363 Plan Review 2015 PLAN REVIEW - SYSTEM COMPONENTS
Citv/Town Application No. O?U/6/1
Lot Number Address
OWNER
NAME
OWNER
ADDRESS
/rl( lc..N/L �l/l�✓
3G3 /,45 /L 7 L /Pi f/�c,o(
TELEPHONE# ( )
DESIGN
ENGINEER\SANITARIAN
Aler,(� /NNE S
FACILITY DESIGNED FOR Ale/
A. X Single or Multifamily dwelling
# Bedrooms / Garbage Disposal yes 3 d gar ,e).-44
2/� no /.
Total Design Flow 3✓V gallons per day
B.
Other (describe)
Design Basis 2
Total Design Flow 330 gpd
COMMENTS or PROBLEMS:
Pager I of 16
FILE COPY
ITEMS TQN'OTE:
Pipe diameter
Schedule of pipe
Watertight joints
BUILDING SEWER
P✓G
t OR Slope (min for 4"pipe is 0.01 or 1/8" per foot; desired slope is 0.02
or V4" per foot) c� r
Invert elevation at building
Length /0/T
tVAlignment and grade
(manholes required at changes in both alignment and grade.)
Manhole(Must have metal frame and cover at grade)
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ITEMNOTE:
Inlet elevations
Outlet elevations
mop (inlet- outlet)
Z/ mp (6" minimum)
All outlets at same elevation
Manhole cover to grade
!)
size of outlets (diameter) 7
Distribution laterals: No.
DISTRIBUTION BOX
' (7
Baffle or inlet tee
ventilation
q of outlets
Detail Provided
Size
t]
5= D. 97
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SEPTIC TANK
Tank size at least 200 % (�of design flow 3 � P d x )00 Y'//1�� h(minimum tank size is 1,500 gal) 6
v 2"- 3"drop from inlet to outlet
. / / ( d V V f/z wKl
Minimum 4' liquid depth
1/"/
Tees extend 6" above flow line
- Inlet tee 10" below flow line(minimum)
Air space(3"above tees,9" above flow line)
p
Depth of outlet tee(minimum 14")
�-_ Access manhole over center of tank and each tee
Number of compartments =
d' Gas baffle on new construction
l Septic tank detail provided
dif
Buoyancy calculation (if necessary) - ply ft
On 6" crushed stone V i"e
Pager 3 of 16
LEACH FIELD '
Items to note: L �/ y
X/(p
Dimension of field(s): Length , ?7 Width i/� / 6 8 eey
/ Number of fields Field separation (10 ft. min) /
Total area provided for disposal (sq. ft.) N
(1 x w x no. of fields)
3 3 0 (7,30i----72 i7S
VGallons of treatment provided:
Bottom area x loading factor(from 15.242)= gal.
(must be equal or greater than design flow)
Note: Leaching area must be increased if garbage grinder is used. tit///4"
Elevation of bottom of the field
(must be 4 ft/or 5 ft above max.high groundwater depen ing on perc rate.)
k PS = a7
Number of distribution pipes
TN pe
Length (100'max.)
Slope(min. 0.005)
Spacing(6' max.)
Depth of stone beneath pipe
(min 6")
Plan states stone is double washed
2" cover of 1/8" to %"stone over pipe crown
Ends capped
Aggregate depth 6" minimum and 12" maximum
Depth of cover material above stone(min.9")
Construction of leaching facility in fill? Yes No
Fill is specified as TitleV on plan
Certification on fill submitted
/j/4 �o Ger /,7,
Fill is specified for 5' around entire system
Separation between lines (6 ft maximum)
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)
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 flooww'for system
LEACHING AREA REQUIREMENTS SATISFIED? Yes , 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
Distribution lines exceeding 50 ft are vented.
_ 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:
` MASS. REG. SANITARIAN,or MASS. P.E. stamp and signature
v//SScale of 1"=40'for plot plan
G 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.
v�
All dwellings, buildings existing and proposed impervious areas
v L cation of all existing and proposed impervious areas
`Location and dimensions of the system including reserve area
1...-Design calculations: Sewage flow gpd
Septic tank size required gpd
" provided gpd
Z----North arrow, existing and proposed contours
/ - Location and log of deep hole observation test
of test
existing grade elevations for each test
Pager 7 of 16
PLAN REVIEW CHECKLIST (cont.)
e 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
-47 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:
vomplete design and specifications of the system
dosing chamber capacity; required , provided
__Ourtbber of dosing cycles,
_s,±lepih of cycles
Pager 8 of 16
PLAN REVIEW CHECKLIST (CON'T)
Recirculating Sand Filters
Complete plans and specification
_ hydraulic profile
location of the treatment works and nearest existing street
street and lot number
Pager 9 of 16
DOSING TANK
Dimensions L xW x D= Vol.
/ ,Number/ size of siphons
T/ m
_ Number and size of pumps (No. Capacity gP
///Discharge size
Manholes to grade
roundwater 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_
Y
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.
sq. ft._
Total leaching area available=
LEACHING AREA REQUIREMENTS:
Total leaching area(bottom+sides) x loading factor from 15.242
flow gals. This must be greater than or equal to the design
ow for the crease leaching area if garbage grinder is used.
Distribution Trenches: every 20 feet
Beds: area for pipe not to exceed
60 x 60 feet
Trenches: 2 x effective depth or width
Spacing Beds: 4 feet between excavation sidewalk.
r/ Manholes (min -one 20" access per unit; a 24"diam for>2,000 gal units)
Stone around chamber(12" to 48" of' " to 1 '/2" stone)
'/2" cover of 1/8" to '/" stone
VI/ 4' separation between max. high GW and trench bottom? Yes No
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PLAN REVIEW -SYSTEM SITING
Performed By:................................
............. Approval# .................
Date .....................
Witnessed By:.............................................
y:.............................................
Location Address or
Lot Number:
Owner's Name,
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
Pager 12 of 16
Wetland Area:
National Wetland inventory Map (map unit)
Wetlands Conservancy Program Map (map unit)
Current Water Resource Conditions (USGS): Month
Normal Below Normal
Range: Above 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)
10
Property line 10
/ Cellar walFinground 10 20
swimming pool
I Slab Foundation
10 25
! 'Water supply 10 10
pressure line
C/ Surface waters 25
(except wetlands)
Pager 13 of 16
50
Septic Tank
SAS
_Bordering vegetated
wetlands, salt marshes, 25
inland and coastal banks
50
SURFACE WATER SUPPLY
400
_Reservoirs and impoundments 400
//Tributaries to SWS
200 200
IV-Wetlands bordering SWS or 100 100
tributaries thereto
Certified Vernal Pools
100 100
d Private water supply well 50 100
or suction line
PUBLIC WATER SUPPLY WELL 400
rav4 packed
400
, LL 250 250
, ubular
10 25
irrigation well
Open,su urface, or
surface dr ins which
discharge t\SWS or
tributaries hereto
50
Pager 14 of 16
100
Septic Tank
Other open,surface or
subsurface drains (ex-
cluding foundation drains)
which intercept seasonal high
groundwater
Other open, surface of
subsurface drains (ex-
cluding foundation drains
Leaching and catch
basins& drywells
(/ Downhill slope
Inspection Port(s)
r� 31agnetic Tape
Correct#of deep hole per code revision
25
5
10
N/A
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
Soil Absorption
System
50
10
25
15' (min)to
top of
3:1 slope
EFFLUENT LOADING RATES
(gpd/sq.ft./day)
PERC.RATE SOIL CLASS
(minJin.) 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
0.60
10 0.37 15 0.56 0.
0.53 0.34
-
20 0.40 0.33
25 0.33 0.29
30
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
0.25
40
60
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0.15