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

Curly-Leaf Pondweed

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Total Locations: 968
Total Lakes and Rivers: 1005 *

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
Page 1 of 35
WaterbodyStatusWaterbody ID Code (WBIC)CountyDetails
2025 (1)
Otter Creek CLPVerified   Details
2024 (14)
Buffalo River Mouth CLPVerified5585084Buffalo Details
CLP on Ox Creek at County Road ZZVerified168600Marquette Details
Dell CreekVerified5029283Columbia, Juneau, Sauk Details
Eau Claire River CLPVerified2125600Eau Claire Details
Fox River - Miller Park On the FoxVerified117900Winnebago Details
Hawthorne Hills PondVerified and Vouchered9300Ozaukee Details
Koepmier LakeVerified5900Milwaukee Details
Little Arbor Vitae LakeVerified1545300Vilas Details
Little Friess LakeVerified and Vouchered853100Washington Details
Little Menomonee River at Leon TerraceVerified17600Milwaukee Details
McCartney Branch at the end of CTH NVerified964600Grant Details
Pickerel Lake Verified and Vouchered1590400Oneida Details
Shishebogama LakeVerified1539600Oneida, Vilas Details
Sweeny Lake Verified1589600Oneida Details
2023 (16)
Badfish CreekVerified799500Rock Details
Beaver Dam River Verified831400Dodge Details
Blake ForkVerified5577372Grant Details
Bradley LakeVerified100000Door Details
Brown Deer Park PondVerified19900Milwaukee Details
Clear Lake Verified2329000Vilas Details
Elton CreekVerified   Details
Elvers CreekVerified5035549Dane Details
Gilbert LakeVerified and Vouchered25600Washington Details
Little Friess LakeVerified853100Washington Details
Pine CreekVerified   Details
Silver LakeVerified and Vouchered741700Walworth 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].