Allen Steam Facility (9)

NCS000546
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
DIVISION OF WATER QUALITY
PERMIT
TO DISCHARGE STORMWATER UNDER THE
NATIONAL POLLUTANT DISCHARGE ELLNILMATION SYSTEM
In compliance with the provisions of North Caroli, enera tute 143-.215.1, other
lawful standards and regulations promulgated a, o ed by the North Carolina
Environmental Management Commission, an e r Water Pollution Control Act, as
amended,
Le rolinas, LLC
'is hereby authoriz o sE rge stormwater from a facility located at
/Allen Steam Station
2,5.3 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 [June 1, 2012]
This permit -and the authorization to discharge shall expire at midnight on [May 31, 2017].
Signed this, [18th ] day of [May 2012].
for Charles Wakild, P.E., Director
Division of Water Quality
By,the Authority of'th'e Environmental ,M'anagement Commission

TABLE OF CONTENTS
PART I INTRODUCTION
Section A: Individual Permit Coverage
Section'13: Permitted Activities
Section C: Location Map
PART II MONITORINC
DISCHARGES
,Section A: Siormwat
Section B: Analytical
Section C: • Qualitativ
Permit No NCS006546
ITTED
Section D: On -Site Vehicle in,gen.13W Monitoring Requirements
,PART III
Section A:
STANDARD C ITI S FOR NPDES STORMWATER INDIVIDUAL PERMITS
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
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
H

Permit No NC.S000546
Section B1 General Conditions
1.
Permit Expiration
2.
Transfers
3.
Signatory Requirements
4.
Permit Modification, Revocation and Reissuance, or Termination
5.
'Permit Actions
6.
Annual Administering and Compliance Monitoring Fee
Requirements
Section C: Operation
and Maintenance of Poll « rols
1.
Proper Operation and Ma , e cc,
2.
Need to Halt or Reduce No ense
3.
Bypassing of Stormwaleg&nt l cilities
Section D: Monitoring
and Records
1.
Represe tativ - in i
2.
Recor ' e
3.
Plow M. e
4.
T,es roved
S.
Re. sent ve Outfall
6.
Re etention
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.
Spills
8.
Bypass
9.
Twenty-four Hour Reporting
10.
Other Noncompliance
11.
Other information
PART IV DEFINITIONS
11

Permit No NCS000546
PART I INTRODUCTION
SECTION A: INDIVIDUAL PERMIT COVERAGE
During the pe_r-iod beginning,on the effective'date of the permit'and lasting until expirafion,
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 precipitation or runoff as described
in,40 CFR §122.26(g), the facility may qualify for a No ExposIge Exclusion from NP,DES
stormwater discharge permit requirements. Any o ne 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 ism • n no exposure conditions
unless authorized to discharge under a valid NPD rmwater permit; and must recertify
the No Exposure Exclusion annually.
SECTION B: PERMITTED ACTIVITIES Ar /I
Until this permit expires or is fi o evoked, the permittee is authorized to discharge
stormwater to the surface wate o aroliha or separate storm sewer system that
has been adequately treated d m no d in accordance with the terms and conditions of
this permit. All stormwate eschar 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 [ Page 1 of 2

SECTION C: LOCATION MAP
Permit,No NCS000546
,
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Part I Page 2 of 2
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NCS000546
Duke Energy Carolinas, LLC
Allen Steam Station
Latitude: 350 11' 25" N
. -
Longitude: 810 Q4' 32" W
`
County: Gaston
S
Receiving Stream: Catawba River
-
Stream Class: WS -V, B
Map Scale 1,2 000
Sub=basin: "03-08-37,(Catawba River Bashi)
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
Cotid'itions,'Section,E, paragraph 3 oft his permit. `T he'SPPP shall includes at a rninimum,
the following items:
1. Site Overview. The Site Overview shall proved
and the potential pollutant sources that may b
contamination of stormwater discharges. Jhel
(a) A general location map (USGS, quad
map), showing the facility's location
waters; the name of the receiving )gg
discharge, or if the discharge is
name of the municipaIi d
and longitude of the poi s
activity. The general to
whether any receivin ater
waters) or if the sit i locat
established, and a ' ar;
the physical' facility
I'ibute to
I1' contain the following:
pr ppropriately drafted equivalent
transportation routes and surface
Fich the stormwater outfalls
separate storm "sewer system, the
lti �receiving waters; and accurate latitude
tfflWater discharge associated,with industrial
r alternatively thesite map) shall identify
Ir Iimpaired (on the state's 303(d) list of impaired
in a watershed forwhich a TMDL,has been
eters 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'imperuious, 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 I[ Pagel of 11

Permit No NCS000546
(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 s4gnificantmaterial_s, including
structural and nonstructural measures. The Stormwater Management Strategy, at a
minimum, shall, incorporate the following:
(a) Feasibility Study. A review,of the technic
the methods of operations and/or storage
of'materials and processes to rainfall and i
permittee shall prevent exposure of all st
and manufacturing or fueling operatio
not practical, this review shall docu , en
run-on away from areas of poten c to
(b) Secondary Containm
required for: bulk'storagel
of Title III of the Supe nc
priority chemicals; sto
prevent leaks and s . i s frc
of all such tanks an to
areas shall be maintained.
e%is asibdity of,'changing
sesinate or reduce exposure
lows. Wherever,practical, the
K, material handling operations„
where elimination of exposure is
:asibility of diverting the stormwater
ation.
and,Records. Secondary containment is
Y I', u' r'daterials; storage in anyamount of Section 3,13
A Pn merits and Reauthorization Act (SARA) water
,any amount of hazardous substances, in order to
any
stormwater runoff.. A. table or summary
materials and their, associated secondary containment
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 (BM,Ps) 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 it

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 be Weritif ed in a written list°incorporated into the'S'PRP and signed and
dated by each individual acknowledging their responsibilities for the plan. A
responsible person shall be on' -site at all times during facility operations that have the
potential to contaminate stormwater runoff through spills or exposureof 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.
4. Preventative Maintenance and Good House ep' P gr . A preventative
maintenance and good housekeeping program a ve ed and implemented.
The program shall address all stormwater cont 1 stems (if applicable), stormwater
discharge outfalls, all on-site and' adjacent su ce ra. Isand wetlands, industrial
activity areas (including material storage at ial handling areas, disposal areas,
process, areas, loading and unloading ar s, roads), all drainage features and
structures, and existing structural -B ' . e ogram shall establish schedules, of
inspections, maintenance, ho ee .i ctivities of'stormwater control systems,
as well as facility equipme III as, and facility systems that°present a potential
for stormwater exposure or r a _ ollution, where not already addressed under
another element,of the SP In a ion of material handling areas and regular
cleaning schedules of th e area all be incorporated into the1program. Timely
compliaricewith the es lash schedules for inspections, maintenance, and
housekeeping shall be •o d and maintaihed'in the SPPP.
5. Facility Inspections. Inspections of the facility and all stormwater systems shall occur,
,as part of the Preventative Maintenanceand 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.sem,i-annually).
These facility inspections, are different from, and in addition to, the stormwater
discharge characteristic monitoring at the outfalls required in Part I1, 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 train Ing,shall'be documented by the signature of each employee trained.
Part II Page lof'11

Permit No NCS000546
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
effemon the potential for the discharge of pollutants to surface waters. All aspects of
the SPPP shall be reviewed and updated on an annual basis. The annual update
shall include:
(a) an updated list of significant spills orle ks lutants for the previous three
(3) years, or the notation that nc 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 s- ement of the Site, Overview);
(c) a documented re-evaluation of ti ness of the on-site stormwater
BMPs (BMP Summary eleme of e I mwater Management Strategy).
('d) a review and comparison o e a, alytical data to benchmark values (if
applicable) overa pa ar, ' dmg a discussion about Tiered Response
status. The per t s e the Division's Annual Summary Data
Monitoring Repor , available from the Stormwater,Permitting
Unit's website ' ee� ` ni ring Forms' here:
The Director may'noti he rmittee when the SPPP does not meet one or more of the
minimum requirements of the permit. Within 3'0' 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 II1, 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 fora period of
five (5) years and made available to the Director or the Director's authorized
representative,immediately upon request.
Part.11 Page 4 of 11

Permit -No NCS00054'6
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 associated4with
industrial activity must be sampled (See Definitions).
A measurable storm event is a storm eventthat,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 DWQ Regional Office. See Definitions.
Table 1. Analytical, Monitoring Re uireme , IL A
Discharge
Charactertistics
Units
Measurement
Fre ,uen , 1
Sample
T , e2
ample
Location3
Total Suspended Solids TSS,
m L
se i a ual
Grab
SDO
Chemical Demand, COD
m L
s nnual
Grab
SDO
-Oxygen
Oil and Grease 0&G)
m
mit-annual
Grab
SDO
H
r ar
semi-annual
Grab
SDO
Mercury (Hg)5
semi -annuals
Grab
SDO
Selenium (Se)6
L,
semi-annual6
Grab
SDO
Aluminum (Al)6
mg/L
semi-annual6
Grab
SOO
Copper (Cu), Total Recover
mg/L
semi-an,nual6
Grab
SDO;
U,D3 opt
'Boron (B), optional7
mg/L
semi-annual
Grab
SDO
Total Nitrogen TN'
m L
annual
Grab
SDO
Total Phosphorus TP
m L
I annual
Grab
SDO
Total Rainfall8
I inches
I 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 Locatibn 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 kepton site
The permittee may elect to sample,Cu upstream (U) and downstream (D) of all stormwater outfalls instead
,of at each SDO with rep resentative,status (no benchmark applies) See,also footnote; 3 in Table 3
4 Stormwater Discharge Outfalls SWO11 and,rSW012 (which also,.serve,as butfalls-004 and 003 under
NPDES wastewater permit NC004979) should each be sampled for these parameters,at least once -during
a representative storm event during Year 1,- Period land must be reported in accordance with Part III,
Section E 4 (Reporting Requirements - Non-Stormwater Discharges) Benchmark exceedances at these
outtalls may trigger a Tier 1 response Depending on sampling results and/or changes in activities in the
drainage areas, "the Division may require continued stormwater sampling at one or both of these outfalls
Part II Page 5 of 11

Permit No NC.S000546
5 Mercury shall be,analyzed by EPA Low-level detection method 1631E This method also requires a field
blank be analyzed , Field blankadata must be reported for all Hg,samples The permittee may discontinue
Hg monitoring�at every outfall where four (4) consecutive samples are below 12 ng/l (0 012 pg/1) The
permittee may request approval by the Division to discontinue Hg monitoring at other outfalls where Iig
concentrations -are above 12 ng/I but field blank data or other information suggest no localized stormwater
contamination�source (for example, typical of stormwater concentrations elsewhere in the region)
6 Monitoring for each of these parameters may be discontinued at every ouffall,where four (4) consecutive
samples are below the benchmark concentration, or below twice the Cu benchmark
7 Boron (B) monitoring is optional The permittee may elect to monitor boron for,the purpose of establishing
a relationship between B concentrations,and other,metals as a surrogate indicator'for coal -related sources
If the permittee proposes a benchmark,concentration'for boron with sufficient data and supporting
rationale, DWQ'will consider relieving monitoring;for one o=ore of the other metals°in the permit The
permittee must also demonstrate contributions from other (not coal -related) potential sources of those
metals on-site are,minimal ,#
8 For each sampled measureable storm event, the total
or local rain gauge reading must be recorded
The permittee shall.complete the analytical sar
specified below in Table 2, unless adverse wea
(see Adverse Weather in Definition's). A mini
and Period 2 sample dates, unless month rr
Two" response:, Inability to sample beca o
documented in the SPPP and reworde th
,from each sample taken withit�- '31jitKin'
Table 2. Monitoring
t be recorded An on-site rain gauge
accordance .with the schedule
dons prevent sample collection
Fays must separate Period 1
has been instituted under a "Tier
adv se weather conditions must be
09. The permittee must report the results
period'(see Part III, Section E).
Monitoring period`i•2
Sam>al_ _ umber
Starter
n
Year 1- Period 13
June 1, 2012
December 31, 2012
Year 1- Period 2
2
January 1, 2:013
June 30, 2013
Year 2 - Period 1
3
July 1, 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
July 1, 2015
December 31, 2015
Year 4 - Period 2
8
January 1, 2016
July 31, 2016
Year 5 - Period 1
9
July 1, 2016
December 31, 2016
'Year 5 - Period 2
10,
January 1, 2017
May 31, 2017
Footnotes
1 Maintain semi-annual monitoring until either another permit is issued for this facility or until this
permit is,revoked or rescinded The permittee must submit,an,apphcatioh,for renewal of`coverage
before�the submittal deadline (180 days before°expiration) to be considered for,renewed coverage,
under the permit. The�permittee,must,continue analytical monitoring throughout the -permit renewal
process, even if a renewal'permit is nocissued until after expiration of this permit
2 If.no discharge occurs during the,sampling period, the permittee must submit a monitoring report
indicating "No Flow" or "No Discharge" within 30 days of the end of the sampling period
3 SDOs SW011 and SW012 should be sampled at least once during this period-
Part,11 Page 6 of'11

Permit No NCS000546
FallUre to monitor semi-annually�per permit terms immediately institutes monthly
monitoring for all parameters, upon the next measureable storm event. After sik"(6)
months of monthly monitoring, the permittee may return to a semi-annual sampling
monitoring schedule, unless DWQ,regLUrescontim�ed monthly
exceedances promon�tnnng or benchmark
mpt a "Tier Two" response. "No discharge" from ari outfall during a
moniroring 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 Storinwater Pollution Prevention Plan (SPPP). Exceedances of benchmark values
require the permittee to increase monitoring, increase management acfioris; increase record
keeping, and/or install stormwater Best Management Practic (BMPs) in a tiered program.
See below the descriptions of Tier One, Tier Two, a d hree response actions below.
Table °3.Benchmark Values for Analytical L dto%/
Dlischarge�Chara_cteriisticsi'I
s
it14
benchmark
Total Suspended Solids
Chemical Oxygen,Demand
Oil and Grease (C!&G)r
m
I- V*
g
AAIV
100
Of'
120
30
pH (see footnote 1) 'q%g
andard
6-91
Mercury (Hg)mg/L
N/A
Selenium (Se)
mg/L
0.056
Aluminum (Al) (see footnot
mg/L
0.075 (impairment) or N/A2
Copper'(Cu) (see footnote 3)
mg/L
0.007 (Tier One),
0:014 (Tiers Two and Three)3
Boron (B), optional
mg/L
N/A
Total, Nitrogen (TN)
mg/L
30
Total Phosphorus (TP)
mg/L
2
Footnotes
1 If pH values outside this range are recorded=m sampled stormwater discharges, but ambient rainfall
data indicate,precipitation pH levels are within ± 0.1 standard units of the,measured discharge
values or lower, then the lower threshold of this benchmark_ range does not apply, Readings,.from an on-
site or local ram gauge (or local precipitation data) must be documented to demonstrate background
concentrations were below the benchmark pH range
2 Aluminum (Al) benchmark does not apply unless the waterbody is ever listed as,impaired for this
metal or because of biological`integrityimpairment
3 These benchmaeks,are hardness dependent and are based on.a default hardness of 50 mg/1 Tiers,Two
and Three are prompted by values exceeding -twice the initial benchmark In lieu of benchmarks for, Cu,
the permittee'may monitor up- and downstream of the cumulative stormwater discharges from the site
Where feasible and demonstrate that the stormwater discharges subject to this permit do not significantly
Part`II Page 7 of 11

Perrrirt`No NCS000546
increase in -stream concentrations of these metals That demonstration may take into account total
dissolved levels of these metals at ambient conditions Alternatively, in lieu of benchmarks, the permittee
may identify likely sources of Cu and devise a site-specific Monitoring,and BMP Plan to address how
the.facility w.11 assess.and red -ace or,e''.m:nate'these metals from stormwater discharges The Monitoring
and' BMP Pian shalt be incorporated into the SUP ana may be,sublect,to approval by,fhe Division, Cu
monitoring only applies wherexeceivmg waters,are impaired'f6r these metals or because of biological
integrity, however,,Cu,concentrations in the discharge thatresult,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
If: The first valid sampling results are above a b"enchmark valuwoutside of the,benchmark range,
for anv parameter at an -outfall,-
T,hen: The permittee shall
1. Conduct a stormwater management inspection
sampling results.
2 Identify and evaluate possible causes of b
3. Identify potential and select,the specs - so a
improvements to reduce cocents s
concentrations within the'b'�"n . m >;e
4. Implement the,selected acts
5. `Record each instanceof,
benchmark.exceedenc , he
selected actions, and t _
ility within twow,eeks,of receiving
ue exceedance
ntrols, operational controls, or physical
ametem of concern, and/or to bring
,IthiiWo months of the, inspection.,
Pponse in the SPPP Include -the date and value of the
Ction date, the personnel conducting the inspection, the
selected actions were implemented.
If: During`the term of this permit, the first valid sampling results from two consecutive monitoring
periods are above the benchmark values, or outside of the benchmark range, for any'specific
arameter at a specific discharge o
Then: The permittee shall
1 Repeat all the'required actions outlined above in Tier One.
2. Immediately institute monthly monitoring for all parameters (except mercury): The
permittee shall conduct monthly monitoring at every outfall where a sampling result exceeded
the benchmark value for two consecutive samples Monthly (analytical and qualitative)
monitoring shall continue until three consecutive sample results are below the benchmark
values or within benchmark range.
3. Ifno 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 fora different parameter separately trigger a tiered response.
5 Maintain a record of the Tier,Two response in the SPPP.
Part II Page 8 of'11

Permit No NCS000546
During the term of this permit, if the`valid sampling results required for the permit monitoring periods
exceedahe benchmark value,, or are outside the benchmark range, for any specific, parameter at,any
specific outfall on four occasions, the permittee,sfiall'notifv 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 thepermittee"to perform upstream and downstream monitoring,to characterize
impacts on receiving waters; or
• require the permittee implement site modifications to guaA for a No Exposure Exclusion.
This site discharges to the South Fork Catawbar R , - which`Pftpaired for copper. If a
Total Makimum Daily Load (TMDL) is approved f 11 's gment of the river, the Division
may require additional monitoring for this in rr `part of the permit),or,consider,
routine sample results in determining whet ih 1 BMPs are neededto control the
pollutant(s) of concern to the,maximum n ra cable. This site is also located in the
watershed draining to Lake Wylie, whi as T L for nutrients
If additional BMPs are needed e t • required level of control, the permittee will be
required to (1) develop,a strat r menting appropriate BMPs, and (2) submit a
timetable,for, incorporation , those s into the permitted Stormwater Pollution
Prevention Plan.
SECTION C: QUALITATIVE MONITORING REQUIREMENTS
The purpose of,qualitative,monitoring is to evaluate the effectiveness of the Stor-mwater
Pollution Prevention Plan (SPPP) and assess new sources of stormwater pollution.
Qualitative monitoring of stormwater outfalls must be performed during a measurable,
storm event.
Qualitative monitoring requires a visual inspection of each stormwater outfall regardless of
representative outfall status. Qualitative monitoring shall be performed semi-annually as
specified in Table 4; and Auri required analytical monitoring events (unless th&permittee
is required to perform further qualitative sampling per the Qualitative Monitoring
Response, below). Inabi ity to sample because of adverse'weatherconditions must be
documented in the SPPP and recorded on the DMR (see,Adverse Weather in Definitions).
Only SDOs discharging stormwater associated with industrial actiinty must be monitored
(See Definitions).
Part II Page 9 of 11

Permit No NCS000546
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 ma'intamed with the SPPP.
Table 4. Qualitative Monitoring Requirements
isc arge aracteristics
requency1
omtormg
Loca4Gion2
'Color
semi-annual
SDO
Odor
semi-annual
SDO
Clara
semi-annual
SDO
Floating Solids
'semi --an
SDO
Suspended Solids
se -an a
SDO
Foam
s . nnua
SDO
Oil Sheen
s -a Mual
SDO
Erosion or deposition at the�outfall
e'=a al
SDO
Other obvious indicators
of stormwater 2ollution
e , ' nnual
SDO
Footnotes Wr
1 Measurement Frequency Twice, pe ea u Cg measureable storm event See Table 2 for schedule of
monitoring periods through the e Vs r ittmg cycle The permittee must continue qualitative
monitoring throughout the per t renew ocess until a new permit is issued "
2 Monitoring Location Qualita a momt mg shall be performed at each stormwater discharge outfall
(SDO) regardless of represe e.o 1 status (ROS), unless ROS isgranted,speccfically for qualitative
monitoring A.copy of,any le r mg ROS`shall,be kept on site Remaining outfalls must be observed at
least once.during the permit term during a measureable storm event, except where the DWQ Regional
Office (1) agrees outfalls are truly inaccessible or cannot be made safe without excessive burden on the
permittee, or (2) determines some outfalls 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 II Page 10 of 11

Permit No NCS000546
Qualitative' monitoring is for the purposes of evaluating SPPP effectiveness, assessing new sources
of stormwater pollution, and prompting, the nermittee's response to pollution. If the permittee
repeatedly fails to respond, effectively to correct problems identified by qualitative monitoring,, or ifthe discharge causes or contributes io a water quality standar violation, DWQ may but is not
limited to:
• require,that the permittee revise, increase, o ec ase Rhl e r hitormg frequency
(analytical or qualitative) for,the remainder permit,
• require,the permittee to install structural st a controls;
• require the permittee to implement othe o w e control measures,
• require the -permittee to perform u d nstream monitoring to characterize
impacts on receiving waters; or '
• require the permittee implement a if tions to qualify fora No Exposure Exclusion.
,SECTION D: ON-SITE VEHIO E MA NANCE MONITORING REQUIREMENTS
Facilities that have any vefe tenance activity occurring on-site which uses more
than 55 gallons of new m it per month when averaged over the calendar year
shall perform analytical monitoring as specified below in Table 5. All analytical
monitoring -shall be performed during a ,measureable storm event at all istormwater
discharge outfalls (SDOs) that discharge stormwater runoff from vehicle maintenance areas,
and in accordance with the schedule presented in Table 2 (Section B).
Table 5. Analytical Monitoring Requirements, for On -Site Vehicle Maintenance
Discharge Characteristics
Units
Measurement
I're uen - 1
Sample
T i _ 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
I gallons/month
I semi-annual
Estimate
-
Part II Page 11 of 11

Permit N'o , NCS000546
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'schedul'e of
monitoring periods through the end of this permitting cycle
2 Grab2samples shall be collected within the first 30 minutes of discharge
3 Sample Location Samples shall be collected at each stormwatendischarge 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 gaugexeading must be recorded.
Failure to monitor semi-annually per permit terms immi ly institutes monthly
monitoring for all parameters, upon the, next meas � a Ie torm event, as provided in Part
II Section B.
Monitoring results shall be compared.to the bene Ir alues in Table 6. The benchmark
values in. Table 6 are not permit limits but sho e'u r
s guidelines, for the permittee's
Stormwater Pollution Prevention Plak(SPP . •ee of benchmark values require
the permittee to increase monitoringse a ement actions, increase record
keeping, and/or install stormwater Be nt Practices (BMPs),.as provided in Part
II Section B.
Table 6. BenchmarkV ues f hicle Maintenance Analytical Monitoring
Discharee�Characteristics
U_nits�
Benchmark
pH
standard
6 - 9
Non -Polar- Oil & Grease / TPH
[EPA Method 1664 (SGT -HEM)]
mg/L
15
Total Suspended Solids
mg/L
100
Part II Page 1.2 of 11

Permit No NCS000546
,PART III STANDARD CONDITIONS FOR'NPDES STORMWATER INDIVIDUAL PERMITS
SECTION A: COMPLIANCE AND LIABILITY
Compliance Schedule
The permittee shall comply with Limitations and Controls specified for stormwater discharges'm
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 thereafter on an annual bans Second'ary,containment,
as,specified in Part II; SectionA, Paragraph 2(b) of this,permit, shall be accomplished within 12
months of the effective,date of the initial permit -issuance
New Facilities applying for coverage for the first e: S rmw r Pollution Prevention Plan
shall be developed and implemented prior to the be m of ` F s from the operation of the
industrial activity and be updated thereafter on an a nu basis ondary containment, as specified
-in Part II, Section A, Paragraph 2(b) of this permits a complished prior to the beginning of
discharges from the operation of the industrial a -
Existing4acilities previously permitted d a I' or renewal: All requirements, conditions,
limitations, and controls, contained in th r (e pt new SPPP elements in this permit renewal)
shall become effective immed tely u iss this°permit New elements of'the Stormwater
Pollution Prevention Plan f p i en shall be developed and implemented'wrthin 6
months of the effective date o i er a . updated thereafter on an annual basis Secondary
containment, as specified,m P a ph 2(b) of this permrtshall be,accomplished prior to the
beginning of discharges fr the o a n of the industrial activity
Duty to Comply
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,perinit
termination, revocation.and reissuance, or modification, or denial of a permit,upon renewal
application [40 CFR 122 41]
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 whoviolates section[s] 301, 302, 306, 307„308, 318 or 405 of
theAct,, or any permit condition or limitation implementing any'such sections m a permit issued
under section 402, or4any 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 provideslhat,any person who negligently violates sections 301, 302, 306, 307, 308,,
318, or 405 of the Act, or any condition or limitationf implementing any of such sections,m 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

PermitNo 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 td,ho.knowirigly violates�such sections, or such conditiens,or limitations is subject to
criminal penalties of $5,000 to $50,000 per day of vioiation, or, imprisonmentfor not more than 3
years, or both In the case of a second or subsequent convictionfor 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)]
e. 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 who knows atithat tiRie'that he thereby°places another persomin
imminent danger of death orserious bodily injury, shall, upon conviction, be subject to a fine of
not more than $250,000 or imprisonment of -not more than 1 ears, or both In the case of a
second or subsequent conviction for a knowing endang t violation, a person shall be subject
to,afine of not more than,$500,000 or by impris en F t more han 30 years„or both An
organization; as,defined,m section 309(c)(3),(B) y n).o a 1, 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 c � victions [40 CFR 122 41(a)(2)]
f Under state law, a civil penalty of no;.ut
r $$5,0 per, violation may be,assessed against
any person who violates or fails to acc e ith the terms, conditions, or requirements
of a permit [North Carolina General § 1 -215.6A]
g Any person may be,ass= an4iffinpistWi7we penalty'by the Administrator for violating section
301, 302, 306,'307, 308, 8 4Neis Act, or any permit condition or limitation
implementing any of such iti �rmit issued under section 402. of this,Act
Administrative penalti or C iolations,are not,to exceed $16,000 per violation, with the
maximum amount o y Class nalty assessed not to exceed $37;500.• Penalties for,Class I1
violations are nott a ceed $ 000 per day for each day during which the violation continues,
with the maximum any Class lI penalty not to exceed $177,500 [33 USC 1319(g)(2)
and 40 CFR 122 41(
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 adverselyaffecting 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 W4F elieve the permittee from any responsibilities,
liabilities, orpenalties 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
Oil and'Hazardous SubstanceLiability
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
subjecuto 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 Z of 9

Permit No NCS000546
personal'rights, nor any infringement of Federal, State or local lawsior,regulations [40 CFR
122 41(g)]
Severability
The pruvisions of this pet mit at e severable, dnd if any,pt ovisiuu of ilia pztiint, or1,Ufe,apphcau0n•0f'
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 15013-23]
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,terminating the permitlissued 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)]
9 Penalties for Tampering
The Clean Water Act provides that any person who sib , to , e or knowingly renders
inaccurate, any monitoring,device or method,requir be main ' ed under this,permit shall, upon
conviction, be punished by aifine of not more than $ OU er,violation„or, by imprisonment for not
more than two years per violation, or by both If vi on f'a person is for a violation committed
after a first conviction of such person under t p unishment is a fine of not more than
$20,000 per'day of violation, or,by impriso en f re than 4 years, or both [40 CFR 122 41]
10 Penalties for Falsification of Re orts
The Clean Water Act provid - at p rso o knowingly makes,any false statement,
representation, or certificate i y co or other document -submitted or required to be
maintained underlthis permit - i M itoring:reports or reports of compliance or
noncompliance shall, upo nvicte , 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 Co, s
This,permit does not aut ' e or approve the construction of any onshore or offshore•physecal
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 2.1(d)]. Any permittee`that has'not requested renewal atleast 180 days
prior to expiration, or°any permittee that does not have.a permit after'the+expi ration, and,has not
requested "renewal atleast 180 days prior to•expiration, will 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 Directormay condition approval in accordance with
NCGS 143-215 1,:nparticular NCGS 143-215 1�(b)(4)b 2 , and.may require modification or,revocabon
and,reissuance,of the permit, or a minor modification, to identifythe new permittee -and 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,corpoi
fesponsible corporate officer means (a) a
the corporation in charge of a principal bu:
similar policy or decision making function!
more manufacturing, production, or opera
to make management,decisions which gsk
having theiexplicit or implicit duty of
and initiating and directing other c pr
environmental compliance`with it i
ensure that the,necessary sysje s ar s
accurate informal
documents has'be
procedures
(2) Fora partnership
or
(3) Fora mumcip
officer or ranks I?
r the purpose.of this Section, a
p ide se eta ry . easurer or vice president of
ess, nct n, y other person`who performs
or a co PO on, or (b) the manager of one or
a- ties, provided, the manageris authorized
gin Eh op ation' of the regulated facilityincluding
ng "alo apital'invest ment recommendations,
e 'v easures to assure long term
'1 laws and regulations, the manager can
fished or actions taken to,gather,complete and
1 requirements, and where authority to sign
'toAe manager in accordancewith corporate
le pILUp'Detorship by a general partner or the proprietor, respectively,
, or other public agency by either a principal executive
[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 representativeaonly,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 overallresponsibility for,environmental matters'forithe company
(A duly authorizedxepresentative 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 docurnent,under paragraphs a or b of this section shall rriake
the following certification [40 CFR 122 221 NO OTHER STATEMENTS OF CERTIFICATION WILL
BE ACCEPTED
"/ certify, under penalty of law, that th►s document and all attachments were prepared under my
direction orsuperv►s►on ►n aecordance`with a,system designed to,assure thatquai►f►ea personnel
properlygather and evaluate the information submitted Based on, my'►nqu►ry 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 I
am aware that,there are significant penalties for'subm►tt►ng false information, including the
possibility of fines and imprisonment for,knowing violations "
4 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 term ting.the permit as allowed,by the
laws, rules, and regulations contained in Title 4`0, Codelof F d Regulations, Parts 122'and'123,
Title 15A of the North Carolina Administrative Code, l e O1 and North Carolina
General Statute 143-215 1 et al ((
Permit Actions
The permit may -be modified, revoked ,and reiss , to ed for cause The notification of
planned changes or anticipated noncom/bnit,
YeeRea'uiremehtst any permit condition [40 CFR
122 41(f)]
Annual Administerin and Co liars
The permittee must pay th dI ni an mpliance monitoring fee within 30�(thirty,) days
after being billed by the Divisi . ilu ay the fee -in timely manner in accordance with 15A
NCAC 2H 0105(b)(2) may c s vi ' n to initiate action to revoke the permit
SECTION C: OPERATION AND MWINTENAICE OF POLLUTION CONTROLS
The permittee shall at all times properly operate and maintain all facilities and systemsoof 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)]
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 permit
[40 CFR 122 41(c)] •
Bynassing•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 NCS000S46
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 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
Representative, Sam pling
Samples collected and measurements taken, as required herein, shall be characcer►suc of me 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,cha - cteristic of the discharge All
samples shall be taken before the discharge,joins=or is sA41
other waste stream, body of
water, or,substance Monitoring points as specifieda all t bexhanged without
notification to and approval of the Permit;Issumg A or41(j)]
Recording Results
For each, measurement or sample taken pursuant he i ments of this permit, the permittee
shall record`the following information [40 CF 4
a The date, exact place, and time of sam g me ements,
b The individual(s) who performed t a in � measurements,
c The date(s) analyses w erf
d 'The individual(s) who p o ed e a lyses,
e. The analytical technique t d sed, and,
f The results of such a vses
3, 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
4 Test Procedures
Test procedures for the analysis of pollutants shall conform tothe 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 reportmglevel of the procedure If,no approved methodsare
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,
5 Representative Outfall
If a facility ha"s multiple discharge locations with substantially identical stormwater discharges that
are required to be sampled, the peri-nittee,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-Iil Page 6 of'9

Permit'No NCS000546
Records Retention
Visual monitoring shall be documented and records maintained at the facility along with the
Stormwater Pollution Prevention Plan Copies of analytical monitoring results shall also -be
maintained on-site The permittee shall retain records of all monitoring information, including
o all Laiibra iun and nldmLend[n.e retards,
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 maybe extended by request of the, Director
at any,ti,i,e [40 CFR122.41]
7 Inspection and Entry
The permittee shall allow the Director, or an author®retative (including an authorized
contractorracting,as arepresentative of'the,Directoof a cility which discharges
through a municipal separate storm sewer,system, entative of a municipal
operator or the separate storm sewer system receiupon the presentation,of
credentials and other documents as.may be require
a Enter upon the,permittee's premises,,
or where,records must be kept under
b Have access to and copy, at reasonabl
of this permit,
c. Inspect at reasonable ti s y G.",
equipment), practices, or er to 1
d Sample or monitor at reas bl e
otherwise authorized b e Cle
CFR 122.41(1)]
SECTION E: REPORTING
Discharge Monitoring Reports
cility or activity is located or conducted,
s permit,
that must be kept under the conditions
ment (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 Reporti(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 discharge4nonitoring 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 permlt,using test
procedures approved under 40 CFR Part 136 and at a sampling location specified 1n this permit or
other appropriate instrument governing the discharge, the results of such monitoring shall be
included in the data'submltted 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 monrtoring 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
Central.Flles
Division of Water Quality
1617 Mail Service Center
'Raleigh, North Carolma'27699-16,17
3 Availability of Reoorts
Except.for data determined to be confidential under NCGS 143-215 3(a)(2) or Section 308 of the
Federal Act,33 USC 1318,,ail reports prepared m.accordance with the terms shall be available for
public inspection at the offices'o'f the Division. As'required by the Act,analytical,d'ata,shall not be
considered,confi'dential Knowmgly,makmg any°false statement o,& any such report 'may result in the
imposition of criminal penalties as provided for in NCGS 1,44,6B or in Section 309 of the Federal
Act A It
4 Non-Stormwater Discharees
If the storm event monitored m,accordance withthe coincides with a non-Stormwater
discharge, the permittee shall separately monitor ar et ,s as required under all other
applicable,discharge permits and provide'th►s on th the Stormwater discharge monitoring
report
5 Planned Chances
0
The permittee shall,give nXwe.. cto ams soon as possible of any,planned changes at the
permitted facility which co ter the nature or quantity of pollutants discharged [40
CFR 122 41(1)] This notift includes pollutants which.are not specifically listed in
the,permit or subject to no under 40 CFR Part 122�41(a).
Thepermittee shall giv otice to the Director of any,planned changes at the permitted
facility which may result' ncompliance with the permit'[40 CFR 122.41(1)(2)]
7 sills
The permittee shall report to the local DW,Q 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 orrmore, any spill regardless of amount tharcauses a,sheen on surface waters, any oil
spill regardless of amount,occurring within 100 feet ofsurface waters,,and any oil spill less than 25
gallons that cannot'be cleaned up within 24 hours
Bypass
Notice [40 CFR 122 41(m)(3)]
a Anticipated bypass If the permittee knows m,advance of the need for a bypass, itshall submit
prior notice, if possible arleast ten days before the date of the bypass,°mclud►ng,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
9 Twenty-four Hour Reporting
G 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 permiumbecomes
°aware ofthe circumstances
PartIll Page 8 of.9

Permit 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 noncom pliance,has not
been corrected, the anticipated time compliance is expected to continue, and steps taken.or
planned to reduce, eliminate, and pi eveni i euc.uu► i,ence,uf the noneucnphance,[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 at [phone], [phone] or [phone]
1'0 Other`Noncompliance
The permittee shall report all instances of noncompli ce t orted under 24 hour reporting at
the time monitoring reports are submitted [40 CFR41
11 iOther'Information
Where the Permittee becomes aware that it faded
or submitted incorrect information in a permit
promptly submit such facts or -information [4
Part III Page 9 of 9
any relevant facts in a permit application„
:#h any report to the Director, it shall
(8)]

4
PART IV DEFINITIONS
ALL
See Clean Water Act
NCS000546
Adverse Weather
Adverse,conditions are' those that are dangerous or create maccessibihty forpersonnel, such,as local
floodmg,,high winds, or electrical'`stbrms; or situations that otherwise,make samplmg;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 ment during the next -qualifying
storm event Documentation of anadverse event (wit dat , and written narrative) and the
rationale must be included with,your'SPPP records e ther es'not°exempt the,permittee
from having to file a monitoring report in accords wi he a schedule Adverse,events and
failuresto monitor must also be explained and rep Re on the r ant DMR
Allowable Nbn-Stormwater Discharees
This permit -regulates stormwater disch
the stormwater conveyance system are
a All othendischarges that are-authoi
b Uncontaminated groundwater, fgul
chemicals, springs, disAi
flushings, water from fo
c Discharges resulting fro
as a result of'use-in tt}g4
discharges which shall be allowed,m
1 b no stormwater NPDES permit
i s, air -conditioner condensate withoutadded'
' ated potable water, waterline and fire hydrant
ws,from riparian habitats and wetlands
De fire -fighting training, or,emergency,shower, or eye wash
rgency
Measures or'practicesW,tivity,
uce the amount of pollution entering surface waters. BMPs may
take the form of a procor,physical structure More information on BMPs can be found at
http //cfpub epa gov/npdes/stormwaterlmenuotbmps./index cfm
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 forthe 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,m close,proxini ty 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 coversheet'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 CleanWater 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 issumg.authority
11 EMC
The Nui tit Carolina EfivironnleilLai ManageinenL%OmYnISSIon
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 CFR Part 116 ptirsuant,to Section 311 of the Clean Water Act
14 Landfill
A disposal facility or, part of a :disposal facility where waste ed in or on land and which is not a
land treatment facility, a surface impoundment, an 1 1 e a haza ous waste long-term
storage facility or a surface storage facility t 6
15 Measureable Storm Event
A storm event that results in an actual discharge
,measurable,storm event must have be
apply if the permittee is able'to docu
events during the sampling period, an
copies of this information and a wattAfter authorization by the D 6 e o
permittee's-SPPP.
16
th itted site outfall The previous
rs or The 72 -hour storm interval may not
:r' erval is representative�for local storm
al from the local DWQ Regional Office Two
shall be sent,to the local DWQ Regional.Office
ten approval letter must be kept;on site in the
A stormwater,collections7stem wit i�an incorporated area of local self-government such as a city or
town
17 No Exposure IRMMWFI
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 Storniwater Permitting
requirements only if a facility complies with the terms and conditions described in 40 CFR
§122 26(g)-
18
1,9
20
Notice of Intent
The "state application form which, when submitted to the Division, officially indicates the facility's
noticeiof intent to seek coverage under a General Permit
Permit Issuing Authority
The Director of the Division,of Water Qualityl(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
Any4iscernible,,confined and,discrete,conveyance including, butnot specifically limited to, any pipe,
ditch, channel; tunnel, conduit, well, or discrete fissureafrom which stormwater is or may be
discharged to :vaters�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
di'schargesat 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
Spill containment for the contents of the single largest tank within the Containment structure;pius
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 e o uperfund Amendments and
Reauthorization Act (SARA) of 1986, also titled' mergen annmg and, Community Right -
to -Know Act of 1986,
c Is present at or above threshold'levels at a fa_cAgy,su - ° o SARA title 111, Section 313 reporting
requirements, and
d Meets at least one of the following crite
i Is,listed in appendix D of 40 C ar 22, Table II (orgamc;priority pollutants), Table III
('certain metals, cyanides, a he Table IV (certain toxic`pollutants;and hazardous
substances),
ii. Is listed as a haza u ub n ursuant to section 311(b) (2)(A) of the CWA,at 40 CFR
116 4, or
u► Is a pollutant fo ich A s published acute'or chronic water quality criteria
25
Substantial physical daoperty, damage to the control facilities which causes them to
become inoperable, or su tial and permanent loss of natural resources which can reasonably be
expected to occur'm 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, fe"rtilizers, 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 -t - o releases of oil or hazardous substances in excess of reportable
1
quantities under section 3,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 ofstormwater from a discermbl'e,,confined, or discrete conveyance, including
but not,limrted to, storm sewe_r,pipes, dra►nage,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 occur,s,tmmediately followmg°ramfall
or as�a result,of snowmelt.
30 Stormwater AbsuOaLed wtLh Industrial ACl1VItV
The discharge`from any point source which is used for collecting and conveying stormwater and
which is directly related Mmanufacturing, processing`orraw 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-PoIluhon.Prevention Pian
A comprehensive site-specific plan which•details measures and practices to.reduce stormwater
pollution and is based on an evaluation of the pollution potential,&f the site
32 Total Maximum Daily Load (TMDLj
TMDLs,are'written plans for'attammg and maintain , g w r �1 • ndards, in all seasons, for a
specif owater body and pollutant A list<of approve v Ls for t tate of North Carolina can be
found at httD://Dortal.ncdenr.ore/web/wo/Ds/ I
33 Toxic Pollutant
Any pollutant listed as toxic under Section 3 (a ) f Clean Water Act
�34 Vehicle Maintenance Activity,
Vehicle rehabilitation, mecn Ir • alt pa g, fueling, lubrication, vehicle cleaning operations,
or airport deicing operations
35 Visible�Sedimentation
Solid particulate matter, • th 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