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245 Pan Review 2016 PLAN REVIEW - SYSTEM COMPONENTS City/Town 11.7/Zr L Application No...0 Lot Number Address 02 L 5 W t FL r,1,,S 2cf.. - )—JoreA OWNER mss— I NAME r V 0C.,u Q,tit c"-St OWNER ADDRESS .J 7 14). 1irnvcS Pc • H Iore,.. cP TELEPHONE # ( 9'75) Soo - 5543 DESIGN ic ENGINEERISANITARIAN Po," ow.�so�r FACILITY DESIGNED FOR A. /Single or Multifamily dwelling # Bedrooms Garbage Disposal yes no Total Design Flow 33 0 gallons per day B. Other(describe) Design Basis Total Design Flow ( (€S .i 4 3 gpd -PO co) COMMENTS or PROBLEMS: ift\Le triw.:,,u1, frn9/0 Pager 1 of 16 BUILDING SEWER ITEMS TO NOTE: 7 4/ a Pipe diameter Ihedule of pipe '! 6" ,"I . G Watertight joints v Slope (min for 4" pipe is 0.01 or 1/8" per foot; desired slope is 0.02 or /," per foot) Invert elevation at building tied,C c A/--)-1 -^> ?7 22 Length a? / Alignment and grade (manholes required at changes in both alignment and grade.) Manhole (Must have metal frame and cover at grade) tV / :7 G vT QCT O. II ---- / o? ei /'--../-., 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 7 7 ,75 97 i Minimum 4' liquid depth s./-. Tees extend 6" above flow line f Inlet tee 10" below flow line (minimum) 1"..---' Air space (3"above tees, 9" above flow line) Depth of outlet tee (minimum 14") Access manhole over center of tank and each tee f Number of compartments = ! Gas baffle on new construction Septic tank detail provided Buoyancy calcul ' sai.y On 6"crushed stone Pager 3 of 16 DISTRIBUTION BOX ITEMS TO NOTE: Inlet elevations ?� ! ‘‘ v g Outlet elevations L G, SQ Drop (inlet- outlet) /6 Sump (6"minimum) Baffle or inlet tee r !° All outlets at same elevation ventilation Manhole cover torade g #of outlets size of outlets (diameter) y Distribution laterals: No. 4/ Size Detail Provided Pager 4 of 16 LEACH FIELD Items to note: Dimension of field(s): Length Width Number of fields Field separation (10 ft. min) Total area provided for disposal (sq. ft.) (1 x w x no. of fields) Gallons of treatment provided: Bottom area x loading factor (from 15.242)= gal. (must be equal or greater than design flow) Note: Leaching area must be increased if garbage grinder is used. Elevation of bottom of the field (must be 4 ft/or 5 ft above max. high groundwater depending on perc rate.) Number of distribution pipes Type Length (100'max.) Slope (min. 0.005) Spacing (6' max.) Depth of stone beneath pipe (min 6") Plan states stone is double washed 2" cover of 1/8" to '''A" stone over pipe crown Ends capped Aggregate depth 6" minimum and 12"maximum Depth of cover material above stone(min.9") Construction of leaching facility in fill? Yes No Fill is specified as TitleV on plan Certification on fill submitted Fill is specified for 5' around entire system Separation between lines (6 ft maximum) Separation between lines and edge of bed - four feet maximum. Pager 5 of 16 LEACHING TRENCHES v Number of trenches /? , length 'VP (max.100') width (/ (min.24) 1 Depth of stone beneath pipe (6" min ) -Leaching area available bottom=length x width x no. trenches = l7/(/ X 3 sides =length x de th (2'max) x w x#of trenches sq ft. TOTAL = ��� sq ft. L-774/ 45‘. /Sf 11 X , 76)pd 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 perc rate(see 15.242) Total gallons treated by system design must be>design flow for system (J LEACHING AREA REQUIREMENTS SATISFIED? Yes (note: leaching area must be increased if garbage grinder is used) ✓Ground water elevation:4 ,r 5 feet separation between trench bottom an x. high groundwater. 'Trench spacing 3 x effective width or depth whichever is greater '''French width 4 ft maximum ✓/fipe slope (min. 0.005 slope, or 6"per 100 feet) E,G s/Backfill depth (min. of 9") C 4.1 s capped 9G.dO _ fir istribution lines exceeding 50 ft are vented. si iameter of distribution pipe (min. 3") Distribution line orifice(min. 3/8, max 3/.") 'The area between trenches shall be designated as reserve area only where • the separation distance between the excavation sidewalls is at least six feet. Fill is specified as Title V on plan Certification on Fill submitted Fill is specified for 5" around entire system �G. a 5 1a Pager 6 of 16 PLAN REVIEW CHECKLIST GENERAL INFORMATION CHECK TO VERIFY THAT THE PLAN INCLUDES THE FOLLOWING REQUIRED INFORMATION: MASS.REG. SANITARIAN H. MASS. P.E. stampand signature gnature Scale of 1"=40' for plot plan e of 1"= 20' for system component details ---4ZLegal boundaries of the facility being served including easements . which could affect the impact the system installation/performance. v All dwellings, buildings existingand proposed posed impervious areas ocation of all existing and proposed impervious areas Location and dimensions of the system including reserve area —_64 Design calculations: Sewage flow d Septic tank size required gp « pd / provided gpd North arrow, existing and proposed contours Locatio and log of deep hole observation test /O? 7 "slate of test ....------- existing /existing grade elevations for each test Pager 7of16 PLAN REVIEW CHECKLIST(cont.) VSIame of approving authority representative Name & approval no. of soil evaluator . Location and results of perc test Date of perc test l/Location of water lines and other subsurface utilities on facility Observed groundwater elevation in vicinity Z•mplete nity of the system profile of the system /A note on the plan listing all variances isions of 310 CMR 15.00 and local requirements sought invconjunction with theP lan Location and elevation of benchmark within 50 to 75 feet of the facility diwhich is not subject to dislocation or loss during conjunction of the facility /1 If dosing system is proposed: complete design and specifications of the system dosing chamber capacity; required provided number of dosing cycles, depth of cycles Pager 8 of 16 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 Iot 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. LEACHING AREA REQUIREMENTS: Total leaching area (bottom+sides) x loading factor from 15.242 = gals. This must be greater than or equal to the design flow for the system. Increase leaching area if garbage grinder is used. Distribution Trenches: every 20 feet Beds: area for pipe not to exceed 60 x 60 feet Spacing 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 '/"stone) 2"cover of 1/8"to '/"stone 4' separation between max. high GW and trench bottom? YesNT 0 Pager 11 of 16 PLAN REVIEW- SYSTEM SITING Performed By. Approval # Witnessed By ................................. Date Location Address or Lot Number: Owner's Name, Address and Telephone No. Office Review Published Soil Survey: NO YES Year Published Publication Dra' Scale........... Soil Map Unit mage Class 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 Wetland Area: National Wetland Inventory Map(map unit) Wetlands Conservancy Program Map(map unit) Current Water Resource Conditions (USGS): Month Range: Above Normal Normal Below 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) ______pcoperty line 10 10 -----Icellar wal/inground swimming pool 10 20 '/ Slab Foundation 10 25 r Water supply pressure line 10 /,/ 10 Surface waters (except wetlands) 25 50 Pager 13 of 16 Septic Tank SAS Z/ Bordering vegetated wetlands, salt marshes, inland and coastal banks 25 50 SURFACE WATER SUPPLY Reservoirs and impoundments 400 400 Tributaries to SWS 200 200 Wetlands bordering SWS or tributaries thereto 100 100 Certified Vernal Pools 100 100 VPrivate water supply well or suction line 50 100 PUBLIC WATER SUPPLY WELL _Gravel packed 400 400 250 250 V'Irrigation well 10 � 25 V Open, subsurface, or surface drains which discharge to SWS or tributaries thereto 50 100 Pager 14of16 Soil Absorption Septic Tank System _ Other open, surface or subsurface drains (ex- cluding foundation drains) which intercept seasonal high groundwater 25 50 =Other open, surface of subsurface drains (ex- cluding foundation drains 5 10 Leaching and catch basins & drywells 10 25 `Downhill slope N/A 15' (min) to top of 3:1 slope 17 Inspection Port(s) rMagnetic Tape Correct#of deep hole per code revision 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 (gpd/sq. ft./day) PERC.RATE SOIL CLASS (min./in.) CLASS I CLASS II CLASS III CLASS IV <5 0.74 6 0.60 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 3 0.33 0 _ 0.33 0.29 _ Loading criteria listed below apply only to the upgrade to 310 CMR 15.405 (1) (c)or systems constructed pursuant to existing10 CMR 15.417 pursuant 40 60 _ _ 0.25 0.15 Pager 16 of 16