Wisconsin Administrative Code
Department of Natural Resources
NR 400-499 - Environmental Protection - Air Pollution Control
Chapter NR 446 - Control Of Mercury Emissions
Subchapter III - Fired Electric Generating Units
Section NR 446.13 - Mercury emission limits for large coal-fired electric generating units
Universal Citation: WI Admin Code ยง NR 446.13
Current through August 26, 2024
(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.
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