SW5210603_Plansheet - Misc. Detail_20210817 (3)

PART III
PART III
PART III
SELF-INSPECTION, RECORDKEEPING AND REPORTING
SELF-INSPECTION, RECORDKEEPING AND REPORTING
SELF-INSPECTION, RECORDKEEPING AND REPORTING
SECTION A: SELF-INSPECTION
SECTION B: RECORDKEEPING
SECTION C: REPORTING
Self-inspections are required during normal business hours in accordance with the table
1.E&SC Plan Documentation
1.Occurrences that Must be Reported
below. When adverse weather or site conditions would cause the safety of the inspection
The approved E&SC plan as well as any approved deviation shall be kept on the site. The
Permittees shall report the following occurrences:
personnel to be in jeopardy, the inspection may be delayed until the next business day on
approved E&SC plan must be kept up-to-date throughout the coverage under this permit.
(a)Visible sediment deposition in a stream or wetland.
which it is safe to perform the inspection. In addition, when a storm event of equal to or
The following items pertaining to the E&SC plan shall be kept on site and available for
greater than 1.0 inch occurs outside of normal business hours, the self-inspection shall be
inspection at all times during normal business hours.
(b)Oil spills if:
performed upon the commencement of the next business day. Any time when inspections
were delayed shall be noted in the Inspection Record.
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).
(c) 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.
(d)Anticipated bypasses and unanticipated bypasses.
(e)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 Department's Environmental Emergency Center personnel at (800)
858-0368.
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 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.
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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.\[40 CFR 122.41\]
NOTE: The rain inspection resets the required 7 calendar day inspection requirement.
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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.
EFFECTIVE: 04/01/19
NCG01 SELF-INSPECTION, RECORDKEEPING AND REPORTING
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