AQ_F_1000067_20210315_CEM_RptRvwLtr

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ROY COOPER ,
Governor 6 1
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DIONNEDELLFGATTI
Secretary $ °
MICHAEL ABRACZINSKAS NORTH CAROLINA
Director Environmental Quality
March 15, 2021
Mr. Francis Hayward
Plant Manager
Capital Power Corporation
P.O. Box 10836
1281 Powerhouse Drive SE
Southport,North Carolina 28461
Subject: 4TH Quarter 2020 Continuous Emissions Monitoring Compliance Report(CEMCR)
4TH Quarter 2020 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 22, 2021. 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 31,2020. The highest percent
excess emissions(%EE)and percent monitor downtime(%MD)are summarized as follows:
Emission Unit Pollutant %EE %MD Emission Applicable
Violations Regulation
CEMCR
Unit 1 NOx 0.00% 0.26% 0 §60.44b(a)/60.44b(c),NCAC 2D.0530,
Boiler No. SB3,NCAC 2D .0501 c
ES-1-1A S02 0.00% 0.47% ----- NCAC 2D .0530, .0516, SB3
ES-1-lB NCAC 2D .0501 c
ES-1-1C Opacity 0.00% 0.50% ----- §60.43b
Common Stack CO 0.00% 0.26% ----- NCAC 2D .0501(c), 0530, SB3,
MACT DDDDD
Unit 2 NOx 0.00% 0.59% 0 §60.44b(a)/60.44b(c),NCAC 2D.0530,
Boiler No. SB3,NCAC 2D .0501 c
ES-2-1A S02 0.00% 0.59% 0 NCAC 2D .0530, .0516, SB3
ES-2-1B NCAC 2D .0501(c)
ES-2-1C Opacity 0.05% 0.56% ----- 60.43b
Common Stack CO 0.00% 0.59% ----- NCAC 2D .0501(c), 0530, SB3,
MACT DDDDD
D Q
�� 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
NORTH OAAOHNF
oepemmem m end,u.nmui 4wiiry 919.707.8400

Mr. Francis Hayward
March 15,2021
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 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 2020 pursuant to 15A NCAC 02Q .0508.
The other excess emissions noted above 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(NOx, SOz 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).
Due to COVID-19 restrictions on DAQ staff and our office operations,the mailing of this letter may be
delayed. In the meantime, an electronic copy(e-copy)is being provided for your records. If you should
have any questions,please contact me at(919)707-8409 or samir.parekh(kncdenr.gov.
Sincerely,
Samir Parekh,P.E.,Environmental Engineer
Division of Air Quality,NCDENR
cc: Gary Saunders
Brad Newland—WiRO (e-copy)
IBEAM—Documents— 1000067 (e-copy)
Central File—Brunswick Co.