38 Plan Review 2016 City/Town
PLAN REVIEW - SYSTEM COMPONENTS
Application No. (22(:)/6—/57
Lot Number Address
OWNER
NAME (2/ / .C17 .r/ G
OWNER 2 /j
ADDRESS 3b %7 w ,
TELEPHONE # (y/j )
DESIGN
ENGINEER\SANITARIAN
A,J I /5 5
FACILITY DESIGNED FOR
A.
Single or Multifamily dwelling
# Bedrooms Garbage Disposal yes
no
Total Design Flow `7 7 5- gallons per day
B.
Other(describe)
Design Basis
Total Design Flow
COMMENTS or PROBLEMS:
role
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gpd
MS TO NOTE:
Pipe diameter
Schedule of pipe
Watertight joints
V
BUILDING SEWER
7
Slope (min for 4" pipe is 0.01
or Y." per foot)
Invert elevation at building
Length
a. 5"
or 1/8"per foot; desired slope is 0.02
-z. a/ P
f� Alignment and grade
(manholes required at changes in both alignment and grade.)
Manhole(Must have metal frame and cover at grade)
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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=
Gas baffle on new construction
Septic tank detail provided
__,-1----Butyancy calculation(If necessary)
On 6" crushed stone
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DISTRIBUTION BOX
3 TO NOTE:
./ Inlet elevations 4%
Outlet elevations F6,58
(/Drop (inlet-outlet) �s /� /1/1---- Sump(6" minimum) Baffle or inlet tee 345
_4 ll outlets at same elevation ventilation
g,....----'"—M—anhole cover to grade # of outlets
M
�1 size of outlets(diameter) S 3 S
Distribution laterals: No. Size / Q
q era c44. /
Detail Provided (/
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•
1
LEACH FIELD
:o note:
Length a'7 ✓_ Width
Dime ion of field(s): Len g
umber of fields
Field separation_(10 ft. min)
(sq.ft.)
area provided for disposal /i
(lxwxno. offields) /� G WI././L
Gallons of treatment provided: W2 SG .A .. gr...
Bottom area x loading factor(from 15.242)_
________gal.
�U
(must be equal or greater than design flow)
Leaching area must be increased if garbage grinder is used.5 f ^ d ne
_ Elevation of bottom of the max. 96:y0 ' TAT/ �f
(must be 4 ft/or 5 ft above max. high groundwater depending on pert rate.)
Number of distribution pipes 7
Ty ✓'
Length(100'max.)
Slope (min. 0.005) yr'
Spacing(6' max.)�✓
t Depth of stone beneath pipe
(min 6")
Plan states stone is double washed
a�
:VC"cover of 1/8" to 'h" stone over pipe crown
e-Aggregate depth 6" minimum and 12" maximum
Depth of cover material above stone mm .9
fr.
sS. 90
No c
Construction of teaching facility --- %` /
Cis specified as TitleV on plan s J�l ��h /
ertification on fill sub* r 4 (•(
Finis specified for 5' around
entire system
Separation between Ones (6 ft maximum) (D
_ Separation between lines and edge of bed-four feet maximum.
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LEACHING TRENCHES
Number of trenches length (max.100')width_(min•24)
min)
Depth of stone beneath pipe ( "
Leaching area available
bottom=length x width x no.trenches = ft.
sides = length x depth (2'max)x w x# s of trenches 9
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.
ring 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 thaw for system
CHING AREA REQUIREMENTS SATISFIED? Yes_✓/,No
leaching area must be increased if garbage grinder is used)
5 feet separation
4 feet or
Ground water elevation: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 Y.")
_ The area between trenches shall be designated as reserve area only where
the separation distance between the excavation sidewalk 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
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PLAN REVIEW CHECKLIST(cont.)
Name of approving authority representative 4h ,✓
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
4 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
Pager 10 of 16
LEACHING CHAMBERS/PITS
IS TO NOTE
Manufacturer
Installation
Bed Formation
Number of beds of trenches Length
Width
Depth
dog area available:
in: (length x width x no.of pits)=
(2 x(length x depth (2'max.)+(2 x (width x depth (2'max)x# of pits.
leaching area available= sq. ft.__
THING AREA REQUIREMENTS:
leaching area(bottom+sides) x loading factor from 15.242
gals. This must be greater than or equal to the design
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 C12"to 48" of% "to 1 'A"stone)
2"cover of 1/8" to 'A" stone
4' separation between max. high GW and trench bottom? Yes_No
Pager I I of t6
PLAN REVIEW-SYSTEM SITING
rmed By Approval#
ssed By Date
don Address or Owner's Name,
[umber: Address and
Telephone No.
e Review
shed Soil Survey:
NO YES
Year Published Publication Scale Soil Map Unit
Drainage Class Soil Limitations
cial Geologic Report Available: No Yes_
Year Published Publication Scale
Geologic Material(Map Unit)
Landform
1 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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ad Ares:
National Wetland Inventory Map(map unit)
Wetlands Conservancy Program Map(map unit)
:lit Water Resource Conditions (USGS): Month
Range: Above Normal
•References Reviewed:
Normal Below Normal
num setback distances(where applicable) shall be shown on the plan for the proposed
sal facility(septic tank and soil absorption system.)
Soil Absorption
Septic Tank System(SAS)
' 10
Property line 10
Cellar waWinground
swimming pool 10 20
Slab Foundation 10 25
�er supply
pressure line 10 10
S urface waters
(except wetlands)
25 50
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Septic Tank
Bering vegetated
wetlands, salt marshes,
inland and coastal banks 25
SU ACE WATER SUPPLY
_Reservoirs and impoundments 400
Tributaries to SWS 200
_/ands bordering SWS or
tr' cries thereto
_Certified Vernal Pools
r vale water supply well
or suction line
LIC WATER SUPPLY WELL
Gravel packed
FdSular
rigation well
_Open,subsurface,or
surface drains which
discharge to SWS or
tributaries thereto
100
100
50
400
250
10
50
Pager 14 of 16
SAS
50
c%ehd
400
200
100 /rfe /fihe
1:14144.41 S'
100 ONGG/,d5
100
400
250
25
100
Septic Tank
Soil Absorption
System
Other open, surface or
subsurface drains (ex-
cluding foundation drains)
which intercept seasonal high 50
dwater 25
Other open,surface of
subsurface drains (cx-
,effiding foundation drains
$aching and catch
basins & drywells
Downhill slope
Ins Port(s)
agnetic Tape
Correct#of deep hole per code revision
5 10 •
10
N/A
: slope stabilization shall be provided (including
retaining walls) when an adjacent downhill slope
to a disposal facility is greater than 3:1.
Pager IS of 16
15' (min)to
top of
3:1 slope
EFFLUENT LOADING RATES
(gpolsq. ft./day)
£.RATE SOIL CLASS
din.) 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
ding criteria listed below apply only to the upgrade of existing systems pursuant
10 CMR 15.405 (1)(c)or systems constructed pursuant to 310 CMR 15.417
40 - - 0.25
60 - - 0.15
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