349 Plan Review 2016 PLAN REVIEW- SYSTEM COMPONENTS
City/Town Application No. ;016 - 7
Lot Number Address
OWNER
NAME
OWNER
ADDRESS
/om r ae./y/ /7G scUf/,
399 (/s /e ms PcI
TELEPHONE # ( ) 5585' 336 /
DESIGN
ENGINEER\SANITARIAN
FACILITY DESIGNED FOR
A. /
R// 5,ei✓4
Single or Multifamily dwelling
# Bedrooms 1 Garbage Disposal yes
no /
Total Design Flow yyU gallons per day
B. Other(describe) // ,, //
Design Basis :40/01 j'
'/7 J
Total Design Flow r!"!(/ �1 N . gpd
(4w1 = 6e ;P7 l
.yew: • j-�x des�-3N
• Patit L pli;
COMMENTS or PROBLEMS:
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ITEMS TO NOTE:
Pipe diameter
BUILDING SEWER
Schedule of pipe
/Watertight joints
Slope(min for 4" pipe is 0.01 or 1/8"per foot; desired slope is 0.02
or '/4" per foot) 5 =' ,0/41
J Invert elevation tlS_%iIYiag 100. G+0 eXt$4,0
0E44 A..v4 S
Length 44 /
✓ Alignment and grade
(manholes required at changes in both alignment and grade.)
Manhole(Must have metal frame and cover at grade)
/%0/ c '' C Xc t� }Zq I7vi/7Nq yid
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SEPTIC TANK
Tank size at least 200 % of design flow
(minimum tank size is 1,500 gal)
2"-3" drop from inlet to outlet
Minimum 4' liquid depth
Tees extend 6" above flow line
Inlet tee 10" below flow line (minimum)
Air space(3"above tees,9" above flow line)
Depth of outlet tee(minimum 14")
Access manhole over center of tank and each tee
Number of compartments=
-4deerdi
Septic tank detail provided ',//
Buoyancy calculation (if necessary)/
On 6"crushed stone
e ed
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DISTRIBUTION BOX
ITEMS TO NOTE:
.--••
Inlet elevations /7/9. 147
/
✓ Outlet elevations l/ ! i 2$
(7 Drop(inlet-outlet) /4'
V Sump(6"minimum) Baffle or inlet tee
J .- All outlets at same elevation ventilation
fr^ Manhole cover to grade # of outlets
Ve size of outlets(diameter)
I
//1,7 Y"�Distribution laterals: No. Size ,,)J 4L
r! Detail Provided gll
y,.
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Items to note:
/umber of of field(s):
V Number of fields
LEACH FIELD
Length 32 , Width aZ
Total area provided for disposal
(I x w x no.of fields)
1'
Field separation (10 ft. min)
767
(sq. ft.)
76f x
Gallons of treatment provided:
Bottom area x loading factor(from 15.242)_ 160 gal. tf�
(must be equal or greater than design flow) "Wye go.? C'
Note: Leaching area must be increased if garbage grinder is used.
Elevation of bottom of the field 126_1
(must be 4 ft/or 5 ft above max. high groundwater depending on perc rate.)
VNumber of distribution pipes
Type
Length (100'max.)
Slope(min. 0.005)
Spacing(6' max.)
r/Depth of stone beneath pipe
(min 6")
/ Plan states stone is double washed
17 2" cover of 1/S"to 14" stone over pipe crown
V Ends capped
— V Aggregate depth 6"minimum and 12"maximum
—V Depth of cover material above stone(min.9")
1/Construction of leaching facility in fill? Yes No
t/FW is specified as TitleV on plan
Certification on fill submitted
_ FIB is specified for 5' around entire system
17-Separation between lines (6 ft maximum)
_ Separation between lines and edge of bed-four feet maximum.
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LEACHING TRENCHES
/
Nusher of trenches ...24/ length 3R (max.100') width_(min.24)
i ocreinh of stone beneath pipe 6 n (6" min )
Ching area available
bottom= length x width x no. trenches =
side-lengthtd iFt2"7nax)x w x#of trenches 76Ssq 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 flo wr system
LEACHING AREA REQUIREMENTS SATISFIED? Yes V No
(note: leaching area must be increased if garbage grinder is used)
Ground water elevation:
5 feet separation
between trench bottom and max. gh groundwater.
r Trench spacing 3 x effective width or depth whichever is greater
french width 4 ft maximum
slope(min.0.005 slope,or 6"per 100 feet)
_ Backfill depth (min. of 9")
//Ends capped
dwilistribution lines exceeding 50 ft are vented.
_Diameter of distribution pipe y (min.3")
ljDlstribution line orifice (min. 3/8, max %")
./The area between trenches shall be designated as reserve area only when
e separation distance between the excavation sidewalk is at least six feet.
/th F' ' specified as Title Von plan
ertification 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:,
v M'ASS. REG. SANITARIAN, or_MASS. P.E. stamp and signature
'cale of 1"=40' for plot plan
frScale 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
zAocation 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
u " "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
—/c4/ %;7 (50-4 ,)e'fr,
lug)
—5irer �J 1
DWn elS -77;v7 + C et//)
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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
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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
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Dimensions L x W x D = Vol.
DOSING TANK
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
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ITEMS TO NOTE
Manufacturer
Installation
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.
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 sidewalk.
Manholes(min -one 20"access per unit; a 24"diem 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? Yes_No_
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PLAN REVIEW-SYSTEM SITING
Performed By. Approval#
Witnessed By Date
Location Address or
Lot Number:
Office Review
Owner's Name,
Address and
Telephone No.
Published Soil Survey: NO YES
Year Published Publication Scale Soil Map Unit
Drainage Class Soil Limitations
Surflcial 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
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Wetland Area:
National Wetland Inventory Map (map unit)
Wetlands Conservancy Program Map(map unit)
Current Water Resource Conditions(USGS): Month
Range: Above Normal
Other References Reviewed:
Normal_ Below Normal
Minimum setback distances (where applicable)shall be shown on the plan for the proposed
disposal facility (septic tank and soil absorption system.)
Property line
Soil Absorption
Septic Tank System(SAS)
10 10
Cellar waWinground
swimming pool 10 20
Slab Foundation I0 25
Water supply
pressure line 10 10
Surface waters
(except wetlands)
25 50
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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
Certified Vernal Pools
Private water supply well
or suction line
100 100
100 100
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
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Septic Tank
Soil Absorption
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
Downhill slope
Inspection Port(s)
Magnetic Tape
Correct#of deep hole per code revision
10 25
N/A 15'(min)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.
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EFFLUENT LOADING RATES
(gpd/sq.ftJday)
PERC.RATE SOIL CLASS
(minJin.) CLASS I CLASS H CLASS HI 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 - - 0.25
60 - 0.15
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