AQ_F_1000067_20160407_CEM_RptRvwLtr

PAT MCCRORY
Governor
DONALD R. VAN DER VAART
Air Quality Secretary
ENVIRONMENTAL QUALITY
SHEILA C. HOLMAN
Director
April 7,2016
Mr. David H.Groves
Plant Manager
Capital Power Corporation
P.O.Box 10836
1281 Powerhouse Drive SE
Southport,North Carolina 28461
Subject: 21 Semi-Annual 2015 Continuous Emissions Monitoring Compliance Report(CEMCR)
21''D Semi-Annual 2015 Excess Emission Report(EER)
Air Permit No.05884T18
Facility I.D.No. 1000067
Dear Mr.Groves,
The Division of Air Quality(DAQ)has received the subject reports(CEMCR and EER)submitted by
The Capital Power Corporation in a letter dated January 20, 2016 and e-mail dated October 29,2015.The
reports were submitted for the continuous emission monitoring system(CEMS)and continuous opacity
monitoring system(COMS)operating on electric generating Unit 1 and Unit 2,each consisting of three
Boilers with the common stack.
DAQ' has reviewed the quarterly EERs for the semi-annual period ending December 31,2015.The
percent excess emissions (%EE)and percent monitor downtime (%MD)are summarized as follows:
Emission Pollutant Emission Excess Monitor Applicable
Unit Violations Emissions Downtime Regulations
(CEMCR) (%EE) (%MD)
Q3 Q4 Q3 Q4 Q3 Q4
Unit 1 NOx 0 0 ----- ----- 0.92% 1.30% §60.44b(a)/60.44b(c)
Boiler No. NCAC 2D .0530
ES-1-lA NCAC 2D .0501(e)
ES-1-113 S02 ----- ----- 0.00% 0.00% 0.92% 1.30% NCAC 2D .0530
ES-1-1C NCAC 2D .0501 e
Common Opacity ----- ----- 0.04% 0.01% 0.61% 0.96% §60.43b(f)
Stack CO 0 0 ----- ----- 0.92% 1.30% NCAC 2D .1109
Unit 2 NOx 0 0 ----- ----- 0.77% 0.72% §60.44b(a)/60.44b(c)
Boiler No. NCAC 213 .0530
ES-24A NCAC 2D .0501(e)
ES-2-1B S02 ----- ----- 0.00% 0.00% 1.11% 0.72% NCAC 2D .0530
ES-2-1 C NCAC 2D .0501(e)
Common Opacity ----- ----- 0.03% 0.01% 0.59% 1.05% §60.43b(f)
Stack CO 0 0 ----- ----- 0.72% 0.67% NCAC 2D .1109
State of North Carolina I Environmental Quality I Air Quality
1641 Mail Service Center[ 217 W.Jones Street,Suite 4000 1 Raleigh,NC 27699-1641
919 707 8400 T

Mr.David H. Groves
April 7, 2016
Page 2
The reports were reviewed for compliance with the applicable emission standards.There are opacity
excess emissions attributed to the"other known causes"during third and fourth quarter for the Unit 1 and
during third quarter for the Unit 2. Please note that these excess emissions are not excused pursuant to
40 CFR 60, Subpart A,and Subpart Db.These unexcused excess emissions prevent you from certifying
compliance in your Annual Compliance Certification(ACC) for the calendar year 2015 pursuant to 15A
NCAC 02Q .0508.
The other excess emissions in your reports are excused pursuant to the applicable regulation. Please note
that each exceedance of the emission control standard unless excused by applicable regulation can be
credible evidence of a violation consistent with 40 CFR 60.11(g).
The reports were also reviewed with the general provision of 40 CFR 60.11(d),and 40 CFR 60.13 to
assess good operation and maintenance(O&M)practices for the facility and monitoring systems. As
summarized in the table on the previous page,the emission units and associated CEMS/COMS
appeared to have operated using good O&M practices since quarterly percent excess emissions(%EE)
and percent monitor downtime(%MD)were less than 3%for two consecutive quarters and 6%for any
single calendar quarter.
The CGA(NO., SO2 and CO)result for the Unit 1 and Unit 2, conducted during third and fourth quarter
were within 15%specification given in 40 CFR 60,Appendix F.
The opacity monitor appears to meet the requirements of QA/QC rule(40 CFR Part 60,Appendix F,
Procedure 3).
If you have any questions,please contact me at(919)707-8409 or samir.parekhgncdenr.gov.
Sincerely,
Samir arekh,P.E.,Environmental Engineer
Division of Air Quality,NCDEQ
cc: Michael Pjetraj
Brad Newland—WiRO
Central File—Brunswick Co.
IBEAM—Documents— 1000067