Current through Register Vol. 49, No. 13, September 23, 2024
Subpart 1.
Performance test methods and
procedures.
An owner or operator of a waste combustor required to conduct
performance tests for a waste combustor must use the performance test methods
and procedures specified in parts
7017.2001 to
7017.2060 except as modified in
this part. Not operating a sorbent injection system for the sole purpose of
testing to demonstrate compliance with the percent reduction standards for
sulfur dioxide and hydrogen chloride is not a modification under part
7007.0100, subpart
14.
Subp. 2.
Performance test methods for
criteria pollutants.
An owner or operator of a waste combustor required to conduct
performance tests for particulate matter, sulfur dioxide, or nitrogen oxides
must use the test methods under items A to D.
A. For particulate matter, except for Class
I, II, A, and C waste combustors, the minimum sample volume must be 1.7 dscm,
and the probe and filter holder heating systems in the sample train must be set
to provide a gas temperature no greater than 160 degrees Celsius, plus or minus
14 degrees. For Class III and IV waste combustors, the minimum sample volume
must be 0.85 dscm. Owners or operators may request approval for smaller
sampling times or volumes from the commissioner before testing, when
necessitated by process variables or site-specific limitations. An oxygen or
carbon dioxide measurement must be obtained simultaneously with each Method 5
test run for particulate matter. Particulate matter emissions, expressed in
gr/dscf, must be corrected to seven percent oxygen by using the following
formula:
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where: c7 is the concentration of
particulate matter corrected to seven percent oxygen;
c is the concentration of particulate matter as measured by
Code of Federal Regulations, title 40, part 60, Appendix A-3, Method 5, and
Code of Federal Regulations, title 40, part 51, Appendix M, Method 202,
and
%O2 is the percentage of oxygen as
measured by Code of Federal Regulations, title 40, part 60, Appendix A-2,
Method 3, as amended.
(1) Filterable
particulate matter emission is the concentration of particulate matter as
measured by Code of Federal Regulations, title 40, part 60, Appendix A-3,
Method 5, as amended.
(2) The sum
of filterable and organic condensable particulate matter is the concentration
of particulate matter as described in part
7017.2060, subpart
3, item B.
For each sample run employing Method 5 as provided in
Appendix A-3 of Code of Federal Regulations, title 40, part 60, as amended, the
emission rate must be determined using:
(a) oxygen or carbon dioxide
measurements;
(b) dry basis F
factor; and
(c) dry basis emission
rate calculation procedures in Code of Federal Regulations, title 40, part 60,
Appendix A-7, Method 19, as amended.
B. For opacity emissions, Code of Federal
Regulations, title 40, part 60, Appendix A, Method 9, as amended, must be used
to determine compliance with opacity limits.
C. For Class IV waste combustors carbon
monoxide emissions, compliance with the emission limit must be determined by
using Code of Federal Regulations, title 40, part 60, Appendix A, Method 10, as
amended.
D. For fugitive ash
emissions, Code of Federal Regulations, title 40, part 60, Appendix A, Method
22, as amended, must be used. The minimum observation time is a series of three
one-hour observations. The observation period must include times when the
facility is transferring ash from the waste combustor unit to the area where
ash is stored or loaded into containers or trucks. The average duration of
visible emissions per hour must be calculated from the three one-hour
observations. The average must be used to determine compliance with the
emission limit.
Subp. 3.
Performance test methods for other air contaminants.
If not specified in this subpart, the owner or operator must
use test methods in Code of Federal Regulations, title 40, part 60, Appendix A,
or part 61, Appendix B, as amended, or other methods determined by the
commissioner in writing to be equivalent. For class A waste combustors, other
methods used for performance testing must be approved by the Environmental
Protection Agency.
A. For hydrogen
chloride, the percentage reduction in the potential hydrogen chloride emissions
(%PHCl) is computed using the following formula:
Click to view
imagewhere Ei is the potential hydrogen
chloride emission rate measured at the control device inlet, corrected to seven
percent O2, and Eo is the
hydrogen chloride emission rate measured at the outlet of the acid gas control
device, corrected to seven percent O2.
Code of Federal Regulations, title 40, part 60, Appendix A,
Method 26 or 26A, or title 40, part 63, Appendix A, Method 320, as amended,
must be used for determining the hydrogen chloride emission rate. The minimum
sampling time is one hour. An oxygen or carbon dioxide measurement must be
obtained simultaneously with each Method 26 test run for hydrogen chloride. The
average of the hydrogen chloride emission concentration or percent reduction is
used to determine compliance.
B. For PCDD/PCDF emissions, Code of Federal
Regulations, title 40, part 60, Appendix A, Method 23, as amended, must be used
to determine compliance with the PCDD/PCDF emission limits. For Class II and A
facilities, the minimum sample time is four hours per test run. For Class III,
C, and D facilities, the minimum sample time is three hours per test run. An
oxygen or carbon dioxide measurement must be obtained simultaneously with each
Method 23 test run for PCDD/PCDF. The average of the PCDD/PCDF test runs is
used to determine compliance.
C.
For mercury, lead, and cadmium emissions, Code of Federal Regulations, title
40, part 60, Appendix A, Method 29, as amended, must be used for measuring
emissions of lead, cadmium, and mercury. The minimum sample volume is 1.7 dscm.
An oxygen or carbon dioxide measurement must be obtained simultaneously with
each Method 29 test run for lead and cadmium. The average of the lead or
cadmium emission concentrations from three test runs or more must be used to
determine compliance. The procedures in item D must be used to determine
compliance with the mercury emission limits.
D. To determine the mercury concentration,
the arithmetic average of three or more samples at the outlet of the air
pollution control device must be used. The minimum sample volume is 1.7 dscm.
The maximum sample run time is two hours. An oxygen or carbon dioxide
measurement must be obtained simultaneously with each Method 29 test run for
mercury.
To determine the percent reduction of mercury, concurrent
sampling for mercury at the inlet and outlet of the air pollution control
system must be performed at each occurrence of mercury emissions performance
testing.
Owners and operators of RDF combustors may choose to conduct
mercury emissions testing either every 90 days or every 12 months. If the owner
or operator of an RDF combustor chooses to conduct testing every 90 days, the
requirements of subitems (1) and (2) apply. If the RDF combustor chooses to
test every 12 months, the requirements of subitem (3) apply.
(1) Procedures to determine compliance with
the short-term mercury emission concentration limit are described in unit (a).
If the waste combustor does not show compliance as determined in unit (a),
compliance shall be determined as described in units (b) and (c).
(a) The waste combustor is in compliance with
the mercury concentration limit if the arithmetic average of three or more
samples is less than or equal to the applicable short-term mercury emission
concentration limit.
(b) If the
average computed in unit (a) exceeds the short-term mercury emission
concentration limit, the removal efficiency for each run must be computed as
follows:
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Where: Hgremoval efficiency is the
removal efficiency of each sample run, HGin is the
mercury concentration measured at the inlet of the air pollution control
device, and Hgoutis the mercury concentration measured
at the outlet.
(c) The waste
combustor is in compliance with the short-term mercury emission limit if the
arithmetic average of each of the removal effciencies as computed in unit (b)
is greater than or equal to 85 percent.
(2) Procedures to determine compliance with
the long-term mercury emission concentration limit are described in unit (a).
If the waste combustor does not show compliance as determined in unit (a),
compliance must be determined as described in unit (b).
(a) To determine compliance with the mercury
emission concentration limit, the arithmetic average of all mercury emission
concentrations measured in a compliance test available for the previous
calendar year must be used. Initial compliance with the long-term mercury
concentration limit must be determined upon completion of the first calendar
year. Subsequent compliance must be determined at each occurrence of mercury
emission performance testing.
(b)
If the average that was computed in unit (a) exceeds the long-term mercury
emission concentration, the removal efficiency for each run must be computed by
the equation in subitem (1), unit (b). The waste combustor is in compliance
with the long-term mercury emission limit if the arithmetic average of each of
the removal effciencies is greater than or equal to 85 percent.
(3) Owners or operators of waste
combustors combusting RDF who choose to conduct mercury emission testing every
12 months must use the procedures in this subitem to determine compliance with
mercury emission limits.
(a) The waste
combustor is in compliance with the 12-month mercury emission concentration
limit if the arithmetic average of three or more samples is less than the
12-month test interval mercury emission concentration limit.
(b) If the average computed in unit (a)
exceeds the 12-month mercury emission concentration limit, the removal
efficiency for each run must be computed by the equation in subitem (1), unit
(b). The waste combustor is in compliance with the 12-month mercury emission
limit if the arithmetic average of the removal effciencies is greater than 85
percent.
Subp.
4.
Steam flow measurement method.
The method contained in ASME PTC 4.1, section 4, incorporated
by reference in part
7011.1205, must be used for
calculating the steam flow required under part
7011.1260, subpart
3, item A, subitem (2). The
recommendations of Application: Part II of Fluid Meters, Interim Supplement
19.5 on Instruments and Apparatus, chapter 4, incorporated by reference in part
7011.1205, must be followed for
design, construction, installation, calibration, and use of nozzles and
orifces, except that measurement devices such as flow nozzles and orifces are
not required to be recalibrated after they are installed. All signal conversion
elements associated with steam flow measurements must be calibrated according
to the manufacturer's instructions before each PCDD/PCDF test, and at least
once per year. This annual calibration must be recorded in the daily operating
record as described in part
7011.1285, subpart
2.
Subp. 4a.
Alternative methods for
measuring unit load.
Alternative continuous measuring methods in place of steam
flow may be installed and operated, provided that the method continuously
measures the waste combustor unit load, is equivalent to results obtained when
using the method in subpart
4, and the use of the method
is approved by the commissioner.
Subp.
4b.
Procedures for correlating carbon dioxide and oxygen
concentrations.
If carbon dioxide is selected for use in diluent corrections,
the relationship between oxygen and carbon dioxide levels must be established
during the initial performance test according to the procedures and methods
under items A to E.
A. The fuel factor
equation in Code of Federal Regulations, title 40, part 60, Appendix A, Method
3B, must be used to determine the relationship between oxygen and carbon
dioxide at a sampling location. Method 3, 3A, or 3B must be used to determine
the oxygen concentration at the same location as the carbon dioxide
monitor.
B. Samples must be taken
for at least 30 minutes in each hour.
C. Each sample must represent a one-hour
average.
D. A minimum of three runs
must be performed.
E. The
relationship between carbon dioxide and oxygen concentrations that is
established must be submitted as part of the initial performance test
report.
Subp. 5.
Performance tests required.
Performance tests must be conducted on waste combustors to
determine the emission concentrations of the following air contaminants:
A. lead;
B. cadmium;
C. mercury; and
D. any other air contaminant for which an
emission limitation applies to the waste combustor, except for opacity and
those contaminants for which compliance is demonstrated by using a continuous
monitor.
Subp. 6.
Operation during performance testing.
The owner or operator of a waste combustor must report
operating conditions to the commissioner, including operating parameters of the
air pollution control equipment, flue gas temperatures, air flow rates, and
pressure drop across the combustion system.
Subp. 7.
Maximum demonstrated
capacity.
For Class I, II, III, A, C, and D waste combustors, maximum
demonstrated capacity of each waste combustor unit must be determined during
the initial performance test for PCDD/PCDF and each subsequent performance test
during which compliance with the PCDD/PCDF emission limit in part
7011.1225 is achieved. For Class
IV waste combustors, maximum demonstrated capacity must be determined during
the initial performance test and each subsequent performance test during which
compliance with emission limits is demonstrated.
Subp. 8.
Particulate matter control
device temperature.
The owner or operator of a waste combustor with
postcombustion particulate matter control must determine and record the
four-hour arithmetic average gas stream temperature as measured at the inlet to
each particulate matter control device during the initial and each subsequent
performance test for PCDD/PCDFs demonstrating compliance with the PCDD/PCDF
emission limit in part
7011.1225.
Subp. 9. [Repealed, 22 SR 1975 44 SR
1030]
Subp. 10.
Solid waste
composition.
Solid waste composition studies must be conducted as
described in part
7007.0501, subpart
2.
Subp. 11.
Exceedances of emission
limits.
If accurate and valid data results of a performance test
demonstrate an exceedance of a standard of performance under part
7011.1225 or in the waste
combustor's air emission facility permit after normal start-up, the waste
combustor owner or operator must take the actions in items A to D.
A. The owner or operator must immediately
report the exceedance to the commissioner and comply with the applicable
reporting provisions of part
7007.0800, subpart
6.
B. The owner or operator must take
appropriate steps to return the waste combustor to compliance and must
demonstrate compliance within 60 days of the initial report of the
exceedance.
C. If the commissioner
determines that compliance has not been achieved within 60 days of the initial
report of exceedance, the waste combustor must be shut down.
D. If shutdown was required under item C, the
waste combustor may be restarted under the conditions specified by the
commissioner. The owner or operator must notify the commissioner in writing of
the date on which the owner or operator plans to start up and to begin
compliance testing. Notification must be at least ten days in advance of the
compliance test date.
Statutory Authority: MS s
116.07
