HomeMy WebLinkAboutEngineer Plan96,70
FFjELD
ROAD
S .4E
99,37 ---
98 03
97.53 -'
erg•-�254'„�.+.
x 10 0. 16 1
x 99,60 / ,/10
100.73
( x FF
10C
p x
100.31
99,95
99.75 ___ax
0
EXISTING`/ / of
1 ' HOUSE(#33) `f o
8.74 T.O. F. =101. 9i*
0 1
cr ti
1 0.78
BENCHMARK S ❑/B DECK
T❑P/S❑N❑TUBE I N
EL.=100,78 o
EXISTING SEPTIC TANK
TOP OF TANK=99. 15 1 -+' 6
INV.(OUT)=97.8f O
98.86 x�
1012
PROPOSED S.A.S. 1 99198 27
2-500 GAL CHAMBERS x I
SURROUNDED WITH STONE 99.07 I
FENCE LINE
x 101,28
7 101.13
LOT 75
TP 10,100 SF
101,30
101,00'
-o-- SS 82 54' 15" W
EXISTING SAS
TO BE REMO QED
(SEE NOTE 11)
EXISTING CONTOUR
x 100.98
EXISTING SPOT GRADE
----UGW-----
UNDERGROUND WIRES
-- G -- - --
EXISTING GAS SERVICE
W-
EXISTING WATER SERVICE
TEST PIT
BENCHMARK
,
fM
IM
., ..-� #7
.......... _e,.,, 41 +1l
LOCUS MAP
GENERAL NOTES:
1. ALL CHANGES TO THIS PLAN MUST BE APPROVED BY THE LOCAL
BOARD OF HEALTH AND THE DESIGN ENGINEER.
2. ALL WORK AND MATERIALS SHALL CONFORM TO THE REQUIREMENTS
OF THE STATE ENVIRONMENTAL CODE, TITLE V, AND ANY APPLICABLE
v
LOCAL RUI. ES AND REGULATIONS.
N
SHALL NOT BE C PRIOR
3 E SEWAGE DISPOSAL
BY THE BOARD OF AND THKFILLED
HE
INS ECTONAND APPROVAL BY E
DESIGN ENGINEER.
4. ANY CONDITIONS ENCOUNTERED DURING CONSTRUCTION DIFFERING
FROM THOSE SHOWN HEREON SHALL BE REPORTED TO THE DESIGN
ENGINEER BEFORE CONSTRUCTION CONTINUES.
5. ALL ELEVATIONS BASED ON ASSUMED DATUM.
6. THE DESIGN ENGINEER IS NOT RESPONSIBLE FOR THE FAILURE OF
THE CONTRACTOR OR OWNER TO NOTIFY THE LOCAL BOARD OF
HEALTH FOR PROPER INSPECTIONS DURING CONSTRUCTION.
7. WATER SUPPLY PROVIDED BY TOWN WATER SERVICE.
N
�rnrl o a
8. THERE ARE NO WELLS WITHIN 100' OF THE PROPOSED S.A.S.
W
9. ALL AREAS CLEARED FOR CONSTRUCTION SHALL BE RESTORED AS
Q
AGREED UPON BY OWNER AND CONTRACTOR OR AS OTHERWISE
>1 N
DIRECTED BY THE APPROVING AUTHORITIES.
10, IT SHALL BE THE RESPONSIBILITY OF THE CONTRACTOR TO VERIFY
r
THE LOCATION OF ALL UNDERGROUND UTILITIES, PRIOR TO BEGINNING
.=
CONSTRUCTION.
11. WHERE REQUIRED, CONTRACTOR SHALL REMOVE ALL UNSUITABLE SOILS
IN THE AREA BENEATH AND FOR 5' ON ALL SIDES OF THE S.A.S. AND
REPLACE WITH CLEAN SAND AS SPECIFIED IN 310 CMR 255(3).
12. AREAS REQUIRING STRIPOUT OF UNSUITABLE MATERIALS SHALL BE
INSPECTED BY HEALTH DEPARTMENT PRIOR TO BACKFILL.
13. THIS PLAN IS TO BE USED FOR SEPTIC SYSTEM PURPOSES ONLY AND
Of Mgss9
IS NOT TO BE CONSIDERED A PROPERTY LINE SURVEY.
14. HOUSE LOCATION TAKEN FROM "AS -BUILT" PLOT PLAN, W. YARMOUTH,
PETER T.
MASS, LOT 75 PB 246 PG 142, DATED 1/24/07, BY SWEETZER
McENTEE
ENGINEERING, P.O. BOX 713, S. DENNIS, MA 02660
CIVIL N
MAP ID: 76-194
No..35109
PROPOSED SEPTIC SYSTEM UPGRADE PLAN
Ic1�
33 SHEFFIELD ROAD, WEST YARMOUTH, MA
Prepared for: Jharna Underwood, 33 Sheffield Road, W. Yarmouth, MA
OWNER OF RECORD
Engineering by: SCALE DRAWN JOB. NO.
TAMALSINA, KRISHNA
1"=20' P.T.M. 329-22
Engineering Works, Inc.
UNDERWOOD, JHARNA
33 SHEFFIELD ROAD
12 West Crossfield Road, Forestdale, MA 02644 DATE CHECKED SHEET NO,
W. YARMOUTH, MA 02673
(508) 477-5313 11 /3/22 P.T.M. 1 Of 2
EXISTING SEPTIC TANK
PROVIDE RISERS WITH COVERS OVER INLET &
OUTLET MANHOLES SET TO 6" OG FINISH GRADE
T.O.F.=101.9t
-F.G. EL.=100.5t F.G. EL.=100.7f
e
Rio 1
EXISTING n
ADD GAS
BAFFLE
EXISTING SEPTIC TANK
NOTES:
1) CONTRACTOR SHALL VERIFY ALL EXISTING PIPE
INVERTS, PRIOR TO INSTALLATION.
2) D-BOX SHALL BE SET LEVEL AND TRUE TO GRADE
ON A MECHANICALLY COMPACTED STABLE BASE OR
SIX INCH AGGREGATE BASE, AS SPECIFIED 310 CMR
5.221(2).
3) INSTALL. INLET & OUTLET TEES AS REQUIRED.
4) A GAS BAFFLE SHALL BE INSTALLED ON OUTLET TEE
AS MANUFACTURED BY TUF--TITE, ZABEL OR EQUAL.
PROPOSED D-BOX
INSTALL RISER & COVER
SET TO 6" OF GRADE
L = 5'
S=1% (MIN.)
4"SCH40 PVC
F.G. EL.=100.7t
L = 16'
c,-4S= 1 % (MIN.)
4"SCH40 PVC
NOTE: TO PREVENT BREAKOUT, THE PROPOSED
FINISH GRADE SHALL NOT BE < EL. 97.50
FOR A DISTANCE OF 15' AROUND THE
PERIMETER OF THE S.A.S.
PROPOSED S.A.S.
INSTALL RISER & COVER OVER ONE CHAMBER AND
SET TO 3" OF F.G. TO SERVE AS INSPECTION PORT
F.G. EL.=99.5-100.5f
MAINTAIN 2% SLOPE OVER S.A.S.
INV.=98.37-] PRROBTIVE OSED\-INV.=98.20 �5 4.8' 3`5'
NV.=98.76 EFFECWIDTH = 11.8'
INV.=97.00 --/
2-500 GALLON LEACHING CHAMBERS
SURROUNDED WITH STONE AS SHOWN
H-20 RATED
TOP CONC. ELEV.= 98.1 t
BREAKOUT ELEV.= 97.50
INV. ELEV.= 97.00
BOTTOM ELEV.= 95.00-
4' OF NATURALLY OCCURRING
PERVIOUS MATERIAL
5' ABOVE GROUNDWATER
NO GROUNDWATER, EL.=89.8 -
SEPTIC SYSTEM PROFILE
ld�3a H1Tr
DESIGN CRITERIA ZZOZ z AON
NUMBER OF BEDROOMS: 3
SOIL TEXTURAL CLASS: CLASS I (LOADING RATE=0.74 GPD/S.F.)
DESIGN PERCOLATION RATE: <2 MIN/IN
DAILY FLOW: 330 GPD
DESIGN FLOW: 330 GPD
GARBAGE GRINDER: NO -not allowed with design
LEACHING AREA REQUIRED: (330 GPD) = 445.9 S.F.
.74 GPD/S. F.
EXISTING SEPTIC TANK: 1000 GALLON CAPACITY
PROPOSED D-BOX: 1 INLET, 3 OUTLET (MINIMUM), H-20 RATED
USE 2-500 GALLON LEACHING CHAMBERS IN SERIES
SURROUNDED BY DOUBLE WASHED STONE ON ALL SIDES
SIDEWALL AREA: 2(1 1.8' + 27.0') x 2 = 155.2 S.F.
BOTTOM AREA: 11.8' x 27.0' = 318.6 S.F.
TOTAL AREA: .............................................................. 473.8 S.F.
DESIGN FLOW PROVIDED:0.74 GPD/S.F.(473.8 S.F.) = 350.6 GPD
-2" LAYER OF 1/8" TO 1/2"
DOUBLE WASHED STONE
(OR APPROVED FILTER FABRIC)
3/4" TO 1-1/2" DOUBLE
WASHED STONE
& 5' I 3'
EFFECTIVE LENGTH 27.0'
INSTALL PIPE
BETWEEN CHAMBERS
LEACHING SYSTEM SECTION
3/4' TO 1-1/2" DOUBLE
WASHED STONE
3" LAYER OF 1/8" TO 1/2"
DOUBLE WASHED STONE
(OR APPROVED FILIlFR FABRIC)
SOIL LOG
DATE: OCTOBER 20, 2022
SOIL EVALUATOR: ANNA WIMMER, SE-14615
WITNESS: JAY GARDINER HEALTH AGENT
ELEV. T P DEPTH
101.3 AP —— O,l
100.5
98.7
91.3
LOAMY SAND
10YR 2/2
B MED. SAND
10YR 5/6
C
MED. SAND
2.5Y 7/4
C2
FINE SAND
2.5Y 7/2
loll
31"
120"
89.8 - - 138"
PERC RATE <2 MIN/IN. ("C" HORIZON)
NO GROUNDWATER ENCOUNTERED
a
k. S.
AMBERS
ITH STONE
SEPTIC LAYOUT
® ® ® ® ® ® ® ® ® ® ® 37"
z ®
102"
4" KNOCKOUT
20"/DDIIA. COVER
4" KNOCKOUT0 4" KNOCKOUT
4" KNOCKOUT
500 GALLON CAPACITY, H-20 LOADING
CHAMBERS
58"
PROPOSED SEPTIC SYSTEM UPGRADE PLAN
33 SHEFFIELD ROAD, WEST YARMOUTH, MA
Prepared for: Jharna Underwood, 33 Sheffield Road, W. Yarmouth, MA
Engineering by: SCALE DRAWN JOB. NO.
Engineering Works, Inc. N.T.S. P.T.M. 329-22
12 West Crossfield Road, Forestdole, MA 02644 DATE CHECKED SHEET NO.
(508) 477-5313 11/3/22 P.T.M. 2 Of 2