WS0801069_Application_20220803 (4)

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EROSION CONTROL PLAN INFORMA'
NARRATIVE
PROJECT DESCRIPTION
THE PURPOSE OF THIS PROJECT 15 TO CONSTRUCT A NEW GROUNDWATER SUPPLY DEEP WELL TO SERVE WATER & SEWER
DISTRICT I OF THE COLUMBUS COUNTY SYSTEM_ THE WELL IS LOCATED JUST NORTH OF TABOR CITY,
THE DISTURBED AREA WILL BE MINIMAL. COMPRISING APPROXIMATELY 1 ACRE.
SITE DESCRIPTION
CONSTRUCTION OF THE PROPOSED WELL WILL BE ENTIRELY WITHIN EXISTING COLUMBUS COUNTY PROPERTY. HIGHWAY INC
HIGHWAY 701 RIGHT-OF-WAY WILL BE UTILIZED FOR ACCESS TO THE SITE. NO ADDITIONAL WATER MAIN CONSTRUCTION
WILL BE REQUIRED. ASIDE FROM MINIMAL FOOTAGE ON THE PROPOSED WELL PROPERTY.
soils
SOIL TYPES ARE SHOWN ON THE USGS WEE SOIL SURVEY MAP PROVIDED IN THIS SUBMITTAL,
PLANNED S&E CONTROL PRAC71.M5
TEMPORARY CONSTRUQIlOIN-ENLRANCE
A TEMPORARY CONSTRUCTION ENTRANCE SHOULD NOT BE NECESSARY, THERE IS AN EXISTING DEVELOPED
DRIVEWAY WHICH ALREADY PROVIDES SITE ACCESS.
SILT PENCE
SILT FENCE WILL BE: CONSTRUCTED ACCORDING To ESTABLISHED BEST MANAGEMENT PRACTICES,
ROCK DAM AND/OR EXCELSIOR SILT WATTLES
ROCK DAMS WILL BE CONSTRUCTED ACCORDING TO ESTABLISHED BEST MANAGEMENT PRACTICES.
INSTALLATION OF NETTING AND MATTING
PRODUCTS DESIGNED TO CONTROL EROSION SHOULD BE INSTALLED IN
ACCORDANCE WTH MANUFACTURER'S INSTRUCTIONS. ANY MAT OR
BLANKETTYPE PRODUCT USED AS PROTECTIVE MULCH SHOULD PROVIDE
COVER OF AT LEAST 30% OF THE SURFACE WHERE IT IS APPLIED.
INSTALLATION IS ILLUSTRATED BELOW.
I. APPLY LIME, FERTILIZER AND SEED BEFORE LAYING THE NET OR MAT.
IF OPENWEAVENETTING IS USED, LIME MAY HE INCORPORATED BEFORE
INSTALLING THE NET AND FERTILIZER AND SEED SPRAYED ON
AFTERWARD.
2, START LAYING THE NET FROM THE TOP OF THE CHANNEL OR SLOPE
AND UNROLL IT DOWN THE GRADE. ALLOW NETTING TO LAY LOOSELY
ON THE SOIL BUT WITHOUT WRINKLES --DO NOT STRETCH.
3, TO SECURE THE NET, BURY THE UPSLOPE END IN A SLOT OR TRENCH
NO LESS THAN 6 INCHES DEEP. COVER WTH SOIL, AND TAMP
FIRMLY, STAPLE THE NET EVERY 12 INCHES ACROSS THE TOP END
AND EVERY 3 FT AROUND THE EDGES AND HOTTOM- WHERE 2 STRIPS
OF NET ARE LAID SIDE BY SIDE, THE ADJACENT EDGES SHOULD BE
OVERLAPPED 3 INCHES AND STAPLED TOGETHER. EACH STRIP OF
NETTING SHOULD ALSO BE STAPLED DOWN THE CENTER, EVERY 3 FT.
DO NOT STRETCH THE NET WHEN APPLYING STAPLES.
4. TO JOIN TWO STRIPS. CUT A TRENCH TO ANCHOR THE END OF THE
NEW NET. OVERLAP THE END OF THE PREVIOUS ROLL 18 INCHES,
AND SAMPLE EVERY 12 INCHES JUST BELOW THE ANCHOR SLOT.
MAINTENANCE
INSPECT ALL MULCHES PERIODICALLY, AND AFTER RAINSTORMS TO CHECK
FOR RILL EROSION, DISLOCATION, OR FAILURE. MERE EROSION IS
OBSERVED, APPLY ADDITIONAL MULCH. IF WASHOUT OCCURS, REPAIR
THE SLOPE GRADE, RESEED, AND REINSTALL MULCH. CONTINUE
INSPECTIONS UNTIL VEGETATION IS FIRMLY ESTABLISHED.
Engineering
TEMPORARY LINER
IN CHANNELS, ROLL OUT STRIPS
OF NETTING PARALLEL TO THE
DIRECTION OF FLOW AND OVER
THE PROCTECTIVE MULCH.
IIIIII
�IIIII
Ililll%II�IIIIII NNE --
ANCHOR NETTING IN
A 5—INCH TRENCH_
l8"
OVERLAP JOIN STRIPS BY
ANCHORING AND
OVERLAPPING.
LA51 EKtVISEU: DETAIL
"I'll"23, I. HY: LIE 31-25-05
EROSION CONTROL NOTES
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1, CONTACT WILMINGTON REGIONAL OFFICE LAND QUALITY, (910-796-7215). BEFORE
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ANY WORK BEGINS ON SITE.
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2. STABILIZE PER THE NPDES PERMIT STA131HZATION GUIDELINES-
3. ALL EXCAVATED MATERIAL TO REMAIN ONSITE AND BACKnLLED. UNLESS
SEAL =
UNSUITABLE FOR TRENCH BACKRLL.
= 030003
4. UTTLTIES SHOWN ON PLANS ARE LOCATED APPROXIMATELY. CONTRACTOR SHALL
BE RESPONSIBLE FOR VERIFYING THE LOCATION OF ALL EXISTING UTILITIES AND
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SERVICES WHETHER SHOWN ON PLANS OR NOT.
5. CONTRACTOR TO CALL N.C-O-C C. AT 1-800-632-4949 A MINIMUM OF 48
1 1/4'0 SON. 4G
SQ.
ANCHOR BOLTS {4 MIN}
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HOURS PRIOR TO EXCAVATION/GRADING.
STAINLESS STEELLEVELINDICATOR
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tp m INNER CASING
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6. SILT FENCE MUST BE SUPPLIED AND INSTALLED WITH STEEL POST AND WIRE
R E
DISCHAPIPE HEAOU PLA�
r IT \Aar`,
BACKING AT 8" O.C,
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7_ NO WORK ONSITE ALLOWED UNTIL E&S CONTROL PLAN IS APPROVED. APPROVED
ELECTRICAL JJNCTIDN BOX
PERMIT SHALL BE KEPT ONSITE AT A CENTRALIZED LOCATION FOR REVIEW,
PRESSURE GAUGE
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8. INSTALL RAIN GAGE AT A CENTRAL LOCATION FOR THE SITE. SUCH AS THE
AIR/VACUUM VALVE
20'0 OUTER CASING, MILD STEEL .375" THICKNESS
PROPOSED WELL HOUSE BUILDING LOCATION.
CONCRETE PUMP RASE
1 1/2m STAINLESS
9. LOG BOOK SHALL HE MAINTAINED BY THE CONTRACTOR AND SHALL BE AVAILABLE
FOR INSPECTION WHEN REQUESTED- SELF -INSPECTION FORMS $HALL BE KEPT
PLAN MEW
STEEL VENT
ONSITE AND UPDATED BY THE OWNER OR ITS REPRESENTATIVE.
9
TO INSTALL APPLICABLE E&S CONTROL MEASURES PRIOR TO ONSET OF ANY LAND
DISTURBING ACTIVITIES.
Engineering
11. INSTALL GROUND COVER ON EXPOSED SLOPES WITHIN 14-CALENUAR DAYS
FOLLOWING COMPLETION OF ANY PHASE OF TRENCHING OR GRACING.
12 INSTALLGROUND COVER FOR ALL AREA'S
ELECTRICAL J.B.
1-f
RKINGMANENT
15 DAYYS FOLLOWING COMPLEf ON OFDISTURBED
CONS RUCTION ACTIVITIES_
WATER
13 SILT FENCEMUST HE ALLED IN ANY AREAS WHERE SEDIMENT TRANSPORT
ANCHOR BOLTDOWNST
WASTEWATER
14. DISTURBED AREA WILL BE: 1 A..
Rf
RASE PLATE TOP
92.5
2sD'
SURVEYING
15. CONTACT PERSON RESPONSIBLE FOR MAINTENANCE: EOWIN MADDEN. JR. /
�i
COUNTY MANAGER / COLUMBk15 COUNTY
_
TOP OF OUTER CASING
PLANNING
16. AREA TO BE VEGF7AnVELY STABILIZED WILL BE: 1 ACRE-
TN FLOOR EL SLOO'
EL. 91.50'
17. RECEIVING WATER COURSES WILL BE: MILL BRANCH SWAMP.
PROJECT MANAGEMENT
E%. GROUND (G')
a- 80.70'
NC FIRM LICENSE: P-0115
BENTONITE i
(OUTER CASING)
303 GOLDSBORO ST E
P.O. BOX 609
WILSON. NC 27893
TEL [phone]
EROSION CONTROL LEGEND
FAX [phone]
1. STABILIZATION SHALL BE PERFORMED ACCORDING To THE REauIREMENTs OF THE NPDES
END OF OUTER CASING
OffiCe9greeDOD9.COOT
GROUNRCOVER STABILIZATION TIMETABLE (SEE NEW STABILIZATION TIMLFRAMES-THIS SHEET).
EL 6-50'
UKEWISE, STABILIZATION SHALL BE PROVIDED IMMEDIATELY FOLLOWING EVERY 3.000 LINEAR FEET
6"0 CERTA-LOK
OF WATER MAIN PIPE INSTALLED. OR EVERY 7 DAYS. WHICHEVER OCCURS FIRST.
SCHEDULE 60
,
-
CROP PIPE
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BENTONITE
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2. SILT FENCE TO BE INSTALLER AS SHOWN ON THE PLANS OR AS REEMER NECESSARY BY VISUALm
OBSERVATION.
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SOUTH
MOLD INNER CASINGPIPE,
�
35'U
MILD STEEL, .75" WALL THICKNESS
COLUMBUS
SILT FENCE T�®~
ROCK CHECK RAMS OR EXCELSIOR SILT LOG WATTLES O
DEEP
CONCRES7= WASTE WASHOUT DENCE
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BENTONITE
WELL
TEMPORARY CONSTRUCTION ENTRANCE
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1 1/a'm W}10E6 ELBOW
199' EL-100.22'
TOP GRAVEL PACK 191'
10' NEAT CEMENT GROUT
(191') EL.-102.22'
WATER SUPPLY
EL.-1G222'
Is
TOP OF SCREEN (201'
EL.--112.22'
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IMPROVEMENTS
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GRAVEL PACK BETWEEN
CASINGS AND HOLE
CULLUM OF SCREEN (231')
1
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COLUMBUS COUNTY
EL-142.22'
�
NORTH CAROLINA
TEMPORARY LINER
TOP OF SCREEN (25W)
WHERE REQUIRED
FL-169.22'
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BOTTOM OF SCREEN 263'}
DEEP WELL
EL-17422'
OF SCREEN 264'
PUMPING
EL
FACILITY
3 3
a�
GRASS LINLD
EOTrOM OF SCREEN (32'r)
B
CHANNEL
(PERMANENT)
EL -235 72'
'NOTES'
GRAVEL PACK SIZE & SCREEN SLOT SIZE
DATE, MAY 2022
STRAW W/NETTING
BOT OF CASING PIPE (334')
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iH�
SHOOLD BE BASED UPON GRAIN 97E/EIEVE
ANALYSIS.
REVISION
DATE
BY
(TEMPORARY)
FL-245.22'
ttl
TYPICAL SWALE SECTION WELL AND DISCHARGE HEAD DETAIL
SCALE CuD w/O:cOLUM\2I-131
DETAIL Ej
AS SHOWN DRAWN BY:TKW
NTH REVISED:MAY 2022
SHED: 4 of 17 45-E-010