HomeMy WebLinkAboutNCC222170_Site Plan or Location Map_20220613h'Lirsuanl ,r i I ,: for pernrjrincn, iiriri
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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.
ENGINEERS D
PLANNERS
SURVEYORS
MOORMAN,KIZER & REITZEL,INC.
4\
-� -
CONSTRUCTION
\466 LIMITS
REINFORCED
SILT FENCE
OUTLET
--- -------��� "
A "SELF -INSPECTION REPORT FOR LAND DISTURBING ACTIVITY AS REQUIRED BY `WATTLE
CONSTRUCTION SCHEDULE NCGS 113A-54.1"IS AVAILABLE FOR USE. IT CAN BE COMPLETED BY HAND OR 4
1. Obtain all necessary permits and plan approvals. Erosion and Sediment Control COMPLETED AS AN EXCEL SPREADSHEET. 70
(E&SC) permit and a Certificate of Coverage (COC) must be obtained before any land disturbing activities AN ALTERNATIVE IS TO MAKE NOTATIONS ON THE COPY OF THE APPROVED \
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 EROSION AND
permits box, and accessible during inspection. SEDIMENTATION CONTROL PLAN THAT IS KEPT ON THE PROJECT SITE. RULE 15A
2. Install gravel construction entrances first, then silt fences, reinforced silt fence outlets and wattles. NCAC 04B. 0131 STATES THAT "...DOCUMENTATION SHALL BE ACCOMPLISHED BY
INITIALING AND DATING EACH MEASURE OR PRACTICE SHOWN ON A COPY OF THE
3. Finish clearing and grubbing any necessary areas on the lots as they are started.
APPROVED EROSION AND SEDIMENTATION CONTROL PLAN OR BY COMPLETING
WATTLE
4. Begin lot grading and excavation activities DATING AND SIGNING AN INSPECTION REPORT THAT LISTS EACH MEASURE, 474 f /
5. Begin or continue with house construction activities. PRACTICE OR DEVICE SHOWN ON THE APPROVED EROSION AND SEDIMENTATION \
6. Finish all rough grading and house construction. CONTROL PLAN."
7. Install driveways, walks and patios.
8. Begin fine grading of lot areas f SILT FENCE
9. Final grassing, mulching and stabilizing of lot. In most cases this will involve the installation of sod on the lot. 4 78 \ (TYP.)
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 t
the following combined self -inspection form found on the DEMLR website /
https:Hfiles.ne.gov/nedeg/Energy%20Mineral%20and%2OLand%2OResources/Stormwater/NPDES%20 / \ CONSTRUCTION
General%20Permits/DEMLR-CSW-Monitoring-Forms-Rev-August-8-2019.pdf. Twelve months of complete ENTRANCE ,
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 f /
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 DEMLR to /
close out the E&SC Plan. After DEMLR informs the permittee of the project close out, via inspection report,
the permittee shall visit "deq.nc.gov/NCGO1" to submit an electronic Notice of termination (e-NOT). A $100
annual general permit fee will be charged until the e-NOT has been filled out. / WATTLE
DATE: PAGE:
Silt Sock/ Wattle Silt Sock/ Wattle NOTE:
FLOW' 8�� Area to be FLOW 8Area to be 1. Other materials providing equivalent protection
I I I I Protected against erosive velocities may be substituted for
Protected
use in silt socks or wattles.
12" Min. 2. Fill silt sock/wattle netting uniformly with compost
2" x 2" 12" Min. 2" x 2" to the desired length such that logs do not deform.
Stakes Stakes 3. Silt sock/Wattle(s) should be installed parallel to
SECTION and a minimum of 10 feet beyond the toe of a
SECTION graded slope. Sift Sock/Wattle(s) located below
flat areas should be located at the edge of the
land disturbance. The ends of the silt
sock/wattle(s) should be turned slightly upslope to
jWo.d
�, MaX.FAO Maprevent runoff from going around the end of the
0siltsock/wattle(s).
4. Oak or other durable hardwood stakes with a 2
inch x 2 inch cross section should be driven
vertically plumb, through the center of the silt
sock/waffle. Stakes should be placed at a
maximum interval of 4 feet or a maximum interval
Trench in of 8 feet d the sift sock/waffle is placed in a 4 inch
Mulch or Comp st ground 4' Min. trench.
To 1 /2 height of log 5. In the event staking is not possible (ie. when
UNTRENCHED INSTALLATION ENTRENCHED INSTALLATION* sockstwaffles are used on pavement) heavy
-THISAPPLICATION MAY NOT BE USED WTH COMPOST SOCKS SMALLER THAN I2"_ concrete blocks shall be used behind the silt
sock/waffle to hold ft in place during runoff events.
ISOMETRIC VIEW MAINTENANCE:
1. Inspect silt sock/waffle at least weekly and after
h 1 h t f II R
Mulch or Compost
for Untrenched Socks Area To Be Pr
Sheet Flow
Silt Sock
Work Area Wattle
eac Inc or grea er ram a . emove
accumulated sediment and any debris as
needed to allow for adequate flow.
2. Silt sock/Wattle must be replaced if clogged or
torn.
3. If ponding becomes excessive, the sift
sock/waffle may need to be replaced with a
larger diameter or a different measure.
4. Reinstall if damaged or dislodged.
5. Silt sockstwaffles shall be inspected until land
disturbance is compete and the area above the
measure has been permanently stabilized.
qC-Envir tul.jpeyILT SOCK / WATTLE FOR PERIMETER AND INLET PROTECTION
COMPOST SOCK INITIAL FLOW RATES
tedt@MP ost Sock
8 Inch
12 Inch
18 Inch
24 Inch
32 Inch
(nm)
Design Diameter
�2m�
(300 nm)
(450 nm)
(600 nm)
Maximum Slope
600 Feet
750 Feet
1,000
1,300
1,650
Length (Q%)
(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
I/m/m)
I/m/m)
I/m/m)
I/m/m)
I/m/m)
L 24
8"d &4"f oi l th t h
Town o war a ong e r nc
24"
Filter Fabric
Construction:
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)
Maintenance:
3.
Construct the filter fabric from a continuous roll cut to the length of the barrier to avoid joints. When joints are necessary, securely fasten the
filter cloth only at a support post with 4 feet minimum overlap to the next post.
1 Inspect sediment fences at least once a week and after each 1 inch or greater
4.
Support standard strength filter fabric by wire mesh fastened securely to the upslope side of the posts. Extend the wire mesh supportto the
rainfall. Make any required repairs immediately.
bottom of the trench. Fasten the wire reinforcement, then fabric on the upslope side of the fence post. Wire or plastic zip ties should have a
2 Should the fabric of a sediment fence collapse, tear, decompose, or become
minimum 50 pound tensile strength.
ineffective, replace it promptly.
5.
When a wire mesh support fence is used space posts a maximum of 8 feet apart. Supports should be driven secure) into the round a
pp p p p pp y g
3. Remove sediment deposits as necessary to provide adequate storage volume
minimum of 24 inches.
for the next rain and reduce pressure on the fence. Take care to avoid
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 cleanouts.
Wire or plastic zip ties should have a minimum of 50 pound tensile strength.
4 Remove all fencing materials and unstable 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 backfill is critical to silt fence performance.
10. Do not attach filter fabric to existing trees.
C-
SILT FENCE
DATE: PAGE:
4' MIN. - I SILT FENCE
TOP OF SILT FENCE
MUST BE AT LEAST
ABOVE THE TOP OF
THE WASHED STO
STEEL FENCE P S
WIRE FEN
HARDWARE CL TH
FILTER OF
WASHED STON Q,
BURY WIRE FENCE AND HARDWARE CLOTH
..\NC -En
FRONT VIEW
BURY WIRE FENCE,
FILTER FABRIC,
AND HARDWARE
STEEL FENCE POPT CLOTH IN TRENCH
SET MAX 2' APAR
MIN. 18" INTO SOLID
3' FILTER FABRIC GROUND
ON GROUND NOTES:
1. Hardware cloth and gravel should overlay the sift 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 inch
or greater rainfall event. Complete any required repairs immediately.
BURY 6" OF UPPER EDGE O
FILTER FABRIC IN TRENCH 5. Freshen stone when sediment accumulation exceeds 6 inches.
3. Keep mesh free of debris to provide adequate flow.
4. Remove sediment when haft of stone outlet is covered.
5. Replace stone as needed to facilitate de -watering.
SECTION VIEW
SILT FENCE OUTLET
�86
��
Mq00
490
V
CONSTRUCTION
LIMITS
�=
SODDING
LAY SOD IN A STAGGERED
��
PATTERN. AGAINST
THE EACH IPS OTHER.
TIGHTLY AGAINST EACH OTHER.
-
DO NOT LEAVE SPACES AND DO
r
NOT OVERLAP.A SHARPENED
" MASON'S TROWEL IS A HANDY
TOOL FOR TUCKING DOWN THE
r
W ENDS AND TRIMMING PIECES.
BUTTING - ANGLED ENDS
INCORRECT CAUSED BY O-
MATIC SOD CUTTER MUST BE
M= MATCHED CORRECTLY.
CORRECT
US
US L01
15
ROLL SOD IMMEDIATELYTO WATER TO A DEPTH OF 4" MOW WHEN THE SOD IS
ACHIEVE FIRM CONTACT AS NEEDED. WATER WELL ESTABLISHED - IN 2-3
WITH THE SOIL, AS SOON AS THE SOD IS WEEKS. SET THE MOWER
LAID. HIGH (2"-3").
APPEARANCE OF GOOD SOD
SHOOTS - OR GRASS BLADES_
GRASS SHOULD BE GREEN AND
HEALTHY, MOWED AT A2"-3"
CUTTING HEIGHT_
THATCH - GRASS CLIPPINGSAND DEAD
LEAVES, UPTO 112"THICK_
ROOTZONE-SOILAND ROOTS SHOULD BE
11T - 3W THICK, WITH DENSE ROOT MAT
FOR STRENGTH_
u�2
CONSTRUCTION T\
ENTRANCE
MAINTENANCE OF EROSION AND SEDIMENTATION CONTROL MEASURES FOR LOT CONSTRUCTION
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.
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 insureGrassing
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.
Diversion Berms - Diversion berms shall be inspected weekly or after each runoff producing rainfall to insure that they are operating as designed and that there
have been no breaches in the berm. Berns shall not exceed 18" in height, and shall be placed in locations that will not interfere with home construction activities.
Once the house contraction is completed and the lot is ready to receive sod, then the berm shall be removed and the material inwrporated into the graded lot area
and covered immediately with sod. All proper care shall be taken to insure that the berms are installed according to the applicable detail with the berm material
compacted sufficiently to insure that the berm remains in place during the course of the construction activities.
General - All measures will be inspected and correction 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 fmws 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.
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 gmde
and stabilize it after the contributing drainage area has been properly stabilized.
bt- 0
/ V
CONSTRUCTION
LIMITS
SILT FENCE
(TYP.)
THIS PROJECT IS IN A HIGH -QUALITY
WATER ZONE AND ALL REQUIREMENTS
REGARDING SENSITIVE AREA
WATERSHEDS SHOULD BE FOLLOWED
INCLUDING 7 DAY STABILIZATION.
DATE:
GROUND STABILIZATION
SITE AREA
STABILIZATION
EXCEPTIONS
DESCRIPTION
TIME FRAME
PERIMETER DIKES,
7 DAYS
NONE
SWALES, DITCHES
& SLOPES
HIGH QUALITY
7 DAYS
NONE
WATER ZONES
(HQW)
SLOPES STEEPER
7 DAYS
IF SLOPES ARE
THAN 3:1
10' OR LESS IN
LENGTH AND ARE
NOT STEEPER
THAN 2:1, 14
DAYS ARE
ALLOWED
SLOPES 3:1 OR
14 DAYS
7 DAYS FOR
FLATTER
SLOPES GREATER
THAN 50' IN
LENGTH
ALL OTHER AREAS
14 DAYS
NONE (EXCEPT
WITH SLOPES
FOR PERIMETERS
FLATTER THAN 4:1
AND HQW ZONES)
Construction: Maintenance:
1. Clear the entrance and exit area of all vegetation, roots, and other objectionable 1. Per NCG-01 inspect at least once a week and after each 1 inch or greater rainfall,
material and properly grade it. make any required repairs immediately.
2. Place the gravel to the specific grade and dimensions shown on the plans, and 2. Maintain the gravel pad in a condition to prevent mud or sediment from leaving the
mooth it. construction site. This may require periodic topdressing with 2 inch stone.
3.s Provide drainage to carry water to a sediment trap or other suitable outlet. 3. Immediately remove all objectionable materials spilled, washed or tracked onto public
4. Use geotextile fabrics in order to improve stability of the foundation in locations roadways.
subject to seepage or high water table.
CONSTRUCTION ENTRANCE / EXIT
R/e
u
cec
EDGFOFCURR Notes:
C. INLET 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
LEGEND inch of trunk diameter.
2. Install Silt Fence on the low elevation sides of each lot. Install Silt Fence outlets shown on
FLOW DIRECTION schematic/diagram and field adjusted, if necessary, for placement at low points. If lots are
SILT FENCE contiguous and have different land owners or builders, each lot should have individual Silt
Fences.
SILT FENCE OUTLET 3. Install required Silt Fence within 10 feet of property line to ensure there is no conflict with
CONSTRUCTION ENTRANCE septic system. It is the responsibility of the builder to ensure the installation of sediment
CURB INLET 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.
..\NC-Environmental.jpeg 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 CURB AND GUTTER
PAGE:
' PAGE 1 of 2
I LOT EROSION CONTROL PLAN FOR
ONSITE HOMES, LLC
TOTAL DISTURBED ACREAGE: 2.92 ACRES
LOTS 1-3
WHITE HILL
ESTATES
GREENWOOD TOWNSHIP
SCALE: 1 "= 50'
MOORE COUNTY, N.C.
MAY 2022
GRAPHIC SCALE
50 0 25 50 100 200
( IN FEET )
1 inch = 50 ft.
MOORMAN, KIZER & REITZEL, INC. 115 BROADFOOT AVE. FAYETTEVILLE, N.C.
PHONE (910) 484-5191 FAX (910) 484-0388 License #: F-0106
LAST SAVED:5/26/2022 6:13 AM LAST PLOTTED: 5/25/2022 11:16 AM PLOTTED BY: Dennis Gilbert FILENAME: G:ACURRENT JOBS\ONSITE HOMES\22-2724-03 WHITE HILL-EC\PLANS\WHITE HILL ESTATES -LOTS 1-3.DWG