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Contact(s): Emma Lorenzen, wastewater engineer, (608)-267-7643
August 13, 2019

MADISON, Wis. - The Wisconsin Department of Natural Resources is seeking public comment on a proposed new rule to adopt federal regulations for cooling water intake structures at wastewater treatment facilities. The public comment period opened on Aug. 12 and will continue through Sept. 18. Public hearings are scheduled on Sept. 9 and 11. An informational webinar will be held on Sept. 3.

Under the Clean Water Act, a federal water pollution control act, the U.S. Environmental Protection Agency (EPA) has a responsibility to implement rules addressing aquatic organisms at cooling water intake structures. The EPA adopted rules in 2002 and 2014 that specify requirements for new facilities and existing facilities that address the issue. To be consistent with the EPA's rules, the Department of Natural Resources is proposing to create NR 111 in the Wisconsin Administrative Code, though some modifications will be made to clarify details of implementation.

The proposed rule language can be found under Board Order WY-19-14 on the department's proposed permanent rules site.

Written comments may be submitted to Emma Lorenzen, Department of Natural Resources, PO Box 7921, Madison, WI 53703, 608-267-7643, or to or

Last Revised: Tuesday, August 13, 2019

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