Current through Reg. 49, No. 52; December 27, 2024
Surface coating or stripping facilities, excluding vehicle
repair and refinishing shops, shall meet the following conditions of this
section to be permitted by rule.
(1)
This section does not cover metalizing (spraying molten metal onto a surface to
form a coating). However, this section does cover the use of coatings which
contain metallic pigments.
(2) All
facilities covered by this section at a site shall implement good housekeeping
procedures to minimize fugitive emissions, including the following.
(A) All spills shall be cleaned up
immediately.
(B) The booth or work
area exhaust fans shall be operating when cleaning spray guns and other
equipment.
(C) All new and used
coatings and solvents shall be stored in closed containers. All waste coatings
and solvents shall be removed from the site by an authorized disposal service
or disposed of at a permitted on-site waste management facility.
(3) Drying or curing ovens shall
either be electric or meet the following conditions:
(A) The maximum heat input to any oven must
not exceed 40 million British thermal units per hour (Btu/hr).
(B) Heat shall be provided by the combustion
of one of the following: sweet natural gas; liquid petroleum gas; fuel gas
containing no more than 5.0 grains of total sulfur compounds (calculated as
sulfur) per 100 dry standard cubic foot; or Number 2 fuel oil with not more
than 0.3% sulfur by weight.
(4) No add-on control equipment shall be used
to meet the emissions limits of this section. The total uncontrolled emissions
from the coating materials (as applied) and cleanup solvents shall not exceed
the following for all operations:
(A) 25 tons
per year (tpy) of volatile organic compounds (VOC) and ten tpy of exempt
solvents for all surface coating and stripping operations covered by section at
a site;
(B) 30 pounds per hour
(lb/hr) of VOC and 5.0 lb/hr of exempt solvents for all surface coating and
stripping operations covered by this section at a site;
(C) if emissions are less than 0.25 lb/hr of
VOC and/or exempt solvents, a facility is exempt from the remaining
requirements of this section, including paragraphs (5) - (9) of this
section.
(5) Opacity of
visible emissions shall not exceed 5.0%. Compliance shall be determined by the
United States Environmental Protection Agency Method 9 averaged over a
six-minute period.
(6) The
following conditions apply to surface coating operations performed indoors, in
a booth, or in an enclosed work area:
(A) no
more than six lb/hr of VOC emissions, averaged over any five-hour period, and
500 pounds per week per booth or enclosed work area;
(B) minimum face velocity at the intake
opening of each booth or work area is 100 feet per minute (ft/min). Emissions
shall be exhausted through elevated stacks that extend at least 1.5 times the
building height above ground level. All stacks shall discharge vertically; rain
protection shall not restrict or obstruct vertical flow;
(C) for spraying operations, emissions of
particulate matter must be controlled using either a water wash system or a dry
filter system with a 95% removal efficiency as documented by the manufacturer.
The face velocity at the filter shall not exceed 250 ft/min or that specified
by the filter manufacturer, whichever is less. Filters shall be replaced
whenever the pressure drop across the filter no longer meets the manufacturer's
recommendation.
(7) For
surface coating operations that are performed outdoors or in a non-enclosed
work area, or for indoor operations that do not meet the conditions of
paragraph (6) of this section, the following conditions apply.
(A) No more than six lb/hr of VOC emissions,
averaged over any five-hour period, and 500 pounds per week shall be emitted at
any time for all operations authorized by this paragraph.
(B) If coatings applied with spray equipment
contain more than 0.1% by weight of chromates, lead, cadmium, selenium,
strontium, or cobalt, then total VOC emissions shall be further limited to 240
pounds per week and 2,000 pounds per year. If coatings are applied with
non-spray equipment (such as brushes, rollers, dipping or flow coating), the
additional restrictions in this paragraph do not apply.
(C) Coating operations shall be conducted at
least 50 feet from the property line and at least 250 feet from any
recreational area, residence, or other structure not occupied or used solely by
the owner or operator of the facility or the owner of the property upon which
the facility is located.
(D) Before
construction of the facility begins, written site approval shall be received
from the appropriate regional office of the commission or any local program
having jurisdiction.
(8)
The following records shall be maintained at the plant site for the most recent
24 months and be made immediately available to the commission or any pollution
control agency with jurisdiction:
(A) material
safety data sheets for all coating materials and solvents;
(B) data of daily coatings and solvent use
and the actual hours of operation of each coating or stripping
operation;
(C) a monthly report
that represents actual hours of operation each day, and emissions from each
operation in the following categories:
(iii) pounds per week;
and
(iv) tons emitted from the site
during the previous 12 months;
(D) examples of the method of data reduction
including units, conversion factors, assumptions, and the basis of the
assumptions.
(9) Before
construction begins, the facility shall be registered with the commission using
Form PI-7.
