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Regulations

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    Annual Fee Structure for Title V Sources Required to Have an Air Permit

    In addition to the per ton fee, all Title V sources pay a base emission fee. The source’s total emissions determine the base emissions fee. Additional fees apply to facilities subject to the following federal regulatory programs. Maximum…

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    NR 809 safe drinking water standards update

    The state's safe drinking water code ch. NR 809 Wis. Adm. Code will be revised to include federal PFAS maximum contaminant levels (MCLs), technical edits and updates to lead and copper. As information about these rule updates becomes available, it…

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    Drinking water administrative codes

    Wisconsin Administrative Codes that relate to private and public drinking water are provided on this page as links to the Wisconsin Legislative website. To request an official paper copy of a specific code, follow the instructions on the Wisconsin…

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    Waterfowl management

    Management Plan Wisconsin waterfowl management plan (2020-2030) [PDF]      

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    Wisconsin Animals

    Wisconsin hosts 668 native vertebrates, including fishes, amphibians, reptiles, birds and

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    Elk Hunting

    Attention potential elk hunters: The 2024 Elk Application Period is open from April 10 through May 31. Find more information on how to apply below.

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    Water use administrative rules REDIRECTS

    The department has several administrative rules to implement the Great Lakes Compact and associated statewide water use regulations.

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    Karner blue butterfly

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    Identification tips and habitat

    The Karner blue butterfly, Lycaeides melissa samuelis, is in the Lycaenidae (gossamer-winged butterfly) family.

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