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

Rock Lake -- Sandy Beach Launch

Location:

Rock Lake has the following aquatic invasive species:
Banded Mystery Snail, Chinese Mystery Snail, Curly-Leaf Pondweed, Eurasian Water-Milfoil, Hybrid Eurasian / Northern Water-Milfoil, Rusty Crayfish, Spiny Naiad, Starry Stonewort, Yellow Iris, Zebra Mussel To Excel
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DatePrior WaterbodyCountyWBICKnown Aquatic Invasive Species
09/05/2026Nagawicka Lake Waukesha County0Information Not Available
09/05/2026Lake RipleyJefferson County0Information Not Available
08/28/2026Oconomowoc Lake Waukesha County0Information Not Available
08/28/2026Nagawicka Lake Waukesha County0Information Not Available
08/27/2026Pewaukee Lake Waukesha County0Information Not Available
08/27/2026Lake RipleyJackson County0Information Not Available
08/16/2026Lake RipleyJefferson County0Information Not Available
08/14/2026RipleyJefferson County0Information Not Available
08/14/2026PikeWashington County0Information Not Available
08/10/2026KoshkonongJefferson County0Information Not Available
08/03/2026Lake RipleyJefferson County0Information Not Available
08/03/2026Fox LakeDodge County0Information Not Available
08/03/2026Ripley LakeJefferson County0Information Not Available
08/03/2026Winnebago LakeCalumet County0Information Not Available
07/30/2026KenoshaKenosha County0Information Not Available
07/30/2026WinnebagoCalumet County0Information Not Available
07/29/2026Silver Lake Waukesha County0Information Not Available
07/28/2026Oconomowoc LakeWaukesha County0Information Not Available
07/28/2026Lake RipleyJefferson County0Information Not Available
07/28/2026Whitewater Lake Walworth County0Information Not Available
07/24/2026Lake RipleyJefferson County0Information Not Available
07/23/2026Miller DamTaylor County0Information Not Available
07/21/2026Lake WisconsinColumbia County0Information Not Available
07/07/2026Lake KoshkonongJefferson County0Information Not Available
07/04/2026Lake KoshkonongJefferson County0Information Not Available
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