HomeMy WebLinkAboutEngineer PlanSEPTIC TANK
INSTALL RISERS & COVERS OVER INLET &
OUTLET AND SET TO 6" OF FINISH GRADE
T.O.F.=104.1 t
-F.G. EL. 9 8t /-F.G. EL.=97.4t
EXIS
L=4'
@ S=1% (MIN.)
4"SCH40 PVC
14'
EXISTING Q. LIQUID INV.=95.62t
LEVEL VERIFY
GAS BAFFLE
INV.=93.47
PROPOSED 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 SIX
INCH CRUSHED STONE BASE, AS SPECIFIED IN
310 CMR 15.221(2).
3) INSTALL INLET & OUTLET TEES AS REQUIRED.
4) GAS BAFFLE TO BE INSTALLED ON OUTLET TEE
AS MANUFACTURED BY TUF-TITE, ZABEL OR EQUAL.
GENERAL NOTES:
NOTE: TO PREVENT BREAKOUT, THE PROPOSED
FINISH GRADE SHALL NOT BE < EL: 93.5
FOR A DISTANCE OF 15' AROUND THE
PERIMETER OF THE S.A.S.
PROPOSED D-BOX PROPOSED S.A.S.
INSTALL RISER AND COVER INSTALL RISER & COVER OVER ONE CHAMBER(MIN.)
SET TO WITHIN 6" OF FINISH AND SET TO WITHIN 3" OF FINISH GRADE TO SERVE
GRADE AS AN INSPECTION MANHOLE.
/-F.G. EL. =97.Ot F.G. EL.=97.0t
CAA S=1% (MIN.)
4"SCH40 PVC 2" LAYIRR OF 1 /8"
® O ® TO 1 /2 DOUBLE
6 12 WASHED STONE
(OR APFAOVED FILTER F
PROPOSED '_ -//-
D-BOX INV.=93.30 3' 3' 3
EFFECTIVE WIDTH = 9' DOUBLE 1WASHED
y-90-RATED INV.=93.50 STONE
W/INLET TEE USE 6 LC-5 LEACHING CHAMBERS IN SERIES WITH
3' OF DOUBLE WASHED STONE ON ALL SIDES
H-20 RATED
TOP CONC. ELEV.=94.33 _- --- - BREAKOUT
INV. ELEV.=93.50 ®®®O ®®® ELEV.=94.0
BOTTOM ELEV.=92.50
3' 6x6'=36' 3'
4' OF NATURALLY OCCURRING PERVIOUS MATERIAL EFFECTIVE LENGTH = 42'
5' (MIN.) ABOVE G.W.
BOTTOM OF TP, EL=84.8 = LEACHING SYSTEM SECTION
SEPTIC SYSTEM PROFILE
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
LOCAL RULES AND REGULATIONS, EXCEPT AS REQUESTED BELOW:
-310 CMR 15.405(1)(b): LOCAL UPGRADE APPROVAL
1) A 3' variance to max. depth of cover for up to 6' of cover.
3. THE SEWAGE DISPOSAL SYSTEM SHALL NOT BE BACKFILLED PRIOR
TO INSPECTION AND APPROVAL BY THE BOARD OF HEALTH AND THE
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 AN 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.
8. THERE ARE NO WELLS WITHIN 150' OF THE PROPOSED S.A.S.
9. ALL AREAS CLEARED FOR CONSTRUCTION SHALL BE RESTORED AS
AGREED UPON BY OWNER AND CONTRACTOR OR AS OTHERWISE
DIRECTED BY THE APPROVING AUTHORITIES.
10. IT SHALL BE THE RESPONSIBILITY OF THE CONTRACTOR TO VERIFY
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 DESIGN ENGINEER PRIOR TO BACKFILL.
13. THIS PLAN IS TO BE USED FOR SEPTIC SYSTEM PURPOSES ONLY AND
NOT CONSIDERED TO BE A PROPERTY LINE SURVEY.
14. THE ENGINEER IS NOT RESPONSIBLE FOR ANY UNDOCUMENTED SEPTIC
SYSTEM COMPONENTS NOT SHOWN ON THE PLAN
DESIGN CRITERIA
NUMBER OF BEDROOMS: 3 BEDROOMS
SOIL TEXTURAL CLASS:
DESIGN PERCOLATION RATE: <2 MIN/IN
DAILY FLOW: 330 GPD
DESIGN FLOW: 330 GPD
GARBAGE GRINDER: NO -AND NOT PERMITTED WITH THIS DESIGN
LEACHING AREA REQUIRED: (330 GPD) = 445.9 SF
.74 GPD/SF
EXISTING SEPTIC TANK: 1000 GALLON CAPACITY, H-10 RATED
PROPOSED DISTRIBUTION BOX: 1 INLET, 3 OUTLETS, H-20 RATED
USE 6 LC-6 LEACHING CHAMBERS IN SERIES WITH
3' of DOUBLE WASHED STONE ON ALL SIDES
SIDEWALL AREA: (9.0' + 42.0') x 2 x 1' = 102.0 SF
BOTTOM AREA: 9.0' x 42.0' = 378.0 SF
TOTAL AREA: ........................................................... 480.Q,,'jF=
DESIGN FLOW PROVIDED: 0.74 GPD/SF(480.0 SF) �- 355.2 GPD
SOIL LOG
DATE: MARCH 30, 2023
SOIL EVALUATOR: ANNA WIMMER SE#14,615
WITNESS: JAY GARDNER IRS HEALTH AGENT
ELEV. TP-1 DEPTH
96.8 0"
FILL
94.4
Ab
SANDY LOAM
10YR 3/2
93.6
6
MED. SAND
10YR 5/4
91.8
C1
MED. SAND
2.5Y 7/4
87.8
C1
FINE SAND
2.5Y 6/4
84.8
PER�CR-ATETFI��IA1,_$c
C.-- NO GROUNDWATER
ENC
r S-L-----
4" KNOCKOUT
2W DIA. COVER
I i
4" KNOCKOUT 4" KNOCKOUT
I I
I I
4' KNOCKOUT
-7-----------J
29"
39"
60"
108"
144"
"C" HORIZONS
M
f 72• `l
PLAN VIEW
r-------
® ® ® 0 ® ® ® 2 2
INVERT I
1z" I i
72"
SIDE VIEW
WIGGIN LC-6, H-20 LOADING
LEACHING CHAMBER
N.T.S.
PROPOSED SEPTIC SYSTEM UPGRADE PLAN
382 NORTH MAIN STREET, SOUTH YARMOUTH, MA
Prepared for: Francis Clarke, 382 North Main St, South Yarmouth, MA 02664
Engineering by: SCALE DRAWN JOB. NO.
Engineering Works, Inc. N.T.S. P.T.M. 141-23
12 West Crossfield Road, Forestdale, MA 02644 DATE CHECKED SHEET NO.
(508) 477-5313 4/5/23 P.T.M. 2 Of 2
--64-- EXISTING CONTOUR
x 60.98
EXISTING SPOT GRADE
—W—
EXISTING WATER SVC.
—
EXISTING GAS SERVICE
—� -
OVERHEAD WIRES
IS
TEST PIT
BENCHMARK
LEGEND
LCP 30101 C
94,78 `�S` 00'52'50" E
100.04'
M.
97.64
EXISTING LEACH PIT
TO BE PUMPED, FILLED
WITH SAND & ABANDONED
o
99,5 4N
EXISTING SEPTIC TANK
TOP OF TANK, EL.=95.97
IN V. (OUT)= 95.62f
1'
96.19 vi
VENT.
GREEN
TENT HOUSE 96.72
.. ,t .
97,13 42�r" P.... O
x ��" O _J
011 .:ARMM
DECK
TIO
e mY E
7.6 MC6*4en=_'
c H-y
Thompson e5ue .n
House Cape Cod
�o-ate"
PROPOSED S.A.S.
6 LC-6 UNITS SURROUNDED
WITH 3' OF STONE, ALL SIDES
l JJ
ypJ X 9 E
9PEN
9758 0
+/
1 EXISTING
HOUSE(#382)
T.O.F.=104.1t1
98.44 1+ 00.
! 00
10L37 101.48
LOT 51 02.26
1,175±-�5. F.
COMBINED AREA
12, 615±S. F. __.o
SMAP
LE
BENCHMARK
TOP OF SONOTUBE
EL. = 97.40
�02,23
32'
,102 59 • i° . �
b.UU —
N 00 43'10" E ..~ ►4"�'43'10" E 99,59
.STONE PARKING AREA APRON
100.26 99.86 99,57� ® 99.01 98.34
of M4ss9�y�
o PETER T.
McENTEE
CIVIL
35109
NORTH MAIN STREET
IT
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OWNER OF RECORD
FRANCIS H. CLARKE
382 NORTH MAIN STREET
SOUTH YARMOUTH, MA 02664
Yarmouth Health Department
APPROVED
name Date
PLAN REFERENCE
CERTIFIED PLOT PLAN BY BAXTER & NYE, DATED 9/8/76
MAP ID: 100-144
PROPOSED SEPTIC SYSTEM UPGRADE PLAN
382 NORTH MAIN STREET, SOUTH YARMOUTH, MA
Prepared for: Francis Clarke, 382 North Main St, South Yarmouth, MA 02664
Engineering by: SCALE DRAWN JOB. NO.
Engineering Works, Inc. 1 "=20' P.T.M. 141-23
12 West Crossfield Road, Forestdole, MA 02644 DATE CHECKED SHEET NO.
(508) 477-5313 4/5/23 P.T.M. 1 Of 2