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HomeMy WebLinkAboutSOUTHPARK #2 BLK 2 LT 17 Municipality of Anchorage Page 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: ~'~ ~ ~'~ ~2 ./ ~'/ PID Number: Name~/~ ~ ~~ Wastewater System: ~ew ~ Upgrade Add~/ ~~/~ ~9e¢,. ABSORPTION FIELD LEGAL D ESCRI PTION Soil Rating: ~,~/s~. ~. Township: IRange: ISection: Filladdedaboveoriginalgrad~ Ft, Gravellength; ~/Ft. Number of lines: D~stance bet ee~ lines: WELL: ~ New ~ Upgrade Grave, width: ~/ SEPARATION DISTANCES ~Septic n Holding U S.T.E.P. ToI Septic Absorption Lift Holding Public/Priwte Manufacturer; Cspacity~ From Tank Field Station Tank Sewer Lines ~ ~~ ~ s.,fac~ LIFT STATION W~ter ~¢'~ I~ ~ ~ Lot Size in gallons: I Manulacturer:~ Remarks: BENCH MARK Location and Description: Assumed Elevation: /~ ~, ENGINEER'S SEAL Department of Heal~ and Human Services approval / Reviewed and approved by: Date: ~ 72-013 {Rev. 9/91 ) MOA 25 Permit No. SW950181 Page 2 of 2 Municipality of Anchorage 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 Legal Description~OUTHPARK ADDITION #2, BLOCK 2, LOT 17 02005291 PID No ' col c02 98.3' FINAL NEW ~ 1250 GAL S.T. 1' GRADE MT CO4 TRENCH 5/14/93 WATER FOUND 77.5' · C02 FCO NEW 1250 GAL SEPTIC TANK 4 BDRM HOUSE FOUNDATION DRIVE SCALE l" = 40' 72-013 A (Rev. 9/91 ) MOA 25 C01 12.4 53.5 C02 21.5 55.3 C03 36.5 67.0 C04 64.5 20.5 [ MT~ 38.0 51.5 ENGINEER'S SEAL PAGE MUNICIPALITY OF ANCHORAGE DEPARTMENT OF HEALTH AND HUMAN SERVICES P.O. BOX 196650, 825 "L" STREET, ROOM 502 ANCHORAGE, ALASKA 99519-6650 ON-SITE WASTEWATER DISPOSAL SYSTEM PERMIT PERMIT NUMBER:SW930181 DESIGN ENGINEER:S & S ENGINEERING OWNER NAME:GALAGHER, MIKEJ OWNER ADDRESS:25 1 COMMERCIAL DRIVE ANCHORAGE, AK 99501 DATE ISSUED: 6/24/93 EXPIRATION DATE: PARCEL ID:02005291 LEGAL DESCRIPTION: SOUTHPARK ADDN 2 BLK ~ 2 LT 1 7 LOT SIZE: 22045 (SQ. FT.) NUMBER OF BEDROOMS: 4 THIS PERMIT: 4 THIS PERMIT IS FOR THE CONTRUCTION OF: DISPOSAL FIELD /SEPTIC TANK SYSTEM 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 DHHS AT LEAST 2 HOURS PRIOR TO EACH INSPECTION. PROVIDE NOTIFICATION BY CALLING 343-4329 OR 343-4681 AFTER BUSINESS HOURS 4. FROM OCTOBER 15 TO APRIL 15 A SUBSURFACE SOIL ABSORPTION SYSTEM UNDER CONSTRUCTION DURING FREEZING WEATHER MUST BE EITHER: A. OPENED AND CLOSED ON THE SAME DAY B. COVERED, SEALED AND HEATED TO PREVENT FREEZING 5. THE FOLLOWING SPECIAL PROVISIONS. 1 OF 6/24/94 SPECIAL PROVISIONS: RECEIVED BY: ~' ~j ISSUED BY~~~ DATE: DATE: ROBERT SHAFER, P.E. ROGER SHAFER, P.E. June 11, 1993 CIVIL ENGINEERS (907) 694-2979 FAX 694-1211 HEALTHAUTHORITY APPROVALS SEWER&WATER MAiN EXTENSIONS SEWER &WATER INSPECTION ENGINEERING STUDIES AND REPORTS WELL INSPECTION & FLOW TEST SITE PLANS ROAD DESIGN SOIL TEST PERCOLATION TEST STRUCTURAL & MECHANICAL INSPECTIONS 4unicipality of Anchorage )EPARTMENT OF HEALTH AND HUMAN SERVICES 325 L Street ~nchorage, AK 99519-6650 ~EFERENCE: South Park Subdivision Addn. ~2, Block 2, Lot 17 ~e request you issue a permit to install an original septic ~ystem and an option to install the alternate septic system :o serve the proposed four bedroom house on the referenced )roperty. ~wo test holes were performed on the property. The ~pproximate location of the test holes are located on the ~ttached site plan. The monitoring tubes within the holes lave been checked, ~a~er was'f0und at 15,5' in test hole ~1 ~nd 12.5' in test. hole %2. ?his property has enough area for a future septic upgrade, ;hich can be seen on the attached site plan. This property is ~erved by a Community Water System. There are no protective ~ell radii which encroach upon the property. We do not mticipate any adverse effects on neighboring properties by ;he installation of the proposed septic system. if you have any questions, or require additional information ~or your review, please contact us. ON SITE WASTE WATER DISPOSAL SYSTEM DESIGN 17034 NORTH EAGLE RIVER LOOP · SUITE 204 · EAGLE RIVER, ALASKA 99577 (a~) uetunH "~ tllleeH '3deo ,to ~l igdlolun~ t66t t z Nnr LLJ :3'1i_-I0~: _2'll¥iZ] I 'S'.L'N PERFORMED FOR: Municipality of Anchorage DEPARTMENT OF HEALTH & HUMAN SERVICES 825 "L" Street, Anchorage, Alaska 99502-0650 SOILS LOG -- PERCOLATION TEST DATE PERFORMED: 1 2, 3 4 5 6 7 8 9~ ~o} 12 13 14 16- 17- 18- 19 20 COMMENTS !LQ.~- WAS GROUND WATER ENCOUNTERED? SLOPE ~--~b IF YES, AT WHAT ~- ~- DEPTH? pO E SITE PLAN Depth lo Water A~r ,-', Men orng? ~ I~'~ Dale: Reading Date Gross Net Depth to Net Time Time Water Drop PERCOLATION RATE L~ I (minutes/inch) PERC HOLE DIAMETER ESTRUNBETW~EN' ~ FTAND, ~(" PERFORMED BY: ~--~ ': .~.~ CERTIFY THAT THiS TEST WAS PERFORMED IN 170~4 Eagle River L~p Eoa8 NO. 2~ '~ 12-008 (Rev. 4/~) Eagle Fiver, Alat~a ~577 Municipality of Anchorage DEPARTMENT OF HEALTH & HUMAN SERVICES 825 "L" Street, Anchorage, Alaska 99502-0650 SOILS LOG -- PERCOLATION TEST PERFORMED FOR:. ~-~--..[~_~ C)]?.EM~ t6 ¢C ~q 5 6 7 8 9 DATE PERFORMED: ~'~-~ Township, Range, Section: SLOPE WAS GROUND WATER ENCOUNTERED? 11 s L IF YES, AT WHAT -- 12 DEPTH? . pO E Depth to Water Aiter ,.. 1 3 Monitoring? ['~'r:=' Dale: StTE PLAN 15 16 17- 18- 19- 20- Reading Date Dross Net Depth to Net Time Time Water Drop PERCOLATION RATE TEST RUN BETWEEN ~ FT A_?D ~' FT PERFORMED BY' ~ ~, ~ ~M~-l&~a~- I · //~I~N ~F~CT ON THIS DA CERTIFY THAT THIS TEST WAS PERFORMED IN ACCORDANCE WI~O~LF~LR~y~I~C~JI~Lq~ TE. DATE: 72-008 (Rev. 4/85) Eagle River~ Alaska 0N-SITE WASTEWATER DISPOSAL SYSTEM CONSTRUCTION PP. ACTICES and MATERIAL SPECIFICATIONS REFERENCE: Southpark Subdivision Addn. 92, Block 2, Lot 17 GENERAL: 1. De The scope of this project includes the installation of a 1250 gallon septic tank and a leachfield trench to serve the proposed four bedroom residence on the referenced property with an option to install the alternate pressurized absorption bed. 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. On all leachfield mound systems, the property owner shall be responsible for ensuring a satisfactory vegetation growth over the mounded area. Contractors installing wastewater disposal systems must be certified by the Municipal Health Department for system installations. Owners installing their own systems must also receive prior approval from the Municipal Health Department. SEPTIC TANK INSTALLATION: 1. A septic tank is to be constructed by a Certified septic tank manufacturer. Construction shall include two 4" cleanouts for pumping access. 2. The septic tank shall be sufficiently bedded to prevent settling or shifting of the tank. 3. Ail standpipes on the septic tank shall extend a minimum of 12 inches above final grade. Page Two Southpark Subdivision ~2, Block 2, June 11, 1993 Lot 17 4. Septic tanks installed with less than 4 ft. of cover shall be insulated. 5. 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 leaohfield. 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= 1. 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 (ruffed- up) before gravel (sewer rock) placement. 2. 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. 3. 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 and installed approximately in the locations shown on the design. 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. Page Three ~Southpark Subdivision 92, Block 2, June 11, 1993 Lot 17 Se 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. LEACHFIELD BED INSTALLATION: ® Excavate the proposed Bed Area to the depth shown on the design. The bottom of the excavation shall be within 2 inches of level. If the bottom of the excavation becomes smeared, it must be raked or scratched (ruffed-up) before gravel or sand placement. If a sand layer is required, place sand over entire excavation to the required depth shown on the design. The top of the sand layer must be within 2 inches of level. Sewer rock shall be placed uniformly throughout the entire bed. Perforated distribution pipe must be installed level with perforations down. Gravel depth below the perforated pipe shall be a minimum of six (6) inches. Gravel depth above the perforated pipe shall be a minimum of two (2) inches. The total gravel depth throughout the entire bed shall be a minimum of twelve (12) inches. e The perforated distribution pipes must be no more than six feet apart. The distance between the outermost perforated distribution pipes and the sidewall of the absorption bed must be no more than three feet. Se Silt barrier material 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. e Monitor tubes shall be of four (4) inch diameter and installed at the locations shown on the design. The portion of the monitor tube extending through the gravel depth shall be perforated six (6) inches below the bottom of the horizontal distribution lines. Page Four Sout~park Subdivision ~2, June 11, 1993 Block 2, Lot 17 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 finished grade over the bed must be mounded to prevent the formation of a depression after settling. MINIMUM MATERIAL SPECIFICATIONS: Any septic tank constructed by a manufacturer. proposed for installation must be Municipally approved septic tank e The following septic system Anchorage: pipe materials are approved for use in installations in the Municipality of Type of Pipe Perforated ~olid Cast Iron Yes Yes ASTM D3034 (PVC) Yes Yes ASTM F810 (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, Fernco, 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. Ail leachfield gravel (sewer rock) shall be 0.5"-2.5" screened gravel with less than 3% passing the 9200 sieve. 7. When sand is being used as a filter material, it's gradation specifications must conform to AMC 15.65.060D. Page Five Southpark Subdivision %2, June 11, 1993 Block 2, Lot 17 INSPECTIONS: Typically there will be a minimum of three (3) inspections required during the installation of the wastewater disposal system. These inspections will occur as follows: me 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. Se 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.