Texas Administrative Code › Title 30 - ENVIRONMENTAL QUALITY › Part 1 - TEXAS COMMISSION ON ENVIRONMENTAL QUALITY › Chapter 117 - CONTROL OF AIR POLLUTION FROM NITROGEN COMPOUNDS › Subchapter D - COMBUSTION CONTROL AT MINOR SOURCES IN OZONE NONATTAINMENT AREAS › Division 1 - HOUSTON-GALVESTON-BRAZORIA OZONE NONATTAINMENT AREA MINOR SOURCES › Section 117.2035 - Monitoring and Testing Requirements

Current through Reg. 49, No. 28; July 12, 2024
(a)
					 Totalizing fuel flow meters.
(1) The owner or
					 operator of each unit subject to §
												117.2010
					 of this title (relating to Emission Specifications) and subject to Chapter 101,
					 Subchapter H, Division 3 of this title (relating to Mass Emissions Cap and
					 Trade Program), or of each unit claimed exempt under §
												117.2003(b)
					 of this title (relating to Exemptions) shall install, calibrate, maintain, and
					 operate totalizing fuel flow meters with an accuracy of ± 5%, to
					 individually and continuously measure the gas and liquid fuel usage. A computer
					 that collects, sums, and stores electronic data from continuous fuel flow
					 meters is an acceptable totalizer. The owner or operator of units with
					 totalizing fuel flow meters installed prior to March 31, 2005, that do not meet
					 the accuracy requirements of this subsection shall either recertify or replace
					 existing meters to meet the ± 5% accuracy required as soon as
					 practicable, but no later than March 31, 2007. For the purpose of compliance
					 with this subsection for units having pilot fuel supplied by a separate fuel
					 system or from an unmonitored portion of the same fuel system, the fuel flow to
					 pilots may be calculated using the manufacturer's design flow rates rather than
					 measured with a fuel flow meter. The calculated pilot fuel flow rate must be
					 added to the monitored fuel flow when fuel flow is totaled.
(2) The following are alternatives to the
					 fuel flow monitoring requirements of this subsection.
(A) Units operating with a nitrogen oxides
					 (NOX) and diluent continuous emissions monitoring system
					 (CEMS) under subsection (c) of this section may monitor stack exhaust flow
					 using the flow monitoring specifications of 40 Code of Federal Regulations
					 (CFR) Part 60, Appendix B, Performance Specification 6 or 40 CFR Part 75,
					 Appendix A.
(B) Units that vent to
					 a common stack with a NOX and diluent CEMS under
					 subsection (c) of this section may use a single totalizing fuel flow
					 meter.
(C) Diesel engines operating
					 with run time meters may meet the fuel flow monitoring requirements of this
					 subsection through monthly fuel use records.
(D) Units of the same category of equipment
					 subject to Chapter 101, Subchapter H, Division 3 of this title may share a
					 single totalizing fuel flow meter provided:
(i) the owner or operator performs a stack
					 test in accordance with subsection (e) of this section for each unit sharing
					 the totalizing fuel flow meter; and
(ii) the testing results from the unit with
					 the highest emission rate (in pounds per million British thermal units or grams
					 per horsepower-hour) are used for reporting purposes in §
														101.359 of
					 this title (relating to Reporting) for all units sharing the totalizing fuel
					 flow meter.
(E) The
					 owner or operator of a unit or units claimed exempt under §
													117.2003(b)
					 of this title, located at an independent school district may demonstrate
					 compliance with the exemption by the following:
(i) in addition to the records required by
					 §
														117.2045(a)(1)
					 of this title (relating to Recordkeeping and Reporting Requirements), maintain
					 the following monthly records in either electronic or written format. These
					 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;
(I)
					 total fuel usage for the entire site;
(II) the estimated hours of operation for
					 each unit;
(III) the estimated
					 average operating rate (e.g., a percentage of maximum rated capacity) for each
					 unit; and
(IV) the estimated fuel
					 usage for each unit; and
(ii) within 60 days of written request by the
					 executive director, submit for review and approval all methods, engineering
					 calculations, and process information used to estimate the hours of operation,
					 operating rates, and fuel usage for each unit.
(F) The owner or operator of units claimed
					 exempt under §
													117.2003(b)
					 of this title may share a single totalizing fuel flow meter to demonstrate
					 compliance with the exemption, provided that:
(i) all affected units at the site qualify
					 for the exemption under §
														117.2003(b)
					 of this title; and
(ii) the total
					 fuel usage for all units at the site is less than:
(I) the annual fuel usage limitation in
					 §
															117.2003(b)(1)
					 of this title; or
(II) the annual
					 fuel usage limitation in §
															117.2003(b)(2)
					 of this title when all affected units at the site are equal to or greater than
					 5.0 million British thermal units per hour.
(G) Stationary reciprocating internal
					 combustion engines and stationary gas turbines equipped with a continuous
					 monitoring system that continuously monitors horsepower and hours of operation
					 are not required to install totalizing fuel flow meters. The continuous
					 monitoring system must be installed, calibrated, maintained, and operated
					 according to manufacturer's procedures.