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

Lake Onalaska -- Ramp

Location:

Lake Onalaska has the following aquatic invasive species:
Curly-Leaf Pondweed, Eurasian Water-Milfoil, Faucet Snail, Hybrid Eurasian / Northern Water-Milfoil, Purple Loosestrife, Water Hyacinth, Water Lettuce, Yellow Iris To Excel
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DatePrior WaterbodyCountyWBICKnown Aquatic Invasive Species
06/11/2023Black River/Mississippi RiverLa Crosse County0Information Not Available
08/13/2022Partidge LakeWaupaca County0Information Not Available
08/13/2022Turtle LakeBarron County0Information Not Available
07/03/2022Madison ChainDane County0Information Not Available
07/03/2022Chippewa FlowageSawyer County0Information Not Available
07/01/2022Blue LakeLa Crosse County0Information Not Available
06/12/2022Fort McCoyMonroe County0Information Not Available
06/20/2021Black RiverJackson County0Information Not Available
06/20/2020Mississippi River - Bryce Prarrie La Crosse County0Information Not Available
06/20/2020Round LakeLa Crosse County0Information Not Available
09/30/2018Black RiverLa Crosse County0Information Not Available
08/25/2018Lake Pepin 731800Zebra Mussel
08/05/2018Wisconsin RiverSauk County0Information Not Available
08/05/2018Black RiverLa Crosse County0Information Not Available
07/22/2018Mississippi RiverTrempealeau County0Information Not Available
07/22/2018Sandy LakeMonroe County1649400Eurasian Water-Milfoil
07/22/2018Arbutus Lake*Jackson County1727700Phragmites (non-native)
07/15/2018Clinton St.La Crosse County0Information Not Available
06/24/2018Mississippi Pool 8La Crosse County0Information Not Available
06/24/2018Neshonoc LakeLa Crosse County1653500Curly-Leaf Pondweed, Japanese knotweed (Fallopia japonica), Purple Loosestrife
06/15/2018Mississippi RiverTrempealeau County0Information Not Available
05/28/2018Mississippi RiverLa Crosse County0Information Not Available
05/28/2018Mississippi RiverLa Crosse County0Information Not Available
05/28/2018NeshonocLa Crosse County0Information Not Available
05/28/2018Mississippi RiverTrempealeau County0Information Not Available
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