7 Plan Review 2017 A/7/i
(Z/0 /4-14) L Fs 5 PLAN REVIEW - SYSTEM COMPONENTS
City/TownX.//iGt.r///4.7 Application No. 0/ % I
Lot Number(leels )
Address
O
WNE
NAME R Gr. 4 /7'!�'i
OWNER
ADDRESS 7 �?LfiS L /..fet_i
TELEPHONE # ( ) / t..2( cceic.L'SS
a' des 4,4/J ori
DESIGN /
ENGINEERISANITARIAN
FACILITY DESIGNED FOR
A. Single or Multifamily dwelling
# Bedrooms 4 Garbage Disposal yes
no
Total Design Flow 4/4/0 gallons per day (ref u'cr cl)
ow" B. Other (describe)
rei Design Basis ///
l�
Total Design Flow 7(� gpd
G
loes
COMMENTS or PROBLEMS: Li L
i, L. L
Pager 1 of 16
BUILDING SEWER
ITEMS TO NOTE:
v 7 "
Pipe diameter
Schedule of pipe �(
V
Watertight joints
Slope (min for 4"pipe is 0.01 or 1/8"per foot; desired slope 's 0.02
or 'A"per foot) C�
Invert elevation at building / / / e Ki 54.7
Length 7 /
Alignment andg rade
(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) /,S/
2"-3" drop from inlet to outlet gyd5-
_ / Minimum 4' liquid depth
a ,
v Tees extend 6" above flow line /
U6.
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 = 2
Gas baffle on new construction
eptic tank detail provided
' /Buoyancy calculation (if necessary)
EZ -eS
v On 6" crushed stone
Pager 3 of 16
DISTRIBUTION BOX
ITEMS TO NOTE:
i
Inlet elevations 7 / 5
Q i
Outlet elevations
Drop (inlet- outlet) • a0
Sump (6"minimum) Baffle or inlet tee
All outlets at same elevation ventilation
Manhole cover to grade # of outlets
size of outlets (diameter)
Z//
Distribution laterals: No. Size y
Detail Provided
Pager 4 of 16
•
LEACH FIELD
Items to note:
frl imension of field(s): Length /� Width /V
✓ Number of fields 1 Field separation (10 ft. min)
Total area provided for disposal (sq. ft.)
(1 x w x no. of fields) ‘30
5 /1
Gallons of treatment provided: /' /-� s
. ./eBottom area x loading factor(from 15.242)__ �� gal. 4/5$2
(must be equal or greater than design flow) (5
Note: Leaching area must be increased if garbage grinder is used. 'j`(ptj
Elevation of bottom of the field 71, 7D / Trovid4
(must be 4 ft/or 5 ft above max.high groundwater depending P g on perc rate.)
Number of distribution pipes
i—Type S 3 5 ll
Length (100'max.) �� ' � ie/� Lf/s'/
Slope (min. 0.005)
Spacing(6' max.)
Depth of stone beneath pipe
(min 6")
Plan states stone is double washed OKE
2" cover of 1/8" to %"stone over pipe crown 7'
d Ends capped
Aggregate depth 6" minimum and 12"maximum
—_ cDepth of cover material above stone (min.9") 10-Ig
onstruction of leaching facility in fill? Yes No
X__
Fill is specified as TitleV on plan
Certification on fill submitted
Fill is specified for 5' around entire system
Separation between lines (6 ft maximum)
Separation between
P 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 P.'', 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
yDistribution lines exceeding 50 ft are vented.
v 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.
l/I�L�SS. REG. SANITARIAN, or MASS. P.E. stamp and signature
v Scale of 1"=40' for plot plan
[/Scale of I"=20' for system component details
y 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
�ocation 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
l/- Location and results of perc test
Z/ate of perc test
Location of water lines and other subsurface utilities on facility
9bserved groundwater elevation in vicinity of the system y%
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
which is not subject to dislocation or loss during conjunction of the facility
dosing system is proposed:
omplete design and specifications of the system
dosi i ! chamber capacity; required
.provided
number o . sing 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
Number an i size of pumps (No.
Capacity gpm
Discharge size
Manholes to grade
Groundwater elevati,n (min, 1 ft below inlet)
Pump controls
Alarm (on separate powe circuit)
Buoyancy calculations(if n• :I ed)
Pump system calculations
Pager 10of16
LEACHLNG CHAMBERS/PITS
ITEMS TO NOTE
Manufacturer
Installation
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 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 '/"stone
separation between max. high
g GW and trench bottom? Yes No
Pager 1.1 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: 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 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
Cellar wall/inground
imming pool 10 20
Slab Foundation 10 25
Water supply
pressure line 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 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' (mini) to
top of
3:1 slope
Inspection Port(s)
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
(gpd/sq. ft./day)
PERC.RATE SOIL CLASS
(min./in.) 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 listed below apply only to the upgradeparade 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