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

Lake Mendota -- Marshall Park Boat Park

Location:

Lake Mendota has the following aquatic invasive species:
Chinese Mystery Snail, Curly-Leaf Pondweed, Eurasian Water-Milfoil, Japanese knotweed (Fallopia japonica), Rusty Crayfish, Spiny Waterflea, Zebra Mussel To Excel
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DatePrior WaterbodyCountyWBICKnown Aquatic Invasive Species
07/13/2025Lake WinnebagoFond du Lac County0Information Not Available
07/13/2025Lake KegonsaDane County0Information Not Available
07/13/2025Lake WaubesaDane County0Information Not Available
07/10/2025Lake SuperiorBayfield County0Information Not Available
07/10/2025Lake KegonsaDane County0Information Not Available
07/10/2025Lake WisconsinColumbia County0Information Not Available
07/05/2025Lake WingraDane County0Information Not Available
07/05/2025Mississippi RiverGrant County0Information Not Available
07/05/2025Lake WisconsinColumbia County0Information Not Available
07/05/2025Nagawicka LakeWaukesha County0Information Not Available
07/05/2025Wisconsin RiverDane County0Information Not Available
06/30/2025Lake WaubesaDane County0Information Not Available
06/19/2025Lake MillsJefferson County0Information Not Available
06/17/2025Chippewa FlowageSawyer County0Information Not Available
06/15/2025Lake MononaDane County0Information Not Available
06/15/2025Lake Michigan Door County0Information Not Available
06/15/2025Lake Wisconsin Columbia County0Information Not Available
06/15/2025Lower Nemahbin LakeWaukesha County0Information Not Available
06/15/2025Red Stone LakeSauk County0Information Not Available
06/13/2025Governor DodgeDodge County0Information Not Available
06/11/2025Lake MononaDane County0Information Not Available
06/11/2025Rock Lake Jefferson County0Information Not Available
06/11/2025Wisconsin RiverVilas County0Information Not Available
06/07/2025Lake ComoWalworth County0Information Not Available
06/07/2025Lake MononaDane County0Information Not Available
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