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

Delavan Lake -- Access Off State Hwy 50

Location:

Delavan Lake has the following aquatic invasive species:
Banded Mystery Snail, Curly-Leaf Pondweed, Eurasian Water-Milfoil, Hybrid Eurasian / Northern Water-Milfoil, Ornamental water lilies (non-native Nymphaea sp.), Pennywort, Phragmites (non-native), Purple Loosestrife, Zebra Mussel To Excel
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DatePrior WaterbodyCountyWBICKnown Aquatic Invasive Species
08/10/2024Wind LakeRacine County0Information Not Available
08/03/2024Big Roche CreekAdams County0Information Not Available
08/02/2024Madison ChainDane County0Information Not Available
07/31/2024Lake BeulahWalworth County0Information Not Available
07/27/2024Clear Lakex-Other Surrounding State0Information Not Available
07/27/2024TichiganRacine County0Information Not Available
07/27/2024Chain of Lakesx-Illinois0Information Not Available
07/27/2024Crystal Lakex-Illinois0Information Not Available
07/26/2024Lake GenevaWalworth County0Information Not Available
07/26/2024Lake GenevaWalworth County0Information Not Available
07/17/2024Fox Riverx-Illinois0Information Not Available
07/14/2024Lake GenevaWalworth County0Information Not Available
07/11/2024WhitewaterWalworth County0Information Not Available
07/06/2024Rock RiverJefferson County0Information Not Available
07/03/2024Lake GenevaWalworth County0Information Not Available
06/29/2024Lake MichiganOzaukee County0Information Not Available
06/22/2024Lake GenevaWalworth County0Information Not Available
06/15/2024Lake GenevaWalworth County0Information Not Available
06/15/2024Lake BeulahWalworth County0Information Not Available
06/15/2024Rock RiverJefferson County0Information Not Available
06/13/2024Lake GenevaWalworth County0Information Not Available
06/13/2024Lake GenevaWalworth County0Information Not Available
06/12/2024Rock Lakex-Illinois0Information Not Available
06/12/2024ComoWalworth County0Information Not Available
06/09/2024Madison ChainDane County0Information Not Available
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