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363 Plan Review 2015 PLAN REVIEW - SYSTEM COMPONENTS Citv/Town Application No. O?U/6/1 Lot Number Address OWNER NAME OWNER ADDRESS /rl( lc..N/L �l/l�✓ 3G3 /,45 /L 7 L /Pi f/�c,o( TELEPHONE# ( ) DESIGN ENGINEER\SANITARIAN Aler,(� /NNE S FACILITY DESIGNED FOR Ale/ A. X Single or Multifamily dwelling # Bedrooms / Garbage Disposal yes 3 d gar ,e).-44 2/� no /. Total Design Flow 3✓V gallons per day B. Other (describe) Design Basis 2 Total Design Flow 330 gpd COMMENTS or PROBLEMS: Pager I of 16 FILE COPY ITEMS TQN'OTE: Pipe diameter Schedule of pipe Watertight joints BUILDING SEWER P✓G t OR Slope (min for 4"pipe is 0.01 or 1/8" per foot; desired slope is 0.02 or V4" per foot) c� r Invert elevation at building Length /0/T tVAlignment and grade (manholes required at changes in both alignment and grade.) Manhole(Must have metal frame and cover at grade) Pacer 2 of 16 ITEMNOTE: Inlet elevations Outlet elevations mop (inlet- outlet) Z/ mp (6" minimum) All outlets at same elevation Manhole cover to grade !) size of outlets (diameter) 7 Distribution laterals: No. DISTRIBUTION BOX ' (7 Baffle or inlet tee ventilation q of outlets Detail Provided Size t] 5= D. 97 Pager 4 of 16 SEPTIC TANK Tank size at least 200 % (�of design flow 3 � P d x )00 Y'//1�� h(minimum tank size is 1,500 gal) 6 v 2"- 3"drop from inlet to outlet . / / ( d V V f/z wKl Minimum 4' liquid depth 1/"/ Tees extend 6" above flow line - Inlet tee 10" below flow line(minimum) Air space(3"above tees,9" above flow line) p Depth of outlet tee(minimum 14") �-_ Access manhole over center of tank and each tee Number of compartments = d' Gas baffle on new construction l Septic tank detail provided dif Buoyancy calculation (if necessary) - ply ft On 6" crushed stone V i"e Pager 3 of 16 LEACH FIELD ' Items to note: L �/ y X/(p Dimension of field(s): Length , ?7 Width i/� / 6 8 eey / Number of fields Field separation (10 ft. min) / Total area provided for disposal (sq. ft.) N (1 x w x no. of fields) 3 3 0 (7,30i----72 i7S VGallons 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. tit///4" Elevation of bottom of the field (must be 4 ft/or 5 ft above max.high groundwater depen ing on perc rate.) k PS = a7 Number of distribution pipes TN pe 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 %"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 /j/4 �o Ger /,7, 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 Number of trenches ,length (max.100') width_(min.24) Depth of stone beneath pipe (6" min ) Leaching area available bottom= length x width x no. trenches = sides =length x depth (2'max)x w x# of trenches sq ft. 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 pert rate(see 15.242) Total gallons treated by system design must be>design flooww'for system LEACHING AREA REQUIREMENTS SATISFIED? Yes , No ( note: leaching area must be increased if garbage grinder is used) Ground water elevation: 4 feet or 5 feet separation between trench bottom and max. high groundwater. _ 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) Backfill depth (min. of 9") Ends capped Distribution lines exceeding 50 ft are vented. _ Diameter of distribution pipe_(min.3") Distribution line orifice (min.3/8, max %") 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 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 v//SScale of 1"=40'for plot plan G Scale 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. v� All dwellings, buildings existing and proposed impervious areas v L cation of all existing and proposed impervious areas `Location and dimensions of the system including reserve area 1...-Design calculations: Sewage flow gpd Septic tank size required gpd " provided gpd Z----North arrow, existing and proposed contours / - Location and log of deep hole observation test of test existing grade elevations for each test Pager 7 of 16 PLAN REVIEW CHECKLIST (cont.) e of approving authority representative Name& approval no.of soil evaluator Location and results of perc test Date of perc test Location of water lines and other subsurface utilities on facility -47 Observed groundwater elevation in vicinity of the system complete profile of the system A note on the plan listing all variances to the provisions of 310 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: vomplete design and specifications of the system dosing chamber capacity; required , provided __Ourtbber of dosing cycles, _s,±lepih of cycles Pager 8 of 16 PLAN REVIEW CHECKLIST (CON'T) Recirculating Sand Filters Complete plans and specification _ hydraulic profile location of the treatment works and nearest existing street street and lot number Pager 9 of 16 DOSING TANK Dimensions L xW x D= Vol. / ,Number/ size of siphons T/ m _ Number and size of pumps (No. Capacity gP ///Discharge size Manholes to grade roundwater elevation (min. 1 ft below inlet) Pump controls Alarm(on separate power circuit) Buoyancy calculations(if needed) Pump system calculations Pager 10 of 16 ITEMS TO NOTE Manufacturer / Installation_ Y LEACHING CHAMBERS/PITS 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. sq. ft._ Total leaching area available= LEACHING AREA REQUIREMENTS: Total leaching area(bottom+sides) x loading factor from 15.242 flow gals. This must be greater than or equal to the design ow for the crease leaching area if garbage grinder is used. Distribution Trenches: every 20 feet Beds: area for pipe not to exceed 60 x 60 feet Trenches: 2 x effective depth or width Spacing Beds: 4 feet between excavation sidewalk. r/ Manholes (min -one 20" access per unit; a 24"diam for>2,000 gal units) Stone around chamber(12" to 48" of' " to 1 '/2" stone) '/2" cover of 1/8" to '/" stone VI/ 4' separation between max. high GW and trench bottom? Yes No Pager 11 of 16 PLAN REVIEW -SYSTEM SITING Performed By:................................ ............. Approval# ................. Date ..................... Witnessed By:............................................. y:............................................. Location Address or Lot Number: Owner's Name, Address and Telephone No. Office Review Published Soil Survey: NO YES Year Published ............Publication Scale...........Soil Map Unit Drainage 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 Pager 12 of 16 Wetland Area: National Wetland inventory Map (map unit) Wetlands Conservancy Program Map (map unit) Current 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 walFinground 10 20 swimming pool I Slab Foundation 10 25 ! 'Water supply 10 10 pressure line C/ Surface waters 25 (except wetlands) Pager 13 of 16 50 Septic Tank SAS _Bordering vegetated wetlands, salt marshes, 25 inland and coastal banks 50 SURFACE WATER SUPPLY 400 _Reservoirs and impoundments 400 //Tributaries to SWS 200 200 IV-Wetlands bordering SWS or 100 100 tributaries thereto Certified Vernal Pools 100 100 d Private water supply well 50 100 or suction line PUBLIC WATER SUPPLY WELL 400 rav4 packed 400 , LL 250 250 , ubular 10 25 irrigation well Open,su urface, or surface dr ins which discharge t\SWS or tributaries hereto 50 Pager 14 of 16 100 Septic Tank Other open,surface or subsurface drains (ex- cluding foundation drains) which intercept seasonal high groundwater Other open, surface of subsurface drains (ex- cluding foundation drains Leaching and catch basins& drywells (/ Downhill slope Inspection Port(s) r� 31agnetic Tape Correct#of deep hole per code revision 25 5 10 N/A 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 Soil Absorption System 50 10 25 15' (min)to top of 3:1 slope EFFLUENT LOADING RATES (gpd/sq.ft./day) PERC.RATE SOIL CLASS (minJin.) 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 0.60 10 0.37 15 0.56 0. 0.53 0.34 - 20 0.40 0.33 25 0.33 0.29 30 Loading criteria listed below apply only to the upgrade of existing systems pursuant to 310 CMR 15.405 (1) (c)or systems constructed pursuant to 310 CMR 15.417 0.25 40 60 Pager 16 of 16 0.15