HomeMy WebLinkAboutErosion Control Measures & O&M Plan for Stormwater System - - 166 SALEM STREET E,0,
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NANCE .CLAN �'O�TTROL MEASURES: 0 EEAT.IONSZMAINTE ��',� ���,
ARC EROSION C �; � .
TEMP'OR
SAND TRAPS ARE TO BE tG 'i hr�
NT TRAPS SHALL BE INSTALLED AS REQUIRED. BARRIER '
1) SEDIMENT L ALL SLOPES HAVE A HEALTHY STAND OF GRASS. PHASE: - , l 1w,, YA� s'
MAINTAINED AND CLEANED UNTIL CONSTRUCTION
NOXIOUS PROJECT WILL BE THE RESPONSIBILITY OF THE PROPERTY OWNER,WHO
T-IE FjMP S ASSOCIATED WITH THIS P
MULCH SHALL BE MOWINGS OF ACCEPTABLE HERBACEOUS GROWTH, FREE FROM NOX
iPlILL BE RESPONSIBLE FOR INSPECTION, OPERATION AND MAINTENANCE.
} WEEDS OR WOODY STEMS, AND SHALL BE DRY. NO SALT HAY SHALL 8E USED.
ROOTS ETC. CONTRACTOR IS TO IN
AND MAINTAIN DRAINAGE FACILITIES AS SHOWN ON THE SITE PLANS BY
FILL MATERIAL SHALL BE FREE FROM STUMPS, WOOD. 1a! THE CO CONSULTANTS, INC.
MHF
3 DESIGN
STOCKPILED MATERIALS SHALL BE PLACED ONLY IN AREAS SHOWN ON f�PREVENT EROSION.
a) ON FENCE AND SEEDED 2 PRIOR TO CONSTRUCTION, ALL EROSION/SILT CONTROL DEVICES SHOWN ON ABOVE PLAN ARE TO BE
STOCKPILES SHALL BE PROTECTED BY SILTATION )
IL ALL MATERIAL HAS BEEN PLACED OR DISPOSED INSTALLED.TO PREVENT SILT INTRUSION INTO SURROUNDING AREAS DURING CONSTRUCTION.THE
ALL SLOPES WHICH MAY ERODE IN THE DIRECTION OF ANY o
THESE MEASURES SHALL REMAIN UNT CONTRACTOR IS TO SET SILT FENCING AT ;
OFF SITE. OPEN DRAINAGE FACILITIES OR ABUTTING PROPERTY. SUCH PREVENTIVE MEASURES ARE TO BE MAINTAINED
OF 4 INCHES'OF LOAM
DISTURBED AREAS SHALL BE LOAMED AND SEEDED. A MINIMUM SQUARE YARDS OF THROUGHOUT THE CONSTRUCTION PROCESS.
ALL DIS UND OF SEED PER 50 SQ
PO TILES IS TO 8E INSPECTED 8Y INSPECTORS`FROM THE TOWN OF
SHALL BE INSTALLED WITH NOT LESS THAN ONE 3 ALL CONSTRUCTION OF DRAINAGE FACILE 1
. ,
AREA. NORTH ANDOVER AND BY AN AUTHORIZED AGENT TO VERIFY CONFORMANCE TO THE DESIGN PLAN. !t}r „, ►,
AR
KENTUCKY BLUEGRASS, ON SHALL BE AS FOLLOWS:
fi)
SEED MIX SHALL 8E EQUAL PARTS OF RED FESCUE (CREEPING), �}' THf. SEQUENCE OF DRAINAGE CONSTRUCTION
REDTOP, PERENNIAL RYEGRASS.
BEEN STABILIZED THE TEMPORARY EROSION CONTROL A) CLEAR, GRUB, EXCAVATE AREAS FOR DETENTION �c INFILTRATION SYSTEMS. ,
LL DISTURBED AREAS HAVE
}. s f 51;1 tiT • F
7) AFTER A
MEASURES ARE TO BE REMOVED. B) INSTALL CATCH BASINS, PIPES AND MANHOLES. { ':� S �;; , tj h sr .
l, f.
VIDE MAINTAINED ON A DAILY BASIS. UPON DISCOVERY OF "` tr {;
D PARKING LOTS MUST BE KEPT CLEAN AT ALL TIMES. PRO EROSION CONTROLS ARE TO BE INSPECTED AND MAINTAI r •••., ss
WAYS AN 5 ANY OTHER STRUCTURE, CLEANING SHALL BE ,
B) PAVED ROAD ) '�
SWEEPING ON A DAILY BASIS OR AS DIRECTED BY THE CITY OF HOLYOKE. SILTATION BUILD—UP IN ANY CATCH BASIN SUMP DR rf .
PERFORMED.
=9) ALL CATCH BASIN INLETS WILL 8E PR
OTECTED WITH INLET PROTECTION — SEE DETAIL. ; "ti,
THE 6 ALL EXPOSED SOILS SHALL 8E IMMEDIATELY STABILIZED WITH A LAYER OF MULCH,HAY.
ED AS REQUIRED, BEFORE ) _
/D)ALL STORM DRAINAGE OUTLETS WILL BE STABILIZED AND CLEAN ==`1 `
POINTS BECOME OPERATIONAL. UPON INSTALLATION OF CATCH BASINS, INLET PROTECTION — AS DESCRIBED ON
AFOREMENTIONED PLAN t
DISCHARGE PO } `
SHALL BE INSTALLED AND.MAINTAINED UNTIL READY FOR PAVING.
RING OPERATIONS MUST DISCHARGE DIRECTLY INTO A SEDIMENT FILTER AREA.
;1)ALL DEWATE g PRIOR To CONSTRUCTION OF IMPERVIOUS AREA5.ALL DRAINAGE STRUCTURES AND PIPES SHALL CE
} STALLED AND INSPECTED FOR PROPER FUNCTION. DURING CONSTRUCTION OF OTHER SITE FEATURES, ALL
pp1AINAGE FACILITIES SHALL BE INSPECTED ON A DAILY BASIS AND CLEANED/REPAIRED IMMEDIATELY UPON O,�Y��RT TCmj�*T
DISCOVERY OF SEDIMENT BUILD—UP OR DAMAGE. C i�1 V 1 i�
g DETER PAVING IS INSTALLED, IT SHALL BE SWEPT CLEAN ON A MONTHLY BASIS. 1} INSTALL TEMPORARY SEDIMEM
)
LTT ON A WEEKLY BASIS FROM THE
2) CUT AND CLEAR TREES; CHIF
10) INSPECTIONS ARE TO BE PERFORMEDF ANDINNAL STABILIZATTION THE ON LOGS START OF CONSTRUCTION MEANS THE INITIAL
START OF CONSTRUCTION THROUGH 3) ANY BORROW FILL AND STRIF
DISTURBANCE OF SOILS ASSOCIATED WITH CONSTRUCTION. FINAL STABILIZATION MEANS ?09L VEGETATIVE WITHOUT COMPACTION, AND
�r. GROWTH FOR UNPAVED AREAS. EROSION.
INEATED WETLANDS PAST CONSTRUCTION PHASE: E OF ALL DRAINAGE STRUCTURES IN THE PROJECT— 4) CONSTRUCT PONDS AS NEC t
EDGE OF DEL CONSTRUCTION AS SHOW
WETLANDS PRESERVATION, TH'�OWNER.IS TO BE RESPONSIBLE FOR MAINTENANCE
BY WET INCLUDING DRAIN PIPES AND DRAINAGE SYSTEM,
n ��{;. I N MARCH 2010. S} THE WORK AREA SHl�ll BE
"GULAR MAINTENANCE IS TO INCLUDE THE FOLLOWING: A MANNER AS TO MINIMIZE S
R DAMAGE TO EXISTING VEGETAI
1) INSPECTION OF ALL DRAINAGE FACILITIES (CATCH BASINS AND MANHOLES} EVERY THREE MONTHS. DURING
, ,1I THE WORK AREA. SILT FENCE
THE FIRST YEAR OF OPERATION, ALL DRAINAGE FACILITIES SHOULD BE INSPECTED AFTER EVERY STORM, WILL BE NECESSARY TO ACC(
AND 2-3 DAYS AFTERWARD. OUR THESE INSPECTIONS,THE INSPECTOR AS DESIGNATED BY THE
r PROPERTY OWNER, SHALL LOOK FOR EVIDENCE OF THE FOLLOWING, STRUCTURAL DAMAGE, SILT
t ACCUMULATION (NEAR INLET INVERTS ON CATCH BASINS),AND IMPROPER FUNCTION. REPORTS SHALL BE 6) EXCAVATE SITE AND CONSTRU
° INSPECTION AND SUBMITTED TO THE CITY ENGINEER FOR COMPLIANCE FOR ONE (1) STABILIZED UPON COMPLETIOC,
FILED FOR EVERY NOTES. INSTALL POLYETHYLEN
YEAR AFTER THE ISSUANCE OF THE OCCUPANCY PERMIT OR UNTIL DEEMED NECESSARY BY THE CITY
ENGINEERS. 7) INSTALL ALL UNDERGROUND I.
THE
TIFY
-�
2) AFTER INSPECTION, IF ANY OFD LYARRANGEDFOIRNALL�NECESSARY REPAIRS AND SED THE INSPECTOR SHALL IMENT REMOVAL. g) INSTALL DRAINAGE STRUCTURE
INFILTRATION BASIN, EROSION
r' DEVELOPER,WHO SHALL IMM PARKING AREAS ARE PAVED. I
�, 3) PARKING AREAS ARE TO BE SWEPT CLEAN EVERY MONTH SPRING THROUGH FALL AND OTHERWISE AFTER THE BINDER COURSE,
► ���' � ' NEEDED (I.E.VISUALLY NOTICEABLE DEBRIS B ) SHALL BE PLACED AROUND G
4) THE CATCH BASINS PROTECT
DRAINAGE SYSTEM ARE TO BE INSPECTED EVERY THREE MONTHS. REMOVE OIL, INFILTRATION SYSTEM WITH OR
ION DURING CONSTRU
DEBRIS AND SEDIMENT AFTER INSPECTIO S.
AND
` SILT FENCE 5 ALL, GRADED SLOPES SHALL-BE INSPECTED EVERY SPRING FOR EROSION. UPON DISCOVERY OF ANY g) INSPECT AND MAINTAIN EROSIl
' PR AYHALES } FAILURE (I.E. EROSION) LOAM AND SEED SHALL BE PUT IN PLACE AND NURTURED. 0.5 OF RAINFALL.
STAKE H ER MONTHS, ALL SNOW IS TO BE STORED SUCH THAT SNOWMELT IS CONTROLLED. IN 10) DAILY, OR AS REQUIRED CON`.
�nP} g) DURING THE WINT SILTATION DEVICES SEDIMENT
THE EVENT THE AMOUNT OF SNOW EXCEEDS SUCH CAPACITY, IT 15 TO BE REMOVED OFF--SITE• THE
, MINIMUM AMOUNT OF DEICING CHEMICALS NEEDED IS TO BE USED,
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