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

Eurasian Water-Milfoil

Select Another Location:

Total Locations: 20
Total Lakes and Rivers: 20 *

Disclaimer: Aquatic invasive species (AIS) records are assigned statuses of "verified", "observed", or "no longer observed" based on AIS Status Guidance. In general, "verified" populations are established and have been verified by a taxonomic expert. Populations with the "observed" status have not been verified by a taxonomic expert or do not have established populations. Populations with the "no longer observed" status include populations where a reproducing population did not establish. Our inventories are not necessarily exhaustive so it is important to report occurrences. To report new discoveries visit: http://dnr.wi.gov/topic/Invasives/report.html. See the Aquatic Invasive Species Guidance for information on how statuses are assigned. Personally identifiable information on data collection forms may be provided to requesters to the extent required by Wisconsin's Open Records Law [ss. 19.31-19.39, Wis. Stats.].

By Waterbody | By Species | By Year | Open In Excel
WaterbodySpeciesStatusWaterbody ID Code (WBIC)Year First FoundDetails
Callahan LakeEurasian Water-MilfoilVerified and Vouchered24347002005 Details
Chippewa Lake (above CTH B)Eurasian Water-MilfoilVerified24145002006 Details
Clear LakeEurasian Water-MilfoilVerified and Vouchered18413001999 Details
Connors LakeEurasian Water-MilfoilVerified and Vouchered22751002002 Details
HaywardHybrid Eurasian / Northern Water-MilfoilVerified27255002012 Details
Hayward LakeEurasian Water-MilfoilVerified27255002011 Details
Lac Coute OreillesEurasian Water-MilfoilVerified and Vouchered23908002017 Details
Lake Chippewa (Chippewa Fl)Eurasian Water-MilfoilVerified and Vouchered23997001991 Details
Little Lac Courte OreillesEurasian Water-MilfoilVerified and Vouchered23905002015 Details
Little Round LakeEurasian Water-MilfoilVerified and Vouchered23955001999 Details
Lost Land LakeEurasian Water-MilfoilVerified and Vouchered24186002013 Details
Lost Land LakeHybrid Eurasian / Northern Water-MilfoilVerified24186002014 Details
Mud LakeEurasian Water-MilfoilVerified and Vouchered23822002005 Details
Mud LakeEurasian Water-MilfoilVerified and Vouchered24348002005 Details
North Fork Chief River (From Lake Chippewa to Callahan Lake)Eurasian Water-MilfoilVerified and Vouchered24340002006 Details
Osprey LakeEurasian Water-MilfoilVerified and Vouchered23951002005 Details
Radisson FlowageEurasian Water-MilfoilVerified and Vouchered23974002003 Details
Round Lake (Big Round)Eurasian Water-MilfoilVerified and Vouchered23956001993 Details
Tiger Cat FlowageEurasian Water-MilfoilNo Longer Observed24350002013 Details
Whitefish LakeEurasian Water-MilfoilVerified and Vouchered23920002008 Details

* Total Lakes and Rivers = total unique Waterbody ID Codes (WBICs). If a waterbody, such as a small pond not in the DNR 24 K Hydrolayer, doesn't have a WBIC, it isn't currently counted in the total.

** Purple Loosestrife - DNR has only a partial list of locations. For more extensive data, visit the Great Lakes Indian and Fish Wildlife Commission (GLIFWC) website [exit DNR].

** Fish species - This web page only has a partial list of locations. For more extensive data, visit the Wisconsin Department of Natural Resources Map of Distribution of WI Fish Species [exit DNR].