AQ_F_0400050_20131209_ST_RvwLtr

NCDERR
North Carolina Department of Environment and Natural Resources
Division of Air Quality
Pat McCrory Sheila C. Holman John E. Skvarla, III
Governor Director Secretary
9 December 2013
Mr. Lee Ragsdale
Vice President, Asset Management
North Carolina Electric Membership Corporation
3400 Sumner Boulevard
Raleigh,North Carolina 27616
SUBJECT: Central Office Review of Source Test Results—ID Nos.ES-1, 2, 3, 4, 5, 6 -A& B
North Carolina Electric Membership Corporation—
NCEMC Anson Plant, Air Permit 09492 T08
Lilesville,NC Anson County 6/04-00050
Dear Mr. Ragsdale:
The Division has reviewed your source test reports that were received by our Central
Office on 30 August 2012. These reports were from the nitrogen oxides testing of gas turbines
ES-1, 2, 3, 4, 5, 6 -A & B, which was conducted on 2 through 27 April of 2012. On 2 December
2013, this Division determined that the subject testing performed at your facility were acceptable
source tests. The reviews indicate that compliance with Air Permit No. 09492 T08 is indicated
for these sources. Please note that the Division did not review the predictive emissions
monitoring curves for 40 CFR 75 Appendix E. included in your test reports, and that additional
information about the emissions curve data is available in the test reports. Copies of the
determination memorandums issued by Ms. Shannon Vogel, of the N.C. Division of Air Quality,
Stationary Source Compliance Branch, are attached.
Should you have any questions regarding this matter, please contact Mr. Neil Joyner,
Environmental Specialist, at(910) 433-3300, in the Fayetteville Regional Office.
cerely,
Steven F. Vozzo
Regional Air Quality Supervisor
Fayetteville Regional Office
SFV\caj
Attachment-DAQ RCO reviews(6)dated 2 December 2013 [2012-052,223,224,225,226,228 ST]
cc: ❑ FRO Files(w/attachments)
Fayetteville Regional Office—Division of Air Quality
225 Green Street,Suite 714,Fayetteville,North Carolina 28301-5095
Main Phone: [phone]\DAQ Fax:[phone] \ Internet: http://www.ncair,org
An Equal opportunity\Afinnative Action Employer—Made in part by Recycled Paper

RECEIVED
DIVISION OF AIR QUALITY DEC ® 4 2013
December 2, 2013
MEMORANDUMDENR-FAYETTEVILLE REGIONAL OFFI
To: Steven Vozzo,Fayetteville Regional Office
From: Shannon M.Vogel, Stationary Source Compliance BranchV o
Subject: North Carolina Electric Membership Corporation NCEMC—Anson Plant
Lilesville,Anson County,North Carolina
Facility ID 0400050, Permit No. 09492T08
Nitrogen Oxides Emissions Testing of Unit 1Turbines(ES 1-A and ES1-B)
Performed April 24 through April 27,2012 by
Source Testing and Consulting Services,Inc. (STACS)
Tracking No.201M52st
STACS performed EPA Method 7E/20 nitrogen oxide(NOx)emissions testing of Unit 1 on April 24,25,
26, and 27,2012. Testing is required 20 calendar quarters following initial certification for 40 CFR 75
Appendix E in order to"derive a NOx emission rate versus heat input correlation curve." The report
stated"initial Appendix E certification testing occurred in the second quarter of 2007." SSCB has
reviewed the test results with respect to the applicable emissions limits as discussed below.
Unit 1 consists of two Pratt&Whitney FT8 Swift-Pac simple-cycle gas turbines,ESl-A and ESl-B, and
one generator. Emissions from ES 1-A and ES 1-B are controlled by water injection system CD-1. The
turbines were tested at four loads for oil firing and four loads for natural gas firing.
40 CFR 60 Subpart KKKK Standards of Performance for Stationary Gas Turbines and 15A NCAC 2Q
.0317 Avoidance Conditions for 15A NCAC 2D .0530 Prevention of Significant Deterioration (PSD)
apply. 60 Subpart KKKK limits NOx emissions to 74 parts per million corrected to 15% oxygen
(ppm@15%o 02)when firing No.2 fuel oil and 25 ppm@15%Oz while firing natural gas. In order to
avoid the applicability of PSD,the permit limits NOx emissions from ESl-A and ES 1-B through ES6-A
and ES6-B to 245 tons pet consecutive 12 months. The test results limits are tabulated below.
yl NOx Emissions Test A R 2012—Natural Gas Firing
Test Load Test Results, m 15%Oz 60 Subpart KKKK Compliance
Date ESl-A ESl-B Limit,ppm 15% Oz
4/24/12 Base 22.2 21.4 Yes
4/24/12 83% 21.0 21.3 25 ppm@15% Oz Yes
4/25/12 670A 21.9 21.7 Yes
4/25/12 50% 22.3 23.2 Yes
NOx Emissions Test A ril 2012—No. 2 Fuel Oil Firing
Test Load Test Results, m 15%Oz . 60 Subpart KKKK Compliance
Date ES1-A ESl-B Limit,ppm 15 02
4/26/12 Base 37.8 36.3 Yes
4/26/12 83% 38.6 37.9 74 ppm@15%o 02 Yes
4/26/12 67% 38.6 38.6 Yes
4/27/12 50% 39.9 39.5 Yes

Steven Vozzo
December 2,2013
NCEMC Anson Unit 1
Page 2
The test report included the predictive emissions monitoring curve for 40 CFR 75 Appendix E. SSCB did
not review this aspect of the NOx emissions report. Additional information about the emissions curve
data is available in the test report but is not included in this memorandum. If you have questions
regarding the results of this review,please contact me at(919)707-8416 or shannon.vo [e-mail].
cc: Central Files,Richmond County
IBEAM Documents-7700082{Tracking No. 2012-052st)

RECEIVED
DIVISION OF AIR QUALITY ®�� e ��q
December 2, 2013
MEMORANDUM DENR-FAYETTEVILLE REGIONAL OFF
To: Steven Vozzo,Fayetteville Regional Office iq
From: Shannon M.Vogel, Stationary Source Compliance Branch � U
Subject: North Carolina Electric Membership Corporation NCEMC-Anson Plant
Lilesville,Anson County,North Carolina
Facility ID 0400050,Permit No. 09492TO8
Nitrogen Oxides Emissions Testing of Unit 2 Turbines(ES2-A and ES2-B)
Performed April 19 through April 23, 2012 by
Source Testing and Consulting Services,Inc. (STAGS)
Tracking No. 2012-223st
STACS performed EPA Method 7E/20 nitrogen oxide(NOx)emissions testing of Unit 2 on April 19
through 23,2012. Testing is required 20 calendar quarters following initial certificatiomfor 40 CFR 75
Appendix E in order to"derive a NOx emission rate versus heat input correlation curve." The report
stated"initial Appendix E certification testing occurred in the second quarter of 2007." SSCB has
reviewed the test results with respect to the applicable emissions limits as discussed below.
Unit 2 consists of two Pratt&Whitney FT8 Swift-Pac simple-cycle gas turbines,ES2-A and ES2-B, and
one generator. Emissions from ES2-A and ES2-B are controlled by water injection system CD-1. The
- turbines were tested at four loads for oil firing and four loads for natural gas firing.
40 CFR 60 Subpart KKKK Standards of Performance for Stationary Gas Turbines and 15A NCAC 2Q
.0317 Avoidance Conditions for 15A NCAC 2D .0530 Prevention of Significant Deterioration(PSD)
apply. 60 Subpart KKKK limits NOx emissions to 74 parts per million corrected to 15%oxygen
(ppm@15%02)when firing No. 2 fuel oil and 25 ppm@15% OZ while fu-ing natural gas. In order to
avoid the applicability of PSD,the permit limits NOx emissions from ES 1-A and ES 1-B through ES6-A
and ES6-B to 245 tons per consecutive 12 months. The test results limits are tabulated below.
- NOx Emissions Test A ri12012-Natural Gas Firing
Test Load Test Results,PPMA 15% 02 60 Subpart KKKK Compliance
Date ES2-A ES2-B Limit,ppin 15%02
4/20/12 Base 20.1 19.7 Yes
4/20/12 83% 20.2 19.3 25 ppm@15% OZ Yes
4/21/12 67/0 219 21.9 Yes
4/21/12 50% 23.6 22.5 Yes
NOx Emissions Test A 7il 2012—No.2 Fuel Oil Firing
Test Test Results, m 15% 02 60 Subpart KKKK
Date Load ES2-A ES2-B Limit,p m 15% OZ Compliance
4/19/12 Base 39.3 35.4 Yes
4/20/12 83% 39.4 35.8 74 ppm@15%OZ Yes
/0 4/23/12 67 40.6 35.1 Yes
4/23/12 50% 42.9 35.8 Yes

Steven Vozzo
December 2,2013
NCEMC Anson Unit 2
Page 2
The test report included the predictive emissions monitoring curve for 40 CFR 75 Appendix E. SSCB did
not review this aspect of the NOx emissions report. Additional information about the emissions curve
data is available in the test report but is not included in.this memorandum. If you have questions
regarding the results of this review,please contact me at(919)707-8416 or shannon.vogel(a ncdenr. ov.
cc: Central Files,Richmond County
IBEAM Documents—0400050(Tracking No. 2012-223st)

CtJ
DIVISION OF AIR QUALITY RECEIVED
December 2,2013 DEC ® 2D-13
MEMORANDUM DENR-FAYETTEVILLE REGIONAL OFFICE
_ To: Steven Vozzo,Fayetteville Regional Office Q
From: Shannon M.Vogel, Stationary Source Compliance Branch ��U
Subject: North Carolina Electric Membership Corporation NCEMC—Anson Plant
Lilesville,Anson County,North Carolina
Facility ID 0400050,Permit No. 09492TO8
Nitrogen Oxides Emissions Testing of Unit 3 Turbines(ES3-A and ES3-B)
Performed April 9 through 12, 2012 by
Source Testing and Consulting Services,hie. (STACS)
Tracking No.2012-224st
STACS performed EPA Method 7E/20 nitrogen oxide(NOx)emissions testing of Unit 3 on April 6, 7, 8,
and 9,2012. Testing is required 20 calendar quarters following initial certification for 40 CFR 75
Appendix E in order to"derive a NOx emission rate versus heat input correlation curve." The report
stated"initial Appendix E certification testing occurred in the second quarter of 2007." SSCB has
reviewed the test results with respect to the applicable emissions limits as discussed below.
Unit 3 consists of two Pratt&Whitney FT8 Swift-Pac simple-cycle gas turbines,ES3 and ES3-B, and
one generator. Emissions from ES3-A and ES3-B are controlled by water injection system CD-1. The
- turbines were tested at four loads for oil firing and four loads for natural gas firing.
40 CFR 60 Subpart KKKK Standards of Performance for Stationary Gas Turbines and 15A NCAC 2Q
.0317 Avoidance Conditions for 15A NCAC 2D .0530 Prevention of Significant Deterioration(PSD)
apply. 60 Subpart KKKK limits NOx emissions to 74 parts per million corrected to 15%oxygen
(ppm@15%OZ)when firing No.2 fuel oil and 25 ppm@15% OZ while firing natural gas. In order to
avoid the applicability of PSD,the permit limits NOx emissions from ES 1-A and ES 1-B through ES6-A
and ES6-B to 245 tons per consecutive 12 months. The test results limits are tabulated below.
NOx Emissions Test A ri12012—Natural Gas Firing
Test Load Test Results,p m 15% 02 60 Subpart KKKK Compliance
Date ES3-A ES3-B Limit, m 15/°OZ
4/10/12 Base 20.7 18.7 Yes
4/10/12 830/. ' 19.0 20.5 Yes
4/10/12 67% 17.5 18.7 25 ppm@15% 02 Yes
4/10/12 50% 22.5 22.1 Yes
NOx Emissions Test Apri12012—No. 2 Fuel Oil Firing
Test Test Results, m 15%O2 60 Subpart KKKK
Date Load ES3-A ES3-B Limit,ppm 15% OZ Compliance
4/9/12 Base 38.1 37.0 Yes
4/11/12 83°% 36.3 36.2 74 ppm@15% OZ Yes
4/11/12 67/0 36.5 34.8 Yes
4/12/12 50% 34.6 34.1 Yes

Steven Vozzo
December 2,2013
NCEMC Anson Unit 3
Page 2
The test report included the predictive emissions monitoring curve for 40 CFR 75 Appendix E. SSCB did
not review this aspect of the NOx emissions report. Additional information about the emissions curve
data is available in the test report but is not included in this memorandum. If you have questions
regarding the results of this review,please contact me at(919)707-8416 or shannon.voeel@,,ncdenr.gov.
cc: Central Files,Richmond County
IBEAM Documents—0400050(Tracking No.2012-224st)

'RE lve
DIVISION OF AIR QUALITY DEC 2013
December 2, 2013 bENR-fqY
EiiEWLLE REGIONAL OFRCE MEMORANDUM n
To: Steven Vozzo,Fayetteville Regional Office 1 1
From: Shannon M.Vogel, Stationary Source Compliance Branch AyVwl/�U/
Subject: North Carolina Electric Membership Corporation NCEMC-NAnson Plant
Lilesville,Anson County,North Carolina
Facility ID 0400050,Permit No. 09492T08
Nitrogen Oxides Emissions Testing of Unit 4 Turbines(ES4-A and ES4-B)
Performed April 13 through April 19, 2012 by
Source Testing and Consulting Services,Inc. (STACS)
Tracking No.2012-225st
STACS performed EPA Method 7E/20 nitrogen oxide(NOx)emissions testing of Unit 4 on April 13
through 19,2012. Testing is required 20 calendar quarters following initial certification for 40 CFR 75
Appendix E in order to"derive a NOx emission rate versus heat input correlation curve." The report
stated"initial Appendix E certification testing occurred in the second quarter of 2007." SSCB has
reviewed the test results with respect to the applicable emissions limits as discussed below.
Unit 4 consists of two Pratt&Whitney FT8 Swift-Pac simple-cycle gas turbines,ES4A and ES4-B,and
one generator. Emissions from ES4-A and ES4-B are controlled by water injection system CD-1. The
- turbines were tested at four loads for oil firing and four loads for natural gas firing.
40 CFR 60 Subpart KKKK Standards of Performance for Stationary Gas Turbines and 15A NCAC 2Q
.0317 Avoidance Conditions for 15A NCAC 2D .0530 Prevention of Significant Deterioration(PSD)
apply. 60 Subpart KKKK limits NOx emissions to 74 parts per million corrected to 15%oxygen
(ppm@15%02)when firing No. 2 fuel oil and 25 ppm@15%02 while firing natural gas. In order to
avoid the applicability of PSD,the permit limits NOx emissions from ESI-A and ES1-B through ES6-A
and ES6-13 to 245 tons per consecutive 12 months. The test results limits are tabulated below.
NOx Emissions Test A ri12012-Natural Gas Firing
Test Load Test Results,ppmp.15%OZ 60 Subpart KKKK Compliance
Date ES4-A ES4-13 Limit,ppm 15/o Oz
4/16/12 Base 23.1 22.3 Yes
4/17/12 83°% 22.4 21.2 25 ppm@15% OZ Yes
4/17/12 67/° 22.1 21.5 Yes
4/17/12 50% 21.2 19.9 Yes
NOx Emissions Test A ril 2012-No.2 Fuel Oil Firing
Test Load Test Results, m 15%02 60 Subpart KKKK Compliance
Date ES4-A ES4-B Limit,ppm@15/°02
4/13/12 Base 38.9 35.5 Yes
4/13/12 83% 39.9 35.8 Yes
° 74 ppm@15%OZ
4/18/12 67/0 40.4 36.0 Yes
4/18/12 50% 40.1 35.4 Yes

Steven Vozzo
December 2,2013
NCEMC Anson Unit 4
Page 2
The test report included the predictive emissions monitoring curve for 40 CFR 75 Appendix E. SSCB did
not review this aspect of the NOx emissions report. Additional information about the emissions curve
data is available in the test report but is not included in this memorandum. Nyou have questions
regarding the results of this review,please contact meat(919)707-8416 or [e-mail].
cc: Central Files,Richmond County
I13EAM Documents—0400050(Tracking No. 2012-225st)
h

6IEC1D
DIVISION OF AIR QUALITY
December 2, 2013 DEC - 4 2013
MEMORANDUM DENR-FAYETTEWLLEREGIONAL OFFICE
To: Steven Vozzo,Fayetteville Regional Office
From: Shannon M.Vogel, Stationary Source Compliance Branch U
Subject: North Carolina Electric Membership Corporation NCEMC-Anson Plant
Lilesville,Anson County,North Carolina
Facility ID 0400050, Permit No. 09492T08
Nitrogen Oxides Emissions Testing of Unit 5 Turbines(ES5-A and ES5-B)
Performed April 6 through April 9,2012 by
Source Testing and Consulting Services, Inc. (STACS)
Tracking No. 2012-226st
STACS performed EPA Method 7E/20 nitrogen oxide(NOx)emissions testing of Unit 5 on April 6,7, 8,
and 9, 2012.. Testing is.required 20 calendar quarters following initial certification for 40 CFR 75
Appendix E in order to"derive a NOx emission rate versus heat input correlation curve." The report
stated"initial Appendix E certification testing occurred in the second quarter of 2007." SSCB has
reviewed the test results with respect to the applicable emissions limits as discussed below.
Unit 5 consists of two Pratt&Whitney FT8 Swift-Pac simple-cycle gas turbines,ESSA and ES5-B, and
one generator. Emissions from ES5-A and ES5-B are controlled by water injection system CD-1. The
turbines were tested at four loads for oil firing and four loads for natural gas firing.
40 CFR 60 Subpart KKKK Standards of Performance for Stationary Gas Turbines and 15A NCAC 2Q
.0317 Avoidance Conditions for 15A NCAC 2D .0530 Prevention of Significant Deterioration (PSD)
apply. 60 Subpart KKKK limits NOx emissions to 74 parts per million corrected to 15%oxygen
(ppm@15%02)when firing No. 2 fuel oil and 25 ppm@15%Oz while firing natural gas. In order to
avoid the applicability of PSD,the permit limits NOx emissions from ESl-A and ES 1-B through ES6-A
and ES6-B to 245 tons per consecutive 12 months. The test results limits are tabulated below.
NOx Emissions Test A ril 2012-Natural Gas Firing
Test Load Test Results, m 15%Oz 60 Subpart KKKK Compliance
Date ES5-A ES5-B Limit,ppm 15/° OZ
4/6/12 Base 21.4 19.8 Yes
4/6/12 83% 20.6 20.4 25 ppm@15% O2 Yes
4/6/12 67/0 21.4 20.9 Yes
4/7/12 50% 20.9 23.6 Yes
NOx Emissions Test April 2012-No.2 Fuel Oil Firing
Test Load Test Results, m 15%OZ 60 Subpart KKKK Compliance
Date ES5-A ES5-B Limit,ppm@15/° 02
4/8/12 Base 39.6 40.4 Yes
4/8/12 83% 41.1 39.9 Yes
4/9/12 67% 39.3 38.2 74 ppm@15%OZ Yes
4/7/12 50% 37.2 39.0 Yes

Steven Vozzo
December 2,2013
NCEMC Anson Unit 5
Page 2
The test report included the predictive emissions monitoring curve for 40 CFR 75 Appendix E. SSCB did
not review this aspect of the NOx emissions report. Additional information about the emissions curve
_ data is available in the test report but is not included in this memorandum. If you have questions
regarding the results of this review,please contact me at(919) 707-8416 or shannon.vo eg�ncdenr.sov.
cc: Central Files,Richmond County
IBEAM Documents—0400050(Tracking No. 2012-226st)

C�-T
DIVISION OF AIR QUALITY RECEIVED
December 2, 2013 DEC 2013
MEMORANDUM DENR-FAYETTRILLE REGIONAL OFFICE
_ To: Steven Vozzo,Fayetteville Regional Office r
From: Shannon M.Vogel, Stationary Source Compliance Branch U
Subject: North Carolina Electric Membership Corporation NCEMC—Anson (Plant
Lilesville,Anson County,North Carolina
Facility ID 0400050,Permit No. 09492T08
Nitrogen Oxides Emissions Testing of Unit 6 Turbines(ES6-A and ES6-B)
Performed April 2 through April 5, 2012 by
Source Testing and Consulting Services, Inc. (STACS)
Tracking No. 2012-228st
STACS performed EPA Method 7E/20 nitrogen oxide(NOx)emissions testing of Unit 6 on April 2, 3, 4,
and 5,2012. Testing is required 20 calendar quarters following initial certification for 40 CFR 75
Appendix E in order to"derive a NOx emission rate versus heat input correlation curve." The report
stated"initial Appendix E certification testing occurred in the second quarter of 2007." SSCB has
reviewed the test results with respect to the applicable emissions limits as discussed below.
Unit 6 consists of two Pratt&Whitney FT8 Swift-Pac simple-cycle gas turbines,ES6A and ES6-B, and
one generator. Emissions from ES6-A and ES6-B are controlled by water injection system CD-1. The
turbines were tested at four loads for oil firing and four loads for natural gas firing.
40 CFR 60 Subpart KKKK Standards of Performance for Stationary Gas Turbines and 15A NCAC 2Q
.0317 Avoidance Conditions for 15A NCAC 2D .0530 Prevention of Significant Deterioration(PSD)
apply. 60 Subpart KKKK limits NOx emissions to 74 parts per million corrected to 15% oxygen
(ppm@15%Oz)when firing No. 2 fuel oil and 25 ppm@15%02 while firing natural gas. In order to
avoid the applicability of PSD,the permit limits NOx emissions from ES 1-A and ES 1-B through ES6-A
and ES6-13 to 245 tons per consecutive 12 months. The test results limits are tabulated below.
NOx Emissions Test A ri12012—Natural Gas Firing
Test Load Test Results, m 15% 02 60 Subpart KKKK Compliance
Date ES6-A ES6-B Limit, pm 15/o 02
4/2/12 Base 19.1 19.5 Yes
4/2/12 83% 19.9 20.6 25ppm@15%OZ Yes
4/3/12 67% 20.3 18.0 Yes
4/3/12 50% 20.9 19.0 Yes
NOx Emissions Test A r112012—No. 2 Fuel Oil Firing
Test Load Test Results, m 15%02 60 Subpart KKKK Compliance
Date ES6-A ES6-B Limit,ppm@15/o OZ
4/4/12 Base 37.7 36.3 Yes
4/4/12 83% 37.6 37.2 74 ppm@15% OZ Yes
4/5/12 67% 38.0 37.1 Yes
4/3/12 50% 37.9 36.7 Yes

Steven Vozzo
December 2,2013
NCEMC Anson Unit 6
Page 2
The test report included the predictive emissions monitoring curve for 40 CFR 75 Appendix E. SSCB did
not review this aspect of the NOx emissions report. Additional information about the emissions curve
_ data is available in the test report but is not included in this memorandum. If you have questions
regarding the results of this review,please contact me at(919)707-8416 or [e-mail].
cc: Central Files,Richmond County
IBEAM Documents—0400050 (Tracking No.2012-228st)