SW6210701_Plansheet - Misc. Detail_20210721 (2)

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ONSITE CONCRETE WASHOUT SEEDING SPECIFICATIONS Pam'
GROUND STABILIZATION AND MATERIALS HANDLING PRACTICES FOR COMPLIANCE WITH THE NCG01 STRUCTIME WITH LINER CONSTRUCTION SEQUENCE
CONSTRUCTION GENERAL PERMIT EQUIPMENT AND VEHICLE MAINTENANCE } w a SEEDBED PREPARATIONt@e',
Implementing the details and specifications on this Ian sheet will result in the construction activity being ate"' o., THOROUGHLY CULTIVATE LAWN AREAS BY DISCING TO A DEPTH OF 6" AND 1) INSTALL THE TEMPORARY CONSTRUCTION ENTRANCE. x
p g p p g 1. Maintain vehicles and equipment to prevent discharge of fluids. T �„F �„ Q
considered compliant with the Ground Stabilization and Materials Handling sections of the NCG01 Construction •� ,tea O 1 crou RAKING THE SURFACE SMOOTH TO REQUIRED GRADES. APPLY 4,000 LBS. OF 2) INSTALL EROSION CONTROL MEASURES AS SHOWN ON PLANS. ®
p g 2. Provide drippans under an stored equipment. ment. tr*a �i
General Permit (Sections E and F, respectively). The permittee shall comply with the Erosion and Sediment p Y q p o O o AGRICULTURAL LIME PER ACRE AND 1,000 LBS. OF TO-10-10 OR EQUIVALENT 3) COMPLETE INSTALLATION OF SITE DRAINAGE NETWORKS AND SITE SWALES b _ W
Control Ian approved b the delegated authority having jurisdiction. All details ands specifications shown on this 3. Identify leaks and repair as soon as feasible, or remove leaking equipment from the project. A o sx>mri&.a FERTILIZER PER ACRE. WITH ASSOCIATED EROSION CONTROL PROTECTION BEFORE BEGINNING SITE _ w
p pp Y g Y g } p 4. Collect all spent fluids, store in separate containers and properly dispose as hazardous waste (recycle GRADING. 4 i z
sheet may not apply depending on site conditions and the delegated authority having jurisdiction. TEMPORARY SEEDING co
when possible). or�rrwm�L�¢ gcnaxA-A as i�wu�aw oes�m•�en 4) STRIP TOPSOIL. ..,
'°'°""°� " ,�,,,,�„®•,g, WHERE TEMPORARY SEEDING IS REQUIRED PRIOR TO SEEDING OF PERMANENT 5 GRADE SITE. �~ z
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SECTION E: GROUND STABILIZATION 5. Remove leaking vehicles and construction equipment from service until the problem has been corrected. " :11Eam=•mWfr ucun � LAWNS OR FILL SLOPES, PROCEED AS FOLLOWS: 'i l N e\ _
•., .•,.� ,•„•A .m•A•.�,• � ,.,,,lwamn N maw 6) GRASS AREAS THAT WILL NOT BE DISTURBED. i, a C)
Required Ground Stabilization
Timeframes
Stabilize within this
Site Area Description
many calendar days
Timeframe variations
after ceasing land
disturbance
(a) Perimeter dikes, swales,
ditches, and perimeter
7
None
slopes
(b) High Quality Water (HQ
) 7
None
Zones
If slopes are 10' or less in length and are
(c) Slopes steeper than 3:1
7
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
-7 days for perimeter dikes, swales, ditches,
(e) Areas with slopes flatter
perimeter slopes and HQW Zones
than 4:1
14
-10 days for Falls Lake Watershed unless there is zer
slope
6. Bring used fuels, lubricants, coolants, hydraulic flulds and other petroleum products to a recycling or
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a& °°•"" ®'"'°"""°'°""�
7) INSTALL UTILITIES. �/ O
AUG. 15TH-MAR. 1ST SOW RYE GRAIN AT THE RATE OF w
disposal
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•••• �••
120 LBS. PER ACRE. 7) PLACE BASE -COURSE.
MAR. 1ST-AUG. 15TH SOW GRAIN MILLET AT THE RATE 8) SEED AND MULCH ALL AREAS TO PROVIDE PERMANENT GROUNDCOVER V f! 0
�� S„MRE
MOVE GRAM
OF 40 LBS. PER ACRE. WITHIN 14 WORKING DAYS FOLLOWING COMPLETION OF ANY PHASE OF
GRADING, AND WITHIN 14 WORKING DAYS OR 90 CALENDAR DAYS, WHICHEVER
LITTER, BUILDING MATERIAL AND LAND CLEARING WASTE
PERMANENT SEEDING PERIOD IS SHORTER, FOLLOWING COMPLETION OF CONSTRUCTION OR Q
1. Never bury or burn waste. Place litter and debris in approved waste containers.
DEVELOPMENT.
SEASON VARIETY RATE(LBS,/ACRE).
2. Provide a sufficient number and size of waste containers (e.g dumpster, trash receptacle) on site to
AUG 15 - NOV 1ST KOREAN LESPEDEZA 50 9) MAINTAIN ALL TEMPORARY MEASURES UNTIL PERMANENT GROUND COVER IS
ESTABLISHED.
contain construction and domestic wastes.
OR KOBE LESPEDEZA 50
TALL FESCUE 60 10) NO SEDIMENT OR EROSION CONTROL MEASURES ARE TO BE REMOVED
3. Locate waste containers at least 50 feet away from storm drain inlets and surface waters unless no other
WITHOUT THE APPROVAL OF AN NCDEQ INSPECTOR. ^ o 0
alternatives are reasonably available.
NOV 15 - MARCH 1ST TALL FESCUE 120 P-1
4. Locate waste containers on areas that do not receive substantial amounts of runoff from upland areas and
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AND ABRUZZI RYE 25 r. U o In
does notdrain direct) to a storm drain, stream or wetland.
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NOTIFICATION OF COMBINED SELF -MONITORING AND SELF -INSPECTION FORM: Z Q
MARCH 1 - APRIL 15 TALL FESCUE 120
5. Cover waste containers at the end of each workday and before storm events or provide secondary
CONCRETE WASHOUTS
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APRIL 15 -JUNE 30 HULLED COMMON BERMUDA 12 THE SEDIMENTATION POLLUTION CONTROL ACT WAS AMENDED IN 2006 TO REQUIRE THAT PERSONS 'Cocontainment.
Repair or replace damaged waste containers.
1. Do not discharge concrete or cement slurry
2. Dispose of, or recycle settled, hardened concrete
from the site.
residue in accordance with local and state solid waste
JUNE 30 - AUG 15 TALL FESCUE 60 RESPONSIBLE FOR LAND -DISTURBING ACTIVITIES INSPECT A PROJECT AFTER EACH PHASE OF THE �N i
AND BROWNTOP MILLET 25 '� o
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6. Anchor all lightweight items in waste containers during times of high winds.
PROJECT TO MAKE SURE THAT THE APPROVED EROSION AND SEDIMENTATION CONTROL PLAN IS BEING W ;�
7. Empty waste containers as needed to prevent overflow. Clean up immediately if containers overflow.
regulations and at an approved facility.
3. Manage washout from mortar mixers in accordance
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with the above item and in addition place the mixer
FOLLOWED. RULES DETAILING THE DOCUMENTATION OF THESE INSPECTIONS TOOK EFFECT OCTOBER 1, W w olu
MULCHING 2010. Z o
8. Dispose waste off site at an approved disposal facility.
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and associated materials on impervious bprrier
and within lot perimeter silt fence.
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IMMEDIATELY AFTER SEED AREA SOWN, MULCH THE ENTIRE AREA EVENLY WITH n r, ^
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9. On business days, clean up and dispose of waste in designated waste containers.
4. Install temporary concrete washouts per local
product is to be used, Contact your appro
,
requirements, where applicable. If an alternate method or
al authority for review and approval. If local standard details
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A LAYER OF WHEAT STRAW TO PROTECT AREA FROM EROSION. MULCH TO BE TO SIMPLIFY DOCUMENTATION OF SELF -INSPECTION REPORTS AND NPDES SELF -MONITORING REPORTS, U Z 'o
APPLIED AT A RATE OF 75-100 LBS. PER 1000 SQUARE FEET. 14
DWQ AND DEMLR DEVELOPED A COMBINED FORM. THE SELF -INSPECTION PROGRAM IS SEPARATE FROM ranallw >6, u .
THE WEEKLY SELF -MONITORING PROGRAM OF THE NPDES STORMWATER PERMIT FOR CONSTRUCTION Q (Dhf) 3 ° � w
SECURING MULCH: on
PAINT AND OTHER LIQUID WASTE
are not available, use one of the two typ
of temporary concrete washouts provided on this detail.
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'ring
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ACTIVITIES. THE FOCUS OF THE SELF -INSPECTION REPORT IS THE INSTALLATION AND MAINTENANCE OF
THE MULCH SHALL BE HELD IN PLACE BY EMULSIFIED ASPHALT BINDER ON Z •ao� .� Z
1. Do not dump paint and other liquid waste into storm drains, streams or wetlands.
5. Do not use concrete washouts for dewat
or storing defective curb or sidewalk sections. Stormwater
EROSION AND SEDIMENTATION CONTROL MEASURES ACCORDING TO THE APPROVED PLAN. THE P x
SLOPES 2 TO 1 OR STEEPER, OR AS REQUIRED. APPLY ASPHALT AT 0.10 E .v
INSPECTIONS SHOULD BE CONDUCTED AFTER EACH PHASE OF THE PROJECT, AND CONTINUED UNTIL
accumulated within the washout may no
must
be pumped into or discharged to the storm drain system or
GALLON PER SQUARE YARD. IN HEAVY TRAFFIC AREAS USE TYPE "RS" OR IU
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2. Locate paint washouts at least 50 feet away from storm drain inlets and surface waters unless no other
receiving surface waters. li Liquid waste
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be um ed out and removed from project. ect.
pumped p 1
PERMANENT GROUND COVER IS ESTABLISHED. THE FORM CAN BE ACCESSED AT: o
"CRS" TO MINIMIZE REMOVAL OF TACK COAT. SYNTHETIC BINDERS MAY BE m c
alternatives are reasonably available.
3. Contain liquid wastes in a controlled area.
6. Locate washouts at least 50 feet from storm
drain inlets and surface waters unless it can be shown that
POR :HL.NCDENR.ORG�WEB�LR�EROSION HTTPTA
USED AS RECOMMENDED BY THE MANUFACTURER TO ANCHOR THE MULCH. d-
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Note: After the permanent cessation of construction activities, any areas with temporary ground stabilization shall
il" npracticablebu in no ca a longer than calendar d
be converted to permanent ground stabilization as soon as t s g 90 days
4. Containment must be labeled sized and laced appropriately for the needs of site.
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no other alternatives are reasonably available.
closest to the washout which could receive
At a minimum, install protection of storm drain inlet(s)
spills or overflow.
TEMPORARY CHANNEL LININGS IF REQUIRED SHALL BE INSTALLED IN AREAS AS IF YOU HAVE QUESTIONS OR CANNOT ACCESS THE FORM, PLEASE CONTACT THE FAYETTEVILLE REGIONAL 0
after the last land disturbingactivity. Temporary round stabilization shall be maintained in a manner render
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5. Prevent the discharge of soaps, solvents detergents and other liquid wastes from constructiansites,
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7. Locate washouts in an easily accessible area,
on level ground and install a stone entrance pad in front of
SHOWN ON PLANS, OR AS REQUIRED TO PREVENT EROSION. LININGS AREA TO OFFICE AT [phone].
BE LEFT IN PLACE THROUGHOUT PERMANENT SEEDING PROCEDURE.
the surface stable against accelerated erosion until permanent ground stabilization is achieved.
the washout. Additional controls may be
required by the approving authority.
NOTE: A SEPARATE EROSION CONTROL PERMIT WILL BE REQUIRED FOR EACH INDIVIDUAL LOT PRIOR TO 0
8. Install at least one sign directing concrete
trucks to the washout within the project limits. Post s]gnage on
MAINTENANCE LAND DISTURBANCE.
I. TEMPORARY SEEDING: CZ
GROUND STABILIZATION SPECIFICATION
Stabilize the ground sufficiently so that rain will not dislodge the soil. Use one of the techniques in the table
the washout itself to identify this locatio
9. Remove leavings from the washout when
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at approximately 75% capacity to limit overflow events.
a)
RESEED AND MULCH AREAS WHERE SEEDLING EMERGENCE IS POOR, OR NOTE: NO SURFACE WATERS, WETLANDS, OR FLOOD ZONES ARE TO BE DISTURBED DURING o
WHERE EROSION OCCURS, AS SOON AS POSSIBLE. DO NOT MOW. 0
below
PORTABLE TOILETS
Replace the tarp, sand bags or other tem
orary structural components when no longer functional. When
CONSTRUCTION.
PROTECT FROM TRAFFIC AS MUCH AS POSSIBLE. w
.``i'emtaslrat'tr�tbbtltxatido _..... ..„
... ' .. ...:.,'; Pet`rolt�oiStat3flzatlart, -, •..•,:,
• 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
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1. Install ortable toilets on level round at least 50 feet awa from storm drains streams or wetlands unless
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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.
utilizing alternative or proprietary produc
10. At the completion the concrete work, I
disposal facility. Fill pit, if applicable, and
s, follow manufacturer's instructions.
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amove remaining leavings and dispose of in an approved
stabilize any disturbance caused by removal of washout.
II. PERMANENT SEEDING:
GENERALLY, A STAND OF VEGETATION CANNOT BE DETERMINED TO BE PURSUANT TO G.S. 143-215.1 ALL PERIMETER DIKES, SWALES,
FULLY ESTABLISHED UNTIL SOIL COVER HAS BEEN MAINTAINED FOR ONE DITCHES, PERIMETER SLOPES AND ALL SLOPES GREATER THAN 3
FULL YEAR FROM PLANTING. INSPECT SEEDED AREAS FOR FAILURE AND HORIZONTAL TO 1 VERTICAL (3:1) SHALL BE PROVIDED
MAKE NECESSARY REPAIRS AND RESEEDINGS WITHIN THE SAME SEASON, IF TEMPORARY OR PERMANENT STABILIZATION WITH GROUND COVER
POSSIBLE. AS SOON AS PRACTICABLE BUT IN ANY EVENT WITHIN 7
CALENDAR DAYS FROM THE LAST LAND DISTURBING ACTIVITY.
RESEEDING --IF A STAND HAS INADEQUATE COVER, RE-EVALUATE CHOICE
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EARTHEN STOCKPILE MANAGEMENT
HERBICIDES, PESTICIDES AND RODENTICIDES
d " "d d
OF PLANT MATERIALS AND QUANTITIES OF LIME AND FERTILIZER.
RE ---ESTABLISH THE STAND AFTER SEEDBED PREPARATION OR OVER -SEED 1) Ground Stabilization*
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E
1 S d I h b" "d ti
tore an app y er Icl es, pes ces an ro enlist es in accor ance with label restrictions. THE STAND. CONSIDER SEEDING TEMPORARY, ANNUAL SPECIES IF THE
1. Show stockpile locations on plans. Locate earthen -material stockpile areas at least 50 feet away from 2. Store herbicides pesticides and rodentici es in their original containers with the label which lists TIME OF YEAR IS NOT APPROPRIATE FOR PERMANENT SEEDING.
storm drain inlets, sediment basins, perimeter sediment controls and surface waters unless it can be ' p
directions for use, ingredients and first aidsteps in case of accidental poisoning.
shown no other alternatives are reasonably available. NOTE: Pursuant to G.S. 113A-57(2), the angle for graded slopes and fills
i lJ 1 r �AT1Ol V �I 1V1ATE1tlALS 11A1 �I V
3. Do not store herbicides, pesticides and ro
2. Protect stockpile with silt fence installed along toe of slope with a minimum offset of five feet from the toe
may spill or leak into wells, stormwater drains,
enticides in areas where flooding is possible or where they
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ground water or surface water. If a spill occurs, clean area
shall be no greater than the angle that can be retained b vegetative cover
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or other adequate erosion -control devices or structures. In any event, slopes
POLYACRYLAMIDES (PAMS) AND FLOCCULANTS
of stockpile. immediately.
3. Provide stable stone access point when feasible.
4. Do not stockpile these materials onsite.
left exposed will, within 14 calendar days of completion of any phase of
grading be planted or otherwise provided with temporary or permanent ground
1. Select flocculants that areappropriate for the soils being exposed during construction, selecting from the
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4. Stabilize stockpile within the timeframes provided on this sheet and in accordance with the approved plan
cover, devices, or structures sufficient to restrain erosion. Pursuant to G.S.
NCDWR List of Approved PAMS/Foocculants.
and any additional requirements. Soil stabilization is defined as vegetative, physical or chemical coverage
113A-57(3), provisions for permanent ground cover sufficient to restrain
2. Apply flocculants at or before the inlets to Erosion and Sediment Control Measures.
techniques that will restrain accelerated erosion on disturbed soils for temporary or permanent control
HAZARDOUS AND TOXIC WASTE
erosion must be accomplished for all disturbed areas within 14 working days
or 90 calendar days (whichever is shorter) following completion of construction
3. Apply flocculants at the concentrations specified in the NCDWR List of Approved PAMS/flocculants and in
needs.
1. Create designated hazardous waste collection
areas on -site.
or development.
with instructions.
accordance with the manufacturer's instructions.
accordance
2. Place hazardous waste containers under cover
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or in secondary containment.
before discharging
4. Provide area for containment treated Stormwater before discharging offsite.
VEGETATION MANTAINANCE
5. Store flocculants in leakproof containers that are kept under saver or surrounded by
3. Do not store hazardous chemicals, drums
r bagged materials directly on the ground.
IF A STAND HAS INADEQUATE COVER, RE-EVALUATE CHOICE OF PLANT
MATERIALS AND QUANTITIES OF LIME AND FERTILIZER. RE-ESTABLISH THE
secondary containment structures.
STAND AFTER SEEDBED PREPARATION OR OVER -SEED THE STAND. CONSIDER
SEEDING TEMPORARY, ANNUAL SPECIES IF THE TIME OF THE YEAR IS NOT
APPROPRIATE FOR PERMANENT SEEDING.
R TT T % T XT NT u NT T �T
D STAT1 TT T
NCGO GPO Al D DL11 G
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EFFECTIVE • 04/0 l / 19
Site Area
Stabilization
Stabilization Time
Description
Time Frame
Frame Exceptions
• Perimeter dikes,
wal ditches
s s e,
7 days
y
None
and slopes
• High Quality
Water (HQW)
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
7-days for slopes
flatter
14 days
greater than 50 feet
in length
• All other areas
None
(except for
with slopes flatter
14 days
perimeters and
than 4:1
HOW Zones
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* "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(2Xb))
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PART III
PART III
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SELF -INSPECTION, RECORDKEEPING AND REPORTING
SELF -INSPECTION, RECORDKEEPING AND REPORTING
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PART III
a)
SECTION A: SELF -INSPECTION
SECTION B: RECORDKEEPING
SELF -INSPECTION, F
ECORDKEEPING AND REPORTING
Self -inspections are required during normal business hours in accordance with the table below. When adverse
1. E&SC Plan Documentation
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weather or site conditions would cause the safety of the inspection personnel to be in jeopardy, the inspection
The approved E&SC plan as well as any approved deviation shall be kept on the site. The approved E&SC plan
SECTION C: REPORTING
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may be delayed until the next business day on which it is safe to perform the inspection. In addition, when a
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must be kept up-to-date throughout the coverage under this permit. The following items pertaining to the E&SC
1. Occurrences that Must be Reported
storm event of equal to or greater than 1.0 inch occurs outside of normal business hours, the self -inspection shall
plan shall be kept on site and available for inspection at all times during normal business hours.
Permittees shall report the following occurrence
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
5. 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.
_
(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
facilities completion of all land -disturbing
drainage p g
activity, construction or redevelopment, permanent
ground cover).
2. Documentation that the required ground stabilization
measures have been provided within the required
Tmeframe or an assurance that they will be provided as
soon as possible.
Item to Document,
I 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 £&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 of the
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&SG
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 on Site
In addition to the E&SC plan documents above, the following items shall be kept on the
site and available for 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 notpractical:
(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
vi b the Division or a similar inspection form that
observations on the Inspection Record Form provided y p
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
hall maintained fora period
All data used to complete the a-N01 and all inspectionrecords s be t p
NOTE: The rain inspection resets the required 7 calendar day inspection requirement. of three years after project completion and made available upon request. [40 CFR 122.41]
PART 11, 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,
(a) Visible sediment deposition in a stream or ( etland.
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(b) Oil spills if:
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• They are 25 gallons or more,
cf) 0:�
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• They are less than 25 gallons but cannot
a cleaned up within 24 hours,
• They cause sheen on surface waters (reg
rdless of volume), or
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• They are within 100 feet of surface wate
s (regardless of volume).
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(c) Releases of hazardous substances in excess of
reportable quantities under Section 311 of the Clean
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Water Act (Ref: 40 CFR 110.3 and 40 CFR 117.3) or Section
102 of CERCLA (Ref: 40 CFR 302.4) or G.5.143-215.85.
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(d) Anticipated bypasses and unanticipated bypasses.
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(e) Noncompliance with the conditions of this
ermit that may endanger health or the environment.
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2. Reporting Timeframes and Other Requirements)
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After a permittee becomes aware of an occurrence
that must be reported, he shall contact the appropriate
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Division regional office within the timeframes and
in accordance with the other requirements listed below.
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Occurrences outside normal business hours maylalso
be reported to the Department's Environmental Emergency
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Center personnel at [phone].
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Occurrence
Reporting Timeframles
(After Discovery) and Other Requirements
(a) Visible sediment
• Within 24 hours,
_
in oral or electronic notification.
deposition in a
• Within 7 calenda
days, a report that contains a description of the
stream or wetland
sediment and actyons
taken to address the cause of the deposition.
Division staff may
waive the requirement for a written report on a
case -by -case bast
.
• If the stream is named
on the NC 303fd) 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 Oils ills and
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• Within 24 hours
n oral or electronic
e ronic 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
en 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)]
(d) Unanticipated
effect of the bypass.
• Within 24 hours,
in 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 dotes
and times, and if the noncompliance has not
health or the
been corrected, t�e
anticipated time noncompliance is expected to
environment[40
continue; and ste
s taken or planned to reduce, eliminate, and
CFR 122.41(I)(7)]
prevent reoccurr
nce of the noncompliance. [40 CFR 122.41(i)(6).
• Division staff ma
waive the requirement for a written report on a
case -by -case bast
.
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(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, EE PROJECT: 5058 '-
(e) Velocity dissipation devices such as check dams, sediment traps, and riprap are provided at the discharge points of all dewatering devices, and w
(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. S ® 3
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EEPIN REPORTING EFFECTIVE: 04/01/19 of 4
NCGO1 SELF INSPECTION, RECORDK G AND
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