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NCDENR
North Carolina Department of Environment and Natural Resources
Division of Air Quality
Pat McCrory Sheila C, Holman John E. Skvarla, III
Governor Director Secretary
September 25, 2013
AMENDED
Mr. S. Lee Ragsdale
Vice President,Asset Management
North Carolina Electric Membership Corporation—Anson Plant
3400 Summer Boulevard
Raleigh,North Carolina 27616
SUBJECT: Review of 2013 First Semester Excess Emissions Report
North Carolina Electric Membership Corporation—Anson Plant
Lilesville,Anson County,North Carolina
Air Quality Permit No. 09492T07
Facility ID: 0400050
Dear Mr. Ragsdale:
This letter replaces the previous letter dated, September 19, 2013, on the same subject in
order to correct the facility name cited in the review. Thank you for the timely submittal
of the subject report dated, July 29, 2013. The Division of Air Quality has completed its
review of the continuous monitoring system summary results for peaking turbines (ID
Nos. ES1-A, ES1-B, ES2-A, ES2-B, ES3-A, ES3-B, ES4-A, ES4-B, ES5-A, ES5-B,
ES6-A and ES6-B)that operated at the Anson Plant during the first and second quarters
of 2013. The turbines are subject to 40 CFR Part 60, Subpart KKKK. NOx emissions
from the turbines are controlled by water injection and monitored for compliance using
water to fuel ratios. Monitoring summaries of the water to fuel ratios were reviewed in
order to determine compliance with NOx emission limits stated in Air Quality Permit
No. 09492T07, Section 2.LA.3. All excess emissions were attributed to either startup,
shut down, malfunction(SSM), or other exempt emissions. These emissions were
reviewed and allowed in accordance with the applicable subpart.
In addition, quarterly percent excess emissions (%EE)and percent monitor downtime
(%MD)were reviewed for compliance with proper operation and maintenance (O&M)
practices pursuant to 40 CFR 60.11(d) and Air Quality Permit No. 09492T07, Section 3,
General Condition F. For each quarter, the facility-wide sum of%EE and%MD was
greater than the target criteria of 24%; therefore, a secondary evaluation was necessary.
Since the average number of operating hours for each peaking turbine was less than 150
Technical Services Section
1641 Mail Service Center,Raleigh,North Carolina 27699-1641
217 West Jones Street,Raleigh,North Carolina 27603
Phone:[phone] Fax:[phone]
Internet:www.ncair,org
An Eaual O000rtunity l Affirmative Action Emolover—Made in Dart by Recvcled PaDer

Mr. S. Lee Ragsdale
September 25, 2013
Page 2
hours each quarter, and the SSM ratio was less than 15%, it appears the peaking turbines
were operated with proper O&M.
If you should have any questions, please contact me at 919-707-8493 or [e-mail].
Sincerely,
Alan Drake
Environmental Engineer
cc: Steven Vozzo, FRO
Michael Pjetraj, RCO
Central Files, Anson County
IBEAM(0400050)