AQ_F_1300104_20171212_PRMT_Permit

ti. ROY COOPER
Governor
.c} .
MICHAEL S.REGAN
w Secretary
Air Quality T T A L y� 7T�T v
ENVIRONMENTAL QUALITY MICHAEL A.ABI�ACZI SKAS
Director
December 12, 2017
Mr. Bob Pate
Electric Director
Concord City Generating Plant#2
850 Warren C. Coleman Boulevard
Concord,NC 28025
Subject: Air Permit No. 07645R07
Concord City Generating Plant#2
Concord, Cabarrus County,North Carolina
Permit Class: Synthetic Minor
Facility ID# 1300104
Dear Mr. Pate:
In accordance with your completed application received November 28,2017, we are
forwarding herewith Permit No. 07645R07 to Concord City Generating Plant#2, Concord,
Cabarrus County,North Carolina for the construction and operation of air emissions sources or air
cleaning devices and appurtenances. Additionally, any emissions activities determined from your air
permit application as meeting the exemption requirements contained in 15A NCAC 2Q .0102 have
been listed for information purposes as an "ATTACHMENT" to the enclosed air permit. Please note
the records retention requirements are contained in General Condition 2 of the General Conditions
and Limitations.-
If any parts, requirements, or limitations contained in this permit are unacceptable to you,
you have the right to request a formal adjudicatory hearing within 30 days following receipt of this
permit, identifying the specific issues to be contested. Such a request will stay the effectiveness of
the entire permit. This hearing request must be in the form of a written petition, conforming to G.S.
150B-23 of the North Carolina General Statutes, and filed with the Office of Administrative
Hearings, 6714 Mail Service Center,Raleigh,NC 27699-6714. The form for requesting a formal
adjudicatory hearing may be obtained upon request from the Office of Administrative Hearings.
Unless a request for a hearing is made pursuant to G.S. 15013-23,this air permit shall be final and
binding.
You may request modification of your air permit through informal means pursuant to G.S.
15013-22. This request must be submitted in writing to the Director and must identify the specific
provisions or issues for which the modification is sought. Please note that the permit will become
final and binding regardless of a request for informal modification unless a request for a hearing is
i
also made under G.S. 15013-23.
State of North Carolina I Environmental Quality I Air Quality
Mooresville Regional Office 1 610 East Center Avenue,Suite 301 1 Mooresville,NC 28115
704 663 1699 T 1 704 663 7579 F

Bob Pate
December 12,2017
Page 2
Unless exempted by a condition of this permit or the regulations, construction of new
air pollution sources or air cleaning devices, or modifications to the sources or air cleaning
devices described in this permit must be covered under a permit issued by the Division of Air
Quality prior to construction. Failure to do so is a violation of G.S. 143-215.108 and may
subject the Permittee to civil or criminal penalties as described in G.S. 143-215.114A and 143-
215.114B.
This permit shall be effective from December 12, 2017 until November 30,2025, is
nontransferable to future owners and operators, and shall be subject to the conditions and limitations
as specified therein.
Changes have been made to the permit stipulations. The Permittee is responsible for
carefully reading the entire permit and evaluating the requirements of each permit
stipulation. The Permittee shall comply with all terms, conditions,requirements,limitations
and restrictions set forth in this permit. Noncompliance with any permit condition is grounds
for enforcement action,for permit termination, revocation and reissuance, or modification,or
for denial of a permit renewal application. Should you have any questions concerning this matter,
please contact Jennifer Womick at 704-663-1699.
Sincerely,
Bruce J. Ingle, Regional Supervisor
Division of Air Quality, NC DEQ
JAW
Enclosures
c: Mooresville Regional Office
G:WQ\Shared\WPDATA\COUNTIES\CABARRUS\00104\R07 PERMIT.docx

NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION
DEPARTMENT OF ENVIRONMENTAL QUALITY
DIVISION OF AIR QUALITY
AIR PERMIT NO. 07645R07
Issue Date: December 12, 2017 Effective Date: December 12, 2017
Expiration Date:November 30, 2025 Replaces Permit: 07645R06
To construct and operate air emission source(s) and/or air cleaning device(s), and for the
discharge of the associated air contaminants into the atmosphere in accordance with the provisions
of Article 21B of Chapter 143, General Statutes of North Carolina(NCGS) as amended, and other
applicable Laws, Rules and Regulations,
Concord City Generating Plant#2
211 Manor Avenue, SW
Concord, Cabarrus County,North Carolina
Permit Class: Synthetic Minor
Facility ID# 1300104
(the Permittee) is hereby authorized to construct and operate the air emissions sources and/or air
cleaning devices and appurtenances described below:
Emission Emission Source Control Control System
Source ID Description System ID Description
1 stationary No.2 fuel oil- CD-1 catalytic oxidizer(up to 1.5
fired reciprocating diesel cubic feet of oxidation
engine(2,304 maximum catalyst)
brake horsepower)
____. .. ..._.._. __... __.. ..... _ . . ._.__.._...._
2 stationary No.2 fuel oil- CD-2 `catalytic oxidizer(up to 1.5
fired reciprocating diesel cubic feet of oxidation
engine(2,304 maximum catalyst)
brake horsepower)
3 stationary No.2 fuel oil- CD-3 catalytic oxidizer(up to 1.5
fired reciprocating diesel cubic feet of oxidation
engine(2,304 maximum catalyst)
brake horsepower)
4 stationary No.2 fuel oil- CD-4 catalytic oxidizer(up to 1.5
fired reciprocating diesel cubic feet of oxidation
engine(2,304 maximum catalyst)
brake horsepower)
5 stationary No.2 fuel oil- CD-5 catalytic oxidizer(up to 1.5
fired reciprocating diesel .cubic feet of oxidation
engine(2,304 maximum catalyst)
brake horsepower)

Permit No. 07645R07
Page 2
Emission Emission Source Control Control System
Source ID Description System ID Description
6 stationary.No.2 fuel oil- CD-6 catalytic oxidizer(up to 1.5
fired reciprocating diesel cubic feet of oxidation
engine(2,304 maximum catalyst)
brake horsepower)
in accordance with the completed application 1300104.17A received November 28, 2017 including
any plans, specifications,previous applications, and other supporting data, all of which are filed
with the Department of Environmental Quality, Division of Air Quality (DAQ) and are incorporated
as part of this permit.
This permit is subject to the following specified conditions and limitations including any
TESTING, REPORTING, OR MONITORING REQUIREMENTS:
A. SPECIFIC CONDITIONS AND LIMITATIONS
1. Any air emission sources or control devices authorized to construct and operate above must
be operated and maintained in accordance with the provisions contained herein. The
Permittee shall comply with applicable Environmental Management Commission
Regulations, including Title 15A North Carolina Administrative Code (NCAC), Subchapter
2D .0202,2D .0400, 2D .0516, 2D .0521, 2D .0535, 2D .0540,2D .0611,2D .1111 (40 CFR
63, Subpart ZZZZ), 2D .1400, 2Q .0315 and 2Q .0317 (Avoidance).
2. PERMIT RENEWAL AND EMISSION INVENTORY REQUIREMENT-The Permittee,
at least 90 days prior to the expiration date of this permit,shall request permit renewal by
letter in accordance with 15A NCAC 2Q .0304(d) and (f).Pursuant to 15A NCAC 2Q
.0203(i), no permit application fee is required for renewal of an existing air permit(without
a modification request). The renewal request(with AA application form) should be
submitted to the Regional Supervisor,DAQ. Also, at least 90 days prior to the expiration
date of this permit,the Permittee shall submit the air pollution emission inventory report
(with Certification Sheet) in accordance with 15A NCAC 2D .0202,pursuant to N.C.
General Statute 143 215.65. The report shall be submitted to the Regional Supervisor, DAQ
and shall document air pollutants emitted for the 2024 calendar year.
3. LIMITATION TO AVOID VIOLATION OF 15A NCAC 2D .0402 "SULFUR OXIDES" -
To comply with this permit and the 24-hour National Ambient Air Quality Standard
(NAAQS) for sulfur dioxide,the sulfur content of the fuel oil fired in the six(6)No. 2 fuel
oil-fired reciprocating diesel engines (ID Nos. 1 through 6) shall not exceed 0.5%by weight.
The recordkeeping requirements in the synthetic minor condition will be adequate to
demonstrate compliance with this limitation.

Permit No. 07645R07
Page 3
4. LIMITATION TO AVOID VIOLATION OF 15A NCAC 2D .0407 "NITROGEN
DIOXIDE" -To comply with this permit and in order to assure compliance with the
National Ambient Air Quality Standard (NA-AQS) for nitrogen dioxide of 0.53 parts per
million(100 micrograms per cubic meter) annual arithmetic mean, as requested by the
Permittee, nitrogen dioxide emissions from the six (6)No. 2 fuel oil-fired reciprocating
diesel engines (ID Nos. 1 through 6) shall be less than 105 tons per consecutive twelve(12)
month period. The recordkeeping and reporting requirements in the synthetic minor
condition will be adequate to demonstrate compliance with this limitation.
5. SULFUR DIOXIDE CONTROL REQUIREMENT -As required by 15A NCAC 2D .0516
"Sulfur Dioxide Emissions from Combustion Sources," sulfur dioxide emissions from the
combustion sources shall not exceed 2.3 pounds per million Btu heat input.
6. VISIBLE EMISSIONS CONTROL REQUIREMENT -As required by 15A NCAC 2D
.0521 "Control of Visible Emissions," visible emissions from the emission sources,
manufactured after July 1, 1971, shall not be more than 20 percent opacity when averaged
over a six-minute period, except that six-minute periods averaging not more than 87 percent
opacity may occur not more than once in any hour nor more than four times in any 24-hour
period. However, sources which must comply with 15A NCAC 2D .0524 "New Source
Performance Standards" or.1110 "National Emission Standards for Hazardous Air
Pollutants" must comply with applicable visible emissions requirements contained therein.
7. NOTIFICATION REQUIREMENT -As required by 15A NCAC 2D .0535,the Permittee of
a source of excess emissions that last for more than four hours and that results from a
malfunction, a breakdown of process or control equipment or any other abnormal
conditions, shall:
a. Notify the Director or his designee of any such occurrence by 9:00 a.m. Eastern time
of the Division's next business day of becoming aware of the occurrence and
describe:.
i. the name and location of the facility,
ii. the nature and cause of the malfunction or breakdown,
iii. the time when the malfunction or breakdown is first observed,
iv. the expected duration, and
V. an estimated rate of emissions.
b. Notify the Director or his designee immediately when the corrective measures have
been accomplished.
This reporting requirement does not allow the operation of the facility in excess of
Environmental Management Commission Regulations.

Permit No. 07645R07
Page 4
8. FUGITIVE DUST CONTROL REQUIREMENT - As required by 15A NCAC 2D .0540
"Particulates from Fugitive Dust Emission Sources," the Permittee shall not cause or allow
fugitive dust emissions to cause or contribute to substantive complaints or excess visible
emissions beyond the property boundary. If substantive complaints are received or excessive
fugitive dust emissions from the facility are observed beyond the property boundaries for six
minutes in any one hour(using Reference Method 22 in 40 CFR,Appendix A),the owner or
operator may be required to submit a fugitive dust plan as described in 2D .0540(0.
"Fugitive dust emissions" means particulate matter that does not pass through a process
stack or vent and that is generated within plant property boundaries from activities such as:
unloading and loading areas,process areas stockpiles, stock pile working,plant parking lots,
and plant roads (including access roads and haul roads).
9. CATALYTIC OXIDIZER REQUIREMENTS - As required by 15A NCAC 2D .0611,
emissions shall be controlled as described in the permitted equipment list.
a. Inspection and Maintenance Requirements -To comply with the provisions of this
permit and ensure that emissions do not exceed the regulatory limits,the Permittee
shall establish an inspection and maintenance (I&M)schedule/checklist based on
manufacturer's recommendations. As a minimum,the I&M program will include an
annual (for each 12 month period following the initial inspection)internal inspection
of the primary heat exchanger and associated inlet/outlet valves to ensure structural
integrity.
b. Recordkeeping Requirements -The results of all inspections and any variance from
manufacturer's recommendations or.from those given in this permit(when
applicable) shall be investigated with corrections made and dates of actions recorded
in a logbook. Records of all maintenance activities shall be recorded in the logbook.
The logbook(in written or electronic form) shall be kept on-site and made available
to DAQ personnel upon request.
10. 15A NCAC 2D I I I I "MAXIMUM ACHIEVABLE CONTROL TECHNOLOGY" for the
diesel engines (ID Nos. 1, 2, 3, 4, 5 and 6), which is considered an existing,non-emergency,
non-black start, compression ignition(CI)reciprocating internal combustion engine (RICE)
greater than 500 brake horsepower,the Permittee shall comply with all applicable
provisions, including the notification,testing, recordkeeping, reporting and monitoring
requirements contained in Environmental Management Commission Standard 15A NCAC
2D .I 111, "Maximum Achievable Control Technology" as promulgated in 40 CFR 63,
Subpart ZZZZ, "National Emissions Standards for Hazardous Air Pollutants for Stationary
Reciprocating Internal Combustion Engines", including Subpart A "General Provisions."
a. Compliance Date - Pursuant to 40 CFR 63.6595(a)(1),the source(s) shall be in
compliance with 40 CFR 63, Subpart ZZZZ by May 3,2013.
b. Emission Limits - Pursuant to 40 CFR 63.6603(a); the affected source must comply
with the following emission limits, except during periods of startup:
i. The concentration of carbon monoxide (CO)in the exhaust cannot exceed 23
ppmvd at 15 percent oxygen; or

Permit No. 07645R07
Page 5
ii. Reduce CO emissions by 70 percent or more; or
iii. If the engine is certified to the Tier 3 (Tier 2 for engines above 560 kW)
emission standards in Table 1 of 40 CFR 89.112,the Permittee may comply
with the requirements under NESHAP Subpart ZZZZ by meeting the
requirements for Tier 3 engines (Tier 2 for engines above 560 kW) in 40 CFR
part 60 Subpart 1111 instead of the emission limitations and other requirements
that would otherwise apply under NESHAP Subpart ZZZZ for existing non-
emergency Cl RICE with a site rating of more than 500 brake HP located at
an area source of HAP emissions.
c. Testing- Pursuant to 40 CFR 63.6612(a), 63.6615, 63.6620, 63.6630, 63.6640, and
63.6645 the Permittee shall:
i. Conduct an emission test per 40 CFR 63.6620 and Table 4 of 40 CFR 63
Subpart ZZZZ within 180 days after the compliance date.
ii. Per 40 CFR 63.6630(b), during the initial performance test,the Permittee
shall establish each operating limitation identified in Table 2b of 40 CFR 63
Subpart ZZZZ (summarized below):
The Permittee shall establish and record
For each CI RICE during
complying with initial performance testing the following
the requirement to . . . operating
limitations . . .
Reduce CO emissions
and using an oxidation The pressure drop across the catalyst and the
catalyst; temperature at the catalyst inlet.
OR The temperature for the catalyst inlet must be
Limit the concentration greater than or equal to 450 °F and less than or
of CO in the RICE equal to 1350 'F. The Permittee may petition the
exhaust by using an director of DAQ pursuant to the requirements of
oxidation catalyst 40 CFR 63.8(f)for a different temperature range.
Reduce CO emissions
and not using an
oxidation catalyst;
Or Comply with any operating limitations approved
Limit the concentration y the DAQ Regional Supervisor.
of CO in the RICE
exhaust and not using an
oxidation catalyst

Permit No. 07645R07
Page 6
Per 40 CFR 63.6620(f), if complying with the emission limitation to reduce
CO in the exhaust without using an oxidation catalyst the Permittee shall
petition the DAQ Regional Supervisor for operating limitations to be
established during the initial performance test and continuously monitored
thereafter, or for approval of no operating limitation. The Permittee shall not
conduct the initial performance test until after the petition has been approved
by the Regional Supervisor. The petition must include the information
described in 40 CFR 63.6620(g) or.(h).
iii. Per 40 CFR 63.6620(i),the engine percent load during a performance test
must be determined by documenting the calculations, assumptions, and
measurement devices used to measure or estimate the percent load in a
specific application. A written report of the average percent load
determination must be included in the notification of compliance status. The
following information must be included in the written report: the engine
model number,the engine manufacturer,the year of purchase,the
manufacturer's site-rated brake horsepower,the ambient temperature,
pressure, and humidity during the performance test, and all assumptions that
were made to estimate or calculate percent load during the performance test
must be clearly explained. If measurement devices such as flow meters,
kilowatt meters,beta analyzers, stain gauges, etc. are used,the model number
of the measurement device, and an estimate of its accuracy in percentage of
true value must be provided.
iv. The Permittee shall perform such testing in accordance with 40 CFR 63.6645
and 15A NCAC 2D .2600 (see GENERAL EMISSIONS TESTING AND
REPORTING REQUIREMENTS in Section B. of this Air Permit). The
procedures are outlined below:
A. The Permittee shall notify DAQ in writing of their intent to conduct
the performance test and submit a completed Protocol Submittal Form
to the DAQ Regional Supervisor at least 60 days before the scheduled
performance test in accordance with 40 CFR 63.6645(g) and 40 CFR
63.7(b)(1).
B. In the event the Permittee is unable to conduct the performance test
on the date specified in the notification described in the preceding
paragraph due to unforeseeable circumstances'beyond the Permittee's
control,the Permittee shall notify DAQ as soon as practicable and
without delay prior to the scheduled performance test date and specify
when the performance test is rescheduled. This notification of delay in
conducting the performance test shall not relieve the Permittee of
legal responsibility for compliance with any applicable provisions of
40 CFR Part 63 or with any other applicable Federal, State, or local
requirement,nor will it prevent DAQ from implementing or enforcing
40 CFR Part 63 or any other action under the Clean Air Act. [40 CFR
63.7(b)(2)l

Permit No. 07645R07
Page 7
C. The Permittee shall submit two copies of the test report to the DAQ.
The test report shall be submitted to the Regional Supervisor-DAQ
not later than 60 days after completion of testing. The Permittee may
request an extension to submit the final test report. The DAQ
Regional Supervisor will approve an extension request if it is
determined that the extension request is a result of actions beyond the
control of the Permittee. The test report shall contain at a minimum
the following information:
1. a description of the training and air testing experience of the
person directing the test;
II. a certification of the test results by the sampling team leader
and facility representative;
III. a summary of emissions results and text detailing the
objectives of the testing program, the applicable state and
federal regulations, and conclusions about the testing and
compliance status of the emission source(s);
IV. a detailed description of the tested emission source(s),process
flow diagrams, engineering drawings, and sampling location
schematics should be included as necessary;
V. all field, analytical, and calibration data necessary to verify
that the testing was performed as specified in the applicable
test methods;
VI. example calculations for at least one test run using equations
in the applicable test methods and all test results including
intermediate parameter calculations.
D. The testing requirement(s) shall be considered satisfied only upon
written approval of the test results by the DAQ.
E. The DAQ will review emission test results with respect exclusively to
the specified testing objectives as proposed by the Permittee and
approved by the DAQ.

Permit No. 07645R07
Page 8
d. Initial Compliance Demonstration - Pursuant to 40 CFR 63.6630(a), initial
compliance for each existing,non-emergency,non-black start,compression ignition
reciprocating internal combustion engine greater than 500 brake horsepower is
provided in Table 5 of 40 CFR 63 Subpart ZZZZ and shall be demonstrated as
follows:
For each CI RICE
complying with the The Permittee will demonstrate initial compliance if. . .
requirement to . . .
i. The average reduction of emissions of CO determined from the initial
educe CO emissions and performance test achieves the required CO percent reduction; and
sing parameter monitoring system:an oxidation catalyst,and ii. The Permittee has installed a CPMS to continuously monitor catalyst
using a continuous inlet temperature according to the requirements in §63.6625(b); and
(CPMS) iii. The Permittee has recorded the catalyst pressure drop and catalyst
inlet temperature during the initial performance test.
i. The average CO concentration determined from the initial
performance test is less than or equal to the CO emission limitation;
and
Limit the concentration of
CO, using an oxidation ii. The Permittee has installed a CPMS to continuously monitor catalyst
catalyst, and using a CPMS inlet temperature according to the requirements in §63.6625(b); and
iii. The Permittee has recorded the catalyst pressure drop and catalyst
inlet temperature during the initial performance test.
i. The average reduction of emissions of CO determined from the initial
performance test achieves the required CO percent reduction; and
Reduce CO emissions and ii. The Permittee has installed a CPMS to continuously monitor
of using.an oxidation operating parameters approved by the Administrator(if any) according
catalyst to the requirements in §63.6625(b); and
iii. The Permittee has recorded the approved operating parameters (if
;any) during the initial performance test.
i. The average CO concentration determined from the initial
performance test is less than or equal to the CO emission limitation;
and
Limit the concentration of ii. The Permittee has installed a CPMS to continuously monitor
CO and not using an operating parameters approved by the Administrator (if any) according
xidation catalyst to the requirements in §63.6625(b); and
iii. The Permittee has recorded the approved operating parameters (if
any) during the initial performance test.

Permit No. 07645R07
Page 9
_._.. .. __ .__.. ....
For each CI RICE
complying with the The Permittee will demonstrate initial compliance if. . .
reduirement to . . .
i. The Permittee has installed a CEMS to continuously monitor CO and
either 02 or CO2 at both the inlet and outlet of the oxidation catalyst
according to the requirements in §63.6625(a); and
ii. The Permittee has conducted a performance evaluation of the CEMS
Reduce CO emissions and using PS 3 and 4A of 40 CFR part 60,appendix B; and
sing a CEMS
iii. The average reduction of CO calculated using §63.6620 equals or
exceeds the required percent reduction. The initial test comprises the
first 4-hour period after successful validation of the CEMS.
Compliance is based on the average percent reduction achieved during
he 4-hour eriod.
i. The Permittee has installed a CEMS to continuously monitor CO and
either 02 or CO2 at the outlet of the oxidation catalyst according to the
requirements in §63.6625(a); and .
ii. The Permittee has conducted a performance evaluation of the CEMS
Limit the concentration of using PS 3 and 4A of 40 CFR part 60,appendix B; and
CO and using a CEMS
iii. The average concentration of CO calculated using §63.6620 is less
than or equal to the CO emission limitation. The initial test comprises
he first 4-hour period after successful validation of the CEMS.
Compliance is based on the average concentration measured during the
-hour period.
e. Operating Requirements - Pursuant to 40 CFR 63.6603(a), 63.6604, and
63.6625(b), (g), and(h),the Permittee shall:
i. Minimize the engine's time spent at idle during startup and minimize the
engine's startup time to a period needed for appropriate and safe loading of
the engine, not to exceed 30 minutes, after which time the non-startup
emission limitations apply.
ii. If the engine is not equipped with a closed crankcase ventilation system the
Permittee shall:
A. Install a closed crankcase ventilation system that prevents crankcase
emissions from being emitted; or
B. Install an open crankcase filtration emission control system that
reduces emissions from the crankcase by filtering the exhaust stream
to remove oil mist, particulates, and metals.

Permit No. 07645R07
Page 10
iii. Follow the manufacturer's maintenance requirements for operating and
maintaining the open or closed crankcase ventilations system and replacing
crankcase filters.
iv. If the engine displacement is less than 30 liters per cylinder then the
Permittee must use diesel fuel that meets the requirements in 40 CFR
80.510(b) for nonroad diesel fuel.
Sulfur content 15 ppm maximum.
Cetane index or minimum cetane index of 40;or
Aromatic content A maximum aromatic content of 35 volume percent.
f. Monitoring Requirements -
i. Pursuant to 40 CFR 63.6603(a),the Permittee shall meet each operating
limitation as follows:
For each CI RICE The Permittee shall meet the following operating
complying with
the requirement to . . . limitation . . .
Reduce CO emissions and a. maintain the catalyst so that the pressure drop across the catalyst
sing an oxidation catalyst; does not change by more than 2 inches of water from the pressure
drop across the catalyst that was measured during the initial
OR performance test; and
Limit the concentration of b. maintain the temperature of the RICE exhaust so that the catalyst
CO in the RICE exhaust and 'inlet temperature is greater than or equal to 450 °F and less than or
sing an oxidation catalyst equal to 1350 'F. The Permittee may petition the director of DAQ
pursuant to the requirements of 40 CFR 63.8(g) for a different
temperature range.
Reduce CO emissions and
of using an oxidation
catalyst;
OR Comply with any operating limitations approved by the Regional
Limit the concentration of Supervisor- DAQ.
CO in the RICE exhaust and
of using an oxidation
catalyst

Permit No. 07645R07
Page 11
ii. Pursuant to 63.6625(b), if the Permittee is required to install a continuous
parameter monitoring system (CPMS) as specified in the table in Section d.
"Initial Compliance Demonstration" above, the Permittee shall install,
operate, and maintain each CPMS according to the following requirements:
A. The Permittee shall prepare a site-specific monitoring plan that
addresses the monitoring system design,data collection, and the .
quality assurance and quality control elements outlined below and in
§63.8(d).As specified in §63.8(f)(4),the Permittee may request
approval of monitoring system quality assurance and quality control
procedures alternative to those specified below in the site-specific
monitoring plan.
1. The performance criteria and design specifications for the
monitoring system equipment, including the sample interface,
detector signal analyzer, and data acquisition and calculations;
11. Sampling interface (e.g., thermocouple) location such that the
monitoring system will provide representative measurements;
III. Equipment performance evaluations, system accuracy audits,
or other audit procedures;
IV. Ongoing operation and maintenance procedures in accordance
with provisions in 40 CFR 63.8(c)(1)(ii)and (c)(3); and
V. Ongoing reporting and recordkeeping procedures in
accordance with provisions in 40 CFR 63.10(c), (e)(1), and
(e)(2)(i)•
B. The Permittee shall install, operate,and maintain each CPMS in
continuous operation according to the procedures in the site-specific
monitoring plan.
C. The CPMS must collect data at least once every 15 minutes.
D. A CPMS for measuring temperature range,the temperature sensor
must have a minimum tolerance of 2.8 degrees Celsius (5 degrees
Fahrenheit) or 1 percent of the measurement range,whichever is
larger.
E. The Permittee shall conduct the CPMS equipment performance
evaluation, system accuracy audits,or other audit procedures
specified in the site-specific monitoring plan at least annually.
F. The Permittee shall conduct a performance evaluation of each CPMS
in accordance with the site-specific monitoring plan.

Permit No. 07645R07
Page 12
iii. Pursuant to 63.6625(a), if the Permittee elects to install a continuous
emissions monitor(CEMS) as specified in the table in Section d. Initial
Compliance Demonstrations above,the Permittee shall install, operate, and
maintain a CEMS to monitor CO and either oxygen or CO2 according to the
requirements below. If the Permittee is meeting a requirement to reduce CO
emissions, the CEMS must be installed at both the inlet and outlet of the
control device. If the Permittee is meeting a requirement to limit the
concentration of CO,the CEMS shall be installed at the outlet of the control
device.
A. Each CEMS must be installed,operated, and maintained according to
the applicable performance specifications of 40 CFR part 60,
appendix B.
B. The Permittee shall conduct an initial performance evaluation and an
annual relative accuracy test audit(RATA)of each CEMS according
to the requirements in 40 CFR 63.8 and according to the applicable
performance specifications of 40 CFR part 60, appendix B as well as
daily and periodic data quality checks in accordance with 40 CFR part
60, appendix F,procedure 1.
C. As specified in 40 CFR 63.8(c)(4)(ii), each CEMS must complete a
minimum of one cycle of operation(sampling, analyzing, and data
recording) for each successive 15-minute period. The Permittee shall
have at least two data points, with each representing a different 15-
minute period,to have a valid hour of data.
D. The CEMS data must be reduced as specified in 40 CFR 63.8(g)(2)
and recorded in parts per million or parts per billion(as appropriate
for the applicable limitation) at 15 percent oxygen or the equivalent
CO2 concentration.
g. Continuous Compliance Demonstration -Pursuant to 40 CFR 63.6640(a), and
Table 6 of 40 CFR 63 Subpart ZZZZ, continuous compliance for each existing,non-
emergency,non-black start,compression ignition reciprocating internal combustion
engine greater than 500 brake horsepower shall be demonstrated as follows:
Complying with the The Permittee shall demonstrate continuous compliance by . . .
requirement to . . .
i. Conducting performance tests every 8,760 hours or 3 years,
whichever comes first, for CO to demonstrate that the required CO
Reduce CO emissions, or percent reduction is achieved or that the emissions remain at or
limit the concentration of CO
below the CO concentration limit(') ; and
in the RICE exhaust,and ii. Collecting the catalyst inlet temperature data according to
sing an oxidation catalyst §63.6625(b); and
iii. Reducing these data to 4-hour rolling averages; and

Permit No. 07645R07
Page 13
Complying with the
The Permittee shall demonstrate continuous compliance by . . .
requirement to . . .
iv. Maintaining the 4-hour rolling averages within the operating
limitations for the catalyst inlet temperature; and
. Measuring the pressure drop across the catalyst once per month
and demonstrating that the pressure drop across the catalyst is within
he operating limitation established during the performance test.
If the reciprocating internal combustion engine is limited use (ie,
operates less than 100 hours per year), then demonstrate
compliance by conducting the same performance testing as item "i"
above every 8,760 hours or 5 Ve whichever comes first. A limited
use engine must also comply with items "ii"through "v"above.
i. Collecting the monitoring data according to §63.6625(a), reducing
he measurements to 1-hour averages, calculating the percent
eduction or concentration of CO emissions according to §63.6620;
and
Reduce CO emissions or limit ii. Demonstrating that the catalyst achieves the required percent
he concentration of CO in the' eduction of CO emissions over the 4-hour averaging period,or that
RICE exhaust, and using a he emission remain at or below the CO concentration limit; and
CEMS
iii. Conducting an annual RATA of the CEMS using PS 3 and 4A of
0 CFR part 60, appendix B, as well as daily and periodic data
quality checks in accordance with 40 CFR part 60, appendix F,
rocedure 1.
i. Conducting performance tests every 8,760 hours or 3 years,
whichever comes first, for CO to demonstrate that the required CO
percent reduction is achieved or that the emissions remain at or
below the CO concentration limit( ) ; and
ii. Collecting the approved operating parameter(if any) data
according to §63.6625(b); and
Reduce CO emissions, or iii. Reducing these data to 4-hour rolling averages; and
limit the concentration of CO
in the RICE exhaust, and not iv. Maintaining the 4-hour rolling averages within the operating
sing an oxidation catalyst limitations for the operating parameters established during the
performance test.
(2) If the reciprocating internal combustion engine is limited use (ie,
operates less than 100 hours per year) then demonstrate compliance
by conducting the same performance testing as item "i"above every
8,760 hours or 55 years, whichever comes first. A limited use engine
must also comply with items "ii"through "iv"above

Permit No. 07645R07
Page 14
h. Recordkeeping Requirements - Pursuant to 40 CFR 63.6655,the Permittee shall
keep the following records (in written or electronic format). The records must be
maintained for live (5) years.
i. A copy of each notification and report submitted to comply with 40 CFR 63
Subpart ZZZZ.
ii. Occurrence and duration of each malfunction of operation(i.e., process
equipment)or the air pollution control and monitoring equipment.
iii. Performance tests and performance evaluations as required in 40 CFR
63.1 0(b)(2)(viii).
iv. All required maintenance performed on the air pollution control and
monitoring equipment.
V. Actions taken during periods of malfunction to minimize emissions in
accordance with 40 CFR 63.6605(b), including corrective actions to restore
malfunctioning process and air pollution control and monitoring equipment to
its normal or usual manner of operation.
vi. Pursuant to 40 CFR 63.6655(d), all records required to show continuous
compliance with each emission or operating limitations listed in Section g.
above.
vii. Pursuant to 40 CFR 63.6655(b), for each CEMs or CPMs,the Permittee shall
maintain the following records:
A. Records described in 40 CFR 63.10(b)(2)(vi)through(xi).
B. Previous (i.e., superseded)versions of the site-specific monitoring
plan as required in 40 CFR 63.8(d)(3).
C. Requests for alternatives to the relative accuracy test for CEMS or
CPMS as required in 40 CFR 63.8(f)(6)(i), if applicable.
i. Reporting Requirements -
i. Pursuant to 40 CFR 63.6645(h), for each initial performance test required in
Section d. above,the Permittee is required to submit a Notification of
Compliance Status before the close of business on the 60th day following the
initial performance test according to 40 CFR 63.9(h)(2)(ii). For each
subsequent performance test conducted according to the requirements of
Section g above,the Permittee must submit the Notification of Compliance
Status, including the performance test results, before the close of business on
the 60th day following the completion of the performance test according to 40
CFR 63.10(d)(2).

Permit No. 07645R07
Page 15
ii. Pursuant to 40 CFR 63.6650,the Permittee shall submit a semi-annual report
by January 31 of each calendar year for the preceding six-month period
between July and December and by July 31 of each calendar year for the
preceding six-month period between January and June. If the RICE is
classified as "limited use" (operation limited to less than 100 hours per year)
and there is no deviation,then the report shall be submitted annually by
January 31 of each calendar year. The report shall contain the following:
A. Company name and address.
B. Statement by a responsible official,with that official's name,title, and
signature, certifying the accuracy of the content of the report.
C. Date of report and beginning and ending dates of the reporting period.
D. If a malfunction occurred during the reporting period,the compliance
report must include the number, duration, and a brief description for
each time of malfunction which occurred during the reporting period
and which caused or may have caused any applicable emission
limitation to be exceeded. The report must also include a description
of actions taken during a malfunction of an affected source to
minimize emissions in accordance with 63.6650(b), including actions
taken to correct a malfunction.
E. If there is no deviation(s),then provide a statement indicating that no
deviation(s) occurred during the reporting period.
F. If there is a deviation(s) during the reporting period, then provide
information in 40 CFR 63.6650(d)as follows:
I. . total operating time of the RICE at which the deviation
occurred during the reporting period.
II. the number, duration, and cause of deviation(including
unknown cause, if applicable), as applicable, and the
corrective action taken.
iii. If there are no periods during which the Continuous Monitoring System
(CMS -including CEMS and CPMS) was out of control, then a statement
that there were no periods during which the CMS was out of control during
the reporting period.
iv. If there were periods during which the CMS (including CEMS and CPMS)
was out-of-control:
A. The date and time that each malfunction started and stopped.
B. The date,time, and duration that each CMS was inoperative, except
for zero (low-level) and high-level checks.

Permit No. 07645R07
Page 16
C. The date,time, and duration that each CMS was out-of-control,
including the information in §63.8(c)(8).
D. The date and time that each deviation started and stopped, and
whether each deviation occurred during a period of malfunction or
during another period.
E. A summary of the total duration of the deviation during the reporting
period, and the total duration as a percent of the total source operating
time during that reporting period.
F. A breakdown of the total duration of the deviations during the
reporting period into those that are due to control equipment
problems,process problems, other known causes, and other unknown
causes.
G. A summary of the total duration of CMS downtime during the
reporting period,and the total duration of CMS downtime as a percent
of the total operating time of the RICE at which the CMS downtime
occurred during that reporting period.
H. An identification of each parameter and pollutant(CO or
formaldehyde)that was monitored at the RICE.
I. A brief description of the RICE.
J. A brief description of the CMS.
K. The date of the latest CMS certification or audit.
L. A description of any changes in CMS, processes, or controls since the
last reporting period.
11. LIMITATION TO AVOID 15A NCAC 2 .1402 APPLICABILITY - In accordance with
15A NCAC 2Q .0317,to comply with this permit and avoid the applicability of 15A NCAC
2D .1402 "Applicability," as requested by the Permittee,emissions shall be limited as
follows:
Stationary internal combustion engines less than 2400 brake horsepower can operate no
more than the following hours between May 1 and September 30:
(A) for diesel engines:
t= 833,333 /ES
(B) for natural gas-fired engines:
t=700,280/ES
where t equals time in hours and ES equals engine size in horsepower.

Permit No. 07645R07
Page 17
a. Operations Restrictions - To ensure emissions do not exceed the limitations above,
the following restrictions shall apply:
i. The engines (ID Nos. 1 through 6) shall be limited to 361 hours of operation
each during the ozone season(May 1 through September 30).
b. Recordkeeping_Requirements
i. The Permittee shall record monthly and total for each annual ozone season the
following:
A. The number of hours that each engine operated.
c. Reporting Requirements - By October 30 of each year,regardless of the actual
emissions,the Permittee shall submit the following:
i. The hours that each engine operated during the ozone season(May 1 through
September 30).
12. LIMITATION TO AVOID 15A NCAC 2Q .0501 -Pursuant to 15A NCAC 2Q .0315
"Synthetic Minor Facilities," to avoid the applicability of 15A NCAC 2Q .0501 "Purpose of
Section and Requirement for a Permit," as requested by the Permittee, facility-wide
emissions shall be less than the following:
Pollutant Emission Limit
(Tons per consecutive 12-month period)
S02 100 _..
NOx 11, 100
CO 100
a. Operations Restrictions - To ensure emissions do not exceed the limitations above,
the following restrictions shall apply:
i. The facility-wide engine-hours of operation shall be less than 3360 hours per
consecutive 12-month period when burning fuel that is 0.5 percent by weight
sulfur.
b. RecordkeepingRequirements
i. The Permittee shall record monthly and total annually the following:
A. The facility-wide engine-hours of operation.
B. The facility-wide S02,NOx, and CO emissions.

Permit No. 07645R07
Page 18
c. Reporting Requirements - Within 30 days after each calendar year,regardless of the
actual emissions,the Permittee shall submit the following:
i. emissions and/or operational data listed below. The data should include
monthly and 12 month totals for the previous 12 month period.
A. The facility-wide engine hours of operation.
B. The facility-wide S02, NOx, and CO emissions.
13. LIMITATION TO AVOID 15A NCAC 2D .0530 "PREVENTION OF SIGNIFICANT
DETERIORATION" - In accordance with 15A NCAC 2Q .0317,to comply with this permit
and avoid the applicability of 15A NCAC 21) .0530 "Prevention of Significant
Deterioration," as requested by the Permittee, emissions shall be limited as follows:
Affected Source s Pollutant Emission Limit Tons Per Consecutive 12 month Period
Facility Wide Ox j 250
`Facility Wide CO 250
B. GENERAL CONDITIONS AND LIMITATIONS
1. In accordance with G.S. 143-215.108(c)(1), TWO COPIES OF ALL DOCUMENTS,
REPORTS, TEST DATA, MONITORING DATA,NOTIFICATIONS, REQUESTS FOR
RENEWAL,AND ANY OTHER INFORMATION REQUIRED BY THIS PERMIT shall
be submitted to the:
Regional Supervisor
North Carolina Division of Air Quality
Mooresville Regional Office
610 East Center Avenue, Suite 301
Mooresville,NC 28115
704-663-1699
For identification purposes,each submittal should include the facility name as listed on the
permit,the facility identification number, and the permit number.
i
I
2. RECORDS RETENTION REQUIREMENT - In accordance with 15A NCAC 2D .0605,
any records required by the conditions of this permit shall be kept on site and made available
to DAQ personnel for inspection upon request. These records shall be maintained in a form
suitable and readily available for expeditious inspection and review. These records,must be
kept on site for a minimum of 2 years,unless another time period is otherwise specified.
3. ANNUAL FEE PAYMENT-Pursuant to 15A NCAC 2Q .0203(a),the Permittee shall pay
the annual permit fee within 30 days of being billed by the DAQ. Failure to pay the fee in a
timely manner will cause the DAQ to initiate action to revoke the permit.

Permit No. 07645R07
Page 19
4. EQUIPMENT RELOCATION-In accordance with 15A NCAC 2Q .0301, anew air permit
shall be obtained by the Permittee prior to establishing, building, erecting, using, or
operating the emission sources or air cleaning equipment at a site or location not specified in
this permit.
5. REPORTING REQUIREMENT- In accordance with 15A NCAC 2Q .0309, any of the
following that would result in previously unpermitted, new, or increased emissions must be
reported to the Regional Supervisor, DAQ:
a. changes in the information submitted in the application regarding facility emissions;
b. changes that modify equipment or processes of existing permitted facilities; or
c. changes in the quantity or quality of materials processed.
If appropriate,modifications to the permit may then be made by the DAQ to reflect any
necessary changes in the permit conditions. In no case are any new or increased emissions
allowed that will cause a violation of the emission limitations specified herein.
6. In accordance with 15A NCAC 2Q .0309,this permit is subject to revocation or
modification by the DAQ upon a determination that information contained in the application
or presented in the support thereof is incorrect, conditions under which this permit was
granted have changed, or violations of conditions contained in this permit have occurred. In
accordance with G.S. 143-215.108(c)(1), the facility shall be properly operated and
maintained at all times in a manner that will effect an overall reduction in air pollution.
Unless otherwise specified by this permit,no emission source may be operated without the
concurrent operation of its associated air cleaning device(s) and appurtenances.
7. In accordance with G.S. 143-215.108(c)(1),this permit is nontransferable by the Permittee.
Future owners and operators must obtain a new air permit from the DAQ.
8. In accordance with G.S. 143-215.108(c)(1), this issuance of this permit in no way absolves
the Permittee of liability for any potential civil penalties which may be assessed for
violations of State law which have occurred prior to the effective date of this permit.
9. In accordance with G.S. 143-215.108(c)(1),this permit does not relieve the Permittee of the
responsibility of complying with all applicable requirements of any Federal, State, or Local
water quality or land quality control authority.
10. In accordance with 15A NCAC 2D .0605,reports on the operation and maintenance of the
facility shall be submitted by the Permittee to the Regional Supervisor, DAQ at such
intervals and in such form and detail as may be required by the DAQ. Information required
in such reports may include,but is not limited to,.process weight rates, firing rates,hours of
operation, and preventive maintenance schedules.

Permit No. 07645R07
Page 20
11. A violation of any term or condition of this permit shall subject the Permittee to enforcement
pursuant to G.S. 143-215.114A, 143-215.114B, and 143-215.114C, including assessment of
civil and/or criminal penalties.
12. Pursuant to North Carolina General Statute 143-215.3(a)(2),no person shall refuse entry or
access to any authorized representative of the DAQ who requests entry or access for
purposes of inspection, and who presents appropriate credentials,nor shall any person
obstruct,hamper, or interfere with any such representative while in the process of carrying
out his official duties. Refusal of entry or access may constitute grounds for permit
revocation and assessment of civil penalties.
13. In accordance with G.S. 143-215.108(c)(1),this permit does not relieve the Permittee of the
responsibility of complying with any applicable Federal, State, or Local requirements
governing the handling, disposal, or incineration of hazardous, solid, or medical wastes,
including the Resource Conservation and Recovery Act(RCRA) administered by the
Division of Waste Management,
14. PERMIT RETENTION REQUIREMENT-In accordance with 15A NCAC 2Q .0110,the
Permittee shall retain a current copy of the air permit at the site. The Permittee must make
available to personnel of the DAQ,upon request,the current copy of the air permit for the
site.
15. CLEAN AIR ACT SECTION 112(r)REQUIREMENTS- Pursuant to 15A NCAC 2D .2100
"Risk Management Program," if the Permittee is required to develop and register a risk
management plan pursuant to Section 112(r) of the Federal Clean Air Act, then the
Permittee is required to register this plan with the USEPA in accordance with 40 CFR Part
68.
16. PREVENTION OF ACCIDENTAL RELEASES - GENERAL DUTY - Pursuant to Title I
Part A Section 112(r)(1) of the Clean Air Act "Hazardous Air Pollutants - Prevention of
Accidental Releases -Purpose and General Duty," although a risk management plan may not
be required, if the Permittee produces,processes, handles, or stores any amount of a listed
hazardous substance,the Permittee has a general duty to take such steps as are necessary to
prevent the accidental release of such substance and to minimize the consequences of any
release. This condition is federally-enforceable only.
17. GENERAL EMISSIONS TESTING AND REPORTING REQUIREMENTS - If emissions
testing is required by this permit, or the DAQ, or if the Permittee submits emissions testing
to the DAQ in support of a permit application or to demonstrate compliance, the Permittee
shall perform such testing in accordance with 15A NCAC 2D .2600 and follow all DAQ
procedures including protocol approval, regional notification, report submittal, and test
results approval.

Permit No. 07645R07
Page 21
Permit issued this the 12'' of December, 2017.
NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION
Bruce J. ngle
Regional Supervisor
By Authority of the Environmental Management Commission
Air Permit No. 07645R07

ATTACHMENT to Permit No. 07645R07, December 12, 2017
Insignificant/Exempt Activities
Source Exemption Source of Source of Title V
Regulation TAPs? Pollutants?
IES-1 -No. 2 fuel oil aboveground 2Q .0102 (g)(4) No No
storage tank (10,000 gallons capacity)
IES-2 -No. 2 fuel oil aboveground Q .0102(g)(4) No No
storage tank(10,000 gallons capacity)
__ ..............
IES-3 -No. 2 fuel oil aboveground day 2Q .0102 (g)(4) No No
tank(1,000 gallons capacity)
IES-4 -No. 2 fuel oil aboveground day 2Q .0102(g)(4) No No
tank(1,000 gallons capacity)
IES-5 -No. 2 fuel oil aboveground day 2Q 0102 (g)(4) No No
tank(1,000 gallons capacity)
IES-6 -motor oil aboveground tank(500 2Q 0102(g)(4) No No
gallons capacity)
IES-7 -waste motor oil aboveground 2Q 0102(g)(4) No No
ank(500 gallons capacity)
1. Because an activity is exempted from being required to have a permit or permit modification
does not mean that the activity is exempted from an applicable requirement or that the owner
or operator of the source is exempted from demonstrating compliance with any applicable
requirement..
2. When applicable, emissions from stationary source activities identified above shall be
included in determining compliance with the permit requirements for toxic air pollutants
under 15A NCAC 2D .1100 "Control of Toxic Air Pollutants" or 2Q .0711 "Emission Rates
Requiring a Permit."
3. Sample permit conditions showing the regulatory requirements for exempt sources subject to
NESHAP,NSPS,and NCAC rules may be found here: littp://www.ncair.org/permits/insig/