NCS000520_Permit issuance_20000414

—STORM WATER -DIVISION CODING -SHEET
PERMIT NO.
DOC TYPE
FINAL PERMIT
❑ MONITORING INFO
❑ APPLICATION
❑ COMPLIANCE
❑ OTHER
DOC DATE
❑ D"b bb Ll !--I
YYYY M M D D

ERIC STROMBERG
NC STATE PORTS AUTH -- MOREHEAD CITY
2202 BURNETT BOULEVARD
WILMINGTON, NC 28401
Subject:
Dear Mr. Stromberg:
Y
' State of North Carolina
Department of Environment
L 7-
:.
and Natural Resources
Division of Water Quality
James B. Hunt, Jr., Governor
Bill Holman, Secretary �,?, r �Q
Kerr T. Stevens, Director °1,O,
2000
cvVGVI-€4 Wr 44v_
14 -fVf1:5; pevrkw �-
1JPDES Sto5pweta—Perrmt,]Renewal
NC StatePorts Auth — Morehead City
Permikillumber NCS000173'
Cartere �County__,�
NCDENR
NORTH CAROLINA DEPARTMENT OF
ENVIRONMENT AND NATURAL RESOURCES
In response to your renewal application for continued coverage under NPDES stormwater
permit NCS000173, the Division of Water Quality (DWQ) is forwarding herewith the subject
state - NPDES permit. This permit is issued pursuant to the requirements of North Carolina
General Statute 143-215 .1 and the Memorandum of Agreement between North Carolina and the
US Environmental Protection agency dated December 6, 1983.
Please note that the Division has revised the analytical monitoring strategy for individual
stormwater permits. Based on a review of the permit monitoring data received to date, the
analytical monitoring measurement frequencies have been changed and cut-off concentrations .
have been removed. These changes will be implemented for all second term individual
stormwater permits with analytical monitoring requirements. For those permits with analytical
monitoring requirements, Part II - Monitoring, Controls, and Limitations for Permitted
Discharges has been modified to reflect the change in monitoring strategy.
The qualitative monitoring strategy remains the same as the first term of the permit.
Please note that the semi-annual qualitative monitoring is a requirement of the permit. Failure to
complete the monitoring as required is a violation of the permit and any permit noncompliance
constitutes a violation of the CIean Water Act. Reference Part III, Section A, Item 2 "Duty to
Comply", Item 9 "Penalties for Tampering " and Item 10 "Penalties for Falsification of Reports"
of your permit for further information.
If any parts, measurement frequencies or sampling requirements contained in this permit
are unacceptable to you, you have the right to an adjudicatory hearing upon written request
within thirty (30) days following receipt of this letter. This request must be in the form of a
written petition, conforming to Chapter 150B of the North Carolina General Statutes, and filed
with the Office of Administrative Hearings, Post Office Drawer 27447, Raleigh, North Carolina
27611 -7447. Unless such demand is made, this decision shall be final and binding.
Please take notice this permit is not transferable. Part III, B.2. addresses the requirements
to be followed in case of change in ownership or control of this discharge.
1617 Mail Service Center, Raleigh, North Carolina 27699-1617 Telephone [phone] FAX [phone]
An Equal Opportunity Affirmative Action Employer 50% recvclerll 10% C)C)Rt-( ftnerrmor ram. �-
2000
cvVGVI-€4 Wr 44v_
14 -fVf1:5; pevrkw �-
1JPDES Sto5pweta—Perrmt,]Renewal
NC StatePorts Auth — Morehead City
Permikillumber NCS000173'
Cartere �County__,�
NCDENR
NORTH CAROLINA DEPARTMENT OF
ENVIRONMENT AND NATURAL RESOURCES
In response to your renewal application for continued coverage under NPDES stormwater
permit NCS000173, the Division of Water Quality (DWQ) is forwarding herewith the subject
state - NPDES permit. This permit is issued pursuant to the requirements of North Carolina
General Statute 143-215 .1 and the Memorandum of Agreement between North Carolina and the
US Environmental Protection agency dated December 6, 1983.
Please note that the Division has revised the analytical monitoring strategy for individual
stormwater permits. Based on a review of the permit monitoring data received to date, the
analytical monitoring measurement frequencies have been changed and cut-off concentrations .
have been removed. These changes will be implemented for all second term individual
stormwater permits with analytical monitoring requirements. For those permits with analytical
monitoring requirements, Part II - Monitoring, Controls, and Limitations for Permitted
Discharges has been modified to reflect the change in monitoring strategy.
The qualitative monitoring strategy remains the same as the first term of the permit.
Please note that the semi-annual qualitative monitoring is a requirement of the permit. Failure to
complete the monitoring as required is a violation of the permit and any permit noncompliance
constitutes a violation of the CIean Water Act. Reference Part III, Section A, Item 2 "Duty to
Comply", Item 9 "Penalties for Tampering " and Item 10 "Penalties for Falsification of Reports"
of your permit for further information.
If any parts, measurement frequencies or sampling requirements contained in this permit
are unacceptable to you, you have the right to an adjudicatory hearing upon written request
within thirty (30) days following receipt of this letter. This request must be in the form of a
written petition, conforming to Chapter 150B of the North Carolina General Statutes, and filed
with the Office of Administrative Hearings, Post Office Drawer 27447, Raleigh, North Carolina
27611 -7447. Unless such demand is made, this decision shall be final and binding.
Please take notice this permit is not transferable. Part III, B.2. addresses the requirements
to be followed in case of change in ownership or control of this discharge.
1617 Mail Service Center, Raleigh, North Carolina 27699-1617 Telephone [phone] FAX [phone]
An Equal Opportunity Affirmative Action Employer 50% recvclerll 10% C)C)Rt-( ftnerrmor ram. �-

' Paze 2
s
This permit does not affect the legal requirements to obtain other permits which may be
required by the Division of Environmental Management or permits required by the Division of
Land Resources, Coastal Area Management Act or any other Federal or Local governmental
permit that may be required.
If you have any questions concerning this permit, please contact Darren England at
telephone number 919/733-5083 ext. 545
Sincerely,
rpull:
for Kerr T. Stevens
cc: Mr. Roger O. Pfaff, EPA
Central Files
Wilmington Regional Office
Storm Water General Permits Unit

Permit No. NCS000173
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
DIVISION OF WATER QUALITY
PERMIT
TO DISCHARGE STORMWATER UNDER THE
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM
In compliance with the provisions of North Carolina General Statute I43-215.I, other lawful standards and
regulations promulgated and adopted by the North Carolina Environmental Management Commission, and the
Federal Water Pollution Control Act, as amended,
North Carolina State Ports Authority
is hereby authorized to discharge stormwater from a facility located at
Morehead City Terminal
113 Arendell Street
Morehead City, NC
Carteret County
to receiving waters designated as the Newport River and Bogue Sound, class SC streams, in the White Oak River
Basin in accordance with the discharge limitations, monitoring requirements, and other conditions set forth in -Parts 1,
II, 111, IV, V and VI hereof.
This permit shall become effective May 1, 2000.
Ibis,permit-and_the.authorization to_discharge shall exgire_at_midht on April'30; 200i.
Signed this day April 14, 2000,
for Kerr T. Stevens, Director
Division of Water Quality
By the Authority of the Environmental Management Commission

Permit No. NCS000173
ti
TABLE OF CONTENTS
PART I INTRODUCTION
Section A.
Individual Permit Coverage
Section B:
Permitted Activities
Section C:
Location Map
PART HMONITORING, CONTROLS, AND LIMITATIONS FOR PERMITTED DISCHARGES
Section A:
Stormwater Pollution Prevention Plan
Section B:
AnalyticaI Monitoring Requirements
Section C:
Qualitative Monitoring Requirements
Section D:
On -Site Vehicle Maintenance Monitoring Requirements
PART III
STANDARD CONDITIONS
Section A:
Compliance and Liability
1. Compliance Schedule
2. Duty to Comply
3. Duty to Mitigate
4. Civil and Criminal Liability
5. Oil and Hazardous Substance Liability
b. Property Rights
7. Severability
S. Duty to Provide Information
9. Penalties for Tampering
10. Penalties for Falsification of Reports
Section B:
General Conditions
1. Individual Permit Expiration
2. Transfers
3. Signatory Requirements
4. Individual Permit Modification, Revocation and Reissuance, or Termination
5. Permit Actions
i

Permit No. NCS000173
Section C: Operation and Maintenance of Pollution Controls
I .
Proper Operation and Maintenance
2.
Need to Halt or Reduce Not a Defense
3.
Bypassing of Stormwater Control Facilities
Section D: Monitoring
and Records
1.
Representative Sampling
2.
Recording Results
3.
Flow Measurements
4.
Test Procedures
5.
Representative Outfall
6..
Records Retention
7.
Inspection and Entry
Section E: Reporting Requirements
1.
Discharge Monitoring Reports
2.
- Submitting Reports
3.
Availability of Reports
4.
Non-Stormwater Discharges
5.
Planned Changes
6.
-Anticipated Noncompliance
7.
Bypass
8.
Twenty-four Hour Reporting
9.
Other Noncompliance
10.
Other Information
PART N LIMITATIONS REOPENER
PART V ADMIMSTERING AND COMPLIANCE MONITORING FEE REQUIREMENTS
PART VI DEFINITIONS
H

Permit No. NCS000173
PART I INTRODUCTION
SECTION A: INDIVIDUAL PERMIT COVERAGE
During the period beginning on the effective date of the permit and lasting until expiration, the permittee is
authorized to discharge stormwater associated with industrial activity. Such discharges shall be controlled, limited
and monitored as specified in this permit.
SECTION B: PEILNHTTED ACTIVITIES
Until this permit expires or is modified or revoked, the permittee is authorized to discharge stormwater to the surface
waters of North Carolina or separate storm sewer system which has been adequately treated and managed in
accordance with the terms and conditions of this individual permit. All discharges shall be in accordance with the
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.
This permit does not relieve the peimittee from responsibility for compliance with any other applicable federal, state,
or local law, rule, standard, ordinance, order, judgment, or decree.
Part I Page 1 of 2

Permit No. NC5000173
SECTION C: LOCATION MAP
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Pan I Page 2 of 2

Permit No. NCS000173
PART II i%IONITORING, CONTROLS, AND LIMITATIONS FOR PERMITTED DISCHARGES
SECTION A: STORNINVATER.EOLLU.TION.PRE'%TNTION.ELAN
TheLpermittee=shall.-deli_glop;a-Stormwaten.P5uiition.PYevention.Plan; herein after referred to as the Plan. This Plan
shall be considered public information in accordance with Part III, Standard Conditions, Section E, Paragraph 3 of
this individual permit. The Plan shall include, at a minimum, the following items:
I'' Site Plan. The site plan shall provide a description of the physical facility and the potential pollutant
sources which may be expected to contribute to contamination of stormwater discharges. The site plan shall
contain the following:
(a) A general location trap (USGS quadrangle map or appropriately drafted equivalent map),
showing the facility's location in relation to transportation routes and surface waters, the name of
the receiving waters) to which the stormwater outfall(s) discharges, or if the discharge is to a
municipal separate storm sewer system, the name of the municipality and the ultimate receiving
waters; and accurate latitude and longitude of the point(s) of discharge.
(b) A narrative description of storage practices, loading and unloading activities, outdoor process
areas, dust or particulate generating or control processes, and waste disposal practices.
(c) A site map drawn to scale with the distance legend indicating location of industrial activities
(including storage of materials, disposal areas, process areas and loading and unloading areas),
drainage structures, drainage areas for each outfall and activities occurring in the drainage area,
building locations, existing BMPs and impervious surfaces, and the percentage of each drainage
area that is impervious. For each outfall, a narrative description of the potential pollutants which
could be expected to be present in the stormwater discharge.
(d) A list of significant spills or leaks of pollutants that have occurred at the facility during the 3
previous years and any corrective actions taken to mitigate spill impacts.
(e) Certification that the stormwater outfalls have been evaluated for the presence of non-stormwater
discharges. The certification statement will be signed in accordance with the requirements found
in Part III, Standard Conditions, Section B, Paragraph 3.
('Stormwater'Manaaemeent'PI�The stormwater management plan shall contain a narrative description of
the materials management practices employed which control or minimize the exposure of significant
materials to stormwater, including structural and nonstructural measures. The stormwater management
plan, at a minimum, shall incorporate the following:
(a) Feasibility Study. A review of the technical and economic feasibility of changing the methods of
operations and/or storage practices to eliminate or reduce exposure of materials and processes to
stormwater. Wherever practical, the permittee shall prevent exposure of all storage areas, material
handling operations, and manufacturing or fueling operations. In areas where elimination of
exposure is not practical, the stormwater management plan shall document the feasibility of
diverting the stormwater runoff away from areas of potential contamination.
(b) Secondary Containment Schedule. A schedule to provide secondary containment for bulk storage
of liquid materials, storage of Section 3I3 of Title III of the Superfund Amendments and
Reauthorization Act (SA .A) water priority chemicals, or storage of hazardous substances to
prevent leaks and spills from contaminating stormwater runoff. If the secondary containment
devices are connected directly to stormwater conveyance systems, the connection shall be
controlled by manually activated valves or other similar devices [which shall be secured with a
Part II Page I of 5

Permit No. NCS000173
locking mechanism] and any stormwater that accumulates in the containment area shall be at a
minimum visually observed for color, foam, outfall staining, visible sheens and dry weather flow,
prior to release of the accumulated stormwater. Accumulated stormwater shall be released if found
to be uncontaminated by the material stored within the containment area. Records-documenting'7
f the -re
(c) BMP Summary, f.A_narrativedescripiion-shall:be.pfovided.af.Best:IVlana,aetrienfP.ractices:(IIMPs)'
to be considered such as, but not limited to, oil and grease separation, debris control, vegetative
filter strips, infiltration and stormwater detention or retention, where necessary. The need for
structural BMPs shall be based on the assessment of potential of sources to contribute significant
quantities of pollutants to stormwater discharges and data collected through monitoring of
stormwater discharges.
SEl:Preventio'n an"d:Response-P.lii—n77The Spill Prevention and Response Plan (SPRP) shall incorporate an
assessment of potential pollutant sources based on a materials inventory of the facility. Facility personnel
(or team) responsible for implementing the SPRP shall be identified. rA:responsible:person=shall=be'on=site)
at-all-times:during-facility_operations_tbat:have--the.potential.to:contaminate.stormwater.r nnoff rhrotigh;s}pilis7
or.exposure-of-:R aierials:associated.with:the:facihty_opezati"ons ZThe SPRP must be site stormwater specific.
i:berefore,-a,SPGGplawmay°be-a-component=of the SPRP; but=maynor-be=sufficient-t oo cc ple[elyaddresse
the•s� tormi,�,ater_aspects:of dx.SP-RP `The common elements of.the SPCC with the SPRP may be
incorporated by reference into the SPRP.
4. preventative maintenance program shall be
developed. The pr stnShall-document"chedulsof inspectons-andTage—nance activiiies.ofsormwater
—ontroeer_cleiu y—is.mt. t--nong.aras.anru
schea`ules-of"these —areas incorporated.iuto t}ie-program.-�
5. Employee Training. Training schedules shall be developed nd training.provided.at.a-minirnurn.on.an
personnel-invo� lved^ in any'of tl
crunoff Icility personnel.(or-
6. Responsible Party"The Stormwater'Poilutioo Prevention Plan shall.idendfy.a•specific.positi S)
fesponsible.fw`-the_overali.coordiiiation,.development,.hnplementation,.and.reyis'ion to`.tlT Plan.
Responsibilities for all components of the Plan shall be documented and position assignments provided.
4.
7. IPlan.Amendment. The.permittee.shall amend the Plan whenever.there.is a.change.in.design,.construction,
operation, o maintenance which has a significant effect on the potential for the discharge of pollutants to
surface waters. The-Stormwater-Pollution-Prevention-Plan-shall-b re eviFw-edand upda'tedbn an -annual
basis.
The Director may notify the permittee when the Plan does not meet one or more of the minimum
requirements of the permit. Within 30 days of such notice, the permittee shall submit a time schedule to the
Director for modifying the Plan to meet minimum requirements. The permittee shall provide certification in
writing (in accordance with Part III, Standard Conditions, Section B, Paragraph 3) to the Director that the
changes have been made.
8. FaciiityInspecdon_Program.._Facilities_are,required to L spect_a11 stormwater-systems•on-at-least-a
time
any_
, subsequent.ma mtenance-activit
'Pollution-P
Part II Page 2 of 5

Permit No. NCS000173
Stormn'ater_discharge characterisEic-monitoring.as.required-in-Part-Il_of•this-pe—t:shall -be performed in
(a-cdiiion-t o-faciiity'inspections.
Implementation: The pernttee shall document all,monitoring,.measuremen ts;.uupections`and:maintenance
activities-and,training-provided•toerriployees, including the log.of-the-sampling.daiK= nd-of activities -taken
to- imp] ement-BMPs associated with.the-industrial. activities, incltrding_vehicle-maintenance.acttvitres._Such
-ocumeritation shall.be.kept.on-sifo- fir te-r-a- eeriod.oeea yrs an_d_made avai]able•to•the-Director-or-him_
auth� od'represe'ntative im`mediFt-eIy upon.request.
SECTION B: ANALYTICAL MONITORING REQUIREMENTS
During the period beginning on the effective date of the permit and lasting until expiration, the permittee is
authorized to discharge stormwater subject to the provisions of this permit. Analytical monitoring of stormwater
discharges shall be performed as specified below in Table 1.
All analytical monitoring shall be performed during a representative storm event. The required monitoring will
result in a rrniumum of 4 aita] [rcal..samplings.being.conducted-over•the-term-of the-permit-at-each•stormwater/
drsclsarge outfall ). The permittee shall complete the minimum 4 analytical samplings in accordance with the
schedule specified below in Table 2.
Table 1. Analvticai Monitoring Requirements
I1iscbarge
Cbasat#enshcs.�;
a
,iItuts..
Me u menti61-'r`Saple
FF.r uentT`
e2L"o`cafto
5 mi
Chemical Oxygen Demand
mg/l
Quarterly- 4`s year
Grab
SD03
Total Suspended Solids
mblI
Quarterly- 4`s year
Grab
SD05
Total Nitrogen
ms/1
Quarterly- 4'h year
Grab
SD06
Total Phosphorus
ms/l
Quarterly- 4's year
Grab
SD03
Total Rainfall4
inches
Quarterly- 4`h year
Event Duration4
minutes
Quarterly- 0 year
Total Flow4
MG
Quarterly- 4`s year
_
SDO
Footnotes-
1 Measurement Frequency: Once per quarter during the 40 year of the permit term. A year is defined as the 12
month period beginning on the month and day of issuance of the Permit. See Table 2 for schedule of monitoring
periods.
If the stormwater runoff is controlled by a stormwater detention pond, a grab sample of the discharge from the
pond shall be collected within the first 30 minutes of discharge. If the detention pond discharges only in response
to a storm event exceeding a ten year design storm, then no analytical monitoring is required and only qualitative
monitoring shall be performed.
3 Sample "Location: Samples shall be collected at stormwater discharge outfaIls 103, 302, 506B 1, 510, 803, and
907
4 For each sampled representative storm event the total precipitation, storm duration, and total flow must be
monitored. Total flow shall be either; (a) measured continuously, (b) calculated based on the amount of area
Part II Page 3 of 5

Permit No. NCS00017.3
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.
5 Total Suspended Solids sampling is required at SDO 803 only
b Total Nitrogen sampling is required at SDO 103 only
Table 2. Monitoring schedule
'lVioiiitoruig perrod,Saznple
umb4
Star#rt
Year 4 - 0 quarter
1
May 1, 2003
July 31, 2003
Year 4 - 2nd quarter
2
August 1, 2003
October 31, 2003 .
Year 4 - 3`d quarter
3
November 1, 2003
January 31, 2004
Year 4 - 4'h quarter
4
February 1, 2004
April 30, 2004
SECTION C: QUALITATIVE MONITORING REQUIREMENTS
Qualitative monitoring requires a visual inspection of each stormwater outfall regardless of representative outfall
status and shall be performed as specified below in Table 3. Qualitative monitoring is for the purpose of evaluating
the effectiveness of the Stormwater Pollution Prevention Plan (SPPP) and assessing new sources of stormwater
pollution. No analytical tests are required. Qualitative monitoring of stormwater outfalls does not need to be
performed during a representative storm event.
maintained witlithe-Storrnwater.Pollutio_n.
All qualitative monitoring will be performed twice per year, once in the spring (April - June) and once in the fall
(September - November).
Table 3. Qualitative Monitoring Requirements
7Disch rge Charae#ensttrs
�`�Fq ncy
ooriitg n ocaftn
Color
Semi -Annual
SDO
Odor
Semi -Annual
SDO
Clariy
Sena -Annual
SDO
Floating Solids
Semi -Annual
SDO
Su ended Solids
Semi -Annual
SDO'
Foam
Senn -Annual
SDO
Oil Sheen
Semi -Annual
SDO
Other obvious indicators
of stormwater pollution
Semi -Annual
SDO
Footnotes:
I Monitoring Location: Qualitative monitoring shall be performed at each stormwater discharge outfall (SDO)
regardless of representative outfall status.
Cr
Part II Page 4 of 5

Permit No. NCS000173
SECTION D: ON -SITE VEHICLE MAINTENANCE MONITORING REQUIREMENTS
Facilities which have any vehicle maintenance activity occurring on -site which uses more than 55 gallons of new
motor oil per month when averaged over the calendar year shall -perform analytical monitoring as specified below in
`~`'- " J erforfned,a[.all_outfalls-which•dischar e.stormwater-runoff from vehicle
Table 4_ This.marutormg•shall:be_p g
lmaintenance areas.
All analytical monitoring shall be performed dufing a representative storm event. The required monitoring will.
result in a minimum of 4 analytical samplings being conducted over the term of the permit at each stormwater
discharge outfall (SDO) ;which discharges stormwater runoff'from vehicle maintenance areass'The permittee shall
'- complete the minimum 4analytical samplings in accordance with the schedule specified in Table 2 (Part II, Section
B),
Table 4. Analvtical Monitoring Requirements for On -Site Vehicle -Maintenance
rDtscharge:Charactensttcs¢ i
Vrt..Yl' iiii L • •iY�...'
•-��;^ ntts
LRt
eas�remen �
Ss
l
FreQu en
�`Sarrtple
1 e?
"�Sampl���
_
1Zocaiia
H '
standard
Quarterly- 4's year
Grab
SDO
Oil and Grease
mg/l
Quarterly- 4a` Year
Grab
SDO
Total suspended Solids
M&A
Quarterly- 4`s year
Grab
SDO
New Motor Oil Usage
gallons/month
Quarterly- 41s year
Estimate
-
TotaI Flow4
MG
Quarterly- 4`s year
Grab
SDO
Footnotes:
I Measurement Frequency: Once per quarter during the 41' year of the permit term A year is defined as the 12
month period beginning on the month and day of issuance of the Permit. See Table 2 for schedule of monitoring
periods.
2 If the stormwater runoff is controlled by a stormwater detention pond, a grab sample of the discharge from the .
pond shall be collected within the first 30 minutes of discharge. If the detention pond discharges only in response
to a storm event exceeding a ten year design storm, then no analytical monitoring is required and only qualitative
monitoring shall be performed.
3 Sample acation Samples"shall'be collected ai'representative outfalls506B and d,803. These two stormwater
=77discharge_outfills (SD�, that.discharges.stonnwater-runoff-from area(s)-where-vehicle maintenance activities
occur, bave_been designated as.representative outfalls.
4 Total flow shall be; (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. Total precipitation and duration of the rainfall event
measured shall result from the sampled representative storm event.
Part II Page 5 of 5

Permit No. NCS000173
PART III STANDARD CONDITIONS FOR NPDES STORMWATER INDIVIDUAL PERMITS
SECTION A: COMPLI.9NCE AND LIABILITY
Compliance Schedule
The permittee shall comply with Limitations and Controls specified for stormwater discharges in
accordance with the following schedule:
TEE— Secondary
it, as specified_in.P.at
.of the. effective. date.
Proposed Facilities: The Stormwater Pollution Prevention Plan shall be developed and implemented prior to
the beginning of discharges from the operation of the industrial activity and be updated thereafter on an
annual basis. Secondary containment, as specified in Part II, Section A, Paragraph 2(b) of this permit shall
be accomplished prior to the beginning of discharges from the operation of the industrial activity.
Dutv to Comply
The permittee roust comply with all conditions of this individual 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 a permit upon renewal application.
a. The permittee 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 $25,000 per day for each violation. Any person who negli;ently 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 $10,000 per violation with the maximum
amount not to exceed $125,000. [Ref: Section 309 of the Federal Act 33 USC 1319 and 40 CFR
122.41(a).]
Under state law, a daily civil penalty of not more than ten thousand dollars ($10,000) 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 Director for violating section 301,
302, 306, 307, 308, 318, or 405 of the Act, or any permit condition or limitation implementing any
of such sections in a permit issued under section 402 of the Act. Administrative penalties for Class
I violations are not to exceed $10,000 per violation, ►vith the maximum amount of any Class I
penalty assessed not to exceed $25,000. Penalties for Class 11 violations are not to exceed $10,000
per day for each day during which the violation continues, with the maximum amount of any Class
II penalty not to exceed $125,000.
Part III Page I of 8 Pages

Permit No. NCSOOOI73
' 3. - Duty to Mitigate
The pernuttee shall take all reasonable steps to minimize or prevent any discharge in violation of this
individual permit which has a reasonable likelihood of adversely affecting human health or the environment.
4. Civil and Criminal Liabili
Except as provided in Part III, Section C of this permit regarding bypassing of stormwater control facilities,
nothing in this individual permit shall be construed to relieve the permittee from any responsibilities,
liabilities, or penalties for noncompliance pursuant to NCGS 143-215.3,143-215.6A, 143-215.613, 143-
215.6C or Section 309 of the Federal Act, 33 USC 1319. Furthermore, the permittee is responsible for
consequential damages, such as fish kills, even though the responsibility for effective compliance may be
temporarily suspended.
Oil and Hazardous Substance Liabili
Nothing in this individual permit shall be construed to preclude the institution of any legal action or relieve
the permittee from any responsibilities, liabilities, or penalties to which the perminee is or may be subject to
under NCGS 143-215.75 et seq. or Section 311 of the Federal Act, 33 USC 1321.
Property Rights
The issuance of this individual 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.
Severability
The provisions of this individual permit are severable, and if any provision of this individual permit, or the
application of any provision of this individual permit to any circumstances, is held invalid, the application
of such provision to other circumstances, and the remainder of this individual permit, shall not be affected
thereby.
Duty to Provide Information
The permittee 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
permit issued pursuant to this individual permit or to determine compliance with this individual permit. The
permittee shall also furnish to the Director upon request, copies of records required to be kept by this
individual permit.
9. Penalties for Tamoerin�
-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 individual 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 that $20,000 per day of
violation, or by imprisonment of not more than 4 years, or both.
10. 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 individual
Part III Page 2 of 8 Pages

Permit No. NCS000173
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.
SECTION B: GENERAL CONDITIONS
Individual Permit Ex iration
The permittee is not authorized to discharge after the expiration date. In order to receive automatic
authorization to discharge beyond the expiration date, the permittee shall submit forms and fees as are
required by the agency authorized to issue pernvts no later than 180 days prior to the expiration date. Any
perrrtittee that has not requested renewal at least 180 days prior to expiration, or any permittee that does not
have a permit after the expiration and -has not requested renewal at least 180 days prior to expiration, will be
subjected to enforcement procedures as provided in NCGS § 143-2153.6 and 33 USC I251 et. seq.
2. Transfers
This permit`is'not-transfemblvto-any.person•except,after notice,to-and-approval_b.y the.Director. The
Director may require modification or revocation and, reissuance of the permit to change the name and
incorporate such other requirements as may be necessary under the Clean Water Act.~Permittee is required
to notify the Division in writing in the event the permitted facility is sold or closed.
Sisrnatory Requirements
All applications, reports, or information submitted to the Director shall be signed and certified.
a. All applications to be covered under this individual permit shall be signed as follows:
(1) For a corporation: by a responsible corporate officer. For the purpose of this Section, a
responsible corporate officer means: (a) a president, secretary, treasurer or vice president
of the corporation in charge of a principal business function, or any other person who
performs similar policy or decision making functions for the corporation, or (b) the
manager of one or more manufacturing production or operating facilities employing more
than 250 persons or having gross annual sales or expenditures exceeding 25 million (in
second quarter 1980 dollars), if authority to sign documents has been assimed or
delegated to the manager in accordance with corporate procedures.
(2) For a partnership or sole proprietorship: by a general partner or the proprietor,
respectively; or
(3) For a municipality, State, Federal, or other public agency: by either a principal executive
officer or ranking elected official.
b. All reports required by the individual permit and other information requested by the Director shall
be signed by a person described above or by a duly authorized representative of that person. A
person is a duly authorized representative only if-
(1) The authorization is made in writing by a person described above;
(2) The authorization specified either an individual or a position having responsibility for the
overall operation of the regulated facility or activity, such as the position of plant
manager, operator of a well or well field, superintendent, a position of equivalent
responsibility, or an individual or position having overall responsibility for environmental
Part III Page 3 of 8 Pages

Permit No. NCS000173
matters for the company. (A duly authorized representative may thus be either a named
individual or any individual occupying a named position.); and
(3) The written authorization is submitted to the Director.
Any person signing a document under paragraphs a. or b. of this section shall make the following
certification:
"I certify, under penalty of law, 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 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 submitting false information,
including the possibility of fines and imprisonment for knowing violations."
4. Individual Permit Modification. Revocation and Reissuance, or Termination
The issuance of this individual permit does not prohibit the Director from reopening and modifying the
individual permit, revoking and reissuing the individual permit, or terminating the individual 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.
Permit Actions
The permit may be modified, revoked and reissued, or terminated for cause. The notification of planned
changes or anticipated noncompliance does not stay any individual permit condition.
SECTION C: OPERATION AND MAINTENANCE OF POLLUTION CONTROLS
Proper Operation and Maintenance
The permittee shall at all times properly operate and maintain all facilities and systems of treatment and
control (and related appurtenances) which are installed or used by the permittee to achieve compliance with
the conditions of this individual 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 a permittee only when the operation
is necessary to achieve compliance with the conditions of this individual permit.
2. Need to Halt or Reduce Not a Defense
It shall not be a defense for a permittee 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 individual pemait.
B assing of Stormwater Control Facilities
Bypass is prohibited and the Director may take enforcement action against a permittee for bypass unless:
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
Part III Page 4 of 8 Pages .

Permit No. NCS000173
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
The pernuttee submitted notices as required under, Part III, Section E of this permit.
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 D; MONITORING AND RECORDS
1. Representative Sampling
Camples_C.ollected:and:rneasure" m nts-taken,_as.required.herein; shall be characteristic-of-the-vAume.and
nai�tore.of-the.perniitted:discharba) Analytical sampling shall be performed during a representative storm
event. Samples shall be taken on a day and time that is characteristic of the discharge. All samples shall be
taken before the discharge joins or is diluted by any other waste stream, body of water, or substance.
Monitoring points as specified in this permit shall not be changed without notification to and approval of
the Director.
2. Recording Results
For each measurement, sample, inspection or maintenance activity performed or collected pursuant to the
requirements of this individual permit, the perminee shall record the following information:
a. The date, exact place, and time of sampling, measurements, inspection or maintenanceactivity;
b. The individual(s) who performed the sampling, measurements, inspection or maintenance activity;
C. The date(s) analyses were performed;
d. The individual(s) who performed the analyses;
The analytical techniques or methods used; and
f The results of such analyses.
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.
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.
To meet the intent of the monitoring required by this individual 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.
Part III Page 5 of 8 Pages

Permit No. N-CS000173
5. Representative Outfall
If a facility has multiple discharge locations with substantially identical stormwater discharges that are
required to -be sampled, the permittee may petition the Director for representative outfaIl status. If it is
established that the stormwater discharges are substantially identical and the permittee is granted
representative outfall starus, then sampling requirements may be performed at a reduced number of outfalls.
6. Records Retention
Visual monitoring sfiaIl 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. The
pennittee 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 individual permit for a period of at feast 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.
7. Inspection and Entry
The permittee 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 systetn, 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 maybe
required by law, to;
a. Enter upon the permittee's premises where a reg-ulated facility or activity is located or conducted;
or where records must be kept under the conditions of this individual permit;
b. Have access to and copy, at reasonable times, any records that must be kept under the conditions of
this individual permit;
C. Inspect at reasonable times any facilities, equipment (incIuding monitoring and control equipment),
practices, or operations regulated or required under this individual permit; and
d. Sample or monitor at reasonable times, for the purposes of assuring individual permit compliance
or as otherwise authorized by the Clean Water Act, any substances or parameters at any location.
SECTION E: REPORTING REQIUTREMENTS
1. Discharge Monitoring Repo
Samples analyzed in accordance with the terms of this permit shall be submitted to the Division on
Discharge Monitoring Report forms provided by the Director. Submittals shall be received by the DiNision
no later than 30 days from the date the facility receives the sampling results from the laboratory.
2. Submitting Reports
Duplicate signed copies of all reports required herein, shall be submitted to the following address:
Division of Water Quality
Water Quality Section
ATTENTION: Central Files
16I7 Mail Service Center
Raleigh, North Carolina 27699-1617
Part III Page 6 of 8 Pages

Permit No. NCS000173
3. Availabilitv of Reports.
Except for data determined to be confidential under NCGS 143-215.3(a)(2) or Section 308 of the Federal
Act, 33 liSC 1318, all reports prepared in accordance with the terms shall be available for public inspection
at the offices of the Division of Water Quality. 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 143-215.6E or in Section 309 of the Federal Act,
4. Non-Stormwater Discharees
If the storm event monitored in accordance with this individual permit coincides .tith a non-stormwater
discharge, the permittee shall separately monitor all parameters as required under the non-stormwater
discharge permit and provide this information with the stormwater discharge monitoring report.
Planned Changes
The permittee 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 individual permit or subject to
notification requirements under 40 CFR Part 122.42 (a).
Anticipated NoncopMliance
The permittee 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 individual permit requirements.
7. Bypass
a_ Anticipated bypass. If the permittee 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 affect of the bypass.
b. Unanticipated bypass. The permittee shall submit notice within 24 hours of becoming aware of an
unanticipated bypass.
Twentv-four Hour Reporting
The permittee shall report to the central office or the appropriate regional office any noncompliance which
may endanger health or the environment. Any information shall be provided orally within 24 hours from
the time the permittee became aware of the circumstances. A written submission shall also be provided
within 5 days of the time the permittee 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.
9. Other Noncompliance
The permittee shall report all instances of noncompliance not reported under 24 hour reporting at the time
monitoring reports are submitted.
Part III Page 7 of 8 Pages

Permit No. NCS000173
10. Other Information
Where the permittee becomes aware that it failed to submit any relevant facts in an application for an
individual permit or in any report to the Director, it shall promptly submit such facts or information.
Part III Page 8 of 8 Pages

Permit No. NCS000173
PART IV LIMITATIONS REOPENER
This individual permit shall be modified or alternatively, revoked and reissued, to comply with any applicable
effluent guideline or grater 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 individual
permit; or
b. Controls any pollutant not limited in the individual permit.
The individual permit as modified or reissued under this paragraph shall also contain any other requirements in the
Act then applicable.
PART V ADMINISTERING AND COMPLIANCE MONITORING FEE
REQUIREMENTS
The permittee must pay the administering and compliance monitoring fee within 30 (thirty) days after being billed by
the Division. Failure to pay the fee in timely manner in accordance with 15A NCAC 2H .0105(b)(4) may cause this
Division to initiate action to revoke the Individual Permit.
PART VI 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. Allowable Non-Stormwater Discharges
This permit regulates stormwater discharges. Non-stormwater discharges which shall be allowed in the
stormwater conveyance system are:
(a) All other discharges that are authorized by a non-stormwater NPDES permit.
(b) Uncontaminated groundwater, foundation drains, air -conditioner condensate without added
chemicals, springs, discharges of uncontaminated potable water, waterline and fire hydrant
flushings, water from footing drains, flows from riparian habitats and wetlands.
(c) Discharges resulting from fire -fighting or fire -fighting training.
4. Best Management Practices_(BMPs)
Measures or practices used to reduce the amount of pollution entering surface waters. BMPs may take the
form of a process, activity, or physical structure.
Parts IV, V and VI Page 1 of 5

Perrtvt No. NCS000173
5. . 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.
6. Bulk Storage of Liquid Products
Liquid rate 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.
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.
B. Division or DWO
The Division of water Quality, Department of Environment and Natural Resources.
4. Director
The Director of the Division of Water Quality, the permit issuing authority.
10. EMC
The North Carolina Environmental Management Commission.
11. Grab Sarrmle
An individual sample collected instantaneously. Grab samples that will be directly analyzed or qualitatively
monitored 'Must be taken witfiin the first 30 minutes_of di� s`hartre--?
12. Hazardous Substance
Any substance desipated under 40 CFR Part 1 l 6 pursuant to Section 311 of the Clean Water Act.
13. 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. V
14. Municipal Separate Storm Sewer Svstem
A. stormwater collection system within an incorporated area of local self-government such as a city or town"
15. 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.
Part V1 Page 2 of 5 Pages

Permit No. NCSOOOI73
16. Perrntittee
The onmer or operator issued a permit pursuant to this individual permit.
17. Point Source Discharge of Stormwater
Any discernible, 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.
18. Representative Storm Event
'storm.event-measuring.greater than 0-1- inches has occurred7A single storm event may contain up to 10 consecutive
hours of no precipitation. For example, if it rains for 2 hours without producing any collectable discharge, and then
stops, a sample maybe collected if a rain producing a discharge begins again within the next 10 hours.'
19. Representative Outfall Status
When it is established that the discharge of stormwater runoff from a single outfali is representative of the
discharges at multiple outfalls, the DWQ may grant representative outfall status. Representative outfalI
status allows the permittee to perform analytical monitoring at a reduced number of outfalls.
20. 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.
21. Secondary Containment
Spill containment for the contents of the single largest tank within the containment structure plus sufficient
tiseeboard-to-allow-for-the-25-year,.24-hour-ston<n. ev, ent.
22. 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
That meet at least one of the following criteria:
(1) Is listed in Appendix D of 40 CFR part 122 on either 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.
Part VI Page 3 of 5 Pages

Permit No. NICS000173
23. Severe Property Damage
deans 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.
24. 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; fertilize sr pesticides; and waste products such as ashes,
slag and sludge that have the potential to be released with storm-a-ater discharges.
25. 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).
26. Stormwater Runoff
The floe- of water which results from precipitation and which occurs immediately following rainfall or as a
result of snowmelt.
27. 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
28. 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.
29. 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.
30. 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 outfali, 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.
31. Toxic Pollutant
Any pollutant listed as toxic under Section 307(a)(1) of the Clean Water Act.
Part VI Page 4 of 5 Pages

r' Permit No. NCS000173
32. ii2 et
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 the
permittee. An upset does not include noncompliance to the extent caused by operational error, improperly
desisned treatment or control facilities, inadequate treatment or control facilities, lack of preventive
maintenance, or careless or improper operation.
33. Vehicle Maintenance Activity
Vehicle rehabilitation, mechanical repairs, painting, fueling, lubrication, vehicle cleaning operations, or
airport deicing operations.
34. 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.
35. 25-vear. 24 hour storm event
The maximum 24-hour precipitation event expected to be equaled or exceeded, on the average, once in 25
years.
Part VI Page 5 of 5 Pages