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ROY COOPER NORTH CAROLINA
Governor Environmental Quality
MICHAEL S.REGAN
Secretary
MICHAEL ABRACZINSKAS
Director
March 14,2019
Mr.Francis Hayward
Plant Manager
Capital Power Corporation
P.O.Box 10836
1281 Powerhouse Drive SE
Southport,North Carolina 28461
Subject: 4TH Quarter 2018 Continuous Emissions Monitoring Compliance Report(CEMCR)
4'Quarter 2018 Excess Emission Report(EER)
Air Permit No. 05884T21
Facility ID No. 1000067
Dear Mr.Hayward,
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 29,2019.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 reports for the period ending December 31,2018.The percent excess
emissions %EE and percent monitor downtime %MD are s>>*nmar. ed as follows:
Emission Unit Pollutant %EE %MD Emission Applicable
Violations Regulation
CEMCR
Unit 1 NOx 0.00% 0.75% 0 §60.44b(a)/60.44b(c)
Boiler No. 0.00% 0.75% NCAC 2D .0530
ES-14A 0.00% 0.75% NCAC 2D .0501(c)
ES-1-113 SO2 0.00% 1.00% ----- NCAC 2D .0530
ES-14C 29.63% 1.00% NCAC 2D .0501 c
Common Stack 02acity 0.03% 3.10% ----- 60.43
CO 0.00% 1.00% ----- NCAC 2D .l 109&
0501 c
Unit 2 NOx 0.00% 0.73% 0 §60.44b(a)/60.44b(c)
Boiler No. 0.00% 0.73% NCAC 2D .0530
ES-2-lA 0.00% 0.73% NCAC 2D .0501 c
ES-2-1B S02 0.00% 0.73% 0 NCAC 2D .0530
ES-2-1C 41.32% 0.73% NCAC 2D .0501 c
Common Stack Opacity 0.04% 1.50% ----- 60.43b
CO 0.00% 0.73% ----- NCAC 2D .1109&
.0501 c
North Carolina Department of Environmental Quality I Division of Air Quality
217 West Jones Street 11641 Mail Service Center I Raleigh.North Carolina 27699-1641
919.707.8400

Mr.Francis Hayward
March 14,2019
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 fourth quarter for the Unit 1 and 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 2018 pursuant to 15A NCAC 02Q .0508.
The other excess emissions noted above are excused pursuant to the applicable regulation.Please note that
the S02 excess emissions of 29.63%and 41.32%for the Unit 1 and Unit 2 are addressed in the Special
Order by Consent(SOC 2016-001)signed on June 24,2016. 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(NOx, SO2 and CO)result for the Unit 1 and Unit 2,conducted during 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.parekh a7ncdenr.gov.
Sincerely,
Samir Parekh,P.E.,Environmental Engineer
Division of Air Quality,NCDEQ
cc: Gary Saunders
Brad Newland—WiRO
Central File—Brunswick Co.
IBEAM—Documents—1000067