400 Plan Review 2015 PLAN REVIEW- SYSTEM COMPONENTS
City/Town 04.6- n�/4vi //////��Appliication No.ita /
Lot Number Address y// W.,445 4t...267 R7
OWNER
NAME
OWNER
ADDRESS
/P/,..) s
TELEPHONE# (9/3 ) 56Y- / ( f/
DESIGN
ENGINEER SANITARIAN
FACILITY DESIGNED FOR
A. '' Single or Multifamily dwelling
# Bedrooms Garbage Disposal yes_
// no \/
Total Design Flow 37 b gallons per da/ / /)
B. Other(describe) CG/✓/a I : 33V/3 itch0n5
Design Basis
3'/6
Total Design Flow
COMMENTS or PROBLEMS:
- 3145 - Di)
Pager 1 of 16
ITEMS TO NOTE:
I/ Pipe diameter
i Schedule of pipe
Watertight joints
BUILDING SEWER
/ r/
Slope (min for 4"pipe is 0.01 or 1/8"per foot; desired slope is 0.02
or ''A"per foot) ,0�ag
Invert elevation at building /77 5
Length 40(9/9
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)
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
/ Buoyancy calculation (if necessary)
On 6" crushed stone
Pager 3 of 16
DISTRIBUTION BOX
ITEMS TO NOTE: �,/
Inlet elevations / /y� 51//
Outlet elevations l yy, a 6
Drop (inlet- outlet) •30
Sump(6"minimum) Baffle or inlet tee /eVe17--'
All outlets at same elevation ventilation
Manhole cover to grade
it of outlets
size of outlets (diameter) P/ it
Distribution laterals: No. � Size
V
Detail Provided
Pager 4 of 16
Items to note:
fDimension of field(s): Length
Number of fields /
Total area provided for disposal
LEACH FIELD
Width /,
Field separation
y&'
(10 ft. min)
(sq. ft.)
(1 x w x no.of fields)
/6l FTZ
x , /*/=3y(/
'31/ / (PPt/irea�/i, ) yti//oHS/
Bottom area x loading factor(from 15.242)= /% gal. `7O4o'% / u /
(must be equal or greater than design flow) fr I/'/0
L �
Gallons of treatment provided:
Note: Leaching area must be increased if garbage grinder is used.
//Elevation of bottom of the field /71, 63
6 2
(must be 4 ft/or 5 ft above max. high groundwater depending on perc rate.)
Number of distribution pipes 3
Type `Pe
Length
(100'max.)
Slope (min. 0.005)
✓ Spacing(6' max.)
Depth of stone beneath pipe #
/ (min 6")
// states stone is double washed
35 +/--
/Da, e /
/eiq AA:/97.?6
6' eveA/v-/Jey/3
/2"cover of 1/8" to %" stone over pipe crown
,/Ends capped
Aggregate depth 6" minimum and 12"maximum
5/Depth of cover material above stone(min.9")
✓Eonstruction of leaching facility in fill? Yes
is specified as TitleV on plan
Certification on fill submitted
Fill is specified for 5' around entire system
oration between lines (6 ft maximum)
Separation between lines and edge of bed-four feet maximum.
6 ifer45415/ve
Pager 5 of 16
�// LEACHING TRENCHES
umber of trenches len 2° (max.100')width_(min.24)
epth of stone beneath pipe t( /
(6" min )a a
Leaching area available
bottom=length x width x no. trenches=
sides=length x depth (2'max)x w x#of trenches sq ft.
TOTAL= �/fj 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 d ,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.
V Trench spacing 3 x effective width or depth whichever is greater
d Trench width 4 ft maximum
,/ Pipe slope(min. 0.005 slope, or 6"per 100 feet)
✓ Beckfdl depth(min.of 9")
✓✓Ends capped
d Distribution lines exceeding 50 ft are vented. ,'T//
/Diameter of distribution pipe I("(min.3") ,36 r v v
y Distribution line orifice (min.3/8, max 3/4")
v 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
FM 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:
MASS.REG. SANITARIAN, or MASS. P.E. stamp and signature
I/kale of 1"=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.
VAll 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 (�
/ "provided r6h gpd / Q
v rth arrow, existing and proposed contours (X 27° %r 330 — ab D cy/
// Lora • n and log of deep hole observation test
%/ dat test
existing grade elevations for each test
Pager 7 of 16
PLAN REVIEW CHECKLIST(coat.)
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
Dimensions L x W x D=Vol.
DOSING TANK
Number/sin 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
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"diam for>2,000 gal units)
Stone around chamber C12"to 48"of''A " to 1 %"stone)
2"cover of 1/8"to %"stone
4' separation between max. high GW and trench bottom? Yes No
Pager 11 of t6
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
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
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 wall/inground
swimming 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 Venial 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
Septic Tank
Soil Absorption
System
Other open,surface or
subsurface drains(ex-
chiding 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.
Pager 15 of 16
EFFLUENT LOADING RATES
(gpd/sq. ft./day)
PERC.RATE SOIL CLASS
(min./in.) CLASS 1 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 (I) (c)or systems constructed pursuant to 310 CMR 15.417
40 - 0.25
60 - 0.15
Pager 16 of 16