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13OLT OVER MAIN DISCHARGE
HYDRANT 98 = 14.39 NGVD29
ALL LOTS WITHIN 100 FEET OF PROPOSED SEPTIC SYSTEM ARE ON TOWN WATER.
CONTACT R. J. CADILLAC .FOR CONSTRUCTION INSPECTION,
[PER 310 CMR 15.021 (3)]
1. AFTER EXCAVATING FOR LEACH AREA BEFORE PLACING STONE,
2. PRIOR TO BACKFILL.
12.
x /1 / 12.8
LOT 35 INSTALL H-10 1500 GALLON SEPTIC TANK & DB5 D -BOX, AS SHOWN.
12.7
x G
x A3 I � g �.
12.9615 *•
O / /`N b� lx 13.0 Iv /%
L® 3.1 I - .gyp �O
x_
�0 0J
12.6 aQ
3.0
/ �
� 12.31 1'2.-/7 12.1 x- -
72 12.3 12.8
k 11.8 �.
x 11.
k '11.9
S SSG► ; 11.8 --
fi
BENCH MARK -TOP NAIL @ EDGE
WALK = 12.66 NGVD29
MAXIMUM FEASIBLE COMPLIANCE APPROVAL REOESTED:
VARY THE 3.3' USGS ADJUSTEMENT
TO BE 0.6' (VARY 2.7').
LEGEND
TH 1 TEST HOLE LOCATION, NUMBER
-'--'-W--- WATER LINE MARKINGS
-'-G_ GAS LINE MARKINGS
x 12.2 EXISTING ELEVATIONS ('X' MARKS POINT)
EXISTING CONTOUR
/ --- PROPOSED CONTOUR
UTILITY POLE
LOT 33
x 1 gal p
12.4 12.'
12.6
12.6 (b k
3.1 `
H 2 11.8
ti/
x 12.0
12.3/
12.1
12.1 TH 1\ qp
.0
x 1 -
�,
12.0 12.2
1 ..9
12.2
INSTALL TWO 31.7' (31'-8') X 6.2' (6'-2") X 6" DEEP LEACH
AREAS. EACH TRENCH USES 4 CONTACTER 75 UNITS (ONE 75R
STARTER UNIT AND THREE 75E UNITS). USE 2' OF STONE ON
SIDES AND 3' OF STONE ON ENDS OF UNITS. REMOVE ANY
CONTAMINATED OR CLOGGED SOIL FROM OLD CESSPOOLS AND
LEACHING WHICH UNDERLIES PROPOSED LEACHING. OWNER REPORTS
LEACHING FIELD BETWEEN 2ND CESSPOOL AND SHED.
k
11.8 t 11.8
0'
11.7
MOVE FLAGPOLE
PUMP & FILL OLD CESSPOOLS
^ 11.7
iC)�� LOT 39
X1,1.8
BENCH MRK --TOP OF W0,'OD
STAK 12.23 NGVD29'
NOTES
1. LOCUS IS A.M. 19, PARCEL Y34.
2. ELEVATIONS SHOWN ARE NATIONAL
GEODETIC VERTICAL DATUM, 1929.
3. LOCUS IS IN FLOOD ZONE B ON
FLOOD INSURANCE RATE MAP
DATED JULY 2, 1992.
THIS PLAN IS A VALID COPY ONLY IF IT BEARS
AN ORIGINAL RED STAMP AND SIGNATURE.
SITE PLAN
FOR
JOHN TWOHIG & WILHELMINA GOMES
LOT 34, 102 SOUTH SEA AVE, W. YARMOUTH, MA
MAY 25, 1995 SCALE: 1"=20'
RONALD J. CADILLAC, PLS, RS
PROFESSIONAL LAND SURVEYOR & REGISTERED SANITARIAN
P.O. BOX 258
WEST YARMOUTH, IMA 02673
EALT AGENT APPROVAL DATE (508) 7759700
PAGE 1 OF 2 (OVER)
top found.
= 14.0±
SYSTEM
w <r: NOTE: RUN NEW PIPE BACK AT PROPOSED
:µ PITCH AND MEET THE EXISTING LINE.
O
PROFILE
SEE SITE PLAN FOR PROPOSED GRADES ABOVE SYSTEM
4" sch 40 pvc
PROPOSED GRADE = 13.3'
S=1/4"/ft. min. to Meet existing
4" sch 40 pvc
INVERT A 11 97+(22')
PROVIDE 6" OF COVER j iiTN
4' 0"
NOT TO SCALE
DIMENSIONS HOLD
BASED. UPON THE SOIL LOG A 5' REMOVAL IS
NOT .NEEDED. THE B LAYER (SUBSOIL) WAS -
PERCED 0 < 2 MIN./INCH. DURING INSTALLATION
IF THE A LAYER (TOPSOIL) GOES DEEPER THAN
THE PIPE INVERT, AND YOU DO NOT HAVE 6"
OF SUBSOIL ON ALL SIDES THEN A PARTIAL
5' REMOVAL IS NEEDED.
INSTALL PERFORATED SCH 35 OR 40 4" PIPE LEVEL FOR ENTIRE LENGTH
OF CONTACTORS, PER MANUFACTURERS SPECIFICATIONS FOR AN EVEN
DISTRIBUTUION OF EFFLUENT. PIPE IS SUSPENDED EVERY 6.25'. CAP END.
USE 2" MIN. OF DOUBLE WASHED 1/8" USE CLEAN DOUBLE WASHED
TO 1/2" PEASTONE ON TOP. 3/4" TO 1 1/2" STONE.
PROPOSED GRADE = 12.4'
4" sch 40 pvc
CONSTRUCTION. NOTES
CONTACT R.J. CADILLAC PRIOR
TO BACKFILL FOR INSPECTION.
[PER 310 CMR 15.021 (3)]
ALL CONSTRUCTION TO MEET
STATE SANITARY CODE AND
TOWN OF YARMOUTH BOARD
OF HEALTH REGULATIONS.
IF UNSUITABLE SOILS, OR SOILS
DIFFERING FROM THE SOIL LOG
ARE FOUND, CONTACT THE
BOARD OF HEALTH AND
R. J. CADILLAC,
BUILD UP COVERS TO WITHIN ONE
FOOT OF FINAL GRADE, AND
MORTOR IN PLACE, IF APPLICABLE.
� TOPSOIL
9" OF COVER0 TOP OF PEASTONE = 11.4
S= 1/8" per ft. 1,03' - - ^
INVERT 11.20 EFFECTIVE DEPTH
�7
INVERT B 12.30±(10') INVERT 11.67 5, 8,> I ERT 11.42 USE 2' OF STONE ON SIDES & 3' OF STONE
INVERT 10.90 ON ENDS FOR TWO 6.2' X 31.7' X 6" DEEP
existing LEACHING AREAS.
10' 6"
10'& 22' U�
S ,v.U�e72.5' 2' 5'& 30'
LEVEL
1500 GALLON H-10 SEPTIC TANK
SOIL EVALUATION LOG
TEST DATE:
May 11, 1995
PERFORMED BY:
Ron Cadillac, Soil Evaluator
WITNESSED BY:
Amy L. Von Hone, RS
PERC RATE:
< 2 min./in. (B layer)
SOIL SURVEY:
1993, Scale -1:25,000
CdA -Carver coarse sand
Excessively drained, poor filter
GEOLOGIC MAP:
1986, Scale -1:100,000
Harwich outwash plain deposit
FIRM:
Flood Zone B
WATER LEVEL (USGS):
April, Below normal
HIGH WATER TABLE:
88" TH 1, 90" TH 2
MIW29, zone B, April =3.3'
PERVIOUS MATERIAL:
Layers B, C1 & C2 = 7'total
a,
-
Ldct
.3
s
5
SOIL EI,V/ALUATOR
/
ATE
DESIGN DATA
BEDROOMS: 3
GARBAGE GRINDER: No
REQUIRED CAPACITY: 330 GPD
SEPTIC TANK SIZE: 1500 gallons
BOTTOM. LEACHING AREA: 393 SF
[2(6.2' X 31.7')]
SIDE LEACHING AREA: 75.8 SF
[4(6.2' + 31.7) 0.5 deep]
DESIGN CAPACITY: 346 GPD
[(393 SF + 75.8 SF) X .74 GPD/SF]
TEST HOLE 2
DEPTH (inches)
0 A layer 10yr 4/1
-
14"
B layer 7.5yr 5/6
loamy sand
C1 layer 10yr 6/6
coarse sand
C2 layer 10yr 7/3
coarse sand
90„ observed wat r
96"
TEST HOE 1
DEPTH (inches)
0
32"
45"
12"
U
N
Q
24"
88"
96"
A layer1Oyr 4/1
loa y sand
B la Zr 7.5yr 5/6
I amy sand
1 layer 1Oyr 6/6
coarse sand
C2 layer 10yr 7/3
coarse sand
observed water
ELEV.(feet)
12.2
11.0
9.5
4.7
4.2
ELEV.(feet)
12.1
10.1
4.8
4.1
25-8" LEVEL
8 � CO1TAC TOR 75'S
6' I \ 10.4 bottom
hichist observed water = 4.8'
[PER 310 CMR 15.021 (3)]
1. AFTER EXCAVATING FOR LEACH AREA ---BEFORE PLACING STONE.
2. PRIOR TO BACKFILL.
THIS PLAN IS VALID ONLY IF IT BEARS AN ORIGINAL STAMP AND SIGNATURE.
DETAIL. SHEET
FOR
JOHN TWOHIG & WVILHELMINA GOMES
AT
LOT 349 102 SOUTH SEA AVE, W. YARMOUTH, MA
MAY 25, 1993 SCALE: AS SHOWN
RONALD J. CADILLAC, PLS, RS
PROFESSIONAL LAND SURVEYOR & REGISTERED SANITARIAN
P.O. BOX 255, WEST YARMOUTH, MA 02673
(508) 775--9700 PAGE 2 OF 2 (OVER)