HomeMy WebLinkAboutEngineered Plan - 2018CONSTRUCTION NOTES
TOP OF FOUNDATION
PITCHING TO THE SOIL ABSORPTION SYSTEM. DISTRIBUTION BOX SHALL BE WATER TESTED TO
EL=50.0
1.) ALL WORK SHALL CONFORM TO THE STATE ENVIRONMENTAL CODE, TITLE 5 (310 CMR 15.000):
Map 99
STANDARD REQUIREMENTS FOR THE SITING, CONSTRUCTION, INSPECTION, UPGRADE, AND
EL=49.2±
EXPANSION OF ON-SITE SEWAGE TREATMENT AND DISPOSAL SYSTEMS AND FOR THE TRANSPORT
Parcel 84
AND DISPOSAL OF SEPTAGE, AND THE LOCAL BOARD OF HEALTH REGULATIONS.
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2.) ANY SEPTIC SYSTEM COMPONENT INSTALLED IN A LOCATION WHERE THERE IS POTENTIAL FOR
ANY PRIVATE UTILITY COMPANIES, AND THE LOCAL WATER DEPARTMENT.
VEHICLES OR HEAVY EQUIPMENT TO PASS OVER IT SHALL BE DESIGNED TO WITHSTAND AN H-20
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LOADING. IF UNDER AN IMPERVIOUS SURFACE, SYSTEM SHALL BE VENTED TO THE ATMOSPHERE,
16.) CONTRACTOR SHALL VERIFY
3.) TO MINIMIZE UNEVEN SETTLING, SEPTIC TANKS AND D -BOX SHALL BE INSTALLED ON A STABLE
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MECHANICALLY -COMPACTED BASE ON SIX INCHES OF CRUSHED STONE.
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4.) COVERS OVER THE INLET AND OUTLET TEES OF THE SEPTIC TANK, THE DISTRIBUTION BOX, AND
4
THE SOIL ABSORPTION SYSTEM SHALL BE RAISED TO WITHIN 6" OF FINAL GRADE. LEACHING
47.0
FIELDS, TRENCHES, AND OTHER SOIL ABSORPTION SYSTEMS WITHOUT ACCESS MANHOLES SHALL
47.5f o
HAVE AT LEAST ONE (1) INSPECTION PORT CONSISTING OF PERFORATED 4" PVC PIPE PLACED
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VERTICALLY TO THE BOTTOM OF THE SOIL ABSORPTION SYSTEM WITH A CAP, TIED WITH MAGNETIC
GAS BA
MARKING TAPE, ACCESSIBLE TO WITHIN 3" OF FINAL GRADE.
5.) PIPING SHALL CONSIST OF 4" SCHEDULE 40 PVC OR EQUIVALENT. PIPE SHALL BE LAID ON A
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MINIMUM CONTINUOUS GRADE OF NOT LESS THAN 2% FROM THE BUILDING TO THE SEPTIC TANK,
11'± -I
AND NOT LESS THAN 1% OTHERWISE.
EXISTING
AND THE APPROVED PLANS. 48 HOURS ADVANCE NOTICE IS REQUESTED. \
1,000 GALLON
6.) DISTRIBUTION LINES FOR THE SOIL ABSORPTION SYSTEM SHALL BE 4" DIAMETER- SCHEDULE 40
PVC (OR EQUIVALENT) LAID AT 0.005 FT/FT. UNLESS OTHERWISE NOTED. LINES SHALL BE CAPPED
SEPTIC TANK
AT END OR AS NOTED.
(TO REMAIN)
7.) LINES FROM THE DISTRIBUTION BOX TO BE LEVEL FOR THE FIRST TWO (2) FEET BEFORE
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PITCHING TO THE SOIL ABSORPTION SYSTEM. DISTRIBUTION BOX SHALL BE WATER TESTED TO
Elev.
ASSURE EVEN DISTRIBUTION.
Map 99
8.) GROUT TO BE USED AT ALL POINTS WHERE PIPES ENTER OR LEAVE ALL CONCRETE STRUCTURES
#92
IN ORDER TO PROVIDE A WATERTIGHT SEAL.
Parcel 84
9.) HEAVY EQUIPMENT SHALL NOT BE ALLOWED TO OPERATE OVER THE LIMITS OF THE SEWAGE
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DISPOSAL FIELD DURING THE COURSE OF CONSTRUCTION OF THE SYSTEM.
ANY PRIVATE UTILITY COMPANIES, AND THE LOCAL WATER DEPARTMENT.
10.) IN ACCORDANCE WITH 310 CMR 15.221, ALL SYSTEM COMPONENTS SHALL BE MARKED WITH
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MAGNETIC MARKING TAPE.
16.) CONTRACTOR SHALL VERIFY
THAT ALL WASTELINES ARE CONNECTED BY WATER TESTING
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11.) THERE ARE NO KNOWN WELLS WITHIN 150' OF THE PROPOSED SOIL ABSORPTION SYSTEM.
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12.) FROM THE DATE OF THE INSTALLATION OF THE SOIL ABSORPTION SYSTEM UNTIL RECEIPT OF
INSTALLATION OF ANY SEPTIC COMPONENTS.
THE CERTIFICATE OF COMPLIANCE, THE PERIMETER SHALL BE STAKED AND FLAGGED TO PREVENT
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USE OF THE AREA THAT MAY CAUSE DAMAGE TO THE SYSTEM.
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13.) THE DESIGNER WILL NOT BE RESPONSIBLE FOR THE SYSTEM AS DESIGNED UNLESS
Medium
CONSTRUCTED AS SHOWN ON PLAN. ANY CHANGES SHALL BE APPROVED IN WRITING BY THE
k4&7)
DESIGNER.
14.) THE BOARD OF HEALTH REQUIRES INSPECTION OF ALL CONSTRUCTION BY AN AGENT OF THE
/ ^\ (49.1) Garage
BOARD -OF -HEALTH- AND THE "DESIGNER -THE DESIGNER -SHALL -CERTIFY- IN -WRITING THAT THE-
HE
SEWAGE DISPOSAL SYSTEM WAS INSTALLED IN ACCORDANCE WITH THE TERMS OF THE PERMIT \
SEWAGE
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AND THE APPROVED PLANS. 48 HOURS ADVANCE NOTICE IS REQUESTED. \
/ /Grovel
MINIMUM 20" DIAMETER COVERS
RAISED TO WITHIN 6" OF FINISH
GRADE (OR AS NOTED)
48.2±
Proposed
Tee -�,
EL=49.5±
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45.5 _t
PROPOSED
VENT
GEOTEXTILE
FABRIC
I
5kreetYARMOUTH, MA
Fes Nal
7�1v
LOCUS
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v �
Jit( - -�.1 /
45.07 44.9 sU v Yv "JSITE LOCUS
46.8 �-- 3/4" to NOT TO SCALE
d N 44 7 - J cV 1-1/2" STONE
\ D13-3 (Double wash)
H-20 Rated THREE (3) H-20 500 GALLON PRECAST
D -BOX 42.7 CONCRETE LEACH CHAMBERS WITH 1' OF
6'± 3, STONE ON ENDS AND 1' ON SIDES
LEACH CHAMBERS 5.8
(END VIEW)
FLOW PROFILE
NOT TO SCALE EL=36.9 Bottom Test Hole
Lot 7011,
10,221± SE \
Deck
AC
15.) LOCATION OF UTILITIES IS APPROXIMATE AND CONTRACTOR SHALL BE RESPONSIBLE FOR
DETERMINING THE LOCATION OF ALL UNDERGROUND AND OVERHEAD UTILITIES PRIOR TO
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/ House
Elev.
\
/ Driveway
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#92
COMMENCEMENT OF ANY WORK.
THIS INCLUDES, BUT IS NOT LIMITED TO, REQUESTS TO DIGSAFE,
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2 Bedroom
ANY PRIVATE UTILITY COMPANIES, AND THE LOCAL WATER DEPARTMENT.
REQUIRED.
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TOF = 50.0
16.) CONTRACTOR SHALL VERIFY
THAT ALL WASTELINES ARE CONNECTED BY WATER TESTING
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(494)
WITHIN THE DWELLING PRIOR TO
INSTALLATION OF ANY SEPTIC COMPONENTS.
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(4 8.,-V) / / `7;po9
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TBM EL = 50.7
17.) CONTRACTOR SHALL VERIFY
EXISTING INVERT ELEVATIONS PRIOR TO INSTALLATION OF ANY
Medium
/ / zpg`oa Existing
Top Step
SEPTIC SYSTEM COMPONENTS.
\ / r�� 1,000 GoI
h
\ >> o� S_ Tank NO -
18.) TEST HOLES COMPLETED PER STATE ENVIRONMENTAL CODE, TITLE 5. SOILS CAN BE \ �\ 'o• (49.5) /
VARIABLE AND TEST HOLE DATA IS NO GUARANTEE OF SOIL CONDITIONS IN OTHER AREAS. IF \ �� SAS
SOILS DIFFER FROM THOSE SHOWN IN THE SOILS LOGS, DESIGN ENGINEER IS TO INSPECT THE \ O Test
S01 PRIOR TO PROCEEDING WITH INSTA ATION OF ANY SEPTIC COMPONENTS Pit
LS LL
Depth
Elev.
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19.) EXISTING SEPTIC COMPONENTS TO
BE LOCATED,
PUMPED DRY, FILLED WITH
CLEAN SAND AND
37
O,L��
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ETW`in�` j
ABANDONED IN PLACE OR REMOVED AS
REQUIRED.
AREA TO BE COMPACTED TO
MINIMIZE SETTLING.
O�
1OYR 3/1
Ook l ) O
Loamy
\
\\ 20-
42"-54"
44.9
B
Medium
10YR 5/1
Fine Sand
54"-150"
36.9
C
Medium
2.5Y 6/4
Fine Sand
Q
� G
See Note
\#19
Floor Plan
(48�
N.T.S.
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TEST
HOLE
LOGS
Test Hole #1 (EL=49.4±)
Depth
Elev.
Layer
Soil Class
Soil Color
Comments
0"-34"
46.6
Fill
34"-42"
45.9
A
Loamy Sand
1OYR 3/1
Loamy
42"-54"
44.9
B
Medium
10YR 5/1
Fine Sand
54"-150"
36.9
C
Medium
2.5Y 6/4
Fine Sand
DATE OF TESTING: 11/29/18
SOIL EVALUATOR: Dan Croteou
BOARD OF HEALTH AGENT: Amy von Hone
PERCOLATION RATE: LESS THAN 2 MIN/INCH (C Layer)
NO GROUNDWATER ENCOUNTERED
(49.6)
DB G
Ex�sUng �
'8- Pane
C
--� i i•
C
TBM EL = 50.0 \
(' Top Foundation
Proposed New
Gas Line O��
Location 1
(48.3)
Map 99
Parcel 80
00
Xari"nont!o Health Department
I? RVE
Map 99
Parcel 86
VARIANCES REQUESTED
Local Upgrade Approvals: 310 CMR 15.403
Variances: 310 CMR 15.221 (7) General Construction
Requirements for All System Components:
1.) Soil Absorption System > 36" Below Finish Grade
48" Held 12" Variance Requested
(Not to Exceed 72")
i
GRAPHIC SCALE
20 0 10 20 40 80
( IN FEET )
1 inch 20 ft.
Date
77>
1.) Assessor's Map 99 Parcel 85
2.) D684236
3.) L.C. Plan 31209-D Sht I1
4.) This property is in a Groundwater
Protection District
5.) This property is not in the Flood Zone.
A
DESIGN CALCULATIONS
SEWAGE DESIGN FLOW REQUIRED: 2 BEDROOM DWELLING @
110 GPD / BEDROOM = 220 GPD REQUIRED
SEWAGE DESIGN FLOW PROVIDED: THREE (3) H2O 500 GALLON LEACH CHAMBERS
WITH 1' STONE ON THE ENDS AND 1' STONE ON THE SIDES
[(2& -.O -x--6-.83) + -2(26.-0-+-`6.83) (2) x -.74228--GPD 228--GPD-PROVIDED-- - -- -
228 GPD PROVIDED > 220 GPD REQUIRED
SEPTIC TANK CAPACITY REQUIRED: 220 GPD X 200 = 440 GPD
SEPTIC TANK CAPACITY PROVIDED: 1,000 GALLON SEPTIC TANK '(EXISTING)
A GARBAGE DISPOSAL IS NOT PERMITTED WITH THIS DESIGN FLOW
-1 "/�" Note:
This plan is only valid for current regulations and may
not be suitable for future regulation changes that may occur.
Date: 11/30/18 1 Sheet 1 of 1 113y. MA