HomeMy WebLinkAboutNCC220220_Site Plan or Location Map_20220111CONSTRUCTION SCHEDULE
1. Obtain all necessary permits and plan approvals. Erosion and Sediment Control
(E&SC) permit and a Certificate of Coverage (COC) must be obtained before any land disturbing activities
occur. A copy of the E&SC permit, the COC and a hard copy of the plan must be kept on site, preferably in a
permits box, and accessible during inspection.
2. Install gravel construction entrances first, then silt fences, reinforced silt fence outlets and wattles.
3. Finish clearing and grubbing any necessary areas on the lots as they are started.
4. Begin lot grading and excavation activities
5. Begin or continue with house construction activities.
6. Finish all rough grading and house construction.
7. Install driveways, walks and patios.
8. Begin fine grading of lot areas
9. Final grassing, mulching and stabilizing of lot. In most cases this will involve the installation of sod on the lot.
The silt fence will remain in place until the lot is sodded or grassing is stabilized and takes hold.
10. The contractor shall conduct self -inspections of the erosion and sedimentation control measures and complete
the following combined self -inspection form found on the DENIER website
http s:Hfile s.nc.gov/ncdeg/Energy%20Mineral%20and%2OLand%2ORe source s/Stormwater/NPDE S%20
General%20Permits/DEMLR-CSW-Monitoring-Forms-Rev-August-8-2019.pdf. Twelve months of complete
inspection forms shall be kept on site and available for inspection at all times. It is recommended a copy be
kept in a permits box. (GS 113A-54.1 (e), 15A NCAC 0413.0131, NCGOI Part III Sections A and B)
11. Self -inspections for erosion and sedimentation control measures are to be performed at least once every seven
calendar days and within 24 hours of every rain event of greater than 1 inch. Any needed repairs shall be
made immediately to maintain measures as designed. All ESC measures shall be maintained as specified in
the construction details on this plan. A rain gauge shall be installed at the project site for monitoring.
12. Inspection and final acceptance letters. When the project is complete, the permittees shall contact DENIER to
close out the E&SC Plan. After DENIER informs the permittee of the project close out, via inspection report,
the permittee shall visit "deq.nc.gov/NCGO1" to submit an electronic Notice oftermination (e-NOT). A $100
annual general permit fee will be charged until the e-NOT has been filled out.
A "SELF -INSPECTION REPORT FOR LAND DISTURBING ACTIVITY AS REQUIRED BY
NCGS 113A-54.1"IS AVAILABLE FOR USE. IT CAN BE COMPLETED BY HAND OR
COMPLETED AS AN EXCEL SPREADSHEET.
AN ALTERNATIVE IS TO MAKE NOTATIONS ON THE COPY OF THE APPROVED
EROSION AND
SEDIMENTATION CONTROL PLAN THAT IS KEPT ON THE PROJECT SITE. RULE 15A
NCAC 04B. 0131 STATES THAT "...DOCUMENTATION SHALL BE ACCOMPLISHED BY
INITIALING AND DATING EACH MEASURE OR PRACTICE SHOWN ON A COPY OF THE
APPROVED EROSION AND SEDIMENTATION CONTROL PLAN OR BY COMPLETING,
DATING AND SIGNING AN INSPECTION REPORT THAT LISTS EACH MEASURE,
PRACTICE OR DEVICE SHOWN ON THE APPROVED EROSION AND SEDIMENTATION
CONTROL PLAN."
ATE: PAGE:
Silt Sock/ Wattle Silt Sock/ Wattlg . FLOW�� 3 Area to be FLOW 31, Area to be
II II Protected
Protected
12'' Min. 2" x 2" 12" Min.
�� 2" x 2"
Stakes Stakes
SECTION
To 1/2 height of log
UNTRENCHED INSTALLATION
ISOMETRIC VIEW
Mulch or Compost
for Untrenched Socks Area To Be
Protected
Sheet Flow
Silt Sock/
Wattle
Work Area
Steel Post
ground 4" Min
ENTRENCHED INSTALLATION*
COMPOST SOCK INITIAL FLOW RATES
Compost Sock
8 Inch
12 Inch
18 Inch
24 Inch
32 Inch
(nm)
Design Diameter
nm)
(300 nm)
(450 nm)
(600 nm)
Maximum Slope
600 Feet
750 Feet
1,00D
1,300
1,65D
Length (G2%)
(183 m)
(229 m)
Feet
Feet
Feet
(305 m)
(396 m)
(500 m)
Hydraulic Flow
7.5
11.3
15.0
22.5
30.0
Through Rate
gpm/ft
gpm/ft
gpm/ft
gpm/ft
gpm/ft
(94
(141
(188
(281
(374
LT SOCK / WATTLE FOR PERIMETER AND INLET PROTECTION
Wire Fence
- Steel Post
)4"
I 24„
down & 4" forward along the tr nch
-Filter Fabric PAGE:
Backfill trench
and Compact
thoroughly
1 Upslope
8" Min.
1
Construction: .� V~ v CROSS SECTION VIEW
1. Construct the sediment barrier of standard strength or extra strength synthetic filter fabrics.
2. Ensure that the height of the sediment fence does not exceed 24 inches above the ground. (Higher fences may impound volumes of water
sufficient to cause failure of the structure
3. Construct the filter fabric from a continuous roll out to the length of the barrier to avoid joints. When joints are necessary, securely fasten the
Maintenance:
9 1 1 Y, Y
1. Inspect sediment fences at least once a week and after each 1 inch or greater
filter cloth only at a support post with 4 feet minimum overlap to the next post. P
rainfall. Make an required repairs immediately.
4. bottom
Support
standard strength filter fabric b wire mesh fastened secure) to the upslope side of the posts. Extend the wire mesh support to the
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2. Should the fabric of a sediment fence collapse, tear, decompose, or become
bottom of the trench. Fasten the wire reinforcement then fabric on the u slo a side of the fence ost. W re or lastic zi ties should have a
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' p P P P P ineffective, replace it promptly.
minimum it pound tensile siren tli.
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3. Remove sediment deposits as necessary to provide adequate storage volume
5. When a wire mesh es support fence is used space posts a maximum of 8 feet apart. Supports should be driven secure) into the round a
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PP P P P PP Y 9 for the next rain and reduce pressure on the fence. Take care to avoid
minimum of 24 inches.
6. Extra strength filter fabric with 6 foot post spacing does not require a wire mesh support fence. Securely fasten the filter fabric directly to posts. undermining the fence during nd unstable
Wire or plastic zip tia
es should have a minimum of 50 pound tensile strength. 4. Remove all fencing materials and unstaa
ble sediment deposits and bring the
7. Excavate the trench approximately 4 inches wide and 8 inches deep along the proposed line of the posts and upslope from the barrier. area to grade and stabilize it after the contributing drainage area has been
8. Place 12 inches of fabric along the bottom and side of the trench. properly stabilized.
9. Backfill the trench with soil placed over the filter fabric and compact. Thorough compaction of the backfll is critical to silt fence performance.
10. Do not attach filter fabric to existing trees.
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TOP OF SILT FENCE
MUST BE AT LEAST
ABOVE THE TOP OF
THE WASHED STO ti
STEEL FENCE �TH
T
WIRE FEN
HARDWARE CL
FILTER OF
WASHED STO
BURY WIRE FENCE AND
CLOTH
SILT FENCE
4' MIN.
SILT FENCE
FRONT VIEW
BURY WIRE FENCE,
FILTER FABRIC,
AND HARDWARE
STEEL FENCE POPT CLOTH IN TRENCH
SET MAX 2' APARII-~
MIN. 18" INTO SOLID
3' FILTER FABRIC GROUND
ON GROUND NOTES:
1. Hardware cloth and gravel should overlay the silt fence at least 12 inches.
2. Stone outlets should be placed on low elevation areas of silt fence and
based on field conditions.
MAINTENANCE,
1. Per NCG-01, inspect outlet at lest once a week and after each 1
BURY 6" OF UPPER EDGE OF inch or greater rainfall event. Complete any required repairs
immediately.
FILTER FABRIC IN TRENCH
2. Freshen stone when sediment accumulation exceeds 6 inches.
3. Keep mesh free of debris to provide adequate flow.
4. Remove sediment when half of stone outlet is covered.
SECTION VIEW 5. Replace stone as needed to facilitate de -watering.
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v
rn
M
DRIVEWAY
PIPE IN DITC
(TYPICAL ALLOTS)
CONSTRUC ON
ENTRANCE
DRI WAY
PIPE DITCH \
(TYPICAL ALL LOTS)
390 \
E \�\\ 7 DAY GROUN�COVEF�i IN DITCH WHERE
PIPES HAVL BEEN INSTALLED
(TYPICA ALL LdZS)
�+ SILT ( FENCE
TYP�>,
W E REINFORCED
SILTFENCE
VCE
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04,
=NCE---�\ + REINFORCED /
D.) SILT FENCE
E OUTLET
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CONSTRUCTION
LIMITS
REINFORCED
SILT FENCE /
OUTLET /
362 -
THIS PROJECT IS IN A HIGH -QUALITY
WATER ZONE AND ALL REQUIREMENTS
REGARDING SENSITIVEAREA
WATERSHEDS SHOULD BE FOLLOWED
INCLUDING 7 DAY STABILIZATOION.
358
3,54
- -�
3`1.00
/
346
REINFORCED /
SILT FENCE \
OUTLET
LIIVIIIJ 1 17 LIMAS D
/ Z I \ m
1
5 16 1 s m
m
WATTLE REINFORCED
N SILT FENCE
WATTLE
REINFOR D
3`b 342 � x OUTLET
SILT FENC /
OUTLET
30' UTILITY
38 338 /
334 \ /
334
MAINTENANCE OF EROSION AND SEDIMENTATION CONTROL MEASURES FOR LOT CONSTRUCTION
General Erosion Control Notes
1. Only the areas shown shall be disturbed.
2. All disturbed areas shall be grassed and
mulched as soon as possible and maintained
until pemonent cover Is established.
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LEGEND
FLOW DIRECTION
SILT FENCE
DIVERSION DITCH _TD__Tr7__
WADDLE/ SILT SOCKS >
SILT FENCE OUTLET
CONSTRUCTION ENTRANCE
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General - All measures will be inspected and corrections made after runoff producing rainfalls, or at least once per week minimum. The builder will insure that the construction activities on any particular lot do not adversely affect any of the installed erosion control measures. If lot construction dictates, measures will be
relocated on the lot to insure that the potential for sedimentation runoff is eliminated as much as possible. Silt fences and gravel construction entrances will be maintained as suggested in the erosion control manual. Sodding, seeding and mulching will be maintained to insure proper ground stabilizing cover.
Gravel Construction Entrance - The gravel pad should remain in a condition to prevent mud or sediment from leaving the construction site. This may require periodic topdressing with 2-inch stone. After each rainfall, inspect any structure used to trap sediment and clean it out as necessary. Immediately remove all
objectionable materials spilled, washed, or tracked onto public roadways.
Silt Fence - Sediment fences should be inspected at least once a week and after each rainfall event. Any repairs should be made immediately. Damaged or decomposed fabric should be replaced promptly. Any sediment deposits that build up against the fence should be removed and disposed of properly to insure
that the removed sediment does not wash back against the fence. Adequate storage volume should be provided for behind the fence at tall times. Take care to not undermine the fence during cleanout operations.
Sodding - The sod should be properly maintained to insure that the grass take holds in the areas being secured. The sod should be watered as necessary to maintain adequate moisture in the root zone and prevent dormancy of the sod. The sod should not be mowed to close, since this could inhibit adequate growth
and stabilization of the root bed. The sod should be limed and fertilized as per soil type recommendations and type of grass recommendations when and if possible.
Grassing and Mulching - The area to receive grassing and mulching should be properly fertilized and limed as necessary as an initial step in soil preparation. Once the grassing has been placed, the area should be maintained as needed to insure that all areas are germinating properly. Any bare areas should be
repaired, and reseeded as soon as possible. If the time of year does not permit the establishment of a permanent grass, then a temporary grassing should be used until the growing season permits the use of a permanent grass.
Wattles - Wattles shall be inspected after significant rainfall events. Rills or gullies upslope of the wattle and any undercutting is to be repaired. Sediment deposits that impair the filtration capability of the wattle shall be removed when the sediment reaches one-third of the wattles functional freeboard height. Removed
sediment shall be deposited within the project in such a way that the sediment is not subject to erosion by wind or water.
Reinforced Silt Fence Outlet - Remove sediment deposits as necessary to provide adequate storage volume for the next rain to reduce pressure on the fence/outlet. Take care to avoid undermining the fence during cleanout. Remove and replace stone as necessary as it becomes clogged with sediment. Remove all
fencing materials and unstable sediment deposits and bring the area to grade and stabilize it after the contributing drainage area has been property stabilized.
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Notes:
1. If needed, Tree Protection fencing should be installed along the buffer zone, wetland
boundary and/or around protected trees, providing a radius of at least 1.25 feet for each
inch of trunk diameter.
2. Install Silt Fence on the low elevation sides of each lot. Install Silt Fence outlets shown on
schematic/diagram and field adjusted, if necessary, for placement at low points. If lots are
contiguous and have different land owners or builders, each lot should have individual Silt
Fences.
3. Install required Silt Fence within 10 feet of property line to ensure there is no conflict with
septic system. It is the responsibility of the builder to ensure the installation of sediment
control measures does not impact the septic system and repair area(s).
4. At least one Construction Entrance/Exit is to be installed per lot.
5. Waste bins and other areas dedicated for managing building material waste shall be at
least 50 feet away from storm drain inlets or drainage ditches unless it can be shown that
no other alternative exists. If this separation cannot be achieved, these areas must be
contained behind Silt Fence.
6. Inlets downstream of disturbances should be protected; streets should be swept when
sediment from the construction activity is present.
7. Details for Silt Fence, Silt Fence Outlets, Construction Entrances and other measures are
provided on additional sheets. Erosion and sediment control details are not drawn to
scale. TYPICAL LOT LAYOUT WITH ROADSIDE DITCHES
Maintenance:
1. Per NCG-01 inspect at least once a week and after each 1 inch or greater rainfall,
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make any required repairs immediately.
2. Maintain the ravel ad in a condition to prevent mud or sediment from leaving the
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construction site. This may require periodic to dressin with 2 inch stone.
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3. Immediately remove all objectionable materials spilled, washed or tracked onto public
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roadways.
CONSTRUCTION ENTRANCE / EXIT
PAGE 1 of 2
TOTAL DISTURBED ACREAGE: 8.951 ACRES
LOT EROSION CONTROL PLAN
LOTS 1-6, 10-12, 16, 19, 21 & 25-27
UNION HILLS
PHASE 1
FOR
H&H CONSTRUCTORS, INC.
CARTHAGE TOWNSHIP MOORE COUNTY
SCALE: 1 "= 100' NOVEMBER 2021
GRAPHIC SCALE
100 0 50 100 200 400
( IN FEET )
1 inch = 100 ft.
MOORMAN, KIZER & REITZEL, INC. 115 BROADFOOT AVE. FAYETTEVILLE, N.C. 28305
PHONE (910) 484-5191 FAX (910) 484-0388 LICENSE #F-0106
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LAST SAVED: 11\17/2021 1:24 PM LAST PLOTTED: II/17/2021 2:14 PM PLOTTED BY: Dennis Gilbert FILENAME: G:ACURRENT JOBS\H & H CONSTRUCTORS\21-1367-07 UNION HILLS-EC\PLANS\UNION HILLS EC -LOTS 1-6, 10-12, 16, 19, 21 & 25-27.DWG