Decision 4568 - Septic System Designi
ACCESS COVER MUST BE INSPECTION
TO FINISH 68ADEI FIRST 2' TO PORT 9 -MIM COVER
ACCESS COVERS MUST BE WITHIN BE LEVEL 7 I-FOVER
/ILTER FABRIC
10.31 6' OF FINISH GRADE, 7Er7 1/ 2 MIN UNIT
NANTUCKET SOUND
LOCUS MAP
GENERAL NOTES:
1. THIS PLAN IS FOR THE DESIGN AND CONSTRUCTION
OF THE SEWAGE DISPOSAL SYSTEM ONLY.
2. VERTICAL DATUM IS NGVD. FOR BENCH MARKS
SET. SEE SITE PLAN.
J. ALL CONSTRUCTION METHODS AND MATERIALS AND
MAINTENANCE OF THE SEPTIC SYSTEM SHALL
CONFORM TO MASS. D.E.P. TITLE 5 AND LOCAL
BOARD OF HEALTH REGULATIONS.
4. ALL SEPTIC SYSTEM COMPONENTS LOCATED UNDER
AREAS SUBJECT TO VEHICULAR TRAFFIC OR GREATER
THAN J' IN DEPTH SHALL BE CAPABLE OF WITH-
STANDING H-20 WHEEL LOADS.
5. ALL SEWER PIPE SHALL BE SCHEDULE 40 PVC OR
APPROVED EQUAL.
6. SEPTIC TANK. PUMP CHAMBER AND D -BOX SHALL BE
REINFORCED PRECAST CONCRETE. WATERTIGHT AND
WATERPROOF. D -BOX SHALL BE WATER TESTED TO
CHECK FOR LEVEL WHEN THERE IS MORE THAN ONE
OUTLET.
7. BEFORE CONSTRUCTION CALL 'DIG -SAFE'.
1 -888 -DIG -SAFE AND THE LOCAL WATER DEPT.
FOR LOCATION OF UNDERGROUND UTILITIES.
8. SEPTIC SYSTEM INSTALLER SHALL NOTIFY THE
DESIGN ENGINEER TWO DAYS PRIOR TO CONSTRUCTION
OF THE SYSTEM TO ALLOW FOR SCHEDULING OF THE
CONSTRUCTION INSPECTIONS.
9. EXISTING CESSPOOL TO BE PUMPED DRY. REMOVED
AND BACKFILLED WITH SAND.
10. ALL UNSUITABLE MATERIAL (0. A/E 6 B HORIZONS)
ENCOUNTERED BELOW THE INVERT OF THE LEACHING
FACILITY TO BE REMOVED FOR A DISTANCE OF 5'
AROUND AND REPLACED WITH SAND IN ACCORDANCE
WITH TITLE 5.
PUMP SYSTEM NOTES:
1. PWVP TO BE MYERS RESIDENTIAL SEWAGE PUMP MODEL SRM4 4 PYC
OR EOUAL
2, THE PNVP SHALL START AND STOP AT THE ELEVATIONS SHOWN.
J. THE PUMP $HALL BE INSTALLED IN STRICT CONFORMANCE WITH
THE MANUFACTURER'S SPECIFICATIONS AND TITLE V REGULATIONS.
PUMP DISCHARGE SHALL BE 2 INCHES. PUMP SHOULD BE ABLE TO
BE DISCONNECTED AND LIFTED OUT OF THE PUMP CHAMBER WITHOUT
HAVING TO ENTER THE PUMP CHAMBER.
4. THE ALARM SHALL START AT THE ELEVATION SHOWN AND BE
POWERED BY A CIRCUIT SEPARATE FROM THE PIMP POWER.
S. AN ELECTRICAL PERMIT MUST BE OBTAINED FOR THIS INSTALLATION.
v
3 OUTLET
D -BOX
1500 CAL H-201000 GAL H-20
SEPTIC TANK PUMP CHAMBER
WATERTIGHT AND WATERTIGHT AND
FACTORY WATERPROOFED FACTORY WATERPROOFED
6' CRUSHED STONE OR
COMPACTED BASE
PROFILE:Nor TO SCALE
BOUYANCY CAL CUL A T I ONS :
SEPTIC TANK: DISPLACEMENT - (5.7-3.25) x 11 x 6.17 - 166 C.F.
166 C.F. x 62.4 •/C.F. - 10376+. H-20 TANK - 21230* OK
PUMP CHAMBER: DISPLACEMENT - (5.7-2.91 x 9 x 5.25 - I33 C.F.
!33 C.F. x 62.4 A'/C.F. - 8255A'. H-20 TANK - 14500+ OK
PEEP
EERLTRr FLOAT
HOLE
SW/TOSS
LYEG
INVERT OUT SEPTIC TANK:
VALVE
A""
-
PIMP ON
6- AN
PfAVI�
PIMP OFF
10.1
PUMP DETA / L :NOT To SCALE
USING 1000 GAL. PUMP CHAMBER
WATERTIGHT AND WATERPROOF
CLEAN SAND BACKFILL
AROUND AND 2' OVER CHAMBERS
4'VENT OR
CHARCOAL FILTER
F!8' MIN 40 MILL POLY
10.5 VAPOR BARRIER
s
!
UNDERLAP FILTER FABRIC 2' 8.5
9 CULTEC CONTACTOR FIELD "
DRAIN C -4'S IN BED FORMATION. 3 x 317-
l3'• x 24'1 x 3"d m ADJUSTED
GROUNDWATER. EL -4.7
OBSERVED
GROUNDWATER. £L-4.2
B1'18 'O0 •E-
- 66.00•
�� STpCKgOE FE'VCE-
6E-�DO� 6EDA 14-r
oqL,
/
Lhr41
*
ADO,
Lo
V J~`v
y�
2 9.0
64TH
/
o / S
y /
/
/ UP 160AP
/
CESSPOOL A. 1500 GALLON
n 9.0
SyED
SE TIC TAN
�P 24 OAK
LO To C
y � "
PLUMP
CHAMBE.
c-, j
PTL,�� FE 2
NCE
9.3
INVERT ELEVATIONS
HORIZON TEXTURE
INVERT AT BUILDING:
8.0
INVERT 1N SEPTIC TANK:
7.75
INVERT OUT SEPTIC TANK:
7.5
INVERT IN PUMP CHAMBER:
7.4
INVERT IN DIST. BOX:
10.27
INVERT OUT DIST. BOX:
10.1
INVERT IN LEACH CHAMBER:
9.95
BOTTOM OF LEACH CHAMBER:
9.7
ADJUSTED GROUND WATER:
4.7
OBSERVED GROUND WATER:
4.2
BOTTOM OF TEST HOLE 41: 2.7
INDEX WELL M/W 29. ZONE A
NOV l/ READING -7.9'. ADJ-1.5'
USE A 0.5' ADJUSTMENT FOR DESIGN
DESIGN CRITERIA:
DESIGN FLOW: 2 BEDROOMS. DESIGN FOR
3 BEDROOMS MIN AT /10 G.P.D. PER
BEDROOM EQUALS 330 G.P.D.
NO GARBAGE GRINDER
SEPTIC TANK REQUIRED:
330 G.P.D. X 2002 - 660 GAL.
SEPTIC TANK PROVIDED: 1500 GAL. MIN.
SOIL ABSORPTION SYSTEM REQUIRED:
DESIGN PERC RATE ( 5 MIN/INCH
SOIL TEXTURAL CLASS - I
EFFLUENT LOADING RATE - 0.74 GPD/SF
330 GPD / 0.74 GPD/SF - 446 S.F. REQUIRED
PROVIDED: 9 CULTEC CONTACTOR FIELD
DRAIN C -4'S IN BED FORMATION. 72 LF •
6.7 SF/LF-482 SF x 0.74 GPD/SF-357 GPD
N
SOIL TEST P I T DA TA s
INDICATES V INDICATES
PERCOLATION = OBSERVED
TEST GROUNDWATER
TP s!
O_
HORIZON TEXTURE
COLOR
9.7
4'
---------------------
9.4
AIE LOAMY
IOYR
SAND
3/3
l2"
---------------------
8.7
LOAMY
B
IOYR
U SAND
3/6
24
--------------------
7.7
C / MEDIUM
IOYR
SAND
5/8
46'
6G-
_
4.2
84"
2.7
I
lO. 362+ S.F. DATE: DECEMBER 1. 2011
_ TEST BY: STEPHEN HAAS
0 12"OAK WITNESSED BY: AMY VONHONE
si8-oarc 0 PERC RATE:" C 2 MIN/INCH
µO"PINE 20'PINE
UP NO WIRES 111tu
` (1
i A F OAK
4 9 CM TEC CONTACTOR/ P(Iy °� � ; ` 8 }
p TP -I FIELD DRAIN C-4'2 y.1 C��_r1 /7
v
C.
v f : . 5. SOIL R£NOVAL
/ (2 16 3A1 SEE NOTE !0.Gr /3 n ! 2yj ( Z
- p 'INE
l L -
A i R'OAK c n
\ "I W 2nIL
ISA - , p2 Qjt.
` f / ti
,/ yj� ,' BN. BRICK
STEP.. a-9 S E P T I CS YS TEM D E. S I ON
\ N f 1 m l EL -9 .98
14 -OAKS I I
8.4 40 MILL POLY I` i I94 7 SHANNON LOUR T. MAP 2S. PARCEL 3 / 8
q_ 1 VAPOR BAPRIER ---
STOCKADE FENCE 9
'V81_18 -Do -ft, SOUTH YARMOUTH. MA
l
66.00
' rr Ex�sTI PREPARED FOR
I DUEL, qVG
LEGEND L E O N A R D PRATT
uco CONCRETE BOUND 1 37 PACKARDV 1 LLE RD . PELHAM. MA 01002
PVC OUTLET -W- WATER L INE
O HYDRANT SCALE : I - 20 APR l L 30 . 20 1 2
-G- GAS LINE EAGLE SUFRVEY I NG I NC
- OHW- OVER HEAD WIRES
-0 LIGHT POST 923 Route 6A
E- UNDERGROUND ELECTRIC LINE �` Yormouthport, MA. 02675
-T- UNDERGROUND TELEPHONE LINE /�jij �!/� �<\ ( 508 ) 362-8132
- CTV- UNDERGROUND CABLEVISION LINE ����/ �\ ( 5 0 8) 4-32-5333
-1-40.4 SPOT ELEVATION
�40EXISTING CONTOUR
0 10 20 lqui PROPOSED CONTOUR JOB NO: 11-141 F1ELD: CFW/DTW CALC: SAH/CFW CHECK: CFW DRN: SAH