97 Plan Review 2015 City/Town
Lot Number
OWNER
NAME
PLAN REVIEW - SYSTEM COMPONENTS
Adi-air An;
OWNER
ADDRESS
-77," -A-
Address
Application No. pC/.. _ �2
TELEPHONE# ( )
DESIGN
ENGINEER\SANITARIAN
FACILITY DESIGNED FOR
A. )(Single or Multifamily dwelling
#Bedrooms Garbage Disposal yes
l//
no
Total Design Flow 77 D gallons per day(ep tinted
B.
Other(describe) //���� //11�� / / /
Design Basis L5Y f - d..c/c tZ dy AcC>, 4
Total Design Flow ` IH 7 gpd
/
61✓ cA 9
COMMENTS or PROBLEMS:
Pager 1 of 16
ITEMS TO NOTE:
/
// Pipe diameter
BUILDING SEWER
"
v Schedule of pipe 'f D
Watertight joints
Slope(min for 4" pipe is 0.01 or 1/8"per foot; desired slope is 0.02
or %."per foot)
Invert elevation at building 97. O
/Length N„
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
V
SEPTIC TANK
Tank size at least 200 % of design flow
'eKiJl itil� �4W 4 /
P✓m�O cr✓/s�, 41/
(minimum tank size is 1,500 gal) 975
2"-3"drop from inlet to outlet
972
Minimum 4' liquid depth 3
a.
Tees extend 6" above flow line
Inlet tee 10"below flow line (minimum)
J/ Air space (3"above tees, 9"above flow line)
Depth of outlet tee(minimum 14")
Access manhole over center of tank and each tee
b/ Number of compartments=
✓ Gas baffle on new construction
Septic tank detail provided
Di Buoyancy calculation (if necessary)
i/ one crushed stone
Zvek/ / O;w/ s99/;
Pager 3 of 16
DISTRIBUTION BOX
ITEMS TO NOTE:
v Inlet elevations f,7/.0 p
_._ Outlet elevations 91/
Drop (inlet-outlet)
L/ Sump (6" minimum) Baffle or inlet tee
Z. All outlets at same elevation ventilation //
t/ Manhole cover to grade # of outlets '7
t/ t/
size of outlets (diameter) y�
/ Distribution laterals: No. Size /lr
7
t/ Detail Provided
Pager 4 of 16
LEACH FIELD
Items to note:
Dimension of field(s): Length Width
Number of fields Field separation (10 ft. min)
Total area provided for disposal
(1 x w x no. of fields)
(sq. ft.)
Gallons 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.
Elevation of bottom of the field
(must be 4 ft/or 5 ft above max. high groundwater depending on perc rate.)
Number of distribution pipes
Type
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
Fill 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 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_,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 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
Fill is specified for 5" around entire system
Pager 6 of 16
PLAN REVIEW CHECKLIST
4ERAL INFORMATION
ECK TO VERIFY THAT THE PLAN INCLUDES THE FOLLOWING REQUIRED
'ORMATION:
MASS. REG. SANITARIAN,or_—MASS. P.E. stamp and signature
Scale 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.
All dwellings,buildings existing and proposed impervious areas
Location of all existing and proposed impervious areas
Location and dimensions of the system including reserve area
d
Design calculations: Sewage flow gpd
tank size required d
., .. " 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
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 conjunction of the facility
which is not subject to dislocation or loss during J
_ If dosing system is proposed:
complete design and specifications of the system
rovided
dosing chamber capacity; required p
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
DOSING TANK
Dimensions Lx W z D=Vol.
Number/size of siphons
_ m
Number and size of pumps (No._�Capaci ty gP
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
S TO NOTE
/as
Manufacturer —. Y'
Installation
Bed Formation
Number of beds of trenches
LEACHING CHAMBERS/PITS
Length 342,
Width_al--
Depth
thing area available:
gel co.)/ ..../4.444) pits.
om: (length x widthth no.max.)+(2 x(width x de (2'max)x# of p'
s: (2 x(length x depth (2'max.)+
/q' L
6RSc0 A14204,
$/Z C
at leaching area available=
�p0 sq.
Nei" y ft._
i7,.. qy 71,4/4,
4,
ACHING AREA REQUIREMENTS:
tal leaching area(bottom+sides) x loading factor from 15.242
gals. This must be greater than or equal to the design
rinder is used.
m for the crease leaching area if garbage g
Distribution Trenches: every 20 feet
Beds: area for pipe not to exceed
60 x 60 feet
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)
L Stone around chamber(12" to 48" of'/. " to 1 '/" stone)
l/ 2" cover of I/8" to Vi" stone
4' separation between max. high GW and trench bottom? Yes
Spacing
Pager 11 of 16
No
PLAN REVIEW- SYSTEM SITING
:med By:.............................................
y:............................................. Approval N .................
Date .....................
.ssed By:................
Owner's Name,
tion Address or Address and
lumber: Telephone No.
:e Review
fished Soil Survey: Unit
Published ............Publication Scale...........Soil Map ..........
...nit nit ......'....
Drainage Class ............ Soil Lin ltations ....................................
...............
facial Geologic Report Available: No Yes
Year Published ............ Publication Scale .....................•.
Geologic Material(Map Unit) ....
Landform ...........................
iod Insurance Rate Map:
Above 500 year flood boundary No Yes—
Within 500 year boundary
No Yes
100 year flood boundary No _ Yes
NO _ YES
Pager 12 of 16
d Area:
National Wetland Inventory Map (map unit)
Wetlands Conservancy Program Map (map unit)
nt Water Resource Conditions(USGS): Month
Normal Below Normal
Range: Above Normal
•References Reviewed:
mum 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)
7roperty line
10 10
ZBar waNinground 10 20
swimming pool
Slab Foundation
10 25
/ter supply 70 10
pressure line
Surface waters 25
(except wetlands)
Pager 13 of 16
50
Septic Tank
Bordering vegetated
wetlands,salt marshes, 25
inland and coastal banks
SAS
50
SURFACE WATER SUPPLY
- 400
/eservoirs and impoundments 400
200
nbutaries to SWS
7.
200
Wetlands bordering SWS or 100 100
r
butaries thereto 100
Certified Vernal Pools
100
Private water supply well 50 100
or suction line
ATER SUPPLY WELL 400
el packed
400
2
250 250
ar
10 25
rigation well
Open,subsurface,or
surface drains which 100
discharge to SWS or 50
tributaries thereto
Pager 14 of 16
)ther open, surface or
subsurface drains (ex-
:hiding foundation drains)
which intercept seasonal high
groundwater
Other open,surface of
subsurface drains (ex-
cluding foundation drains
Leaching and catch
basins & drywelis
Downhill slope
Inspection Port(s)
Magnetic Tape
Septic Tank
25
Correct#of deep hole per code revision
5
10
N/A
ote: 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
t0
25
15' (min)to
top of
3:1 slope
EFFLUENT LOADING RATES
(gpd/sq.ft./day)
RC.RATE SOIL CLASS
nJin.) CLASS I CLASS R 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 -
15 0.56 0.37
0.53 0.34
20 0.40 0.33
25 033 0.29
30 ursuant
oading criteria listed below apply only to the upgrade of existing systems p
1 310 CMR 15.405 (1)(c) or systems constructed pursuant to 310 CMR 15.417
40
0.25
0.15
60
Pager 16 of 16