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

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Total Locations: 25
Total Lakes and Rivers: 22 *

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: https://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
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WaterbodySpeciesStatusWaterbody ID Code (WBIC)Details
2017 (1)
Point CreekEurasian Water-MilfoilVerified  Details
2014 (1)
Kiel MillpondEurasian Water-MilfoilVerified5560113 Details
2012 (4)
Carstens LakeHybrid Eurasian / Northern Water-MilfoilVerified66800 Details
Shoe LakeEurasian Water-MilfoilVerified and Vouchered46700 Details
Shoe LakeHybrid Eurasian / Northern Water-MilfoilVerified46700 Details
Spring LakeEurasian Water-MilfoilVerified63700 Details
2011 (2)
EnglishHybrid Eurasian / Northern Water-MilfoilVerified68100 Details
Hartlaub LakeHybrid Eurasian / Northern Water-MilfoilVerified67200 Details
2010 (1)
Silver LakeHybrid Eurasian / Northern Water-MilfoilVerified and Vouchered67400 Details
2009 (3)
English LakeEurasian Water-MilfoilVerified and Vouchered68100 Details
Hartlaub LakeEurasian Water-MilfoilVerified67200 Details
Little Pigeon LakeEurasian Water-MilfoilVerified and Vouchered63800 Details
2008 (1)
Silver LakeEurasian Water-MilfoilVerified and Vouchered67400 Details
2005 (1)
Bullhead LakeEurasian Water-MilfoilVerified and Vouchered68300 Details
2003 (1)
Long LakeEurasian Water-MilfoilVerified and Vouchered77500 Details
1994 (3)
Harpt Lake (Herman)Eurasian Water-MilfoilVerified and Vouchered84600 Details
Pigeon LakeEurasian Water-MilfoilVerified and Vouchered64000 Details
Rockville FlowageEurasian Water-MilfoilVerified and Vouchered58400 Details
1993 (4)
Carstens Lake (Carsten)Eurasian Water-MilfoilVerified and Vouchered66800 Details
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* 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].