Current through Register Vol. 24-24, December 15, 2024
590.1
Applicability. This section applies to all dry cleaning systems using
perchloroethylene.
590.2
Definitions.
AREA SOURCE - Any perchloroethylene
dry cleaning facility that does not have the potential to emit more that 10
tons per year of perchloroethylene to the atmosphere.
BIWEEKLY - Any 14-day period of
time.
CARBON ADSORBER - A bed of activated
carbon into which an air-perchloroethylene gas-vapor stream is routed and which
adsorbs the perchloroethylene on the carbon.
DESORPTION - Regeneration of a carbon
adsorber by removal of the perchloroethylene adsorbed onto the carbon.
HALOGENATED HYDROCARBON DETECTOR - A
portable device capable of detecting vapor concentrations of perchloroethylene
of 25 parts per million by volume and indicating a concentration of 25 parts
per million by volume or greater by emitting an audible or visual signal that
varies as the concentration changes.
PERCEPTIBLE LEAKS - Any
perchloroethylene vapor or liquid leaks that are obvious from:
a. The odor of perchloroethylene;
or
b. Visual observation, such as
pools or droplets of liquid; or
c.
The detection of gas flow by passing fingers over the surface of equipment.
PERCHLOROETHYLENE GAS ANALYZER - A
flame ionization detector, photoionization detector, or infrared analyzer
capable of detecting vapor concentrations of perchloroethylene of 25 parts per
million by volume.
RECONSTRUCTION - For the purpose of
Section 590, means the replacement of any components of a dry cleaning system
to such an extent that the fixed capital cost of the new components exceeds 50
percent of the fixed capital cost that would be required to construct a
comparable new dry cleaning system.
RESIDENCE - Any dwelling or housing in
which people reside excluding short-term housing that is occupied by the same
person for a period of less than 180 days (such as a hotel room).
VAPOR LEAK - A perchloroethylene vapor
concentration exceeding 25 parts per million by volume (50 parts per volume as
methane) as indicated by a halogenated hydrocarbon detector or
perchloroethylene gas analyzer.
590.3 Machine Design.
a. It shall be unlawful for any person to
cause or allow the operation of a perchloroethylene dry cleaning system unless
all the air-perchloroethylene gas-vapor stream is vented through a carbon
adsorber or refrigerated condenser. Dry cleaning machines installed between
September 21, 1993 and December 21, 2005 shall use a refrigerated condenser,
and shall comply with 590.41(a).
b.
The owner of operator of each dry cleaning system installed after December 21,
2005, at an area source shall route the air-perchloroethylene gas-vapor stream
contained within each dry cleaning machine through a refrigerated condenser and
pass the air-perchloroethylene gas-vapor stream from inside the dry cleaning
machine drum through a non-vented carbon absorber or equivalent control device
immediately before the door of the dry cleaning machine is opened. The carbon
absorber must be desorbed in accordance with manufacturer's
instructions.
c. All dry cleaning
machines shall use a refrigerated condenser and a carbon adsorber as described
in 590.2(b), and shall comply with 590.41(b) by July 28, 2008.
590.4 General Operation and
Maintenance Requirements. It shall be unlawful for any person to cause or allow
the operation of any perchloroethylene dry cleaning system unless all of the
following conditions are met:
590.41 Leak
Detection and Repair
a. Conduct a visual
inspection of the dry cleaning system at least once a week for perceptible
leaks while the system is operating.
b. An inspection must include an examination
of these components for condition and perceptible leaks
1. Hose and pipe connections, fittings,
couplings, and valves;
2. Door
gaskets and seats;
3. Filter
gaskets and seats;
5. Solvent tanks and
containers;
9. Cartridge filter housings.
c. Conduct vapor leak inspections
monthly while the dry cleaning system is running using a halogenated
hydrocarbon detector or perchloroethylene gas analyzer that is operated
according to the manufacturer's instructions. The operator shall place the
probe inlet at the surface of each component interface where leakage could
occur and move it slowly along the interface periphery. Any inspection
conducted according to this paragraph shall satisfy the requirements to conduct
an inspection for perceptible leaks as described in 590.41(a).
d. All perchloroethylene dry cleaning systems
shall be in compliance with 590.41(c) by July 28, 2008.
e. All perceptible and/or vapor leaks shall
be repaired within 24 hours of detection. If repair parts must be ordered to
repair a leak, the parts shall be ordered within 2 working days of detecting
the leak, and the repair parts shall be installed within 5 working days after
receipt.
590.42 Drain
cartridge filters in their housing or other sealed container for at least 24
hours before discarding the cartridges;
590.43 Close the door of each dry cleaning
machine except when transferring articles to or from the machine;
590.44 Store all perchloroethylene, and
wastes containing perchloroethylene, in a closed container; and
590.45 Operate and maintain the dry cleaning
system according to the manufacturer's specifications and
recommendations.
590.46 Keep a copy
on-site of the design specifications and operating manuals for all dry cleaning
equipment.
590.47 Keep a copy
on-site of the design specifications and operating manuals for all emission
control devices.
590.5
Requirements for Refrigerated Condensers. It shall be unlawful for any person
to cause or allow the operation of any perchloroethylene dry cleaning system
using a refrigerated condenser unless all of the following conditions are met:
590.51 The air temperature at the outlet of
the refrigerated condenser installed on a dry-to-dry machine must reach
45°F (7°C) or less during the cool-down period. Compliance shall be
determined by continuously monitoring the outlet temperature during the
cool-down period using a permanently installed temperature sensor that is
accurate to within 2°F (1°C);
590.52 The difference between the air
temperature at the inlet and outlet of a refrigerated condenser installed on a
washer must be greater than or equal to 20°F(11°C). Compliance shall be
determined by continuously monitoring the inlet and outlet temperatures during
the cool-down period using permanently installed temperature sensors that are
accurate to within 2°F(1°C);
590.53 The refrigerated condenser shall be
operated so that air drawn into the dry cleaning machine does not pass through
the refrigerated condenser when the door of the machine is open; and
590.54 The refrigerated condenser shall not
vent the air-perchloroethylene gas-vapor stream while the dry cleaning machine
drum is rotating.
590.6
Requirements for Carbon Adsorbers. It shall be unlawful for any person to cause
or allow the operation of any perchloroethylene dry cleaning system using a
carbon adsorber unless all of the following conditions are met:
590.61 The concentration of perchloroethylene
at the exhaust of the carbon adsorber shall not exceed 100 ppm while the dry
cleaning machine is venting to the carbon adsorber at the end of the last dry
cleaning cycle prior to desorption of the carbon adsorber; and
590.62 Compliance shall be determined by
weekly measurements of the concentration of perchloroethylene at the outlet of
the carbon adsorber using a halogenated hydrocarbon detector or
perchloroethylene gas analyzer that is accurate to within 25 ppm.
590.7 Recordkeeping. Each dry
cleaning facility shall have an Operation and Maintenance Plan and the
following records which shall be kept on-site and available for inspection upon
request by the NWCAA.
590.71 A record of dates
and results of all monitoring, inspections, and repair of the dry cleaning
system.
590.72 If a refrigerated
condenser is used on a dry-to-dry machine, a weekly record of the air
temperature measured at the outlet of the refrigerated condenser during the
cool-down period to verify compliance with Subsection 590.51.
590.73 If a carbon adsorber is used on a dry
cleaning system, a weekly record of outlet perchloroethylene concentration to
verify compliance with 590.61.
590.74 A record of the volume of
perchloroethylene purchased each month including receipts of perchloroethylene
purchases and a calculation of the amount of perchloroethylene purchased over
the previous 12 months. All receipts of perchloroethylene purchases must be
retained for 5 years.
590.8 Prohibitions.
a. It shall be unlawful to operate a
multi-machine dry cleaning operation in which washing and drying are performed
in different machines (transfer system) after December 31, 1999.
b. After July 27, 2006 it shall be unlawful
to install or reconstruct a dry cleaning system in a building with a
residence.
c. After December 21,
2020, it shall be unlawful to operate a dry cleaning system that is located in
a building with a residence.
590.9 Major Source Requirements. If the dry
cleaning system is located at a facility that emits 10 tons or more of
perchloroethylene annually, the facility must meet the additional requirements
set forth in 40 CFR Part 63, Subpart M.
590.10 New sources subject to Section 590 that begin operation after October 1, 2007 shall notify the NWCAA within thirty
(30) days of start-up. This notice shall include the name and address of the
facility, its owner and or operator, and a statement on the facility's status
of compliance with this section.
