NR 440.205(2)(zb)(zb) “Petroleum refinery” means industrial plants as classified by the department of commerce under SIC code 29 in the Standard Industrial Classification Manual, incorporated by reference in s. NR 440.17. NR 440.205(2)(zc)(zc) “Potential sulfur dioxide emission rate” means the theoretical sulfur dioxide emissions (ng/J, lb/million Btu heat input) that would result from combusting fuel in an uncleaned state and without using emission control systems. NR 440.205(2)(zd)(zd) “Process heater” means a device that is primarily used to heat a material to initiate or promote a chemical reaction in which the material participates as a reactant or catalyst. NR 440.205(2)(zdm)(zdm) “Pulp and paper mills” means industrial plants which are classified under code 26 of the Standard Industrial Classification Manual, 1987 or under code 322 of the North American Industry Classification System, United States 2002, incorporated by reference in s. NR 440.17 (2) (i) 1. and 3. respectively. NR 440.205(2)(ze)(ze) “Pulverized coal-fired steam generating unit” means a steam generating unit in which pulverized coal is introduced into an air stream that carries the coal to the combustion chamber of the steam generating unit where it is fired in suspension. This includes both conventional pulverized coal-fired and micropulverized coal-fired steam generating units. NR 440.205(2)(zf)(zf) “Residual oil” means crude oil, fuel oil numbers 1 and 2 that have a nitrogen content greater than 0.05 weight percent, and all fuel oil numbers 4, 5 and 6, as defined by the American Society for Testing and Materials in ASTM D396-98, Standard Specifications for Fuel Oils, incorporated by reference in s. NR 440.17 (2) (a) 13. NR 440.205(2)(zg)(zg) “Spreader stoker steam generating unit” means a steam generating unit in which solid fuel is introduced to the combustion zone by a mechanism that throws the fuel onto a grate from above and in which combustion takes place both in suspension and on the grate. NR 440.205(2)(zh)(zh) “Steam generating unit” means a device that combusts any fuel or byproduct/waste to produce steam or to heat water or any other heat transfer medium. This term includes any municipal-type solid waste incinerator with a heat recovery steam generating unit or any steam generating unit that combusts fuel and is part of a cogeneration system or a combined cycle system. This term does not include process heaters as they are defined in this section. NR 440.205(2)(zi)(zi) “Steam generating unit operating day” means a 24-hour period between 12:00 midnight and the following midnight during which any fuel is combusted at anytime in the steam generating unit. It is not necessary for fuel to be combusted continuously for the entire 24-hour period. NR 440.205(2)(zj)(zj) “Very low sulfur oil” means an oil that contains no more than 0.50 weight percent sulfur or that, when combusted without sulfur dioxide emission control, has a sulfur dioxide emission rate equal to or less than 215 ng/J (0.50 lb/million Btu) heat input. NR 440.205(2)(zk)(zk) “Wet flue gas desulfurization technology” means a sulfur dioxide control system that is located downstream of the steam generating unit and removes sulfur oxides from the combustion gases of the steam generating unit by contacting the combustion gas with an alkaline slurry or solution and forming a liquid material. This definition applies to devices where the aqueous liquid material product of this contact is subsequently converted to other forms. Alkaline reagents used in wet flue gas desulfurization technology include, but are not limited to, lime, limestone, and sodium. NR 440.205(2)(zL)(zL) “Wet scrubber system” means any emission control device that mixes an aqueous stream or slurry with the exhaust gases from a steam generating unit to control emissions of particulate matter or sulfur dioxide. NR 440.205(2)(zm)(zm) “Wood” means wood, wood residue, bark, or any derivative fuel or residue thereof, in any form, including, but not limited to, sawdust, sanderdust, wood chips, scraps, slabs, millings, shavings, and processed pellets made from wood or other forest residues. NR 440.205(3)(a)(a) Except as provided in par. (b), (c), (d), or (j) on and after the date on which the performance test is completed or required to be completed under s. NR 440.08, whichever date comes first, no owner or operator of an affected facility that combusts coal or oil may cause to be discharged into the atmosphere any gases that contain sulfur dioxide in excess of 10% (0.10) of the potential sulfur dioxide emission rate (90% reduction) and that contain sulfur dioxide in excess of the emission limit determined according to the following formula: Es = (KaHa+ KbHb)/(Ha+ Hb)
where:
Es is the sulfur dioxide emission limit, in ng/J or lb/million Btu heat input
Ka is 520 ng/J (or 1.2 lb/million Btu)
Kb is 340 ng/J (or 0.80 lb/million Btu)
Ha is the heat input from the combustion of coal, in J (million Btu)
Hb is the heat input from the combustion of oil, in J (million Btu)
Only the heat input supplied to the affected facility from the combustion of coal and oil is counted under this subsection. No credit is provided for the heat input to the affected facility from the combustion of natural gas, wood, municipal-type solid waste, or other fuels or heat input to the affected facility from exhaust gases from another source, such as gas turbines, internal combustion engines, kilns, etc.
NR 440.205(3)(b)(b) On and after the date on which the performance test is completed or required to be completed under s. NR 440.08, whichever comes first, no owner or operator of an affected facility that combusts coal refuse alone in a fluidized bed combustion steam generating unit may cause to be discharged into the atmosphere any gases that contain sulfur dioxide in excess of 20% of the potential sulfur dioxide emission rate (80% reduction) and that contain sulfur dioxide in excess of 520 ng/J (1.2 lb/million Btu) heat input. If coal or oil is fired with coal refuse, the affected facility is subject to par. (a) or (d), as applicable. NR 440.205(3)(c)(c) On and after the date on which the 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 combusts coal or oil, either alone or in combination with any other fuel, and that uses an emerging technology for the control of sulfur dioxide emissions, may cause to be discharged into the atmosphere any gases that contain sulfur dioxide in excess of 50% of the potential sulfur dioxide emission rate (50% reduction) and that contain sulfur dioxide in excess of the emission limit determined according to the following formula: where:
Es is the sulfur dioxide emission limit, expressed in ng/J or lb/million Btu heat input
Kc is 260 ng/J (or 0.60 lb/million Btu)
Kd is 170 ng/J (or 0.40 lb/million Btu)