Current through August 26, 2024
(1) ALUMINUM SCRAP SHREDDER. The owner or
operator shall conduct performance tests to measure PM emissions at the outlet
of the control system. If visible emission observations is the selected
monitoring option, the owner or operator shall record visible emission
observations from each exhaust stack for all consecutive 6-minute periods
during the PM emission test according to the requirements of Method 9 in
Appendix A to 40 CFR part 60, incorporated by reference in s.
NR 484.04(13).
(2) THERMAL CHIP DRYER. The owner or operator
shall conduct a performance test to measure THC and D&F emissions at the
outlet of the control device while the unit processes only unpainted aluminum
chips.
(3) SCRAP DRYER,
DELACQUERING KILN AND DECOATING KILN.
(a) The
owner or operator shall conduct performance tests to measure emissions of THC,
D&F, HCl and PM at the outlet of the control device.
(b) If the scrap dryer, delacquering kiln or
decoating kiln is subject to the alternative emission limits in s.
NR 463.13(5), the average afterburner
operating temperature in each 3-hour block period shall be maintained at or
above 760°C (1400°F) for the test.
(c) The owner or operator of a scrap dryer,
delacquering kiln or decoating kiln subject to the alternative limits in s.
NR 463.13(5) shall submit a written
certification in the notification of compliance status report containing the
information required by s.
NR 463.17(2) (g).
(4) GROUP 1 FURNACE WITH ADD-ON AIR POLLUTION
CONTROL DEVICES.
(a) The owner or operator of
a group 1 furnace that processes scrap other than clean charge materials with
emissions controlled by a lime-injected fabric filter shall conduct performance
tests to measure emissions of PM and D&F at the outlet of the control
device and emissions of HCl at the outlet, for the emission limit, or the inlet
and the outlet, for the percent reduction standard.
(b) The owner or operator of a group 1
furnace that processes only clean charge materials with emissions controlled by
a lime-injected fabric filter shall conduct performance tests to measure
emissions of PM at the outlet of the control device and emissions of HCl at the
outlet, for the emission limit, or the inlet and the outlet, for the percent
reduction standard.
(c) The owner
or operator may choose to determine the rate of reactive flux addition to the
group 1 furnace and assume, for the purposes of demonstrating compliance with
the SAPU emission limit, that all reactive flux added to the group 1 furnace is
emitted. Under these circumstances, the owner or operator is not required to
conduct an emission test for HCl.
(d) The owner or operator of a sidewell group
1 furnace that conducts reactive fluxing, except for cover flux, in the hearth,
or that conducts reactive fluxing in the sidewell at times when the level of
molten metal falls below the top of the passage between the sidewell and the
hearth, shall conduct the performance tests required by par. (a) or (b), to
measure emissions from both the sidewell and the hearth.
(5) GROUP 1 FURNACE, INCLUDING MELTING AND
HOLDING FURNACES, WITHOUT ADD-ON AIR POLLUTION CONTROL DEVICES.
(a) In the site-specific monitoring plan
required by s.
NR 463.15(15), the owner or operator of
a group 1 furnace, including a melting and holding furnace, without add-on air
pollution control devices shall include data and information demonstrating
compliance with the applicable emission limits.
(b) If the group 1 furnace processes material
other than clean charge, the owner or operator shall conduct emission tests to
measure emissions of PM, HCl and D&F at the furnace exhaust
outlet.
(c) If the group 1 furnace
processes only clean charge, the owner or operator shall conduct emission tests
to simultaneously measure emissions of PM and HCl at the furnace exhaust
outlet. A D&F test is not required. Each test shall be conducted while the
group 1 furnace, including a melting and holding furnace, processes only clean
charge.
(d) The owner or operator
may choose to determine the rate of reactive flux addition to the group 1
furnace and assume, for the purposes of demonstrating compliance with the SAPU
emission limit, that all reactive flux added to the group 1 furnace is emitted.
Under these circumstances, the owner or operator is not required to conduct an
emission test for HCl.
(6) SWEAT FURNACE. The owner or operator
shall measure emissions of D&F from each sweat furnace at the outlet of the
control device except that the owner or operator is not required to conduct a
performance test to demonstrate compliance with the emission standard of s.
NR 463.13(6), provided that, on and
after the compliance date established by s.
NR 463.115, the owner or operator operates and maintains
an afterburner with a design residence time of 0.8 seconds or greater and an
operating temperature of 1600°F or greater.
(7) DROSS-ONLY FURNACE. The owner or operator
shall conduct a performance test to measure emissions of PM from each
dross-only furnace at the outlet of each control device while the unit
processes only dross and salt flux as the sole feedstock.
(8) IN-LINE FLUXER.
(a) The owner or operator of an in-line
fluxer that uses reactive flux materials shall conduct a performance test to
measure emissions of HCl and PM or otherwise demonstrate compliance in
accordance with par. (b). If the in-line fluxer is equipped with an add-on
control device, the emissions shall be measured at the outlet of the control
device.
(b) The owner or operator
may choose to limit the rate at which reactive chlorine flux is added to an
in-line fluxer and assume, for the purposes of demonstrating compliance with
the SAPU emission limit, that all chlorine in the reactive flux added to the
in-line fluxer is emitted as HCl. Under these circumstances, the owner or
operator is not required to conduct an emission test for HCl. If the owner or
operator of any in-line flux box which has no ventilation ductwork manifolded
to any outlet or emission control device chooses to demonstrate compliance with
the emission limit for HCl by limiting use of reactive chlorine flux and
assuming that all chlorine in the flux is emitted as HCl, compliance with the
HCl limit shall also constitute compliance with the emission limit for PM, and
no separate emission test for PM is required. In this case, the owner or
operator of the unvented in-line flux box shall utilize the maximum permissible
PM emission rate for the in-line flux boxes when determining the total
emissions for any SAPU which includes the flux box.
(9) ROTARY DROSS COOLER. The owner or
operator shall conduct a performance test to measure PM emissions from a rotary
dross cooler at the outlet of the control device.
(10) SECONDARY ALUMINUM PROCESSING UNIT. The
owner or operator shall conduct performance tests as described in pars. (a) to
(c). The results of the performance tests shall be used to establish emission
rates in lb/ton of feed or charge for PM and HCl and mg TEQ/Mg of feed or
charge for D&F emissions from each emission unit. These emission rates
shall be used for compliance monitoring in the calculation of the 3-day,
24-hour rolling average emission rates using the equation in s.
NR 463.15(20). A performance test is
required for:
(a) Each group 1 furnace
processing only clean charge to measure emissions of PM and either of the
following:
1. Emissions of HCl, for the
emission limit.
2. The mass flow
rate of HCl at the inlet to and outlet from the control device, for the percent
reduction standard.
(b)
Each group 1 furnace that processes scrap other than clean charge to measure
emissions of PM and D&F and either of the following:
1. Emissions of HCl, for the emission
limit.
2. The mass flow rate of HCl
at the inlet to and outlet from the control device, for the percent reduction
standard.
(c) Each
in-line fluxer to measure emissions of PM and HCl.
(11) FEED OR CHARGE WEIGHT MEASUREMENT.
During the emission tests conducted to determine compliance with emission
limits in a kg/Mg (lb/ton) format, the owner or operator of an affected source
or emission unit, subject to an emission limit in a kg/Mg (lb/ton) of feed or
charge format, shall measure, or otherwise determine, and record the total
weight of feed or charge to the affected source or emission unit for each of
the 3 test runs and calculate and record the total weight. An owner or operator
that chooses to demonstrate compliance on the basis of the aluminum production
weight shall measure the weight of aluminum produced by the emission unit or
affected source instead of the feed or charge weight.
(12) CONTINUOUS OPACITY MONITORING SYSTEM.
The owner or operator of an affected source or emission unit using a continuous
opacity monitoring system shall conduct a performance evaluation to demonstrate
compliance with Performance Specification 1 in Appendix B to 40 CFR part 60,
incorporated by reference in s.
NR 484.04(21). Following the performance
evaluation, the owner or operator shall measure and record the opacity of
emissions from each exhaust stack for all consecutive 6-minute periods during
the PM emission test.
(13)
AFTERBURNER. The owner or operator of an affected source using an afterburner
to comply with the requirements of this subchapter shall do both of the
following:
(a) Prior to the initial
performance test, the owner or operator shall conduct a performance evaluation
for the temperature monitoring device according to the requirements of s.
NR 460.07.
(b) The owner or operator shall use the
following procedures to establish an operating parameter value or range for the
afterburner operating temperature:
1.
Continuously measure and record the operating temperature of each afterburner
every 15 minutes during the THC and D&F performance tests.
2. Determine and record the 15-minute block
average temperatures for the 3 test runs.
3. Determine and record the 3-hour block
average temperature measurements for the 3 test runs.
(14) INLET GAS TEMPERATURE. The
owner or operator of a scrap dryer, delacquering kiln or decoating kiln or a
group 1 furnace using a lime-injected fabric filter shall use the following
procedures to establish an operating parameter value or range for the inlet gas
temperature:
(a) Continuously measure and
record the temperature at the inlet to the lime-injected fabric filter every 15
minutes during the HCl and D&F performance tests.
(b) Determine and record the 15-minute block
average temperatures for the 3 test runs.
(c) Determine and record the 3-hour block
average of the recorded temperature measurements for the 3 test runs.
(15) FLUX INJECTION RATE. The
owner or operator shall use the following procedures to establish an operating
parameter value or range for the total reactive chlorine flux injection rate:
(a) Continuously measure and record the
weight of gaseous or liquid reactive flux injected for each 15-minute period
during the HCl and D&F tests, determine and record the 15-minute block
average weights, and calculate and record the total weight of the gaseous or
liquid reactive flux for the 3 test runs.
(b) Record the identity, composition and
total weight of each addition of solid reactive flux for the 3 test
runs.
(c) Determine the total
reactive chlorine flux injection rate by adding the recorded measurement of the
total weight of chlorine in the gaseous or liquid reactive flux injected and
the total weight of chlorine in the solid reactive flux using Equation 5:
See
Image
where:
Wt is the total chlorine usage, by
weight
F1 is the faction of gaseous or
liquid flux that is chlorine
W1 is the weight of reactive flux
gas injected
F2 is the fraction of solid reactive
chloride flux that is chlorine
Note: For example, F2 is equal to
0.75 for magnesium chloride
W2 is the weight of solid reactive
flux
(d) Divide the weight
of total chlorine usage (Wt) for the 3 test runs by the
recorded measurement of the total weight of feed for the 3 test runs.
(e) If a solid reactive flux other than
magnesium chloride is used, the owner or operator shall derive the appropriate
proportion factor subject to approval by the department.
(16) LIME INJECTION. The owner or operator of
an affected source or emission unit using a lime-injected fabric filter system
shall use the following procedures during the HCl and D&F tests to
establish an operating parameter value for the feeder setting for each
operating cycle or time period used in the performance test:
(a) For continuous lime injection systems,
ensure that lime in the feed hopper or silo is free-flowing at all
times.
(b) Record the feeder
setting for the 3 test runs. If the feed rate setting varies during the runs,
determine and record the average feed rate from the 3 runs.
(17) BAG LEAK DETECTION SYSTEM.
The owner or operator of an affected source or emission unit using a bag leak
detection system shall submit the information described in s.
NR 463.17(2) (f) as part of the
notification of compliance status report to document conformance with the
specifications and requirements in s.
NR 463.15(6).
(18) LABELING. The owner or operator of each
scrap dryer, delacquering kiln or decoating kiln, group 1 furnace, group 2
furnace and in-line fluxer shall submit the information described in s.
NR 463.17(2) (c) as part of the
notification of compliance status report to document conformance with the
operational standard in s.
NR 463.14(2).
(19) CAPTURE AND COLLECTION SYSTEM. The owner
or operator of a new or existing affected source or emission unit with an
add-on control device shall submit the information described in s.
NR 463.17(2) (b) as part of the
notification of compliance status report to document conformance with the
operational standard in s.
NR 463.14(3).
