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 4 - INDUSTRIAL WASTEWATER › Section 115.142 - Control Requirements

Current through Reg. 49, No. 28; July 12, 2024
The owner or operator of an affected source category
						within a plant in the Beaumont/Port Arthur, Dallas/Fort Worth, El Paso, and
						Houston/Galveston areas, as defined in §
											115.10 of
						this title (relating to Definitions), shall comply with the following control
						requirements. Any component of a wastewater storage, handling, transfer, or
						treatment facility, if the component contains an affected volatile organic
						compounds (VOC) wastewater stream, shall be controlled in accordance with
						either paragraph (1) or (2) of this section, except for properly operated
						biotreatment units which shall meet the requirements of paragraph (3) of this
						section. In the Dallas/Fort Worth and El Paso areas, and until December 31,
						2002 in the Houston/Galveston area, the control requirements apply from the
						point of generation of an affected VOC wastewater stream until the affected VOC
						wastewater stream is either returned to a process unit or is treated to remove
						VOC so that the wastewater stream no longer meets the definition of an affected
						VOC wastewater stream. In the Beaumont/Port Arthur area, and after December 31,
						2002 in the Houston/Galveston area, the control requirements apply from the
						point of generation of an affected VOC wastewater stream until the affected VOC
						wastewater stream is either returned to a process unit, or is treated to reduce
						the VOC content of the wastewater stream by 90% by weight and also reduce the
						VOC content of the same VOC wastewater stream to less than 1,000 parts per
						million by weight. For wastewater streams which are combined and then treated
						to remove VOC, the amount of VOC to be removed from the combined wastewater
						stream shall be at least the total amount of VOC that would be removed to treat
						each individual affected VOC wastewater stream so that they no longer meet the
						definition of affected VOC wastewater stream, except for properly operated
						biotreatment units which shall meet the requirements of paragraph (3) of this
						section. For this division, a component of a wastewater storage, handling,
						transfer, or treatment facility shall include, but is not limited to,
						wastewater storage tanks, surface impoundments, wastewater drains, junction
						boxes, lift stations, weirs, and oil-water separators.
(1) The wastewater component shall meet the
					 following requirements.
(A) All components
					 shall be fully covered or be equipped with water seal controls. For any
					 component equipped with water seal controls, the only acceptable alternative to
					 water as the sealing liquid in a water seal is the use of ethylene glycol,
					 propylene glycol, or other low vapor pressure antifreeze, which may be used
					 only during the period of November through February. For any process drain not
					 equipped with water seal controls, the process drain shall be equipped with a
					 gasketed seal, or a tightly-fitting cap or plug.
(B) All openings shall be closed and sealed,
					 except when the opening is in actual use for its intended purpose or the
					 component is maintained at a pressure less than atmospheric pressure.
(C) All liquid contents shall be totally
					 enclosed.
(D) For junction boxes
					 and vented covers, the following requirements apply.
(i) In the Dallas/Fort Worth and El Paso
					 areas, and until December 31, 2002 in the Houston/Galveston area, if any cover,
					 other than a junction box cover, is equipped with a vent, the vent shall be
					 equipped with either a vapor control system which maintains a minimum control
					 efficiency of 90% or a closed system which prevents the flow of VOC vapors from
					 the vent during normal operation. Any junction box vent shall be equipped with
					 a vent pipe at least 90 centimeters (cm) (36 inches (in.)) in length and no
					 more than 10.2 cm (4.0 in.) in diameter.
(ii) In the Beaumont/Port Arthur area, and
					 after December 31, 2002 in the Houston/Galveston area, the following
					 requirements apply.
(I) If any cover or
					 junction box cover, except for junction boxes described in subclause (II) of
					 this clause, is equipped with a vent, the vent shall be equipped with either a
					 vapor control system which maintains a minimum control efficiency of 90% or a
					 closed system which prevents the flow of VOC vapors from the vent during normal
					 operation.
(II) Any junction box
					 that is filled and emptied by gravity flow (i.e., there is no pump) or is
					 operated with no more than slight fluctuations in the liquid level may be
					 vented to the atmosphere, provided it is equipped with:
(-a-) a vent pipe at least 90 cm (36 in.) in
					 length and no more than 10.2 cm (4.0 in.) in diameter; and
(-b-) water seal controls which are installed
					 and maintained at the wastewater entrance(s) to or exit from the junction box
					 restricting ventilation in the individual drain system and between components
					 in the individual drain system.
(E) All gauging and sampling devices shall be
					 vapor-tight except during gauging or sampling.
(F) Any loading or unloading to or from a
					 portable container by pumping shall be performed with a submerged fill
					 pipe.
(G) All seals and cover
					 connections shall be maintained in proper condition. For purposes of this
					 paragraph, "proper condition" means that covers shall have a tight seal around
					 the edge and shall be kept in place except as allowed by this division, that
					 seals shall not be broken or have gaps, and that sewer lines shall have no
					 visible gaps or cracks in joints, seals, or other emission
					 interfaces.
(H) If any seal or
					 cover connection is found to not be in proper condition, a first attempt at
					 repair shall be made no later than five calendar days after the leak or
					 improper condition is found. The repair or correction shall be completed as
					 soon as possible but no later than 15 calendar days after detection, unless the
					 repair or correction is technically infeasible without requiring a process unit
					 shutdown, in which case the repair or correction shall be made at the next
					 process unit shutdown. Test Method 21 must be used to confirm that a leak or
					 improper condition is repaired, and the following records shall be maintained:
(i) the date on which a leak or improper
					 condition is discovered;
(ii) the
					 date on which a first attempt at repair was made to correct the leak or
					 improper condition;
(iii) the date
					 on which a leak or improper condition is repaired; and
(iv) the date and instrument reading of the
					 recheck procedure after a leak or improper condition is repaired.