NCS000373_APPLICATION_20100310

STORMWATER DIVISION CODING SHEET
NCS PERMITS
PERMIT NO.
Ncsoor�3�3
DOC TYPE
❑ FINAL PERMIT
❑ MONITORING REPORTS
X APPLICATION
❑ COMPLIANCE
❑ OTHER
DOC DATE
❑ Z010 p31 D
YYYYMMDD

The Charlotte Observer Publishing Co.
Charlotte, NC
North Carolina ) ss Affidavit of Publication
Mecklenburg County)
THE CHARLOTTE OBSERVER
i
DINA SPRINKLE s
NCDENR/DWO/POINT SOURCE BRANCH
1617 MAIL SERVICE CENTER
RALEIGH NC 27699
REFERENCE: 30063432
6475083 stormwater 6/9/10
Before the undersigned, a Notary Public of said
County and State, duly authorized to administer
oaths affirmations, etc., personally appeared,
being duty sworn or affirmed according to law,
Both depose and say that he/she is a
representative of The Charlotte Observer
Publishing Company, a corporation organized and NC DIVISION OFWFTER OUALIWINTENTTO ISSUE A,
STORM WATER DISCHARGE PERMIT
doing business under the laws of the State of Pro 10 comment or odIechen In ilhi pmart,s intited.Submit
w".11 comments to 01a at the arldmss below. All comments
Delaware, and publishing a newspaper known as The s received prior to July 16, 2010 will be considered in the final
determination regarding permit arterial and pemnl provisions,
Charlotte Observer in the city of Charlotte, s ppplicaitan: Michelin Aircrall . Tire Dom any. ADivision of
County of Mecklenburg, and State of North Carolinas msa0plamir ao NFOESroadmit,scrrtm,saminowBiCo-06�
.industrial facllity, al: Michelin Aircraft Pre Company. A Division of
and that as such he/she Is familiar With the MichelinN Amenca.Inc., 40569 S Stainly School Norwood, NC,
Slat Doom, The facility discharges to ea unnamed tributary tp
books, records, files, and business -of said Carter Creek.
Cl of the draft permit. No. NCS000073, are available at:
Corporation and by reference to the files of said 1 hull! nI o en1 �(wsLsp[cu n a Ill. Additional
publication, the attached advertisement was Ponni docmountsram available for coo roproduclion cast at:
p )5DWO '12 NSSuhrmmy Stoomwater Pmet(locorral9ioo Darizip 27604)
inserted. The following is correctly copied from 1617 Mall service Center (mail)
t Relelgh, NC 276u9-1617 I
the books and files of the aforesaid Corporation s DWO contact: Soon Lowther '
and Publication. (919)W76366
s - r¢fyinl w4h arxe nlg�
._ LP6475063
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PUBLISHED ON: 06/12 s
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AD SPACE: 56 LINE s
FILED ON: 06/17/10 s
NAME: TITLE:
DATE: Zulu
In Testimony Whereof I have hereunto set my hand and affixed my seal, the '
day and year aforesaid.
My Commission Expires May 17, 2011
Note . mnission Expires:
1

� F
_*
NC®ER
North Carolina Department of Environment and Natural Resources
Beverly Eaves Perdue
Division of Water Quality
Coleen H. Sullins
Governor Director
June 2, 2010
Ms. Lisa Myers
Michelin Aircraft Tire.Company,,a Division
of Michelin North America, Inc.
Dee Freeman
Secretary
40589 S Stanly School
Norwood, NC 28128
Subject: Draft NPDES Stormwater Permit
Permit No. NCS000373
Michelin Aircraft Tire Company, a Division
of Michelin North America, Inc.
Stanly County
Dear Ms. Myers:
Enclosed with this letter is a copy of the draft stormwater permit for your facility. Please review the draft
very carefully to ensure thorough understanding.of.the.conditions and requirements it contains._
The draft permit contains the following significant changes from this facility's current permit:
Analytical monitoring changes:
1. Analytical monitoring parameters, COD and pH, have been maintained in this permit. Oil and Grease has
been replaced with Total Petroleum Hydrocarbons (TPH). Method 1664(SGT-HEM) is specified.
2. All analytical monitoring remains at semi-annually during a representative storm event as defined in Part
II Section B. The permittee must also document the total precipitation for each event. If no discharge
occurs during the sampling period, the permittee must submit a monitoring report indicating "No Flow'
within 30 days of the end of the six-month sampling period. Additionally, samples must be taken a
minimum of 60 days apart, as specified in Table 2.
3. 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. If the sampling results are above a benchmark value, or outside of the benchmark range, for
any parameter at any outfall then the facility shall follow the Tier 1 guidelines which require a facility
inspection within two weeks and implementation of a mitigation plan within two months. If during -the
term of this permit, the sampling results are above the benchmark values, or outside of the benchmark
range, for any specific parameter at a specific discharge outfall two times in a row (consecutive), then the
facility shall follow the Tier 2 guidelines which require a repetition of the steps listed For Tier land also
immediately institute monthly monitoring for all parameters at every outfall where a sampling result
exceeded the benchmark value for two consecutive samples.
4. You are required to collect all of the analytical and qualitative monitoring samples during representative
storm events as defined in Part II Section B. Qualitative monitoring is required regardless of
representative outfall status.
5. You are responsible for all monitoring until the renewal permit is issued. See Footnote 1 of Tables 1, 4,
and 5.
Wetlands and Stomtwater Branch
One
1617 Mail Service Center, PatelNorth Carolina 27699-1617
NOFtt1CaFOtllla
Location: 512 N. Salisbury St. PatelNorth Carolina 27604
Phone: 91 M07-63001FAX: [phone] Customer Service: 1-877-623-6748
q//
Nq tul'LLLLL/
Internet:w .nmaterqualily.org
An Equal Opportunity\ Affirmative Action Employer

Ms. Lisa Myers
Michelin Aircraft Tire Company
Permit No. NCS000373
6. Vehicle maintenance monitoring has remained at semi-annually in order to coincide with analytical and
qualitative monitoring. Monitoring for TPH has replaced Oil & Grease. This requirement appears in all
Individual Stormwater permits, however it only applies to facilities that do vehicle maintenance. If the
facility begins vehicle maintenance during the permitted timeframe then the requirements shall apply.
Other permit changes:
1. Information regarding the No Exposure Exclusion has been added to this draft 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 Exposure Exclusion from NPDES stormwater discharge permit
requirements. Additional information is provided in Part I Section A.
2. In addition to submitting two signed copies of DMRs to Central Files, a separate signed Annual Summary
DMR copy must be submitted to the local DWQ Regional. Office by March 1 of each year.
Please submit any comments to me no later than thirty (30) days following your receipt of the draft.
Comments should be sent to the address listed at the bottom of this page. If no adverse comments are
received from the public or from you, this permit will likely be issued in about two months.
If you have any questions or comments concerning this draft permit, contact me at [phone] or
[e-mail]
ic: Mooresville Regional Office _
Stormwater Permitting Unit
Attachments: Draft PermitNCS000373
Sincerely,
''45�
Brian Lowther
Environmental Engineer
Stormwater Permitting Unit
2

NCS000373
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
DIVISION OF WATER QUALITY
PERMIT
TO DISCHARGE STORMWATEit.. UNDER THE
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM
In compliance with the provisions of North Carolina General Statute`l43-215.1, other lawful
standards and regulations promulgated and adopted by theNorth Carolina Environmental
Management Commission, and the Federal Water Pollution Control Act, as amended,
�, 7f
n
Michelin North America, Inc. .
�;. t
is hereby authorized to discharge stormwater from a facility located at
43Michel in.Aircraft Tire Company
j` 4058? South Stanly School Road
Norwood, NC
Stanly County
to receiving waters designated as unnamed tributary to Cedar Creek, a class WS-IV stream in the
Yadkin Pee -Dee River Basin, in accordance with the discharge limitations, monitoring
requirements, and other conditions set forth in Parts 1, 11, III, IV, V and VI hereof.
Note: Draft Permit Dates are Approximate
This permit shall become effective August 1, 2010.
This permit and the authorization to discharge shall expire at midnight on July 31, 2015
Signed this day July 10, 2010.
for Coleen H. Sullins Director
Division of Water Quality
By the Authority of the Environmental Management Commission

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Permit No. NCS000373
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TABLE OF CONTENTS
PART I
INTRODUCTION
Section A:
Individual Permit Coverage
Section B:
Permitted Activities
Section C:
Location Map
PART II
Section A:
Section B:
Section C:
Section D:
PART I❑
Section A
MONITORING, CONTROLS, AND LIMITATIOl
DISCHARGES
1
Stormwater Pollution Prevention Plan
Analytical Monitoring Requirements 'r
Qualitative Monitoring Requirements
PERMITTED..
On -Site Vehicle Maintenanee.Monitoring Requirements
STANDARD CONDITIONS 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
Section B: General
Conditions
1.
Individual Permit Expiration
2.
Transfers
3.
Signatory Requirements
i

Permit No. NCS000373
4. Individual Permit Modification, Revocation and Reissuance, or
Termination
5. Permit Actions
Section C: Operation and Maintenance of Pollution Controls
l . Proper Operation and Maintenance
2. Need to Halt or Reduce Not a Defense
3. Bypassing of Stormwater Control Facilities
Section D:''' Monitoring and Records
1. Representative Sampling
2. Recording Results
3. Flow Measurements <�
4. Test Procedures
5. Representative Outfall��
6. Records Retention
7. Inspection and Entry
Section E: Reporting Requirements\
l . Discharge Monitoring Reports
2. Submitting -Reports
3. .Availability of Reports
4. Non-Stonnwater Discharges
5. Planned Changes
6. Anticipated Noncompliance
7. Spills
8. Bypass
9. Twenty-four Hour Reporting
10. Other Noncompliance
11. Other Information
PART IV LIMITATIONS REOPENER
PART V ADMINISTERING AND COMPLIANCE MONITORING FEE
REQUIREMENTS
PART VI DEFINITIONS
ii

Permit No. NCS000373
PART I INTRODUCTION
SECTION A: INDIVIDUAL PERMIT COVERAGE
During the period beginning on the effective date of the permit and lasting until expiration, the
pennittee is authorized to discharge stonnwater associated with industrial activity. Such
discharges shall be controlled, limited and monitored as sr- cified in this permit.
If industrial materials and activities are not exposed to precipitation or runoff as described in 40
CFR §I22.26(g), the facility may qualify for a No Exposure Exe.!usion from NPDES stonnwater
discharge permit requirements. Any owner or operator wisl;ing to obtain a No Exposure
Certification must submit a No Exposure Certiftcation,NO] form to the.Division; must receive
approval by the Division; must maintain no exposure conditions unless authorized to discharge
under a valid NPDES stonnwater permit; and must reapply for the No Exposure Exclusion once
every five (5) years.IX
X.,
i i
SECTION B: PERMITTED ACTIVITIES
Until this permit expires or is modified or revoked; the pennittee is authorized to discharge
stonnwater to the surface waters of North Carolina or separate storm sewer system that has been
adequately treated and managed in accordance with the tenns and conditions of this individual
permit. All stonnwater discharges shall be'in accordance with the conditions of this permit.
Any other point source discharge to surface waters of the state is prohibited unless it is an
allowable non-stormwater discharge or is covered by another permit, authorization, or approval.
The stonnwater discharges allowed by this individual pennit 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

SECTION C: LOCATION MAP
Permit No. NCS000373
NCS000373
Map Scale 1.24, 000
Michelin Aircraft The Company A Division
of Michelin N. America, Inc.
Labude: 350 19' 0)" N
Longitude: 800 09' 32" W
County: Sta,ly
Receiving Stream: Cedar Creek PT)
Stream Cass: WS-IV
Sub -basin: 03-07-08 (Yadkin -Pee Dee Rive Basin)
ma .iia w i
Facility Location
Part I Page 2 of 2

Permit No. NCS000373
PART II MONITORING, CONTROLS, AND LIMITATIONS FOR
PERMITTED DISCHARGES
SECTION A: STORMWATER POLLUTION PREVENTION PLAN
The_Permittee shall develop a Stormwater Pollution PreventicLn Plan, herein after referred to as
the Plan. This Plan shall be considered public information in Accordance with Part III, Standard
Conditions, Section E, Paragraph 3 of this individual permit.)'he Plan shall include, at a
minimum, the following items:
Site Plan. The site plan shall provide a description of the physical facility and the
r"•l
potential pollutant sources which may be expected to, -contribute to contamination of
stormwater discharges. The site plan shall contain ttie,following:
(a) A general location map (USGS quadrangle map or iately drafted
equivalent map), showing the facility's"location in relation to transportation routes
and surface waters, the name of the -receivin' 4water(s) to which the stormwater
outfall(s) discharges, or if the dischargeJs to a municipal separate storm sewer
system, the name of the municipality and the ultimate receiving waters, and
accurate latitude and longitude of thepoint(s) of discharge. The general location
map (or alternatKv Il the site map) -shall identify whether each receiving water is
impaired (on the state's 303(d)ylist of impaired waters) or is located in a
l".
watershed for whieh'a TMDL has been established, and what the parameter(s)
of concern are!
(b) A narrative description of storage practices, loading and unloading activities,
outdoor processa as, dust or particulate generating or control processes, and
waste disposal practices. A narrative description of the potential pollutants which
could be expected to be present in the stormwater discharge from each outfall.
(c) - A site map drawn to scale (including a distance legend) showing: the site property
boundary, the stonnwater 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, all drainage features and structures, drainage areas for each outfall,
direction of flow in each drainage area, industrial activities occurring in each
drainage area, buildings, existing BN1Ps, and impervious surfaces. The site map
must indicate the percentage of each drainage area that is impervious.
(d) A list of significant spills or leaks of pollutants that have occurred at the facility
during the three (3) previous years and any corrective actions taken to mitigate
spill impacts.
(e) Certification that the stormwater outfalls have been evaluated for the presence of
non-stormwater discharges. The certification statement will be signed in
accordance with the requirements found in Part Ill, Standard Conditions, Section
Part 11 Page 1 of

Permit No. NCS000373
B, Paragraph 5. The pernittee shall re -certify annually that the stormwater
outfalls have been evaluated for the presence of non-stormwater discharges.
Stonnwater Management Plan. The stormwater management plan shall contain a
narrative description of the materials management practices employed which control or
minimize the exposure of significant materials to stormwater, including structural and
nonstructural measures. The stormwater management plan, at a minimum, shall
incorporate the following:,
(a) Feasibility Study. A review of the technical and economic feasibility of changing
the methods of operations and/or storage practices to eliminate or reduce exposure
of materials and processes to stormwater..Wherever practical, the permittee shall
prevent exposure of all storage areas, material handling operations, and
manufacturing or fueling operations. In'areas where elimination of exposure is
not practical, the stonnwater management plan shall document the feasibility of
diverting the stormwater runoff away from areas of potential contamination.
(b) Secondary Containment Requirements and Records. Secondary containment is
required for: bulk storage of liquid materials; storage in any amount of Section
313 of Title III of the Superfund Amendments and Reauthorization Act (SARA)
water priority chemicals; and storage in any amount of hazardous substances, in
order to prevent leaks and spills from contaminating stonnwater runoff. A table
or summary of all such tanks and stored materials and their associated secondary
containment areas shall be maintained. If the secondary containment devices are
connected to stonnwateciconveyance systems, the connection shall be controlled
by manually activated valves or other similar devices (which shall be secured
closed with a/locking mechanism), and any stormwater that accumulates in the
containment area shall be at a minimum visually observed for color, foam, outfall
staining, visible sheens and dry weather flow, prior to release of the accumulated
stormwater. Accumulated stonmvater shall be released if found to be
uncontaminated by any material. Records documenting the individual making the
observation, the description of the accumulated stonnwater, and the date and time
of the release shall be kept for a period of five years.
(c) BMP Summary. A listing of site structural and non-structural Best Management
Practices (BMP) 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 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.
3. Spill Prevention and Response Plan. The Spill Prevention and Response Plan (SPRP)
shall incorporate an assessment of potential pollutant sources based on a materials
inventory of the facility. Facility personnel (or the team) responsible for implementing the
SPRP shall be identified in a written list incorporated into the SPRP and signed and dated
by each individual acknowledging their responsibilities for the plan. A responsible
Part ❑ Page 2 of 9

Pemut No. NCS000373
person shall be on -site at all 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.
4. Preventative Maintenanc& and Good Housekeeping Program. A preventative
maintenance and good housekeeping program shall be developed. The program shall list
all stormwater control systems,, stormwater discharge outfalls, all on -site and adjacent
surface waters and wetlands, industrial activity areas (including material storage areas,
material handling areas, disposal areas, process areas,`loading and unloading areas, and
haul roads), all drainage features and structures,, and existing structural BMPs. The
program shall establish schedules of inspection's, maintenance; and housekeeping
activities of stormwater control systems, as well as facility equipment, facility areas, and
facility systems that present,a potential for stormwater exposure or stormwater pollution.
Inspection of material handling areas and regular cleaning schedules of these areas shall
be incorporated into the program. Timel'coin lian'e with the established schedules for
inspections, maintenance, and housekeeping shalfbe recorded in writing and maintained
in the SPPP.
5. 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. Facility personnel (or team)
responsible for implementing the training shall be identified, and their annual training
shall be documented by the signature of each employee trained.
6. Responsible Party. The Stormwater Pollution Prevention Plan shall identify a specific
position(s) responsible for the overall coordination, development, implementation, and
revision to the Plan. Responsibilities for all components of the Plan shall be documented
and position assignments provided.
Plan Amendment. The permittee shall amend the Plan whenever there is a change in
design, construction, operation, or maintenance which has a significant effect on the
potential for the discharge of pollutants to surface waters. All aspects of the
Stormwater Pollution Prevention Plan shall be reviewed and updated on an annual
basis. The annual update shall include an updated list of significant spills or leaks of
pollutants for the previous three years, or the notation that no spills have occurred. The
annual update shall include written re -certification that the stormwater outfalls have been
evaluated for the presence of non-stormwater discharges. Each annual update shall
include a documented re-evaluation of the effectiveness of the BMPs listed in the BMP
Summary of the Stormwater Management Plan.
The Director may notify the permittee when the Plan does not meet one or more of the
minimum requirements of the permit. Within 30 days of such notice, the permittee shall
Part 11 Page 3 of 9

Permit No. NCS000373
submit a time schedule to the Director for modifying the Plan to meet minimum
requirements. The permittee shall provide certification in writing (in accordance with
Part 111, Standard Conditions, Section B, Paragraph 5) to the Director that the changes
have been made.
8. 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 halfcf 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
arc different from, and in addition to, the stonnwater,.discharge characteristic monitoring
required in Part lI B and C of this permit.
9. Implementation. The permittee shall implement fhe Plan.\lmplementation of the Plan
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 documentati6n shall. be kept on -site for a period of
five years and made available to the Director or the Director's authorized representative
immediately upon request.
Part It Page 4 of 9

Permit No. NCS000373
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 representative storm event. The required
monitoring will result in a minimum of ten analytical samplings being conducted over the term of
the permit at each stormwater discharge outfall (SDO).
A representative storm event is a storm event t1pt.measures greater than 0.1 inches of rainfall. The time
between this storm event and the previous storm event measuring greater than 0.1 inches must beat least
72 hours. A single storm event may have a period of no precipitation of up to 10 hours. For example, if
it rains but stops before producing any collectable discharge, a sample maybe collected if the next rain
nroducine a discharge beeins within 10 hours. '
Table 1. Analytical Monitoring Requirements��
Discharge
Measurement Frequency]
Sample
Sample
Characteristics
Units
Ty e2
Location3
Chemical Oxygen Demand
tmg/L
/semi-annual
Grab
SDO
TPH
Grab
SDO
mg/L
/ / semi=� ual
EPA Method 1664 (SGT-HEM)]'r
H
'_standard
'semi-annual
Grab
SDO
Total Rainfall4
in
� > semi-annual
Pain Gauge
Footnotes:
I Measurement Frequency: Twice per year during a representative storm event.
2 Grab samples shall be collected withiu.the first 30 minutes of discharge.
3
Sample Location: Samples shall be collected at each stormwater discharge outfall (SDO) unless representative outfall
status has been granted.
4 For each sampled representative storm event the total precipitation must be recorded. Anon -site rain gauge or local rain
gauge reading must be recorded.
The permittee shall complete the minimum ten analytical samplings in accordance with the
schedule specified below in Table 2. A minimum of 60 days must separate Period l and
Period 2 sample dates unless monthly monitoring has been instituted under a Tier Two
response.
Part 11 Page 5 of 9

Permit No. NCS000373
Table 2. Mnnitnrinn Schedule
Monitoring periodt,2
Sample Number
Start
End
Year I — Period 1
1
August 1, 2010
December 31, 2010
Year 1 — Period 2
2
January 1, 2011
June 30, 2011
Year 2 — Period 1
3
July 1, 2011
December 31, 2011
Year 2 — Period 2
4
January 1, 2012
June 30, 2012
Year 3 — Period 1
5
rl July 1, 2012
December 31, 2012
Year 3 — Period 2
6
X:, January 1, 2013
June 30, 2013
Year 4 — Period 1
7
July 1, 2013
December 31, 2013
Year 4 — Period 2
8
January 11 2014
June 30, 2014
Year 5 — Period 1
9
July 1, 2014�1
December 31, 2014
Year 5 — Period 2
10
January I, 2015
July 31, 2015
Footnotes:
1 Maintain semi-annual monitoring during permit renewal process. If at the'expiration of the Individual
Permit, the pennittee has submitted an application for renewal of coverage before the submittal deadline,
the permittee will be considered for renewed coverage. The \ppli ant must continue semi-annual
monitoring until the renewed permit is issued. � \ -
2 If no discharge occurs during the sampling period, the permittee must submit a monitoring report indicating
"No Flow" within 30 days of the end of the .six-month sampling period.
The permittee shall report the a alyticaresults from each sample within the monitoring period. 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). Exceedences of benchmark values require the
permittee to increase monitoring, increase management actions, increase record keeping, and/or
install stonmvater Best Management Practices (BMPs) in a tiered program. See below the
descriptions of Tier One and Tier Two.
Table 3_ Benchmark Values for Analvtical Monitoring
Discharge Characteristics
Units
Benchmark
Chemical Oxygen Demand
mg/L
120
TPH
mg/L
15
PH
standard
6-9
Partll Page 6 of 9

Permit No. NCS000373
Tier One
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:
1. Conduct a stormwater management inspection of the facility within two weeks of receiving
sampling results.
2. Identify and evaluate possible causes of the benchmark value exceederice..
3. Identify potential and select the specific: source'controls, operational controls, or physical
improvements to reduce concentrations of the parameters of concern, or to bring concentrations
within the benchmark range.
4. Implement the selected actions within two months of the inspection.
5. Record each instance of a Tier One response in the Stormwater Pollution Prevention Plan. Include
the date and value of the benchmark exceedence, the, inspection date; the personnel conducting the
inspection, the selected actions, and the date the selected actions were implemented.
Tier Two
If: During the term of this permit, the first valid sampling results from two consecutive monitoring periods
are above the benchmark values, or outside ofthe benchmark range, for any specific parameter at a
r
suecifie discharge outfall:
Then: The permittee shall:
1. Repeat all the required actions outlined above in.Tier One.
Al
2. Immediately institute monthly monitoring for all parameters at every outfall where a sampling result
exceeded the benchmark value for'two consecutive samples. Monthly (analytical and qualitative)
monitoring shall continue.untiNf ree consecutive sample results are below the benchmark values or
within the 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. Maintain a record of the Tier Two response in the Stormwater Pollution Prevention Plan.
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 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 stommwater control measures; or
• require that the permittee implement site modifications to qualify for the No Exposure Exclusion.
SECTION C: Qualitative Monitoring Requirements
Part 11 Page 7 of 9

Permit No. NCS000373
Qualitative monitoring requires a visual inspection of each stormwater outfall regardless of
representative outfall status and shall be performed as specified in Table 4, during the analytical
monitoring event. [If analytical monitoring is not required, the permittee still must conduct semi-
annual qualitative monitoring.] Qualitative monitoring is for the purpose of evaluating the
effectiveness of the Stormwater Pollution Prevention Plan (SPPP) and assessing new sources of
stormwater pollution.
In the event an atypical.condition is noted at a stormwater discharge outfall, the pertittee 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.
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Table 4_ Onalitative Monitorine Reuuirements
Discharge Characteristics
Frequencyt
Monitoring
Location2
Color
semi-annual
SDO
Odor
semi-annual
''SDO
Clarity
semi-annual
� �' SDO
Floating Solids
semi-annual
SDO
Suspended Solids /~\
<semi-annual
SDO
Foam
\.
\,semi-ahnual
SDO
Oil Sheen X� _
l semi-annual
SDO
Erosion or de osition at the outfall
-,/seini-annual
SDO
Other obvious indicators �-
semi-annual
SDO
of stormwater pollution
Footnotes:
I Measurement Frequency: Twice per year during a representative storm event, for each year until either another
permit is issued for this facility or until this permit is revoked or rescinded. If at the end of this permitting cycle
the permtttee has submitted the appropriate paperwork for a renewal permit before the submittal deadline, the
perttittee will be considered for a renewal application. The applicant must continue semi-annual monitoring until
the renewed permit is issued. See Table 2 for schedule of monitoring periods through the end of this permitting
cycle.
2 Monitoring Location: Qualitative monitoring shall be performed at each stormwater discharge outfall (SDO)
regardless of representative outfall status.
SECTION D: ON -SITE VEHICLE MAINTENANCE MONITORING REQUIREMENTS
Facilities which have any vehicle maintenance activity occurring on -site which uses more than 55
gallons of new motor oil per month when averaged over the calendar year shall perform
analytical monitoring as specified below in Table 5. This monitoring shall be performed at all
stormwater discharge outfalls which discharge stonmwater runoff from vehicle maintenance
areas, and in accordance with the schedule presented in Table 2 (Section B). All analytical
monitoring shall be performed during a representative storm event.
Par 11 Page 8 of 9

Permit No. NCS000373
Table 5. Analytical Monitoring Requirements for On -Site Vehicle Maintenance
Discharge Characteristics
Units
Measurement
Sample
Sample
Frc uenc t
Type2
Location3
H
standard
semi-annual
Grab
SDO
TPH
m g/1
semi-annual
Grab
SDO
EPA Method 1664 (SGT-HEM)
Total Suspended Solids
mg/1
semi-annual
Grab
SDO
Total Rainfall4
inches
semi-annual
Rain gauge
---
New Motor Oil Usage d
gallons/month
semi-annual r
Estimate
Footnotes:
I Measurement Frequency: Twice per year during a representative stom event; for each year until either another
permit is issued for this facility or until this permit is revoked or iescind4. If at the end of this permitting cycle
the permittee has submitted the appropriate paperwork for a renewal permit before the submittal deadline, the
permittee will be considered for a renewal application. The applicant must continue semi-annual monitoring until
the renewed permit is issued. See Table 2 for schedule of moaitoring.periods through the end of this permitting
cycle.
2 If the stormwater runoff is controlled by a stormwater detention pond a grab sample of the discharge from the
pond shall be collected within the first 30 minutes of discharge from the pond.
x
3 Sample Location: Samples shall be collected at each stormwater discharge outfall (SDO) that discharges
stormwater runoff from area(s) whcr: vehicle maintenance activities occur.
4 For each sampled representative storm event the total precipitation must be recorded. An on -site or local rain
gauge reading must be recorded.
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). Exceedences of benchmark values require the
permittee to increase monitoring, increase management actions, increase record keeping, and/or
install stormwater Best Management Practices (BMPs), as provided in Part II Section B.
Table 6.
Benchmark Values for Vehicle Maintenance Analytical Monitoring
Discharge Characteristics
Units
Benchmark
PH
standard
6-9
TPH
[EPA Method 1664 (SGT-HEM)]
mg/L
15
Total Suspended Solids
mg/L
100
Part 11 Page 9 of 9

Permit No. NCS000373
PART III STANDARD CONDITIONS FOR NPDES STORiNIWATER INDIVIDUAL. PERMITS
SECTION A: COMPLIANCE AND LIABILITY
Compliance Schedule
The permittee shall comply with Limitations and Controls specified for storrnwater 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 thereafter on an annual basis. Secondary containti;ent, as specified in Pan 11,
Section A, Paragraph 2(b) of this permit, shall be accomplished within,12 months of the effective dale of
the initial permit issuance.
i_
n
New Facilities applying for coverage for the first time and existing facilities previously permitted and
applying for renewal under this permit The SlomtwalerTollution Prevention Plan shall be developed and
implemented prior to the beginning of discharges from the. operation of the industrial activity and be
updated thereafter on an annual basis. Secondary containment, as specified in Part 11, Section A, Paragraph
2(b) of this permit shall be accomplished prior to the beginning of discharges from the operation of the
industrial activity.
/ 61
m 2. Duty to Copl11 y 1 (�_
t^ < V i
The per nittee must comply with all conditions of this individual permit. Any permit noncompliance
constitutes a violation of the Clean Water Actand is grounds for enforcement action; for permit
termination, revocation and reissuan`ce, or modification; or denial of a permit upon'renewal application.
a. The permittee shall comply with standards or prohibitions established under section 307(a) of the
Clean Water Act for toxic pollutants within the time provided in the regulations that establish these
standards or prohibitions, even if the permit has not yet been modified to incorporate the
requirement.
b. The Clean Water Act provides that any person who violates a permit condition is subject to a civil
penalty not to exceed $25,000 per day for each violation. Any person who negligently violates any
permit condition is subject to criminal penalties of $2,500 to 25,000 per day of violation, or
imprisonment for not more than 1 year, or both. Any person who knowingly violates permit
conditions is subject to criminal penalties of $5,000 to $50,000 per day of violation, or
imprisonment for not more than 3 years, or both. Also, any person who violates a permit condition
may be assessed an administrative penalty not to exceed $10,000 per violation with the maximum
amount not to exceed $125,000. [Ref: Section 309 of the Federal Act 33 USC 1319 and 40 CFR
122.41(a).]
C. Under state law, a daily civil penalty of not more than ten thousand dollars ($10,000) per violation
may be assessed against any person who violates or fails to act in accordance with the terms,
conditions, or requirements of a permit. [Ref: NC General Statutes 143-215.6A].
d. Any person may be assessed an administrative penalty by the Director for violating section 301,
302, 306, 307, 308, 318 or 405 of the Act, or any permit condition or limitation implementing any
of such sections in a pennit issued under section 402 of the Act. Administrative penalties for Class
1 violations are not to exceed $10,000 per violation, with the maximum amount of any Class I
penalty assessed not to exceed $25,000. Penalties for Class II violations are not to exceed
Part III Page 1 of 8

Permit No. NCS000373
$10,000 per day for each day during which the violation continues, with the maximum amount of
any Class 11 penalty not to exceed $125,000.
3. Duty to Mitigate
The permittee shall take all reasonable steps to minimize or prevent any discharge in violation of this
individual permit which has a reasonable likelihood of adversely affecting human health or the environment.
4. Civil and Criminal Liabilit
Except as provided in Part III, Section C of this permit regarding bypassing of stormwater control facilities,
nothing in this individual permit shall be construed to relieve the permittee from any responsibilities,
liabilities, or penalties for noncompliance pursuant to NCGS 143-215.3 143-215.6A, 143-215.6B, 143-
215.6C or Section 309 of the Federal Act, 33 USC 1319. Further_nore, the permittee is responsible for
consequential damages, such as fish kills, even though the responsibility for effective compliance may be
temporarily suspended. i % 4C.
/ it,
5. Oil and Hazardous Substance Liability
Nothing in this individual permit shall be construed to preclude the' institution of any legal action or relieve
the permittee from any responsibilities, liabilities„or peoalties,tt which the permittee is or may be subject to
under NCGS 143-215.75 et seq. or Section 311of the'federal.Act, 33 USC 1321.
6. Property Rights
The issuance of this individual permit does.notconvey any property rights in either real or personal
property, or any exclusive privileges, nor does it authorize any injury to private property or any invasion of
personal rights, nor any infringemem.of Federal, State or local laws or regulations.
-
7. Severabilitv
The provisions of this individual permit are severable, and if any provision of this individual permit, or the
application of any provision of this individual permit to any circumstances, is held invalid, the application
of such provision to other circumstances, and the remainder of this individual permit, shall not be affected
thereby.
8. Duty to Provide Information
The permittee shall furnish to the Director, within a reasonable time, any information which the Director
may request to determine whether cause exists for modifying, revoking and reissuing, or terminating the
permit issued pursuant to this individual permit or to determine compliance with this individual permit. The
permittee shall also furnish to the Director upon request, copies of records required to be kept by this
individual permit.
9. Penalties for Tamoerine
The Clean Water Act provides that any person who falsifies, tampers with, or knowingly renders inaccurate,
any monitoring device or method required to be maintained under this individual permit shall, upon
conviction, be punished by a fine of not more than $10,000 per violation, or by imprisonment for not more
than two years per violation, or by both. If a conviction of a person is for a violation committed after a first
conviction of such person under this paragraph, punishment is a fine of not more that $20,000 per day of
violation, or by imprisonment of not more than 4 years, or both.
Part III Page 2 of 8

Permit No. NCS000373
10. Penalties for Falsification of Reports
The Clean Water Act provides that any person who knowingly makes any false statement, representation, or
certification in any record or other document submitted or required to be maintained under this individual
permit, including monitoring reports or reports of compliance or noncompliance shall, upon conviction, be
punished by a fine of not more than $10,000 per violation, or by imprisonment for not more than two years
per violation, or by both.
SECTION B: GENERAL CONDITIONS
Individual Permit Expiration
The pennittee is not authorized to discharge after the expiration
authorization to discharge beyond the expiration date, the permi
required by the agency authorized to issue permits no later, than
permittee that has not requested renewal at least 180 days prior'
have a permit after the expiration and has not requested renewal
subjected to enforcement procedures as provided in NCGS $14.
2. Transfers
This permit is not transferable to any
Director may require modification or
incorporate such other requirements
required to notify the Division in H
3. Signatory Requirements
All applications, reports,
a. All applications
date/In order to receive automatic
xee�shall submit forms and fees as are
180'days prior to the expiration date. Any
o expiration, or any permittee that does not
at leasbl80 days prior to expiration, will be
-215.36 and 33 USC 1251 et. seq.
[ after'notice to and approval by the Director. The
id reissuance of the permit to change the name and
essary under the Clean Water Act. The Permittee is
event the permitted facility is sold or closed. ,
submitted to the Director shall be signed and certified.
under this individual permit shall be signed as follows:
(1) In the case of a corporation: by a principal executive officer of at least the level of vice-
president, or his duly authorized representative, if such representative is responsible for
the overall operation of the facility from which the discharge described in the permit
application form originates;
(2) In the case of a partnership or limited partnership: by a general partner;
(3) In the case of a sole proprietorship: by the proprietor;
(4) In the case of a municipal, state, or other public entity: by a principal executive officer,
ranking elected official, or other duly authorized employee.
b. All reports required by the individual permit and other information requested by the Director shall
be signed by a person described above or by a duly authorized representative of that person. A
person is a duly authorized representative only if.
(1) The authorization is made in writing by a person described above;
(2) The authorization specified either an individual or a position having responsibility for the
overall operation of the regulated facility or activity, such as the position of plant
manager, operator of a well or well field, superintendent, a position of equivalent
Part III Page 3 of 8

Permit No. NCS000373
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 Director.
C. Any person signing a document under paragraphs a. or b. of this section shall make the following
certification:
"1 certify, under penalty of law, that this document and all attachments were prepared under my
direction or supervision in accordance with a system designed to assure that qualified personnel
properly gather and evaluate the information submitted. Based on my inquiry of the person or
persons who manage the system, or those persons directly responsible for gathering the
information, the information submitted is, to the best of my knowledge and belief, true, accurate,
and complete. 1 am aware that there are significant penalties for submitting false information,
including the possibility of fines and imprisonment for knowing violations."
4.
The issuance of this individual permit does not prohibit the Dire6tor from reopening and modifying the
individual permit, revoking and reissuing the individual permor it, terminating the individual permit as
allowed by the laws, rules, and regulations contained n Title 40, Code of Federal Regulations, Parts 122
and 123; Title 15A of the North Carolina Adininistrative Code, .Subchapter2H .0100; and North Carolina
General Statute 143-215.1 et al. f l
n ,
5, Permit Actions �' _ ``•
The permit may be modified,, revoked and reissued, or terminated for cause. The notification of planned
.. - changes or ane ticipated noncompliance dos not stay any individual pennit condition. .
�i
SECTION C: OPERATION AND MAINTENANCE OF POLLUTION CONTROLS
1. Proper Operation and Maintenance
The permittee shall at all times properly operate and maintain all facilities and systems of treatment and
control (and related appurtenances) which are installed or used by the permittee to achieve compliance with
the conditions of this individual permit. Proper operation and maintenance also includes adequate
laboratory controls and appropriate quality assurance procedures. This provision requires the operation of
back-up or auxiliary facilities or similar systems which are installed by a permittee only when the operation
is necessary to achieve compliance with the conditions of this individual permit.
Need to Halt or Reduce Not a Defense
It shall not be a defense for a pennittee in an enforcement action that it would have been necessary to halt or
reduce the permitted activity in order to maintain compliance with the condition of this individual permit.
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
PartIll Page 4 of 8

t
Permit No. NCS000373
b. There were no feasible alternatives to the bypass, such as the use of auxiliary control facilities,
retention of stormwater or maintenance during normal periods of equipment downtime or dry
weather. This condition is not satisfied if adequate backup controls should have been installed in
the exercise of reasonable engineering judgment to prevent a bypass which occurred during normal
periods of equipment downtime or preventive maintenance; and
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 Sampling
C
Samples collected and measurements taken, as required herein; shall be characteristic of the volume and
nature of the permitted discharge. Analytical sampling shall be performed during a representative storm
event. Samples shall be taken on a day and time that is characteristic of the discharge. All samples shall be
taken before the discharge joins or is diluted by any other waste stream, body of water, or substance.
Monitoring points as specified in this permit shall not be changed without notification to and approval of
the Director,
Recording Results l .
For each measurement, sample; inspection or maintenance activity performed or collected pursuant to the
requirements of this individual permit the pertnittee shall record the following information:
!'
a. The date, exact place, and time`, o%f sampling, measurements, inspection nr maintenance activity;
/j
b. The individual(s) who performed the sampling, measurements, inspection or maintenance activity;
C. The date(s) analyses were performed;
d. The individual(s) who performed the analyses;
e. The analytical techniques or methods used; and
f. The results of such analyses.
3. Flow Measurements
Where required, appropriate flow measurement devices and methods consistent with accepted scientific
practices shall be selected and used to ensure the accuracy and reliability of measurements of the volume of
monitored discharges.
4. 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 CPR 136.
PartIll Page 5 of 8

Permit No. NCS000373
To meet the intent of the monitoring required by this individual permit, all test procedures must produce
minimum detection and reporting levels and all data generated must be reported down to the minimum
detection or lower reporting level of the procedure. - ..
5. Representative Outfall
If a facility has multiple discharge locations with substantially identical stormwater discharges that are
required to be sampled, the permittee may petition the Director for representative outfall status. If it is
established that the stormwater discharges are substantially identical and the permittee is granted
representative outfall stars, then sampling requirements may be performed at a reduced number of outfalls. 3.
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 on -site. The
permittee shall retain records of all monitoring information, including. all calibration and maintenance
records and all original strip chart recordings for continuous monitoring instrumentation, and copies of all
reports required by this individual permit for a period of at least 5 years from the date of the sample,
measurement, report or application. This period may beextended by request of the Director at any time.
J �
' 7. Inspection and Entry
'The permittee shall allow the Director, or an authorized representative (including an authorized contractor
acting as a representative of the Director),7or in the case of a facility which discharges through a municipal
separate storm sewer systenm„ah authorized representative of a municipal operator or the separate storm
sewer system receiving the discharge, upon the, presentation of credentials and other documents as may be
required by law, to;
a. Enter upon the permittee's premises where a regulated facility or activity is located or conducted,
or where records must be kept under the conditions of this individual permit;
b. Have access to and copy, at reasonable times, any records that must be kept under the conditions of
this individual permit;
C. Inspect at reasonable times any facilities, equipment (including monitoring and control equipment),
practices, or operations regulated or required under this individual permit; and
d. Sample or monitor at reasonable times, for the purposes of assuring individual permit compliance
or as otherwise authorized by the Clean Water Act, any substances or parameters at any location.
SECTION E: REPORTING REQUIREMENTS
Discharge Monitoring Reports
Samples analyzed in accordance with the terms of this permit shall be submitted to the Division on
Discharge Monitoring Report forms provided by the Director. Submittals shall be delivered to the Division
no later than 30 days from the date the facility receives the sampling results from the laboratory.
The pemmittee shall submit an Annual Summary Data Monitoring Report to the appropriate DWQ Regional
Office in February of each year. The submittal shall be on forms supplied by the Division.
PartIII Page 6 of 8

Permit No. NCS000373
l'1
9
6.
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 six-month sampling period, giving all
required information and indicating "NO FLOW" as per NCAC T15A 02B .0506.
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. Visual
monitoring results should not be submitted to the Division, except upon D WQ's specific requirement to do
so.
Submittingports
Two signed copies of Discharge Monitoring Reports (DMRs) shall be submitted to:
Central Files
Division of Water Quality
1617 Mail Service Center
Raleigh, North Carolin ` 699-1617\
In addition, a separate signed Annual Summary DMR copy hall be submitted to the local DWQ Regional
Office (RO) by March 1 of each year.
Addresses for each RO and the counties
on site. Visual monitoring results should not be
specifically requested by DW�Q.\ '•
`\
Availability of Reports
O can be found here:
he permittee shall retain the completed originals
to the Regional Offices or Central Files unless
Except for data determinedto be confidential under NCGS 143-215.3(a)(2) or Section 308 of the Federal
Act, 33 USC 1318, all reports prepared in accordance with the terms shall be available for public inspection
at the offices of the Division of Water Quality. As required by the Act, analytical data shall not be
considered confidential. Knowingly making any false statement on any such report may result in the
imposition of criminal penalties as provided for in NCGS 143-215.6B or in Section 309 of the Federal Act
Non-Stormwater Discharges
If the storm event monitored in accordance with this Individual Permit coincides with a non-stormwater
discharge, the permittee shall separately monitor all parameters as requiredunder the non-stormwater
discharge permit and provide this information with the stormwater discharge monitoring report.
Planned Changes
The permittee shall give notice to the Director as soon as possible of any planned changes at the permitted
facility which could significantly alter the nature or quantity of pollutants discharged. This notification
requirement includes pollutants which are not specifically listed in the Individual Permit or subject to
notification requirements under 40 CFR Part 122.42 (a).
Anticipated Noncompliance
The permittee shall give notice to the Director as soon as possible of any planned changes at the permitted
facility which may result in noncompliance with the Individual Permit requirements.
PartIll Page 7 of 8

Permit No. NCS000373
'1
IM
The permittee shall report to the local DWQ Regional Office, within 24 hours, all significant spills as
defined in Part VI 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.
Bypass
a. Anticipated bypass. If the permittee knows in advance of the need for a bypass, it shall submit
prior notice, if possible at least ten days before the date of the bypass; including an evaluation of
the anticipated quality and affect of the bypass.
b. _ Unanticipated bypass. The permittee shall submit notice within 24 hours of becoming aware of an
unanticipated bypass.
),
Twenty-four Hour Reportine
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 become0aware of the circumstances.
,file written submission shall contain a description ofthe noncompliance, and its causes; the period of
noncompliance, including exact dates and times,.and'if the noncompliance has not been corrected, the
anticipated time compliance is expected to continue; and steps taken or planned to reduce, eliminate, and
prevent reoccurrence of the noncompliance.
'file Director may waive the written report on a case -by -case basis if the oral report has been received
within 24 hours.
Other Noncompliance
The permittee shall report all instances of noncompliance not reported under 24 hour reporting at the time
monitoring reports are submitted.
Other Information
Where the permittee becomes aware that it failed to submit any relevant facts in a Notice of Intent to be
covered under this Individual Permit or in any report to the Director, it shall promptly submit such facts or
information.
Part III Page 8 of 8

NCS000373
PART IV LIMITATIONS REOPENER
This individual permit shall be modified or alternatively, revoked and reissued, to comply with any applicable
effluent guideline or water quality standard issued or approved under provisions of the Clean Water Act, if the
effluent guideline or water quality standard so issued or approved: .
a. Contains different conditions or is otherwise more stringent than any effluent limitation in the individual
permit; or ..
b. Controls any pollutant not limited in the individual permit
t,
.The individual permit as modified or reissued under this paragrapl`sludl also cc other requirements in the
% �/ Act then applicable. /,\ \— If -
PART V ADMINISTERING AND COMPLIANCE MONITORING FEE
The permittee must pay the administering and compliance monitbring fee within 30 (thirty) days after being billed by
the Division. Failure to pay the fee in timely manner in accordance with 15A NCAC 2H .0105(b)(4) may cause this
Division to initiate action to revoke the.lndividual Permit.
\ \ \ >
>
PART.VI DEFINITIONS
1. Act -
See Clean Water Act.
2. Allowable Non-Stormwater Discharges
This permit regulates stonnwater discharges. Non-stormwater discharges which shall be allowed in the
stornwater conveyance system are: .
(a) All other discharges that are authorized by a non-stormwater NPDES permit.
(b) Uncontaminated groundwater, foundation drains, air -conditioner condensate without added
chemicals, springs, discharges of uncontaminated potable water, waterline and fire hydrant
flushings, water from footing drains, flows from riparian habitats and wetlands.
(c) Discharges resulting from fire -fighting or fire -fighting training.
3. Best Management Practices (BMPs)
Measures or practices used to reduce the amount of pollution entering surface waters. BMPs may take the
form of a process, activity, or physical structure. More information on BMPs can be found at:
http://cfpub.epi.gov/npdes/storniwater/meiiuofbmps/index.cfm.
4. 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.
5. Bulk Storage of Liquid Products
Liquid raw materials, manufactured products, waste materials or by-products with a single above ground
storage container having a capacity of greater than 660 gallons or with multiple above ground storage
containers located in close proximity to each other having a total combined storage capacity of greater than
1,320 gallons.
Parts IV, V and VI Page I of

Permit No. NCS000373
6. Certificate of Coverage
The Certificate of Coverage (COC) is the cover sheet which accompanies the Individual 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.
7. Clean Water Act
The Federal Water Pollution Control Act, also known as the Clem Water Act (CWA), as amended, 33 USC
1251, et. seq. t,
8. Division orDWO
The Division of Water Quality, Department of Environment and NatA;al Resources.
9. Director
The Director of the Division of Water Quality, the permit issuing authority.
10. EMC
The North Carolina Environmental Management Commission.
11. 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.
12. Hazardous Substance
Any substance designated under.40 CFR Part,116 pursuant to Section 311 of the Clean Water Act.
13. Landfill
A disposal facility or part of a disposal facility where waste is placed in or on land and which is not a land
treatment facility, a surface impoundment, an injection well, a hazardous waste long-term storage facility or
a surface storage facility. `-
14. Municipal Separate Storm Sewer System
A stormwater collection system within an incorporated area of local Belt=government such as a city or town.
15. 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)
16. 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 an Individual Permit.
17. Permittee
The owner or operator issued a certificate of coverage pursuant to this Individual Permit.
Part VI Page 2 of4 Pages

Permit No. NCS000373
18. 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.
19. Representative Storm Event
A storm event that measures greater than 0.1 inches of rainfall. The time between this storm event and the previous
storm event measuring greater than 0.1 inches must be at least 72 hours. A single storm event may have a period of
no precipitation of up to 10 hours:' For example, if it rains but stops before producing any collectable discharge, a
,sample may be collected if the next rain producing a discharge begins within 10 hours. t,
20. 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.
21. Secondary Containment
Spill containment for the contents of the single largest tank within the containment structure plus sufficient
freeboard to allow for the 25-year, 24-hour storm event: \
22. Section 313 Water Priority Chemical
A chemical or chemical category which:
a. . Is listed in 40 CFR 372.65 purs
Reauthorization Act
to -Know Act of 198�
b. Is present at or abov
requirements; and
C. Meets at least one of
ranfto Seciion 313 of Tide III of the Superfund Amendments and
1986, also titled the Emergency Planning and Community Right-
levvels at a facility subject to SARA title III, Section 313 reporting
V
itig criteria:
(1) Is listed in appendix D of 40 CFR part 122 on Table 11 (organic priority pollutants), Table
III (certain metals,,'6yanides, and phenols) or Table IV (certain toxic pollutants and
hazardous substances);
(2) Is listed'as a hazardous substance pursuant to section 311(b)(2)(A) of the CWA at 40
CFR 116.4; or
(3) Is a pollutant for which EPA has published acute or chronic water quality criteria.
23. Severe Prooertv Damage
Means substantial physical damage to property, damage to the control facilities which causes them to
become inoperable, or substantial and permanent loss of natural resources which can reasonably be
expected to occur in the absence of a bypass. Severe property damage does not mean economic loss caused
by delays in production.
24. Significant Materials
Includes, but is not limited to: raw materials; fuels; materials such as solvents, detergents, and plastic
pellets; finished materials such as metallic products; raw materials used in food processing or production;
hazardous substances designated under section 101(14) of CERCLA; any chemical the facility is required to
report pursuant to section 313 of Title III of SARA; fertilizers; pesticides; and waste products such as ashes,
slag and sludge that have the potential to be released with stormwater discharges.
25. Significant Spills
Includes, but is not limited to: releases of oil or hazardous substances in excess of reportable quantities
under section 311 of the Clean Water Act (Ref: 40 CFR 110.10 and CFR 117.21) or section 102 of
CERCLA (Ref: 40 CFR 302.4).
Part VI Page 3 of4 Pages

Permit No. NCS000373
26. 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.
27. Stormwater Runoff
The Flow of water which results from precipitation and which occurs immediately following rainfall or as a
result of snowmelt. ,
28. Stormwater Associated with Industrial Activit
The discharge from any point source which is used for collecting and conveying stormwater and which is
directly related to manufactm ing, 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 6exeluded from the NPDES program.
29. Stormwater Pollution Prevention Plan , ,r\ �� ,°
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.`.,
30. Total Maximum Daily Load (TMDL) -
a
TMDLs are written plans for attaining and maintaining,water quality standards, in all seasons, for a specific
water body and pollutant. (A list of approved TMDLs for the state of North Carolina can be found at
http://l12o.enr.state.ne.us/tmdl/)
31. Toxic Pollutant �\
Any pollutant listed as toxic under _Section 30�7(a)(I) of the Clean Water Act.
32. Vehicle Maintenance Activitffy
Vehicle rehabilitation, mechanical repairs, painting, fueling, lubrication, vehicle cleaning operations, or
airport deicing operations`'!-��� -�
33. Visible Sedimentation
Solid particulate matter, both mineral and organic, that has been or is being transported by water, air,
gravity, or ice from its site of origin which can be seen with the unaided eye.
34. 25-year, 24 hour storm event '
The maximum 24-hour precipitation event expected to be equaled or exceeded, on the average, once in 25
years.
PartVI Page 4 of4 Pages

:r
NCDENR
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Beverly Eaves Perdue Coleen H. Sullins Dee Freeman
Governor Director Secretary
May 11, 2010
Individual NPDES Stormwater Permit Renewal Transmittal Cover Page
To: Mooresville Regional Office
Subject: NPDES Stormwater Permit No. NCS000373
Michelin Aircraft Tire Company, a Division of Michelin North America, Inc.
Norwood, NC (Stanly County)
Attachment Description
®
Staff Report
®
Draft Permit
®
Renewal Application
Please provide comments on the facility, draft permit, and staff report and sign/return
if acceptable.
Return to Brian Lowther at the Central Office by June 11, 2010.
Brian Lowther
Division of Water Quality
Stormwater Permitting Unit
1617 Mail Service Center
Raleigh, NC 27699-1617
ECE
JUN - 1 2010
Wellands and Stormwater Branch
1617 Mail Service Center, Raleigh, North Carolina 27699-1617
Location: 512 N. Salisbury St. Raleigh, North Carolina 27604
Phone: [phone] FAX: [phone] Customer Service: 1-877-623-6748
Internet: w .ncwalerquality.org
An Equal Opportunity V Affirmative Action Employer
MAY 1 3 2010
NorthCarolina
Naturally

'T
Perm �ng Structure
• Individual Pe its /
• General Permi
Na=nal
Permits
Reeneral Permits
• Corps Decides Permit Type
0

,c
14CS000373
4 � iA
NCDENR
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Beverly Eaves Perdue Coleen K Sullins
Governor Director
STAFF REVIEW AND EVALUATION
NPDES Stormwater Permit
Dee Freeman
Secretary
Facility Name:
Michelin Aircraft Tire Company, a Division of Michelin North America, Inc.
NPDES Permit Number:
NCS000373
Facility Location:
40589 S Stanly School Rd., Norwood, NC (Stanly County)
Type of Activity:
Industrial — Tires and Inner Tubes
SIC Code:
3011
Receiving Streams:
See Figure I
River Basin:
Yadkin -Pee Dee River Basin, Sub -basin 03-07-08
Stream Classification:
WS-Iv
Proposed Permit Requirements:
See attached draft permit.
Monitoring Data:
See Table 1
Response Requested by (Date):
6.1\.I
Central Office Staff Contact:
Return to: Brian Lowther, [phone]
Special Issues:
Issue
Rating Scale: 1 eas to 10 hard
Com liance history
3
Benchmark exceedance
6
Location (TMDL, T&E
species, etc
4
Other Challenges:
3
Difficulty Rating;
16/40
Special Issues Explanation:
• Beginning in the second half of 2010, the company will add aviation tire retreading to its current
aviation new tire manufacturing at the site.
Description of Onsite Activities:
Michelin Aircraft Tire supplies bias tires, radial tires, and tubes for aviation clients around the world.
Documents Reviewed:
• NPDES Stormwater Permit Application Materials
• National Heritage Program (NHP) Threatened and Endangered Species Database
• SPU File
Page 1 of 8

NCS000373 1
• Central Files
• EPA Sector -Specific Permit, 2008
• 303(d) List, 2010 draft, 2008 final
• 2008 (draft) Yadkin Pee -Dee Basinwide Plan
History:
• September.9, 1999: Date permit first issued. Analytical monitoring requirements include TSS, COD and pH
with cut off concentrations.
• May 23, 2005: Date permit re -issued. Name was Michelin Aircraft Tire Company, LLC. Analytical
monitoring requirements include COD, Oil and Grease and pH with benchmarks.
• December 20, 2005: Letter submitted to DWQ about stormwater samples. One sample was missing and
redone and another was above the benchmark for COD at 160 mg/l. The letter describes that they think the
source is from a 24" drainage pipe that is located across from a local cattle farm and pond area. The pond's
dike has breached and the pond empties into the storm sewer during all significant storms.
• November 7, 2008: Name change to MICHELIN AIRCRAFT TIRE COMPANY A DIVISION OF
MICHELIN NORTH AMERICA, INC.
• March 16, 2010: Date permittee submitted renewal application
Page 2 of 8

NCS000373
Discussions with permittee: Lisa Myers, 704-474-7760, 3/12/10
Have there been any industrial changes since the pervious permit? No changes currently. Facility in Kansas is
closing and the retreading processes will be moved to this site. Lisa will send in updated site map.
Michelin to expand Stanly County aircraft tire plant- Beginning in the second half of 2010, the company will
add aviation tire retreading to its current aviation new fire manufacturing at the site. (April 12, 2010)
http://localtechwire.corn/business/local tech wire/newslblogpos117404679/
2. What is the company name? Michelin Aircraft Tire Company, a Division of Michelin North America, Inc.
3. Do you have onsite vehicle maintenance? No
Page 7 of 8

ffC1111I11<i8'.
Recommendations: Based on the documents reviewed, the application information submitted on March 16, 2010
sufficient to issue an Individual Stonmwater Permit.
Prepared by (Signature) et'- Date S 7. la
Stormwater Permitting Unit Superviso 4 Date
ffoor BBradley B nneli
Concurrence by Regional Office Date
(fC� a `77� Date S yG )
RO Water Quality Supervisor 1 '/e— Date
Regional Office Staff Comments �(attachh additionalpages as necessary)
65
�i G dcGc's�Cc�i
( �eeyGs (70 Ike- ��P/Gt„w� GV �C �CGt/I4t� /rl�fi/U ��E/uui�Ge-
c r /tli1'C�[ t/W/ i �/vC GLurec/uk�
CLca w ,K 0,l f V(v s1,aoe `6e
Page 8 of 8

NCS000373
Table 1: Analytical Monitoring
Required
Sampling
Ran a(MG
Sample
Date
Total
Flow
D
Precipitation
(in)
Duration
(hours)
TSS
COD
pH
Benchmark:
100 m /L
Benchmark:
120 m /L
Benchmark:
6-9 SU
Outfall 1
9/7/2004
0.0069
0.4
0.33
ND
ND
6.5
NA
11/22/2005
0.0026
0.45
1.00
ND
25
7
6/14/2006
0.0011
0.3
1.50
ND
49
6.6
10/27/2006
0.0013
0.7
3.00
ND
ND
�5%MW
6/12/2007
0.0014
0.5
2.00
ND
33
10/24/2007
0.0015
0.4
1.50
ND
7
5/28/2008
0.0019
0.65
2.00
ND
12/11/2008
0.0034
0.9
1.50
ND
tND
6.9
7/9/2009
0.0024
0.3
0.70
ND
1/21/2010
0.0065
0.8
0.70
ND
Outfall 2
9/7/2004
0.0035
0.4
0.33
16
28
6.2
NA
11/22/2005
0.0013
0.45
1.00
ND
6.9
6/14/2006
0.0006
0.3
1.50
ND
56
6.8
10/27/2006
0.0007
0.7
3.00
ND
ND
6.8
6/12/2007
0.0007
0.5
2.00
ND
Q
6.5
10/24/2007
0.001
0.4
1.50
ND
38
5.8
5/28/2008
0.001
0.65
2.00
ND
64.3
6
12/11/2008
0.0018
0.9
1.50
ND
26
6.6
7/9/2009
0.0013
0.3
0.70
ND
27.5
6.8
1/21/2010
0.0033
0.8
0.70
ND
ND
Over Current Benchmark
Data Not Collected
Page 5 of 8

NCS000373
Revised Permit Recommendations: Analytical Monitoring:
1. Maintaining monitoring for COD and pH to the analytical monitoring requirements. Replacing Oil and Grease
with TPH.
2. All analytical monitoring remains at semi-annually during a representative storm event as defined in Part II
Section B. The permittee must also document the total precipitation for each event. If no discharge occurs
during the sampling period, the permittee must submit a monitoring report indicating "No Flow" within 30 days
of the end of the six-month sampling period. Additionally, samples must be taken a minimum of 60 days apart,
as specified in Table 2.
3. 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.
4. The permittee is required to collect all of the analytical and qualitative monitoring samples during representative
storm events as defined in Part II Section B. Qualitative monitoring is required regardless of representative
outfall status.
5. The permittee is responsible for all monitoring until the renewal permit is issued. See Footnote I of Tables 1, 4,
and 5.
6. Annual summary DMR will be due to RO in March of every year.
Other Proposed Changes to the Previous Permit:
I . Additional guidance is provided about the Site Plan requirements. The site map must now identify if the
receiving stream is impaired and if it has a TMDL established. It must also describe potential pollutants in each
outfall. The map requirements are stated more explicitly. And, the site plan must contain a list of significant
spills that have occurred in the past three years and also must certify that the outfalls have been inspected to
ensure that they do not contain non-stormwater discharges. Additional information is provided in Part II Section
A.
2. Additional requirements for the Stonmwater Management Plan have been specified in Part Q Section A. More
details regarding secondary containment are provided.
3. Additional requirements for the Stormwater Pollution Prevention Plan have been specified in Part II Section A.
The plan must also be updated annually to include a list of significant spills and to certify that the outfalls do not
contain non-stormwater discharges.
4. The facility must now implement a semi-annual Facility Inspection Program of the site's stormwater
management controls as specified in Part II Section A.
5. Information regarding the No Exposure Exclusion has been added to this draft 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 Exposure Exclusion from NPDES stormwater discharge permit requirements. Additional information
is provided in Part I Section A.
Page 6 of 8

NCS000373
NCS000373
W S'Cale 1.24,000
Figure 1: Map of Facility
Michelin Aircraft Tire Company A Division
of Michelin N. America, Inc.
Lab tide: 350 14' 00" N
Longitude: 800 09' 32" W
County: Staily
Recaving Stream: Cedar Creek (Ulj
Stream (lass: WS-IV
Sub -basin: 03-07-08 (Yadkin -Pee Dee River Basin)
s•,. 1
S....,p...
P
.. *tiNE,
Facility Location
Page 3 of 8

NCS000373
Central Office Review Summary:
1. Owner's Other Permits: None in BIMS. Air Quality Permit No. 05835T14
2. General Observations:
• Lisa Myers is the new permit contact. 704-474-7760 and lisa..iones(a)us.mail.com\
• Outfall 002 description was changed to "confluence of downspouts and storm sewers." The outfall
was a pond of <300 gallons but it was filled in because it was a breeding ground for nuisance insects.
(Based on letter dated 7/13/06)
3. Impairment: Pee Dee River, downstream of Cedar Creek, is on the 2010 draft 303d list and is impaired for low
pH. The Lake Tilley -Pee Dee River subbasin plan of the 2008 Yadkin Pee Dee Basinwide Plan had no specific
recommendations for Cedar Creek.
4. Threatened and Endangered: Based on the Natural Heritage Virtual Workroom there are no federal protected
species within two miles of the facility.
5. Location: Facility does not drain to impaired waters, but this segment of Cedar Creek is designated as Water
Supply waters.
6. Industrial Changes Since Previous Permit: None listed in renewal application.
7. Analytical Monitoring Notes: See Table 1 below. Sample values were below the pI-I benchmark (6 SU) five
times for Outfall 1 and one time for Outfall 2. One sample values for COD was above the benchmark (120mg/1)
at 130 mg/l. A letter from the permittee describes that they think the source of the COD is from a 24" drainage
pipe that drains a local cattle farm and connects directly to the storm sewer.
The previous staff report (B. Georgoulias, Permit Reviewer) indicates that earlier monitoring requirements were
based on EPA Multi Sector Permit for this industry. In Sector Y (Rubber, Miscellaneous Plastic Products, and
Miscellaneous Manufacturing Industries) of the current EPA MSGP, it recommends monitoring for Total Zinc.
Total Zinc was not included in the previous renewal, even though it was a pollutant of concern, for this industry
because the site does not store or use zinc oxide (based on the company's 1999 submittal letter). Instead, the
facility uses rubber stock mixed at other facilities. The letter asserted that ZnO becomes encapsulated in the
rubber matrix and is unavailable as a stormwater containment.
The previous permit required monitoring for COD, Oil & Grease (O&G) and pH. TSS was removed during the
last renewal. Permittee never monitored for Oil & Grease. They continued to monitor for TSS instead of
O&G. Reviewer recommends retaining monitoring for COD and pH. Reviewer also recommends
monitoring for Total Petroleum Hydrocarbons (TPH) instead of Oil and Grease. Oil & Grease was originally
added to the permit because of fueling and cleaning activities at the site. Michelin stores and/or transfers fuel
oil, diesel fuel, solvents, and lubricants at this site (From 2005 Staff Report). O&G has been used at sites
handling, storage or use of petroleum products. O&G, by definition, is composed of fatty matter from animal
and vegetable sources and hydrocarbons of petroleum origin. TPI-I is a better measure for petroleum
hydrocarbons. Therefore TPH will be used instead of O&G because the facility is only expected to discharge
petroleum based hydrocarbons. Method 1664(SGT-HEM) is specified.
8. Qualitative Monitoring Notes: No problems noted. All of the findings included were checked "OK".
From Central Files: 10/27/06 Red —light brown color noted.
Page 4 of 8

kw
j=_1�
MICHELIm
«][�111t
To: Stormwater Permitting Unit
Attn: Brian Lowther
1617 Mail Service Center
Raleigh, NC 27699-1617
From: Michelin Aircraft Tire Company, a Division of Michelin No c erica, Inc.
NPDES Permit # NCS000373
40589 S. Stanly School Rd.
Norwood, NC 28128
Stanly County
Re: NPDES Permit #NCS000373 Renewal
Mr. Lowther,
Please accept the enclosed permit renewal application for Michelin Aircraft Tire
Company's NPDES permit #NCS000373. I believe that all pertinent and supplemental
information has been included according to the instruction letter sent out by the Division
of Water Quality.
MATC has been operation according to its storm water permit throughout its duration.
Due to the capricious and arbitrary nature of the weather, however, MATC was not able
to perform all of its qualitative sampling during the "windows" specified in our original
permit (Apr. -June and Sept. -Nov.). When weather condition did not permit our sampling
within the specified windows, the fast storm event occurring afterwards was used. I was
pleased to see the elimination of the sampling "windows" and the implementation of
sampling anytime during the year as long as it meets the new criteria for a representative
storm event. That will make sampling much easier.
If you have any questions, comments or suggestions for improving the format of the
information supplied, please contact me. If this renewal package is deficient in anyway,
please contact me immediately so that I may have the opporhu . resubmit.
nsaae�G
o
Environmental Coordinator
704-474-7760 (office)
704-474-7753 (fax)
704-244-6673 (mobile)
[e-mail]
Michelin Aircraft Tire Company, Telephone: [phone]
a division of Michelin North America Inc. Facsimile: [phone]
One Parkway South www.airmichelin.com
Greenville, South Carolina 29615 USA

pf �^iPq Permit Coverage
Renewal Application Form
National Pollutant Discharge Elimination System Permit Number
Stormwater Discharge Permit NC5000373
The following is the information currently in our database for your facility. Please review this information carefully and
make all corrections/additions as necessary in the space provided to the right of the current information.
Owner Affiliation Information *Reissued Permit will be mailed to the owner address
Owner/ Organization Name: Michelin Aircraft Tire Company A Division
of Michelin N America Inc
Owner Contact: Bill Van Someren
Mailing Address: PO Box 19001
Greenville, SC 29615
Phone Number: [phone]
Fax Number:
E-mail address:
Facility/Permit Contact Information
Facility Name: Michelin Aircraft Tire Company, A Division
of Michelin N. America, Inc.
Facility Physical Address: 40589 S Stanly Schools S
Norwood, NC 28128
Facility Contact: Do444atL4ews
Mailing Address: 40589 S Stanly School
Norwood,NC28128
Phone Number: 04/- ?O17146
-
Fax Number:
E-mail address: %sa.� n[SL�US.mai�. Corn
Discharge Information
Receiving Stream Cedar Creek _
Stream Class: WS-IV
Basin: , Yadkin River Basin
Sub -Basin: 03-07-08
Number of Outfalls: a
Impaired Waters/TMDL
Does this facility discharge to waters listed as impaired or waters with a finalized TMDL? O Yes ❑ No C3 Don't Know
( for information on these waters refer to http.y/h2o.enr.state.nc.us/su/lmpaired Waters TMDL J
CERTIFICATION
I certify that I am familiar with the information contained in the application and that to the best of my knowledge and
belief such information is true, complete and accurate.
Signature
Please return this completed renewal application form to: Stormwater Permitting Unit
Attn: Brian Lowther
1617 Mail Service Center
Raleigh, North Carolina 27699-1617

HCDENR
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Beverly Eaves Perdue Coleen H. Sullins
Governor Director
December 7, 2009
Mr. Bill Van Someren
Michelin Aircraft Tire Company A Division of Michelin N America Inc
PO Box 19001
Greenville, SC 29615
Dee Freeman
Secretary
Subject: NPDES Stormwater Permit Coverage Renewal
Michelin Aircraft Tire Company, A Division of
Michelin N. America, Inc.
Permit Number NCS000373
_ . Stanly County
DearPermittee:
Your facility is currently covered for stormwater discharge under NPDES Permit NCS000373. This
permit expires on.May 31, 2010,_To assure consideration for continued coverage under your individual"'
permit, you must apply to the Division of Water Quality (DWQ) for renewal of your permit. Enclosed
you will find an individual permit Renewal Application Form, Supplemental Information request, and
Stormwater Pollution Prevention Plan Certification for your facility.
Filing the application form along with the requested supplemental information will constitute your
applicationfor renewalbf tliis permit. Until your permit renewal is completed and you receive a new
'permit,•please continue to comply with all conditions and monitoring requirements in your expired - • .<
NPDES stormwater permit. ,.
The application and supplement must be completed and -returned to DWQ by March 1. 2010. Failure to'-"
request renewal within this time period will result in delay of -your permit renewal and may result in a —_,...-
civil assessment. Discharge of stormwater from your facility without coverage under a valid
stormwater NPDES permit would constitute a violation of NCGS 143-215.1 and could result in
assessments of civil penalties of up to $25,000 per day. _ r«. --•
If you have any questions•regarding-permit renewal procedures please contact Brian Lowther of the
Stormwater Permitting Unit at (919)-807-6368 or [e-mail]. - �r • -
Sincerely,
Bradley Bennett, Supervisor
Stormwater Permitting Unit
Cc: Central Files
SPU Files
Mooresville Regional Office
1617 Mail Service Center, Raleigh, North Carolina 27699-1617
Location: 512 N. Salisbury St, Raleigh, North Carolina 27604
Phone: 91 M07-63001 FAX: [phone] Customer Service: 1-877-623-6748
Internet:w .ncwaterqualiy.org
An Equal Opportunity 1 Affirmative Action Employer
None
rthCarolina
Naturally

STORMWATER POLLUTION PREVENTION PLAN
DEVELOPMENT AND IMPLEMENTATION
CERTIFICATION
North Carolina Division of Water Quality - Storm water Permitting Unit
Facility Name
Permit Number:
Location Address:
County:
Michelin Aircraft Tire Company, A Division of Michelin N. America, Inc.
NCS000373
40589 S Stanly School
Norwood, NC 28128
Stanly
"I certify, under penalty of law, that the Stormwater Pollution Prevention Plan (SPPP) document and all
attachments were developed and implemented under my direction or supervision in accordance with a system
designed to assure that qualified personnel properly gather and evaluate the information required by the SPPP.
Based on my inquiry of the person or persons who manage the system, or those persons directly responsible
for gathering the information, the information gathered is, to the best of my knowledge and. belief, true,
accurate and complete."
And
"I certify that the SPPP has been developed, signed and retained at the named facility location, acid the SPPP
has been fully implemented at this facility location in accordance with the terms and conditions of the
stormwater discharge permit."
And
"I am aware that there are significant penalties for falsifying information, including the possibility of fines and
imprisonment for knowing violations."
Sign (:recording to permit signatory requirements) and return this Certification. DO NOT
SEND STORMWATER POLLUTION PREVENTION PLAN WITH THIS CERTIFICATION.
Signature
/-,
101 W.r�/I/ice. I ?,Print or type'name of pbr§cin sijning above
SPPP Certification 5/09

SUPPLEMENTAL INFORMATION REQUIRED FOR RENEWAL OF INDIVIDUAL
NPDES STORMWATER PERMIT
Two copies of each of the following shall accompany this submittal in order for the application
to be considered complete:
(Do not submit the site Stormwater Pollution Prevention Plan)
Initials
o� A? 1. A current Site Map from the Stormwater Pollution Prevention Plan. The location of
industrial activities (including storage of materials, disposal areas, process areas and
loading and unloading areas), drainage structures, drainage areas for each outfall,
building locations and impervious surfaces should be clearly noted.
4M 2. A summary of Analytical Monitoring results during the term of the existing permit
(if your permit required analytical sampling). Do not submit individual lab reports.
The summary can consist of a table including such items as outfall number,
parameters sampled, lab results, date sampled, and storm event data. H
3. A summary of the Visual Monitoring results. Do not submit individual monitoring
reports. The summary can consist of a table including such items as outfall number,
parameters surveyed, observations, and date monitoring conducted.
4. A summary of the Best Management Practices utilized at the permitted facility.
Summary should consist of a short narrative description of each BMP's in place at
the facility. If the implementation of any BMP's is planned, please include
information on these BMP's.
5. A short narrative describing any significant changes in industrial activities at the
permitted facility. Significant changes could include the addition or deletion of
work processes, changes in material handling practices, changes in material storage
practices, and/or changes in the raw materials used by the facility.
#4 M 6. Certification of the development and implementation of a Stormwater Pollution
Prevention Plan for the permitted facility (Sign and return attached form).
If the final year analytical monitoring of the existing permit term has not been completed
prior to filing the renewal submittal, then the last years monitoring results should be submitted
within 30 days of receipt of the laboratory reports. (i.e. do not withhold renewal submittal
waiting on lab results)
Representative storm sampling may now be conducted anytime during the year (the April
to November window has been eliminated) and the representative rainfall event is now defined
as a storm event that measures greater than 0.1 inches and is preceded by at least 72 hours in
which no storm event measuring greater than 0.1 inches has occurred.

SWPPP ANALYTICAL I QUALITATIVE
DATA
Analytical Requirements
Discharge Characteristics
Meas. Frequency
Sample Location
Units
Sample Type
Total suspended Solids
Annually *
Storm Discharge Outfall
mg/I
Grab
Chemical Oxygen Demand
Annually *
Storm Discharge Outfall
mg/I
Grab
pH
Annually *
Storm Discharge Outfall
Standard
Grab
Total Rainfall
Annually *
NA
Inches
NA
Event Duration
Annually *
NA
Minutes
NA
Total Flow
Annually *
Storm Discharge Outfall
MG
NA
* Unless cutoff levels are not reached. Then data not required until last year of permit.
Qualitative Requirements
Discharge Characteristics
Meas. Frequency
Sample Location
Color
Semi-annual
Storm Discharge Outfall
Odor
Semi-annual
Storm Discharge Outfall
Clarity
Semi-annual
Storm Discharge Outfall
Floating Solids
Semi-annual
Storm Discharge Outfall
Suspended Solids
Semi-annual
Storm Discharge Outfall
Foam
Semi-annual
Storm Discharge Outfall
Oil Sheen
Semi-annual
Storm Discharge Outfall
Other obvious indicators of
Semi-annual
Storm Discharge Outfall
stormwater pollution
Cutoff Concentrations
Discharge Characteristics
Cut-off Limits
Total Suspended Solids
100
Chemical Oxygen Demand
120
pH
Within 6.0-9.0

-27-
APPENDIX A: SITE MAP
Integrated SPCC / PPP Plans Michelin D-3
doe. #EP0097M00 Cat 203-102
Author: D Matthews Retention WA+2

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ANALYTICAL MONITORING RESULTS SDO #1
DATE
TOTAL
RAINFALL
(inches)
EVENT
DURATION
(minutes)
TOTAL
FLOW
(MG/min)
Ph
TOTAL
SUSPENDED
SOLIDS
(MG/L)
CHEMICAL
OXYGEN
DEMAND
(MG/L)
SAMPLED
BY
7-Sep-04
0.4
20
0.0069 MG
6.5
Not Detected
Not Detected
Donald Matthews
NA
No anal tical monitorin available during first of 2005 due to no rain.
22-Nov-05
0.45
60
0.0026
7.0
Not Detected
25
Don Matthews
14Jun-06
0.3
90
0.0011
6.6
Not Detected
49
Don Matthews
27-Oct-06
0.7
180
0.0013
6.8
Not Detected
Not Detected
Don Matthews
12Jun-07
0.5
120
0.0014
5.7
Not Detected
33
Don Matthews
24-Oct-07
0.4
90
0.0015
7.0
Not Detected
Not Detected
Don Matthews
28-Ma -08
0.66
120
0.0019
5.8
Not Detected
97.8
Don Matthews
11-Dec-08
0.9
90
0.0034
6.9
Not Detected
Not Detected
Don Matthews
9Jul-09
0.3
42
0.0024
6.6
Not Detected
Not Detected
Lisa Myers
21Jan-10
0.8
42
0.0065
5.6
Not Detected
Not Detected
Lisa Myers
arithmetic mean
91
t5.152 1I
6.0-9.0
100 mg/I
120 mg/I
-
CUTOFFS
Within Compliance?
OK
OK
OK
I
I
I
NPDES Permit # NCS000373
Michelin Aircraft Tire Corp.
Stanly County, NC

ANALYTICAL MONITORING RESULTS SDO #2
c X I , '
_DATE
TOTAL �x
RAINFALL
1dnPy
(Inches)
#. a4f
EVENTS
�O RATION
(mikdtes)
Sy,i
T_OHIT�rAL.�
FLOW
(MG/,mm)�
E
r
Ph;'.
TOTAL`.
SUSPENDED '
SOLIDS'
-HEyM10AL
;�O'XYGEN
DEMAND
SAMPLED`
BY,
7Sep-04
0.4
20
0.0035
6.2
16
28
Donald Matthews
NA
No anal ical 11 nitorin available duringfirst of 2005 due to no rain.
22-Nov-05
0.45
60
0.0013
6.9
Not Detected
160
Don Matthews
14Jun-06
0.3
90
0.0006
6.8
Not Detected
56
Don Matthews
27-Oct-06
0.7
180
0.0007
6.8
Not Detected
Not Detected
Don Matthews
12Jun-07
0.5
120
0.0007
6.5
Not Detected
130.0
Don Matthews
24-Oct-07
0.4
90
0.0010
5.8
Not Detected
38.0
Don Matthews
28-May-08
0.65
120
0.0010
6.0
Not Detected
64.3
Don Matthews
11-Dec-08
0.9
90
0.0018
6.6
Not Detected
26.0
Don Matthews
9Jul-09
0.3
42
0.0013
6.8
Not Detected
27.5
Lisa Myers
214an-10
0.8
42
0.0033
5.7
Not Detected
Not Detected
Lisa Myers
arithmetic mean =
EK;4=
�76 ms1/1'
`66F2F Z mgll�
0MEMTiQTiALSj
6.0-9.0
100 mg/I
120 mg/I
I CUTOFFS
Within Compliance?
OK
OK
OK
ph rounded to nearest whole number
Total flow prepared accordin to EPA Guidance Manual 50518-91-002 Section 5.5.1
NPDES Permit # NCS000373
Michelin Aircraft Tire Corp.
Stanly County, NC

2009
QUALITATIVE MONITORING RESULTS
EVENT DATE: 7/9/09
SDO #1
SDO #2
DISCHARGE CHARACTERISTICS
OK INOTOKI
FINDINGS
OK
INOT OK
FINDINGS
Color:
X
X
Odor:
X
X
Clarity:
X
X
Floating Solids:
X
X
Suspended Solids:
X
X
Foam:
X
X
Oil Sheen:
X
X
Other obvious indicators of
Storm Water Pollution:
None
None
Total Rainfall.
0.3"
Total
Total
Event Duration:
42 min.
Flow:
.0024 MG
Flow:
.0013 MG
Sampled by: Lisa Myers
EVENT DATE: 1/21/10
SDO #1
SDO #2
DISCHARGE CHARACTERISTICS
I OK
INOTOKI
FINDINGS
OK I
NOT OKI
FINDINGS
Color:
X
X
Odor:
X
X
Clarity:
X
X
Floating Solids:
X
X
Suspended Solids:
X
X
Foam:
X
X
Oil Sheen:
X
X
Other obvious indicators of
Storm Water Pollution:
None
None
Total Rainfall:
Z.
Total
Total
Event Duration:
42 min
I Flow:
1.0065 MG/min
Flow:
1.0033 MG/min
ISampled by: Lisa Myers
NPDES Permit # NCS000373
Michelin Aircraft Tire Corp.
Stanly County, NC

2008
QUALITATIVE MONITORING RESULTS
EVENT DATE: 5/28/08
SDO #1
01
SDO #2
DISCHARGE CHARACTERISTICS
OK
I NOT OKI
FINDINGS
OK
INOT OKI
FINDINGS
Color:
X
X
Odor:
X
X
Clarity:
X .
X
Floating Solids:
X
X
Suspended Solids:
X
X
Foam:
X
X
Oil Sheen:
X
X
Other obvious indicators of
Storm Water Pollution:
I None
None
Total Rainfall:
0.65"
Total
Total
Event Duration:
120 min.
Flow:
.0019 MG
Flow:
.0010 MG
Sampled by: Don Matthews
EVENT DATE: 12/11/08
SDO #1
SDO #2
DISCHARGE CHARACTERISTICS
OK
NOT OK
FINDINGS
OK
NOT OK
FINDINGS
Color:
X
X
Odor:
X
X
Clarity:
X
X
Floating Solids:
X
X
Suspended Solids:
X
X
Foam:
X
X
Oil Sheen:
X
X
Other obvious indicators of
Storm Water Pollution:
None
None
Total Rainfall:
.9"
Total
Total
Event Duration:
90 min
Flow:
.0034 MG/min
Flow:
1.0018 MG/min
Sampled by: Don Matthews
NPDES Permit # NCS000373
Michelin Aircraft Tire Corp.
Stanly County, NC

2007
QUALITATIVE MONITORING RESULTS
EVENT DATE: 6/12107
SDO #1
SDO #2
DISCHARGE CHARACTERISTICS
OK I
NOT OKI
FINDINGS
OK
INOTOKI
FINDINGS
Color:
X
X
Odor:
X
X
Clarity:
X
X
Floating Solids:
X
X
Suspended Solids:
X
X
Foam:
X
X
Oil Sheen:
X
X
Other obvious indicators of
Storm Water Pollution:
None
None
Total Rainfall:
0.5"
Total
Total
Event Duration:
120 min.
Flow:
.0014 MG
'
Flow:
.0007 MG
ISampled by: Don Matthews
EVENT DATE: 10/24/07
SDO #1
SDO #2
DISCHARGE CHARACTERISTICS
OK
INOTOKI
FINDINGS
OK
INOT OK
FINDINGS
Color:
X
X
Odor:
X
X
Clarity:
X
X
Floating Solids:
X
X
Suspended Solids:
X
X
Foam:
X
X
Oil Sheen:
X
X
Other obvious indicators of
Storm Water Pollution:
None
None
Total Rainfall:
.4"
Total
Total
Event Duration:
90 min
Flow:
.0015 MG/min
Flow:
1.0010 MG/min
ISampled by: Don Matthews
NPDES Permit # NCS000373
Michelin Aircraft Tire Corp.
Stanly County, NC

2006
QUALITATIVE MONITORING RESULTS
EVENT DATE: 6114106
1 SDO #1
01
SDO #2
DISCHARGE CHARACTERISTICS
I OK
INOTOKI
FINDINGS
OK
INOT OK
FINDINGS
Color:
X
X
Odor:
X
X
Clarity:
X
X
Floating Solids:
X
X
Suspended Solids:
X
X
Foam:
X
X
Oil Sheen:
X
X
Other obvious indicators of
Storm Water Pollution:
None
None
Total Rainfall:
0.3"
Total
Total
Event Duration:
180 min.
Flow:
0013 MG
Flow:
.0006 MG
(Sampled by: Don Matthews
EVENT DATE: 10/27/06
SDO #1
SDO #2
DISCHARGE CHARACTERISTICS
OK
INOTOKI
FINDINGS
OK
INOT OKI
FINDINGS
Color:
X
X
Odor:
X
X
Clarity:
X
X
Floating Solids:
X
X
Suspended Solids:
X
X
Foam:
X
X
Oil Sheen:
X
X
Other obvious indicators of
Storm Water Pollution:
None
None
Total Rainfall:
.70"
Total
Total
Event Duration:
2.0 hrs
I Flow:
1.0014 MG/min
I Flow:
1.0007 MG/min
I
I
I
ISampled by: Don Matthews
NPDES Permit # NCS000373
Michelin Aircraft Tire Corp.
Stanly County, NC

2005
QUALITATIVE MONITORING RESULTS
EVENT DATE: 11/22/06
SDO #1
SDO #2
DISCHARGE CHARACTERISTICS
OK
NOT OKI
FINDINGS
OK INOTOKI
FINDINGS
Color:
X
X
Odor:
X
X
Clarity:
X
X
Floating Solids:
X
X
Suspended Solids:
X
X
Foam:
X
X
Oil Sheen:
X
X
Other obvious indicators of
Storm Water Pollution:
None
None
Total Rainfall:
1 0.45
Total
Total
Event Duration:
J 60 min.
I Flow:
1 .0026 MG
'
Flow:
.0013 MG
II
ISampled by: Don Matthews
EVENT DATE:
SDO #1
SDO #2
DISCHARGE CHARACTERISTICS
OK INOTOKI FINDINGS
OK INOT OK FINDINGS
Color:
Odor:
Clarity:
NO SAMPLING DONE - NO RAIN
NO SAMPLING DONE - NO RAIN
Floating Solids:
1.
Suspended Solids:
Foam:
Oil Sheen:
Other obvious indicators of
Storm Water Pollution:
Total Rainfall:
Total
Total
Event Duration:
Flow:
'
Flow:
Sampled by: Don Matthews
NPDES Permit # NCS000373
Michelin Aircraft Tire Corp.
Stanly County, NC

2004 -
QUALITATIVE MONITORING RESULTS
EVENT DATE: 9/7/04
SDO #1
SDO #2
DISCHARGE CHARACTERISTICS
OK
NOT OK
FINDINGS
OK
I NOT OKI
FINDINGS
Color:
X
X
Odor:
X
X
Clarity:
X
X
Floating Solids:
X
X
Suspended Solids:
X
X
Foam:
X
X
Oil Sheen:
X
X
Other obvious indicators of
Storm Water Pollution:
None
None
Total Rainfall:
0.4
Total
Total
Event Duration:
20 min.
Flow:
.0069 MG
Flow:
.0035 MG
Sampled by: Don Matthews
NPDES Permit # NCS000373
Michelin Aircraft Tire Corp.
Stanly County, NC

CALCULATION OF TOTAL FLOW DURING STORM EVENTS
Tot Runoff Vol (cubic ft) = Tot rainfall (ft) x [facility paved area x .90 + facility unpaved area x .50]
Total Flow = Volume / Duration of event
Outfall #1 - rainfall x [ 391,973 sq ft x .90 + 394,538 sq ft x .50 ] _
rainfall x [ 352,776 sq ft + 197,269 ] _
rainfall x 550,045 =
enter rainfall 0.8 x .08333 ft per inch (conversion factor) = 0.067
total Vol = 36668 cubic ft
total Vol = 7.48052 gal per cubic ft (conversion factor) x volume / 1,000,000
total Vol = 274297 divided by 1,000,000 =
total Vol = 0.2743 million gallons (MG)
Total Flow = Total Vol / duration of event (minutes) Enter duration - 42 minutes
FLOW RATE = 0.0065 MG/min F 21-Jan-10

CALCULATION OF TOTAL FLOW DURING STORM EVENTS
Tot Runoff Vol (cubic ft) = Tot rainfall (ft) x [facility paved area x .90 + facility unpaved area x .50]
Total Flow = Volume / Duration of event
Outfall #2 - rainfall x [ 187,322 sq ft x .90 + 225,612 sq ft x .50 ] _
rainfall x [ 168,590 sq ft + 112,806 ] _
rainfall x 281,396 =
enter rainfall 0.8 x .08333 ft per inch (conversion factor) = 0.067
total Vol = 18759 cubic ft
total Vol = 7.48052 gal per cubic ft (conversion factor) x volume / 1,000,000
total Vol = 140327 divided by 1,000,000 =
total Vol = 0.1403 million gallons (MG)
Total Flow = Total Vol / duration of event (minutes) Enter duration - 42 minutes
FLOW RATE = 0.0033 MG/min F 21-Jan-10

CALCULATION OF TOTAL FLOW DURING STORM EVENTS
Tot Runoff Vol (cubic ft) = Tot rainfall (ft) x [facility paved area x .90 + facility unpaved area x .50]
Total Flow = Volume / Duration of event
Outfall #1 - rainfall x [ 391,973 sq ft x .90 + 394,538 sq ft x .50 ] _
rainfall x [ 352,776 sq ft + 197,269 ] _
rainfall x 550,045 =
enter rainfall F 0.3 x .08333 ft per inch (conversion factor) = 0.025
total vol = 13751 cubic ft
total vol = 7.48052 gal per cubic ft (conversion factor) x volume / 1,000,000
total vol = 102861 divided by 1,000,000 =
total vol = 0.1029 million gallons (MG)
Total Flow = Total vol / duration of event (minutes) Enter duration - 42 minutes
FLOW RATE = 0.0024 MG/min 9-7-09

CALCULATION OF TOTAL FLOW DURING STORM EVENTS
Tot Runoff Vol (cubic ft) = Tot rainfall (ft) x [facility paved area x .90 + facility unpaved area x .50]
Total Flow = Volume / Duration of event
Outfall #2 - rainfall x [ 187,322 sq ft x .90 + 225,612 sq ft x .50 ] _
rainfall x [ 168,590 sq ft + 112,806 ] _
rainfall x 281,396 =
enter rainfall 0.3 x .08333 ft per inch (conversion factor) = 0.025
total vol = 7034.6 cubic ft
total vol = 7.48052 gal per cubic ft (conversion factor) x volume / 1,000,000
total vol = 52623 divided by 1,000,000 =
total vol = 0.0526 million gallons (MG)
Total Flow = Total vol / duration of event (minutes) Enter duration - 42 minutes
FLOW RATE = 0.0013 MG/min r 9-Ju1709

CALCULATION OF TOTAL FLOW DURING STORM EVENTS
Tot Runoff Vol (cubic ft) = Tot rainfall (ft) x [facility paved area x .90 + facility unpaved area x .50]
Total Flow = Volume / Duration of event
Outfall #1 - rainfall x [ 391,973 sq ft x .90 + 394,538 sq ft x .50 ] _
rainfall x [ 352,776 sq ft + 197,269 ] _
rainfall x 550,045 =
enter rainfall 0.9 x .08333 ft per inch (conversion factor) = 0.075
total vol = 41252 cubic ft
total vol = 7.48052 gal per cubic ft (conversion factor) x volume / 1,000,000
total vol = 308584 divided by 1,000,000 =
total vol = 0.3086 million gallons (MG)
Total Flow = Total vol / duration of event (minutes) Enter duration - 90 minutes
FLOW RATE = 0.0034 MG/min 11-Dec-08

CALCULATION OF TOTAL FLOW DURING STORM EVENTS
Tot Runoff Vol (cubic ft) = Tot rainfall (ft) x [facility paved area x .90 + facility unpaved area x .50]
Total Flow = Volume / Duration of event
Outfall #2 - rainfall x [ 187,322 sq ft x .90 + 225,612 sq ft x .50 ] _
rainfall x [ 168,590 sq ft + 112,806 ] _
rainfall x 281,396 =
enter rainfall 0.9 x .08333 ft per inch (conversion factor) = 0.075
total vol = 21104 cubic ft
total vol = 7.48052 gal per cubic ft (conversion factor) x volume / 1,000,000
total vol = 157868 divided by 1,000,000 =
total vol = 0.1579 million gallons (MG)
Total Flow = Total vol / duration of event (minutes) Enter duration - 90 minutes
FLOW RATE = 0.0018 MG/min 11-Dec-08

CALCULATION OF TOTAL FLOW DURING STORM EVENTS
Tot Runoff Vol (cubic ft) = Tot rainfall (ft) x [facility paved area x .90 + facility unpaved area x .50]
Total Flow = Volume / Duration of event
Outfall #2 - rainfall x [ 187,322 sq ft x .90 + 225,612 sq ft x .50 ] _
rainfall x [ 168,590 sq ft + 112,806 ] _
rainfall x 281,396 =
enter rainfall 0.65 x .08333 ft per inch (conversion factor) = 0.054
total Vol = 15242 cubic ft
total Vol = 7.48052 gal per cubic ft (conversion factor) x volume / 1,000,000
total Vol = 114016 divided by 1,000,000 =
total Vol = 0.114 million gallons (MG)
Total Flow = Total Vol / duration of event (minutes) Enter duration - F 120 minutes
FLOW RATE = 0.001 MG/min 28-May-08

CALCULATION OF TOTAL FLOW DURING STORM EVENTS
Tot Runoff Vol (cubic ft) = Tot rainfall (ft) x [facility paved area x .90 + facility unpaved area x .50]
Total Flow = Volume / Duration of event
Outfall #1 - rainfall x [ 391,973 sq ft x .90 + 394,538 sq ft x .50 ] _
rainfall x [ 352,776 sq ft + 197,269 ] _
rainfall x 550,045 =
enter rainfall 0.65 x .08333 ft per inch (conversion factor) = 0.054
total vol = 29793 cubic ft
total vol = 7.48052 gal per cubic ft (conversion factor) x volume / 1,000,000
total vol = 222866 divided by 1,000,000 =
total vol = 0.2229 million gallons (MG)
Total Flow = Total vol / duration of event (minutes) Enter duration - 120 minutes
FLOW RATE = 0.0019 MG/min 28-May-08

CALCULATION OF TOTAL FLOW DURING STORM EVENTS
Tot Runoff Vol (cubic ft) = Tot rainfall (ft) x [facility paved area x .90 + facility unpaved area x .50]
Total Flow = Volume / Duration of event
Outfall #1 - rainfall x [ 391,973 sq ft x .90 + 394,538 sq ft x .50 ] _
rainfall x [ 352,776 sq ft + 197,269 ] _
rainfall x 550,045 =
enter rainfall 0.4 x .08333 ft per inch (conversion factor) = 0.033
total vol = 18334 cubic ft
total vol = 7.48052 gal per cubic ft (conversion factor) x volume / 1,000,000
total vol = 137149 divided by 1,000,000 =
total vol = 0.1371 million gallons(
Total Flow = Total vol / duration of event (minutes) Enter duration - 90 minutes
FLOW RATE = 0.0015 MG/min F 24-0ct-07

CALCULATION OF TOTAL FLOW DURING STORM EVENTS
Tot Runoff Vol (cubic ft) = Tot rainfall (ft) x [facility paved area x .90 + facility unpaved area x .50]
Total Flow = Volume / Duration of event
Outfall #2 - rainfall x [ 187,322 sq ft x .90 + 225,612 sq ft x .50 ] _
rainfall x [ 168,590 sq ft + 112,806 ] _
rainfall x 281,396 =
enter rainfall 0.4 x .08333 ft per inch (conversion factor) _
total vol = 9379.5 cubic ft
0.033
total vol = 7.48052 gal per cubic ft (conversion factor) x volume / 1,000,000
total vol = 70163 divided by 1,000,000 =
total vol = 0.0702 million gallons (MG)
Total Flow = Total vol / duration of event (minutes) Enter duration - 90 minutes
FLOW RATE = 0.0007796 MG/min I 24-Oct-07

CALCULATION OF TOTAL FLOW DURING STORM EVENTS
Tot Runoff Vol (cubic ft) = Tot rainfall (ft) x [facility paved area x .90 + facility unpaved area x .50]
Total Flow = Volume / Duration of event
Outfall #1 - rainfall x [ 391,973 sq ft x .90 + 394,538 sq ft x .50 ] _
rainfall x [ 352,776 sq ft + 197,269 ] _
rainfall x 550,045 =
enter rainfall 0.5 x .08333 ft per inch (conversion factor) = 0.042
total vol = 22918 cubic ft
total vol = 7.48052 gal per cubic ft (conversion factor) x volume / 1,000,000
total vol = 171436 divided by 1,000,000 =
total vol = 0.1714 million gallons (MG)
Total Flow = Total vol / duration of event (minutes) Enter duration --11 2-0--1 minutes
FLOW RATE = 0.0014 MG/min 12-Jun-07

CALCULATION OF TOTAL FLOW DURING STORM EVENTS
Tot Runoff Vol (cubic ft) = Tot rainfall (ft) x [facility paved area x .90 + facility unpaved area x .50]
Total Flow = Volume / Duration of event
Outfall #2 - rainfall x ( 187,322 sq ft x .90 + 225,612 sq ft x .50 ] _
rainfall x [ 168,590 sq ft + 112,806 ] _
rainfall x 281,396 =
enter rainfall 0.5 x .08333 ft per inch (conversion factor) = 0.042
total vol =
11724 cubic ft
total vol = 7.48052 gal per cubic ft (conversion factor) x volume / 1,000,000
total vol = 87704 divided by 1,000,000 =
total vol = 0.0877 million gallons (MG)
Total Flow = Total vol / duration of event (minutes) Enter duration --11 2-07-1 minutes
FLOW RATE = 0.0007 MG/min I 12-Jun-07

CALCULATION OF TOTAL FLOW DURING STORM EVENTS
Tot Runoff Vol (cubic ft) = Tot rainfall (ft) x [facility paved area x .90 + facility unpaved area x .50]
Total Flow = Volume / Duration of event
Outfall #1 - rainfall x [ 391,973 sq ft x .90 + 394,538 sq ft x .50 J =
rainfall x [ 352,776 sq ft + 197,269 ] _
rainfall x 550,045 =
enter rainfall 0.7 x .08333 ft per inch (conversion factor) = 0.058
total vol = 32085 cubic ft
total vol = 7.48052 gal per cubic ft (conversion factor) x volume / 1,000,000
total vol = 240010 divided by 1,000,000 =
total vol = 0.24 million gallons (MG)
Total Flow = Total vol / duration of event (minutes) Enter duration - 180 minutes
FLOW RATE = 0.0013 MG/min 27-Oct-06

CALCULATION OF TOTAL FLOW DURING STORM EVENTS
Tot Runoff Vol (cubic ft) = Tot rainfall (ft) x [facility paved area x .90 + facility unpaved area x .50]
Total Flow = Volume / Duration of event
Outfall #2 - rainfall x [ 187,322 sq ft x .90 + 225,612 sq ft x .50 ] _
rainfall x [ 168,590 sq ft + 112,806 ] _
rainfall x 281,396 =
enter rainfall 0.7 x .08333 ft per inch (conversion factor) = 0.058
total Vol =
16414 cubic ft
total Vol = 7.48052 gal per cubic ft (conversion factor) x volume / 1,000,000
total Vol = 122786 divided by 1,000,000 =
total Vol = 0.1228 million gallons (MG)
Total Flow = Total Vol / duration of event (minutes) Enter duration - 180 minutes
FLOW RATE = 0.0007 MG/min I 27-Oct-06

CALCULATION OF TOTAL FLOW DURING STORM EVENTS
Tot Runoff Vol (cubic ft) = Tot rainfall (ft) x [facility paved area x .90 + facility unpaved area x .50]
Total Flow = Volume / Duration of event
Outfall #1 - rainfall x [ 391,973 sq ft x .90 + 394,538 sq ft x .50 ] _
rainfall x [ 352,776 sq ft + 197,269 ] _
rainfall x 550,045 =
enter rainfall 0.3 x .08333 ft per inch (conversion factor) = 0.025
total vol = 13751 cubic ft
total vol = 7.48052 gal per cubic ft (conversion factor) x volume / 1,000,000
total vol = 102861 divided by 1,000,000 =
total vol = 0.1029 million gallons (MG)
Total Flow = Total vol / duration of event (minutes) Enter duration - 90 minutes
FLOW RATE = 0.0011 MG/min 14-Jun-06

CALCULATION OF TOTAL FLOW DURING STORM EVENTS
Tot Runoff Vol (cubic ft) = Tot rainfall (ft) x [facility paved area x .90 + facility unpaved area x .50)
Total Flow = Volume / Duration of event
Outfall #2 - rainfall x [ 187,322 sq ft x .90 + 225,612 sq ft x .50 ] _
rainfall x [ 168,590 sq ft + 112,806 ] _
rainfall x 281,396 =
enter rainfall 0.3 x .08333 ft per inch (conversion factor) = 0.025
total vol =
7034.6 cubic ft
total vol = 7.48052 gal per cubic ft (conversion factor) x volume / 1,000,000
total vol = 52623 divided by 1,000,000 =
total vol = 0.0526 million gallons (MG)
Total Flow = Total vol / duration of event (minutes) Enter duration - 90 minutes
FLOW RATE = 0.0006 MG/min I 14-Jun-06

CALCULATION OF TOTAL FLOW DURING STORM EVENTS
Tot Runoff Vol (cubic ft) = Tot rainfall (ft) x [facility paved area x .90 + facility unpaved area x .50]
Total Flow = Volume / Duration of event
Outfall #1 - rainfall x [ 391,973 sq ft x .90 + 394,538 sq ft x .50 ] _
rainfall x [ 352,776 sq ft + 197,269 ] _
rainfall x 550,045 =
enter rainfall 0.45 x .08333 ft per inch (conversion factor) _
total Vol = 20626 cubic ft
0.037
total Vol = 7.48052 gal per cubic ft (conversion factor) x volume / 1,000,000
total Vol = 154292 divided by 1,000,000 =
total Vol = 0.1543 million gallons (MG)
Total Flow = Total Vol / duration of event (minutes) Enter duration - 60 minutes
FLOW RATE = 0.0026 MG/min 22-Nov-05

CALCULATION OF TOTAL FLOW DURING STORM EVENTS
Tot Runoff Vol (cubic ft) = Tot rainfall (ft) x [facility paved area x .90 + facility unpaved area x .50]
Total Flow = Volume / Duration of event
Outfall #2 - rainfall x [ 187,322 sq ft x .90 + 225,612 sq ft x .50 ] _
rainfall x [ 168,590 sq ft + 112,806 ] _
rainfall x 281,396 =
enter rainfall 0.45 x .08333 ft per inch (conversion factor) = 0.037
total vol =
10552 cubic ft
total vol = 7.48052 gal per cubic ft (conversion factor) x volume / 1,000,000
total vol = 78934 divided by 1,000,000 =
total vol = 0.0789 million gallons (MG)
Total Flow = Total vol / duration of event (minutes) Enter duration --6-0-minutes
FLOW RATE = 0.0013 MG/min I 22-Nov-05

CALCULATION OF TOTAL FLOW DURING STORM EVENTS
Tot Runoff Vol (cubic ft) = Tot rainfall (ft) x [facility paved area x .90 + facility unpaved area x .50]
Total Flow = Volume / Duration of event
Outfall #1 - rainfall x [ 391,973 sq ft x .90 + 394,538 sq ft x .50 ] _
rainfall x [ 352,776 sq ft + 197,269 ] _
rainfall x 550,045 =
enter rainfall 0.4 x .08333 ft per inch (conversion factor) = 0.033
total Vol = 18334 cubic ft
total Vol = 7.48052 gal per cubic ft (conversion factor) x volume / 1,000,000
total Vol = 137149 divided by 1,000,000 =
total Vol = 0.1371 million gallons (MG)
Total Flow = Total Vol / duration of event (minutes) Enter duration - 20 minutes
FLOW RATE = 0.0069 MG/min 7-Sep-04

CALCULATION OF TOTAL FLOW DURING STORM EVENTS
Tot Runoff Vol (cubic ft) = Tot rainfall (ft) x [facility paved area x .90 + facility unpaved area x .50]
Total Flow = Volume / Duration of event
Outfall #2 - rainfall x [ 187,322 sq ft x .90 + 225,612 sq ft x .50 ] _
rainfall x [ 168,590 sq ft + 112,806 ] _
rainfall x 281,396 =
enter rainfall 0.4 x .08333 ft per inch (conversion factor) = 0.033
total vol = 9379.5 cubic ft
total vol = 7.48052 gal per cubic ft (conversion factor) x volume / 1,000,000
total vol = 70163 divided by 1,000,000 =
total vol = 0.0702 million gallons (MG)
Total Flow = Total vol / duration of event (minutes) Enter duration - F 20 minutes
FLOW RATE = 0.0035 MG/min 7-Sep-04