HomeMy WebLinkAbout9 HAWKINS LN._NORTH ANDOVER-EROSION5A - Plans - 0 HAWKINS LANE 1/17/2023 NOTES
o� 1.SEE TOWN OF NORTH ANDOVER ASSESSORS MAP 106C LOT 18 AND DEED BOOK 3933
3'Ns PAGE 60 E.N.D.R.D.FOR SITE.
Y 2.BENCHMARK IS"X"ON TOP OF ELECTRICAL TRANSFORMER EL.=110 L..60 USGS M.S. N.G.V.D.
3.SEE PLAN OF SUBSURFACE SEWER DISPOSAL SYSTEM PREPARED BY MERRIMACK ENGINEERING
SERVICES DATED 7-7-22 LAST REVISED I0-7-22 FOR DETAILS AND SPECIFICATIONS OF
ep SEPTIC SYSTEM CONSTRUCTION_
`yam 4_WETLANDS DELINEATED BY NORSE ENVIRONMENTAL SERVICES,TYNGSBORO,MA.JUNE 2022"A"
SEPTIC SYSTEM CONSTRUCTION_
SITE 5_RIVERFRONT ZONE DELINEATED BY NORSE ENVIRONMENTAL SERVICES NOVEMBER 2022"B"
CONSTRUCTION NOTES
1.EROSION CONTROL SILT FENCE MULCH WATTLE SHALL BE INSTALLED AND INSPECTED BY THE
NACC PRIOR TO ANY WORK ON SITE
.
LOCUS PW _ 2,THE EROSION CONTROL BARRIER SHALL BE INSPECTED AND MAINTAINED THROUGHOUT
NTS GO AND UNTIL SITE STABILIZATION OCCURS.
,0pNP 3.ANY SOILS IMPORTED OR EXPORTED SHALL BE STOCKPILED AS SHOWN BY END OF EACH WORK DAY
NO DEWATERING IS EXPECTED.IF DEWATERING IS REQUIRED.THE PUMP DISCHARGE SHALL BE
EORG 039'T9'(GP DIRECTED THROUGH A DIRT BAG DEWATERING BAG SIZE 8 X 10'AVAILABLE AT PROP ENVIRONMENTAL
N E G 60R LOT 5 (SEE DETAIL)
AB"t, "— e F.t 38y 53 5.ALL DISTURBED AREAS SHALL BE LOADED AND SEEDED IMMEDIATELY UPON COMPLETION
-3.70 A OF THE WORK.
s
6.AREA OF THE LOT WITHIN THE 200 FOOT RIVERFRONT ZONE IS 145,073 S.F.
7.PROPOSED AREA OF DISTURBANCE WITHIN THE CDC FOOT RIVERFRONT ZONE IS 5,362 S.F.
�$- - — 8.PERCENTAGE OF RIVERFRONT ZONE PROPOSED TO BE DISTURBED IS 3,70%
DISHUMBANCE ANUe 9.ALLOWABLE DISTURBANCE WITHIN THE RIVERFRONT ZONE(10%)IS 14,507 S.F.
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- DATE' OCTOBER 7,222 0 REVISED: JANUARY 17,2023
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WF c0mMOOEEU_7H OF m PLAN TRo FOE THE D5 ALSO°oM scoTT, 'LTIa MERRIMACK ENGINEERING SERVICES
/ PARK STREET TZ scAtE o g I ANDOER,MASSACHUSETTS 91610
PHONE (978)475-3555 FAX: (976)475-1448
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