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: