Texas Administrative Code › Title 30 - ENVIRONMENTAL QUALITY › Part 1 - TEXAS COMMISSION ON ENVIRONMENTAL QUALITY › Chapter 115 - CONTROL OF AIR POLLUTION FROM VOLATILE ORGANIC › Subchapter B - GENERAL VOLATILE ORGANIC COMPOUND SOURCES › Division 1 - STORAGE OF VOLATILE ORGANIC COMPOUNDS › Section 115.115 - Monitoring Requirements

Current through Reg. 49, No. 28; July 12, 2024
(a) The
					 following monitoring requirements apply in the Beaumont-Port Arthur,
					 Dallas-Fort Worth, El Paso, and Houston-Galveston-Brazoria areas, as defined in
					 §
											115.10 of
					 this title (relating to Definitions). An affected owner or operator shall
					 install and maintain monitors to measure operational parameters of any of the
					 following control devices installed to meet applicable control requirements.
					 Such monitors must be sufficient to demonstrate proper functioning of those
					 devices to design specifications.
(1) For a
					 direct-flame incinerator, the owner or operator shall continuously monitor the
					 exhaust gas temperature immediately downstream of the device.
(2) For a condensation system, the owner or
					 operator shall continuously monitor the outlet gas temperature to ensure the
					 temperature is below the manufacturer's recommended operating temperature for
					 controlling the volatile organic compounds (VOC) vapors routed to the
					 device.
(3) For a carbon adsorption
					 system or carbon adsorber, as defined in §
												101.1 of
					 this title (relating to Definitions), the owner or operator shall:
(A) continuously monitor the exhaust gas VOC
					 concentration of a carbon adsorption system that regenerates the carbon bed
					 directly to determine breakthrough. For the purpose of this paragraph,
					 breakthrough is defined as a measured VOC concentration exceeding 100 parts per
					 million by volume above background expressed as methane; or
(B) switch the vent gas flow to fresh carbon
					 at a regular predetermined time interval for a carbon adsorber or carbon
					 adsorption system that does not regenerate the carbon directly. The time
					 interval must be less than the carbon replacement interval determined by the
					 maximum design flow rate and the VOC concentration in the gas stream vented to
					 the carbon adsorption system or carbon adsorber.
(4) For a catalytic incinerator, the owner or
					 operator shall continuously monitor the inlet and outlet gas
					 temperature.
(5) For a vapor
					 recovery unit used to comply with §
												115.112(e)(3)
					 of this title (relating to Control Requirements), the owner or operator shall
					 continuously monitor at least one of the following operational parameters:
(A) run-time of the compressor or motor in a
					 vapor recovery unit;
(B) total
					 volume of recovered vapors; or
(C)
					 other parameters sufficient to demonstrate proper functioning to design
					 specifications.
(6) For
					 a control device not listed in this subsection, the owner or operator shall
					 continuously monitor one or more operational parameters sufficient to
					 demonstrate proper functioning of the control device to design
					 specifications.