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HomeMy WebLinkAboutSAND LAKE #2 BLK 5 LT 23, 24 Municipality of Anchorage Department of Health and Human Services Division o! Environmental Services On-Site Services Section 825 %' Sb'eet Room 502 P.O. Box 196650 Ancflorage, AK 99519-6650 www.ci.anchorage.ak.us (907) 343-4744 ON*SITE WASTEWATER DISPOSAL SYSTEM AND/OR WELL INSPECTION REPORT Permit Number: Name Mary J, Belton 8222 Seaview Ave. SW020270 Anchorage, AK 99516 Two (2) LEGAL DESCRIPTION Sand Lake No. 2 5 23 Well: Existing Class C I r~. SEPARATION DISTANCES T~ TO SeplJc Absorption lift Holding F~,~ Tank Field Slation Tank w. >100' >100' N/A N/A ~=w,,.>lO0' >100' N/A N/A ~ >5' >10' N/A N/A >5' >10' N/A N/A PID Number: 011-134-114 Wastewater System: New Page I of 3 ABSORPTION FIELD 5' Wide Shallow Trench 1.2 c~e 11.5 F,. 3 ~,. 8.5 ~,. .5 F,. 31 F,. 4 ~,. I FL 527 Fe ASTM D3034 PVC Acreage Systems 8/7-8/2002 TANK - NEW c~.~o~ None Noted Existing Septic Tank and Absorption Pit Were BENCH MARK Pumped, Crushed, Back'filled and Abandoned On Site. 2" Insulation Placed Over Tank and Trench. See Door Stoop at Work Shop. Waiver to Class C Well. [;~ Septic [-I Holding n S.T.E.P. n Other:. S.,.rU. Anchorage Tank I 1,250 >25' Steel ~ Two (2)  LIFT STATION - NONE ON LOT 100.0 r,. Inspections performed by: M___EA Department of I- e~and Reviewed and approved by: Q'~I Dates: 1" 8/7/2002 2"~ 8/8/2002 Human Services approval Date: Municipality of Anchorage DEVELOPMENT SERVICES DEPARTMENT 4700 South Bragaw Street Anchorage, AK 99519-6650 - 343-7904 On-Site Wastewater Disposal System or Well Inspection Report Page 2 of 3 Permit Number SW020270 PID No. 011-134-14 WEST 82"0 AVENUE Gravel Drive Garage Work Shop c! C3 $; $1 ~ Green llouse D Long x 3' Wide x.8.5 Ef [ective Dopth Absorption Trench 'TIII x . LOT 24 1~250 23 Septic x 42' Mobile 2 B~droom ~ome I II Gravel Drive Way NOTE: Existing Septi Ab$o[p~ion Czl~s~e~ and A B S1 36.7 26.6 S2 30.4 29.9 C4 30,7 60.6 M1 23.6 35,1 C3 26.5 34.7 PLAN AS-BUILT SCALE 1" = 20' Municipality of Anchorage DEVEOPMENT SERVICES DEPARTMENT 4700 South Bragaw Street Anchorage. AK. 99519-6655 - 343-7904 On-Site Wastewater Disposal System or Well Inspection Report Permit Number. SW020270 Page 3 of 3 PID No.: 011-134-14 r- '3 95.4 00.5 31' PROFILE Scole: 1' - 10' 98.,5 ~ 0`5.4 Dr'oinf'ietd Rock AS-BUILT MUNICIPALITY OF ANCHORAGE Development Services Depe~ment On-Site Wafer & Westewater Program 4700 South Bragaw Street P.O. Box 196650, Anchorage, AK 99519-6650 (907) 343-7904 ON-SITE WASTEWATER DISPOSAL SYSTEM PERMIT Upgrade Date Issued: Aug 05, 2002 Expiration Date: Aug 05, 2003 Permit Number: SW020270 Legal Description: SAND LAKE #2 BLK 5 LT 23 Design Engineer: 0014 Anderson Engineering Owner Name: Mary J. Belton Owner Address: 8222 SEAVIEW STREET ANCHORAGE, AK 99502-4138 Total Bedrooms: 2 Pamel ID: 011-134-14 Site Address: 008222 SEAVIEW ST Lot Size: 6750 SQ. FT. Permit Bedrooms: 2 This permit is for the construction of: [] Disposal Field [] Septic Tank [] Holding Tank [] Privy [] Private Well [] Water Storage All construction must be tn 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,Naska 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 Safety Division On-Site Water and Wastewater Program 4700 South Bragaw SL P.O. Box 196650 Anchorage, AK 99519-6650 www.ci.anchorage.ak.us (907) 343-7904 ON-SITE SEWEPJVVELL PERMIT APPLICATION FOR A SINGLE FAMILY DWELLING Parcel I.D. 0t1-134-t4 Permit Number SW O ,,~ O ~ ~O Property owner(s) Mary J. Belton Mailing address (1) 8222 Seaview Avenue Anchorage, AK 99502 Mailing address (2) Zip Code Legal description (Lot, Block & Sub'd.) Lot 23, Block 5, Sand Lake Subdivision No. 2 Legal description (Section, Township & Range) Lot Size 6,750 SF Acres/Sq. Ft. Number of Bedrooms Two (2) THIS APPLICATION IS FOR: Sewer Only Sewer and Well Sewer Upgrade THIS PROPERTY CONTAINS: Hot Tub Swimming Pool Therapy Pool Day phone 345.2122 [] Well Only [] [] Water Storage [] Jacuzzi Water Softening Unit 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 or authorized agent) Permit Fees: n~ e~O0 Date of Payment: '~- Z ~/- ~ 7,., Receipt Number: (Rev. 12/00) Waiver Fees: Date of Payment: Receipt Number: ANDERSON ENGINEERING P.O. BOX 240773 ANCHORAGE, AK 99524 522-7773 522-6779 (FAX) MEMORANDUM DATE: August 5, 2002 TO: Dan Roth FROM: Mike Anderson, P.E. SUBJECT: Lot 23, Block 5, Sand Lake Subdivision No. 2 Septic System Upgrade Construction Perrait Attached is the revised permit application to upgrade the septic system on the subject lot. We have added dimensions from the mobile home to the septic tank. Dimensions from the lot lines were previously shown. We have also added slope information showing the lot to be virtually fiat. An easement has been executed allowing the absorption trench on the adjoining lot. A copy of the easement is attached. We have also included the waiver to the Class C Well, which was finally issued by ADEC. The permit application has been modified to show a two-bedroom home. All comments have been incorporated into the design and permit application. Please let me know if you have additional questions. EASEMENT FOR A PRIVATE SEPTIC SYSTEM DRAINFIELD FOR THE BENEFIT OF LOT 23, BLOCK 5, SAND LAKE SUBDIVISION NO. 2 ANCHORAGE RECORDING DISTRICT, ALASKA LEGAL DESCRIPTON A strip of land 5 (five) feet wide and 35 (thirty-five) feet long lying in Lot 24, Block 5, Sand Lake Subdivision No. 2, and beginning more particularly described as follows: Beginning at the southeast comer of said Lot No. 24 thence N89°59'W 66' along the south line of said Lot No. 24 to a point; thence N0°6'W 8 feet to the POINT OF BEGINNING; thence N0°06'W 35' to a point; thence N89°59'W 5' to a point; thence S0°06'E 35' to a point; thence S89°59'E 5' to the POINT OF BEGINNING. GRANTOR: MARY BELTON, OWNER LOT 24, BLOCK 5, SAND LAKE SUBDIVISION NO. 2. STATE OF ALASKA ) )SS: THIRD JUDICIAL DISTRICT ) The foregoi,~g instrument w_as acknowledged before me this 2002 by I~''1'' dayof Nota~'~r Alaska My Commission Expires: '/,~)¢'. DEPT. OF ENVIRONMENTAL CONSERVATION DIVISION OF ENVIRONMENTAL HEALTH DRINKING WATER and WASTEWATER PROGRAM 555 CORDOVA STREET ANCHORAGE, AK 99501 http://www.state.ak, us/dec/home/htm TONY IOVOWLES, GOVERNOR Telephone: (907) 269-7696 Fax: (907) 269-7650 August 2, 2002 Michael E. Anderson, P.E. Anderson Engineering P.O. Box 240773 Anchorage, Alaska 99524 Subject: Lots 23 and 24, Block 5, Sand Lake Subdivision, #2;Wastewater Disposal System Waiver Request from an Existing Class C Public Water System Source Well; Review Dear MrJ Anderson: This is response to your letter received in this office on June 20, 2002 in which you requested the Department to grant separation distance waivers between the proposed wastewater disposal system to be located on Lots 23 and 24, Block 5, Sand Lake Subdivision, #2 and the Class C public water system source well located on Lot 21, Block 5, Sand Lake Subdivision #2. I have completed my review of the Department's files on the existing public water system, the previously issued separation distance waivers in Block 5, Sand Lake Subdivision, and the submitted information. Based on this review, I believe that the requested waivers are reasonable. As noted above, you have requested the Department to grant separation distance waivers between the proposed wastewater disposal system to be located on Lots 23 and 24, Block 5, Sand Lake Subdivision, #2 and the Class C public water system source well located on Lot 21, Block 5, Sand Lake Subdivision #2. Noting not only the depth of the source well on Lot 21 bm other source wells in the area, the continued low levels of nitrates, and the lack of total coliform bacteria, the waiver requests are reasonable. Therefore, in accordance with the Drinking Water Regulations [18 AAC 80], the following waiver is being granted: · The horizontal separation distance between the Class C public water system source well located on Lot 21, Block 5, Sand Lake Subdivision, #2 and the proposed septic tank on Lot 23, Block 5 Sand Lake Subdivision #2 serving a single family home has been waived from 150 feet to 1 l0 feet. · The horizontal separation distance between the Class C public water system source well located on Lot 21, Block 5, Sand Lake Subdivision, #2 and the proposed drainfield located on Lot 24, Block 5, Sand Lake Subdivision, #2, serving a single family home has been waived from 150 feet to 125 feet. Michael E. Anderson Page 2 08/02/02 The above noted distances were taken from your submittal. If the proposed wastewater disposal system located on Lots 23 and 24, Block 5, Sand Lake Subdivision #2 fails or needs to be upgraded, this waiver becomes invalid. For this waiver to remain valid the following items will need to be provided: 1. A copy of the record drawings of the installation of the proposed septic tank and soil absorption systems to ensure that the above noted separation distances are being maintained. 2. The copy of the Inventory and Source Registration for Class C Public Water System with Sections A1 and D completed will need to be submitted to this office. 3. Authorization from the owner of Lots 23 and 24, Block 5, Sand Lake Subdivision allowing you to apply for a separation distance waiver from this Department. The issuance of these separation distance waivers does not imply the granting of any additional authorizations, nor obligate any local, state, or federal regulatory body to grant required authorizations. Thank you for your cooperation with this office. If you have any questions, please do not hesitate to contact me. Enclosures: As Stated / Cc: Jim Cross, P.E., MO~,/ STrely' Keven K Kleweno, P.E. Environmental Engineer : ',,?ANDERSON :ENGINEERING ;":::';ATNCHORAGE'AK99524~ :' :' ':': 522 7773 ' ~ ::' 522-,6779 (FAX) : July 23, 2002 Municipality of Anchorage Development Services Department On-Site Water and Wastewater Program 4700 South Bragaw Street Anchorage, AK 99519-6650 Subject: Lots 23 and 24, Block 5, Sand Lake Subdivision Septic System Design and Permit Application Impacts to Adjacent Properties Dear Onsite Services Engineer. The existing septic system on Lot 23, Block 5, Sand Lake Subdivision has failed and must be replaced to avoid damage to private property. We are therefore requesting a permit be issued for the construction of a new septic system to serve the existing mobile home and work shop. The attached Site Plan and backup documentation identify the location and configuration of the new septic system and the parameters used in the design. Also identified on the plans are the test hole locations and the locations of the wells and septic systems on the adjacent lots. Drainage arrows are also shown and current drainage patterns will be maintained al'l. er construction. Both Lots 23 and 24 have the same owner, The absorption trench will be constructed on Lot 24 with the septic tank on Lot 23. The property is served by a Class C Well located on Lot 21. A waiver of the protective radius to 100' was requested from ADEC over a month ago. We ara confident the waiver will be issued and a copy will be forwarded to you when it becomes available. The test holes placed near the location of the proposed absorption trench indicated clean well graded well graded sand with varying amounts of gravel and silt and a percolation rate of 1 to 2 minutes per inch. No groundwater was found dudng the placement of the test hole and none has been noted since. We are therefore proposing to construct a 3' wide deep absorption trench with 8.5' of drain field rock beneath the distribution pipe. The total depth of the trench will be 12' with the distribution line at 3.5' below the surface. The total length of the trench will be 30'. The ground surface on the lot slopes as shown on the attached Site Plan with fairly shallow to no slope from west to eas. t in the area of the new trench. The new absorption trench will be constructed ,n a fiat area in conformance with Municipal requirements and parallel to ground contours where possible. Ail components of the new trench will be constructed a minimum of 100' from the Class C Well on Lot 21. The system will also be constructed a minimum of 100' from any surface water in the area. I:.ots 23 & 24, Block 5, Sand Lake July 23, 2002 Page Two If the system is constructed in accordance with our design the following statements apply: 1. 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. 2. 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. 3. The system, if constructed as designed, will have no adverse impact on reserve space, either surface or subsurface, on any lots located in the area. 4. 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 Lots 23 & 24, Block 5, Sand Lake No. 2 Septic System Upgrade /I WEST EIGHTY SECOND STREET LOT ~ 3 LOT s LOT 6 UNKNOWN LOT 8 Home LOT 21 :;:> .<~ · -LOT 20 LOT ~" '~ LOT 18 LOT 17 LOT 25 LOT 21 LOT $ ¢%~;:~c'----'' LOT 20 / LOT 6 LOT 19 WEST 82N° AVENUE G~avel Drive Way 5 Parking 1% 0% Garage 10' Work Shop SCOPE OF WORK: ~_ ~ Green House D 30~' Long x 3' Wide x 8.5' Ef[ective Dopth /~sorption Trench TI! ! ~< LOT 24 1. Pump, Crush and Backfill Existing Septic Tank. 2. Pump, Crush and Backfill Existing Absorption Crib. 3. Intercept Existing Sewer Service Line Near Foundation. 4. Place New 1,250 Gallon Septic Tank. 5. Construct New 30' Long X 3' Wide X 8.5' Effective Depth Absorpfion Trench. 6. Place Foundation Cleanout and Service Line From Shop to New Septic Tank. 7. Regrade All Disturbed Areas. 8. RevegetateAreaAsRequlred. SITE PLAN SCALE 1" = 20' LOT 23, BLOCK 5, SAND LAKE SUBDIVISION DESIGN FACTORS: SYSTEM REQUIREMENTS: Four Bedroom Home Perc. Rate: 1Min./Inch Avg. Application Rate: 1.2 GPDISF Deep Trench System 1,250 Gallon Septic Tank 8.5' Drain Field Rock 4 Bedrooms X 150 GPD 11.2 GPDISF = 500 SF of Absorption Area 500 SFI17 SF/LF = 29.4 LF Trench Length Therefore: Construct an Absorption Trench 30' in Length by 3' Wide With 8.5' of Drainfield Rock Beneath the Distribution Lateral. Distribution Lateral to Be Placed 3.5' Below Existing Ground. Total Depth of Trench to Be 12' Below Existing Surface. Cover Over Septic Tank a Minimum of 4' or 2" of Insulation and 2' of Cover 3~0~ Natural Backfill 8~6- Geotextile Fabric 4" Perforated.PVC $chedtxle 40 NOTE: TYPICAL DEEP TRENCH SECTION (NO SCALE) .' Grade Area Over Trench to D~in Away. ~inlmum ~0' [rom lot Line. Minimum 4' Separation From Groundwater. Minimum 100' Sepa~tion From Wells in the Area. ~ ................ : .... Minimum 10' Sepa~tion From Water Se~ice Line. :. Mumc~pahty of Anchorage ~ ...= ~ ---r ---'d'"'~"f 'J' Development Services Department/On-Site Water and Wastewater Program 4700 South Bragaw St. Anchorage, AK 99519-6650 ~?~, · ~o .'~ *~' ~ ~'~ SOILS LOG- PERCO~TION TEST Performed For: ~n~ Dellon Dnte Performed: ~/3~002 L~nl Des~ption: Lol 24. Bi~R 5.8nnd L~ke Subdivision 5 6 7 1 11 12 13 14 15 16 17 18 OG SW Fine Sand Some Gravel Dry Loose SLOPE SITE PLAN Bottom of Hole Was Groundwater Encountered? No S If Yes, What Depth? L Depth to Water O After Monitoring None P Datc: 7/2~'02 E 21 Reading Date Gross Time I 3-Jun 12:05 2 12:15 3 12:16 4 12:26 5 12:27 6 12:37 7 12:38 8 12:48 Parc. Rate: 1 MinJInch See Site Plan 0% Net Depth To Net Time Water Drop 0.875 10 Dry 9.5 1.000 10 Dry 9.375 1.000 10 Dry 9.375 1.000 10 Dry 9,375 Perc. Hole Diameter: 6" Test Run Between 5 Ft. and 6 Ft. Comments: Percolation Cavity Presoaked Prior to Testing. Performed By: ~ I, Michael E. Anderson Certify That This Test Was Performed In Accordance With All State and Municipal Guidelines In Effect On This Date: 7/22/02 ON-SITE WASTEWATER DISPOSAL SYSTEM CONSTRUCTION AND MATERIAL SPECIFICATIONS SUBJECT: LOTS 23 & 24, BLOCK 5, SAND LAKE SUBDIVISION GENERAL: The scope of this project includes the pumping, crushing and backfilling of the existing septic tank and absorption cdb. It also includes the procurement and placement of a new 1,250 gallon septic tank at the location shown on the site plan and the construction of a 30' long by 3' wide by 8.5' effective depth absorption trench also shown on the Site Plan. The total depth of the trench will be 12' below existing ground and the distribution pipe will be placed at 3.5' below the surface. All components of the absorption trench must be constructed a minimum of 100' from the well on this and all adjacent lots. 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. 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. 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. 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 pdor approval from D.H.H.S. before beginning system installation. SEPTIC TANK INSTALLATION 1. The 1,250 gallon septic tank must be procured from an approved septic tank manufacturer and installed at the location shown. 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 budal insulation. · · Lots 23 & 24, Block 5, Sand Lake July 23, 2002 Page 2 of 2 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. Distribution piping must be placed level with perforations down atop a level 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. Contractor shall vedfy 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. o 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 trench to drain away. A minimum 2' of accepting soil is required below the drainfield rock for a 5' wide trench. Contractor shall vedfy this condition prior to placement of the rock. Ail 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). Insulation shall be at least 2" thick extruded direct burial polystyrene (Dow Chemical Co. Styrofoam HI or equal). Septic tank inlets and outlets shall be fitted with watertight couplings (Caulder, Femco, or equal). · ' Lots 23 & 24, Block 5, Sand Lake July 23, 2002 Page 3 of 3 5. A permeable geotextile fabdc (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: Municipal Ordinance requires a minimum of two inspections. 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 fabdc, 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.