NCC215871_Site Plan or Location Map_20211021

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VICINITY MAP
INDEX OF SHEETS
SHT No. DRAWING DESCRIPTION
1 Overall Subdivision Plan
2 Erosion Control Plan
3 Sediment & Erosion Control
Details & Notes (1 of 2)
4 Sediment & Erosion Control
Details & Notes (2 of 2)
OWNER/DEVELOPER
9
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1" = 2000'
TERRAMOOR HOMES
A D.R. Horton Company : TerramorHomes.com
7208 FALLS OF NEUSE ROAD, SUITE 201
RALEIGH, NORTH CAROLINA
ATTN: TRACEY DAVIS
OFFICE: 919-792-3745
MOBILE: [phone]
CIVIL ENGINEERS/ PLANS PREPARED BY:
WithersRavenel
Janis Teeter Ir
Pineville Club:
Spa-r-itness Center
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Engineers I Planners I Surveyors
115 MacKenan Drive Cary, NC 275111 t: 919.469-33401 license AC-08321 www.withersravenel.com
PERSON TO CONTACT REGARDING STAFF COMMENTS OR QUESTIONS:
DALE WERENKO, PE, CFM dwerenko®withersrovenel.com
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MAGNOLIA
SUBDIVISION
PB67PG314
MAGNOLIA
SUBDIVISION
PB 67 PG 314.316
SINGLE LOT EROSION CONTROL PLANS FOR
JOHNSTON COUNTY, NORTH CAROLINA
THE ARDENS AT
FL0WELANTAT ION
March 23, 2021
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I -LIMITS OF
— — — — — — — — — CONSTRUCTION
SCALE: 11" = 20D'

141
®�� �� / 259 \ \\ �\ 109
263
264
142
258 \ \\ \\
/ ii 265
14 EASEMENT
DRAINAGE \ / 266
257/>
144 \ \
267
\ , \ 3 \ 256
/ < 272 27 /
\
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145 \ /
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\ \ 270 \
275
\ 276
268
285
284
286
277
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287
229
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291 292
300
223
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278
279
If,
\ 250
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\ 249 \/
/ \ 299 _ 293 \, ,
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PUBLIC UTILITY EASEMENT
/ \\\ 234 298
225 \\ \ 297 294
47 /
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r o CAR GENERAL NOTES: / / 296 /
\ 235 / Q �� °°
i 1. THIS PLAN IS PROVIDED FOR GRAPHIC REPRESENTATION OF THIS SUBDIVISION FO THE \ \� _ / I 2 J5 / / �// �� /Q�pFESS/pN9�°may
PURPOSE OF FACILITATING INDIVIDUAL SINGLE FAMILY LOT EROSION CONTROL PERMI . T 226 =. �� �� o o a g
\ , / �� / g SEAL %
PLAN IS NOT A SUBDIVISION DESIGN DOCUMENT AND IS NOT TO BE USED FOR ANY R g
PURPOSES THAN A REFERENCE DOCUMENT FOR SINGLE FAMILY LOT EROSION CONTR \ _ / \ o g° 026495 0
PERMITS WITH THIS PROJECT. \ \ I ��� a o
\ I`�N� I NEB-`�,�
i 2. EXISTING BOUNDARY LINEWORK, LOT LAYOUT, EASEMENTS, RIPARIAN BUFFERS, WETLAND \ \ \ / / 246 ��� °°°°°pq °°°°°°°°°°° 400 o' PRELIMINARY
AND FLOOD HAZARD SOILS SHOWN WITHIN THE PROJECT LIMITS ARE BASED ON RECORD / / °ao �E REN",
PLATS AND APPROVED CONSTURCTION DRAWINGS BY WITHERSRAVENEL INC. FOR SAN = \ 236 r I ooa w� 90o NOT ISSUED FOR
? \\ I I d PERMITTING
000000000
MARINO PHASE 4. / 227
3. REFERENCE FOR APPROVED CONSTRUCTION DRAWINGS ARE PLANS PREPARED BY
WITHERSRAVENEL INC. ENTITLED SAN MARINO PHASE 4 DATED FEBRUARY 4, 2020 / / I I SHADING LEGEND
) I
JOHNSTON COUNTY PROJECT #JC19 131 P 237 III I
4. REFERENCE FOR RECORDED PLATS ARE PENDING
5. EXISTING TOPOGRAPHY IS BASED ON TOPOGRAPHY PROVIDED BY WITHERSRAVENEL INC �— \ \ 238 I I ICI RESIDENTIAL LOTS THAT ARE SUBJECT TO
COMBINED WITH THE PROPOSED SITE GRADING PLAN AS SHOWN ON THE APPROVED \ \ / 245
CONSTRUCTION DRAWINGS FOR THIS PROJECT. LAND DISTURBANCE PERMIT IN CONJUNCTION
Jy/ ® �� \ l / I I I WITH THIS PLAN
U A / II
N / I �I
6. PARCELS AND TOPOGRAPHIC FEATURES SHOWN FOR THE SURROUNDING AREAS OUTSIDE _ —� \ \ \ \ 239 I I IIII I�
OF THE PROJECT LIMITS ARE BASED ON GIS INFORMATION.
7. FEMA FLOODPLAIN IS NOT LOCATED WITHIN THE PROJECT LIMITS AS SHOWN ON FEMA FIRM 0 25' 50' 100' 200'
3720079900J DATED MAY 2, 2006.
240 I l�
/ I �I
8. NO NEUSE RIVER RIPARIAN BUFFERS EXIST WITHIN THE PROJECT LIMITS. �/ / \ �� ®
/ SCALE: 1 • - 60'
No. Revision Date By
Designer
WR
Scale
1"=50'
Drawn By
Date
dw
03/23/21
Checked By
lob No.
dw
2140521.12
SAN MARINO - PHASE 4
SINGLE LOT EROSION CONTROL PLAN
wiioExs .owNswr JOHNSTON mui+ry rvox1H ueourvT
Overall Subdivision Plan
WithersRavenel
Engineers I Planners I Surveyors
115 MacKenan Drive Cary, INC 275111 t: 919.469-33401 license #:C-08321 www.withersravenel.com
Sheet No.
1of
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EROSION CONTROL LEGEND
F
x—x GRAVEL YARD INLET PROTECTION
HORSESHOE PIPE
v INLET PROTECTION
PRE —FORMED SCOUR HOLE
GRAVEL CHECK DAM OR
COIR WATTLE CHECK DAM
-------� TEMPORARY SLOPE DRAIN
ARMORED SLOPE DRAIN
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CONSTRUCTION SEQUENCE
1. OBTAIN EROSION CONTROL PLAN APPROVAL AND OTHER APPLICABLE PERMITS PRIOR
TO CONSTRUCTION.
2. SCHEDULE A PRECONSTRUCTION CONFERENCE WITH THE JOHNSTON COUNTY
ENVIRONMENTAL INSPECTOR AND CONTRACTOR AT LEAST ONE WEEK PRIOR TO
BEGINNING CONSTRUCTION. OBTAIN A LAND —DISTURBING PERMIT.
3. INSTALL GRAVEL CONSTRUCTION PAD, TEMPORARY DIVERSIONS, SILT FENCE OR
OTHER MEASURES AS SHOWN ON THE APPROVED PLAN. CLEAR ONLY AS NECESSARY
TO INSTALL THESE DEVICES. PROVIDE GROUNDCOVER FOR ALL DISTURBED AREAS
IMMEDIATELY AFTER CONSTRUCTION.
4. CALL FOR AN ON —SITE INSPECTION BY THE WATERSHED MANAGER TO OBTAIN A
CERTIFICATE OF COMPLIANCE.
5. BEGIN CONSTRUCTION, BUILDING, CLEARING AND GRUBBING. MAINTAIN EROSION CONTROL
DEVICES AS NEEDED.
6. STABILIZE SITE AS AREAS ARE BROUGHT UP TO FINISH GRADE WITH VEGETATION,
PAVING, DITCH LININGS, ETC. PROVIDE GROUNDCOVER FOR DENUDED AREAS PER
NPDES GROUND STABILIZATION TIMEFRAMES.
7. WHEN CONSTRUCTION IS COMPLETE AND ALL AREAS ARE PERMANENTLY STABILIZED
AND EROSION CONTROL MEASURES ARE REMOVED, CALL JOHNSTON COUNTY
ENVIRONMENTAL INSPECTOR FOR AN INSPECTION.
8. OBTAIN A CERTIFICATE OF COMPLETION.
GENERAL NOTES - EROSION CONTROL
1. ALL LAND DISTURBING ACTIVITIES SHALL BE CONDUCTED IN ACCORDANCE WITH
JOHNSTON COUNTY SOIL EROSION AND SEDIMENTATION CONTROL STANDARDS
AND PRACTICES.
2. THE CONTRACTOR SHALL BE RESPONSIBLE FOR MAINTAINING ALL TEMPORARY
SEDIMENTATION AND EROSION CONTROL DEVICES SHOWN ON THE APPROVED PLAN.
3. RECEIVING WATERCOURSE: MILL CREEK AND NEUSE RIVER.
4. SEDIMENT SHALL BE REMOVED FROM BEHIND THE FENCE WHEN IT BECOMES
APPROXIMATELY 6 INCHES DEEP AT THE FENCE. THE SILT FENCE SHALL BE REPAIRED
AS NECESSARY TO MAINTAIN A BARRIER.
5. CONTRACTOR SHALL MAT ALL SLOPES GREATER THAN 3:1 AS REQUIRED BY
JOHNSTON COUNTY.
6. ALL SEEDED AREAS SHALL BE FERTILIZED, RESEEDED AND MULCHED AS NECESSARY
ACCORDING TO THE SPECIFICATIONS IN THE EROSION CONTROL DETAILS IN ORDER TO
ESTABLISH A VIGOROUS VEGETATIVE COVER.
NPDES STABILIZATION CHART
I GROUND STABILIZATION*
Site Area
Stabilization
Stabilization Time
Description
Time Frame
Frame Exceptions
Perimeter dikes,
swales, ditches
7 Days
None
and slopes
High Quality
Water (HOW)
7 Days
None
Zones
If slopes are 10' or
Slopes steeper
7 Days
less in length and are
than 3:1
not steeper than 2:1 ,
14 days are allowed.
Slopes 3:1 or
flatter
14 Days
7—Days for slopes
greater than 50 feet
in length
None
All other areas
14 Days
(except for
with slopes flatter
perimeters and
than 4:1
HOW Zones)
* "Extensions of time may be approved by the permitting
authority based on weather or other site —specific conditions
that make compliance impracticable." (Section II.B(2)(b))
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PERMITTING
SHADING LEGEND
RESIDENTIAL LOTS THAT ARE SUBJECT TO
LAND DISTURBANCE PERMIT IN CONJUNCTION
WITH THIS PLAN
EROSION CONTROL NOTATION KEY LEGEND
A REFERENCE LABEL FOR TYPICAL LOT EROSION
CONTROL DETAIL THAT IS MOST APPLICABLE
FOR THIS LOT (SEE DETAIL SHEET)
200'
No. Revision Date By
Designer
WR
Scale
1" = 50'
Drawn By
Date
dw
03/23/21
Checked By
lob No.
dw
2140521.12
SAN MARINO -PHASE 4
SINGLE LOT EROSION CONTROL PLAN
wiioExs .owNswr JOHNSTON mui+ry rvox1H ueourvT
Erosion Control Plan
WithersRavenel
Engineers I Planners I Surveyors
115 MacKenan Drive Cary, NC 275111 t: 919.469-33401 license #:C-M21 www.withersravenel.com
Sheet Na
2�4

NCG01-DETAIL GROUND STABILIZATION AND HANDLING PLAN
EFFECTIVE: 04/01/19
NCG01-SELF INSPECTION, RECORDKEEPING & REPORTING
EFFECTIVE: 05/17/19
n
GROUND STABILIZATION AND MATERIALS HANDLING PRACTICES FOR COMPLIANCE WITH THE NCGO1 CONSTRUCTION GENERAL PERMIT
Implementing the details and specifications on this plan sheet will result in the construction activity being considered compliant with the Ground Stabilization and
Materials Handling sections of the NCG01 Construction General Permit (Sections E and F, respectively). The permittee shall comply with the Erosion and Sediment
Control plan approved by the delegated authority having jurisdiction. All details and specifications shown on this sheet may not apply depending on site conditions
and the delegated authority having jurisdiction.
SECTION E: GROUND STABILIZATION
Required Ground Stabilization Timeframes
Site Area Description
Stabilize within this many calendar
days after ceasing land disturbance
Timeframe variations
(a) Perimeter dikes, swales,
7
None
ditches, and perimeter slopes
(b) High Quality Water (HQW) Zones
7
None
(c) Slopes steeper than 3:1
7
If slopes are 10' or less in length and are
not steeper than 2:1, 14 days are allowed
7 days for slopes greater than 50' in length and with slopes steeper than 4:1
(d) Slopes 3:1 to 4:1
14
-7 days for perimeter dikes, swales, ditches, perimeter slopes and HQW Zones
-10 days for Falls Lake Watershed
(e) Areas with slopes
-7 days for perimeter dikes, swales, ditches, perimeter slopes and HQW Zones
flatter than 4:1
14
-10 days for Falls Lake Watershed unless there is zero slope
Note: After the permanent cessation of construction activities, any areas with temporary ground stabilization shall be converted to permanent ground stabilization as
soon as practicable but in no case longer than 90 calendar days after the last land disturbing activity. Temporary ground stabilization shall be maintained in a manner
to render the surface stable against accelerated erosion until permanent ground stabilization is achieved.
Stabilize the ground sufficiently so that rain will not dislodge the soil. Use one of the techniques in the table below:
Temporary Stabilization
Permanent Stabilization
• Temporary grass seed covered with straw or
• Permanent grass seed covered with straw or
other mulches and tackifiers
other mulches and tackifiers
• Hydroseeding
• Geotextile fabrics such as permanent soil
• Rolled erosion control products with or
reinforcement matting
without temporary grass seed
• Hydroseeding
• Appropriately applied straw or other mulch
• Shrubs or other permanent plantings covered
• Plastic sheeting
with mulch
• Uniform and evenly distributed ground cover
sufficient to restrain erosion
• Structural methods such as concrete, asphalt or
retaining walls
• Rolled erosion control products with grass seed
POLYACRYLAMIDES (PAMS) AND FLOCCULANTS
1. Select flocculants that are appropriate for the soils being exposed during construction, selecting from the NC DWR List of Approved PAMS/Flocculants.
2. Apply flocculants at or before the inlets to Erosion and Sediment Control Measures.
3. Apply flocculants at the concentrations specified in the NC DWR List of Approved PAMS/Flocculants and in accordance with the manufacturer's instructions.
4. Provide ponding area for containment of treated Stormwater before discharging offsite.
5. Store flocculants in leak -proof containers that are kept under storm -resistant cover or surrounded by secondary containment structures.
EQUIPMENT AND VEHICLE MAINTENANCE
1. Maintain vehicles and equipment to prevent discharge of fluids.
2. Provide drip pans under any stored equipment.
3. Identify leaks and repair as soon as feasible, or remove leaking equipment from the project.
4. Collect all spent fluids, store in separate containers and properly dispose as hazardous waste (recycle when possible).
5. Remove leaking vehicles and construction equipment from service until the problem has been corrected.
6. Bring used fuels, lubricants, coolants, hydraulic fluids and other petroleum products to a recycling or disposal center that handles these materials.
LITTER, BUILDING MATERIAL AND LAND CLEARING WASTE
1. Never bury or burn waste. Place litter and debris in approved waste containers.
2. Provide a sufficient number and size of waste containers (e.g dumpster, trash receptacle) on site to contain construction and domestic wastes.
3. Locate waste containers at least 50 feet away from storm drain inlets and surface waters unless no other alternatives are reasonably available.
4. Locate waste containers on areas that do not receive substantial amounts of runoff from upland areas and does not drain directly to a storm drain, stream or
wetland.
5. Cover waste containers at the end of each workday and before storm events or provide secondary containment. Repair or replace damaged waste containers.
6. Anchor all lightweight items in waste containers during times of high winds.
7. Empty waste containers as needed to prevent overflow. Clean up immediately if containers overflow.
8. Dispose waste off -site at an approved disposal facility.
9. On business days, clean up and dispose of waste in designated waste containers.
Fig
10P.4 I
A
SANDBAGS (TYP.)
OR STAPLES
CLEARLY MARKED SIGNAGE
CONCRETE NOTING DEVICE (18"X24" MIN.)
WASHOUT
PLAN
SILT FENCE
1:1
SIDE SLOPE
(TYP.) -
o 1 z x
� ca
SECTION A -A
ONSITE CONCRETE WASHOUT
STRUCTURE WITH LINER
10 MIL
PLASTIC SANDBAGS (TYP.)
LINING OR STAPLES
NOTES:
1. ACTUAL LOCATION DETERMINED IN FIELD
2. THE CONCRETE WASHOUT STRUCTURES SHALL BE
MAINTAINED WHEN THE LIQUID AND/OR SOLID REACHES 75% OF
THE STRUCTURES CAPACITY.
3.CONCRETE WASHOUT STRUCTURE NEEDS TO BE CLEARY
MARKED WITH SIGNAGE NOTING DEVICE.
BELOW GRADE WASHOUT STRUCTURE
NOT TO SCALE
HIGH
COHESIV
LOW FILT
SOIL BEF
PAINT AND OTHER LIQUID WASTE
1. Do not dump paint and other liquid waste into storm drains, streams or wetlands.
2. Locate paint washouts at least 50 feet away from storm drain inlets and surface waters unless no other
alternatives are reasonably available.
3. Contain liquid wastes in a controlled area.
4. Containment must be labeled, sized and placed appropriately for the needs of site.
5. Prevent the discharge of soaps, solvents, detergents and other liquid wastes from construction sites.
PORTABLE TOILETS
1. Install portable toilets on level ground, at least 50 feet away from storm drains, streams or wetlands unless there is
no alternative reasonably available. If 50 foot offset is not attainable, provide relocation of portable toilet behind
silt fence or place on a gravel pad and surround with sand bags.
2. Provide staking or anchoring of portable toilets during periods of high winds or in high foot traffic areas.
3. Monitor portable toilets for leaking and properly dispose of any leaked material. Utilize a licensed sanitary waste
hauler to remove leaking portable toilets and replace with properly operating unit.
EARTHEN STOCKPILE MANAGEMENT
1. Show stockpile locations on plans. Locate earthen -material stockpile areas at least 50 feet away from storm drain
inlets, sediment basins, perimeter sediment controls and surface waters unless it can be shown no other
alternatives are reasonably available.
2. Protect stockpile with silt fence installed along toe of slope with a minimum offset of five feet from the toe of
stockpile.
3. Provide stable stone access point when feasible.
4. Stabilize stockpile within the timeframes provided on this sheet and in accordance with the approved plan and any
additional requirements. Soil stabilization is defined as vegetative, physical or chemical coverage techniques that
will restrain accelerated erosion on disturbed soils for temporary or permanent control needs.
CONCRETE WASHOUTS
1. Do not discharge concrete or cement slurry from the site.
2. Dispose of, or recycle settled, hardened concrete residue in accordance with local and state solid waste regulations
and at an approved facility.
3. Manage washout from mortar mixers in accordance with the above item and in addition place the mixer and
associated materials on impervious barrier and within lot perimeter silt fence.
4. Install temporary concrete washouts per local requirements, where applicable. If an alternate method or product
is to be used, contact your approval authority for review and approval. If local standard details are not available,
use one of the two types of temporary concrete washouts provided on this detail.
5. Do not use concrete washouts for dewatering or storing defective curb or sidewalk sections. Stormwater
accumulated within the washout may not be pumped into or discharged to the storm drain system or receiving
surface waters. Liquid waste must be pumped out and removed from project.
6. Locate washouts at least 50 feet from storm drain inlets and surface waters unless it can be shown that no other
alternatives are reasonably available. At a minimum, install protection of storm drain inlet(s) closest to the
washout which could receive spills or overflow.
7. Locate washouts in an easily accessible area, on level ground and install a stone entrance pad in front of the
washout. Additional controls may be required by the approving authority.
8. Install at least one sign directing concrete trucks to the washout within the project limits. Post signage on the
washout itself to identify this location.
9. Remove leavings from the washout when at approximately 75% capacity to limit overflow events. Replace the
tarp, sand bags or other temporary structural components when no longer functional. When utilizing alternative
or proprietary products, follow manufacturer's instructions.
10. At the completion of the concrete work, remove remaining leavings and dispose of in an approved disposal facility.
Fill pit, if applicable, and stabilize any disturbance caused by removal of washout.
HERBICIDES, PESTICIDES AND RODENTICIDES
1. Store and apply herbicides, pesticides and rodenticides in accordance with label restrictions.
2. Store herbicides, pesticides and rodenticides in their original containers with the label, which lists directions for
use, ingredients and first aid steps in case of accidental poisoning.
3. Do not store herbicides, pesticides and rodenticides in areas where flooding is possible or where they may spill or
leak into wells, stormwater drains, ground water or surface water. If a spill occurs, clean area immediately.
4. Do not stockpile these materials onsite.
HAZARDOUS AND TOXIC WASTE
1. Create designated hazardous waste collection areas on -site.
2. Place hazardous waste containers under cover or in secondary containment.
3. Do not store hazardous chemicals, drums or bagged materials directly on the ground.
SANDBAGS (TYP.)
OR STAPLES
CLEARLY MARKED SIGNAGE
CONCRETE NOTING DEVICE (18"X24" MIN.)
WASHOUT
PLAN
10 MIL
PLASTIC LINING
1:1 SIDE SLOPE
(TYP.)
O Z X
c%
co
SECTION B-B `
6"
SANDBAGS(TYP.)
OR STAPLES
HIGH
COHESIVE &
LOW FILTRATION
SOIL BERM
NOTES:
1. ACTUAL LOCATION DETERMINED IN FIELD
2. THE CONCRETE WASHOUT STRUCTURES SHALL BE
MAINTAINED WHEN THE LIQUID AND/OR SOLID REACHES
75% OF THE STRUCTURES CAPACITY TO PROVIDE
ADEQUATE HOLDING CAPACITY WITH A MINIMUM 12
INCHES OF FREEBOARD.
3.CONCRETE WASHOUT STRUCTURE NEEDS TO BE
CLEARY MARKED WITH SIGNAGE NOTING DEVICE.
ABOVE GRADE WASHOUT STRUCTURE
NOT TO SCALE
PART III
SELF -INSPECTION, RECORDKEEPING AND REPORTING
SECTION A: SELF -INSPECTION
Self -inspections are required during normal business hours in accordance with the table below. When adverse weather or site
conditions would cause the safety of the inspection personnel to be in jeopardy, the inspection may be delayed until the next
business day on which it is safe to perform the inspection. In addition, when a storm event of equal to or greater than 1.0 inch
occurs outside of normal business hours, the self -inspection shall be performed upon the commencement of the next business
day. Any time when inspections were delayed shall be noted in the Inspection Record.
Frequency
Inspect
(during normal
Inspection records must include:
business hours)
(1) Rain gauge
Daily
Daily rainfall amounts.
maintained in
If no daily rain gauge observations are made during weekend or
good working
holiday periods, and no individual -day rainfall information is
order
available, record the cumulative rain measurement for those un-
attended days (and this will determine if a site inspection is
needed). Days on which no rainfall occurred shall be recorded as
"zero." The permittee may use another rain -monitoring device
approved by the Division.
(2) E&SC
At least once per
1. Identification of the measures inspected,
Measures
7 calendar days
2. Date and time of the inspection,
and within 24
3. Name of the person performing the inspection,
hours of a rain
4. Indication of whether the measures were operating
event > 1.0 inch in
properly,
24 hours
5. Description of maintenance needs for the measure,
6. Description, evidence, and date of corrective actions taken.
(3) Stormwater
At least once per
1. Identification of the discharge outfalls inspected,
discharge
7 calendar days
2. Date and time of the inspection,
outfalls (SDOs)
and within 24
3. Name of the person performing the inspection,
hours of a rain
4. Evidence of indicators of stormwater pollution such as oil
event > 1.0 inch in
sheen, floating or suspended solids or discoloration,
24 hours
S. Indication of visible sediment leaving the site,
6. Description, evidence, and date of corrective actions taken.
(4) Perimeter of
At least once per
If visible sedimentation is found outside site limits, then a record
site
7 calendar days
of the following shall be made:
and within 24
1. Actions taken to clean up or stabilize the sediment that has left
hours of a rain
the site limits,
event > 1.0 inch in
2. Description, evidence, and date of corrective actions taken, and
24 hours
3. An explanation as to the actions taken to control future
releases.
(5) Streams or
At least once per
If the stream or wetland has increased visible sedimentation or a
wetlands onsite
7 calendar days
stream has visible increased turbidity from the construction
or offsite
and within 24
activity, then a record of the following shall be made:
(where
hours of a rain
1. Description, evidence and date of corrective actions taken, and
accessible)
event > 1.0 inch in
2. Records of the required reports to the appropriate Division
24 hours
Regional Office per Part III, Section C, Item (2)(a) of this permit
of this permit.
(6) Ground
After each phase
1. The phase of grading (installation of perimeter E&SC
stabilization
of grading
measures, clearing and grubbing, installation of storm
measures
drainage facilities, completion of all land -disturbing
activity, construction or redevelopment, permanent
ground cover).
2. Documentation that the required ground stabilization
measures have been provided within the required
timeframe or an assurance that they will be provided as
soon as possible.
NOTE: The rain inspection resets the required 7 calendar day inspection requirement.
PART III
SELF -INSPECTION, RECORDKEEPING AND REPORTING
SECTION B: RECORDKEEPING
1. E&SC Plan Documentation
The approved E&SC plan as well as any approved deviation shall be kept on the site. The approved E&SC plan must be kept
up-to-date throughout the coverage under this permit. The following items pertaining to the E&SC plan shall be kept onsite and
available for inspection at all times during normal business hours.
Item to Document
Documentation Requirements
(a) Each E&SC Measure has been installed
Initial and date each E&SC Measure on a copy
and does not significantly deviate from the
of the approved E&SC Plan or complete, date
locations, dimensions and relative elevations
and sign an inspection report that lists each
shown on the approved E&SC Plan.
E&SC Measure shown on the approved E&SC
Plan. This documentation is required upon the
initial installation of the E&SC Measures or if
the E&SC Measures are modified after initial
installation.
(b) A phase of grading has been completed.
Initial and date a copy of the approved E&SC
Plan or complete, date and sign an inspection
report to indicate completion ofthe
construction phase.
(c) Ground cover is located and installed
Initial and date a copy of the approved E&SC
in accordance with the approved E&SC
Plan or complete, date and sign an inspection
Plan.
report to indicate compliance with approved
ground cover specifications.
(d) The maintenance and repair
Complete, date and sign an inspection report.
requirements for all E&SC Measures
have been performed.
(e) Corrective actions have been taken
Initial and date a copy of the approved E&SC
to E&SC Measures.
Plan or complete, date and sign an inspection
report to indicate the completion of the
corrective action.
2. Additional Documentation to be Kept Onsite
In addition to the E&SC Plan documents above, the following items shall be kept on the site and available for agency
inspectors at all times during normal business hours, unless the Division provides a site -specific exemption based on unique site
conditions that make this requirement not practical:
(a) This general permit as well as the certificate of coverage, after it is received.
(b) Records of inspections made during the previous twelve months. The permittee shall record the required observations
on the Inspection Record Form provided by the Division or a similar inspection form that includes all the required
elements. Use of electronically -available records in lieu of the required paper copies will be allowed if shown to provide
equal access and utility as the hard -copy records.
3. Documentation to be Retained for Three Years
All data used to complete the e-NOI and all inspection records shall be maintained for a period of three years after project
completion and made available upon request. [40 CFR 122.41]
PART III
SELF -INSPECTION, RECORDKEEPING AND REPORTING
SECTION C: REPORTING
1. Occurrences that must be reported
Permittees shall report the following occurrences:
(a) Visible sediment deposition in a stream or wetland.
(b) Oil spills if:
• They are 25 gallons or more,
• They are less than 25 gallons but cannot be cleaned up within 24 hours,
• They cause sheen on surface waters (regardless of volume), or
• They are within 100 feet of surface waters (regardless of volume).
(a) Releases of hazardous substances in excess of reportable quantities under Section 311 of the Clean Water
Act (Ref: 40 CFR 110.3 and 40 CFR 117.3) or Section 102 of CERCLA (Ref: 40 CFR 302.4) or G.S. 143-215.85.
(b) Anticipated bypasses and unanticipated bypasses.
(c) Noncompliance with the conditions of this permit that may endanger health or the environment.
2. Reporting Timeframes and Other Requirements
After a permittee becomes aware of an occurrence that must be reported, he shall contact the appropriate
Division regional office within the timeframes and in accordance with the other requirements listed below.
Occurrences outside normal business hours may also be reported to the Division's Emergency Response
personnel at [phone].
Occurrence
Reporting Timeframes (After Discovery) and Other Requirements
(a) Visible sediment
• Within 24 hours, an oral or electronic notification.
deposition in a
. Within 7 calendar days, a report that contains a description of the
stream or wetland
sediment and actions taken to address the cause of the deposition.
Division staff may waive the requirement for a written report on a
case -by -case basis.
• If the stream is named on the INC 303(d) list as impaired for sediment -
related causes, the permittee may be required to perform additional
monitoring, inspections or apply more stringent practices if staff
determine that additional requirements are needed to assure compliance
with the federal or state impaired -waters conditions.
(b) Oil spills and
• Within 24 hours, an oral or electronic notification. The notification
release of
shall include information about the date, time, nature, volume and
hazardous
location of the spill or release.
substances per Item
1(b)-(c) above
(c) Anticipated
• A report at least ten days before the date of the bypass, if possible.
bypasses [40 CFR
The report shall include an evaluation of the anticipated quality and
122.41(m)(3)]
effect of the bypass.
(d) Unanticipated
• Within 24 hours, an oral or electronic notification.
bypasses [40 CFR
• Within 7 calendar days, a report that includes an evaluation of the
122.41(m)(3)]
quality and effect of the bypass.
(e) Noncompliance
• Within 24 hours, an oral or electronic notification.
with the conditions
• Within 7 calendar days, a report that contains a description of the
of this permit that
noncompliance, and its causes; the period of noncompliance,
may endanger
including exact dates and times, and if the noncompliance has not
health or the
been corrected, the anticipated time noncompliance is expected to
environment[40
continue; and steps taken or planned to reduce, eliminate, and
CFR 122.41(I)(7)]
prevent reoccurrence of the noncompliance. [40 CFR 122.41(I)(6).
• Division staff may waive the requirement for a written report on a
case -by -case basis.
PART II, SECTION G, ITEM (4)
DRAW DOWN OF SEDIMENT BASINS FOR MAINTENANCE OR CLOSE OUT
Sediment basins and traps that receive runoff from drainage areas of one acre or more shall use outlet
structures that withdraw water from the surface when these devices need to be drawn down for
maintenance or close out unless this is infeasible. The circumstances in which it is not feasible to
withdraw water from the surface shall be rare (for example, times with extended cold weather).
Non -surface withdrawals from sediment basins shall be allowed only when all of the following criteria
have been met:
(a) The E&SC plan authority has been provided with documentation of the non -surface withdrawal and
the specific time periods or conditions in which it will occur. The non -surface withdrawal shall not
commence until the E&SC plan authority has approved these items,
(b) The non -surface withdrawal has been reported as an anticipated bypass in accordance with Part III,
Section C, Item (2)(c) and (d) of this permit,
(c) Dewatering discharges are treated with controls to minimize discharges of pollutants from
stormwater that is removed from the sediment basin. Examples of appropriate controls include
properly sited, designed and maintained dewatering tanks, weir tanks, and filtration systems,
(d) Vegetated, upland areas of the sites or a properly designed stone pad is used to the extent feasible
at the outlet of the dewatering treatment devices described in Item (c) above,
(e) Velocity dissipation devices such as check dams, sediment traps, and riprap are provided at the
discharge points of all dewatering devices, and
(f) Sediment removed from the dewatering treatment devices described in Item (c) above is disposed
of in a manner that does not cause deposition of sediment into waters of the United States.
°pp00000001%
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°OO 0000 pWEREN NOT ISSUED ISSUEDR OR
PERMITTING
NOTE:
ALL CONSTRUCTION SHALL BE IN ACCORDANCE WITH JOHNSTON
COUNTY STANDARD SPECIFICATIONS AND DETAILS.
No. Revision Date By
Designer
WR
Scale
NTS
Drawn By
Date
dw
03/23/21
Checked By
lob No.
dw
2140521.12
SAN MARINO -PHASE 4
SINGLE LOT EROSION CONTROL PLAN
wiioExs .owNswr JOHNSTON mui+ry rvox1H ueourvT
Sediment & Erosion Control
Details & Notes (1 of 2)
WithersRavenel
Engineers I Planners I Surveyors
115 MacKenan Drive Cary, NC 275111 t: 919.469-33401 license #:C-08321 www.withersravenel.com
Sheet No.
3of 4

GENERAL NOTES - SINGLE LOT EROSION CONTROL
1. ALL INDIVIDUAL LOT EROSION CONTROL MEASURES SHALL BE INSTALLED IN
ACCORDANCE WITH JOHNSTON COUNTY SOIL EROSION AND SEDIMENTATION CONTROL
STANDARDS AND PRACTICES.
2. THE TYPICAL INDIVIDUAL LOT EROSION CONTROL DETAILS CONTAINED ON THIS PLAN
ARE PROVIDED FOR PURPOSES OF ILLUSTRATING VARIOUS TYPICAL CONDITIONS AND
SHALL BE ADAPTED AND MODIFIED AS NECESSARY IN ORDER TO ADDRESS THE
SPECIFIC CONDITIONS FOR EACH LOT. THE TYPICAL DETAILS MAY NOT ADDRESS
EACH UNIQUE SITUATION AND SHOULD BE USED AS A GENERAL GUIDELINE FOR THE
TYPES OF CONTROL MEASURES PROVIDED. SOME LOTS MAY REQUIRE COMBINING
ELEMENTS OF MORE THAN ONE TYPICAL DETAIL IN ORDER TO PROVIDE ADEQUATE
EROSION CONTROL MEASURES.
3. SILT FENCE SHALL BE INSTALLED ALONG THE LOW SIDES) OF THE LOT SUCH THAT
ALL RUNOFF FROM DISTURBED AREAS WILL BE PROTECTED BY SILT FENCE PRIOR
TO CROSSING ANY LOT LINE,
4. SILT FENCE OUTLETS SHALL BE INSTALLED AT ANY LOCATION WHERE RUNOFF LEAVES
THE PROPERTY IN A CONCENTRATED FLOW CONDITION SUCH AS SWALES, DITCHES OR
OTHER SIMILAR TOPOGRAPHIC DRAINAGE FEATURE.
5. A GRAVEL PAD AT LEAST 20' WIDE AND 50' LONG AND 4' DEEP MIN. MUST BE
INSTALLED AT THE ACCESS POINT INTO THE LOT.
6. ALL AREAS WITHIN 25' OF THE EDGE OF PAVEMENT OF THE STREET MUST BE
STABILIZED BEFORE ISSUANCE OF A CERTIFICATE OF OCCUPANCY. THE EXISTING
STREET SHOULDER AND/OR DITCH ALONG THE LOT FRONTAGE SHALL BE KEPT
FREE OF SEDIMENT AND MAINTAINED IN A MANNER SUCH THAT THE DRAINAGE
AND STABILIZATION ASPECTS OF THE PUBLIC RIGHT OF WAY ARE NOT ADVERSELY
AFFECTED BY THE CONSTRUCTION ACTIVITY ASSOCIATED WITH THE LOT DEVELOPMENT.
7. ALL DISTURBED AREAS THAT ARE SUBJECT TO EROSION AND MOVEMENT OF SEDIMENT
OFFSITE FROM THE LOT MUST BE PROVIDED WITH GROUND COVER OR OTHER
PROTECTIVE MEASURES SUFFICIENT TO RESTRAIN EROSION AND CONTROL OFF —SITE
SEDIMENTATION.
8. THE JOHNSTON COUNTY EROSION CONTROL INSPECTOR MAY REQUIRE ADDITIONAL
EROSION CONTROL MEASURES OR MODIFICATIONS TO THE EROSION CONTROL PLAN
BASED ON FIELD CONDITIONS.
PERMANENT SEEDING
SOII. PREPAAAlIOY FOR STABILIZATION OF ENTIRE SITE AFTER
STAGING ACTIVITIES ARE COMPLETE.
Proper soil preparation is necessary for successful seed germination and root
FERTILIZER
establishment. It is also necessary for establishmcnt of rooted sprigs- sod and
woody plants. Heavily compacted soils prevent air. nutrients and moisture
1-Apply 75 pounds of ground limestone per 1,000 sq. ft.
from reaclin g roots thereby retarding orpreventing plant growth. The success
2. Apply a starter type fertilizer (one that is high in phosphorus) based on the
of site stabilization and reduction of f torre maintenance are dependent on an
type of grass and planting method. Fertilizer bags have a three -number system
adequately prepared soil bed. Following are the requirements for preparation
indicating the primary aatnents, such as g-g-R or S-10-10. These nt irl
of areas to be vegetated by grassing, sprigging. sodding, and/or planting of
denote the N-P-K ratio —the percentage of each nutrient in a fertilizer the
woody plants:
percentages are always noted in the following order:
N Nitrogen for green color and growth.
General Requirements:
P,03 Phosphorus for good establishment and rooting-
• Preparation for primarylpetmanent stabilization shall nor begin until all
Kit Pocrssium to enhance pest and stress tolerance.
construction and utility work within die preparation area is complete.
Some common examples of starter type fertilizers required for a 1,000 sq.
However, it may be necessary w prepare for nurse crops prior to
& area include 40 pounds of 5-10-10, 20 p°vads of 10-20-20, or 16 pounds
completion of construction and iastaltation of utilities.
of 19-24-6. For sandy sails, typical to coastal plain and sandieillc of North
Carolina- fertilizer rates should be increased by m percent.
• A North Carolina Department of Agriculture Soils Test (or equal) shall
be obtained for all areas to be seeded, sprigged sodded or planted.
MULCHING
Recommended fertilizer and pH adjusting products shall be incorporated
into the prepared areas and backfill material per die test.
Table 6.14a
• All areas to be seededor planted shall be idled "ripped to a depth specified
on the approved plans. construction sequence and/or construction bid
list. Ripping consists of creating fissures in a Criss-cross pattern over
the entire surface area, utilmniz an implement that will not glaze the side
walls of the fissures. Site preparation that does not comply with these
docnnrents shall not be acceptable. The depth of sail preparation may
be established as a Lange based on the approval of the reviewing state or
local agency. Once tilled or ripped according to the approved plate_ all
areas are to be returned to the approved final gra& pH modifiers and/or
other soil amendments specified in the soil tests can be added during the
soil preparation procedure m as described below.
• All stones larger than three (3) inches on any side, sticks, [:Hots, acid other
extraneous materials that surface during the bed preparation shall be
removed.
Areas to be Seeded
• Till or disc the prepared areas to be seeded to a minimum depth of few
(4) inches. Remove stones larger than three (3) mches on any side- sticks,
roots and odier extraneous materials that surface_ if not incorporated
during the soil preparation process, add pH modifier and fertilizers at the
rate specified in the soil test report.
• Re -compact the area utilizing a cultipacker roller- The finished grade shall
be a smooth even soil surface with a loose, uniformly fine texture. All
ridges and depressions shall be removedandfilled to provide the approved
surface drainage. Seeding of graded areas is to be done immediately after
finished grades are obtained and seedbed preparation is completed.
.areas to be Sprigged. Sodded, and.rer Planted:
• At lee time of planting till or disc the prepared areas to a depth of four (4)
to six (6) inches below the approved finished grade. Remove all stones
larger than three (3) inches on any side.. sticks, roots and other extraneous
materials that surface. If not incorporated in the tipping process, add pH
modifier. fertilizer. and other recommended soil amendments.
• Re -compact the area utilizing a cuitipacker relief and prepare final grades
as described above. install sprigs, sod and plants as directed immediately
€t Sue ditt .. o lute M l h. t an tack cifi d
wtuaar..9 rrcaa un. anu rsppuc.aw rta rev
Material
Rate Per Acre
Quality
Notes
Organve Mulches
Straw
1-2 tons
Dry, unchopped,
Shouldcome from wheat or oats;
unweathered; avoid
spread by hand or machine; must
weeds_
be tacked down.
Wood chips
516 tons
Air dry
Treat with 121bs nitrowntton. Apply
with mulch blower, chip handler, or
by hand. Not for use in fine turf.
Wood fibber
0.5-1 inns
Also rafened to as wood cEkulosa.
May to hydroseeded. Do not use in
hot dry weather.
Bark
35 cubic yards
Alr dry, shredded or
Apply with mulch blower, chip
hamrrier-irrilled, or chips,
handler, or by hand Do not use
asplmlt tack
Cam stalks
4-6 tons
Cut or shredded in 4-6
Apply with mulch blower or by hand -
in. lingers_
Not fur usetn One Turf.
Sencea
;-3 tons
Green or dry; should
lespedeza
contain mature seed.
seed -bearing
stems
Nets and Mats'
Jute net
Cover area
Heavy, uniform, woven
Withstands waterfow. Best when
ofsinglejute yam.
used with organic mulch.
Fiberglass net
Cover area
Withstands waterfiow. Best when
used who organic mulch.
Egoism
Cover area
'Withstands watemow.
(wood fiber)
Mal
Fiberglass roving
0.5-1 tans
Continuous fibers of
Apply with a compressed air ejector.
drawn glass bound
Tack with emulsified asphalt at a
together with a non-toyac
rate of 25-35 gaU1,000 soft
agent
Chemical Stabuizers'
Aquatam
follow
Not beneficial to plant growth -
Aeros ra
p Y
manufacturer's
Curasol AK
specifications
Petheiet SB
Terra Tack
Crust 500
Gena ius 743
M-145
'Refer to Practice No- 6.30,
Grass Lfned Chanmis.
'Use of trade names does not Imply endorsement of product
a et gta g u c nip t c maar as spe e .
N'EGET-ATION NOTES
Availability of seed and plant materials is an important consideration of -LIME BE APPLIED AT 3 TONS PER ACRE
-ASPHAALL T EMULSION TO BE APPLIED AT A RATE OF 400 GALLONS PER ACRE
any construction stabili2ation effort- Thrau ,Motu North Carolina, climate -
economics. construction schedule delays and accelerations, and other factors
present difi9euh challenges in specifying the different vegetation needed for
site stabilization To help resolve this issue, vegetative stabilizatiou requires
consideration in three categories:
s Tarm diate Stabilization -purse crap varieties (Note: temporary mulching
may be wilized far immediate stabilization if outlined on the approved
plans and construction, sequence.)
• Primary Stabilization - plant varieties providing cover tip to 3 years with
a specified mwateaar ce program
■ Lang Term Stabilization - plant varieties providing protective cover with
maintenance levels selected by the owner
An adequate job in one of these areas does not guarantee success in the later
phases. Horticultural maintenance must be included in the plans.
Immediate vegetative cover will always require additional fertilization. soil
amendments, soil tests, overseeding and/or other horticultural maintenance
until primary vegetative cover is established.
SILT FENCE
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TYPICAL LOT EROSION CONTROL - DETAIL 0
NOT TO SCALE
TEMPORARY SEEDING
FOR TEMPORARY STABILIZATION BEFORE COMPLETION
OF FINAL EROSION CONTROL MEASURES
Table 6.10c
Complete grading before preparing seedbeds. and install all necessary erosion Temporary Seeding
Specifications
control practices such as, dikes waterways, and basins.. Minimize steep slopes Recommendations for Fall
because they make seedbed preparation difficult and increase the erosion
hazard. If soils become compacted during grading, loosen them to a depth of
6-3 inches using a ripper- harrow. or chisel plow.
SEEDBED PREP.-1 UTION
Good seedbed preparation is essential to successful plant establishment A
good seedbed is well -pulverized, loose, and uniform- Where hydrosect ing
methods are used. the surface may be left with a more irregular surface of
large clods and stones.
Liming—Applylime accordingtoseiltestreconimendations. Ifthe pH (acidity)
of the soil is not known an application of groenrd agricultural limestone at the
rate of 1 to 1 112 tons/acre on coarse -textured soils and 2-3 tonslacre on fine -
textured soils is usually sufficient. Apply limestone uniformly and mcotporate
into the top 4-6 inches of soil Soils with a pH of 6 or higher need not be
iimed-
Ferlflizer—Base application rates on soil tests. When these are not possible,
apply a 10-10-10 grade fertilizer at 700.1-000 lb/acre. Both fertilizer and lane
Table 6.1 Oa
should be incorporated into the top 4-6 inches of soil- If a lrydraulic seeder is
Temporary Seeding
used, do not mix seed and fertilizermore than 30 minutes before application
Recommendations for Late
winter and Early Spring
Surface roughening —If recent tillage operations have resulted in a loose
slufaoe, additional roughening may not be required, except to break up large
clods- If rainfall causes the surface to become sealed or crusted, loosen it
just prior to seeding by disking, raking, harrowing_ or other suitable methods.
Groove or furrow slopes steeper than 3-1 on the contour before seeding
(Practice 6.03, Sinface Rughening).
PL_A-VT SELECTION
Select an appropriate species or species m,xture from Table 6.10a for seeding
in late winter and early spring. Table 6.10b for suiumer. and Table 6.10c for
fall.
In the Mountains. December and January seedinas have poor chances of
success. When it is necessary to plant ar these times, use recommendations
for fall and a securely tacked mulch
SEEDING
Evenly apply seed us a cyclone seeder oadcast . drill. culti acker seeder
� ei (bl }. p
or hydroseeder Use seeding rates given in Tables 6.lOa-6-10c. Broadcast
seeding and hydricseeding are appropriate for steep slopes wbere equipment
cannot be driven- Hand broadcasting is not recommended because of the
difficulty in achieving a uniform distribution
-
Table 6.1 Ob
Small graias should be planted no more than 1 inch deep, and grasses and
Temporary Seeding
legtmhes no more that/ 112 inch Broadcast seed must be covered by taking
Recommendations for
or chain dragging, and these lightly firmed with a roller or cultipacker.
Summer
i
Hydroseeded mixtures should include a wood fiber (cellulose) mulch.
The use of an appropriate mulch will help ensure establishment under normal
and is essential to seeding success under limb site conditions
�cxoynditions.
(Practice 6.14->'.1rfLichfwg). Harsh site conditions include:
• seeding in fall for winter cover (wood fiber mulches are not considered
adequate for This use),
• slopes steeper than 3:17
• excessively hot or tits weather
• adverse soils (shallow. rocky. or high m clay or sand), and
• areas receiving concentrated flow.
If the area to be Mulched is subject to concentrated waterflow, as m channels,
anchor mulch with netting (Practice 6-14, Mulching').
i
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SILT FENCE
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RIGHT-OF-WAY LINE
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GRAVEL
CONSTRUCTION
STREET
STREET ELEV.
ENTRANCE
TYPICAL LOT EROSION CONTROL - DETAIL
NOT TO SCALE
Seeding mixture
Species Rate (Iblacre)
Rye (grain) 120
Seeding dates
Mountains —Aug. 15 - Dec. 15
Coastal Plain and Piedmont —Aug_ 15 - Dec. 30
Soil amendments
Fallow sail tests or apply 2,000 Iblacre ground agdexitural limestone
and 1,000 hiacre 10-10-10 fertilizer.
Mulch
Apply 4,000Iblacre straw. Anchor straw by tacking with asphalt, netting,
or a mulch anchoring tool. Adisk with blades set ready straight can be
used as a mulch anchoring tool.
Maintenance
Repair and refertilize damaged areas immediately. Topdress with 50
Iblacre of nitrogen In March. If it is necessary to extent temporary
cover beyond June 15, overseed with 50 Iblacre Kobe (Piedmont and
Coastal Plain) or Korean (Mountains) lespedeza in late February or
early March.
Seeding mixture
Species Rate (Iblacrel
Rye (grain) 120
Annual lespedeza (Kobe in
Piemnont and Coastal Plain,
Korean in Mountains) 50
Omit annual lespedeza when duration of temporary cover is not to
extend beyond .tune_
Seeding dates
Mountains —Above 2500 feet: Feb. 15 - May 15
Below 25DO feet: Feb. f- May 1
Piedmont —Jan. 1 - May 1
Coastal Plain_Dec. 1 -Apr 15
Soil amendments
Follow recommendations of soil tests or apply 2,000 Iblacre ground
agricultural limestone and 750 Iblacre 10-10-10 fertilizer.
Mulch
Apply 4,00016lacre straw Anchor straw by tacking with asphalt, netting,
or a mulch anchoring tool. A disk with blades set nearly straight can be
used as a mulch anchoring tool.
Maintenance
ReferWize if growth is not fully adequate. Reseed, refettilize and mulch
immediately following erosion or other damage.
Seeding mixture
Species Rate (Iblacre)
German millet 40
n the Piedmont and Mountains, a small -stemmed Sudangrass may be
substituted at a rate or 50 lb/acre.
Seeding dates
Mountains —May 15 - Aug. 15
Piedmont —May 1 -Aug- 15
Coastal Plain —Apr. 15 -Aug. 15
Soil amendments
Follow recommendations of soil tests or apply 2,OU0 lbiacre ground
agricultural limestone and 750 Iblacre 10-10-10 fertilizer.
Mulch
Apply4,W0iblacrestraw. Anchor straw by tacking with asphalt, netting,
or a mulch anchoring total. Adisk with blades set nearly straight can be
used as a mulch anchoring tool.
Maintenance
Re€ertilize if growth is not fully adequate. Reseed, referfilize and mulch
mmediately following erosion or other damage.
Maintenance Reseed and nmlch areas where seedling enrergeuce is poor. or where erosion NOTES
occurs, as soon as possible. Do not morn. Protect from traffic as much as -LIME TO BE APPLIED AT 3 TONS PER ACRE
possible. -ASPHALT EMULSION TO BE APPLIED AT A RATE OF 400 GALLONS PER ACRE
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SILT FENCE OUTLET /
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GRAVEL
CONSTRUCTION STREET
ENTRANCE
STREET ELEV.
TYPICAL LOT EROSION CONTROL - DETAIL
NOT TO SCALE
I PROPERTi' LINE_
SF :SF SF
i
SILL FENCE OUTLET
` AT LOW POINT
CIO
SILT FENCE J � I ,
CONSTRUCTION
ENTRANCE
STREET
TYPICAL LOT EROSION CONTROL - DETAIL 0
NOT TO SCALE
NOTES:
1. ENSURE THAT DRAINAGE AREA IS NO B' Oc MAX -1t
GREATER THAN 1/4 ACRE PER 100 FEET
OF FENCE. ,
2. SILT FENCE SHOULD NOT BE USED �,�� $1LT �NGE Z
AT PIPE OUTLETS OR IN AREAS OF Ivy FLOW OF WATER
CONCENTRATED FLOW (CREEKS, DITCHZII 1I 1 I 1 I1 I
LINES, SWALES ETC.) 5(0RA
�Otl SED1MESft
31
TO INCREASE STORAGE CAPACITY AND
PROLONG THE LIFE OF THE SILT FENCE, IT
IS GENERALLY ADVISABLE TO DIG A
SEDIMENT PIT IN FRONT OF YOUR SILT
FENCE WHENEVER POSSIBLE.
12 GAUGE 4"X4" OR 2"X4" WELDED WIRE
HOOKED ONTO PREFORMED CHANNELS ON
METAL POSTS.
ULTRAVIOLET RESISTANT (BLACK) MIRIFI
FA OR EQUIVALENT SECURE
' TO WIRE
W METAL CLIPS OR WIRE AT 8OFF
C NTER.
MAX. SEDIMENT STORAGE LEVEL. REMOVE
SEDIMENT WHEN THIS LEVEL IS REACHED OR
AS DIRECTED BY CONSERVATION INSPECTOR.
z
N
Steel
post
1
/ e
8%
. ----- - TSHEET RENCH,
COVER W/NOI & TAMP BACKFILL.
- - ; - - - - - - - - NATURAL GRADE
CARRY APPROX.12" OF FABRIC INTO
TRENCH
CARRY 8" OF WIRE INTO TRENCH.
METAL POSTS
8' O.C. MAX WITH STANDARD STRENGTH FBARIC
Wire 6' O.C. MAX WITH EXTRA STRENGTH FABRIC
fence
Filter. --'- - - --
fabric ll°ckfll tirtetdl N°tu rrl
arid iromct
rme'auund
•l'- � tu} IY
s4ope
at'
Up
. ram •• ���'►
m'rrt
MAINTENANCE
Inspect sed irr ent t esat least oncea week andafter each rainfall. Make any
required repaitsimntediatety-
Should the fabric of a sediment fence collapse, tear, decompose or become
Ineffective, repbce it promptly.
Remove tledimil deporum as necessary to firovide adequate stor*M vtllurne
for the next rain lead to reduce pressure on the fence. Take care to nvpid
trtulertnminptbe tcuceduringcleatmuL
Remove ail tenctng materials and unwmbk sediment deposits and bring, the
Brea to rraele and ctabthrs if after the contributing rirainaga area has laeett
properly stabiit2et
SILT FENCE FOR SMALL DRAINAGE AREA LESS THAN ONE ACRE
PROPERTY LINE_
SF SF SF
Ion �I
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I I
' SILT FE E '
wl -
RIDGE LINE J
W
w w
o' 'o
WI I ---- 103— '(h
1 HOUSE I laL
LL
IN �I
- -102
I _ 3 T
> SILT FENC
RIGHT-OF-WAY LINE
GRAVEL
CONSTRUCTION STREET STREET ELEV.
ENTRANCE
TYPICAL LOT EROSION CONTROL - DETAIL O
NOT TO SCALE
NPDES Stormwater Discharge Permit for Construction Activities (NCG01)
NCDENR/Division of Energy, Mineral and Land Resources
STABILIZATION TIMEFRAMES
(Effective Aug. 3, 2011)
SITE AREA DESCRIPTION
STABILIZATION
TIMEFRAME EXCEPTIONS
Perimeter dikes, swales, ditches, slopes
7 days
None
- High Quality Water (HQW) Zones
7 days
None
Slopes steeper than 3:1
7 days
If slopes are 10' or less in length and are
not steeper than 2:1, 14 days are allowed.
Slopes 3:1 or flatter
14 days
7 days for slopes greater than 50' in length.
All other areas with slopes flatter than 4:1
14 days
None, except for perimeters and HQW Zones.
TOP OF
MUST BE
ABOVE T
THE WM
STEEL FENCE POST
WIRE FENCE
HARDWARE CLOTH
FlASLTER OF'57
WHED STONE
3' FILTER FABRIC
ON GROUND
AND HARDWARE
LI CLOTH IN TRENCH
STEEL FENCE P R T I
SET L F 2' APART I(�_
MIN. IS' INTO SOU
GROUND
NOTES:
1. REMOVE SEDIMENT WHEN HALF OF STONE OUTLET IS COVERED.
2. REPLACE STONE AS NEEDED TO ENSURE DEWATERING.
�I \
BURY WIRE FENCE AND HARDWARE CLOTH II BURY 6. OF UPPER EDGE OF
II FILTER FABRIC IN TRENCH
u
u
SECTION VIEW
STANDARD SILT FENCE OUTLET
NOTE:
ALL CONSTRUCTION SHALL BE IN ACCORDANCE WITH JOHNSTON
COUNTY STANDARD SPECIFICATIONS AND DETAILS.
No. Revision Date By
Designer
WR
Scale
NTS
Drawn By
Date
dui
03/23/21
Checked By
lob No.
dw
2140521.12
SAN MARINO -
SINGLE LOT EROSION C
WILDERS TOWNSHIP JOHNSTON COUNTY
ASE 4
TROL PLAN
NORTH CAROLINA
Sediment & Erosion Control
Details & Notes (2 of 2)
WithersRavenel
Engineers I Planners I Surveyors
115 MacKenan Drive Cary, NC 275111 t: 919.469-33401 license #:C-08321 www.withersravenel.com
Sheet Na
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