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

JEFFERSON COUNTY LCD: Jefferson 2026 CBCW

Location:

To Excel
12
Destination LandingDestination CountyDatePrior WaterbodyCountyWBICKnown Aquatic Invasive Species
Rock Lake -- Mill Pond Rock Lake Access Jefferson08/06/2026Nelligan Lake Marinette County0Information Not Available
Rock Lake -- Sandy Beach Launch Jefferson09/05/2026Nagawicka Lake Waukesha County0Information Not Available
Rock Lake -- Sandy Beach Launch Jefferson09/05/2026Lake RipleyJefferson County0Information Not Available
Rock Lake -- Sandy Beach Launch Jefferson08/28/2026Nagawicka Lake Waukesha County0Information Not Available
Rock Lake -- Sandy Beach Launch Jefferson08/28/2026Oconomowoc Lake Waukesha County0Information Not Available
Rock Lake -- Sandy Beach Launch Jefferson08/27/2026Pewaukee Lake Waukesha County0Information Not Available
Rock Lake -- Sandy Beach Launch Jefferson08/27/2026Lake RipleyJackson County0Information Not Available
Rock Lake -- Sandy Beach Launch Jefferson08/16/2026Lake RipleyJefferson County0Information Not Available
Rock Lake -- Sandy Beach Launch Jefferson08/14/2026PikeWashington County0Information Not Available
Rock Lake -- Sandy Beach Launch Jefferson08/14/2026RipleyJefferson County0Information Not Available
Rock Lake -- Sandy Beach Launch Jefferson08/10/2026KoshkonongJefferson County0Information Not Available
Rock Lake -- Sandy Beach Launch Jefferson08/03/2026Lake RipleyJefferson County0Information Not Available
Rock Lake -- Sandy Beach Launch Jefferson08/03/2026Ripley LakeJefferson County0Information Not Available
Rock Lake -- Sandy Beach Launch Jefferson08/03/2026Winnebago LakeCalumet County0Information Not Available
Rock Lake -- Sandy Beach Launch Jefferson08/03/2026Fox LakeDodge County0Information Not Available
Rock Lake -- Sandy Beach Launch Jefferson07/30/2026KenoshaKenosha County0Information Not Available
Rock Lake -- Sandy Beach Launch Jefferson07/30/2026WinnebagoCalumet County0Information Not Available
Rock Lake -- Sandy Beach Launch Jefferson07/29/2026Silver Lake Waukesha County0Information Not Available
Rock Lake -- Sandy Beach Launch Jefferson07/28/2026Lake RipleyJefferson County0Information Not Available
Rock Lake -- Sandy Beach Launch Jefferson07/28/2026Oconomowoc LakeWaukesha County0Information Not Available
Rock Lake -- Sandy Beach Launch Jefferson07/28/2026Whitewater Lake Walworth County0Information Not Available
Rock Lake -- Sandy Beach Launch Jefferson07/24/2026Lake RipleyJefferson County0Information Not Available
Rock Lake -- Sandy Beach Launch Jefferson07/23/2026Miller DamTaylor County0Information Not Available
Rock Lake -- Sandy Beach Launch Jefferson07/21/2026Lake WisconsinColumbia County0Information Not Available
Rock Lake -- Sandy Beach Launch Jefferson07/07/2026Lake KoshkonongJefferson County0Information Not Available
12