Hro is the heat input from combustion of residual oil, J (million Btu)
ELc is the appropriate emission limit from the table in par. (a) for combustion of coal
Hc is the heat input from combustion of coal, J (million Btu)
NR 440.205(5)(c)(c) Except as provided under par. (L), on and after the date on which the initial performance test is completed or is required to be completed under s. NR 440.08, whichever comes first, no owner or operator of an affected facility that simultaneously combusts coal or oil, or a mixture of these fuels with natural gas, and wood, municipal-type solid waste or any other fuel may cause to be discharged into the atmosphere any gases that contain nitrogen oxides in excess of the emission limit for the coal or oil, or mixture of these fuels with natural gas, combusted in the affected facility, as determined pursuant to par. (a) or (b), unless the affected facility has an annual capacity factor for coal or oil, or mixture of these fuels with natural gas of 10% (0.10) or less and is subject to a federally enforceable requirement that limits operation of the affected facility to an annual capacity factor of 10% (0.10) or less for coal, oil or a mixture of these fuels with natural gas. NR 440.205(5)(d)(d) On and after the date on which the initial performance test is completed or is required to be completed under s. NR 440.08, whichever date comes first, no owner or operator of an affected facility that simultaneously combusts natural gas with wood, municipal-type solid waste, or other solid fuel, except coal, may cause to be discharged into the atmosphere from that affected facility any gases that contain nitrogen oxides in excess of 130 ng/J (0.30 lb/million Btu) heat input unless the affected facility has an annual capacity factor for natural gas of 10% (0.10) or less and is subject to a federally enforceable requirement that limits operation of the affected facility to an annual capacity factor of 10% (0.10) or less for natural gas. NR 440.205(5)(e)(e) Except as provided under par. (L), on and after the date on which the initial performance test is completed or is required to be completed under s. NR 440.08, whichever date comes first, no owner or operator of an affected facility that simultaneously combusts coal, oil or natural gas with byproduct/waste may cause to be discharged into the atmosphere from that affected facility any gases that contain nitrogen oxides in excess of an emission limit determined by the following formula unless the affected facility has an annual capacity factor for coal, oil and natural gas of 10% (0.10) or less and is subject to a federally enforceable requirement which limits operation of the affected facility to an annual capacity factor of 10% (0.10) or less: where:
En is the nitrogen oxides emission limit (expressed as NO2), ng/J (lb/million Btu)
ELgo is the appropriate emission limit from the table in par. (a) for combustion of natural gas or distillate oil, ng/J (lb/million Btu)
Hgo is the heat input from combustion of natural gas, distillate oil and gaseous byproduct/waste, J (million Btu)
ELro is the appropriate emission limit from the table in par. (a) for combustion of residual oil, ng/J (lb/million Btu)
Hro is the heat input from combustion of residual oil or liquid byproduct/waste, J (million Btu)
ELc is the appropriate emission limit from the table in par. (a) for combustion of coal
Hc is the heat input from combustion of coal, J (million Btu)
NR 440.205(5)(f)(f) Any owner or operator of an affected facility that combusts byproduct/waste with either natural gas or oil may petition the administrator within 180 days of the initial startup of the affected facility to establish a nitrogen oxide emission limit which shall apply specifically to that affected facility when the byproduct/waste is combusted. The petition shall include sufficient and appropriate data, as determined by the administrator, such as nitrogen oxides emissions from the affected facility, waste composition (including nitrogen content), and combustion conditions to allow the administrator to confirm that the affected facility is unable to comply with the emission limits in par. (e) and to determine the appropriate emission limit for the affected facility. NR 440.205(5)(f)1.1. Any owner or operator of an affected facility petitioning for a facility-specific nitrogen oxides emission limit under this subsection shall: NR 440.205(5)(f)1.a.a. Demonstrate compliance with the emission limits in the par. (a) table for natural gas and distillate oil or for residual oil as appropriate, by conducting a 30-day performance test as provided in sub. (7) (e). During the performance test only natural gas, distillate oil, or residual oil shall be combusted in the affected facility; and NR 440.205(5)(f)1.b.b. Demonstrate that the affected facility is unable to comply with the emission limits in the par. (a) table for natural gas and distillate oil or for residual oil as appropriate, when gaseous or liquid byproduct/waste is combusted in the affected facility under the same conditions and using the same technological system of emission reduction applied when demonstrating compliance under subd. 1. a. NR 440.205(5)(f)2.2. The nitrogen oxides emission limits in the par. (a) table for natural gas or distillate oil or for residual oil, as appropriate, shall be applicable to the affected facility until and unless the petition is approved by the administrator. If the petition is approved by the administrator, a facility-specific nitrogen oxides emission limit will be established at the nitrogen oxides emission level achievable when the affected facility is combusting oil or natural gas and byproduct/waste in a manner which the administrator determines to be consistent with minimizing nitrogen oxides emissions. NR 440.205(5)(g)(g) Any owner or operator of an affected facility that combusts hazardous waste, as defined by 40 CFR part 261 or 40 CFR part 761, as in effect on July 1, 1994, with natural gas or oil may petition the administrator within 180 days of the initial startup of the affected facility for a waiver from compliance with the nitrogen oxides emission limit which applies specifically to that affected facility. The petition shall include sufficient and appropriate data, as determined by the administrator, on nitrogen oxides emissions from the affected facility, waste destruction efficiencies, waste composition (including nitrogen content), the quantity of specific wastes to be combusted and combustion conditions, to allow the administrator to determine if the affected facility is able to comply with the nitrogen oxides emission limits required by this subsection. The owner or operator of the affected facility shall demonstrate that when hazardous waste is combusted in the affected facility, thermal destruction efficiency requirements for hazardous waste specified in an applicable federally enforceable requirement preclude compliance with the nitrogen oxides emission limits of this subsection. The nitrogen oxides emission limits in the par. (a) table for natural gas or distillate oil or for residual oil, as appropriate, are applicable to the affected facility until and unless the petition is approved by the administrator. NR 440.205 NoteNote: See 40 CFR 761.70 for regulations applicable to the incineration of materials containing polychlorinated biphenyls (PCBs). NR 440.205(5)(h)(h) For purposes of par. (i), the nitrogen oxide standards under this subsection apply at all times including periods of startup, shutdown or malfunction. NR 440.205(5)(i)(i) Except as provided under par. (j), compliance with the emission limits under this subsection is determined on a 30-day rolling average basis. NR 440.205(5)(j)(j) Compliance with the emission limits under this subsection is determined on a 24-hour average basis for the initial performance test and on a 3-hour average basis for subsequent performance tests for any affected facilities that: NR 440.205(5)(j)1.1. Combust, alone or in combination, only natural gas, distillate oil or residual oil with a nitrogen content of 0.30 weight percent or less; NR 440.205(5)(j)2.2. Have a combined annual capacity factor of 10% or less for natural gas, distillate oil and residual oil with a nitrogen content of 0.30 weight percent or less, and NR 440.205(5)(j)3.3. Are subject to a federally enforceable requirement limiting operation of the affected facility to the firing of natural gas, distillate oil and/or residual oil with a nitrogen content of 0.30 weight percent or less and limiting operation of the affected facility to a combined annual capacity factor of 10% or less for natural gas, distillate oil and residual oil and a nitrogen content of 0.30 weight percent or less. NR 440.205(5)(k)(k) Affected facilities that meet the criteria described in par. (j) 1., 2., and 3., and that have a heat input capacity of 73 MW (250 million Btu/hour) or less, are not subject to the nitrogen oxides emission limits under this subsection. NR 440.205(5)(L)(L) On and after the date on which the initial performance test is completed or is required to be completed under s. NR 440.08, whichever date comes first, no owner or operator of an affected facility which commenced construction, modification or reconstruction after July 9, 1997 may cause to be discharged into the atmosphere from that affected facility any gases that contain nitrogen oxides (expressed as NO2) in excess of one of the following limits: NR 440.205(5)(L)1.1. If the affected facility combusts coal, oil or natural gas, or a mixture of these fuels, or with any other fuels: a limit of 86 ng/J (0.20 lb/million Btu) heat input unless the affected facility has an annual capacity factor for coal, oil and natural gas of 10% (0.10) or less and is subject to a federally enforceable requirement that limits operation of the facility to an annual capacity factor of 10% (0.10) or less for coal, oil and natural gas. NR 440.205(5)(L)2.2. If the affected facility has a low heat release rate and combusts natural gas or distillate oil in excess of 30% of the heat input from the combustion of all fuels, a limit determined by use of the following formula: En = [(0.10 * Hgo) + (0.20 * Hr)]/(Hgo + Hr)
where:
En is the NOx emission limit, (lb/million Btu)
Hgo is the heat input from combustion of natural gas or distillate oil
Hr is the heat input from combustion of any other fuel
NR 440.205(6)(6) Compliance and performance test methods and procedures for sulfur dioxide. NR 440.205(6)(b)(b) In conducting the performance tests required under s. NR 440.08, the owner or operator shall use the cited methods and procedures in Appendix A of 40 CFR part 60, incorporated by reference in s. NR 440.17, or the methods and procedures as specified in this subsection, except as provided in s. NR 440.08 (2). Section NR 440.08 (6) does not apply to this subsection. The 30-day notice required in s. NR 440.08 (4) applies only to the initial performance test unless otherwise specified by the department. NR 440.205(6)(c)(c) The owner or operator of an affected facility shall conduct performance tests to determine compliance with the percent of potential sulfur dioxide emission rate (%Ps) and the sulfur dioxide emission rate (Es) pursuant to sub. (3) following the procedures listed below, except as provided under par. (d). NR 440.205(6)(c)1.1. The initial performance test shall be conducted over the first 30 consecutive operating days of the steam generating unit. Compliance with the sulfur dioxide standards shall be determined using a 30-day average. The first operating day included in the initial performance test shall be scheduled within 30 days after achieving the maximum production rate at which the affected facility will be operated, but not later than 180 days after initial startup of the facility. NR 440.205(6)(c)2.2. If only coal or only oil is combusted, the following procedures are used: NR 440.205(6)(c)2.a.a. The procedures in Method 19, Appendix A of 40 CFR part 60, incorporated by reference in s. NR 440.17, shall be used to determine the hourly sulfur dioxide emission rate (Eho) and the 30-day average emission rate (Eao). The hourly averages used to compute the 30-day averages are obtained from the continuous emission monitoring system of sub. (8) (a) or (b). NR 440.205(6)(c)2.b.b. The percent of potential sulfur dioxide emission rate (%Ps) emitted to the atmosphere is computed using the following formula: where:
%Rg is the sulfur dioxide removal efficiency of the control device as determined by Method 19
%Rf is the sulfur dioxide removal efficiency of fuel pretreatment as determined by Method 19
NR 440.205(6)(c)3.3. If coal or oil is combusted with other fuels, the same procedures required in subd. 2. are used, except as provided in the following: NR 440.205(6)(c)3.a.a. An adjusted hourly sulfur dioxide emission rate (Ehoo) is used in equation 19-19 of Method 19 to compute an adjusted 30-day average emission rate (Eaoo). The Ehoo is computed using the following formula: where:
Ehoo is the adjusted hourly sulfur dioxide emission rate, ng/J (lb/million Btu)
Eho is the hourly sulfur dioxide emission rate, ng/J (lb/million Btu)
Ew is the sulfur dioxide concentration in fuels other than coal and oil combusted in the affected facility, as determined by the fuel sampling and analysis procedures in Method 19, ng/J (lb/million Btu). The value Ew for each fuel lot is used for each hourly average during the time that the lot is being combusted.
Xk is the fraction of total heat input from fuel combustion derived from coal, oil, or coal and oil, as determined by applicable procedures in Method 19
NR 440.205(6)(c)3.b.b. To compute the percent of potential sulfur dioxide emission rate (%Ps), an adjusted %Rg (%Rgo) is computed from the adjusted Eaoo from subd. 3. a. and an adjusted average sulfur dioxide inlet rate (Eaio) using the following formula: To compute Eai°, an adjusted hourly sulfur dioxide inlet rate (Ehi°) is used. The Ehi° is computed using the following formula: where:
Ehi° is the adjusted hourly sulfur dioxide inlet rate, ng/J (lb/million Btu)
Ehi is the hourly sulfur dioxide inlet rate, ng/J (lb/million Btu)
NR 440.205(6)(c)4.4. The owner or operator of an affected facility subject to subd. 3. does not have to measure parameters Ew or Xk if the owner or operator elects to assume that Xk = 1.0. Owners or operators of affected facilities who assume Xk = 1.0 shall determine %Ps, following the procedures in subd. 2., and sulfur dioxide emissions (Es) shall be considered to be in compliance with sulfur dioxide emission limits under sub. (3). NR 440.205(6)(c)5.5. The owner or operator of an affected facility that qualifies under the provisions of sub. (3) (d) does not have to measure parameters Ew or Xk under subd. 3. if the owner or operator of the affected facility elects to measure sulfur dioxide emission rates of the coal or oil following the fuel sampling and analysis procedures under Method 19. NR 440.205(6)(d)(d) Except as provided in par. (j), the owner or operator of an affected facility that combusts only very low sulfur oil, has an annual capacity factor for oil of 10% (0.10) or less, and is subject to a federally enforceable requirement limiting operation of the affected facility to an annual capacity factor for oil of 10% (0.10) or less shall: NR 440.205(6)(d)1.1. Conduct the initial performance test over 24 consecutive steam generating unit operating hours at full load; NR 440.205(6)(d)2.2. Determine compliance with the standards after the initial performance test based on the arithmetic average of the hourly emissions data during each steam generating unit operating day if a continuous emission monitoring system (CEMS) is used, or based on a daily average if Method 6B, Appendix A of 40 CFR part 60, incorporated by reference in s. NR 440.17, or fuel sampling and analysis procedures under Method 19, Appendix A of 40 CFR part 60, incorporated by reference in s. NR 440.17, are used. NR 440.205(6)(e)(e) The owner or operator of an affected facility subject to sub. (3) (d) 1., shall demonstrate the maximum design capacity of the steam generating unit by operating the facility at maximum capacity for 24 hours. This demonstration will be made during the initial performance test and a subsequent demonstration may be requested at any other time. If the 24-hour average firing rate for the affected facility is less than the maximum design capacity provided by the manufacturer of the affected facility, the 24-hour average firing rate shall be used to determine the capacity utilization rate for the affected facility, otherwise the maximum design capacity provided by the manufacturer shall be used. NR 440.205(6)(f)(f) For the initial performance test required under s. NR 440.08, compliance with the sulfur dioxide emission limits and percent reduction requirements under sub. (3) is based on the average emission rates and the average percent reduction for sulfur dioxide for the first 30 consecutive steam generating unit operating days, except as provided under par. (d). The initial performance test is the only test for which at least 30 days prior notice is required unless otherwise specified by the department. The initial performance test is to be scheduled so that the first steam generating unit operating day of the 30 successive steam generating unit operating days is completed within 30 days after achieving the maximum production rate at which the affected facility will be operated, but not later than 180 days after initial startup of the facility. The boiler load during the 30-day period does not have to be the maximum design load, but shall be representative of future operating conditions and include at least one 24-hour period at full load. NR 440.205(6)(g)(g) After the initial performance test required under s. NR 440.08, compliance with the sulfur dioxide emission limits and percent reduction requirements under sub. (3) is based on the average emission rates and the average percent reduction for sulfur dioxide for 30 successive steam generating unit operating days, except as provided under par. (d). A separate performance test shall be completed at the end of each steam generating unit operating day after the initial performance test, and a new 30-day average emission rate and percent reduction for sulfur dioxide shall be calculated to show compliance with the standard. NR 440.205(6)(h)(h) Except as provided under par. (i), the owner or operator of an affected facility shall use all valid sulfur dioxide emissions data in calculating %Ps and Eho under par. (c), whether or not the minimum emissions data requirements under sub. (7) are achieved. All valid emissions data, including valid sulfur dioxides emission data collected during periods of startup, shutdown and malfunctions, shall be used in calculating %Ps and Eho pursuant to par. (c). NR 440.205(6)(i)(i) During periods of malfunction or maintenance of the sulfur dioxide control systems when oil is combusted as provided under sub. (3) (i), emission data are not used to calculate %Ps or Es under sub. (3) (a), (b) or (c). However, the emissions data are used to determine compliance with the emission limit under sub. (3) (i). NR 440.205(6)(j)(j) The owner or operator of an affected facility that combusts very low sulfur oil is not subject to the compliance and performance testing requirements of this subsection if the owner or operator obtains fuel receipts as described in sub. (10) (r). NR 440.205(7)(7) Compliance and performance test methods and procedures for particulate matter and nitrogen oxides. NR 440.205(7)(a)(a) The particulate matter emission standards and opacity limits under sub. (4) apply at all times except during periods of startup, shutdown, or malfunction. The nitrogen oxides emission standards under sub. (5) apply at all times. NR 440.205(7)(b)(b) Compliance with the particulate matter emission standards under sub. (4) shall be determined through performance testing as described in par. (d). NR 440.205(7)(c)(c) Compliance with the nitrogen oxides emission standards under sub. (5) shall be determined through performance testing under par. (e) or (f), or under pars. (g) and (h), as applicable. NR 440.205(7)(d)(d) To determine compliance with the standards for particulate matter emission limits and opacity limits under sub. (4), the owner or operator of an affected facility shall conduct an initial performance test as required under s. NR 440.08 using the following procedures and reference methods. These reference methods and procedures are in 40 CFR part 60, Appendix A, which is incorporated by reference in s. NR 440.17. NR 440.205(7)(d)1.1. Method 3B is used for gas analysis when applying Method 5 or Method 17. NR 440.205(7)(d)2.2. Method 5, Method 5B, or Method 17 shall be used to measure the concentration of particulate matter as follows: NR 440.205(7)(d)2.a.a. Method 5 shall be used at affected facilities without wet flue gas desulfurization (FGD) systems; and NR 440.205(7)(d)2.b.b. Method 17 may be used at facilities with or without wet scrubber systems provided the stack gas temperature does not exceed a temperature of 160°C (320°F). The procedures of ss. 2.1 and 2.3 of Method 5B may be used in Method 17 only if it is used after a wet FGD system. Do not use Method 17 after wet FGD systems if the effluent is saturated or laden with water droplets. NR 440.205(7)(d)3.3. Method 1 is used to select the sampling site and the number of traverse sampling points. The sampling time for each run shall be at least 120 minutes and the minimum sampling volume is 1.7 dscm (60 dscf) except that smaller sampling times or volumes may be approved by the department when necessitated by process variables or other factors. NR 440.205(7)(d)4.4. For Method 5, the temperature of the sample gas in the probe and filter holder is monitored and is maintained at 160 ± 14°C (320 ± 25°F). NR 440.205(7)(d)5.5. For determination of particulate emissions, the oxygen or carbon dioxide sample is obtained simultaneously with each run of Method 5, Method 5B or Method 17 by traversing the duct at the sampling location. NR 440.205(7)(d)6.6. For each run using Method 5, Method 5B or Method 17, the emission rate expressed in nanograms per joule heat input is determined using: NR 440.205(7)(d)6.a.a. The oxygen or carbon dioxide measurements and particulate matter measurements obtained under this subsection, NR 440.205(7)(e)(e) To determine compliance with the emission limits for nitrogen oxides required under sub. (5), the owner or operator of an affected facility shall conduct the performance test as required under s. NR 440.08 using the continuous system for monitoring nitrogen oxides under sub. (9).
