- Contact information
-
For information on Lakes in Wisconsin, contact:
- DNR Lake
Division of Water
Bureau of Water Quality
- Aquatic Invasive Species Contacts
Hybrid Eurasian / Northern Water-Milfoil
Total Locations: 187
Total Lakes and Rivers: 236
*
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.wisconsin.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 County | By Waterbody | By Species | By Year | Open In Excel
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Waterbody | Status | Waterbody ID Code (WBIC) | County | Details |
2024 (5) |
Crystal Lake | Verified | 45200 | Sheboygan |
Details
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Green Lake | Verified | 28100 | Washington |
Details
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Johns Lake | Verified | 245800 | Waushara |
Details
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McGinnis Lake | Verified | | |
Details
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Peters Lake | Verified | 741400 | Walworth |
Details
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2023 (2) |
Lake Five | Verified | 777400 | Washington, Waukesha |
Details
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Rainbow Spring Lake | Verified | 768000 | Waukesha |
Details
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2022 (5) |
Arbutus Lake | Verified | 181400 | Forest |
Details
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Cedar Lake | Verified | 45100 | Manitowoc |
Details
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Lucas Lake | Verified and Vouchered | 35900 | Washington |
Details
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Pearl Lake | Verified | 195400 | Waushara |
Details
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Round Lake | Verified and Vouchered | 2395600 | Sawyer |
Details
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2021 (2) |
Dutch Hollow Lake | Verified | 1286500 | Sauk |
Details
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Gilbert Lake | Verified | 186400 | Waushara |
Details
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2020 (1) |
Blue Lake | Verified and Vouchered | 1538600 | Oneida |
Details
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2019 (8) |
Bahr Lake | Verified | 325300 | Shawano |
Details
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Eagle Spring Lake | Verified | 768600 | Waukesha |
Details
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HWM Trego Lake | Verified | 2712000 | Washburn |
Details
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Lower Nemahbin Lake | Verified | 827000 | Waukesha |
Details
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Lulu Lake | Verified | 768800 | Walworth |
Details
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Peshtigo Flowage | Verified | 515800 | Marinette |
Details
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Round Lake | Verified | 446700 | Oconto |
Details
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Sandstone Flowage | Verified | 531300 | Marinette |
Details
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2018 (6) |
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