HomeMy WebLinkAboutErosion & Sediment Control Plan (8.9.23)YARMOUTH,
STORMWATER MANAGEMENT NOTES
1.) THIS STORMWATER MANAGEMENT/ EROSION CONTROL PLAN IS ACCOMPANIED BY A STORMWATER MANAGEMENT REPORT AS WELL AS A
STORMWATER OPERATION & MAINTENANCE MANUAL. THE REPORT DESCRIBES THE PROPOSED STORMWATER SYSTEMS IN DETAIL AND
DOCUMENTS COMPLIANCE WITH MASS DEP AND TOWN OF YARMOUTH STORMWATER STANDARDS.
2.) PRE -DEVELOPMENT AND POST -DEVELOPMENT WATERSHED DELINEATIONS ARE SHOWN ON THE PLANS TITLED VA PRE -DEVELOPMENT WATER
SHAD PLAN' AND'C7.2 POST -DEVELOPMENT WATERSHED PLAN'. A COPY OF THE PLAN HAS ALSO BEEN INCLUDED WITH THE CONSERVATION
STORMWATER FILING.
3.) ADDITIONAL STORMWATER & EROSION CONTROL INFORMATION IS INCLUDED ON THE FOLLOWING PLANS WHICH WERE ALSO SUBMITTED AS
PART OF THE DEFINITIVE SUBDIVISION APPLICATION WITH THE PLANNING BOARD:'C1 EXISTING CONDITIONS PLAN','C2 SITE LAYOUT PLAN','C4
GRADING & DRAINAGE PLAN','C5 DETAILS & NOTES', &'C9 LANDSCAPE PLAN'. A COPY OF EACH OF THESE PLANS HAVE ALSO BEEN INCLUDED WITH
THE CONSERVATION STORMWATER FILING.
4.) SEE STORMWATER POLLUTION PREVENTION PLAN (SWPPP) DOCUMENT FOR CONSTRUCTION PERIOD STORMWATER CONTROLS AND
SPECIFICATIONS. CONTRACTOR SHALL REVIEW AND COMPLY WITH ALL MANAGEMENT PRACTICES DETAILED IN THE SWPPP THROUGHOUT THE
CONSTRUCTION PROCESS.
5.) ALL STORMWATER SYSTEMS HAVE BEEN DESIGNED TO REDUCE THE SITE -WIDE POST -DEVELOPMENT PEAK DISCHARGE RATE RELATIVE TO
PRE -DEVELOPMENT CONDITIONS. SEE STORMWATER MANAGEMENT REPORT FOR DOCUMENTATION.
6.) THE (2) MAIN STORMWATER COLLECTION SYSTEMS FOR FAITH ROAD AND MIRACLE WAY CONSIST OF CATCH BASIN / MANHOLE NETWORKS
PIPED PROPRIETARY PRE-TREATMENT UNITS, WHICH THEN OUTLET INTO DRY WATER QUALITY SWALES, WHICH THEN OUTLET INTO SUBSURFACE
LEACHING FACILITIES. THERE ARE ALSO (5) SECONDARY STORMWATER SYSTEMS WHICH SERVE DRIVEWAY AND LAWN AREAS THAT PITCH AWAY
FROM THE ROADWAY, CONSISTING OF DRY WATER QUALITY SWALES SIZED TO RETAIN ALL RUNOFF FLOW FROM THE 100 YEAR STORM EVENT. SEE
STORMWATER MANAGEMENT REPORT, AND'C4 GRADING & DRAINAGE PLAN' FOR FURTHER DETAILS.
7.) ALL ROOF RUNOFF SHALL BE CONTROLLED BY GUTTERS, DOWNSPOUTS AND DRYWELLS. DRYWELLS SHALL CONSIST OF A TOTAL OF (2) CULTEC
330XL RECHARGER UNITS AND SURROUNDING STONE FOR EACH DWELLING.
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POTENTIAL MATERIAL STOCKPILE AREA
SEE EROSION CONTROL NOTE 6
FILTER FABRIC SILT BARRIER
FOR EACH CATCH BASIN
SEE EROSION CONTROL NOTE 4
FILTER FABRIC SILT BARRIER
FOR EACH CATCH BASIN
SEE EROSION CONTROL NOTE 4
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EROSION CONTROL NOTES:
1.) LIMIT OF WORK SHALL BE MADE UP OF A 9" DIAMETER STRAW WATTLE INSTALLED PER THE MANUFACTURERS SPECIFICATIONS.
LIMIT OF WORK LOCATION SHOWN ON PLANS.
2.) CONTRACTOR SHALL BE RESPONSIBLE FOR PREVENTING EROSION/ RUNOFF DURING CONSTRUCTION.
3.) LIMIT OF WORK SHALL BE INSTALLED PRIOR TO START OF WORK, AND SHALL BE MAINTAINED IN PLACE FOR THE ENTIRETY OF
CONSTRUCTION ACTIVITIES ON SITE, UNTIL ALL DISTURBED AREAS HAVE BEEN REVEGETATED AND/OR STABILIZED.
4.) ALL PROPOSED CATCH BASIN RIMS SHALL HAVE FILTER FABRIC INSTALLED UNDER THE RIM AFTER INSTALLATION UNTIL
CONSTRUCTION ACTIVITIES ARE COMPLETE. FILTER FABRIC SHALL BE CLEANED OF ANY SEDIMENT AS NEEDED. SEDIMENT MUST BE
REMOVED FROM THE AREA OF THE STRAW WATTLE BARRIER IF IT HAS ACCUMULATED TO Y2 OF THE ABOVE GROUND HEIGHT.
5.) ALL PROPOSED STORMWATER SUBSURFACE LEACHING FACILITIES SHALL BE SURROUNDED BY STRAW WATTLES TO PROTECT THE
AREA FROM EROSION AND/OR SOIL ACCRETION UNTIL CONSTRUCTION ACTIVITIES ARE COMPLETE.
6.) MATERIAL STOCKPILES SHALL BE LOCATED WITHIN LIMIT OF WORK AND SHALL BE PHYSICALLY SEPARATED FROM CONTACT WITH
STORMWATER THROUGH THE USE OF STRAW WATTLES. STOCKPILES SHALL BE COVERED OR STABILIZED AS NECESSARY TO PROTECT
AGAINST EROSION AND DUST GENERATION. SEE PLAN FOR POTENTIAL STOCKPILE LOCATIONS.
7.) CONTRACTOR SHALL INSPECT THE LIMIT OF WORK DAILY AND IMMEDIATELY REPAIR ANY DAMAGED SECTIONS ON THE STRAW
WATTLE CONTRACTOR SHALL KEEP A MINIMUM OF 100' OF EXTRA STRAW WATTLE ON SITE TO ALLOW FOR QUICK REPAIR OF ANY
NOT TO SCALE
DAMAGED SECTIONS. PLAN BOOK 326 PAGE 22
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WETLAND = 45 SF±
UPLAND = 237 SF±\
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ROUTE 6A 1895 S.H.L.O PLAN, SHEET 8
DEED BOOK 2776 PAGE 322
ASSESSORS' MAP 125 PARCEL 39
LEGEND
EXISTING CONTOUR
32 PROPOSED CONTOUR
X12.34 EXISTING SPOT GRADE
24x5 PROPOSED SPOT GRADE
— W— WATER SERVICE LINE
—E— UNDERGROUND ELECTRIC SERVICE
IP
TEST HOLE / BORING LOCATION
ST SEPTIC TANK
DB DISTRIBUTION BOX
SAS SOIL ABSORPTION SYSTEM
Reserve RESERVED FOR FUTURE
Cob UTILITY POLE
FILTER FABRIC SILT BARRIER
® CATCH BASIN
FOR EACH CATCH BASIN
FIRE HYDRANT
SEE EROSION CONTROL NOTE 4
® DRAINAGE MANHOLE
CONSTRUCTION ENTRANCE
■ CONCRETE BOUND, FOUND
AGGREGATE APRON
—x—x— LIMIT OF WORK
P ed 50' x 20' x 6" (MINIMUM)
FENCE
rive SEE APRON DETAIL
GUARDRAILS
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SEE EROSION CONTROL NOTE 4
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/ SEE EROSION CONTROL NOTE 6
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THWATER EASEMENT
SQ s� so r�
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ZASEMENT
so' WIDE 1352°
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/ Edge Of IS DEP Wetlands Layeri `
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,III, AL
'I' ` APRON DETAIL
STRAW WATTLE/EROSION CONTROL DETAIL
NOT TO SCALE
Fill
3" Height
FLOW DIRECTION
�#2936C
Wood Stake
-Straw Wattle
Existing Grade
NOT TO SCALE
ROUTE 6A
30'
MIN. —
M
,I-- 20'
MIN.
ACCESS TO
CONSTRUCTION
SITE
EDGE OF PAVEMENT
AGGREGATE APRON SHALL BE
A MINIMUM 6" THICK LAYER
OF 1"-3" WASHED STONE.
STONE SHALL BE UNDERLAIN
BY FILTER FABRIC. MINIMUM
DIMENSIONS AS SHOWN.
200.21'
0 50 100 150
SCALE 1" = 50'
G:\AAJobs\THE DAVENPORT COMPANY -ROUTE 6A-YARMOUTHPORT\DWG\Erosion-Sediment Control Plan.dwg
THE DAVENPORT COMPANIES
20 NORTH MAIN STREET, YARMOUTH, MA
EROSION & SEDIMENT CONTROL PLAN
LOT 2- ROUTE 6A- YARMOUTH-PORT, MA
o� �� J.M. OTEILLY & ASSOCIATES, INC.
�OQ�� Professional Engineering & Land Surveying Services
1573 Main Street - Route 6A
P.O. Box 1773
(508)896-6601 Office Brewster, MA 02631 (508)896-6602 Fax
DATE: SCALE: BY: THCK: JOB NUMBER:
8/9/2023 As Noted RFRO JMO-8807