Section NR 446.13 - Mercury emission limits for large coal-fired electric generating units(1) Beginning April 16, 2016, an owner or operator of a large or a small coal-fired EGU designated by the department to meet the emission limitation in this subsection under s. NR 446.17(2) (b) shall achieve a minimum of 90% mercury emission reduction as measured from the mercury content of fuel combusted or limit mercury emissions annually to 0.0080 pounds per gigawatt-hour (lbs/GWh) of electricity produced.(2) An owner or operator may achieve compliance with sub. (1) by either of the following methods: (a)Unit-by-unit compliance. Demonstrating that the mercury emissions from each coal-fired EGU meet either of the mercury emission limits in sub. (1) using the measurement methods and calculation procedures in s. NR 446.18.(b)Unit averaging. Demonstrating that the sum of the mercury emissions from all coal-fired EGUs subject to the mercury emission limits in sub. (1) does not exceed the sum of the annual allowable mercury emissions for the coal-fired EGUs using the measurement methods and calculation procedures in s. NR 446.18.Wis. Admin. Code Department of Natural Resources NR 446.13
CR 07-036: cr. Register November 2008 No. 635, eff. 12-1-08; CR 13-089: am. (1) Register July 2014 No. 703, eff. 8-1-14.