Current through August 26, 2024
(1) Except as provided in sub. (7), each
owner or operator of a batch vapor or in-line solvent cleaning machine
complying with the equipment standards in s.
NR 469.04(2) (a) 1. or (b) 1. or (3) (a) 1. or (b)
1. shall conduct monitoring and record the
results on a weekly basis for the control devices, as appropriate, specified in
pars. (a) to (e).
(a) If a freeboard
refrigeration device is used to comply with these standards, the owner or
operator shall use a thermometer or thermocouple to measure the temperature at
the center of the air blanket during the idling mode.
(b) If a superheated vapor system is used to
comply with these standards, the owner or operator shall use a thermometer or
thermocouple to measure the temperature at the center of the superheated
solvent vapor zone while the solvent cleaning machine is in the idling
mode.
(c) If a squeegee system, air
knife system or combination squeegee and air knife system is used to comply
with the requirements of s.
NR 469.073 or 469.077, the owner or operator shall
visually inspect the continuous web part exiting the solvent cleaning machine
to ensure that no solvent film is visible on the part.
(d) Except as provided in par. (e), if a
superheated part system is used to comply with the requirements of s.
NR 469.073 or 469.077, the owner or operator shall
use a thermometer, thermocouple or other temperature measurement device to
measure the temperature of the continuous web part while it is in the solvent
cleaning machine. The measurement may also be taken at the exit of the solvent
cleaning machine.
(e) As an
alternative to complying with par. (d), the owner or operator may provide data,
sufficient to satisfy the department, that demonstrate that the part
temperature remains above the boiling point of the solvent at all times that
the part is within the continuous web solvent cleaning machine. These data
could include design and operating conditions such as information supporting
any exothermic reaction inherent in the processing.
(2) Except as provided in sub. (7), each
owner or operator of a batch vapor or in-line solvent cleaning machine
complying with the equipment standards of s.
NR 469.04(2) (a) 1. or (b) 1. or (3) (a) 1. or (b)
1. shall conduct monitoring and record the
results on a monthly basis for the control devices, as appropriate, specified
in pars. (a) and (b).
(a) If a working-mode,
downtime-mode or idling-mode cover is used to comply with these standards, the
owner or operator shall conduct a visual inspection to determine if the cover
is opening and closing properly, completely covers the cleaning machine
openings when closed, and is free of cracks, holes and other defects.
(b) If dwell is used, the owner or operator
shall determine the actual dwell time by measuring the period of time that
parts are held within the freeboard area of the solvent cleaning machine after
cleaning.
(3) Except as
provided in sub. (7), each owner or operator of a batch vapor or in-line
solvent cleaning machine complying with the equipment or idling emission
standards in ss.
NR 469.04 to shallmonitor 469.07 the hoist speed as
described in pars. (a) to (d).
(a) The owner
or operator shall determine the hoist speed by measuring the time it takes for
the hoist to travel a measured distance. The speed is equal to the distance in
meters (feet) divided by the time in minutes (meters per minute or feet per
minute).
(b) The monitoring shall
be conducted monthly. If after the first year, no exceedances of the hoist
speed are measured, the owner or operator may begin monitoring the hoist speed
quarterly.
(c) If an exceedance of
the hoist speed occurs during quarterly monitoring, the monitoring frequency
shall return to monthly until another year of compliance without an exceedance
is demonstrated.
(d) If an owner or
operator can demonstrate to the department's satisfaction in the initial
compliance report that the hoist cannot exceed a speed of 3.4 meters per minute
(11 feet per minute), the required monitoring frequency shall be quarterly,
including during the first year of compliance.
(4) Except as provided in sub. (7), each
owner or operator of a batch vapor or in-line solvent cleaning machine
complying with the equipment standards in s.
NR 469.04(2) (a) 1. or (b) 1. or (3) (a) 1. or (b)
1. using a reduced room draft shall conduct
monitoring and record the results as specified in par. (a) or (b).
(a) If the reduced room draft is maintained
by controlling room parameters by redirecting fans, closing doors and windows,
etc., the owner or operator shall conduct an initial monitoring test of the
wind speed and of room parameters, quarterly monitoring of wind speed and
weekly monitoring of room parameters as specified in subds. 1. and 2.
1. Measure the wind speed within 15.2
centimeters (6 inches) above the top of the freeboard area of the solvent
cleaning machine using the following procedure:
a. Determine the direction of the wind
current by slowly rotating a velometer or similar device until the maximum
speed is located.
b. Orient a
velometer in the direction of the wind current at each of the 4 corners of the
machine.
c. Record the reading for
each corner.
d. Average the values
obtained at each corner and record the average wind speed.
2. Monitor on a weekly basis the room
parameters established during the initial compliance test that are used to
achieve the reduced room draft.
(b) If a full or partial enclosure is used to
achieve a reduced room draft, the owner or operator shall conduct an initial
monitoring test and, thereafter, monthly monitoring tests of the wind speed
within the enclosure using the procedure specified in subds. 1. and 2. and a
monthly visual inspection of the enclosure to determine if it is free of
cracks, holes and other defects.
1. Determine
the direction of the wind current in the enclosure by slowly rotating a
velometer inside the entrance to the enclosure until the maximum speed is
located.
2. Record the maximum wind
speed.
(5)
Except as provided in sub. (7), each owner or operator using a carbon adsorber
to comply with this chapter shall measure and record the concentration of each
halogenated HAP compound in the exhaust of the carbon adsorber weekly with a
colorimetric detector tube. This test shall be conducted while the solvent
cleaning machine is in the working mode and is venting to the carbon adsorber.
The exhaust concentration shall be determined using the procedure specified in
pars. (a) to (c).
(a) Use a colorimetric
detector tube designed to measure a concentration of 100 parts per million by
volume of the particular halogenated HAP compound in air to an accuracy of " 25
parts per million by volume. If the cleaning machine uses solvent that contains
two or more halogenated HAP compounds, use one compound-specific colorimetric
detector tube per halogenated HAP compound.
(b) Use the colorimetric detector tubes
according to the manufacturer's instructions.
(c) Provide a sampling port for monitoring
within the exhaust outlet of the carbon adsorber that is easily accessible and
located at least 8 stack or duct diameters downstream from any flow disturbance
such as a bend, expansion, contraction or outlet; downstream from no other
inlet; and at least 2 stack or duct diameters upstream from any flow
disturbance such as a bend, expansion, contraction, inlet or outlet.
(6) Each owner or operator of a
batch vapor or in-line solvent cleaning machine complying with the idling
emission limit standards of s.
NR 469.04(2) (a) 2. or (b) 2. or (3) (a) 2. or (b)
2. shall comply with the requirements
specified in pars. (a) and (b).
(a) If using
controls listed in subs. (1) to (5), the owner or operator shall comply with
the monitoring frequency requirements in subs. (1) to (5).
(b) If using controls not listed in subs. (1)
to (5), the owner or operator shall establish the monitoring frequency for each
control and submit it to the department for approval in the test report
specified in s.
NR 469.12(3)
(f).
(7) Each owner or operator using a control
device listed in subs. (1) to (5) may use alternative monitoring methods and
procedures as specified in s.
NR 460.07(6).
