21 Plan Review 2016 PLAN REVIEW - SYSTEM COMPONENTS /
City/Town4.411L1 ApplicationlNo.pD/((O'//
Lot Number Address a I J4L1c.G.ICf t t�•
NAME SIBS
OWNER 9 vile Cf. ('h,,'h7"te(C s r -IAA .
ADDRESS Y
TELEPHONE # ( )
DESIGN 1�l IMI
ENGINEER\SANITARIAN ec y
FACILITY DESIGNED FOR \/ /
A. V Single or Multifamily dwelling
# Bedrooms 3 Garbage Disposal yes
n ✓
o
Total Design Flow 33 C) gallons per day
B. Other(describe)
Design Basis
Total Design Flow gpd
COMMENTS or PROBLEMS:
Pager 1 of 16
BUILDING SEWER
ITEMS TO NOTE: /'VG
'i y0 y /,
Pipe diameter
�/ Schedule of pipe /9,
1. /Watertight joints
Slope (min for 4"pipe is 0.01 or 1/8"per foot; desired slope is 0.02
or Y."per foot) erg
p
Invert elevation at building /7. O 5
Length /!•Gd
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) �+
5-DepAir space(3"above tees,9" above flow line) / 4/5-
Depth
th of outlet tee (minimum 14") /
Access manhole over center of tank and each tee
Number of compartments= 2 e 5—
Gas baffle on new construction
Septic tank detail provided
Buoyancy calculation(if necessary)
On 6"crushed stone
Pager 3 of 16
DISTRIBUTION BOX
ITEMS TO NOTE: /,
Inlet elevationslf
! 9 9/
' Outlet elevations ' 7
!.// Drop (inlet- outlet) 7
t/ Sump(6"minimum) Baffle or inlet tee
17 All outlets at same elevation ventilation
Manhole cover to grade # of outlets
3 .
ir size of outlets(diameter)
a
•
Distribution laterals: No. 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 4"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
FW 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 perc 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 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.
FID is specified as Title V on plan
Certification on Fill submitted
Fill is specified for 5"around entire system
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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
Scale of I"m 40'for plot plan
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.
_ All dwellings, buildings existing and proposed impervious areas
Location of all existing and proposed impervious areas
Location and dimensions of the system including reserve area
Design calculations: Sewage flow gpd
Septic tank size required gpd
" "provided gpd
_ North arrow,existing and proposed contours
_ Location and log of deep hole observation test
date of test
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
Date of perc test
Location of water lines and other subsurface utilities on facility
_ 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:
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 lot number
Pager 9 of 16
DOSING TANK
Dimensions L x W x D=Vol.
Number/size of siphons
(/ umber and size of pumps (No.(Capacity gpm
/ N
V.
Discharge size
Manholes to grade
,G 4 € I��roundwater elevation(min. 1 ft below inlet) Q Dine ' '713v G4//./✓ls
v Pump controls
(let t.). es /
Alarm(on separate power circuit)
i// ///
Buoyancy calculations (if needed) p 6k/�j,.�5
/Pump system calculations / / (/ ro /C
5fec5 /de14. . 7tcov�c/PJ �J d J
Pager 10 of 16
LEACHING CHAMBERS/PITS
ITEMS TO NOTE
Manufacturer /474...,04'5 �,%' (W �J70 (..24),installation //'
_ Bed Formation
Ar Number of hal.eatwaseites Length(cc 'otaefas//, 3/ r
„,/ iv-,ji: . t�.+i Width 4 r X.
Depth ®®L / - / I
Leaching area available: '—a ' 4IrwrrS O.v. 14 f/o.h�JCC
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. R.'I /// •/ .
.pr�'/y 3 OeS xi _' 41,C5 /i ie.✓
LEACHING AREA REQUIREMENTS: /
files,✓,eat/
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.
V' 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 sidewaW.
Manholes (min-one 20"access per unit; a 24"diam for>2,000 gal units)
V Stone around chamber('12"to 48"of 3: "to I 'A"2stone) /
2"cover of 1/8"to 'h"stone C-3 J laX..S Co+•ci�'K S4..•41
47.4' separation between max. high GW and trench bottom? Yes_se
No
5'--> y ' relic-A°4-1
Pager 1 1 of 16
ili
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: NO YES f/
Year Published Publication Scale Soil Map Unit
Drainage Class Soil Limitations
SurficW 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)
/Property line 10 10
(/ CellarwaWinground
swimming pool 10 20
Slab Foundation 10 25
Water supply
pressure line 10 10
Surface waters
(except wetlands) 25 50
Pager 11 of 16
Septic Tank SAS
Bordering vegetated
wetlands, salt marshes,
inland and coastal banks 25 50
��SURFACE WATER SUPPLY
!�Reservoirs and impoundments 400 400
p Cributaries to SWS 200 200
Wetlands bordering SWS or
tributaries thereto 100 100
Certified Vernal Pools 100 100
pirivate 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 of 16
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
� pectiou Port(s)
I/Ins
Y Magnetic 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
(gpolsq.ftJday)
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 - -
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 fisted below apply only to the upgrade of existing systems punuant
to 310 CMR 15.405(1)(c)or systems constructed pursuant to 310 CMR 15.417
40 - - - 0.25
60 - - - 0.15
Pager 16 of 16