414 Plan Review 2017 PLAN REVIEW- SYSTEM COMPONENTS
>?/
City/Town N '��CcJArt-ON Application No. 20,747
Lot Number I Address
OWNER K
�{ ,{ I •
NAME Mid lc.-t R€.,1 14)cl
ADDRESS 41 4 des NeL90YJ k)c>J
TELEPHONE#(4 )3 ) 5a7- 1*33
DESIGN //�� 1
ENGINEER\SANITARIAN Altai (A)e,55
FACILITY DESIGNED FOR
A. / Single or Multifamily dwelling
#Bedrooms Garbage Disposal yes
no X
Total Design Flow 330 gallons per day Cr erred
B. Other(describe)
Design Basis
FILE COPY Total Design Flow 318 gpd
COMMENTS or PROBLEMS:
Li
Pager 1 of 16 7/207/
w4S/J4
BUILDING SEWER
ITEMS TO NOTE:
✓ ti
Pipe diameter
Schedule of pipe 40 PVC
I/caterdght joints
VSlope(min for 4" pipe is 0.01 or 118" per foot; desired slope is 0.02
or 1/." per foot)
t// Invert elevation at building 95. 9 s/
V Length 12. 5
i/
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 (Ne w 1
(minimum tank size is 1,500 gal) JJJ
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= 2
Gas baffle on new construction
Septic tank detail provided
Buoyancy calculation (if necessary)
�On 6" crushed stone
=c,v 9o: 6 5
Dmf - 5540 f
. � 5
Pager 3 of 16
DISTRIBUTION BOX
ITEMS TO NOTE:
' r
Inlet elevations �Jr. t6
Outlet elevations 9.a, a 5
1✓ Drop (inlet- outlet) •20 r
"• /Sump (6" minimum) Baffle or Inlet tee
/// All outlets at same elevation ventilation
/y Manhole cover to grade #of outlets
�" size of outlets (diameter) i' is
Distribution laterals: No. a2 Size
(,�
1
✓ Detail Provided
Pager 4 of 16
LEACH FIELD
Items to note:
di
r Dimension of field(s): Length 451 Width /7
'/
Number of fields I Field separation (10 ft. min)
Total area provided for disposal a 3 O (sq. ft.)
(lxwx no. of fields)
/- • 1 `tc. x 1+5 =63o SF
L Gallons of treatment provided: • 630 SF X .CO 5a.VSr
Bottom area x loading factor (from 15.242)— I. V !!! _ 3-73
(must be equal or greater than design flow) /_PD
Note:Leaching area must be increased if garbage grinder is used. V
b Elevation of bottom of the field 91. 5
(must be 4 ft/or 5 ft above max.high groundwater depending on perc rate.)
Number of distribution pipes
s..--Type 5 1::61‘ 3 S qq �s f
✓ Length Slope
.TNS-j2.oCO ? PC
r/ Slope (min. 0.005) • ve$ I
✓ Spacing(6' max.) O
Depth of stone beneath pipe
(mm 6")
.41.---Plan states stone is double washed t/ 2.0
v2"cover of 1/8" to '/," stone over pipe crown V
e 0 a 57 .
✓ Ends capped
z...--Aggregate depth 6"minimum and 12"maximum Ftre
Depth of cover material above stone(min.9") 1 I
1...----Con cu of leaching facility in fill? Yes No x F'4.C4‘
is specified as Titley on plan
Certification on fill submitted
ill 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 I
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 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 increas if garbage grinder is used)
Ground water elevation: 5 feet separation
between trench bottom and ma I gb groundwater.
Trench spacing 3 x effective width or depth whichever Is greater
Trench width 4 ft maximum
r/'Pipe slope(min. 0.005 slope,or 6" per 100 feet)
✓Backfill depth (min. of 9")
6. Ends capped
_--Distribution lines exceeding 50 ft are vented.
i�tteter of distribution pipe_(min. 3")
s'DDistribution line orifice (min.3/8, max %")
The area between trenches shall be designated as reserve area only where
the separation distance between the excavation sidewalis 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
GENERA], INFORMATION
CHECK TO VERIFY THAT THE PLAN INCLUDES THE FOLLOWING REQUIRED
INFORMATION:
1/ MASS. REG. SANITARIAN,or MASS. P.E. stamp and signature
kale of 1"=40' for plot Scale of 1"=20' for system component details
vl,egal boundaries of the facility being served including easements
Mich could affect the impact the system installation/performance.
vyli dwellings, buildings existing and proposed impervious areas
bez oration 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
_f-.7.7
t/North arrow, existing and proposed contours
Location and log of deep hole observation test
date of test 6/a1/17
ting grade elevations for each test
Pager 7 of 16
PLAN REVIEW CHECKLIST (cont.)
Name of approving authority representative
Name & approval no. of soil evaluator
ae,----"Tocation 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
v/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:
c plete design and specifications of the system
dosing amber capacity; required ,provided
number of do ' g cycles,
depth of cycles
Pager 8 of 16
PLAN REVIEW CHECKLIST (CON'T)
Recirculatin and Filters
Complete ans and specifications
hydraulic pro
location of the treat ent works and nearest existing street
street and lot number
Pager 9 of 16
DOSING TANK
Di ensions L x Wan=Vol.
Numbe size of siphons
Number an• size of pumps (No.___, Capacity_gpm
Discharge size
Manholes to grade
Groundwater elevatlo (min. 1 ft below inlet)
Pump controls
Alarm (on separate power ci uit)
Buoyancy calculations (if neede
Pump system calculations
Pager 10 of 16
LEACHING CHAMBERS/PITS
ITEMS TO NOTE
Manufacturer
Installation
Bed Formation
Number of beds of trenches ength
idth
D th
Leaching area available:
bottom: (length x width x no. of pits)_
sides: (2 x(length x depth (2'max.)+(2 x (width depth (2'max) x# of pits.
Total leaching area available= sq. ft._
LEACHING AREA REQUIREMENTS:
Total leaching area (bottom+ sides)x loading factor om 15.242
gals. This must be greater than or equal to the design
flow for the system. Increase leaching area If garbage g inder is used.
Distribution Trenches: every 20 feet
Beds: area for pipe not to ex eed
60 x 60 feet
Spacing Trenches: 2 x effective depth or kith
Beds: 4 feet between excavation idewalls.
Manholes (min -one 20"access per unit; a 24"diam for 2,000 gal units)
___ Stone around chamber('12"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 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: 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 waWinground
swimming pool 10 20
/
Slab Foundation 10 25
Water supply
pressure line 10 10
Surface
(except wetlands) 25 S0
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
VV PUBLIC WATER SUPPLY WELL
5f- Gravel packed 400 400
(//Tubular 250 250
Irrigation well 10 25
L Open, subsurface, or
surface drains which
discharge to SWS or
tributaries thereto 50 100
Pager 14 of 16
Soil Absorption
Septic Tank System
__Other o ace or
subsurface drains(ex-
cluding foundation drains)
which intercept seasonal high
groundwater 25 50
Other open, surface of
subsurface drains (ex-
cl oundation drains 5 10
_Leachin catch -,
ba & drywells 10 25
Downhill slope N/A 15'(min) to
top of
3:1 slope
Inspection Port(s)
Magnetic Tape
_Correct tt 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 IS 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 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 I6 of 16