(a) 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, the 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 of fuel burned; and the date, time, and duration of the procedure.
(b) Notification. The owner or operator of a unit subject to the emission specifications of §117.205(a) of this title (relating to Emission Specifications for Reasonably Available Control Technology (RACT)) shall submit written notification of any continuous emissions monitoring system (CEMS) or predictive emissions monitoring system (PEMS) relative accuracy test audit (RATA) conducted under §117.240 of this title (relating to Continuous Demonstration of Compliance) or any testing conducted under §117.235 of this title (relating to Initial Demonstration of Compliance) at least 15 days in advance of the date of the RATA or testing to the appropriate regional office and any local air pollution control agency having jurisdiction.
(c) Reporting of test results. The owner or operator of a unit subject to the emission specifications of §117.205(a) of this title shall furnish the Office of Compliance and Enforcement, the appropriate regional office, and any local air pollution control agency having jurisdiction a copy of any testing conducted under §117.235 of this title and any CEMS or PEMS RATA conducted under §117.240 of this title:
  (1) within 60 days after completion of such testing or evaluation; and
  (2) not later than the compliance schedule specified in §117.9010 of this title (relating to Compliance Schedule for Bexar County Eight-Hour Ozone Nonattainment Area Major Sources).
(d) Semiannual reports. The owner or operator of a unit required to install a CEMS or PEMS under §117.240 of this title shall report in writing to the executive director on a semiannual basis any exceedance of the applicable emission specifications of 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 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) Reporting for engines. The owner or operator of any gas-fired engine subject to the emission specifications in §117.205 of this title shall report in writing to the executive director on a semiannual basis any excess emissions and the air-fuel ratio 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 (based on the quarterly emission checks of §117.230(a)(2) of this title (relating to Operating Requirements) and the biennial emission testing required for demonstration of emissions compliance in accordance with §117.240(e) of this title), computed in pounds per hour and grams per horsepower-hour, any conversion factors used, the date and time of commencement and completion of each time period of excess emissions, and the engine operating time during the reporting period; and
  (2) specific identification, to the extent feasible, of each period of excess emissions that occurs during startups, shutdowns, and malfunctions of the engine or emission control system, the nature and cause of any malfunction (if known), and the corrective action taken, or preventative measures adopted.
(f) Recordkeeping. The owner or operator of a unit subject to the requirements of this division shall maintain written or electronic records of the data specified in this subsection. Such records must be kept for a period of at least five years and must be made available upon request by authorized representatives of the executive director, the United States Environmental Protection Agency, or local air pollution control agencies having jurisdiction. The records must include:
  (1) for each unit subject to §117.240(a) of this title, records of annual fuel usage;
  (2) for each unit using a CEMS or PEMS in accordance with §117.240 of this title, monitoring records of:
    (A) hourly emissions and fuel usage (or stack exhaust flow) for units complying with an emission specification enforced on a block one-hour average; or
    (B) daily emissions and fuel usage (or stack exhaust flow) for units complying with an emission specification enforced on a daily or rolling 30-day average. Emissions must be recorded in units of:
      (i) pounds per million British thermal units (lb/MMBtu) heat input; and
      (ii) pounds or tons per day;
  (3) for each stationary internal combustion engine subject to the emission specifications of this division, records of:
    (A) emissions measurements required by:
      (i) §117.230(2) of this title; and
      (ii) §117.240(e) of this title;
    (B) catalytic converter, air-fuel ratio controller, or other emissions-related control system maintenance, including the date and nature of corrective actions taken; and
    (C) daily average horsepower and total daily hours of operation for each engine that the owner or operator elects to use the alternative monitoring system allowed under §117.240(a)(2)(C) of this title;
  (4) for units claimed exempt from emission specifications using the exemption of §117.203(1)(D) of this title (relating to Exemptions), records of monthly hours of operation, for exemptions based on hours per year of operation. In addition, for each turbine or engine claimed exempt under §117.203(1)(D) or (E) of this title, written records must be maintained of the purpose of turbine or engine operation and, if operation was for an emergency situation, identification of the type of emergency situation and the start and end times and date(s) of the emergency situation;
  (5) records of the results of initial certification testing, evaluations, calibrations, checks, adjustments, and maintenance of CEMS or PEMS; and
  (6) records of the results of performance testing, including initial demonstration of compliance testing conducted in accordance with §117.235 of this title.

Source Note: The provisions of this §117.245 adopted to be effective May 16, 2024, 49 TexReg 3347