NCS000335_DOD SJAFB Permit Extension_20210331

STATE of NORTH CAROLINA
DEPARTMENT of ENVIRONMENT QUALITY
DIVISION of ENERGY, MINERAL, and LAND RESOURCES

PERMIT NO. NCS000335
TO DISCHARGE STORMWATER UNDER THE
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM
In compliance with applicable law, including the regulations promulgated and adopted by the North
Carolina Environmental Management Commission, and the Federal Water Pollution Control Act, as
amended,

Seymour Johnson Air Force Base, North Carolina, Wayne County

is hereby authorized to discharge stormwater and continue operation of oil water separators not associated
with wastewater discharges from facilities to receiving waters designated as Neuse River and Stoney
Creek, Hospital Creeks, Burge Ditch, Mayfield's Ditch (tributary to Stoney Creek and Burge Ditch), and
Prison Ditch, and Golf Course Ditch and Golf Course Lake (tributary to Burge Ditch), and Bulk Fuels
Ditch (tributary to Prison Ditch) in the Neuse River Basin in accordance with the discharge limitations,
monitoring requirements, and other conditions set forth in Parts I, II, III, IV, V, VI, VII and VIII hereof.

This permit shall become effective April 1, 2021.

This permit shall expire at midnight on September 30, 2021.

Signed this day March 31, 2021.

for Brian Wrenn, Director
Division of Energy, Mineral and Land Resources
By the Authority of the Environmental Management Commission

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PERMIT NO. NCS000335
TABLE OF CONTENTS

PARTI
PART II
PERMIT COVERAGE

FINAL LIMITATIONS AND CONTROLS FOR PERMITTED DISCHARGES
SECTION A: PROGRAM IMPLEMENTATION

SECTION B: PUBLIC EDUCATION AND OUTREACH

SECTION C: PUBLIC INVOLVEMENT AND PARTICIPATION
SECTION D: ILLICIT DISCHARGE DETECTION AND ELIMINATION
SECTION E: CONSTRUCTION SITE RUNOFF CONTROLS
SECTION F: POST-CONSTRUCTION SITE RUNOFF CONTROLS
SECTION G: POLLUTION PREVENTION AND GOOD HOUSEKEEPING
SECTION H: INDUSTRIAL ACTIVITIES
SECTION I: OIL WATER SEPARATORS

SECTION J: MONITORING REQUIREMENTS

SECTION K: IMPAIRED WATERS and TOTAL MAXIMUM DAILY LOADS (TMDLs)

PART III
PARTIV
PARTV
PROGRAM ASSESSMENT

REPORTING AND RECORD KEEPING REQUIREMENTS
STANDARD CONDITIONS
SECTION A: COMPLIANCE AND LIABILITY

SECTION B: OPERATION AND MAINTENANCE OF POLLUTION CONTROLS

SECTION C: MONITORING AND RECORDS

PART VI LIMITATIONS REOPENER

PART VII ADMINISTERING AND COMPLIANCE MONITORING FEE
REQUIREMENTS

PART VIII DEFINITIONS

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PERMIT NO. NCS000335
Part I Page 1 of 2

PARTI PERMIT COVERAGE

1. During the period beginning on the effective date of the permit and lasting until expiration,
Seymour Johnson Air Force Base, herein referred to as Seymour Johnson AFB, is authorized to
discharge stormwater from the storm drainage system and continue operation of oil water
separators not associated with wastewater discharges to receiving waters designated as Neuse
River and Stoney Creek, Hospital Creeks, Burge Ditch, Mayfield's Ditch (tributary to Stoney
Creek and Burge Ditch), and Prison Ditch, and Golf Course Ditch and Golf Course Lake
(tributary to Burge Ditch), and Bulk Fuels Ditch (tributary to Prison Ditch) in the Neuse River
Basin. Such discharge will be controlled, limited and monitored in accordance with Seymour
Johnson AFB's Comprehensive Stormwater Management Program Plan, herein referred to as the
Stormwater Plan. The Stormwater Plan must detail Seymour Johnson AFB's stormwater
management program for the five-year term of the stormwater permit including, for each of the
measure identified in the permit, a narrative description of the program, a table that identifies
each best management practice (BMP) used, the frequency of the BMP, the measurable goals for
each BMP, the implementation schedule, funding and the responsible person or position for
implementation, title and responsibilities for implementing this permit. If major modifications are
proposed to the Stormwater Plan, the Division will be notified of the reasons and justifications for
these changes. The Division may comment on these changes as deemed necessary to assure
appropriate implementation of the Stormwater Plan. No provisions of this permit shall be
interpreted as or constitute a commitment that Seymour Johnson AFB will obligate or pay funds
in contravention of the Anti-Deficiency Act, 31 U.S.C. Section 1341.

2. All discharges authorized herein shall be lawfully managed in accordance with the terms and
conditions of this permit. Any other point source discharge to surface waters of the state is
prohibited unless it is an allowable non-stormwater discharge or is covered by another permit,
authorization, or approval.

3. This permit does not relieve Seymour Johnson AFB from responsibility for compliance with any
other applicable federal, state, or local law, rule, standard, ordinance, order, judgment, or decree.

4. This permit covers current and future activities associated with the discharge of stormwater from
the Seymour Johnson AFB.

5. Under the authority of Section 402(p) of the Clean Water Act and implementing regulations 40
CFR Part 122, 123 and 124, North Carolina General Statutes 143-215.1 and Session Law 2006-
246 and in accordance with the approved Stormwater Plan, all provisions contained and
referenced in the Stormwater Plan are enforceable parts of this permit. Seymour Johnson AFB
will develop and implement its approved Stormwater Plan in accordance with Section
402(p)(3)(B) of the Clean Water Act, provisions outlined by the Director, and the provisions of
this permit.

6. The permit requires the development and proper implementation of the Stormwater Plan. The
purpose of the Stormwater Plan is to reduce the discharge of pollutants from Seymour Johnson
AFB to the maximum extent practicable, to protect water quality, and to satisfy the applicable
water quality requirements of the Clean Water Act. Implementation of best management practices
consistent with the provisions of the Stormwater Plan constitutes compliance with the standard of
reducing pollutants to the maximum extent practicable. Successive iterations of the Stormwater
Plan and other components of this permit will be driven by the objective of assuring that
PERMIT NO. NCS000335
Part I Page 2 of 2

discharges do not cause or contribute to the violation of water quality standards, through the
expansion and tailoring of management measures within the scope of the Stormwater Plan.

7. The permit authorizes the point source discharge of stormwater runoff from Seymour Johnson
AFB. In addition, discharges of non-stormwater are also authorized through the MS4 if such
discharges are:

(a) Permitted by, and in compliance with, another NPDES discharge permit including
discharges of process and non-process wastewater, and stormwater associated with
industrial activity; or

(b) Determined to be incidental non-stormwater flows that do not significantly impact water
quality and may include:

water line flushing;
landscape irrigation;
diverted stream flows ;
rising groundwaters;
uncontaminated groundwater infiltration;
uncontaminated pumped groundwater;
discharges from potable water sources;
foundation drains;
air conditioning condensate (commercial/residential);
irrigation water;
sprmgs;
water from crawl space pumps;
footing drains;
lawn watering;
residential and charity car washing;
flows from riparian habitats and wetlands;
dechlorinated swimming pool discharges;
street wash water;
flows from emergency fire fighting:
■ releases of clean waters from hydrostatic testing

The Division may require that non-stormwater flows of this type be controlled by
Seymour Johnson AFB' s Stormwater Plan.
PERMIT NO. NCS000335
Part II Page 1 of 15

PART II FINAL LIMITATIONS AND CONTROLS FOR PERMITTED DISCHARGES
SECTION A: PROGRAM IMPLEMENTATION
Seymour Johnson AFB will implement, manage and oversee all provisions of its Stormwater Plan to reduce
pollutants discharged from Seymour Johnson AFB. This includes, but is not limited to, the following areas:

1. Seymour Johnson AFB will develop and maintain a Stormwater Plan with the authority to
implement all provisions of the Stormwater Plan. Seymour Johnson AFB, will keep the Division
advised of the status of development of appropriate authorities and will pursue these authorities in
accordance with the schedule outlined in the Stormwater Plan. If major modifications are
proposed to the Stormwater Plan, the Division will be notified the reasons and justifications for
those changes. The Division may comment on modifications as deemed necessary to assure
appropriate implementation of the Stormwater Plan.

2. Seymour Johnson AFB's Stormwater Plan will be implemented and managed such that the
discharge of pollutants from Seymour Johnson AFB is reduced to the maximum extent
practicable. It is anticipated that in order to meet this provision, implementation of the
Stormwater Plan will occur with emphasis given to priority areas and to management measures
and programs that are most effective and efficient at varying stages of the plan's implementation.

3. Seymour Johnson AFB will maintain adequate funding and staffing to implement and manage the
provisions of the Stormwater Plan.

4. Seymour Johnson AFB will implement programs to address the contribution of pollutants to the
storm drainage system from industrial areas including planning, monitoring, education, and
operation and maintenance activities.

5. Seymour Johnson AFB will implement the components of the Stormwater Plan to prohibit, to the
maximum extent practicable, illicit connections, spills and illegal dumping.

6. Seymour Johnson AFB will implement provisions of the Stormwater Plan as appropriate to
monitor and assess the performance of the various management measures that are a part of the
Stormwater Plan and of this permit.

7. Seymour Johnson AFB will implement appropriate education, training, outreach, and public
involvement programs to support the objectives of this stormwater discharge permit and the
Stormwater Plan.

8. Seymour Johnson AFB will implement a program to reduce pollution from construction site
runoff as described in the Stormwater Plan and in accordance with this permit.

9. Seymour Johnson AFB will implement a monitoring program as described herein. Monitoring
will be used to assess the effectiveness of program components and modify program components
as necessary.
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SECTION B: PUBLIC EDUCATION AND OUTREACH

1. Objectives for Public Education and Outreach

Distribute educational materials to the community or conduct equivalent outreach
activities about the impacts of storm water discharges on water bodies and the steps that
the public can take to reduce pollutants in storm water runoff.

2. BMPs for Public Education and Outreach

Seymour Johnson AFB shall implement the following BMPs to meet the objectives of the Public
Education and Outreach Program.

BMP Measurable Goals
(a) Identify Goals and
Objectives
Defined goals and objectives of the Local Public Education and
Outreach Program based on at least three high priority community
wide issues.
(b) Identify target pollutants
and/or stressors
Seymour Johnson AFB shall maintain a description of the target
pollutants and/or stressors and likely sources.
(c) Identify target audiences Seymour Johnson AFB shall identify, assess annually and update as
necessary target audiences likely to have significant storm water
impacts and why they were selected.
(d) Identify residential and
industrial/commercial
issues
Seymour Johnson AFB shall identify and describe issues, such as
specific pollutants, the sources of those pollutants, impacts on biology,
and the physical attributes of stormwater runoff, in their
education/outreach program. A minimum of three residential and three
industrial/commercial issues should be targeted as part of the
education/outreach program.
(e) Identify and describe
watersheds in need of
protection and the issues
that may threaten the
quality of these waters
Where applicable, the education/outreach program shall identify and
describe watersheds in need of protection and the issues that may
threaten the quality of these waters.
(f) Informational Web Site Seymour Johnson AFB shall promote and maintain, assess and update
as necessary an internet web site.
(g) Distribute public
education materials to
identified target
audiences and user
groups. For example,
schools, homeowners,
and/or businesses.
Seymour Johnson AFB shall distribute , assess and update as necessary
stormwater educational material to appropriate target groups in such a
way that is designed to convey the program's message to the target
audience each year. Instead of developing its own materials, Seymour
Johnson AFB may rely on Public Education and Outreach materials
supplied by the state, and/or other entities through a cooperative
agreement, as available, when implementing its own program.
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Part II Page 3 of 15

BMP Measurable Goals
(h) Maintain Hotlin e/Help
line
Seymour Johnson AFB shall promote and maintain a stormwater
hotline/helpline. Seymour Johnson AFB may utilize an existing
hotline/helpline so long as it also promotes stormwater concerns or
may train staff to transfer calls to the stormwater administrator.
(i) Implement a Public
Education and Outreach
Program.
Seymour Johnson AFB's outreach program shall include a
combination of approaches that are effective at reaching the identified
target audiences based on data and information collected by Seymour
Johnson AFB. For each media, event or activity, including those
elements implemented locally or through a cooperative agreement
measure and record the extent of exposure.
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SECTION C: PUBLIC INVOLVEMENT AND PARTICIPATION

1. Objectives for Public Involvement and Participation

Comply with State and local public notice requirements when implementing a public involvement
and participation program.

2. BMPs for Public Involvement and Participation

Seymour Johnson AFB shall implement the following BMPs to meet the objectives of the Public
Involvement and Participation.

BMP Measurable Goals
a. Allow the public an
opportunity to review and
comment on the
Stormwater Plan
Seymour Johnson AFB shall conduct at least one public meeting during
the term of the permit to allow the public an opportunity to review and
comment on the Stormwater Plan.
b. Volunteer community
involvement program
Seymour Johnson AFB shall include and promote volunteer
opportunities as part of its stormwater program designed to promote
ongoing participation.
C. Mechanism for Public
involvement
Seymour Johnson AFB shall provide and promote a mechanism for
public involvement that provides for input on stormwater issues and the
stormwater program. Seymour Johnson AFB may establish a stand-
alone group or utilize an existing group or processes.
d. Hotline/Help line Seymour Johnson AFB shall promote and maintain hotline/helpline.
Seymour Johnson AFB may utilize an existing hotline/helpline so long
as it also promotes stormwater concerns or may train staff to transfer
calls to the stormwater administrator.
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Part II Page 5 of 15

SECTION D: ILLICIT DISCHARGE DETECTION AND ELIMINATION

1. Objectives for Illicit Discharge Detection and Elimination

a. Develop, implement and enforce a program to detect and eliminate illicit discharges into
your small MS4.
b. Develop and maintain a storm sewer system map, showing the location of all outfalls and
the names and location of all waters of the United States that receive discharges from
those outfalls;
c. Effectively prohibit, through ordinance, or other regulatory mechanism, non-storm water
discharges into your storm sewer system and implement appropriate enforcement
procedures and actions;
d. Develop and implement a plan to detect and address non-storm water discharges,
including illegal dumping, to your system; and
e. Inform public employees, businesses, and the general public of hazards associated with
illegal discharges and improper disposal of waste.
f. Address the following categories of non-storm water discharges or flows (i.e., illicit
discharges) only if you identify them as significant contributors of pollutants to your
small MS4: water line flushing, landscape irrigation, diverted stream flows, rising ground
waters, uncontaminated ground water infiltration, uncontaminated pumped ground water,
discharges from potable water sources, foundation drains, air conditioning condensation,
irrigation water, springs, water from crawl space pumps, footing drains, lawn watering,
individual residential car washing, flows from riparian habitats and wetlands,
dechlorinated swimming pool discharges, and street wash water (discharges or flows
from fire fighting activities are excluded from the effective prohibition against non-storm
water and need only be addressed where they are identified as significant sources of
pollutants to waters of the United States).

2. BMPs for Illicit Discharge Detection and Elimination

Seymour Johnson AFB shall implement the following BMPs to meet the objectives of the Illicit
Discharge Detection and Elimination Program.

BMP Measurable Goals
a. Maintain a Storm Sewer
System Base Map of
Major Outfalls.
Seymour Johnson AFB shall maintain, assess, and update as necessary a
map identifying major outfalls. At a minimum, components include
major outfalls and receiving streams, and type of conveyance system
(i.e., either closed pipe or open drainage). For closed pipe systems
identify the pipe material, shape, and size .
b. Detect dry weather flows Seymour Johnson AFB shall implement a program for conducting
regular dry weather flow field observations in accordance with written
field screening procedure for detecting and tracing the sources of illicit
discharges and for removing the sources or reporting the sources to the
State to be properly permitted.
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BMP Measurable Goals
C. Investigations into the
source of all identified
illicit discharges.
Seymour Johnson AFB shall maintain, asses annually and update as
necessary written procedures for conducting investigations into the
source of all identified illicit discharges, including approaches to
requiring such discharges to be eliminated.
d. Track investigations and
document illicit
discharges
Seymour Johnson AFB shall track all investigations and document the
date(s) the illicit discharge was observed; the results of the
investigation; any follow-up of the investigation; and the date the
investigation was closed.
e. Employee Training Seymour Johnson AFB shall implement and document a training
program for appropriate personnel, who, as part of their normal job
responsibilities, may come into contact with or otherwise observe an
illicit discharge or illicit connection to the storm sewer system. The
training program shall identify appropriate personnel, the schedule for
conducting the training and the proper procedures for reporting and
responding to an illicit discharge or connection. Follow-up training
must be provided as needed to address changes in personnel,
procedures, or techniques.
f. Provide Public Education Seymour Johnson AFB shall inform public employees, businesses, and
the general public of hazards associated with illegal discharges and
improper disposal of waste.
g. Reporting mechanism Seymour Johnson AFB shall promote, publicize, and facilitate a
reporting mechanism for the public and staff to report illicit discharges
and establish and implement citizen request response procedures.
Seymour Johnson AFB must conduct reactive inspections in response to
complaints and follow-up inspections as needed to ensure that
corrective measures have been implemented by the responsible party to
achieve and maintain compliance.
h. Procedures to identify
and report sanitary sewer
overflows.
Seymour Johnson AFB shall establish and implement, assess annually,
and update as necessary written procedures to identify and report
sanitary sewer overflows and sewer leaks to the system operator.
PERMIT NO. NCS000335
Part II Page 7 of 15

SECTION E: CONSTRUCTION SITE RUNOFF CONTROLS

1. Compliance with the NCDENR Division of Land Resources Erosion and Sediment Control
Program effectively meets the requirements of the Construction Site Runoff Controls. This
program is authorized under the Sediment Pollution Control Act of 1973 and Chapter 4 of Title
15A of the North Carolina Administrative Code. This program includes procedures for public
input, sanctions to ensure compliance, requirements for construction site operators to implement
appropriate erosion and sediment control practices, review of site plans which incorporates
consideration of potential water quality impacts, and procedures for site inspection and
enforcement of control measures. The NCG010000 permit establishes requirements for
construction site operators to control waste such as discarded building materials, concrete truck
washout, chemicals, litter, and sanitary waste at the construction site that may cause adverse
impacts to water quality.

2. Seymour Johnson AFB must provide and promote a means for the public to notify the appropriate
authorities of observed erosion and sedimentation problems. Seymour Johnson AFB may
implement a plan promoting the existence of the NCDENR, Division of Land Resources "Stop
Mud" hotline to meet the requirements of this paragraph.
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Part II Page 8 of 15

SECTION F: POST-CONSTRUCTION SITE RUNOFF CONTROLS

1. Objectives for Post-Construction Site Runoff Controls

a. Develop, implement, and enforce a program to address storm water runoff from new
development and redevelopment projects, including public transportation maintained by
Seymour Johnson AFB.
b. Develop and implement strategies which include a combination of structural and/or non-
structural best management practices (BMPs) appropriate for the base; and
c. Ensure adequate long-term operation and maintenance of BMPs.

2. Post-Construction Site Runoff Controls

a. Construction projects that are performed by, or under contract for, Seymour Johnson
AFB, including roads and bridges must meet the requirements the stormwater
management and water quality protection required by Session Law 2006-246. Roads and
bridges must minimize built-upon surfaces, divert stormwater away from surface waters
as much as possible and employ other best management practices to minimize water
quality impacts to the maximum extent practicable. To comply with the Post
Construction requirements, Seymour Johnson AFB shall submit an application and
appropriate fee to the Washington Regional Office for all projects, including public roads
and bridges that disturb greater than or equal to one acre including projects less than one
acre that are part of a larger common plan of development. All designs shall comply with
the State BMP Manual. The state will withhold approvals for projects not meeting the
design standards in Session Law 2006-246.

b. Comprehensive Watershed Protection Plans. Seymour Johnson AFB has developed and
implements a comprehensive watershed protection plan, approved by the State, to meet the
requirements for a post-construction program.
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SECTION G: POLLUTION PREVENTION AND GOOD HOUSEKEEPING

1. Objective for Pollution Prevention and Good Housekeeping

a. Develop and implement an operation and maintenance program that includes a training
component and has the ultimate goal of preventing or reducing pollutant runoff from
municipal operations.

b. Provide employee training to prevent and reduce storm water pollution from activities
such as park and open space maintenance, fleet and building maintenance, new
construction and land disturbances, and storm water system maintenance.

2. BMPs for the Pollution Prevention and Good Housekeeping

Seymour Johnson AFB shall implement the following BMPs to meet the objectives of the
Pollution Prevention and Good Housekeeping Program.

BMP Measurable Goals
a. Inventory of facilities and
operations with the
potential for generating
polluted stormwater
runoff
Seymour Johnson AFB shall maintain an inventory of facilities and
operations with the potential for generating polluted stormwater runoff.
b. Map facilities and
operations with the
potential for generating
polluted stormwater
runoff
Seymour Johnson AFB shall identify and either maintain a map or list
of facilities and operations with the potential for generating polluted
stormwater runoff. The map or list must identify the stormwater outfalls
corresponding to each of the facilities as well as the receiving waters to
which these facilities discharge. The map or list must be maintained and
updated annually and be available for review by the permitting
authority.
C. Operation and
Maintenance (O&M) for
facilities and operations
with the potential for
generating polluted
stormwater runoff
Seymour Johnson AFB shall maintain and implement an Operation and
Maintenance (O&M) program for facilities and operations with the
potential for generating polluted stormwater runoff. The O&M
program shall specify the frequency of inspections and routine
maintenance requirements .
d. Spill Response
Procedures for facilities
and operations with the
potential for generating
polluted stormwater
runoff
Seymour Johnson AFB shall have written spill response procedures for
facilities and operations with the potential for generating polluted
stormwater runoff.
e. Streets, roads, and public
parking lots maintenance
Seymour Johnson AFB shall implement BMPs selected to reduce
polluted stormwater runoff from municipally-owned streets, roads, and
parking lots.
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BMP Measurable Goals
f. Operation and
Maintenance (O&M) for
catch basins and
conveyance systems
Seymour Johnson AFB shall maintain and implement an O&M program
for the stormwater sewer system including catch basins and conveyance
systems. The O&M program shall include route maps and specify the
frequency of inspections and routine maintenance requirements.
g. Identify and map for
municipally owned or
maintained structural
stormwater controls
Seymour Johnson AFB shall identify and map or maintain a list of all
structural stormwater controls. The map must identify the stormwater
outfalls corresponding to each structural stormwater control as well as
the receiving waters to which these facilities discharge. The map must
be maintained and updated regularly and be available for review by the
permitting authority.
h. O&M for structural
stormwater controls
Seymour Johnson AFB shall maintain and implement an O&M program
for structural stormwater controls. The O&M program shall specify the
frequency of inspections and routine maintenance requirements.
Seymour Johnson AFB shall inspect and maintain all structural
stormwater controls in accordance with the schedule developed by
Seymour Johnson AFB. Seymour Johnson AFB shall document
inspections and maintenance of all structural stormwater controls.
1. Training Seymour Johnson AFB shall maintain and implement a training
program for personnel involved in implementing pollution prevention
and good housekeeping practices .
J. Prevent or Minimize
Contamination of
Stormwater Runoff from
all areas used for Vehicle
and Equipment Cleaning
Seymour Johnson AFB shall describe and implement measures that
prevent or minimize contamination of the stormwater runoff from all
areas used for vehicle and equipment cleaning.
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Part II Page 11 of 15

SECTION H: INDUSTRIAL ACTIVITIES

1. Objective

Develop, maintain and implement a Stormwater Pollution Prevention Plan (Plan) for each facility
with an industrial activity that is covered by this permit.

2. Industrial Activities as defined in 40 CFR 122.26 (b)(l4)

a. Seymour Johnson AFB shall implementation of the requirements of General Permit
NCG080000, to control stormwater point source discharges associated with activities that
have vehicle maintenance areas (including vehicle rehabilitation, mechanical repair,
painting, fueling, lubrication, equipment cleaning operation areas and like activities
deemed by DEEMLR to be similar in the process and/or the exposure of raw materials,
products, by-products, or waste materials). Implementation of the requirements of
General Permit NCG080000 constitutes compliance with the requirements develop,
maintain and implement a Stormwater Pollution Prevention Plan (Plan) and Monitoring
Plan for each facility and/or area with an industrial activity covered by this permit.

b. Seymour Johnson AFB shall implementation of the requirements of General Permit
NCG150000, to control stormwater point source discharges associated with industrial
activity from Air Transportation including air transportation, airports, and aircraft service
and maintenance including: aircraft cleaning; aircraft servicing/repairing, and aircraft
maintenance shops (including aircraft and equipment rehabilitation, mechanical repairs,
painting, fueling, lubrication); and material handling facilities. Implementation of the
requirements of General Permit NCG150000 constitutes compliance with the
requirements develop , maintain and implement a Stormwater Pollution Prevention Plan
(Plan) and Monitoring Plan for each facility and/or area with an industrial activity
covered by this permit.

3. Base wide Stormwater Pollution Prevention Plan (Plan) and Monitoring Plan

In lieu of complying with the requirements of paragraph 2 of this section, Seymour Johnson AFB
may propose and submit to the Division for their approval a base wide Stormwater Pollution
Prevention Plan (Plan) and Monitoring Plan for the base that effectively meets the requirements
develop, maintain and implement a Stormwater Pollution Prevention Plan (Plan) and Monitoring
Plan for each facility and/or area with an industrial activity covered by this permit.
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SECTION I: OIL WATER SEPARATORS

All oil water separators that discharge to either the stormwater system, directly into the waters of the
state, or have engineered diversionary catchment basins, including in the event of a bypass, will be fully
described in the SPPP. The description will include:

a) The location of the oil water separator
b) The activities that occur in the oil water separator's drainage area
c) The materials that are handled in the drainage area
d) The name of the water body to which it drains
e) The number of the outfall that the oil water separator discharges into
f) The drainage area draining into the oil water separator
g) The oil water separator's design capacity
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SECTION J: MONITORING REQUIREMENTS

1. Seymour Johnson AFB shall implement a monitoring program as outlined in the Stormwater
Program to prioritize areas of the program and to assess the effectiveness of program
components. These monitoring results will be used by Seymour Johnson AFB to modify the
program components as necessary to accomplish the intent of the Stormwater Program. Results
of the monitoring program will be submitted to the Division according to the provisions of Part
N of this permit. Analytical monitoring is required as part of the monitoring program in
accordance with the provisions of the Stormwater Program. The parameters to be monitored are
those that have the potential to be present at the outfalls based on industrial activities.
Description of the location of each sample point, the activities which they drain, and the water
bodies to which they drain are described in the Stormwater Pollution Prevention Plan (SPPP).

a. Base-wide Analytical Monitoring Requirements. The following list of parameters shall
monitored at outfalls 4 (runoff from Age Maintenance areas and Mayfields Ditch), outfall
3 (at the end of Prison Ditch which receives runoff from outfalls 3a, 3b, 3c, and 3d), and
2 (consolidated outfalls l0A, l0B, and 1 lB), as described in Seymour Johnson AFB's
SPPP.

Parameters Units Measurement Frequency Sample Type
Total Suspended Solids (TSS) mg/I Once per year Grab
Oil and Grease mg/I Once per year Grab
pH Standard Units Once per year Grab
Total Flow MG Once per year
Event Duration Minutes Once per year
Total Rainfall inches Once per year

b. Analytical Monitoring Schedule.

Monitorin2 Period Start End
Year 1 April 1, 2016 March 31, 2017
Year2 April 1, 2017 March 31, 2018
Year 3 April 1, 2018 March 31, 2019
Year4 April 1, 2019 March 31, 2020
Year 5 April 1, 2020 March 31, 2021

C. Cutoff Concentrations. For each parameter, the arithmetic mean of all analytical
sampling results collected during the term of the permit shall be calculated for each
individual outfall and compared to the cut-off concentrations listed below. At a
minimum, Seymour Johnson AFB must perform analytical sampling during the first year
of the permit. If the analytical results fall at or below the cutoff concentrations listed
below, Seymour Johnson AFB is not required to sample that parameter at that outfall for
the remainder of the permit. If analytical results exceed the cutoff concentration,
subsequent sampling is required annually. Each year, Seymour Johnson AFB has the
option to assess if the arithmetic mean of data collected for each parameter at each outfall
is below the cutoff concentration. If the arithmetic mean is less than the cutoff
concentration then Seymour Johnson AFB is not required to continue analytical
monitoring for that parameter at that outfall during the remainder of the term of the
permit unless a significant change in the operations in the drainage area occurs.
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Part II Page 14 of 15

Parameter Cut-off Concentration
Oil and Grease 30 mg/I
pH (do not take average, use most recent pH sample result) 6-9 standard units
TSS 100 mg/1

d. Qualitative monitoring (color, odor, clarity, floating solids, suspended solids, foam, oil
sheen, erosion or deposition at the outfall, and other visual indicators of stormwater
pollution) requires a visual inspection of each stormwater outfall associated with
industrial activities and/or oil water separators regardless of representative outfall status.
No analytical tests are required. Qualitative monitoring of stormwater outfalls does not
need to be performed during a representative storm event. All qualitative monitoring will
be performed twice per year, once during the spring (April-June) and once in the fall
(September-November). If Seymour Johnson AFB's qualitative monitoring indicates
either that existing stormwater BMPs are ineffective, or that significant stormwater
contamination is present, Seymour Johnson AFB shall investigate potential causes,
evaluate the feasibility of corrective actions, and implement those corrective actions
appropriate. A written record of Seymour Johnson AFB's investigation, evaluation, and
response actions shall be kept in the Stormwater Pollution Prevention Plan.

2. Implementation of the requirements of General Permit NCG080000 constitutes compliance with
the requirements develop, maintain and implement a Monitoring Plan for each facility and/or area
with an industrial activity covered by this permit.

3. Seymour Johnson AFB may propose and submit to the Division for their approval modifications
to the base wide Monitoring Plan that effectively meets the requirements develop, maintain and
implement a Monitoring Plan for each industrial activity covered by this permit.
PERMIT NO. NCS000335
Part II Page 15 of 15

SECTION K: IMPAIRED WATERS and TOTAL MAXIMUM DAILY LOADS (TMDLs)

1. For impaired waters Seymour Johnson AFB shall evaluate strategies and tailor and/or expand
BMPs within the scope of the six minimum measures to enhance water quality recovery strategies
in the watershed(s) and describe the strategies and tailored and/or expanded BMPs in their annual
reports.

2. Seymour Johnson AFB shall comply with the requirements of an approved TMDL.

3. Within 12 months of the final approval of a TMDL, Seymour Johnson AFB's annual reports shall
include a description of existing programs, controls, partnerships, projects, and strategies to
address impaired waters and a brief explanation as to how the programs, controls, partnerships,
projects and strategies address impaired waters.

4. Within 24 months of the final approval of a TMDL, Seymour Johnson AFB's annual reports shall
include an assessment of whether additional structural and/or non-structural BMPs are necessary
to address impaired waters and a brief explanation as to how the programs, controls, partnerships,
projects and strategies address impaired waters.

5. Within 36 months of the final approval of a TMDL, Seymour Johnson AFB's annual reports shall
include a description of activities expected to occur and when the activities are expected to occur
within the remainder of the permit term.

THIS PAGE INTENTIONALLY BLANK
PERMIT NO.NCS000335
Part III Page 1 of 2

PART III PROGRAM ASSESSMENT

1. Implementation of the Stormwater Plan will include documentation of all program components
that are being undertaken including, but not limited to, inspections, maintenance activities,
educational programs, implementation ofBMPs, enforcement actions, and other stormwater
activities. If monitoring and sampling are being performed documentation of results shall be
included. Documentation will be kept on-file by Seymour Johnson AFB for a period of five years
and made available to the Director or his authorized representative immediately upon request.

2. Seymour Johnson AFB's Stormwater Plan will be reviewed and updated as necessary, but at least
on an annual basis. Seymour Johnson AFB will submit a report of this to the Division on an
annual basis. Seymour Johnson AFB's reporting will include appropriate information to
accurately describe the progress, status, and results of Seymour Johnson AFB's Stormwater Plan
and will include, but is not limited to, the following components:

(a) Seymour Johnson AFB will give a detailed description of the status of implementation of
the Stormwater Plan. This will include information on development and implementation
of all components of the Stormwater Plan for the past year and schedules and plans for
the year following each report.

(b) Seymour Johnson AFB will adequately describe and justify any proposed changes to the
Stormwater Plan. This will include descriptions and supporting information for the
proposed changes and how these changes will impact the Stormwater Plan (results,
effectiveness, implementation schedule, etc.).

(c) Seymour Johnson AFB will document any necessary changes to programs or practices for
assessment of management measures implemented through the Stormwater Plan. In
addition, any changes in the cost of, or funding for, the Stormwater Plan will be
documented.

(d) Seymour Johnson AFB will include a summary of data accumulated as part of the
Stormwater Plan throughout the year along with an assessment of what the data indicates
in light of the Stormwater Plan.

(e) Seymour Johnson AFB will provide information on the annual expenditures and budget
anticipated for the year following each report along with an assessment of the continued
financial support for the overall Stormwater Plan.

(f) Seymour Johnson AFB will provide a summary of activities undertaken as part of the
Stormwater Plan throughout the year. This summary will include, but is not limited to,
information on the establishment of appropriate legal authorities, project assessments,
inspections, enforcement actions, continued inventory and review of the storm sewer
system, education, training and results of the illicit discharge detection and elimination
program.

3. The Director may notify Seymour Johnson AFB when the Stormwater Plan does not meet one or
more of the lawful requirements of the permit. Within 30 days of such notice, Seymour Johnson
AFB will submit a plan and time schedule to the Director for modifying the Stormwater Plan to
meet the requirements. The Director may approve the corrective action plan, approve a plan with
PERMIT NO.NCS000335
Part III Page 2 of 2

modifications, or reject the proposed plan. Seymour Johnson AFB will provide certification in
writing (in accordance with Part IV, Paragraph 2) to the Director that the changes have been
made. Nothing in this paragraph shall be construed to limit the Director's ability to conduct
enforcement actions for violations of this permit.

4. The Division may request additional reporting information as necessary to assess the progress and
results of Seymour Johnson AFB's Stormwater Plan.
PERMIT NO.NCS000335
Part N Page 1 of 2

PARTIV REPORTING AND RECORD KEEPING REQUIREMENTS

1. Records Retention

Visual monitoring shall be documented and records maintained at the facility along with the
Stormwater Pollution Prevention Plan. Copies of analytical monitoring results shall also be
maintained on-site. Seymour Johnson AFB shall retain records of all monitoring information,
including all calibration and maintenance records and all original strip chart recordings for
continuous monitoring instrumentation, and copies of all reports required by this Permit for a
period of at least 5 years from the date of the sample, measurement, report or application. This
period may be extended by request of the Director at any time.

2. Report Submittals
(a) A signed copy of all reports required herein, shall be submitted to the following address:
Department of Environmental Quality
Division of Energy, Mineral and Land Resources
Land Quality Section
1612 Mail Service Center
Raleigh, North Carolina 27699-1612
and
Washington Regional Office
Department of Environmental Quality
Division of Energy, Mineral and Land Resources
Land Quality Section
943 Washington Square mall
Washington , North Carolina 27889

(b) All applications, reports, or information submitted to DEMLR shall be signed by duly
authorized representative. A person is a duly authorized representative only if:

(i) The authorization is made in writing by a principal executive officer or ranking
elected official;

(ii) The authorization specified either an individual or a position having
responsibility for the overall operation of a regulated facility or activity or an
individual or position having overall responsibility for environmental/stormwater
matters; and

(iii) The written authorization is submitted to the Director.

(c) Any person signing a document under paragraphs (a) or (b) of this section shall make the
following certification:

"I certify, under penalty oflaw, that this document and all attachments were prepared
under my direction or supervision in accordance with a system designed to assure that
qualified personnel properly gather and evaluate the information submitted. Based on my
inquiry of the person or persons who manage the system, or those persons directly
PERMIT NO.NCS000335
Part N Page 2 of 2

responsible for gathering the information, the information submitted is, to the best of my
knowledge and belief, true, accurate, and complete. I am aware that there are significant
penalties for knowing submitting false information, including the possibility of fines and
imprisonment for knowing violations."

3. Recording Results

For each activity performed or information collected pursuant to the requirements of this permit,
Seymour Johnson AFB shall record the following information:

(a) The dates, exact place, and time of the activity or information collected;
(b) The individual(s) who performed activity;
(c) The techniques or methods used; and
(d) The results of such activity or information collected .

4. Twenty-four Hour Reporting

Seymour Johnson AFB shall report to the central office or the appropriate regional office any
noncompliance that may constitute an imminent threat to health or the environment. Any
information shall be provided orally within 24 hours from the time Seymour Johnson AFB
became aware of the circumstances. A written submission shall also be provided within 5 days of
the time Seymour Johnson AFB becomes aware of the circumstances.

The written submission shall contain a description of the noncompliance, and its causes; the
period of noncompliance, including exact dates and times, and if the noncompliance has not been
corrected, the anticipated time compliance is expected to continue; and steps taken or planned to
reduce, eliminate, and prevent reoccurrence of the noncompliance.

The Director may waive the written report on a case-by-case basis if the oral report has been
received within 24 hours.

5. Additional Reporting

The Director may request reporting information on a more frequent basis as deemed necessary
either for specific portions of Seymour Johnson AFB's Stormwater Plan, or for the entire
Program.

6. Other Information

Where Seymour Johnson AFB becomes aware that it failed to submit any relevant facts in
applying to be covered under this permit or in any report to the Director, it shall promptly submit
such facts or information.
PERMIT NO.NCS000335
Part V Page I of 6

PARTY STANDARD CONDITIONS

SECTION A: COMPLIANCE AND LIABILITY

1. Duty to Comply

Seymour Johnson AFB must comply with all lawful conditions of this permit. Any permit
noncompliance constitutes a violation of the Clean Water Act and is grounds for enforcement
action; for permit termination, revocation and reissuance, or modification; or denial of permit
coverage upon renewal application.

(a) Seymour Johnson AFB shall comply with standards or prohibitions established under
Section 307(a) of the Clean Water Act for toxic pollutants within the time provided in the
regulations that establish these standards or prohibitions, even if the permit has not yet
been modified to incorporate the requirement.

(b) The Clean Water Act provides that any person who violates a permit condition is subject
to a civil penalty not to exceed the maximum amounts authorized by Section 309(d) of
the Act and the Federal Civil Penalties Inflation Adjustment Act (28 U.S.C. §2461 note)
as amended by the Debt Collection Improvement Act (31 U.S.C. §3701 note) (currently
$27,500 per day for each violation). Any person who negligently violates any permit
condition is subject to criminal penalties of $2,500 to $25,000 per day of violation, or
imprisonment for not more than 1 year, or both. Any person who knowingly violates
permit conditions is subject to criminal penalties of $5,000 to $50,000 per day of
violation, or imprisonment for not more than 3 years, or both. Also, any person who
violates a permit condition may be assessed an administrative penalty not to exceed
$11,000 per violation with the maximum amount not to exceed $137,500. [Ref: Section
309 of the Federal Act 33 USC 1319 and 40 CFR 122.41(a).]

(c) Under state law, a daily civil penalty of not more than twenty-five thousand dollars
($25,000) per violation may be assessed against any person who violates or fails to act in
accordance with the terms, conditions, or requirements of a permit. [Ref: North Carolina
General Statutes 143-215.6A]

(d) Any person may be assessed an administrative penalty by the Administrator for violating
sections 301, 302, 306, 307, 308, 318 or 405 of this Act, or any permit condition or
limitation implementing any of such sections in a permit issued under section 402 of this
Act. Pursuant to 40 CFR Part 19 and the Act, administrative penalties for Class I
violations are not to exceed the maximum amounts authorized by Section 309(g)(2)(A) of
the Act and the Federal Civil Penalties Inflation Adjustment Act (28 U.S.C. §2461 note)
as amended by the Debt Collection Improvement Act (31 U.S.C. §3701 note) (currently
$11,000 per violation, with the maximum amount of any Class I penalty assessed not to
exceed $27,500). Pursuant to 40 CFR Part 19 and the Act, penalties for Class II violations
are not to exceed the maximum amounts authorized by Section 309(g)(2)(B) of the Act
and the Federal Civil Penalties Inflation Adjustment Act (28 U.S.C. §2461 note) as
amended by the Debt Collection Improvement Act (31 U.S.C. §3701 note) (currently
$11,000 per day for each day during which the violation continues , with the maximum
amount of any Class II penalty not to exceed $137,500).
PERMIT NO.NCS000335
Part V Page 2 of 6

2. Duty to Mitigate

Seymour Johnson AFB shall take all reasonable steps to minimize or prevent any discharge in
violation of this permit that has a reasonable likelihood of adversely affecting human health or the
environment.

3. Civil and Criminal Liability

Nothing in this permit shall be construed to relieve Seymour Johnson AFB from any
responsibilities, liabilities, or penalties for noncompliance pursuant to NCGS 143-215.3, 143-
215.6A, 143-215.6B, 143-215.6C or Section 309 of the Federal Act, 33 USC 1319. Furthermore,
Seymour Johnson AFB is responsible for consequential damages, such as fish kills, even though
the responsibility for effective compliance may be temporarily suspended.

4. Oil and Hazardous Substance Liability

Nothing in this permit shall be construed to preclude the institution of any legal action or relieve
Seymour Johnson AFB from any responsibilities, liabilities, or penalties to which Seymour
Johnson AFB is or may be subject to under NCGS 143-215.75 et seq. or Section 311 of the
Federal Act, 33 USC 1321.

5. Property Rights

The issuance of this permit does not convey any property rights in either real or personal
property, or any exclusive privileges, nor does it authorize any injury to private property or any
invasion of personal rights, nor any infringement of federal, state or local laws or regulations.

6. Severability

The provisions of this permit are severable, and if any provision of this permit, or the application
of any provision of this permit to any circumstances, is held invalid, the application of such
provision to other circumstances, and the remainder of this permit, shall not be affected thereby.

7. Duty to Provide Information

Seymour Johnson AFB shall furnish to the Director, within a reasonable time, any information
which the Director may request to determine whether cause exists for modifying, revoking and
reissuing, or terminating the coverage issued pursuant to this permit or to determine compliance
with this permit. Seymour Johnson AFB shall also furnish to the Director upon request, copies of
records required by this permit.

8. Penalties for Tampering

The Clean Water Act provides that any person who falsifies, tampers with, or knowingly renders
inaccurate, any monitoring device or method required to be maintained under this permit shall,
upon conviction, be punished by a fine of not more than $10,000 per violation, or by
imprisonment for not more than two years per violation, or by both. If a conviction of a person is
for a violation committed after a first conviction of such person under this paragraph, punishment
is a fine of not more than $20,000 per day of violation, or by imprisonment of not more than 4
years, or both.
PERMIT NO.NCS000335
Part V Page 3 of 6

9. Penalties for Falsification of Reports

The Clean Water Act provides that any person who knowingly makes any false statement,
representation, or certification in any record or other document submitted or required to be
maintained under this permit, including monitoring reports or reports of compliance or
noncompliance shall, upon conviction, be punished by a fine of not more than $10,000 per
violation, or by imprisonment for not more than two years per violation, or by both.

10. Permit Actions

This permit may be modified, revoked and reissued, or terminated for cause. The notification of
planned changes or anticipated noncompliance does not stay any permit condition.

11. Permit Expiration

Seymour Johnson AFB is not authorized to discharge after the expiration date. In order to receive
automatic authorization to discharge beyond the expiration date, Seymour Johnson AFB shall
submit forms and fees as are required by the Division no later than 180 days prior to the
expiration date.

12. Transfers

This permit is not transferable to any person except after notice to and approval by the Director.
The Director may require modification or revocation and reissuance of the permit to change the
name and incorporate such other requirement as may be necessary under the Clean Water Act.
Seymour Johnson AFB is required to notify the Division in writing in the event the permitted
facility is sold or closed.

SECTION B: OPERATION AND MAINTENANCE of POLLUTION CONTROLS

1. Proper Operation and Maintenance

Seymour Johnson AFB shall at all times properly operate and maintain all facilities and systems
of treatment and control (and related appurtenances) which are owned and/or operated by
Seymour Johnson AFB to achieve compliance with the conditions of this permit. Proper
operation and maintenance also includes adequate laboratory controls and appropriate quality
assurance procedures. This provision requires the operation of back-up or auxiliary facilities or
similar systems which are installed by Seymour Johnson AFB only when the operation is
necessary to achieve compliance with the conditions of this permit.

2. Need to Halt or Reduce not a Defense

It shall not be a defense for Seymour Johnson AFB in an enforcement action that it would have
been necessary to halt or reduce the permitted activity in order to maintain compliance with the
condition of this permit.
PERMIT NO.NCS000335
Part V Page 4 of 6

3. Bypassing of Stormwater Control Facilities

Bypass is prohibited and the Director may take enforcement action against Seymour Johnson
AFB for bypass unless:

a. Bypass was unavoidable to prevent loss of life, personal injury or severe property
damage; and

b. There were no feasible alternatives to the bypass, such as the use of auxiliary control
facilities, retention of stormwater or maintenance during normal periods of equipment
downtime or dry weather. This condition is not satisfied if adequate backup controls
should have been installed in the exercise of reasonable engineering judgment to prevent
a bypass which occurred during normal periods of equipment downtime or preventive
maintenance; and

c. Seymour Johnson AFB submitted notices as required under Section E of this Part.

If the Director determines that it will meet the three conditions listed above, the Director may
approve an anticipated bypass after considering its adverse effects.

SECTION C: MONITORING AND RECORDS

I. Representative Sampling

When required herein, stormwater samples collected and measurements taken shall be
characteristic of the volume and nature of the permitted discharge. Analytical stormwater
sampling shall be performed during a representative storm event. These samples shall be taken
on a day and time that is characteristic of the discharge. Where appropriate, all stormwater
samples shall be taken before the discharge joins or is diluted by any other waste stream, body of
water, or substance. When specified herein, monitoring points established in this permit shall not
be changed without notification to and approval of the Director.

If a facility has multiple discharge locations with substantially identical stormwater discharges
that are required to be sampled, Seymour Johnson AFB may petition the Director for
representative outfall status. If it is established that the stormwater discharges are substantially
identical and Seymour Johnson AFB is granted representative outfall status, then sampling
requirements may be performed at a reduced number of outfalls.

2. Flow Measurements

Where required, appropriate flow measurement devices and methods consistent with accepted
scientific practices shall be selected and used to ensure the accuracy and reliability of
measurements of the volume of monitored discharges.

3. Test Procedures

Test procedures for the analysis of pollutants shall conform to the EMC regulations published
pursuant to NCGS 143-215.63 et. seq, the Water and Air Quality Reporting Acts, and to
regulations published pursuant to Section 304(g), 33 USC 1314, of the Federal Water Pollution
Control Act, as Amended, and Regulation 40 CFR 136.
PERMIT NO.NCS000335
Part V Page 5 of 6

To meet the intent of the monitoring required by this permit, all test procedures must produce
minimum detection and reporting levels and all data generated must be reported down to the
minimum detection or lower reporting level of the procedure.

4. Inspection and Entry

Seymour Johnson AFB shall allow the Director, or an authorized representative (including an
authorized contractor acting as a representative of the Director), or in the case of a facility which
discharges through a municipal separate storm sewer system, an authorized representative of a
municipal operator or the separate storm sewer system receiving the discharge, upon the
presentation of credentials and other documents as may be required by law, to;

a. Enter upon Seymour Johnson AFB's premises where a regulated facility or activity is
located or conducted, or where records must be kept under the conditions of this permit;

b. Have access to and copy, at reasonable times, any records that must be kept under the
conditions of this permit;

c. Inspect at reasonable times any facilities, equipment (including monitoring and control
equipment), practices, or operations regulated or required under this permit; and

d. Sample or monitor at reasonable times, for the purposes of assuring permit compliance or
as otherwise authorized by the Clean Water Act, any substances or parameters at any
location.

5. Availability of Reports

Except for data determined to be confidential under NCGS 143-215.3(a)(2) or Section 308 of the
Federal Act, 33 USC 1318, all reports prepared in accordance with the terms of this permit shall
be available for public inspection at the offices of the Division. As required by the Act, analytical
data shall not be considered confidential. Knowingly making any false statement on any such
report may result in the imposition of criminal penalties as provided for in NCGS 143-215.6B or
in Section 309 of the Federal Act.

6. Bypass

a. Anticipated bypass. If Seymour Johnson AFB knows in advance of the need for a
bypass, it shall submit prior notice, if possible at least ten days before the date of the
bypass; including an evaluation of the anticipated quality and effect of the bypass.

b. Unanticipated bypass. Seymour Johnson AFB shall submit notice within 24 hours of
becoming aware of an unanticipated bypass.

7. Other Noncompliance

Seymour Johnson AFB shall report all instances of noncompliance not reported under 24 hour
reporting at the time monitoring reports are submitted.
PERMIT NO.NCS000335
Part V Page 6 of 6

8. Anticipated Noncompliance

Seymour Johnson AFB shall give notice to the Director as soon as possible of any planned
changes at the permitted facility which may result in noncompliance with the Permit
requirements.

9. Planned Changes

Seymour Johnson AFB shall give notice to the Director as soon as possible of any planned
changes at the permitted facility which could significantly alter the nature or quantity of
pollutants discharged. This notification requirement includes pollutants which are not
specifically listed in the Permit or subject to notification requirements under 40 CFR Part 122.42
(a).

10. Non-Stormwater Discharges

If the storm event monitored in accordance with this Permit coincides with a non-stormwater
discharge, Seymour Johnson AFB shall separately monitor all parameters as required under the
non-stormwater discharge permit and provide this information with the stormwater discharge
monitoring report.

11. Discharge Monitoring Reports

Seymour Johnson AFB shall retain all monitoring information for a period of at least 5 years from
the date of the sample, measurement , report or application. This period may be extended by
request of the Director at any time.

When no discharge has occurred from the facility during the report period, Seymour Johnson
AFB indicate "NO FLOW" as per NCAC TISA 02B .0506.

Seymour Johnson AFB shall record the required qualitative monitoring observations on the SDO
Qualitative Monitoring Report form provided by the Division, and shall retain the completed
forms on site. Visual monitoring results should not be submitted to the Division, except upon
DEQ's specific requirement to do so.
PERMIT NO.NCS000335
Part VI Page 1 of 1

PART VI LIMITATIONS REOPENER

The issuance of this permit does not prohibit the Director from reopening and modifying the permit,
revoking and reissuing the permit, or terminating the permit as allowed by the laws, rules, and regulations
contained in Title 40, Code of Federal Regulations, Parts 122 and 123; Title 15A of the North Carolina
Administrative Code, Subchapter 2H .0100; and North Carolina General Statute 143-215.1 et. al.

This permit shall be modified or alternatively, revoked and reissued, to comply with any effluent
guideline or water quality standard issued or approved under Sections 302(b)(2)(c), and (d), 304(b)(2) and
307(a) of the Clean Water Act, if the effluent guideline or water quality standard so issued or approved;

a. Contains different conditions or is otherwise more stringent than any effluent limitation
in the permit.
b. Controls any pollutant not limited in the permit.

This permit as modified or reissued under this paragraph shall also contain other requirements in the Act
then applicable.

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PERMIT NO. NCS000335
Part VII Page 1 of 1

PART VII ADMINISTERING AND COMPLIANCE MONITORING FEE REQUIREMENTS

Seymour Johnson AFB must pay the reasonable administering and compliance monitoring fee within 30
(thirty) days after being billed by the Division. Failure to pay the fee in a timely manner in accordance
with 15A NCAC 2H .0105(b)(4) may cause this Division to initiate action to revoke the permit.

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PERMIT NO. NCS000335
Part VIII Page 1 of 7

PART VIII DEFINITIONS

1. Act

See Clean Water Act.

2. Arithmetic Mean

The arithmetic mean of any set of values is the summation of the individual values divided by the
number of individual values.

3. Best Management Practice (BMP)

Measures or practices used to reduce the amount of pollution entering surface waters. BMPs can
be structural or non-structural and may take the form of a process, activity, physical structure or
planning (see non-structural BMP).

4. Built-upon Area

Built upon area has the same meaning as in Session Law 2006-246 and means that portion of a
project that is covered by impervious or partially impervious surface including, but not limited to,
buildings; pavement and gravel areas such as roads, parking lots, and paths; and recreation facilities
such as tennis courts. "Built upon area" does not include a wooden slatted deck, the water area of
a swimming pool, or pervious or partially pervious paving material to the extent that the paving
material absorbs water or allows water to infiltrate through the paving material.

5. Bulk Storage of Liquid Products

Liquid raw materials, manufactured products, waste materials or by-products with a single above
ground storage container having a capacity of greater than 660 gallons or with multiple above
ground storage containers located in close proximity to each other having a total combined
storage capacity of greater than 1,320 gallons.

6. Bypass

A bypass is the known diversion of stormwater from any portion of a stormwater control facility
including the collection system, which is not a designed or established operating mode for the facility.

7. Clean Water Act

The Federal Water Pollution Control Act, also known as the Clean Water Act (CWA), as
amended, 33 USC 1251, et. seq.
PERMIT NO. NCS000335
Part VIII Page 2 of 7

8. Common Plan of Development

A construction or land disturbing activity is part of a larger common plan of development if it is
completed in one or more of the following ways:

• In separate stages
• In separate phases
• In combination with other construction activities

It is identified by the documentation (including but not limited to a sign, public notice or hearing,
sales pitch, advertisement, loan application, drawing, plats, blueprints, marketing plans, contracts,
permit application, zoning request, or computer design) or physical demarcation (including but
not limited to boundary signs, lot stakes, or surveyor markings) indicating that construction
activities may occur on a specific plot. .

It can include one operator or many operators.

9. Department (DEQ)

Department means the North Carolina Department of Environment Quality

10. Division (DEMLR))

The Division of Energy, Mineral and Land Resources (DEMLRt

11. Director

The Director of the Division of Energy, Mineral and Land Resources (DEMLR), the permit
issuing authority.

12. EMC

The North Carolina Environmental Management Commission.

13. Grab Sample

An individual sample collected instantaneously. Grab samples that will be directly analyzed or
qualitatively monitored must be taken within the first 30 minutes of discharge.

14. Hazardous Substance

Any substance designated in 40 CFR Part 116 pursuant to Section 311 of the Clean Water Act.

15. Illicit Discharge

Any discharge to a MS4 that is not composed entirely of stormwater except discharges pursuant
to an NPDES permit (other than the NPDES MS4 permit), allowable non-stormwater discharges,
and discharges resulting from fire-fighting activities.
PERMIT NO. NCS000335
Part VIII Page 3 of 7

16. Industrial Activity

Industrial activities shall mean all industrial activities as defined in 40 CFR 122.26.

17. Landfill

A disposal facility or part of a disposal facility where waste is placed in or on land and which is
not a land treatment facility, a surface impoundment, an injection well, a hazardous waste long-
term storage facility or a surface storage facility.

18. Municipal Separate Storm Sewer System (MS4)

A conveyance or system of conveyances (including roads and street with drainage systems, catch
basins, curbs, gutters, ditches, manmade channels, or storm drains):

a. Owned or operated by the United States, a State, city, town, county, district , association, or
other public body (created by or pursuant to State law) having jurisdiction over disposal of
sewage, industrial wastes, stormwater, or other wastes, including special districts under State
law such as a sewer district, flood control district or drainage district , or similar entity, or an
Indian tribe or an authorized Indian tribal organization, or a designated and approved
management agency under Section 208 of the Clean Water Act (CWA) that discharges to
waters of the United States or waters of the State.
b. Designed or used for collecting or conveying stormwater;
c. Which is not a combined sewer; and
d. Which is not part of a Publicly Owned Treatment Works (POTW) as defined in 40 CFR 122.2

19. Non-stormwater Discharge Categories

The following are categories of non-stormwater discharges that Seymour Johnson AFB must
address if it identifies them as significant contributors of pollutants to the storm sewer system:
water line flushing, landscape irrigation, diverted stream flows, rising groundwater,
uncontaminated groundwater infiltration, [as defined in 40 CFR 35.2005(20)], uncontaminated
pumped groundwater, discharges from potable water sources, foundation drains, air conditioning
condensation, irrigation water, springs, water from crawl space pumps, footing drains, lawn
watering, individual residential car washing, flows from riparian habitats and wetlands,
dechlorinated swimming pool discharges , and street wash water (discharges or flows from fire
fighting activities are excluded from the definition of illicit discharge and only need to be
addressed where they are identified as significant sources of pollutants to waters of the United
States).

20. Non-structural BMP

Non-structural BMPs are preventive actions that involve management and source controls such
as: (1) Policies and ordinances that provide requirements and standards to direct growth to
identified areas, protect sensitive areas such as wetlands and riparian areas, maintain and/or
increase open space, provide buffers along sensitive water bodies, minimize impervious surfaces,
and/or minimize disturbance of soils and vegetation; (2) policies or ordinances that encourage
infill development in higher density urban areas, and areas with existing storm sewer
infrastructure; (3) education programs for developers and the public about minimizing water
quality impacts; (4) other measures such as minimizing the percentage of impervious area after
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development, use of measures to minimize directly connected impervious areas, and source
control measures often thought of as good housekeeping, preventive maintenance and spill
prevention.

21. Outfall

The point of wastewater or stormwater discharge from a discrete conveyance system. See also
point source discharge of stormwater.

22. Overburden

Any material of any nature, consolidated or unconsolidated, that overlies a mineral deposit,
excluding topsoil or similar naturally-occurring surface materials that are not disturbed by mining
operations.

23. Permittee

The owner or operator issued this permit.

24. Point Source Discharge of Stormwater

Any disce rnible, confined and discrete conveyance including, but not specifically limited to, any
pipe, ditch, channel, tunnel, conduit, well, or discrete fissure from which stormwater is or may be
discharged to waters of the state.

25. Redevelopment

Means any rebuilding activity unless that rebuilding activity;

a. Results in no net increase in built-upon area, and
b. Provides equal or greater stormwater control than the previous development.

26. Representative Storm Event

A storm event that measures greater than 0.1 inches of rainfall. The time between this storm event and the
previous storm event measuring greater than 0.1 inches must be at least 72 hours. A single storm event
may have a period ofno precipitation ofup to 10 hours. For example, if it rains but stops before
producing any collectable discharge, a sample may be collected if the next rain producing a discharge
begins within 10 hours.

27. Representative Outfall Status

When it is established that the discharge of stormwater runoff from a single outfall is
representative of the discharges at multiple outfalls, the DEMLR may grant representative outfall
status. Representative outfall status allows Seymour Johnson AFB to perform analytical
monitoring at a reduced number of outfalls.

28. Residential Development Activities

Residential development activities has the same meaning as in 15A NCAC 02B .0202(54).
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29. Rinse Water Discharge

The discharge of rinse water from equipment cleaning areas associated with industrial activity.
Rinse waters from vehicle and equipment cleaning areas are process wastewaters and do not
include washwaters utilizing any type of detergent or cleaning agent.

30. Secondary Containment

Spill containment for the contents of the single largest tank within the containment structure plus
sufficient freeboard to allow for the 25-year, 24-hour storm event.

31. Section 313 Water Priority Chemical

A chemical or chemical category which:

a. Is listed in 40 CFR 372.65 pursuant to Section 313 of Title III of the Superfund Amendments
and Reauthorization Act (SARA) of 1986, also titled the Emergency Planning and
Community Right-to-Know Act of 1986;
b. Is present at or above threshold levels at a facility subject to SARA title III, Section 313
reporting requirements; and
c. Meets at least one of the following criteria:

(1) Is listed in appendix D of 40 CFR part 122 on Table II (organic priority pollutants), Table
III (certain metals, cyanides, and phenols) or Table IV (certain toxic pollutants and
hazardous substances);
(2) Is listed as a hazardous substance pursuant to Section 311(b)(2)(A) of the CWA at 40
CFR 116.4; or
(3) Is a pollutant for which EPA has published acute or chronic water quality criteria.

32. Severe Property Damage

Means substantial physical damage to property, damage to the control facilities which causes
them to become inoperable, or substantial and permanent loss of natural resources which can
reasonably be expected to occur in the absence of a bypass. Severe property damage does not
mean economic loss caused by delays in production.

33. Significant Materials

Includes, but is not limited to: raw materials; fuels; materials such as solvents, detergents, and
plastic pellets; finished materials such as metallic products; raw materials used in food processing
or production; hazardous substances designated under Section 101(14) of CERCLA; any
chemical the facility is required to report pursuant to Section 313 of Title III of SARA; fertilizers;
pesticides; and waste products such as ashes, slag and sludge that have the potential to be released
with stormwater discharges.
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34. Significant Spills

Includes, but is not limited to: releases of oil or hazardous substances in excess of reportable
quantities under Section 311 of the Clean Water Act (Ref: 40 CFR 110.10 and CFR 117.21) or
Section 102 of CERCLA (Ref: 40 CFR 302.4).

35. Stormwater Discharge Outfall (SDO)

The point of departure of stormwater from a discernible, confined, or discrete conveyance,
including but not limited to, storm sewer pipes, drainage ditches, channels, spillways, or
channelized collection areas, from which stormwater flows directly or indirectly into waters of
the State of North Carolina.

36. Stormwater Runoff

The flow of water which results from precipitation and which occurs immediately following
rainfall or as a result of snowmelt.

37. Stormwater Associated with Industrial Activity

The discharge from any point source which is used for collecting and conveying stormwater and
which is directly related to manufacturing, processing or raw material storage areas at an
industrial site. Facilities considered to be engaged in "industrial activities" include those
activities defined in 40 CFR 122.26(b)(14). The term does not include discharges from facilities
or activities excluded from the NPDES program.

38. Stormwater Pollution Prevention Plan

A comprehensive site-specific plan which details measures and practices to reduce stormwater
pollution and is based on an evaluation of the pollution potential of the site.

39. Ten Year Design Storm

The maximum 24 hour precipitation event expected to be equaled or exceeded on the average
once in ten years. Design storm information can be found in the State of North Carolina Erosion
and Sediment Control Planning and Design Manual.

40. Total Flow

The flow corresponding to the time period over which the entire storm event occurs. Total flow
shall be either; (a) measured continuously, (b) calculated based on the amount of area draining to
the outfall, the amount of built-upon (impervious) area, and the total amount of rainfall, or (c)
estimated by the measurement of flow at 20 minute intervals during the rainfall event.

41. Total Maximum Daily Load (TMDL)

A TMDL is a calculation of the maximum amount of a pollutant that a waterbody can receive and
still meet water quality standards, and an allocation of that amount to the pollutant's sources. A
TMDL is a detailed water quality assessment that provides the scientific foundation for an
implementation plan. The implementation plan outlines the steps necessary to reduce pollutant
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loads in a certain body of water to restore and maintain water quality standards in all seasons. The
Clean Water Act, Section 303, establishes the water quality standards and TMDL programs.

42. Toxic Pollutant

Any pollutant listed as toxic under Section 307(a)(l) of the Clean Water Act.

43. Upset

Means an exceptional incident in which there is unintentional and temporary noncompliance with
technology based permit effluent limitations because of factors beyond the reasonable control of
Seymour Johnson AFB. An upset does not include noncompliance to the extent caused by
operational error, improperly designed treatment or control facilities, inadequate treatment or
control facilities, lack of preventive maintenance, or careless or improper operation.

44. Vegetative Buffer

Vegetative buffer has the same meaning as in 15A NCAC 02H .1002(22) and means an area of
natural or established vegetation directly adjacent to surface waters through which stormwater
runoff flows in a diffuse manner to protect surface waters from degradation due to development
activities.

45. Vegetative Conveyance

Vegetative conveyance means a permanent, designed waterway lined with vegetation that is used
to convey stormwater runoff at a non-erosive velocity within or away from a developed area. As
used herein, "conveyance system" shall not include a stormwater collection system.

46. Vehicle Maintenance Activity

Vehicle or vessel rehabilitation, mechanical repairs, painting, fueling, lubrication, cleaning
operations, or airport deicing operations.

47. Visible Sedimentation

Solid particulate matter, both mineral and organic, that has been or is being transported by water,
air, gravity, or ice from its site of origin which can be seen with the unaided eye.

48. 25-year, 24 hour storm event

The maximum 24-hour precipitation event expected to be equaled or exceeded, on the average,
once in 25 years.