Current through Register Vol. 24-06, March 15, 2024
(1) Specific
applicability. This section shall apply to surface coating of miscellaneous
metal parts and products in the following industries, if the potential
uncontrolled emissions of VOC is greater than 10 tons per year and as qualified
in WAC 173-490-205(1)(b),(c), and
(d), and
173-490-025.
(a) Miscellaneous metal parts and products
shall include:
(i) Large farm machinery
(harvesting, fertilizing and planting machines, tractors, combines,
etc.);
(ii) Small farm machinery
(lawn and garden tractors, lawn mowers, rototillers, etc.);
(iii) Small appliances (fans, mixers,
blenders, crock pots, dehumidifiers, vacuum cleaners, etc.);
(iv) Commercial machinery (office equipment,
computers and auxiliary equipment, typewriters, calculators, vending machines,
etc.);
(v) Industrial machinery
(pumps, compressors, conveyor components, fans, blowers, transformers,
etc.);
(vi) Fabricated metal
products (metal covered doors, frames, etc.); and
(vii) Any other industrial category which
coats metal parts or products under the Standard Industrial Classification Code
of Major Group 33 (primary metal industries), Major Group 34 (fabricated metal
products), Major Group 35 (nonelectric machinery), Major Group 36 (electrical
machinery), Major Group 37 (transportation equipment), Major Group 38
(miscellaneous instruments), Major Group 39 (miscellaneous manufacturing
industries), Major Group 40 (railroad transportation), and Major Group 41
(transit passenger transportation).
(b) This section is not applicable to the
surface coating of the following metal parts and products:
(i) Automobiles and light-duty
trucks;
(ii) Metal cans;
(iii) Flat metal sheets and strips in the
form of rolls or coils;
(iv) Magnet
wire for use in electrical machinery;
(v) Metal furniture;
(vi) Large appliances;
(vii) Airplanes;
(viii) Automobile refinishing;
(ix) Customized top coating of automobiles
and trucks, if production is less than thirty-five vehicles per day;
and
(x) Exterior of marine
vessels.
(c) This
chapter applies to the application area, flashoff area, air and forced air
drier, and oven used in the surface coating of the metal parts and products in
WAC 173-490-205(1)(a).
This chapter also applies to prime coat, top coat, and single coat
operations.
(d) The application of
coatings whose formulations are controlled by federal specifications and the
use of which is required by federal agencies shall be exempt from the emission
limits in WAC
173-490-205(2)(a).
(e) A case-by-case determination of the
emission controls best representing RACT may be substituted for the
requirements of WAC
173-490-205(2).
Such a determination shall be approved by ecology.
(2) Provisions for specific processes.
(a) The owner or operator of a coating
application system shall not emit a quantity of VOCs greater than those listed
by specific coating, excluding water and as delivered to the application
system:
(i)
|
Clear coatings
|
0.52 kg/liter
|
(4.3 lb/gallon)
|
(ii)
|
Extreme performance coatings
|
0.42 kg/liter
|
(3.5 lb/gallon)
|
(iii)
|
Air dried coatings
|
0.42 kg/liter
|
(3.5 lb/gallon)
|
(iv)
|
All others
|
0.36 kg/liter
|
(3.0 lb/gallon)
|
(v)
|
Powder coatings
|
0.05 kg/liter
|
(0.4 lb/gallon)
|
(b)
When more than one emission limitation listed in WAC
173-490-205(2)(a)
applies to a specific coating, the least stringent will apply.
(c) All VOC emissions from solvent washings
shall be considered in the emission limitations in WAC
173-490-205(2)(a),
unless the solvent is directed into containers that prevent evaporation into
the atmosphere.
(d) The emission
limits set forth in WAC
173-490-205(2)(a)
shall be achieved by:
(i) The application of
low solvent coating technology; or
(ii) An incineration system that oxidizes at
least ninety percent of the VOCs (VOC measured as total combustible carbon) to
carbon dioxide and water; or
(iii)
An equivalent means of VOC reduction certified by the owner(s) or operator(s)
and approved by ecology.
(e) A collection system shall be used
together with the incinerator of WAC
173-490-205(2)(d)(ii).
The design and operation of the collection system shall be consistent with good
engineering practice and provide for an overall VOC emission reduction
necessary to comply with the emission limits of WAC
173-490-205(2)(a).
The required VOC emission reduction shall be calculated on a unit volume of
uncured solids basis.
(3) Testing and monitoring.
(a) Ecology may require the owner(s) or
operator(s) of a source to demonstrate at his/her own expense, compliance by
the methods of WAC
173-490-205(3)(c).
(b) The owner(s) or operator(s) of a source
shall notify ecology at least ten days before a proposed emission certification
test so the director or a representative may observe the test.
(c) To demonstrate compliance with this
chapter, refer to WAC
173-400-105.
(d) Ecology may require monitoring of the
following parameters:
(i) Exhaust gas
temperature of all incinerators;
(ii) Temperature rise across a catalytic
incinerator bed; and
(iii)
Breakthrough of VOC on a carbon adsorption unit.
Statutory Authority:
Chapter
70.94 RCW. 91-05-064
(Order 90-06), § 173-490-205, filed 2/19/91, effective 3/22/91. Statutory
Authority:
Chapters
70.94 and
43.21A RCW. 82-16-021 (Order DE
82-22), § 173-490-205, filed 7/27/82. Statutory Authority:
RCW
70.94.331 and
70.94.395. 80-11-062 (Order DE
80-18), § 173-490-205, filed
8/20/80.