥ NY-Id §'OOl l'90l 6';~6 6'£~ ~'Z£ ~'9£ 9'£;~ lX £D IS ~Orq © 90-LZL-I-LO 'ON (:lid ~gt~O96/~AS .mqtunN ~,!W~d Municipality of Anchorage Page 3 of 3 DEPARTMENT OF HEALTH AND HUMAN SERVICES ENVIRONMENTAL SERVICES DIVISION P.O. Box 196650 Anchorage, AK 99519-6650 343-4744 On-Site Wastewater Disposal System or Well Inspection Report Permit Number SW980435 PID No. 011-121-06 5 99.5' 95.3' /1,250 Gal Sep. Tank 24.5' 97.5' Geotextile Fabric Drainfield Rock 91 .95'~ 68.9' PROFILE AS-BU HORIZONTAL SCALE 1" = 10' NO VERTICAL SCALE MUNICIPALITY OF ANCHORAGE DEPARTMENT OF HEALTH AND HUMAN SERVICES PO BOX 196650 ANCHORAGE, ALASKA 99519 343-4744 HAND WRITTEN PERMIT Permit Number: SW~O~55 Permit Type: Date Issued:~~ ~,~9~7S Expiration Date: ~W. Design Engineer: ~~ Owner Name: ~ ~~ ~1c~? Day Phone: Owner Address: ~ ~ Ot{5~~ Lot Legal: Subdivision:~o~~c~ Lot: %~ Block: Section: Township: Range: Lot Size:qo~q5 (sq.ft. or acres) Max Bedrooms: This Permik: ~ Total Capacity.: ~ SEPTIC TANK: Minimum septic tank capacity:l%~O gallons. Each septic tank must have st least 2 compartments, insulation is required if depth to top of septic tank(s) is less than 4.0' Lift stations require an appropriate electrical inspection. WELL LOG: A copy of the well log must be sent %o DHHS within 30 days of the well's completion. I CERTIFY THAT: 1. I will install the on-site sewer system and/or well in accordance with all codes and regulations of the Municipality of Anchorage (MOA) and State of Alaska , and in compliance with the design criteria of this permit. 2. I will adhere to all MOA and State of Alaska requirements for separation distances from any existing well, septic system~ or surface water on this or any adjacent or nearby lot. 3. I understand that this permit is valid for a single family dwelling with a maximum of bedrooms. I also understand that any enlargement will require an additional permit. 4. I understand this permit is issued for 365 days and expires one year from the date of issue. 5. I will notify DHHS prior to all inspections by the engineer or well driller. (owner/designee) ISSUED BY: DATE: DATE: db/ll5 October 29, 1998 Municipality of Anchorage Department of Heath & Human Services 825 "L" Street Anchorage, AK 99502-0650 Subject: Lot 11, Block 1, Sky Hills Subdivision Septic System Design Impacts to Adjacent Properties Dear Onsite Services Engineer: The owner of Lot 11, Block 1, Sky Hills Subdivision intends to construct a four bedroom home on the lot. We are therefore requesting a permit to construct aseptic system on the lot to serve the house. The subdivision is served by the Municipal water system so a well permit is unnecessary. The attached site plan and backup documentation describe the proposed system and show the location of the new system. The testholes placed on the property revealed sands ranging from well to poorly graded. Some silt pockets were found in the sand. Percolation rates ranged from 6 to 20 minutes per inch. The system is designed for the slower rate. Groundwater was not encountered during the excavation nor was any noted during the monitoring period. We have therefore designed a 3' wide deep absorption trench with 8' of gravel beneath the distribution piping. The trench will be 63' long with a total depth from original grade of 13'. The ground surface of the lot slopes to the northeast at rates between 2% and 10%. The absorption trench will be placed across the slope near the northeast corner of the lot to provide sufficient fall from the house for gravity flow. No other lots surrounding this lot are currently being developed. No conflicts currently exist with other systems in the area. Lot 11, Block 1, Sky Hills October 29, 1998 Page Two If the system is constructed as designed the following statements apply: The system, if constructed as designed, will have no adverse impact on the wells in the area or those to be constructed in the future. The subdivision is served by the Municipal water system. The system, if constructed as designed, will have no adverse impact on existing septic systems in the area or those to be constructed in the future. The system, if constructed as designed, will have no adverse impact on reserved space, either surface or subsurface, on any lots located in the area. The system, if constructed as designed, will have no adverse impact on drainage patterns in the area. The current drainage pattern will be maintained. Sincerely, Michael E. Anderson, P.E. Attachments SkyHills Subdivision THIS PROJECT' ~1-103 11 lO Vacant 9 Vacant Vacan~ 8 Vacant 7 UNSUBOME~D (D ", \ / f/ I i TH-91 , 1H-10~ 1H-?0 8 TH-a7 ~ 4 fH-§3 2 TH~7§ .' I I ~ I 4r I I I I I L ........... L IH~Z 1 3 '~1-44 1~-94 "iTl- g0 1,3 1H-10 10 14 AREA SCALE 1" = 200' Q ~0 LOT 11, BLOCK 1, SKYHILLS DESIGN FACTORS: Four Bedroom Home Perc. Rate: 20 MinJInch Application Rate: .6 GPD/SF SYSTEM REQUIREMENTS: Deep Trench System 1,250 Gallon Septic Tank 8' Drainfield Rock 4 Bedrooms X 150 GPD / .6 GPD/SF = 1,000 SF of Absorption Area 1,000 SF/16 SF/ LF of Trench = 62.5 LF Trench Length Therefore: Construct a Deep Absorption Trench System With One Laterals 63' in Length with 8' of Drainfield Rock Beneath the Lateral. Distribution Pipe in Trench Placed at 5' Below the Original Ground Surface. Natural 5' Backfill Geotextile 6" Fabric NOTE: 4" Perforated PVC (Slots Down) ield Rock TYPICAL DEEP TRENCH SECTION (NO SCALE) Grade Area Over Trench to Drain Away. Minimum 3' of Cover over Septic System, Maintain 10' Separation From Lot Line, PERFORMED FOP,: L--GAL DESCRIPTION: 1 2 3 4 ? 9 10 14 15 17 18 COMMENTS Nlunicipality of Anchorag~ DEPARTMENT OF H-.E~LTH & HUIvtAN SERVICF_$ 825 'L" Street, Anchorage. Alaska SOILS LOG -- PERCOLA~ON 'CE-ST L H Construction Lot 11, Block 1, OL SM SW Sky Hills Subdivision SIT.= PLAN Ill I I I TH #103 Perc. Cavity WA~GROUND W&3'E~ ENCOUNTERED? IF Y~_.., AT WHAT DEFTH? Raading ~e /Z ~ I0 N~ I I I PERCOLATION RAT:. ~ ~) --- ImmL.'t~inc:tl) P-~'~C HOLE DIAM~T~-,R __ _ FT AND FT presoaked prior to testing. i ?.ichael E. Anderson .'~ t IN PERFORMED FOR: Municipality of Anchorage. DEPARTMENT OF HEALTH & HUMAN SERVICES 825 "L" Street, Anchorage, Alaska 99502-0650 SOILS LOG -- PERCOLATION TEST L H Construction LEGAL DESCRIPTION: LT~IIBLK I1 Sk~ Hills Subdivision DAtE PERFORM~~~ SLOPE SiTE PLAN 7 8 9 10 11 12 13 14 15 COMMENTS Perc cavity was WAS GROUND WATER ENCOUNTERED? S IF YES. AT WHAT ,.-~ / ~) DEPTH? .- p Oepth to Water Altero M0niloring? 'w"~' Dale: ~ "~'1'~ Reading Date Gross Net Depth to Net Time Time Water Drop PERCOLATION RATE (minutes/tach) PERC HOLE DIAMETER .. TEST RUN BETWEEN ~ ~ FT AND ,"' ~ FT presoaked · ' E Anderson ACCOROANCE WITH ALL STATE AND MUNICIPAL GUIDELINES IN EFFECT ON TH S DATE OATE ON-SITE WASTEWATER DISPOSAL SYSTEM CONSTRUCTION AND MATERIAL SPECIFICATIONS SUBJECT: LOT 11, BLOCK 1, SKY HILLS SUBDIVISION GENERAL: 1. The scope of this project includes the procurement and placement of a 1,250 gallon septic tank. It also includes the construction of a new 63' long X 3' wide X 8' effective depth absorption trench at the location shown on the site plan. 2. Construction shall be in accordance with the approved site plan, design drawings, Municipal Permit with any special provisions or conditions, and all applicable State and Municipal Wastewater Disposal Regulations. 3. The Contractor shall be responsible for obtaining all underground utility locates and for the layout of the septic system and verification of the location of all lot lines. 4. Unless specifically agreed otherwise, the contractor shall be responsible for final grading areas subsequently depressed from soil settling. Property owner shall be responsible for revegetation of affected areas unless specifically agreed otherwise. 5. Contractors installing wastewater disposal systems must be certified by the Municipal Department of Health and Human Services for system installations. Owners installing their own systems must receive prior approval from D.H.H.S. before beginning system installation. SEPTIC TANK INSTALLATION A new 1,250 gallon septic tank must be procured from an approved source and installed at the location shown on the Site Plan. Lot 11, Block 1, Sky Hills October 29, 1998 Page Two 2. A septic tank is to be constructed by a certified septic tank manufacturer. Construction shall include two 4" cleanouts for pumping access. 3. The septic tank shall be sufficiently bedded to prevent settling or shifting of the tank. 4. All standpipes on the septic tank shall extend a minimum of 12 inches above final grade. 5. Tanks installed without 4' of cover shall have a minimum of 2" of direct burial insulation. 6. A foundation cleanout shall be installed one to four feet from the building foundation. Two cleanouts are required between the tank and the drainfield. 7. Final grading over the tank shall be such that a positive slope exists away from the septic tank. DRAINFIELD CONSTRUCTION: 1. The drainfield shall be constructed to the dimensions shown on the design. The bottom of the trench shall be within 2" of level. 2. Distribution piping must be placed level with perforations down atop alevel bed of drainfield rock. Rock should then be placed over the pipe to provide a minimum of 2" of cover. 3. A silt barrier or geotextile fabric must be placed between the drainfield rock and the natural soil backfill. 4. Monitor tubes must be 4" in diameter and installed at the locations shown on the design. The portion below ground must be perforated. Lot 11, Block 1, Sky Hills October 29, 1998 Page Three 5. Contractor shall verify the septic tank and drainfield are a minimum 100' away from any private water wells in the area, 150' from a Class "C" Well or 200' from any community well. 6. Direct bury insulation must be placed over the distribution system if less than 3' of backfill depth is available. Finish grade over the trench must be mounded to prevent settlement or depressions. 7. Grade area surrounding the absorption trenches to drain away. 8. A minimum 2' of accepting soil is required below the drainfield rock for a 5' wide trench. Contractor shall verify this condition prior to placement of the rock. All pockets of unacceptable materials must be removed and replaced. MATERIAL SPECIFICATIONS: 1. Septic tanks must be constructed by a Municipally approved septic tank manufacturer. 2. The following pipe materials are approved for use in septic system installations in the Municipality of Anchorage: Cast Iron (perforated and solid), ASTM D3034 or P.V.C. (perforated and solid), ASTM F810 or H.D.P.E. (perforated, but not solid) and ASTM D2662 or A.B.S. (perforated and solid). 3. Insulation shall be at least 2" thick extruded direct burial polystyrene (Dow Chemical Co. Styrofoam HI or equal). 4. Septic tank inlets and outlets shall be fitted watertight couplings (Caulder, Fernco, or equal). with Lot 11, Block 1, Sky Hills October 29, 1998 Page Four 5. A permeable geotextile fabric (Typar, Mirafi or equal) must be installed between the final drain rock layer and the native soil layer. 6. All drain rock shall be .5" to 2.5" in diameter with less than 3% passing the #200 sieve. INSPECTIONS: A minimum of two inspections are required by Municipal Ordinance. These inspections must be conducted under the supervision of a professional engineer registered in the State of Alaska. The first inspection must be conducted after the excavation of trenches, beds or pits and before the installation of any gravel. A septic tank may be set in place, but may not be backfilled. The second inspection must be conducted after the placement of the geotextile fabric, gravel, distribution piping, standpipes, cleanouts and insulation. No backfill should be in place at the time of inspection. Contractor shall provide a copy of all field survey layout and construction notes for use in preparing the certified as-built of the completed system. MUNICIPALITY OF ANCHORAGE DEPARTMENT OF HEALTH & HUMAN SERVICES Division of Environmental Services On-Site Services Section P.O. Box 196650 Anchorage, Alaska 99519-6650 343-4744 CERTIFICATE OF HEALTH AUTHORITY APPROVAL FOR A SINGLE FAMILY DWELLING Parcel I.D. # 0 1 1 --1-2-1---O6 / ~,'~- 1. GENERAL INFORMATION Complete legal description BI or.k_ 1: Sky H~_lls \' ~,%--, '~- Location (site address or directions) Property owner_ The Pete~7..~en Group Mailing address 3g:~n T,a~'e Q.~iR Lending agency Mailing address Day phone 562-1170 29_4 Anchorage, AK 99508 Day phone Agent Ad dress Day phone ., Unless otherwise requested, HAA will be held for pickup. NUMBER OF BEDROOMS: Four (4) TYPE OF WATER SUPPLY: Individual well Community well Public water NOTE: ..XXX If community well system, provide written confirmation from State ADEC attest- ing to the legality and status of system. TYPE OF WASTEWATER DISPOSAL: Individual on-site Holding tank Community on-site Public sewer NOTE: If community wastewater system, provide written confirmation from State ADEC attesting to the legality and status of system. XXX 72-025 (Rev, 1/91) Front MOA #21 5. STATENIENT OF INSPECTION BY ENGINEER. As certified by my seal affixed hereto and as of the validation date shown below, t verify that my investigation of this Health Authority Approval application shows that the on-site water supply and/or wastewater disposal system is 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 in compliance with all Municipal and State codes, ordinances, and regulations in effect on the date of this inspection. Name of Firm Anderson Enqineerin_q __ Phone_522-7773 Address PLO, Box 240773 Anchorage~ AK 99524 Engineer's signature ~¢-~'t, (~J~'U~.¢~ Date 5/24/99 6. DHHS SIGNATURE --Z-'"" Approved for /c- 0 CJ/~ bedrooms. Disapproved. Conditional approval for bedrooms, with the following stipulations: Additional Comments The Municipality of Anchorage Department of Health and Human Services (DHHS) iSSues Health Authority Approval Certificates based only upon the representations given in paragraph 5 above by an independent professional engineer registered in the State of Alaska. Th~ DHHS does this as a courtesy to purchasers of homes and their lending institutions in order to satisfy certain federal and state requirements. Employees of DHHS do not conduct inspections or analyze data before a certificate is issued. The Municipality of Anchorage is not responsible for errors or omissions in the professional engineer's work. 72-025 (Re¥.1/91) Back MOA#21 Municipality of Anchorage 13 r ~' r- DEPARTMENT OF HEALTH & HUMAN SERVICL:t~ E L. ,E ! V ~ D Environmental Services Division 825 L Street, Room 502. Anchorage, Alaska 99501° (907) ~.~3Y-4~7~41999 · Municff)ahty u'l Anchorage Health Authority Approval Checklisr~ept. Health & Human Services LegaIDescription: not 11; Block 1.. Sky H~'II.~ Parcell.D.: 011-121-06 A. WELLDATA- Municipal Water System Well type Log present (Y/N) Total depth Sanitary seal (Y/N) If A, B, or C, attach ADEC letter. ADEC water system number Date completed Cased to FROM WELL LOG Date of test Static water level Well production WATER SAMPLE RESULTS: Coliform Date of sample: B. SEPTIC/HOLDING TANK DATA Casing height (above ground) Wires properly protected (Y/N) AT INSPECTION g.p.m, Nitrate Collected by: Other bacteria g.p.m. Date installed 1 2 / 2 3 / (~ R Tank size 1 , 2 5 0 Number of Compartments. 2 Cleanouts (Y/N) ~.._.%___ Foundation cleanout (Y/N) Date of Pumping New C. ABSORPTION FIELD DATA Date installed 1 2 / 2 3 / 9 8 Length 6 8,9 ' Width Effective absorption area 1 ~ 0 9 7.6 Date of adequacy test New Const, Fluid depth in absorption field before test (in.); Fluid depth. (ins) Minutes later: Peroxide treatment (past 12 months) (Y/N) 72-026 (Rev. 3/96)* Y Depression (Y/N) N Pumper Construction Soil rating (g.p.d./fF or fF/bdrm) i , 6 Gravel thickness below pipe Monitoring Tube present (Y/N) ¥ Results (Pass/Fail) 2as s Immediately after High water alarm (Y/N) N Depression over field (Y/N) _ For Four gal. water added (in.): Absorption rate = .g.p.d. If yes, give date. System type ~P.~.~z;~z[ch Total depth... I '~ _ ~; ' bedrooms LIFT STATION - None Date installed Manhole/Access (Y/N) High water alarm level at* Size in gallons on Lot "Pump on" level at* *Datum "Pump off" level at* Cycles tested SEPARATION DISTANCES SEPARATION DISTANCES FROM WELL ON LOT TO: Septic/holding tank on lot Absorption field on lot Public sewer main Sewer/septic service line >200' Municipal Water On adjacent lots On adjacent lots Public sewer manhole/cleanout Lift station System SEPARATION DISTANCES FROM SEPTIC/HOLDING TANK ON LOTTO: Foundation > 5 ' Property line > $ ' Absorption field > 5 ' Water main/service line > 2 5 ' Surface water/drainage > 1 0 0 ' Wells on adjacent lots SEPARATION DISTANCE FROM ABSORPTION FIELD ON LOT TO: Property line > 1 0 ' Surface water > 1 0 0 ' Curtain drain None on Lot F. ENGINEER'S CERTIFICATION Building foundation > 1 0 ' Water main/service line > g ,5 ' Driveway, parking/vehicle storage area > 2 5 ' Wells on adjacent lots > 2 0 0 ' I certify that I have determined thru field inspections and in conformance with MOA HAA guidelines in effect on this date. Signature ~ ~ Engineer's Name Mi .m. ha~] M _ And~r.~nn: P _ E. Date 5/24/99 HAA Fee $ ~'~'~, Date of Payment Receipt Number 72-026 (Rev. 3/96)* Waiver Fee $ Date of Payment Receipt Number