Wisconsin Department of Natural Resources

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Aquatic Invasive Species

Invasive Species Contacts
John Haack

Basin Educator: St. Croix Basin
UW Extension

Ashland, Bayfield, Burnett, Douglas, Polk, Rusk, Sawyer, Washburn

715-635-7406

john.haack@ces.uwex.edu Email icon

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Wisconsin Department of Natural Resources | 101 S. Webster Street . PO Box 7921 | Madison, Wisconsin 53707-7921

Call 1-888-936-7463 (TTY Access via relay - 711) from 7 a.m. - 10 p.m.

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