Aquatic Invasive Species
Contact information
For information on Lakes in Wisconsin, contact:
DNR Lake
Division of Water
Bureau of Water Quality
Clean Boats, Clean Waters Contacts

Geneva Lake -- Williams Bay Access (Village of Williams Bay)

Location:

Geneva Lake has the following aquatic invasive species:
Banded Mystery Snail, Curly-Leaf Pondweed, Eurasian Water-Milfoil, Quagga Mussel, Rusty Crayfish, Starry Stonewort, Yellow Iris, Zebra Mussel To Excel
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DatePrior WaterbodyCountyWBICKnown Aquatic Invasive Species
08/18/2026Delavan LakeWalworth County0Information Not Available
08/18/2026Delavan LakeWalworth County0Information Not Available
08/18/2026Fox LakeDodge County0Information Not Available
08/17/2026Delevan LakeWalworth County0Information Not Available
08/17/2026Lake Michigan 0Information Not Available
08/17/2026Silver LakeKenosha County0Information Not Available
08/02/2026Delevan LakeWalworth County0Information Not Available
08/02/2026Lake Superior 0Information Not Available
08/02/2026Green LakeGreen County0Information Not Available
07/21/2026Como LakeWalworth County0Information Not Available
07/21/2026Lake Michiganx-Michigan0Information Not Available
07/21/2026Fox LakeDodge County0Information Not Available
07/12/2026Delavan LakeWalworth County0Information Not Available
07/12/2026Powers LakeWalworth County0Information Not Available
07/07/2026Delavan LakeWalworth County0Information Not Available
07/07/2026Delavan LakeWalworth County0Information Not Available
07/07/2026Wisconsin River 0Information Not Available
07/07/2026Delavan LakeWalworth County0Information Not Available
07/07/2026Lake Winnebago 0Information Not Available
06/29/2026Beaver Dam Lake Dodge County0Information Not Available
06/29/2026pewaukee lakeWaukesha County0Information Not Available
06/28/2026Fox lake x-Illinois0Information Not Available
06/28/2026silver lake Kenosha County0Information Not Available
06/28/2026phantom lake Waukesha County0Information Not Available
06/27/2026Lake Michigan x-Illinois0Information Not Available
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