NR 428.07(4)(d)1.
1. The unit is within a period during which it is covered by a retired unit exemption under s.
NR 409.05 that is in effect.
NR 428.07(4)(d)2.
2. The owner or operator is monitoring emissions from the unit with another certified monitoring system approved, in accordance with the applicable provisions of this subchapter, by the department for use at that unit that provides emission data for the same pollutant or data for the same parameter as the retired or discontinued monitoring system.
NR 428.07 History
History: Cr.
Register, January, 2001, No. 541, eff. 2-1-01;
CR 08-103: am. (intro.), (1) (a), (b) 1., 3., (3) and (4) (c)
Register August 2009 No. 644, eff. 9-1-09;
CR 23-017: am. (1) (a) 2. Register March 2024 No. 819, eff. 4-1-24.
NR 428.08
NR 428.08 Specific provisions for monitoring NOx and heat input for the purpose of calculating NOx emissions. NR 428.08(1)(a)
(a)
Coal-fired units. The owner or operator of a coal-fired boiler shall do one of the following:
NR 428.08(1)(a)1.
1. Meet the general operating requirements in
40 CFR 75.10 for an NO
x-diluent continuous emission monitoring system, consisting of an NO
x pollutant concentration monitor, an O
2- or CO
2-diluent gas monitor and a data acquisition and handling system, to measure NO
x emission rate, and for a flow monitoring system and an O
2- or CO
2-diluent gas monitor to measure heat input, except as provided in accordance with subpart E of
40 CFR part 75.
NR 428.08(1)(a)2.
2. Meet the general operating requirements in
40 CFR 75.10 for an NO
x concentration monitoring system, consisting of an NO
x pollutant concentration monitor and a data acquisition and handling system, to measure NO
x concentration and for a flow monitoring system. In addition, if heat input is required to be reported under this chapter, the owner or operator also shall meet the general operating requirements for a flow monitoring system and an O
2- or CO
2-diluent gas monitor to measure heat input, or, if applicable, use the procedures in Appendix D to
40 CFR part 75, incorporated by reference in s.
NR 484.04 (27). These requirements shall be met, except as provided in subpart E of
40 CFR part 75.
NR 428.08(1)(b)
(b)
Moisture correction. If a correction for the stack gas moisture content is needed to properly calculate the NO
x emission rate in pounds per million Btu, i.e., if the NO
x pollutant concentration monitor measures on a different moisture basis from the diluent monitor, or NO
x mass emissions in tons, i.e., if the NO
x concentration monitoring system or diluent monitor measures on a different moisture basis from the flow rate monitor, the owner or operator of a boiler shall account for the moisture content of the flue gas on a continuous basis in accordance with
40 CFR 75.11(b) except that the term “SO
2" shall be replaced by the term “NO
x"
.
NR 428.08(1)(c)
(c)
Gaseous fuel-fired nonpeaking units or oil-fired nonpeaking units. The owner or operator of a boiler or combustion turbine that, based on information submitted in the monitoring plan, qualifies as a gaseous fuel-fired or oil-fired unit but not as a peaking unit, as defined in
40 CFR 72.2, shall do one of the following:
NR 428.08(1)(c)2.
2. Meet the general operating requirements in
40 CFR 75.10 for an NO
x-diluent continuous emission monitoring system, except as provided in accordance with
40 CFR part 75 Subpart E, and use the procedures specified in Appendix D to
40 CFR part 75, incorporated by reference in s.
NR 484.04 (27), for determining hourly heat input.
NR 428.08(1)(d)
(d)
Gaseous fuel-fired or oil-fired peaking units. The owner or operator of a boiler or combustion turbine that qualifies as a peaking unit and as either gaseous fuel-fired or oil-fired, as defined in
40 CFR 72.2, based on information submitted in the monitoring plan, shall do one of the following:
NR 428.08(1)(d)2.
2. Use the procedures in
40 CFR part 75 Appendix D, incorporated by reference in s.
NR 484.04 (27), for determining hourly heat input and the procedures specified in
40 CFR part 75 Appendix E, incorporated by reference in s.
NR 484.04 (27), for estimating the hourly NO
x emission rate. In addition, if after certification of an excepted monitoring system under
40 CFR part 75 Appendix E, a unit's operations exceed a capacity factor of 20.0% in any calendar year or exceed a capacity factor of 10.0% averaged over 3 years, the owner or operator shall meet the requirements of par.
(c) or, if applicable, par.
(e), by no later than December 31 of the following calendar year.
NR 428.08(1)(e)
(e)
Other units. The owner or operator of a boiler or combustion turbine that combusts wood, refuse or other materials shall comply with the monitoring provisions specified in par.
(a) and, where applicable, par.
(b).
NR 428.08(2)(a)
(a)
Coal-fired units. The owner or operator of a coal-fired boiler shall do one of the following:
NR 428.08(2)(a)1.
1. Meet the general operating requirements in
40 CFR 60.13 for an NO
x-diluent continuous emission monitoring system, consisting of an NO
x pollutant concentration monitor, an O
2- or CO
2-diluent gas monitor, and a data acquisition and handling system, to measure NO
x emission rate, and for a flow monitoring system and an O
2- or CO
2-diluent gas monitor to measure heat input, except as provided in accordance with
40 CFR 60.13(i).
NR 428.08(2)(a)2.
2. Meet the general operating requirements in
40 CFR 60.13 for an NO
x concentration monitoring system, consisting of an NO
x pollutant concentration monitor and a data acquisition and handling system, to measure NO
x concentration and for a flow monitoring system. In addition, if heat input is required to be reported under this chapter, the owner or operator also shall meet the general operating requirements for a flow monitoring system and an O
2- or CO
2-diluent gas monitor to measure heat input, or, if applicable, use the procedures in Appendix E to
40 CFR part 75, incorporated by reference in s.
NR 484.04 (27). These requirements shall be met, except as provided in
40 CFR 60.13(i).
NR 428.08(2)(b)
(b)
Moisture correction. If a correction for the stack gas moisture content is needed to properly calculate the NO
x emission rate in pounds per million Btu, i.e., if the NO
x pollutant concentration monitor measures on a different moisture basis from the diluent monitor, or NO
x mass emissions in tons, i.e., if the NO
x concentration monitoring system or diluent monitor measures on a different moisture basis from the flow rate monitor, the owner or operator of an NO
x emissions unit subject to the requirements of this subchapter shall account for the moisture content of the flue gas on a continuous basis in accordance with
40 CFR 75.11(b) except that the term “SO
2" shall be replaced by the term “NO
x"
.
NR 428.08(2)(c)
(c)
Gaseous fuel-fired nonpeaking units or oil-fired nonpeaking units. The owner or operator of a boiler or combustion turbine that, based on information submitted in the monitoring plan, qualifies as a gaseous fuel-fired or oil-fired unit but not as a peaking unit, as defined in
40 CFR 72.2, shall do one of the following:
NR 428.08(2)(c)2.
2. Meet the general operating requirements in
40 CFR 60.13 for an NO
x-diluent continuous emission monitoring system, except as provided in accordance with
40 CFR 60.13(i), and use the procedures specified in Appendix D to
40 CFR part 75, incorporated by reference in s.
NR 484.04 (27), for determining hourly heat input.
NR 428.08(2)(d)
(d)
Gaseous fuel-fired or oil-fired peaking units. The owner or operator of a boiler or combustion turbine that qualifies as a peaking unit and as either gaseous fuel-fired or oil-fired, as defined in
40 CFR 72.2, based on information submitted in the monitoring plan, shall do one of the following:
NR 428.08(2)(d)2.
2. Use the procedures in
40 CFR part 75 Appendix D, incorporated by reference in s.
NR 484.04 (27), for determining hourly heat input and the procedures specified in
40 CFR part 75 Appendix E, incorporated by reference in s.
NR 484.04 (27), for estimating hourly NO
x emission rate. In addition, if after certification of an excepted monitoring system under
40 CFR part 75 Appendix E, a unit's operations exceed a capacity factor of 20.0% in any calendar year or exceed a capacity factor of 10.0% averaged over 3 years, the owner or operator shall meet the requirements of par.
(c) or, if applicable, par.
(e), by no later than December 31 of the following calendar year.
NR 428.08(2)(e)
(e)
Boilers or turbines.
The owner or operator of a boiler or combustion turbine that combusts wood, refuse or other materials shall comply with the monitoring provisions specified in par.
(a) and, where applicable, par.
(b).
NR 428.08(2)(f)
(f)
Continuous emissions monitoring. An owner or operator of an emissions unit that installs and operates a continuous NO
x emissions monitoring system according to the requirements of
40 CFR part 75 satisfies requirements of this subsection.
NR 428.08(2)(g)
(g)
Testing. An owner or operator of an emissions unit not listed under pars.
(a) to
(e) shall either install and operate a continuous NOx emissions monitoring system according to the requirements under
40 CFR part 75, or do all of the following to satisfy the requirements under this subsection:
NR 428.08(2)(g)1.
1. Keep and maintain the emissions unit manufacturer's specifications and emissions factor information for the emissions unit on-site and available for review.
NR 428.08(2)(g)3.
3. Maintain the emissions unit in accordance with the manufacturer's operation and maintenance instructions.
NR 428.08(2)(g)4.
4. Conduct an initial performance test within 180 days after initial operation and subsequent performance tests every 2 years thereafter, within 90 days of the anniversary date of the initial performance test, according to all of the following requirements, as applicable, to determine the emissions unit's NOx emissions rate for each fuel fired in the emissions unit:
NR 428.08(2)(g)4.a.
a. The emissions performance test shall be conducted according to one of the following methods as applicable: Method 7, 7A, 7B, 7C, 7D, or 7E under
40 CFR part 60, Appendix A, incorporated by reference under s.
NR 484.04 (15m) Table 2, or another method approved by the department in advance.
NR 428.08(2)(g)4.b.
b. The initial emissions performance test shall include a determination of the capacity load point of the emissions unit's maximum NOx emissions rate based on one 30 minute test run at each capacity load point for which the unit is operated, other than for startup and shutdown, in the load ranges of 25 to 50 percent, 50 to 75 percent, and 75 to 100 percent, or other load ranges approved by or required by the department in advance.
NR 428.08(2)(g)4.c.
c. The emissions performance test shall determine compliance based on the average of three test runs that are at least 60 minutes performed at the capacity load determined to have the maximum NOx emission rate under subd.
4. b. NR 428.08(2)(g)4.d.
d. An additional performance test shall be conducted according to subd.
4. b. within 90 days of completing a physical change in, or change in the method of operation that causes an increase of the hourly potential to emit of the NOx emissions rate.
NR 428.08(2)(g)4.e.
e. A performance test is not required for a fuel used only for startup or for a fuel constituting less than 1 percent on an energy equivalent basis of the emissions unit's fuel consumption within the most recent 12 consecutive month time period.
NR 428.08(3)(a)1.
1. The department may grant a written waiver of a scheduled test if any of the following apply:
NR 428.08(3)(a)1.a.
a. The direct stationary source associated with the emissions point subject to the testing requirement will be ceasing operation within one year of a scheduled test.
NR 428.08(3)(a)1.b.
b. The most recently completed results from a test conducted according to the methods and procedures specified under s.
NR 439.07 for the direct stationary source demonstrate that the emissions of the air contaminant for which compliance emissions testing is required under this section are 50 percent or less of the applicable emission limitation. If a waiver from a test is granted, the owner or operator shall then conduct the next test according to the schedule under
sub. (2) (g) 4.
NR 428.08(3)(a)1.c.
c. The direct stationary source associated with the emissions point subject to the testing requirement has not operated more than 360 hours in the 12-month period prior to the scheduled test date.
NR 428.08(3)(a)1.d.
d. The most recently completed test, conducted according to the methods and procedures specified under s.
NR 439.07, was conducted less than 12 months prior to the date that testing would be required under par.
(b).
NR 428.08(3)(a)1.e.
e. For each fuel used, the emissions unit is certified to meet emissions standards under
40 CFR part 60 that are equal to or more restrictive than the applicable emission limitation under s.
NR 428.04 or
428.05, and the emissions unit is installed and configured according to the manufacturer's specifications.
NR 428.08(3)(a)1.f.
f. The emissions unit is operated only to restart electric generation in the event of a complete loss of facility power.
NR 428.08(3)(a)1.g.
g. The emissions unit is operated no more than 500 hours per year and no more than 200 hours during the ozone season, and its only purpose is to provide electricity to a facility if normal electricity service is interrupted or to replace normal critical operations at a facility.
NR 428.08(3)(a)1.h.
h. The emissions unit's only function is to pump water in the case of a fire emergency.
NR 428.08(3)(a)1.i.
i. The emissions unit utilization is less than 10 percent of its capacity factor on an annual average basis over a 3-year rolling period and less than 20 percent of its capacity factor in any year of the 3-year rolling period and that is owned or operated by an electric generation utility or gas transmission utility.
NR 428.08(3)(a)1.L.
L. The emissions unit is a gaseous fuel fired unit used to control VOC emissions from a commercial or industrial process.
NR 428.08(3)(a)2.
2. The department may grant an extension of up to 180 days for compliance emissions testing if the owner or operator of a direct stationary source requests an extension, in writing, and can demonstrate that a representative emissions test cannot be performed within the time frame specified under sub.
(2) (g) 4. NR 428.08(3)(b)
(b) The owner or operator shall submit a request for a waiver or extension under par.
(a) 1. in writing for department review and approval at least 60 days prior to the required test date.
NR 428.08 History
History: Cr.
Register, January, 2001, No. 541, eff. 2-1-01;
CR 08-103: am. (title) and (2) (title), cr. (2) (f)
Register August 2009 No. 644, eff. 9-1-09;
CR 23-017: r. and recr. (2) (e) (title), cr. (2) (f) (title), (g), (3) Register March 2024 No. 819, eff. 4-1-24.
NR 428.09
NR 428.09 Quarterly reports. The owner or operator of a unit subject to the NO
x requirements of this subchapter shall submit quarterly reports, as required under this section.
NR 428.09(1)
(1) Units subject to an acid rain emission limitation. If a unit is subject to an acid rain emission limitation or if the owner or operator of the NO
x emissions unit chooses to meet the annual reporting requirements of this subchapter, the owner or operator shall submit a quarterly report for each calendar quarter beginning with the following quarters:
NR 428.09(1)(a)
(a) For units commencing operation prior to December 31, 2002, the calendar quarter from April 1, 2003 to June 30, 2003. Data shall be recorded and reported from the first hour on May 1, 2003.
NR 428.09(1)(b)
(b) For a unit that commences operation on or after December 31, 2002, the calendar quarter in which the unit commences operation. Data shall be reported from the date and hour corresponding to when the unit commenced operation.
NR 428.09(2)
(2) Units not subject to an acid rain emission limitation. If an NO
x emissions unit is not subject to an acid rain emission limitation, the owner or operator of the NO
x emissions source shall comply with either of the following requirements:
NR 428.09(2)(a)
(a) Meet all of the requirements of
40 CFR part 75 related to monitoring and reporting NO
x emissions during the entire year and meet the reporting deadlines specified in sub.
(1).
NR 428.09(2)(b)
(b) Submit a quarterly report for each calendar quarter, beginning with the following quarters:
NR 428.09(2)(b)1.
1. For units commencing operation prior to December 31, 2002, the calendar quarter from April 1, 2003 to June 30, 2003. Data shall be reported from the first hour of April 1, 2003.
NR 428.09(2)(b)2.
2. For units that commence operation on or after December 31, 2002, the calendar quarter in which the unit commences operation. Data shall be reported from the date and hour corresponding to when the unit commenced operation.
NR 428.09(3)
(3) Deadlines for submittals. The owner or operator of an NO
x emissions source shall submit each quarterly report to the department within 30 days following the end of the calendar quarter covered by the report according to the following schedule:
NR 428.09(3)(a)
(a) For units subject to an acid rain emissions limitation, quarterly reports shall be submitted within 30 days following the end of the calendar quarter covered by the report and include all of the data and information required in subpart G of
40 CFR part 75.
NR 428.09(3)(b)
(b) For units not subject to an acid rain emissions limitation, reports shall be submitted with the compliance reports required under the facility's operation permit.
NR 428.09(4)
(4) Compliance certification. The owner or operator of an NO
x emissions source shall submit to the department a compliance certification in support of each quarterly report based on reasonable inquiry of those persons with primary responsibility for ensuring that all of the unit's emissions are correctly and fully monitored. The certification shall state the following:
NR 428.09(4)(a)
(a) The monitoring data submitted were recorded in accordance with the applicable requirements of this subchapter, including the quality assurance procedures and specifications.
NR 428.09(4)(b)
(b) For a unit with add-on NO
x emission controls and for all hours where data are substituted in accordance with
40 CFR 75.34(a)(1), the add-on emission controls were operating within the range of parameters listed in the monitoring plan and the substitute values do not systematically underestimate NO
x emissions.
NR 428.09(4)(c)
(c) For a unit that is reporting on an ozone season basis under this subsection, the NO
x emission rate and NO
x concentration values substituted for missing data under subpart D of
40 CFR part 75 are calculated using only values from an ozone season and do not systematically underestimate NO
x emissions.
NR 428.09 History
History: Cr.
Register, January, 2001, No. 541, eff. 2-1-01;
CR 08-103: am. (2) (a)
Register August 2009 No. 644, eff. 9-1-09.
NR 428.10
NR 428.10 Petitions. The owner or operator of an NO
x emissions source may submit a petition to the department requesting approval to apply an alternative to any requirement of this subchapter. Application of an alternative to any requirement of this subchapter is in accordance with this subchapter only to the extent that the petition under this section is approved by the department.
NR 428.10 History
History: Cr.
Register, January, 2001, No. 541, eff. 2-1-01.
NR 428.11
NR 428.11 Additional requirements to provide heat input data. The owner or operator of a unit that either monitors and reports or elects to monitor and report NO
x mass emissions using an NO
x concentration system and a flow system shall also monitor and report heat input at the unit level.
NR 428.11 History
History: Cr.
Register, January, 2001, No. 541, eff. 2-1-01.
NR 428.12
NR 428.12 Alternative monitoring, recordkeeping and reporting. NR 428.12(1)(1)
RACT emissions units. The owner or operator of an NO
x emissions unit that is also subject to an emission limitation in s.
NR 428.22 may satisfy the NO
x emissions monitoring and reporting requirements of this subchapter by meeting the applicable NO
x emissions monitoring requirements in s.
NR 428.23 (1) (b) and
(2) and the recordkeeping and reporting requirements in s.
NR 428.24 (1).
NR 428.12(2)
(2) Non-RACT emissions units. The owner or operator of an NO
x emissions unit subject to an emission limitation in s.
NR 428.04 (2) or
428.05 (3) may satisfy the NO
x emissions monitoring and reporting requirements of this subchapter by meeting, as applicable by source type, the NO
x emissions monitoring requirements in s.
NR 428.23 (1) (b) and
(2) and the recordkeeping and reporting requirements in s.
NR 428.24 (1).
NR 428.12 History
History: CR 08-103: cr.
Register August 2009 No. 644, eff. 9-1-09.
NR 428.20
NR 428.20 Applicability and purpose. NR 428.20(1)(a)(a) The requirements of this subchapter apply to the owner or operator of a NO
X emissions unit that is in a source category identified under s.
NR 428.22 and that is located at a facility that meets any of the following conditions:
NR 428.20(1)(a)1.
1. The facility is located in the county of Kenosha, Milwaukee, Ozaukee, Racine, Sheboygan, Washington, or Waukesha and the maximum theoretical emissions of NOx from all emission units in all source categories identified under s.
NR 428.22 combined is equal to or greater than 100 tpy.
NR 428.20(1)(a)2.
2. The facility is located in an area that is classified as a moderate, serious, severe, or extreme ozone nonattainment area and the maximum theoretical emissions of NOx from all emission units in all source categories identified under s.
NR 428.22 combined is equal to or greater than the following:
