(a) Notification. The owner or operator of an affected unit shall submit written notification to the appropriate regional office and any local air pollution control agency having jurisdiction of any continuous emissions monitoring system (CEMS) or predictive emissions monitoring system (PEMS) relative accuracy test audit (RATA) conducted under §117.1140 of this title (relating to Demonstration of Compliance) at least 15 days prior to such date.
(b) Reporting of test results. The owner or operator of an affected unit shall furnish the Office of Compliance and Enforcement, the appropriate regional office, and any local air pollution control agency having jurisdiction a copy of the results of any CEMS or PEMS RATA conducted under §117.1140 of this title within 60 days after completion of such testing or evaluation.
(c) Startup and shutdown records. For units subject to the startup and/or shutdown provisions of §101.222 of this title (relating to Demonstrations), hourly records must be made of startup and/or shutdown events and maintained for a period of at least two years. Records must be available for inspection by the executive director, United States Environmental Protection Agency, and any local air pollution control agency having jurisdiction upon request. These records must include, but are not limited to: type of fuel burned; quantity of each type fuel burned; gross and net energy production in megawatt-hours; and the date, time, and duration of the event.
(d) Semiannual reports. The owner or operator of a unit required to install a CEMS or PEMS under §117.1140 of this title shall report in writing to the executive director on a semiannual basis any exceedance of the applicable emission limitations in this division and the monitoring system performance. All reports must be postmarked or received by the 30th day following the end of each calendar semiannual period (i.e., July 30 and January 30). Written reports must include the following information:
  (1) the magnitude of excess emissions computed in accordance with 40 Code of Federal Regulations §60.13(h), any conversion factors used, the date and time of commencement and completion of each time period of excess emissions, and the unit operating time during the reporting period;
  (2) specific identification of each period of excess emissions that occurs during startups, shutdowns, and malfunctions of the affected unit, the nature and cause of any malfunction (if known) and the corrective action taken, or preventative measures adopted;
  (3) the date and time identifying each period when the continuous monitoring system was inoperative, except for zero and span checks and the nature of the system repairs or adjustments;
  (4) when no excess emissions have occurred or the continuous monitoring system has not been inoperative, repaired, or adjusted, such information must be stated in the report; and
  (5) if the total duration of excess emissions for the reporting period is less than 1.0% of the total unit operating time for the reporting period and the CEMS or PEMS monitoring system downtime for the reporting period is less than 5.0% of the total unit operating time for the reporting period, only a summary report form (as outlined in the latest edition of the commission's Guidance for Preparation of Summary, Excess Emission, and Continuous Monitoring System Reports) must be submitted, unless otherwise requested by the executive director. If the total duration of excess emissions for the reporting period is greater than or equal to 1.0% of the total unit operating time for the reporting period or the CEMS or PEMS downtime for the reporting period is greater than or equal to 5.0% of the total unit operating time for the reporting period, a summary report and an excess emission report must both be submitted.
(e) Recordkeeping. The owner or operator of a unit subject to this division shall maintain records of the data specified in this subsection. Records must be kept for at least five years and must be made available upon request by authorized representatives of the executive director, United States Environmental Protection Agency, or local air pollution control agencies having jurisdiction.
  (1) The owner or operator of a unit complying with the NOX emission specifications in §117.1105(a)(1) - (4) of this title shall maintain daily records indicating the NOX emissions in pounds; the quantity and type of each fuel burned; the heat input in million British thermal units (MMBtu); and the rolling 30-day average NOX emission rate in pounds per MMBtu.
  (2) The owner or operator of a unit complying with the NOX emission specification in §117.1105(a)(5) of this title shall maintain hourly records indicating the NOX emissions in lb; the quantity and type of each fuel burned; and the heat input in MMBtu.
  (3) The owner or operator complying with the NOX emission system cap in §117.1120 of this title shall maintain daily records for each EGF in the cap indicating the NOX emissions in pounds; the quantity and type of each fuel burned; and the heat input in MMBtu. In addition, the owner or operator shall maintain daily records indicating the total NOX emissions in pounds from all EGFs under the system cap and the rolling 30-day average NOX emissions rate (in pounds per day) for all EGFs under the system cap.
  (4) The owner or operator of a unit using the exemption in §117.1103(1) of this title (relating to Exemptions), shall maintain monthly records indicating the quantity and type of each fuel burned, the heat input in MMBtu; and the rolling 12-month average heat input in MMBtu.
  (5) The owner or operator of a unit the exemption in §117.1103(2) of this title, shall maintain monthly records indicating the operating hours and the rolling 12-month average operating hours.
  (6) The owner or operator shall maintain records of records of the results of testing, evaluations, calibrations, checks, adjustments, and maintenance of a CEMS or PEMS.

Source Note: The provisions of this §117.1145 adopted to be effective May 16, 2024, 49 TexReg 3347