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198 Plan Review City/Town PLAN REVIEW - SYSTEM COMPONENTS Lot Number Address OWNER NAME OWNER ADDRESS RA/ix5.15,4 Application No. 3`/,% g// 15 ;75 / TELEPHONE # ( 9/9 ) 307570 DESIGN 87/Sett.;/E/r/ 4 FACILITY DESIGNED FOR A. Single or Multifamily dwelling #Bedrooms y Garbage Disposal yes_ no /// Total Design Flow Iy0 gallons per dayKnJt €O" / y70 x /yr- WO B. Other(describe) Design Basis Total Design Flow COMMENTS or PROBLEMS: Pager I of 16 gpd r• .—. ����' ddd nn ) !li Q U Q ITEMS T,O NOTE: Pipe diameter ✓ Schedule of pipe /Watertight joints BUILDING SEWER Slope (min for 4" pipe is 0.001 Ur "per foot; desired slope is 0.02 or 'G"per foot) ✓ ,nom Invert elevation at building �i/✓'00 ✓ Lengtb " Alignment and grade (manholes required at changes in both alignment and grade.) Manhole (Must have metal frame and cover at grade) Pager 2 of 16 SEPTIC TANK Tank size at least 200 % of design flow (minimum tank size is 1,500 gal) 2"-3"drop from inlet to outlet Minimum 4' liquid depth Tees extend 6" above flow line ✓ Inlet tee 10"below flow line (minimum) Air space (3"above tees,9"above flow line) Depth of outlet tee(minimum 14") Access manhole over center of tank and each tee Number of compartments = Gas baffle on new construction 'Z- Septic tank detail provided Buoyancy calculation (if necessary) �^,n/ Neeet ✓ On 6"crushed stone Pager3 of16 ITEMS TO NOTE: DISTRIBUTION BOX ✓ Inlet elevations /9 .26 Outlet elevations / / r7, Drop (inlet-outlet) , 76 /▪ Sump (6" minimum) Baffle or inlet tee v /B outlets at same elevation ventilation v/A Manhole cover to grade # of outlets size of outlets (diameter) 7 " Sp/ i. Distribution laterals: No. 7 Size Detail Provided Pager 4 of 16 Items to note: /Dimension of field(s): VNumber of fields LEACH FIELD z �J� � j 4 Length ( I Width / 1 Total area provided for disposal (I x w x no.of fields) Gallons of treatment provided: Bottom area x loading factor (from 15.242) = (must be equal or greater than design flow) Note: eaching area must be increased if garbage grinder is used. Field separation 3V (l0 ft. min) (sq. ft) �� 36 " a� 19f gal. Elevation of bottom of the field / 93: 7f (must be 4 ft/or 5 ft above max. high groundwater depending on pert rate.) Number of distribution pipes Type / f5PR Length (100'max.)._�—_ Slope(min. 0.005) Spacing(6' max.) / _ Depth of stone beneath pipe / (min 6") t/ an states stone is double washed y"cover of 1/8" to 'A" stone over pipe crown_ nds capped /Cggregate depth 6" minimum and 12" maximum _Vie th of cover material above stone(min.9")_ �Qonstruction of leaching facility in fill? Yes Fill is specified as TitleV on plan Certification on fill submitted ' `B'is specified for 5' around entire system slope . 020 ,use/ /Y6 � e 83475 k i 411,/ f12‘ 3�a r 7D Ago loLlto 7-Separation between lines (6 ft maximum) Separation between lines and edge of bed-four feet maximum. Pager 5 of 16 LEACHING TRENCHES ,len _(max.100')width (min.24) er of trenches pth of stone beneath pipe (6" min) Leaching area available bottom=length x width x no. trenches= ft. sides= s length x depth (2'max) x w x#of trenches sq TOTAL = % sq ft. note: the effective depth shall be equal to the depth of the trenches below the invert of the distribution pipe up to maximum of 2 ft. Leaching are requirements: Total leaching area (bottom plus sides) x loading factor=gallons treated Loading factor is based on pere rate (see 15.242) Total gallons treated by system design must be>design w for system LEACHING AREA REQUIREMENTS SATISFIED? Yes ,No (note:jeaching area must be increased if garbage grinder is used) Ground water elevation: 4 feet or 5 feet separation /between trench bottom an max. high groundwater. v Trench spacing 3 x effective width or depth whichever is greater Trench width 4 ft maximum Pipe slope(min.0.005 slope, or 6" per 100 feet) ackfill depth (min. of 9") Ends capped Distribution lines exceeding 50 ft are vented. Diameter of distribution pipe_(min. 3") tstribution line orifice (min. 3/8,max %") �TThe area between trenches shall be designated as reserve area only where the separation distance between the excavation sidewalls is at least six feet. A k Fill is specified as Title V on plan Certification on Fill submitted Fill is specified for 5" around entire system Pager 6 of 16 PLAN REVIEW CHECKLIST GENERAL INFORMATION CHECK TO VERIFY THAT THE PLAN INCLUDES THE FOLLOWING REQUIRED INFORMATION: (/MASS. REG. SANITARIAN, or MASS. P.E. stamp and signature 1/ Seale of 1"=40' for plot plan e of 1"=20' for system component details Legal boundaries of the facility being served including easements which could affect the impact the system installation/performance. All dwellings,buildings existing and proposed impervious areas t/ Lpcation of all existing and proposed impervious areas ocation and dimensions of the system including reserve area Design calculations: Sewage flow Septic tank size required • " " provided gpd r/North arrow,existing and proposed contours LOCati n and log of deep hole observation test ate of test existing grade elevations for each test Pager 7 of 16 pd gpd PLAN REVIEW CHECKLIST (cont.) Name of approving authority representative P 0.5t�,� Name & approval no. of soil evaluator h Se�� r _/ocation and results of perc test /ate of perc test j °cation of water lines and other subsurface utilities on facility bserved groundwater elevation in vicinity of the system plete profile of the system Anote on the plan listing all variances to the provisions of /10 CMR 15.00 and local requirements sought in conjunction with the plan _ Location and elevation of benchmark within 50 to 75 feet of the facility which is not subject to dislocation or loss during conjunction of the facility If dosing system is proposed: complete design and specifications of the system dosing chamber capacity; required number of dosing cycles, depth of cycles Pager 8 of 16 , provided PLAN REVIEW CHECKLIST (CON'T) Recirculating Sand Filters Complete plans and specifications hydraulic profile location of the treatment works and nearest existing street street and lot number Pager 9 of 16 DOSING TANK Dimensions L x W x D=Vol. Number/size of siphons Number and size of pumps (No. , Capacity_gpm Discharge size Manholes to grade Groundwater elevation (min. 1 ft below inlet) Pump controls Alarm(on separate power circuit) Buoyancy calculations (if needed) Pump system calculations Pager 10 of 16 LEACHING CHAMBERS/PITS ITEMS TO NOTE Manufacturer Installation Bed Formation Number of beds of trenches Length Width Depth Leaching area available: bottom: (length x width x no. of pits) = sides: (2 x(length x depth (2'max.)+(2 x (width x depth (2'max) x# of pits. Total leaching area available= sq. ft., N f LEACHING AREA REQUIREMENTS: Total leaching are (bottom+sides)x loading factor from 15.242 _ gals. This must be greater than or equal to the design flow or the system. Increase leaching area if garbage grinder is used. Distribution Spacing Trenches: every 20 feet Beds: area for pipe not to exceed 60 x 60 feet Trenches: 2 x effective depth or width Beds: 4 feet between excavation sidewalls. Manholes(min -one 20" access per unit; a 24"diam for> 2,000 gal units) Stone around chamber ('12"to 48" of%" to 1 Y." stone) 2" cover of 1/8" to 'k"stone 4' separation between max.high GW and trench bottom? Yes No- Pager L I of 16 PLAN REVIEW- SYSTEM SITING Performed By Approval# Date Witnessed By Location Address or Lot Number: Office Review Published Soil Survey: Year Published Drainage Class Owner's Name, Address and Telephone No. NO _ YES Publication Scale Soil Map Unit Soil Limitations Surficial Geologic Report Available: No Yes Year Published Publication Scale Geologic Material (Map Unit) Landform Flood Insurance Rate Map: Above 500 year flood boundary No Yes_ Within 500 year boundary No_ Yes Within 100 year flood boundary No_ Yes Pager 12 of 16 Vetland Area: National Wetland Inventory Map (map unit) Wetlands Conservancy Program Map(map unit) :urrent Water Resource Conditions (USGS): Month Normal Below Normal Range: Above Normal Other References Reviewed: Minimum setback distances (where applicable) shall be shown on the plan for the proposed disposal facility(septic tank and soil absorption system.) Soil Absorption Septic Tank System(SAS) 10 Property line 10 Cellar waNinground 10 20 swimming pool Slab Foundation 10 25 Water supply 10 10 pressure line Surface waters 25 (except wetlands) Pager 13 of 16 50 Septic Tank SAS Bordering vegetated wetlands,salt marshes, 50 inland and coastal banks 25 SURFACE WATER SUPPLY Reservoirs and impoundments 400 400 Tributaries to SWS 200 200 Wetlands bordering SWS or 100 100 tributaries thereto Certified Vernal Pools 100 100 Private water supply we0 50 100 or suction line PUBLIC WATER SUPPLY WELL _Gravel packed 400 400 _Tubular 250 250 Irrigation well 10 25 _Open,subsurface, or surface drains which discharge to SWS or 50 100 tributaries thereto Pager 14 of 16 Septic Tank Soil Absorption System Other open,surface or subsurface drains (ex- cluding foundation drains) which intercept seasonal high 25 50 groundwater _Other open,surface of subsurface drains(ex- cluding 5 10 foundation drains Leaching and catch basins & drywells Downhill slope Inspection Port(s) Magnetic Tape Correct# of deep hole per code revision 10 25 N/A 15' (mm)to top of 3:1 slope Note: slope stabilization shall be provided(including retaining walls) when an adjacent downhill slope to a disposal facility is greater than 3:1. Pager 15 of 16 EFFLUENT LOADING RATES (gpolsq. ft./day) PERC.RATE SOIL CLASS (min./in.) CLASS I CLASS II CLASS III CLASS IV <5 0.74 0.60 6 0.70 .0.60 7 0.68 0.60 - 8 0.66 0.60 10 - 0.60 15 0.56 0.37 20 0.53 0.34 25 0.40 0.33 30 0.33 0.29 to o3 0 ding criteria CMR 15.405t(1) (c) or s stemstconstructed pursuant to 310 sCMR 15.417 pursuant to the upgrade of existing 0.25 40 0.15 60 Pager 16 of 16