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HomeMy WebLinkAboutAQ_F_1000067_20061130_CEM_RptRvwLtr Ad ...�..r a NCDENR North Carolina Department of Environment and Natural Resources Division of Air Quality Michael F. Easley, Governor William G. Ross,Jr., Secretary B. Keith Overcash, P.E., Director November 30, 2006 Mr. Gary Hickey General Manager Primary Energy P.O. Box 10836 Southport,North Carolina 28461 Subject: Excess Emissions Report (EER)for the 3rd Quarter, 2006 Facility I.D.No. 1000067 Dear Mr. Hickey: The Division of Air Quality(DAQ)has reviewed the subject reports dated October 23,2006 and submitted by Primary Energy of Southport, Inc. for Units No. 1 and 2. The reports were reviewed for compliance with the applicable emission standards set forth in 40 CFR Part 60 Subpart Db,the general provisions of 40 CFR 60.11(d)and 40 CFR 60.13. For Units 1 and 2, compliance with the nitrogen oxide emission standard is determined through the use of a 30-day rolling average emission rate in accordance with 40 CFR 60.46b. There were no violations of the NO,, emission standard for Units 1 and 2. Also, Units 1 and 2 are subject to the opacity standards set forth in 40 CFR 60 Subpart Db. Thus, when reviewed for compliance with the standards,the report indicated no opacity excursions for Unit 1 and 72 minutes(12 periods)of opacity excursions for Unit 2. The six-minute opacity excess emission incidents for Unit 1 occurred due to control equipment problems. The six-minute opacity excess emission incidents for Unit 2 occurred due to broken bags, control damper failure and startup. DAQ's review of the Continuous Emissions Monitoring Compliance Report(CEMCR)for NOx, the Excess Emissions Report(EER) for opacity, and Continuous Monitoring System(CMS) downtime (DT) for Units 1 and 2 during the quarter ending October 31, 2006 confirmed the reported results as follows: Units: No. 1 No. 2 NO, Excess Emission: 0.00% 0.00% NO,CMS Downtime: 0.27% 0,44% Opacity Excess Emission: 0.00% 0.06% Opacity CMS Downtime: 0.23% 0.08% Technical Services Section One 1641 Mail Service Center,Raleigh,North Carolina 27699-1641 NorthCarolina 2728 Capital Blvd„Raleigh,North Carolina 27604 yr�//� Phone: 919-733-17281 FAX 919-733-18121 Internet: www.ncair.org �atu` [L An Equal Opportunity/Affirmative Action Employer—50%Recycled/10%Post Consumer Paper Mr.Gary Hickey 11/3 0/06 Page 2 For the purpose of assessing good operation and maintenance (O&M) practices for particulate emission control devices and all continuous monitoring systems, the DAQ uses, among other things,the EPA Region IV CEM Enforcement Plan (CEP). Based on this plan, excess emissions(opacity only) and/or monitor downtime (all CMS) greater than 2%, 5% for two consecutive quarters or 10% for any one quarter is followed by appropriate agency response and for enforcement purposes only. All data in your third quarter report indicated you were below the CEP threshold levels for all of your Units 1 and 2. The CD results, after the excessive monitor downtimes, indicate that the calibration drift values of your CEM systems are within the specifications given in 40 CFR 60 Appendix F, and therefore demonstrate compliance. Unless the permit or any applicable rule states otherwise,your fixture quarterly Continuous Emission Monitoring Compliance Report and Excess Emission Reports will be reviewed consistent with the compliance of the emission control standards set forth in 40 CFR 60, Subpart Db, and the CEP will be used to assess excess opacity emissions and CMS downtime. All violations of the NO,. emission standard may result in enforcement actions. Based on this review and any other information you have submitted, we conclude that the referenced excess emissions are excused pursuant to 40 CFR 60, Subpart A and Subpart Db. These excused excesses do not prevent you from certifying compliance in your Annual Compliance Certification (ACC) for the calendar year 2006. If you have any questions regarding the issues discussed in this letter, please contact me at (919) 715-0726. Sincerely, Richard R. Simpson / Environmental Engineer cc: ike Aldridge Wayne Cook -WIRO Central File -Brunswick Co. Tracy Patterson—Cogentrix IMPAQ—Documents-1000067