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 Applicability and Definitions), the following control
requirements apply. In Gregg, Nueces, and Victoria Counties, the control
requirements in paragraph (5) of this section apply.
(1) The owner or operator of each vehicle refinishing
(body shop) operation shall minimize volatile organic compounds (VOC)
emissions during equipment cleanup by using the following procedures:
(A) install and operate a system that totally encloses
spray guns, cups, nozzles, bowls, and other parts during washing,
rinsing, and draining procedures. Non-enclosed cleaners may be used
if the vapor pressure of the cleaning solvent is less than 100 millimeters
of mercury (mm Hg) at 20 degrees Celsius (68 degrees Fahrenheit) and
the solvent is directed towards a drain that leads directly to an
enclosed remote reservoir;
(B) keep all wash solvents in an enclosed reservoir
that is covered at all times, except when being refilled with fresh
solvents; and
(C) keep all waste solvents and other cleaning materials
in closed containers.
(2) Each vehicle refinishing (body shop) operation
must use coating application equipment with a transfer efficiency
of at least 65%, unless otherwise specified in an alternate means
of control approved by the executive director in accordance with §115.910
of this title (relating to Availability of Alternate Means of Control).
High-volume, low-pressure (HVLP) spray guns are assumed to comply
with the 65% transfer efficiency requirement.
(3) The following requirements apply to each wood furniture
manufacturing facility subject to §115.421(15) of this title
(relating to Emission Specifications).
(A) No compounds containing more than 8.0% by weight
of VOC may be used for cleaning spray booth components other than
conveyors, continuous coaters and their enclosures, and/or metal filters,
unless the spray booth is being refurbished. If the spray booth is
being refurbished, that is, the spray booth coating or other material
used to cover the booth is being replaced, no more than 1.0 gallon
of organic solvent may be used to prepare the booth prior to applying
the booth coating.
(B) Normally closed containers must be used for storage
of finishing, cleaning, and washoff materials.
(C) Conventional air spray guns may not be used for
applying finishing materials except under one or more of the following
circumstances:
(i) to apply finishing materials that have a VOC content
no greater than 1.0 kilogram of VOC per kilogram of solids (1.0 pound
of VOC per pound of solids), as delivered to the application system;
(ii) for touch-up and repair under the following circumstances:
(I) the finishing materials are applied after completion
of the finishing operation; or
(II) the finishing materials are applied after the
stain and before any other type of finishing material is applied,
and the finishing materials are applied from a container that has
a volume of no more than 2.0 gallons.
(iii) if spray is automated, that is, the spray gun
is aimed and triggered automatically, not manually;
(iv) if emissions from the finishing application station
are directed to a vapor control system;
(v) the conventional air gun is used to apply finishing
materials and the cumulative total usage of that finishing material
is no more than 5.0% of the total gallons of finishing material used
during that semiannual period; or
(vi) the conventional air gun is used to apply stain
on a part that:
(I) the production speed is too high or the part shape
is too complex for one operator to coat the part and the application
station is not large enough to accommodate an additional operator;
or
(II) the excessively large vertical spray area of the
part makes it difficult to avoid sagging or runs in the stain.
(D) All organic solvent used for line cleaning or to
clean spray guns must be pumped or drained into a normally closed
container.
(E) Emissions from washoff operations must be minimized
by:
(i) using normally closed tanks for washoff; and
(ii) minimizing dripping by tilting or rotating the
part to drain as much organic solvent as possible.
(4) The following requirements apply to each shipbuilding
and ship repair surface coating facility subject to §115.421(16)
of this title.
(A) All handling and transfer of VOC-containing materials
to and from containers, tanks, vats, drums, and piping systems must
be conducted in a manner that minimizes spills.
(B) All containers, tanks, vats, drums, and piping
systems must be free of cracks, holes, and other defects and remain
closed unless materials are being added to or removed from them.
(C) All organic solvent used for line cleaning or to
clean spray guns must be pumped or drained into a normally closed
container.
(5) The following requirements apply to each aerospace
vehicle or component coating process subject to §115.421(10)
of this title.
(A) One or more of the following application techniques
must be used to apply any primer or topcoat to aerospace vehicles
or components: flow/curtain coating; dip coating; roll coating; brush
coating; cotton-tipped swab application; electrodeposition coating;
HVLP spraying; electrostatic spraying; or other coating application
methods that achieve emission reductions equivalent to HVLP or electrostatic
spray application methods, unless one of the following situations
apply:
(i) any situation that normally requires the use of
an airbrush or an extension on the spray gun to properly reach limited
access spaces;
(ii) the application of specialty coatings;
(iii) the application of coatings that contain fillers
that adversely affect atomization with HVLP spray guns and that the
executive director has determined cannot be applied by any of the
specified application methods;
(iv) the application of coatings that normally have
a dried film thickness of less than 0.0013 centimeter (0.0005 in.)
and that the executive director has determined cannot be applied by
any of the specified application methods in this subparagraph;
(v) the use of airbrush application methods for stenciling,
lettering, and other identification markings;
(vi) the use of aerosol coating (spray paint) application
methods; and
(vii) touch-up and repair operations.
(B) Cleaning solvents used in hand-wipe cleaning operations
must meet the definition of aqueous cleaning solvent in §115.420(c)(1)(I)
of this title (relating to Surface Coating Definitions) or have a
VOC composite vapor pressure less than or equal to 45 mm Hg at 20
degrees Celsius, unless one of the following situations apply:
(i) cleaning during the manufacture, assembly, installation,
maintenance, or testing of components of breathing oxygen systems
that are exposed to the breathing oxygen;
(ii) cleaning during the manufacture, assembly, installation,
maintenance, or testing of parts, subassemblies, or assemblies that
are exposed to strong oxidizers or reducers (e.g., nitrogen tetroxide,
liquid oxygen, hydrazine);
(iii) cleaning and surface activation prior to adhesive
bonding;
(iv) cleaning of electronics parts and assemblies containing
electronics parts;
(v) cleaning of aircraft and ground support equipment
fluid systems that are exposed to the fluid, including air-to-air
heat exchangers and hydraulic fluid systems;
(vi) cleaning of fuel cells, fuel tanks, and confined
spaces;
(vii) surface cleaning of solar cells, coated optics,
and thermal control surfaces;
(viii) cleaning during fabrication, assembly, installation,
and maintenance of upholstery, curtains, carpet, and other textile
materials used on the interior of the aircraft;
(ix) cleaning of metallic and nonmetallic materials
used in honeycomb cores during the manufacture or maintenance of these
cores, and cleaning of the completed cores used in the manufacture
of aerospace vehicles or components;
(x) cleaning of aircraft transparencies, polycarbonate,
or glass substrates;
(xi) cleaning and solvent usage associated with research
and development, quality control, or laboratory testing;
(xii) cleaning operations, using nonflammable liquids,
conducted within five feet of energized electrical systems. Energized
electrical systems means any alternating current or direct current
electrical circuit on an assembled aircraft once electrical power
is connected, including interior passenger and cargo areas, wheel
wells and tail sections; and
(xiii) cleaning operations identified as essential
uses under the Montreal Protocol that the United States Environmental
Protection Agency (EPA) has allocated essential use allowances or
exemptions in 40 Code of Federal Regulations §82.4 (as amended
through May 10, 1995 (60 FR 24986)), including any future amendments
promulgated by the EPA.
(C) For cleaning solvents used in the flush cleaning
of parts, assemblies, and coating unit components, the used cleaning
solvent must be emptied into an enclosed container or collection system
that is kept closed when not in use or captured with wipers provided
they comply with the housekeeping requirements of subparagraph (E)
of this paragraph. Aqueous and semiaqueous cleaning solvents are exempt
from this subparagraph.
(D) All spray guns must be cleaned by one or more of
the following methods:
(i) enclosed spray gun cleaning system provided that
it is kept closed when not in use and leaks are repaired within 14
days from when the leak is first discovered. If the leak is not repaired
by the 15th day after detection, the solvent must be removed and the
enclosed cleaner must be shut down until the leak is repaired or its
use is permanently discontinued;
(ii) unatomized discharge of solvent into a waste container
that is kept closed when not in use;
(iii) disassembly of the spray gun and cleaning in
a vat that is kept closed when not in use; or
(iv) atomized spray into a waste container that is
fitted with a device designed to capture atomized solvent emissions.
(E) All fresh and used cleaning solvents used in solvent
cleaning operations must be stored in containers that are kept closed
at all times except when filling or emptying. Cloth and paper, or
other absorbent applicators, moistened with cleaning solvents must
be stored in closed containers. Cotton-tipped swabs used for very
small cleaning operations are exempt from this subparagraph. In addition,
the owner or operator shall implement handling and transfer procedures
to minimize spills during filling and transferring the cleaning solvent
to or from enclosed systems, vats, waste containers, and other cleaning
operation equipment that hold or store fresh or used cleaning solvents.
The requirements of this subparagraph are known collectively as housekeeping
measures. Aqueous, semiaqueous, and hydrocarbon-based cleaning solvents,
as defined in §115.420(c)(1) of this title, are exempt from this
subparagraph.
(6) Any surface coating operation in the Beaumont-Port
Arthur, Dallas-Fort Worth, El Paso, and Houston-Galveston-Brazoria
areas that becomes subject to §115.421 of this title by exceeding
the exemption limits in §115.427 of this title (relating to Exemptions)
is subject to the provisions in §115.421 of this title, 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 §115.421 of this title and one
of the following conditions is met.
(A) The project that caused the throughput or emission
rate to fall below the exemption limits in §115.427 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). If a permit by rule is available
for the project, the owner or operator shall continue to comply with §115.421
of this title for 30 days after the filing of documentation of compliance
with that permit by rule.
(B) 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.
(7) In the Dallas-Fort Worth and Houston-Galveston-Brazoria
areas, the owner or operator of a paper surface coating line subject
to this division shall implement the following work practices to limit
VOC emissions from storage, mixing, and handling of cleaning and cleaning-related
waste materials.
(A) All VOC-containing cleaning materials must be stored
in closed containers.
(B) Mixing and storage containers used for VOC-containing
materials must be kept closed at all times except when depositing
or removing these materials.
(C) Spills of VOC-containing cleaning materials must
be minimized.
(D) VOC-containing cleaning materials must be conveyed
from one location to another in closed containers or pipes.
(E) VOC emissions from the cleaning of storage, mixing,
and conveying equipment must be minimized.
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| Source Note: The provisions of this §115.422 adopted to be effective February 19, 1990, 15 TexReg 549; amended to be effective July 17, 1991, 16 TexReg 3726; amended to be effective November 1, 1991, 16 TexReg 5839; 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 March 7, 1996, 21 TexReg 1548; amended to be effective May 22, 1997, 22 TexReg 4213; amended to be effective April 7, 1998, 23 TexReg 3503; amended to be effective July 20, 2000, 25 TexReg6752; amended to be effective May 16, 2002, 27 TexReg 4113; amended to be effective December 29, 2011, 36 TexReg 8897; amended to be effective June 25, 2015, 40 TexReg 3907 |
