| (a) For all persons in the Beaumont-Port Arthur, Bexar
County, Dallas-Fort Worth, El Paso, and Houston-Galveston-Brazoria
areas, as defined in §115.10 of this title (relating to Definitions),
the following emission specifications shall apply.
(1) No person may allow a vent gas stream containing
volatile organic compounds (VOC) to be emitted from any process vent,
unless the vent gas stream is controlled properly in accordance with §115.122(a)(1)
of this title (relating to Control Requirements). Vent gas streams
include emissions from compressor rod packing that are contained and
routed through a vent, except from compressors subject to Division
7 of this subchapter (relating to Oil and Natural Gas in Ozone Nonattainment
Areas), and emissions from a glycol dehydrator still vent.
(2) No person may allow a vent gas stream to be emitted
from the following processes unless the vent gas stream is controlled
properly in accordance with §115.122(a)(2) of this title:
(A) any synthetic organic chemical manufacturing industry
reactor process or distillation operation;
(B) any air oxidation synthetic organic chemical manufacturing
process;
(C) any liquid phase polypropylene manufacturing process;
(D) any liquid phase slurry high-density polyethylene
manufacturing process; or
(E) any continuous polystyrene manufacturing process.
(3) In the Bexar County, Dallas-Fort Worth, El Paso,
and Houston-Galveston-Brazoria areas, as defined in §115.10 of
this title, VOC emissions from bakery ovens, shall be controlled properly
in accordance with §115.122(a)(3) of this title.
(4) Any vent gas stream in the Houston-Galveston-Brazoria
area which includes a highly-reactive volatile organic compound, as
defined in §115.10 of this title, is subject to the requirements
of Subchapter H of this chapter (relating to Highly-Reactive Volatile
Organic Compounds) in addition to the applicable requirements of this
division.
(b) In Nueces and Victoria Counties, no person may
allow a vent gas stream to be emitted from any process vent containing
one or more of the following VOC or classes of VOC, unless the vent
gas stream is controlled properly in accordance with §115.122(b)
of this title:
(1) emissions of ethylene associated with the formation,
handling, and storage of solidified low-density polyethylene;
(2) emissions of the following specific VOC: ethylene,
butadiene, isobutylene, styrene, isoprene, propylene, methylstyrene;
and
(3) emissions of specified classes of VOC, including
aldehydes, alcohols, aromatics, ethers, olefins, peroxides, amines,
acids, esters, ketones, sulfides, and branched chain hydrocarbons
(C8 and above).
(c) For persons in Aransas, Bexar, Calhoun, Matagorda,
San Patricio, and Travis Counties, the following emission specifications
shall apply. The emission specifications of this subsection no longer
apply for sources located in Bexar County beginning January 1, 2025.
(1) No person may allow a vent gas stream to be emitted
from any process vent containing one or more of the following VOC
or classes of VOC, unless the vent gas stream is controlled properly
in accordance with §115.122(c)(1) of this title:
(A) emissions of ethylene associated with the formation,
handling, and storage of solidified low-density polyethylene;
(B) emissions of the following specific VOC: ethylene,
butadiene, isobutylene, styrene, isoprene, propylene, and methylstyrene;
and
(C) emissions of specified classes of VOC, including
aldehydes, alcohols, aromatics, ethers, olefins, peroxides, amines,
acids, esters, ketones, sulfides, and branched chain hydrocarbons
(C8 and above).
(2) No person may allow a vent gas stream to be emitted
from any catalyst regeneration of a petroleum or chemical process
system, basic oxygen furnace, or fluid coking unit into the atmosphere,
unless the vent gas stream is properly controlled in accordance with §115.122(c)(2)
of this title.
(3) No person may allow a vent gas stream to be emitted
from any iron cupola into the atmosphere, unless the vent gas stream
is properly controlled in accordance with §115.122(c)(3) of this
title.
(4) Vent gas streams from blast furnaces shall be controlled
properly in accordance with §115.122(c)(4) of this title.
|
| Source Note: The provisions of this §115.121 adopted to be effective February 19, 1990, 15 TexReg 549; amended to be effective August 1, 1992, 17 TexReg 4683; amended to be effective December 3, 1993, 18 TexReg 8538; amended to be effective May 27, 1994, 19 TexReg 3703; amended to be effective January 27, 1995, 20 TexReg 221; amended to be effective March 7, 1996, 21 TexReg 1548; amended to be effective May 22, 1997, 22 TexReg 4213; amended to be effective January 17, 2003, 28 TexReg 113; amended to be effective June 25, 2015, 40 TexReg 3907; amended to be effective July 21,2021,46 TexReg 4313; amended to be effective May 16, 2024, 49 TexReg 3292 |
