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1089 Plan Review 2017 t PLAN REVIEW - SYSTEM COMPONENTS y City/Town ' IA_/ 11- /� LAC No. D/7 5 Lot Number Address /(/Q / �� d'...) /le . OWNER g arts / //k X Z S NAME Ad/Li/ P C 5 G o aY G �� OWNER —f aADDRESS / 7Od iAl $4 - 4/ /P TELEPHONE # ( ///3 ) 53 r1- 732/ DESIGN /` ENGINEER\SANITARIAN ri - (s'Gct_c c FACILITY DESIGNED FOR A. Single or Multifamily dwelling TP • kore: JS7 N a/24Gi /S #Bedrooms Air Garbage Disposal yesXy 5-'4) j�tGri.j� �� n Total Design Flow 66C) gallons perrie oH day Pel V r et' 15( 4/Q/ B. Other(describe) I/ /,/ a / Design Basis a 13 �p"%�/ f/t /tieAfete) Total Design Flow 6(;)g- gpd COMMENTS or PROBLEMS: 4/4/0/ p(L,9US/1 /1) ' / Pagerlof 16 L-:--_‘i6(74/4v5/1/ BUILDING SEWER ITEMS TO NOTE: Vit!Pipe diameter Schedule of pipe Watertight joints Slope (min for 4" pipe is 0.01 or 1/8"per foot; desired slo e is 0.02) or '''A" per foot) Invert elevation at building n' S= o?. Length dD 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 mwC.--/ = 7c, /c5 / Minimum 4' liquid depth /N ,✓ Tees extend 6" above flow line • fiNV� rf �O . o V Inlet tee 10"below flow line (minimum) OU Vei Air space(3"above tees, 9" above flow line) Depth of outlet tee(minimum 14") 1,7 Access manhole over center of tank and each tee Number of compartments= a Gas baffle on new construction I/ Septic tank detail provided Buoyancy calculation (if necessary) V On 6"crushed stone Pager 3 of 16 DISTRIBUTION BOX ITEMS TO NOTE: OO [/� pOai L/ Inlet elevations g7) 1 Outlet elevations p p i 2ti 1/7 Drop (inlet- outlet) ' ;0 Sump(6"minimum) Baffle or inlet tee All outlets at same elevation ventilation Manhole cover to grade # of outlets size of outlets (diameter) Distribution laterals: y Size 5-Lief 14 kr. Detail Provided "FeAld 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 use "-Elevation of bottom of the field (/7 \.' r/ "7---`p e-e't`'ev•e/ (must be 4 ft/or 5 ft above max. high groundwater depending on perc rate.) ‘Number of distribution pipes a�Type Length (100'max.) £Slope (min. 0.005) ung(6' max.) Depth of stone beneath pipe (min 6") n states stone is double washed cover of 1/8" to %" stone over pipe crown ed AAggregate d ggregate depth 6" minimum and 12" maximum ' D/ epth of cover material above stone (min.9") Construction of leaching facility in fill? Yes No `nth is specified as TitleV on plan Certification on fill submitted y� 'L� Fill��is specified for 5' around entire syste /teo /--�//2-0////22,��5 (Separation between lines (6 ft maximum �f?S 6� �s Separation between lines and edge o •ed - four feet maximum. Pager 5 of 16 LEACHING TRENCHES Ve'Number of trenches '/ / r 7 / J ,1,gth 2(0 (max.100')width v (min.24) Depth of stone beneath pipe (6" min ) ( IIM /y/ii , ✓ (Leaching area available if MAY 7 AM bottom=length x width x no. trenches= �7 (ci/es= length x depth (2'max)x w x#of trenches��6t/ sq ft. C ci/€Stga 71a.0 TOTAL = (oa$ sq ft. V / /a60 5.- x 0,53 cpcIA-F- /� w o�SJ 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 flow for system LEACHING AREA REQUIREMENTS SATISFIED? Yes No (note: leaching area must be increased if garbage grinder is used) /'Ground water elevation:�4�f t or 5 feet separation ✓,between trench bottom and nisi.high groundwater. Trench spacing 3 x effective wf'slth o depth whichever is greater Si i /c Q (..7"Trench widt m�mum/31� ss ✓Pipe slope ( 0.005 e, r 6" er 100 feet) _ 0 50 S/ e ,,-/et, v Backfill depth (mm. a psiN , 9 " /� 1" Ends capped 1' �y�rch ,/ Distribution lines exceeding 50 ft are vented. Diameter of distribution pipe i"l (min.3") Distribution line orifice(min. 3/8, max ''/.") _ The area between trenches shall be designated as reserve area only where u.V the separation distance between the excavation sidewalls is at least six feet. _ Fill is specified as Title V on plan ertification on Fill submitted FW 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: /v/wc (3iti.N C & 156— MASS. REG. SANITARIAN, or MASS. P.E. stamp and signature V Scale of 1"=40' for plot plan _Scale of 1"=20' for system component details 1 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 ry . /Location of all existing and proposed impervious areas VLoc and dimensions of the system including reserve area Design calculations: Sewage flow gpd Septic tank size required gpd /North " " provided gpd V North arrow, existing and proposed contours l'"---Location and log of deep hole obse ation test /n� J/_ �J� /�/� 1 205 date of test (L ON /C (� WA/ d 44-c 1) existing grade elevations for each test Pager 7 of 16 PLAN REVIEW CHECKLIST(cont.) __Name of approving authority representative Name & approval no.of soil evaluator Location and results of perc test Z.„..4;te of perc test '/Location of water lines and other subsurface utilities on facility Pr Observed groundwater elevation in vicinity of the system cgmplete profile of the system XI,� 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 Local n and elevation of benchmark within 50 to 75 feet of the facility w 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 .provided number of dosing cycles, _ depth of cycles Pager R of 16 PLAN REVIEW CHECKLIST (CON'T) Recirculating Sand Iters Complete plans 4 d specifications hydraulic profile _ location of the treatmen works and nearest existing street ___ street and lot number Pager 9 of 16 DOSING TANK C nU/+'P Chnn Gee _Dimensions L x W x D = Vol. /CCC In//eel) !% Number/size of siphons Nuber and size of pumps (No. Capacity gpm v Discharge size //� Per—gree /vtq, , Manholes to grade • /3 5 /A 4 s'6Ix V Groundwater elevation (min. 1 ft below inlet) 17 'mp controls _!//P�aAlarm(on separate power circuit) Buoyancy calculations(if needed) A ----Pump system calculations Pager 10 of 16 LEACHING CHAMBERS/PITS ITEMS TO NOTE Manufacturer Installation Bed Formation Number of beds o trenches Length Width Depth Leaching area available: bottom: (length x width x no. of pi = sides: (2 x (length x depth (2'max.)+ 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 ctor from 15.242 = gals. This must be greater •an or equal to the design flow for the system. Increase leaching area if garbs:e 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 •r width Beds: 4 feet between excava• • • sidewalk. Manholes (min -one 20"access per unit; a 24"diam for>2,000 gal units) Stone around chamber('I2"to 48"of Y "to 1 '/,"stone) 2"cover of 1/8" to Y:"stone 4' separation between max. high GW and trench bottom? Yes No Pager 11 of 16 PLAN REVIEW-SYSTEM SITING Performed By. Approval # Witnessed By. Date Location Address or Owner's Name, Lot Number: Address and Telephone No. Office Review / Published Soil Survey: O 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) ("4 Landform7.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) Property line 10 10 t Cellar waU/inground swimming pool 10 20 !/ Slab Foundation 10 25 (Water supply pressure tine 10 10 (//Surface waters (except wetlands) 25 50 Pager 13 of 16 Septic Tank SAS 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 Private water supply well or suction line 50 100 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 tributaries thereto 50 100 Pager 14 off 6 Soil Absorption Septic Tank System _Other open, surface or subsurface drains(ex- cluding foundation drains) which intercept seasonal high 7groundwater 25 50 _Other open, surface of subsurface drains (ex- cluding foundation drains 5 10 Leaching and catch basins & drywells 10 25 !!// nhill slope N/A 15' (min) to top of 3:1 slope Inspection Port(s) 1 Magnetic Tape _Correct#of deep hole per code revisio�[ 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 lI 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 - 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 40 - - 60 - 0.25 0.15 Pager 16 of 16 UW