Texas Administrative Code
Title 30 - ENVIRONMENTAL QUALITY
Part 1 - TEXAS COMMISSION ON ENVIRONMENTAL QUALITY
Chapter 106 - PERMITS BY RULE
Subchapter Q - PLASTICS AND RUBBER
Section 106.392 - Thermoset Resin Facilities
Universal Citation: 30 TX Admin Code § 106.392
Current through Reg. 49, No. 52; December 27, 2024
Facilities using thermoset resins (excluding resins that do not emit air contaminants) to manufacture or repair products are permitted by rule, provided that the following conditions of this section are satisfied for paragraph (1) and either paragraph (2) or (3) of this section.
(1) The following requirements shall apply to all thermoset resin facilities.
(A) Before
construction begins, the facility must be registered with the commission using
Form PI-7.
(B) Records of resin and
acetone usage shall be kept on a monthly and calendar year-to-date basis to
show compliance with this section, and shall be maintained for the most recent
24 months.
(C) All resin spraying
and cleaning operations shall be conducted between two hours before sunrise and
two hours after sunset. The exhaust fan(s) must be operating during and for at
least 30 minutes after any usage of resin and/or cleaning solvents.
(D) All solid trim grinding operations shall
be vented through a dry filter system or a water wash system which has a
particulate removal efficiency of at least 95%. Particulates trapped in the dry
filter system or water wash sludge shall be handled and stored in a way to
minimize the escape of fugitive dust emissions.
(E) No more than five tons of acetone shall
be used per year (gross usage minus waste disposal).
(2) The following requirements shall apply to facilities that have spraying operations (the facilities may include non-spraying operations).
(A) No more than 75
tons of resin and gelcoat combined shall be used per year (gross usage minus
waste disposal).
(B) All resin
spraying operations shall be conducted in a booth or an enclosed work area and
the emissions shall be exhausted through elevated stack(s). All stacks shall
discharge vertically to the atmosphere with no restrictions or obstructions to
flow. Each stack shall meet one of the following minimum requirements:
(i) a flow rate of 20,000 actual cubic feet
per minute (acfm) and the greater of six feet above the peak of the
manufacturing building or 25 feet above ground level; or
(ii) a flow rate of 15,000 acfm and the
greater of six feet above the peak of the manufacturing building or 30 feet
above ground level.
(C)
No more than 1,000 pounds per year of resin shall be used outdoors.
(D) If annual resin usage is less than 1,000
pounds, a facility is exempt from all requirements of this section except
recordkeeping (paragraph (1)(B) of this section).
(3) The following requirements shall apply only to non-spraying operations.
(A) No more
than 150 tons of resin and gelcoat combined shall be used per year (gross usage
minus waste disposal).
(B) All
resin operations shall be conducted in a booth or an enclosed work area or the
manufacturing building and the emissions shall be exhausted through elevated
stack(s). All stacks shall discharge vertically to the atmosphere with no
restrictions or obstructions to flow. Each stack shall meet one of the
following minimum requirements:
(i) a flow
rate of 20,000 acfm and the greater of six feet above the peak of the
manufacturing building or 25 feet above ground level; or
(ii) a flow rate of 15,000 acfm and the
greater of six feet above the peak of the manufacturing building or 30 feet
above ground level.
(C)
No more than 3,000 pounds per year of resin shall be used outdoors.
(D) If annual resin usage is less than 3,000
pounds, a facility is exempt from all requirements of this section except
recordkeeping (paragraph (1)(B) of this section).
Disclaimer: These regulations may not be the most recent version. Texas may have more current or accurate information. We make no warranties or guarantees about the accuracy, completeness, or adequacy of the information contained on this site or the information linked to on the state site. Please check official sources.
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