NR 446.05NR 446.05 Mercury emission limits for major utilities. Beginning January 1, 2010, no owner or operator of a major utility may cause, allow or permit mercury emissions that exceed 60% of the mercury emissions baseline determined by the department under s. NR 446.06. NR 446.05 HistoryHistory: CR 07-036: cr. Register November 2008 No. 635, eff. 12-1-08. NR 446.06NR 446.06 Baseline mercury emissions for major utilities. This section applies to the determination of baseline mercury emissions for major utilities. NR 446.06(1)(1) No later than October 1, 2005, the owner or operator of a major utility shall submit a report to the department that includes information to calculate the baseline mercury emissions of each combustion unit owned or operated by the major utility for calendar years 2002, 2003 and 2004, using the procedures in s. NR 446.07. NR 446.06(2)(2) After reviewing the report provided in sub. (1), the department shall determine the baseline mercury emissions for each combustion unit of the major utility. The baseline mercury emissions shall be the arithmetic average of the baseline emissions for 2002, 2003 and 2004, unless the department approves an alternative baseline requested by the major utility. NR 446.06(3)(3) In the report required under sub. (1), an owner or operator may request that the department determine an alternative baseline if the 3 years are not representative of the source’s normal operations and maintenance schedule. This request shall include sufficient information to demonstrate that an alternative baseline is appropriate, a proposed alternative baseline, and information sufficient to document how the proposed alternative baseline was determined. NR 446.06(4)(4) No later than January 1, 2007, the department shall provide written notification to each owner or operator who submitted a report under sub. (1) of the department’s determination of the baseline mercury emissions for each combustion unit of the major utility. NR 446.06 NoteNote: Combustion units for which the owner or operator is required to establish baseline mercury emissions are Alma Units 4 & 5, Genoa Unit 1, J.P. Madgett Unit 1, Pleasant Prairie Units 1 & 2, Port Washington Units 1, 2, 3 & 4, South Oak Creek Units 5, 6, 7 & 8, Valley Units 1, 2, 3 & 4, Columbia Units 1 & 2, Edgewater Units 3, 4 & 5, Nelson Dewey Units 1 & 2, Rock River Units 1 & 2, Pulliam Units 3, 4, 5, 6, 7 & 8 and Weston Units 1, 2 & 3.
NR 446.06 HistoryHistory: CR 01-081: cr. September 2004 No. 585, eff. 10-1-04; CR 07-036: renum. from NR 446.03, am. (1) Register November 2008 No. 635, eff. 12-1-08. NR 446.07NR 446.07 Procedures for determining baseline mercury emissions for major utilities. The owner or operator of a major utility shall calculate baseline mercury emissions of the combustion units of the major utility using the procedures of this section for each emissions unit and provide all associated data to the department in the report required under s. NR 446.06 (1). NR 446.07(1)(1) No later than the first day of the 2nd month beginning after October 1, 2004, and continuing for a calendar 12 month period, a representative sample shall be collected weekly for each solid fossil fuel used in the emissions unit in that week. Each weekly sample of a fuel collected under this subsection shall be composited into a monthly sample that shall be analyzed for mercury content using ASTM D3684-01, incorporated by reference in s. NR 484.10 (47m), or an equivalent method approved by the department. NR 446.07(2)(2) The mercury content of each non-solid fossil fuel shall be determined either through testing according to the procedures in ASTM D3684-01, incorporated by reference in s. NR 484.10 (47m), or an equivalent method approved by the department or from published data which lists the mercury content of the fuel. NR 446.07(3)(3) The major utility shall determine the monthly consumption of each fuel in million British thermal units (mmBtu), using methods and procedures specified in Appendices A, B, C and F of 40 CFR part 75, incorporated by reference in s. NR 484.04 (26m) (a) to (d). The major utility may apportion the fuel mmBtu to individual fuels for which the mercury content is determined under sub. (1) or (2), using consumption and delivery records for the fuels. NR 446.07(4)(4) The information gathered in subs. (1) and (2) shall be multiplied by the corresponding fuel consumption rates determined under sub. (3) to determine the total annual mercury contained in each fuel. NR 446.07(5)(5) The mercury content for each fuel, on a mmBtu-basis, shall be computed by dividing the results of sub. (4) by the amount of each fuel burned, in mmBtus, during the 12 month sampling period. NR 446.07(6)(6) The mercury emissions for 2002, 2003 and the 12 months identified in sub. (1) shall be calculated by multiplying the results of sub. (5) times the annual fuel consumption for each of those years. NR 446.07(7)(7) The baseline mercury emissions shall be the 3-year arithmetic average of the mercury emissions determined under subs. (4) and (6) for 2002, 2003 and the 12 months identified in sub. (1). NR 446.07(8)(8) The major utility shall record and report the baseline determination data and calculations for each combustion unit, including the type or types of fuel, the monthly consumption of each fuel in mmBtus, and the mercury concentration in each fuel. NR 446.07(9)(9) The owner or operator of a major utility may request that alternative procedures for determining baseline mercury emissions be approved by the department. NR 446.07 HistoryHistory: CR 01-081: cr. September 2004 No. 585, eff. 10-1-04; CR 07-036: renum. from NR 446.04, am. (intro.) Register November 2008 No. 635, eff. 12-1-08. NR 446.08NR 446.08 Annual mercury emissions determination and reporting for major utilities. NR 446.08(1)(1) The owner or operator of an emissions unit subject to the requirements of s. NR 446.05 shall determine and report to the department, by March 1, annual mercury emissions for each emissions unit, beginning with calendar year 2010 emissions and ending with calendar year 2014 emissions, using the following formula: Annual Mercury Emissions = Fuel Use ´
Mercury Content of Fuel ´ Reduction of
Mercury Prior to its Release to the Atmosphere
where:
NR 446.08(1)(a)(a) Fuel use is the amount of fuel combusted in the combustion unit, as measured by the procedures specified in Appendices A, B, C and F of 40 CFR part 75, incorporated by reference in s. NR 484.04 (26m) (a) to (d). The total amount of the fuel combusted in mmBtus may be apportioned to individual fuels, using consumption and delivery records for the fuels. NR 446.08(1)(b)(b) Mercury content of the fuel is determined according to ASTM D3684-01, incorporated by reference in s. NR 484.10 (47m), or an equivalent method approved by the department, following the procedures in s. NR 446.07 (1), (2) and (3). NR 446.08(1)(c)(c) Reduction of mercury is calculated through source performance tests which follow the procedures in this paragraph. A value of one is assumed for natural gas fired combustion units that are exempt from performance testing under sub. (6).