(a) Except as specified in subsection (e) of this section,
the owner or operator shall limit the volatile organic compounds (VOC)
content of cleaning solutions to:
(1) 0.42 pound of VOC per gallon of solution (lb VOC/gal
solution), as applied; or
(2) limit the composite partial vapor pressure of the
cleaning solution to 8.0 millimeters of mercury at 20 degrees Celsius
(68 degrees Fahrenheit).
(b) As an alternative to subsection (a) of this section,
the owner or operator shall operate a vapor control system capable
of achieving an overall control efficiency of 85% by mass. Control
device and capture efficiency testing must be performed in accordance
with the testing requirements in §115.465 of this title (relating
to Approved Test Methods and Testing Requirements).
(c) The owner or operator of a solvent cleaning operation
shall implement the following work practices during the handling,
storage, and disposal of cleaning solvents and shop towels:
(1) cover open containers and used applicators;
(2) minimize air circulation around solvent cleaning
operations;
(3) properly dispose of used solvent and shop towels;
and
(4) implement equipment practices that minimize emissions
(e.g. maintaining cleaning equipment to repair solvent leaks).
(d) A solvent cleaning operation that becomes subject
to subsection (a) of this section by exceeding the exemption limits
in §115.461 of this title (relating to Exemptions) is subject
to the provisions in subsection (a) of this section even if throughput
or emissions later fall below exemption limits unless emissions are
maintained at or below the controlled emissions level achieved while
complying with subsection (a) of this section and one of the following
conditions is met.
(1) The project that caused throughput or emission
rate to fall below the exemption limits in §115.461 of this title
must be authorized by a permit, permit amendment, standard permit,
or permit by rule required by Chapter 116 or Chapter 106 of this title
(relating to Control of Air Pollution by Permits for New Construction
or Modification; and Permits by Rule, respectively). If a permit by
rule is available for the project, the owner or operator shall continue
to comply with subsection (a) of this section for 30 days after the
filing of documentation of compliance with that permit by rule.
(2) If authorization by permit, permit amendment, standard
permit, or permit by rule is not required for the project, the owner
or operator shall provide the executive director 30 days notice of
the project in writing.
(e) If the commission has published notice in the Texas Register, as provided in §115.469(d)
or (e) of this title (relating to Compliance Schedules), to require
compliance with the contingency measure control requirements for the
Dallas-Fort Worth area, the Houston-Galveston-Brazoria area, or both
areas the following control requirements apply instead of subsection
(a) of this section.
Attached Graphic
(1) In the Dallas-Fort Worth area, in accordance with
the schedule specified in §115.469(d) of this title, the limits
in Table 1 of this subsection apply.
(2) In the Houston-Galveston-Brazoria area, in accordance
with the schedule specified in §115.469(e) of this title, the
limits in Table 1 of this subsection apply.
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