Allen Steam Facility (8)

NCS000546
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
DIVISION OF WATER QUALITY
PERMIT
TO DISCHARGE STORMWATER UNDER THE
In compliance with the provisions of North Caroli enera , tute 143-215.1, other
lawful standards and regulations promulgated a*Or,
d by the North Carolina
Environmental Management Commission, anfeWater Pollution Control Act, as
amended,
olinas, LLC
is hereby authoriz to 'sc � rge stormwater from a facility located at
/Allen Steam Station
253 Plant Allen Road
Belmont, NC
Gaston County
to receiving waters designated as Catawba and Catawba South Fork Rivers, class WS -V, B
streams in the Catawba River Basin, in accordance with the discharge limitations,
monitoring requirements, and other conditions set forth in Parts I, II, III, and IV hereof.
Note: Draft Permit Dates are Approximate
This permit shall become effective [August 1, 2012].
This permit and the authorization to discharge shall expire at midnight on [July 31, 2017].
Signed this [271h ] day of [July 2012]
for Charles Wakild, P.E., Director
Division of Water Quality
By the Authority of the Environmental Management Commission

PART I
Section A
Section B
Section C
PART II
Section A•
Section B:
Section C•
Section D:
TABLE OF CONTENTS
INTRODUCTION
Individual Permit Coverage
Permitted Activities
Location Map
MONITORII`:G, CONTROLS,AND LIMIT '.
DISCHARGES
Stormwater Pollution Prevention la
Analytical Monitoring Req re n
Qualitative Mo toren qu r nts
Permit No NCS000546
PERMITTED
On -Site Vehicle in n Monitoring Requirements
PART III STANDARD C ITI S FOR NPDES STORMWATER INDIVIDUAL PERMITS
Section A: Compliance
and Liability
1.
Compliance Schedule
2
Duty to Comply
3.
Duty to Mitigate
4.
Civil and Criminal Liability
S.
Oil and Hazardous Substance Liability
6.
Property Rights
7.
Severability
8.
Duty to Provide Information
9.
Penalties for Tampering
10.
Penalties for Falsification of Reports
11.
Onshore or Offshore Construction
12
Duty to Reapply
1 ,
a

Permit No NC 5000546
Section B. General Conditions
1. Permit Expiration
2 Transfers
3. Signatory Requirements
4. Permit Modification, Revocation and Reissuance, or Termination
S. Permit Actions
6. Annual Administering and Compliance Monitoring Fee
Requirements
Section C• Operation and Maintenance of Polluto I ' trols
1 Proper Operation and MaKt
2. Need to Halt or Reduce Ne
3. Bypassing of Stormwat rcilities
Section D• Monitoring and Records
1 Representativ m i
2 Recor 'n e 1 it -
3 Flow M r e
4. Tes ' roced
S. Re sent ve Outfall
6. Re r . etention
7. Inspection and Entry
Section E: Reporting Requirements
1. Discharge Monitoring Reports
2. Submitting Reports
3 Availability of Reports
4. Non-Stormwater Discharges
S. Planned Changes
6. Anticipated Noncompliance
7. Spills
8. Bypass
9. Twenty-four Hour Reporting
10. Other Noncompliance
11. Other Information
PART IV DEFINITIONS
It

Permit No NCS000546
PART I INTRODUCTION
SECTION A: !ND!V!DL'A—' 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.
If industrial materials and activities are not exposed to prec.pitat:on or runoff as described
in 40 CFR §122.26(g), the facility may qualify for a No Ex os e Exclusion from NPDES
stormwater discharge permit requirements. Any o perator wishing to obtain a No
Exposure Exclusion must submit a No Exposure C ifi o of of Intent (NOI) form to
the Division; must receive approval by the Divisi st in, n no exposure conditions
unless authorized to discharge under a valid NPD s rmwater permit; and must recertify
the No Exposure Exclusion annually.
SECTION B: PERMITTED ACTIVITIES
Until this permit expires or is o fi o evoked, the permittee is authorized to discharge
stormwater to the surface wate o o - arolina or separate storm sewer system that
has been adequately treated d m na d in accordance with the terms and conditions of
this permit. All stormwate ischar 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. The stormwater discharges allowed by this permit shall not cause or contribute
to violations of Water Quality Standards.
This permit does not relieve the permittee 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

SKTION C: LOCATION MAP
Permit No NCS000546
Part I Page 2 of 2
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NCS000546
Duke Energy Carolinas, LLC
Allen Steam Station
jNT
Latitude. 350 11'25" N
F
Longitude: 810 00' 32" W
County- Gaston
S
Receiving Stream: Catavvba River
Stream Class: VVS-V, B
Map Scale 1:24, 000
Sub -basin: 03-08-37 (Catawba River Basin)
Facility Location__
Part I Page 2 of 2

Permit No NCS000546
PART II MONITORING, CONTROLS, AND LIMITATIONS FOR
PERMITTED DISCHARGES
SECTION A: STORMWATER POLLUTION PREVENTION PLAN
The permittee shall develop and implement a Stormwater Pollution Prevention Plan
(SPPP). The SPPP shall be maintained on site unless exempted from this requirement by
the Division. The SPPP is public information in accordance with Part III, Standard
Conditions, Section E, paragraph 3 of this permit. The SPPP shall include, at a minimum,
the following items:
1. Site Overview. The Site Overview shall provi
and the potential pollutant sources that may b
contamination of stormwater discharges. The
(a) A general location map (USGS quad
map), showing the facility's location
waters; the name of the receiving vii
d cri' tion of the physical facility
p t tkc
ribute to
�Overvi shall contain the following.
apvr appropriately drafted equivalent
►% transportation routes and surface
� iich the stormwater outfalls
discharge, or if the discharge is tm is � al separate storm sewer system, the
name of the municipali d inti receiving waters, and accurate latitude
and longitude of the poi �s st m ater discharge associated with industrial
activity. The general to r alternatively the site map) shall identify
whether any receivin ater r impaired (on the state's 303(d) list of impaired
waters) or if the sit i locat - in a watershed for which a TMDL has been
established, and i a, arameters of concern are.
(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. A narrative description of the potential pollutants that
could be expected to be present in the stormwater discharge from each outfall.
(c) A site map drawn at a scale sufficient to clearly depict: the site property boundary;
the stormwater discharge outfalls; all on-site and adjacent surface waters and
wetlands; industrial activity areas (including storage of materials, disposal areas,
process areas, loading and unloading areas, and haul roads); site topography and
finished grade; all drainage features and structures; drainage area boundaries and
total contributing area for each outfall; direction of flow in each drainage area;
industrial activities occurring in each drainage area; buildings; stormwater Best
Management Practices (BMPs); and impervious surfaces. The site map must
indicate the percentage of each drainage area that is impervious, and the site map
must include a graphic scale indication and north arrow.
(d) A list of significant spills or leaks of pollutants during the previous three (3) years
and any corrective actions taken to mitigate spill impacts.
Part II Page 1 of 14

Permit No NICS000546
(e) Certification that the stormwater outfalls have been evaluated for the presence of
non-stormwater discharges. The permittee shall re -certify annually 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.
2. Stormwater Management Strategy. The Stormwater Management Strategy shall
contain a narrative description of the materials management practices employed which
control or minimize the stormwater exposure of significant materials, mcl_uding
structural and nonstructural measures. The Stormwater Management Strategy, at a
minimum. shall incorporate the following- 14,
(a) Feasibility Study A review of the technicndn 41
iasibilrty of changing
the methods of operations and/or storage ces t el mate or reduce exposure
of materials and processes to rainfall and r -o flows. Wherever practical, the
permittee shall prevent exposure of all st ge re , material handling operations,
and manufacturing or fueling operatio , . In rewhere elimination of exposure is
not practical, this review shall docu , en e sibility of diverting the stormwater
run-on away from areas of poten c to nation.
(b) Secondary Containm t q 'r ents and Records. Secondary containment is
required for: bulk storag U aterials; storage in any amount of Section 313
of Title III of the Supe nd A e I ments and Reauthorization Act (SARA) water
priority chemicals; d stora n any amount of hazardous substances, in order to
prevent leaks and s , ii fro - contaminating stormwater runoff. A table or summary
of all such tanks an to materials and their associated secondary containment
areas shall be maintained. If the secondary containment devices are connected to
stormwater conveyance systems, the connection shall be controlled by manually
activated valves or other similar devices (which shall be secured closed with a
locking mechanism). 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 any
material Records documenting the individual making the observation, the
description of the accumulated stormwater, and the date and time of the release
shall be kept for a period of five (5) years.
(c) BMP Summary. A listing of site structural and non-structural Best Management
Practices (BMPs) shall be provided The installation and implementation of BMPs
shall be based on the assessment of the potential for sources to contribute
significant quantities of pollutants to stormwater discharges and on data collected
through monitoring of stormwater discharges. The BMP Summary shall include a
written record of the specific rationale for installation and implementation of the
selected site BMPs. The BMP Summary shall be reviewed and updated annually.
Part II Page 2 of 14

Permit No NCS000546
3. Spill Prevention and Response Procedures The Spill Prevention and Response
Procedures (SPRP) shall incorporate an assessment of potential pollutant sources based
on a materials inventory of the facility. Facility personnel responsible for implementing
the SPRP shall he identified in a written list incorporated into the SPRP and signed and
dated by each individual acknowledging their responsibilities for the plan A
responsible person shall be on-site at ail times during facility operations that have the
potential to contaminate stormwater runoff through spills or exposure of materials
associated with the facility operations. The SPRP must be site stormwater specific.
Therefore, an oil Spill Prevention Control and Countermeasure plan (SPCC) may be a
component of the SPRP, but may not be sufficient to completely address the stormwater
aspects of the SPRP. The common elements of the SPCC with the SPRP may be
incorporated by reference into the SPRP. P
4. Preventative Maintenance and Good House ep' P gr . A preventative
maintenance and good housekeeping program e v - ped and implemented.
The program shall address all stormwater cont 1 stems (if applicable), stormwater
discharge outfalls, all on-site and adjacent sur ace , a , rs and wetlands, industrial
activity areas (including material storage s, at ial handling areas, disposal areas,
process areas, loading and unloading ar as, h roads), all drainage features and
structures, and existing structural B ' . e ogram shall establish schedules of
inspections, maintenance, ho ee in ctivities of stormwater control systems,
as well as facility equipme III a as, and facility systems that present a potential
for stormwater exposure or r : a pollution where not already addressed under
another element of the SP In ec Ion of material handling areas and regular
cleaning schedules of th - e area all be Incorporated Into the program Timely
compliance with the es llsh schedules for Inspections, maintenance, and
housekeeping shall be co d and maintained in the SPPP.
5. Facility Inspections. Inspections of the facility and all stormwater systems shall occur
as part of the Preventative Maintenance and Good Housekeeping Program at a
minimum on a semi-annual schedule, once during the first half of the year (January to
June), and once during the second half (July to December), with at least 60 days
separating inspection dates (unless performed more frequently than semi-annually).
These facility Inspections are different from, and In addition to, the stormwater
discharge characteristic monitoring at the outfalls required in Part II B, C, and D of this
permit.
6. Employee Training. Training programs shall be developed and training provided at a
minimum on an annual basis for facility personnel with responsibilities for- spill
response and cleanup, preventative maintenance activities, and for any of the facility's
operations that have the potential to contaminate stormwater runoff. The facility
personnel responsible for Implementing the training shall be Identified, and their
annual training shall be documented by the signature of each employee trained.
Part II Page 3 of 14

Permit No N(.S000546
7 Responsible Party. The SPPP shall identify a specific position or positions responsible
for the overall coordination, development, implementation, and revision of the SPPP.
Responsibilities for all components of the SPPP shall be documented and position
assignments provided
8. SPPP Amendment and Annual Update. The permittee shall amend the SPPP
whenever there is a change in design, construction, operation, site drainage,
maintenance, or configuration of the physical features which may have a significant
effect on the potential for the discharge of pollutants to surface waters. All aspects of
the SPPP shall be reviewed and undated on an anneal basis_ The annual update
shall include:
(a) an updated list of significant spills ors le, ks p'dllutants for the previous three
(3) years, or the notation that no spi a oc rre (element of the Site
Overview);
(b) a written re -certification that the sto ter outfalls have been evaluated for
the presence of non-stormwater di s ar ement of the Site Overview);
(c) a documented re-evaluation of e • ,-, ti ness of the on-site stormwater
BMPs (BMP Summary eleme of e - mwater Management Strategy)
(d) a review and comparison o e a alycal data to benchmark values (if
applicable) over e pa ar, in - ding a discussion about Tiered Response
status. The per tt s 11 e the Division's Annual Summary Data
Monitoring Repor D ) - , available from the Stormwater Permitting
Unit's website ee ` ni ring Forms' here:
The Director may notjqK-h:,PMrmittee when the SPPP 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 SPPP 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.
9. SPPP Implementation. The permittee shall implement the Stormwater Pollution
Prevention Plan and all appropriate BMPs to prevent contaminants from entering
surface waters via stormwater Implementation of the SPPP shall include
documentation of all monitoring, measurements, inspections, maintenance activities,
and training provided to employees, including the log of the sampling data and of
actions taken to implement BMPs associated with the industrial activities, including
vehicle maintenance activities Such documentation shall be kept on-site for a period of
five (5) years and made available to the Director or the Director's authorized
representative immediately upon request.
Part II Page 4 of 14

Permit No NCS000546
SECTION B: ANALYTICAL MONITORING REQUIREMENTS
Analytical monitoring of stormwater discharges shall be performed as specified in Table 1.
All analytical monitoring shall be performed during a measureable storm event at each
stormwater discharge outfall (SDO). Only SDOs discharging stormwater associated with
industrial activity must be sampled (See Definitions).
A measurable storm event is a storm event that results in an actual discharge from the
permitted site outfall The previous measurable storm event must have been at least 72 hours
prior The 72 -hour storm interval does not apply if the permittee is able to document that a
shorter interval is representative for local storm events during the sampling period, and the
permittee obtains approval from the local DWO Regional Office See Definitions
Table 1. Analytical Monitoring Requiremer* 4k ,
. Dff-c-113rea
CharacteristicsUnits
Measurement
Sample°
SamMON ple
hocation3�
Total Suspended Solids TSS
m L
ase i- nual
Grab
SDO
Chemical Oxygen Demand COD
m
s XannuaI
Grab
SDO
Oil and Grease 0&G
L
emi-annual
Grab
SDO
H A,
s dad
semi-annual
Grab
SDO
Aluminum (Al), Total Recovera e
g
semi-annual4
Grab
SDO 008
Copper (Cu), Total Recoverab
g�L
semi-annual4
Grab
SDO
Total Nitrogen TN
m L
annual
Grab
SDO
Total Phosphorus TP
m L
annual
Grab
SDO
Total Rainfalls
inches
semi-annual
Rain Gauge
-
Footnotes
1 Measurement Frequency Twice per year during a measureable storm event
2 Grab samples shall be collected within the first 30 minutes of discharge
3 Sample Location Samples shall be collected at each stormwater discharge outfall (SDO) unless
representative outfall status (ROS) has been granted A copy of the letter granting ROS shall be kept on site
4 Monitoring for each of these parameters may be discontinued at every outfall where four (4) consecutive
samples are below the benchmark concentration in Table 3 or below the higher Cu benchmark
5 For each sampled measureable storm event, the total precipitation must be recorded An on-site rain gauge
or local rain gauge reading must be recorded
The permittee shall complete the analytical samplings in accordance with the schedule
specified below in Table 2, unless adverse weather conditions prevent sample collection
(see Adverse Weather in Definitions). A minimum of 60 days must separate Period 1
and Period 2 sample dates, unless monthly monitoring has been instituted under a "Tier
Two" response. Inability to sample because of adverse weather conditions must be
documented in the SPPP and recorded on the DMR. The permittee must report the results
from each sample taken within the monitoring period (see Part III, Section E).
Part II Page 5 of 14

Permit No NC5000546
Table 2. Monitoring Schedule
Monitorin erg io" d?�?
Samp el Numbers
A .„Start
Erid
Year 1 - Period 1
1
August 1, 2012
December 31, 2012
Year 1 - Period 2
2
January 1, 2013
June 30, 2U13
Year 2 - Period 1
3
Julyj. 2013
December 31. 2013
Year 2 - Period 2
4
January 1, 2014
June 30, 2014
Year 3 - Period 1
5
July 1, 2014
December 31, 2014
Year 3 - Period 2
6
January 1, 2015
June 30, 2015
Year 4 - Period 1
7
J>>ly 1, 2015
December 31, 2015
Year 4 - Period 2
8
January 1, 2016
June 30, 2016
Fear 5 - Period 1
9
July 1, 201
December 32, 2016
Year 5 - Period 2
10 1
Jan y 4W7
July 31, 2017
Footnotes
1 Maintain semi-annual monitoring until either ani
permit is revoked or rescinded The permittee in
before the submittal deadline (180 days before
under the permit The permittee mjnotis
e e
process, even if a renewal permit is d
2 If no discharge occurs during the sapeindicating "No Flow" or "Nol harhi 3
P=it is issued for this facility or until this
ib it application for renewal of coverage
obe considered for renewed coverage
ic,MGonitoring throughout the permit renewal
Pe-wrwexpiration of this permit
permittee must submit a monitoring report
of the end of the sampling period
Failure to monitor sem i-annuall . er a terms immediately institutes monthly
monitoring for all paramete , upo th next measureable storm event. After six (6)
months of monthly monitor , g, the mittee may return to a semi-annual sampling
monitoring schedule, unle s W quires continued monthly monitoring or benchmark
exceedances prompt a "Tie T response "No discharge" from an outfall during a
monitoring period does not constitute failure to monitor, as long as it is properly reported.
The,permittee shall compare monitoring results to the benchmark values in Table 3. The
benchmark values in Table 3 are not permit limits but should be used as guidelines for the
permittee's Stormwater Pollution Prevention Plan (SPPP). Exceedances of benchmark values
require the permittee to increase monitoring, increase management actions, increase record
keeping, and/or install stormwater Best Management Practices (BMPs) in a tiered program.
See below the descriptions of Tier One, Tier Two, and Tier Three response actions below.
Part II Page 6 of 14

Permit No NCS000546
Table 3. Benchmark Values for Analytical Monitoring
Discharge Characteristics
nits
_,; v Benchmark
Total Suspended Solids
mg /L
100
Chemical Oxygen Demand
mg/L
120
Oil and Grease (0&G)
mg/L
30
pH (see footnote 1)
standard
6-91
Aluminum (Al) (see footnote 2) - SDO 008
mg/L
0 075 (impairment) or N/A2
Copper (Cu) (see footnote 3)
mg/L
0 007 (Tier One),
0 ("? 4 (Tiers Two and Three)3
Total Nitrogen (TN)
m
30
Total Phosphorus (TP)
tL
mak
2
+41
Footnotes
1 If pH values outside this range are recorded in sa . le to ater discharges, but ambient rainfall
data indicate precipitation pH levels are wi n + .1 dard units of the measured discharge
values or lower, then the lower threshold o his nch ark range does not apply Readings from an on-
site or local ram gauge (or local p cipit dat) be documented to demonstrate background
concentrations were below the nc a p ange
2 The aluminum (Al) benchmark do n ap ,y a less the waterbody is ever listed as impaired because
of biological integrity impair an r g for this parameter only applies to SDO 008
3 These benchmarks are hardn depen nd are based on a default hardness of 50 mg/1 Tiers Two
and Three are prompted by alue exc ding two times the Tier One benchmark In lieu of benchmarks
for Cu, the permittee may i - ty li - sources of Cu and devise a site-specific Monitoring and BMP
Plan to address how the fac ty assess and reduce or eliminate these metals from stormwater
discharges The Monitoring and BMP Plan shall be incorporated into the SPPP and may be subject to
approval by the Division Cu monitoring only applies where receiving waters are impaired for these
metals or because of biological integrity, however, Cu concentrations in the discharge that result in
toxicity of the discharge or cause or contribute to water quality standard violations, regardless of
waterbody attainment status, will prompt Tier 3 actions by DWQ
Part 11 Page 7 of 14

Permit No NCS000546
If: The first valid sampling results are above a benchmark value, or outside of the benchmark range, for any
parameter at any outfall,
Then: The permittee shall• I
1. Conduct a stormwater management inspection of the facility within two weeps of receiving
sampling results.
2 Identify and evaluate possible causes of the benchmark value exceedance
3. Identify potential and select the specific. source controls, operational controls, or physical
iniprovenients to i educe concentrations of tine parameters of concei n, and/or to bring
concentrations within the benchmark range
4 Implement the selected actions within two months of th ection.
5. Record each instance of a Tier One response in the , P me de the ate and value of the
benchmark exceedence, the inspection date, the p17
so el c du ng the inspection, the selected
actions, and the date the selected actions were im m nted
w, ,_
If: During the term of this permit, the first valid s pli re }ts from two consecutive monitoring periods
are above the benchmark values, or outside th en mark range, for any specific parameter at a
specific discharge outfall,
Then: The permittee shall.
1 Repeat all the requireZacts in a ove in Tier One
2 Immediately institute o ring for all parameters The permittee shall conduct monthly
monitoring at every oua sampling result exceeded the benchmark value for two
consecutive samplesnalytical and qualitative) monitoring shall continue until three
consecutive sample results are below the benchmark values or within benchmark range.
3 If no discharge occurs during the sampling period, the permittee is required to submit a monthly
monitoring report indicating "No Flow" to comply with reporting requirements
4 Benchmark exceedances for a different parameter separately trigger a tiered response.
5. Maintain a record of the Tier Two response in the SPPP
During the term of this permit, if the valid sampling results required for the permit monitoring periods
exceed the benchmark value, or are outside the benchmark range, for any specific parameter at any specific
outfall on four occasions, the permittee shall notify the DWQ Mooresville Regional Office Supervisor in
writing within 30 days of receipt of the fourth analytical results DWQ may but is not limited to.
• require that the permittee revise, increase, or decrease the monitoring frequency for the
remainder of the permit;
• require the permittee to install structural stormwater controls;
• require the permittee to implement other stormwater control measures,
• require the permittee to perform upstream and downstream monitoring to characterize impacts
on receiving waters; or
• require the permittee implement site modifications to qualify for a No Exposure Exclusion
Part II Page 8 of 14

Permit No NCS000546
This site discharges to the South Fork Catawba River, which is impaired for copper. If a
Total Maximum Daily Load (TMDL) is approved for this segment of the river, the Division
may reniairP additional monitoring for this metal (currently part of the permit) or consider
routine sample results in determining whether additional BMPs are needed to control the
pollutant's) of concern to the maximum extenc pracLIcabie This site is also located in the
watershed draining to Lake Wylie, which has a TMDL for nutrients
If additional BMPs are needed to achieve the required level of control, the permittee will be
required to (1) develop a strategy for implementing appropriate BMPs. and (2) submit a
timetable for incorporation of those BMPs into the permitted Stormwater Pollution
Prevention Plan. /_5
SECTION C: QUALITATIVE MONITORING REQ
The purpose of qualitative monitoring is to evaluate fhe' effectiveness of the Stormwater
Pollution Prevention Plan (SPPP) and assess socf stormwater pollution.
Qualitative monitoring of stormwater out s s be -performed during a measurable
storm event.
Qualitative monitoring requir a s i ection of each stormwater outfall regardless of
representative outfall status. Q 1,114 nitoring shall be performed semi-annually as
specified in Table 4, and dur req ire analytical monitoring events (unless the permittee
is required to perform furt r qualit ve sampling per the Qualitative Monitoring
Response, below) Inabili , o sa le because of adverse weather conditions must be
documented in the SPPP a r - rded on the DMR (see Adverse Weather in Definitions).
Only SDOs discharging stormwater associated with industrial activity must be monitored
(See Definitions)
In the event an atypical condition is noted at a stormwater discharge outfall, the permittee
shall document the suspected cause of the condition and any actions taken in response to
the discovery. This documentation will be maintained with the SPPP.
Part iI Page 9 of 14

Permit No NC.S00046
Table 4. Qualitative Monitoring Requirements
Discharge Characteristics
-�INIW
Frequencyf1
Monitoring
I.o
_ca tion2
Color
semi-annual
SDO
Odor
semi-annual
SDO
Clarity
semi-annual
SDO
Floating Solids
semi-annual
SDO
Suspended Solids
semi-annual
SDO
Foam
semi-annual
SDO
Oil Sheen
semi-an"1
SDO
Erosion or deposition at the outfall
se -an ua
SDO
Other obvious indicators
of stormwater pollution
sVnnua%
SDO
Footnotes
1 Measurement Frequency Twice per year during
monitoring periods through the end of this per
monitoring throughout the permit renewal priFE
k storm event See Table 2 for schedule of
ie permittee must continue qualitative
permit is issued
Monitoring Location QualitaNurin
%�all'%Werformed at each stormwater discharge outfall
(SDO) regardless of represenOS), unless ROS isgranted specificallyfor qualitative
monitoring A copy of any letbe kept on site Remaining outfalls must be observed at
least once during the permit 11 sureable storm event, except where the DWQ Regional
Office (1) agrees outfalls are e or cannot be made safe without excessive burden on the
permittee, or (2) determines warrant more periodic observation
A minimum of 60 days must separate monitoring dates, unless additional sampling has
been instituted as part of other analytical monitoring requirements in this permit.
If the permittee's qualitative monitoring indicates that existing stormwater BMPs are
ineffective, or that significant stormwater contamination is present, the permittee shall
investigate potential causes, evaluate the feasibility of corrective actions, and implement
those corrective actions within 60 days, per the Qualitative Monitoring Response, below.
A written record of the permittee's investigation, evaluation, and response actions shall be
kept in the Stormwater Pollution Prevention Plan.
Part 11 Page 10 of 14

Permit No NCS000546
Qualitative monitoring is for the purposes of evaluating SPPP effectiveness, assessing new sources
of sto.-..water pollution, and pro...pt.ng the permatee's response to p0ut:o . if the perm.ttcc
repeatedly fails to respond effectively to correct problems identified by qualitative monitoring, or if
the discharge causes or contributes to a water quality standard violation, DWQ may but is not
limited to:
• require that the permittee revise, increase, or decrease the monitoring frequency
(analytical or qualitative) for the remainder of the permit,
• require the permittee to install structural stormwater controls,
• require the permittee to implement other stormwater control measures,
• require the permittee to perform upstream and clow . t am monitoring to characterize
impacts on receiving waters, or
• require the permittee implement site modifi do o I ualor a No Exposure Exclusion
SECTION D: ON-SITE VEHICLE MAINTEN O rl'ORING REQUIREMENTS
Facilities that have any vehicle mainte ce ti � occurring on-site which uses more
than 55 gallons of new mot r on hen averaged over the calendar year
shall perform analytical monito s e ied below in Table 5. All analytical
monitoring shall be performe g asureable storm event at all stormwater
discharge outfalls (SDOS) th discha stormwater runoff from vehicle maintenance areas,
and in accordance with the s hedul resented in Table 2 (Section B).
Table 5. Analytical M ' oring Requirements for On -Site Vehicle Maintenance
Discharge Characteristics
Units
Measurement
Fre uen ? `i
Sample
_„ T� ; e2
Sample
Location3
H
standard
semi-annual
Grab
SDO
Non -Polar Oil & Grease /
TPH
EPA Method 1664 SGT -HEM
mg/L
semi-annual
Grab
SDO
Total Suspended Solids
m L
semi-annual
Grab
SDO
Total Rainfa114
inches
semi-annual
Rain gauge
New Motor Oil Usage
gallons/month
I semi-annual
I Estimate
-
Footnotes
1 Measurement Frequency Twice per year during a measureable storm event, until either another permit
is issued for this facility or until this permit is revoked or rescinded See Table 2 for schedule of
monitoring periods through the end of this permitting cycle
2 Grab samples shall be collected within the first 30 minutes of discharge
Part II Page 11 of 14

Permit No NCb000546
Sample Location Samples shall be collected at each stormwater discharge outfall (SDO) that discharges
stormwater runoff from area(s) where vehicle maintenance activities occur
4 For each sampled measureable storm event the total precipitation must be recorded An on-site or local
rain gaugc reading must be recorded
Failure to monitor semi-annually per permit terms immediately institutes monthly
monitoring for all parameters, upon the next measureable storm event, as provided in Part
II Section B.
Monitoring results shall be compared to the benchmark values in Table 6. The benchmark
values in Table 6 are not permit limits but should be used as guidelines for the permittee's
Stormwater Pollution Prevention Plan (SPPP). Exceedances of benchmark values require
the permittee to increase monitoring, increase managem t_ctions, increase record
keeping, and/or install stormwater Best Manager AL(B Ps), as provided in Part
II Section B. ff
Table 6. Benchmark Values for Vehicle M 0 then ce Analytical Monitoring
7,010910Discharge Cha at risti
UWin
B ch a)k's
pH
r/aTaKv
6-9
Non -Polar Oil & Grease / TPH
[EPA Method 1664 (SGT -HEM
Vmg/L
15
Total Suspended Solids
mg/L
100
R
ftnl� i�
Part II Page 12 of 14

Permit No NCS000546
SECTION E: SPECIAL CONDITIONS
(1) The facility shall conduct fish tissue monitoring for arsenic, selenium, and mercury in
accordance with its NPDFS wastewater permit NC:O004979 Results shall he included in
the NPDES stormwater permit renewal application. Should fish tissue monitoring
requirements under NC0004979 change, this permit may be reopened and modified to
include additional stormwater monitoring
(2) In accordance with its,NPDES wastewater permit NC0004979, the facility must conduct
semi-annual in -stream monitoring for arsenic. selenium. mercury. chromium, lead.
cadmium, copper, and zinc, upstream and downstream of the ash pond discharge, at
stations already established through the Balanced and Incjrgenous Population (BIP)
monitoring program. During the term of this pe mit, t facility shall conduct three
additional in -stream sampling events during o it 2 our of a measurable
storm event for the same parameters, upstre do nes earn of the cumulative
stormwater discharges in each of the Catawba ci uth Fork Catawba Rivers. The
facility shall also record the total rainfall ami, nth storm event If the established
in -stream stations are not already locate WHEN7
,d downstream of the cumulative
stormwater discharges, the facility shal stppropriate upstream and/or
downstream station for this in-strea - an401ml
All in -stream monitoring r u s 11 e submitted annually by December 31St each
year to the NC DWQ Storm w ter e ' ting Unit (1617 Mail Service Center, Raleigh,
NC 27699-1617) A map thin str am sample locations, including latitude and
longitude coordinates, sAbll bei tided Should in -stream monitoring requirements
under NC0004979 cha g thi �ermit may be reopened and modified to include
additional stormwater%@ ' ring.
(3) The facility shall sample stormwater discharge outfalls SDO 008 and SDO 015 with for
the parameters in Table 7 once in the last year of the permit and submit those
monitoring results with the NPDES stormwater permit renewal application All
analytical monitoring shall be performed during a measureable storm event
Part 11 Page 13 of 14

Permit No NCS000546
Table 7. Analytical Monitoring Requirements for Permit Renewal Application
Discharge. Z W,Sample
ItIgm Char-acteristics
RIMER-
T e2
dSample
Location3.
Aluminum Al
m L
Grab
SDO 008, SDO 015
Antimony Sb
mg/L
Grab
SDO 008, SDO 015
Arsenic As
m L
Grab
SDO 008, SDO 015
Barium Ba
m L
Grab
SDO 008, SDO 015
Beryllium (Be)
mg/L
Grab
SDO 008, SDO 015
Boron B
m L
Grab
SDO 008, SDO 015
Cadmium `Cd
m L
krAV
SDO 008, SDO 015
Chromium Cr
m L
r
SDO 008, SDO 015
Cobalt Co
m L
GrW
SDO 008, SDO 015
Copper(Cu)
m L
Grab
SDO 008, SDO 015
Iron Fe
Mg/,
Vrab
SDO 008, SDO 015
Lead(Pb)L
Grab
SDO 008, SDO 015
Magnesium M
Grab
SDO 008, SDO 015
Manganese Mn
Grab
SDO 008, SDO 015
Mercury H
L
Grab
SDO 008, SDO 015
Nickel(Ni)m
L
Grab
SDO 008, SDO 015
Selenium Se
m L
Grab
SDO 008, SDO 015
Silver A
m L
Grab
SDO 008, SDO 015
Titanium Ti
m L
Grab
SDO 008, SDO 015
Thallium Tl
m L
Grab
SDO 008, SDO 015
Zinc Zn
m L
Grab
SDO 008, SDO 015
Sulfate
m L
Grab
SDO 008, SDO 015
H
standard I
Grab
SDO 008, SDO 015
Total Rainfa115
inches I
Rain Gauge I
-
Footnotes
1 Measurement Frequency Twice per year during a measureable storm event
Z Grab samples shall be collected within the first 30 minutes of discharge
3 Sample Location Samples shall be collected at stormwater discharge outtalls (SDOs) 008 and 015
5 For each sampled measureable storm event, the total precipitation must be recorded An on-site rain gauge
or local rain gauge reading must be recorded
Part II Page 14 of 14

Permit No NCS000546
PART III STANDARD CONDITIONS FOR NPDES STORMWATER INDIVIDUAL PERMITS
SE ITIVN A: C01%1 P L-IANCE AND I IAUILITl
Compliance Schedule
The permittee shall comply with Limitations and Controls specified for stormwater discharges in
accordance with the following schedule
Existing Facilities already operating but applying for permit coverage for the first time: The
Stormwater Pollution Prevention Plan shall be developed and implemented within 12 months of the
effective date of the initial permit and updated tnereafter on an annual basis Secondary containment,
as specified in Part II, Section A, Paragraph 2(b) of this permit, shall be accomplished within 12
months of the effective date of the initial hermit issuance
New Facilities applying for coverage for the first
shall be developed and implemented prior to the be
industrial activity and be updated thereafter on an e
in Part ll, Section A, Paragraph 2(b) of this permit st
discharges from the operation of the industrial aa%
Existing facilities previously permitted
limitations, and controls contained in thi
shall become effective immedtely u i
Pollution Prevention Plan fiala'�.s Dmimtit
months of the effective date o ,h
containment, as specified in P
beginning of discharges fr the
ater Pollution Prevention Plan
of di ch es from the operation of the
basis arondary containment, as specified
�comphshed prior to the beginning of
$d a 1 `W or renewal: All requirements, conditions,
er (e pt new SPPP elements in this permit renewal)
;uffaggpitthis permit New elements of the Stormwater
n shall be developed and implemented within 6
updated thereafter on an annual basis Secondary
ph 2(b) of this permit shall be accomplished prior to the
of the industrial activity
Duty to Comp
The permittee must comp with all conditions of this permit Any permit noncompliance constitutes
a violation of the Clean Water Act (CWA) and is grounds for enforcement action, for permit
termination, revocation and reissuance, or modification, or denial of a permit upon renewal
application [40 CFR 122 41]
a The permittee shall comply with standards or prohibitions established under section 307(a) of
the CWA 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 CWA provides that any person who violates section[s] 301, 302, 306, 307, 308, 318 or 405 of
the Act, or any permit condition or limitation implementing any such sections in a permit issued
under section 402, or any requirement imposed in a pretreatment program approved under
sections 402(a)(3) or 402(b)(8) of the Act, is subject to a civil penalty not to exceed $37,500 per
day for each violation. [33 USC 1319(d) and 40 CFR 122 41(a)(2)]
The CWA provides that any person who negligently violates sections 301, 302, 306, 307, 308,
318, or 405 of the Act, or any condition or limitation implementing any of such sections in a
permit issued under section 402 of the Act, or any requirement imposed in a pretreatment
program approved under section 402(a)(3) or 402(b)(8) of the Act, is subject to criminal
penalties of $2,500 to $25,000 per day of violation, or imprisonment of not more than 1 year, or
both In the case of a second or subsequent conviction for a negligent violation, a person shall be
Part III Page 1 of 9

Permit No NCS000546
subject to criminal penalties of not more than $50,000 per day of violation, or by imprisonment of
not more than 2 years, or both [33 USC 1319(c)(1) and 40 CFR 122 41(a)(2)]
d Any person who knowingly violates such sect!ons, or such conditions or lim'tations is sub;ect to
criminal penaities of $5,000 to $50,000 per day of violation, or imprisonment for not more than 3
years, or both In the case of a second or subsequent conviction for a knowing violation, a person
shall be subject to criminal penalties of not more than $100,000 per day of violation, or
imprisonment of not more than 6 years, or both [33 USC 1319(c)(2) and 40 CFR 122 41(a)(2)]
Any person who knowingly violates section 301, 302, 303, 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, and wiio knows at that time that he thereby places another pet -son in
imminent danger of death or serious bodily injury, shall, upon conviction, be subject to a fine of
not more than $250,000 or imprisonment of not more than 1 years, or both In the case of a
second or subsequent conviction for a knowing endang nt violation, a person shall be subject
to a fine of not more than $500,000 or by impris en f t moree khan 30 years, or both An
organization, as defined in section 309(c)(3)(B) i u) o e WA, shfill, upon conviction of
violating the imminent danger provision, be su e - o a fine t more than $1,000,000 and can
be fined up to $2,000,000 for second or subseq co victions [40 CFR 122 41(a)(2)]
f Under state law, a civil penalty of not mor n 0 , per violation may be assessed against
any person who violates or fails to act in cc ce- ith the terms, conditions, or requirements
of a permit [North Carolina General ut § 1 -215 6A]
g Any person may be asset
301, 302, 306, 307, 308,
implementing any of suc
Administrative Denaltis;
maximum amount o y Clas
violations are not t e ceed $
with the maximum m
and 40 CFR 122 41(
d mstF"a�'M— penalty by the Administrator for violating section
r,400go=ris Act, or any permit condition or limitation
It i ermit issued under section 402 of this Act
ss iolations are not to exceed $16,000 per violation, with the
s nalty assessed not to exceed $37,500 Penalties for Class II
,000 per day for each day during which the violation continues,
any Class II penalty not to exceed $177,500 [33 USC 1319(g)(2)
3 Duty to Mitigate
The permittee shall take all reasonable steps to minimize or prevent any discharge in violation of this
permit which has a reasonable likelihood of adversely affecting human health or the environment [40
CFR 122 41(d)]
4 Civil and Criminal Liability
Except as provided in Part III, Section C of this permit regarding bypassing of stormwater control
facilities, nothing in this permit shall be construed to relieve the permittee from any responsibilities,
liabilities, or penalties for noncompliance pursuant to NCGS 143-215 3,143-215 6, 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
5 Oil and Hazardous Substance Liability
Nothing in this 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 permittee is or may be
subject to under NCGS 143-215 75 et seq or Section 311 of the Federal Act, 33 USC 1321
6 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
Part III Page 2 of 9

Permit No NCS000546
personal rights, nor any infringement of Federal, State or local laws or regulations [40 CFR
122 41(g)]
geverabihty
The provisions of this perinlL are sevel able, dnd if any pi o ision of Lids perniiL, ui the dpplicalon 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 [NCGS !SOB -23]
8 Duty to Provide Information
The permittee shall furnish to the Permit Issuing Authority, within a reasonable time, any information
which the Permit Issuing Authority may request to determine whether cause exists for modifying,
revok,ng and reissuing, or teri—nnnating the permit issued pursuant to this permit or to determine
compliance with this permit The permittee shall also furnish to the Permit Issuing Authority upon
request, copies of records required to be kept by this permit [40 CSR 122 41(h)]
Penalties for Tampering
The Clean Water Act provides that any person who
inaccurate, any monitoring device or method requi
conviction, be punished by a fine of not more than
more than two years per violation, or by both If
after a first conviction of such person under t
$20,000 per day of violation, or by impriso en
or knowingly renders
e main Maed under this permit shall, upon
P�er violation, or by imprisonment for not
onif a person is for a violation committed
1, punishment is a fine of not more than
ire than 4 years, or both [40 CFR 122 41]
10 Penalties for Falsification of Re orts
The Clean Water Act proved ,l at . ,y p rso o knowingly makes any false statement,
representation, or certificate in y co or other document submitted or required to be
maintained under this permit clu g itormg reports or reports of compliance or
noncompliance shall, upon nvicti n, b punished by a fine of not more than $10,000 per violation, or
by imprisonment for not , ore than years per violation, or by both [40 CFR 122 41]
11 Onshore or Offshore Col s, .
This permit does not aut e or approve the construction of any onshore or offshore physical
structures or facilities or the undertaking of any work in any navigable waters
12 Duty to Reapply
If the permittee wishes to continue an activity regulated by this permit after the expiration date of
this permit, the permittee must apply for and obtain a new permit [40 CFR 122 41(b)]
SECTION B: GENERAL CONDITIONS
Permit Expiration
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 permits no later than 180 days prior to the
expiration date, unless permission for a later date has been granted by the Director (The Director
shall not grant permission for applications to be submitted later than the expiration date of the
existing permit) [40 CFR 122 21(d)] Any permittee 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, well be subjected to enforcement procedures
as provided in NCGS §143-215 36 and 33 USC 1251 et seq
Part III Page 3 of 9

Permit No NCS000546
Transfers
This permit is not transferable to any person without prior written notice to and approval from the
Director in accordance with 40 CFR 122 61 The Director may condition approval in accordance with
NCGS 113-215 ir. particular NCGS 143.215 1(b)(4)b 2, and may require mod.ficanon or evocation
and reissuance of the permit, or a minor modification, to iaentity the new permittee ana incorporate
such other requirements as may be necessary under the CWA [40 CFR 122 41(1)(3), 122 61] or state
statute The Permittee is required to notify the Division in writing in the event the permitted
facility is sold or closed.
Signatory Requirements
All applications, reports, or information submitted to the Permitting Issuing Authority shall be signed
and cernfied [40 CFR 122 41(k)]
a All permit applications shall be signed as follows
(1) For a corporation by a responsible torpor
responsible corporate officer means (a) a
the corporation in charge of a principal bus
similar policy or decision making functions
more manufacturing, production, or opera
to make management decisions which g
having the explicit or implicit duty of
and initiating and directing other c pr
environmental compliance with , vir e
ensure that the necessary sys e s ar s
accurate informatio p I pp �fio
documents has bee ssi e r egated
procedures
ate,aofficr. r the purpose of this Section, a
p ide se etary easurer or vice president of
ess nct n, y other person who performs
or a corpo on, or (b) the manager of one or
ac ties, provided, the manager is authorized
n th op ation of the regulated facility including
ng alo capital investment recommendations,
e _iu easures to assure long term
I laws and regulations, the manager can
ished or actions taken to gather complete and
n requirements, and where authority to sign
to the manager in accordance with corporate
(2) For a partnership sole p opr torship by a general partner or the proprietor, respectively,
or
(3) For a municipaLStat/ederal, or other public agency by either a principal executive
officer or rankicial [40 CFR 122 22]
b All reports required by the permit and other information requested by the Permit issuing
Authority shall be signed by a person described in paragraph a 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 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 Permit Issuing Authority [40 CFR 122 22]
c Changes to authorization If an authorization under paragraph (b) of this section is no longer
accurate because a different individual or position has responsibility for the overall operation of
the facility, a new authorization satisfying the requirements of paragraph (b) of this section must
be submitted to the Director prior to or together with any reports, information, or applications to
be signed by an authorized representative [40 CFR 122 22]
Part III Page 4 of 9

Permit No NCS000546
d Certification Any person signing a document under paragraphs a or b of this section shall make
the following certification [40 CFR 122 22] NO OTHER STATEMENTS OF CERTIFICATION WILL
BE ACCEPTED
cer tzfy,under peva; y flaw, that this docu,rnent a nd all attachments wer e pr epared under my
airection or supervision in accordance with a system designed to assure that quahfiea 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 forgathering the information,
the information submitted is, to the best of my knowledge and belief, true, accurate, and complete 1
am aware that there are significant penalties for submitting false information, including the
possibility of fines and imprisonment for knowing violations "
Permit Modification. Revocation and Reissuance. or Termination
The issuance of this permit does not prohibit the Permit Issuing Authority from reopening and
modifying the permit, revoking and reissuing the permit, or termji$atmg the permit as allowed by the
laws, rules, and regulations contained in Title 40, Code f F d ri Regulations, Parts 122 and 123,
Title 15A of the North Carolina Administrative Code, ch er, 01 and North Carolina
General Statute 143-215 1 et al
5 Permit Actions
The permit may be modified, revoked and reiss . , ter -ted for cause The notification of
planned changes or anticipated noncom/onit.r.
o)eeReciuirements
- stay any permit condition [40 CFR
122 41(f)]
6 Annual Admmisterin and Co lianc
AMM
The permittee must pay th64
d m�,.511*anWmpliance monitoring fee within 30 (thirty) days
after being billed by the Div�si ay the fee in timely manner in accordance with 15A
NCAC 2H 0105(b)(2) may c to initiate action to revoke the permit
SECTION C: OPERATION AND MY, INTEr4^CE OF POLLUTION CONTROLS
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 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 permit [40
CFR 122 41(e)]
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 permit
[40 CFR 122 41(c)]
Bypassing of Stormwater Control Facilities
Bypass is prohibited and the Director may take enforcement action against a permittee 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
Part III Page 5 of 9

Permit No NCS000546
the exercise of reasonable engineering judgment to prevent a bypass which occurred during
normal periods of equipment downtime or preventive maintenance, and
c The permittee submitted notices as required under, Part III, Section E of this permit
if the Director aetermines that it wiii meet the tnree conditions iistea above, the Director may
approve an anticipated bypass after considering its adverse effects
SECTION D: MONITORING AND RECORDS
Representative Sampling
Samples coliected and measurements taken, as required her em, shali be characteristic of the volume
and nature of the permitted discharge Analytical sampling shall be performed during a measureable
storm event Samples shall be taken on a day and time that is chagacteristic of the discharge All
samples shall be taken before the discharge joins or is dilut b�any other waste stream, body of
water, or substance Monitoring points as specified is rant shall t be changed without
notification to and approval of the Permit Issuing Alto ,� [4 CF 1 41(j)]
Recording Results
For each measurement or sample taken pursua
shall record the following information [40 CF131
a The date, exact place, and time of samotig tri,
b The individual(s) who performed t11Fam
c The date(s) analyses w e erf
d The individual(s) who pe o ed - e a lyses,
e The analytical technique et ds sed, and
f The results of such arOvses
ents of this permit, the permittee
Mements,
measurements,
Flow Measurements
Where required, approp ' ow 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 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 If no approved methods are
determined capable of achieving minimum detection and reporting levels below permit discharge
requirements, then the most sensitive (method with the lowest possible detection and reporting
level) approved method must be used
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 outfall status
If it is established that the stormwater discharges are substantially identical and the permittee is
granted representative outfall status, then sampling requirements may be performed at a reduced
number of outfalls
Part III Page 6 of 9

Permit No NCS000546
6 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 ori -site The permittee shall retain_ _rPrnrds of all monitoring information, including
U all Calibl atIon and niauitenance recueus,
o all original strip chart recordings for continuous monitoring instrumentation,
o copies of all reports required by this permit,
o copies of all data used to complete the application for this permit
These records or copies shall be maintained 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 [40 CFR 122 41]
Inspection and Entry
The permittee shall allow the Director, or an authors
contractor acting as a representative of the Director,
through a municipal separate storm sewer system, a
operator or the separate storm sewer system receiv!
credentials and other documents as may be require4
a Enter upon the permittee's premises w
or where records must be kept under tl
b Have access to and copy, at reasonabl
of this permit,
c Inspect at reasonable tilmliajas y cili f
equipment), practices, or er, Io re
d Sample or monitor at reas bre e
otherwise authorized b e Cle n t
CFR 122 41(1)]
SECTION E: REPORTING REQUIREMENTS
Discharge Monitoring Reports
�d rep ts tative (including an authorized
P m e e e of a Eacility which discharges
au ri d r entative of a municipal
;e discha upon the presentation of
�lak to
or activity is located or conducted,
-ti so this permit,
ny ecords that must be kept under the conditions
pment (including monitoring and control
rated or required under this permit, and
it the purposes of assuring permit compliance or as
Act, any substances or parameters at any location [40
Samples analyzed in accordance with the terms of this permit shall be submitted to the Division on
Discharge Monitoring Report (DMR) forms provided by the Director DMR forms are available on the
Division's website (http //portal ncdenr org/web/wq/ws/su/npdessw) Submittals shall be
delivered to the Division no later than 30 days from the date the facility receives the sampling
results from the laboratory
When no discharge has occurred from the facility during the report period, the permittee is required
to submit a discharge monitoring report, within 30 days of the end of the specified sampling period,
giving all required information and indicating "NO FLOW" as per NCAC T15A 02B 0506
If the permittee monitors any pollutant more frequently than required by this permit using test
procedures approved under 40 CFR Part 136 and at a sampling location specified in this permit or
other appropriate instrument governing the discharge, the results of such monitoring shall be
included in the data submitted on the DMR
The permittee 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
Qualitative monitoring results should not be submitted to the Division, except upon DWQ's specific
requirement to do so Qualitative Monitoring Report forms are available at the website above
Part III Page 7 of 9

Permit No NCS000546
Submitting Reports
Two signed copies of Discharge Monitoring Reports (DMRs) shall be submitted to
Centrai Fiies
Division of Water Quality
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
Availability of Reports
Except for data determined to be confidential under NCGS 143-215 3(a)(2) or Section 308 of the
Federal ACI, 33 USC 1318, all reports prepared in accordance with the ter ins 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 14B or in Section 309 of the Federal
Act .® IML n
4 Non-Stormwater Discharges 'qW
If the storm event monitored in accordance with thi rm coincides with a non-stormwater
discharge, the permittee shall separately monitor I ar et rs as required under all other
applicable discharge permits and provide this t on th the stormwater discharge monitoring
report
5 Planned Changes
The permittee shall give no -e t Di cto oon as possible of any planned changes at the
permitted facility which cou ig fic th ter the nature or quantity of pollutants discharged [40
CFR 122 41(1)] This notificat I eq re t includes pollutants which are not specifically listed in
the permit or subject to no ca lo reqI rements under 40 CFR Part 122 42 (a)
The permittee shall giv ad otice to the Director of any planned changes at the permitted
facility which may result ncomphance with the permit [40 CFR 122 41(1)(2)]
7 Spills
The permittee shall report to the local DWQ Regional Office, within 24 hours, all significant spills as
defined in Part IV of this permit Additionally, the permittee shall report spills including any oil spill
of 25 gallons or more, any spill regardless of amount that causes a sheen on surface waters, any oil
spill regardless of amount occurring within 100 feet of surface waters, and any oil spill less than 25
gallons that cannot be cleaned up within 24 hours
8 Bypass
Notice [40 CFR 122 41(m)(3)]
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
Twenty-four Hour Reporting
a 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
Part III Page 8 of 9

Permn No NCS000546
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 rime compliance is expected to continue, and steps taken or
planned to reduce, eiiinmate, and prevent reoccur fence of Llie 111011u,it,pliance [40 CFR
122 41(1)(6)]
b The Director may waive the written report on a case-by-case basis for reports under this section
if the oral report has been received within 24 hours
c Occurrences outside normal business hours may also be reported to the Division's Emergency
Response personnel aL [phone],[phone] or [phone] ,
10 Other Noncomphance
The permittee shall report all instances of noncompli ce
the time monitoring reports are submitted [40 CFR 4
11 Other Information
Where the Permittee becomes aware that it failed
or submitted incorrect information in a permit ap
promptly submit such facts or information [4�
Part III Page 9 of 9
rted under 24 hour reporting at
nay relevant facts in a permit application,
im any report to the Director, it shall
(8)]

4
PART IV DEFINITIONS
ALL
See Clean Water Act
NCSOOOS46
Adverse Weather
Adverse conditions are those that are dangerous or create inaccessibility for personnel, such as local
flooding, high winds, or electrical storms, or situations that otherwise make sampling impractical
When adverse weather conditions prevent the collection of samples during the sample period, the
permittee must take a substitute sample or perform a visual ass PSment during the next qualifying
storm event Documentation of an adverse event (wit dat , e and written narrative) and the
rationale must be included with your SPPP records er w ather dyes not exempt the permittee
from having to file a monitoring report in accordan w i - the b g schedule Adverse events and
failures to monitor must also be explained and rep e, on the;r ant DMR
Allowable Non-Stormwater Discharges
This permit regulates stormwater disci
the stormwater conveyance system are
a All other discharges that are author
b Uncontaminated groundwater, f u'
chemicals, springs, dis an es f+uI
flushings, water from fo in ra
c Discharges resulting fro , re- t
as a result of use in t event an
r discharges which shall be allowed in
y no0stormwater NPDES permit
UV_ s, air -conditioner condensate without added
n ffiated potable water, waterline and fire hydrant
s from riparian habitats and wetlands
fire -fighting training, or emergency shower or eye wash
�ncy
Measures or practices seOluce the amount of pollution entering surface waters BMPs may
take the form of a proceM1,07fivity, or physical structure More information on BMPs can be found at
http //cfpub epa gov/npdes/stormwater/menuofbmps/index cfm
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 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
7 Certificate of Coverage
The Certificate of Coverage (COC) is the cover sheet which accompanies a General Permit upon
issuance and lists the facility name, location, receiving stream, river basin, effective date of coverage
under the permit and is signed by the Director
8 Clean Water Act
The Federal Water Pollution Control Act, also known as the Clean Water Act (CWA), as amended, 33
USC 1251, et seq
9 Division or DWO
The Division of Water Quality, Department of Environment and Natural Resources
Part IV Page 1 of 4

Permit No NCS000546
10 Director
The Director of the Division of Water Quality, the permit issuing authority
11 FMC
The North Cai mind Envu'urnileraai Management Cunninssion
12 Grab Sample
An individual sample collected instantaneously Grab samples that will be analyzed (quantitatively or
qualitatively) must be taken within the first 30 minutes of discharge
13 Hazardous Substance
Any substance designated under 40 Cr R Part 116 pursuant to Section 311 of the Clean Water Act
14 Landfill
A disposal facility or part of a disposal facility where waste ced in or on land and which is not a
land treatment facility, a surface impoundment, an iry ion we , a haza ous waste long-term
storage facility or a surface storage facility
15 Measureable Storm Event
A storm event that results in an actual discharge
measurable storm event must have beeateapply if the permittee is able to documevents during the sampling period, ancopes of this information and a wrtttAfter authorization by the D I e o
permittee's SPPP
16
thZI,er pitted site outfall The previous
M
rs
nor The 72 -hour storm interval may not
erval is representative for local storm
the local DWQ Regional Office Two
shall be sent to the local DWQ Regional Office
ten approval letter must be kept on site m,the
A stormwater collection stemwit Tian incorporated area of local self-government such as a city or
town
17 No Exposure
A condition of no exposure means that all industrial materials and activities are protected by a storm
resistant shelter or acceptable storage containers to prevent exposure to rain, snow, snowmelt, or
runoff Industrial materials or activities include, but are not limited to, material handling equipment
or activities, industrial machinery, raw materials, intermediate products, by-products, final products,
or waste products DWQ may grant a No Exposure Exclusion from NPDES Stormwater Permitting
requirements only if a facility complies with the terms and conditions described in 40 CFR
§122 26(g)
IE::
19
20
Notice of Intent
The state application form which, when submitted to the Division, officially indicates the facility's
notice of intent to seek coverage under a General Permit
Permit Issuing Authority
The Director of the Division of Water Quality (see "Director" above)
Permittee
The owner or operator issued this permit
Part IV Page 2 of 4 Pages

Permit No NCS000546
21 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
22 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 DWQ may grant representative outfall status Representative outfall status
allows the permittee to perform analytical monitoring at a reduced number of outfalls
23 Secondary Containment
Spiii Lontamment for the LonCeIILS of the single largest tank within the containment structure plus
sufficient freeboard to allow for the 25 -year, 24-hour storm event
24 Section 313 Water Priority Chemical
A chemical or chemical category which
b Is listed in 40 CFR 372 65 pursuant to Section 3 of
Reauthorization Act (SARA) of 1986, also titled
to -Know Act of 1986,
c Is present at or above threshold levels at a faity su
requirements, and
25
d Meets at least one of the following
i Is listed in appendix D of 40
(certain metals, cyanides
substances),
ii Is listed as a haza .usisub.
116 4, or
ui Is a pollutant fo
uperfund Amendments and
ung and Community Right -
SARA title III, Section 313 reporting
Table II (organic priority pollutants), Table III
ble IV (certain toxic pollutants and hazardous
to section 311(b)(2)(A) of the CWA at 40 CFR
published acute or chronic water quality criteria
Substantial physical da ag operty, damage to the control facilities which causes them to
become inoperable, or suMWtial 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
26 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
27 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 3and 40 CFR 117 3) or section
102 of CERCLA (Ref 40 CFR 302 4)
28 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
Part IV Page 3 of 4 Pages

Permit No NCS000546
29 Stormwater Runoff
The flow of water which results from precipitation and which occurs immediately following rainfall
or as a result of snowmelt
30 Stuiiiiwatei Associated Witt] industiiai ACLiv[ty
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
31 Stormwater Foliation 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
32 Total Maximum Daily Load (TM
TMDLs are written plans for attaining and maintain , g w*raul.ndards, in all seasons, for a
specific water body and pollutant A list of approve Ls for tie state of North Carolina can be
found at httD://Dortal.ncdenr.ore/web/wo/Ds/ 1
33 Toxic Pollutant `✓
Any pollutant listed as toxic under Section 3 (a ) f t Clean Water Act
34 Vehicle Maintenance Activity
Vehicle rehabilitation, mec ru Ir ai pa g, fueling, lubrication, vehicle cleaning operations,
or airport deicing operations
35 Visible Sedimentation
Solid particulate matter, oth mine nd organic, that has been or is being transported by water, air,
gravity, or ice from its s of origi hich can be seen with the unaided eye
36 25 -year. 24 hour Storm
The maximum 24-hour precipitation event expected to be equaled or exceeded, on the average, once
in 25 years
Part IV Page 4 of 4 Pages