Contact information
For information on Lakes in Wisconsin, contact:
DNR Lake
Division of Water
Bureau of Water Quality
Clean Boats, Clean Waters Contacts

Rock River -- Access at State Hwy 26

Location:

To Excel
DatePrior WaterbodyCountyWBICKnown Aquatic Invasive Species
06/21/2019Lake RipleyJefferson County809600Chinese Mystery Snail, Curly-Leaf Pondweed, Eurasian Water-Milfoil, Hybrid Eurasian / Northern Water-Milfoil, Purple Loosestrife, Zebra Mussel
06/21/2019Lake KegonsaDane County802600Chinese Mystery Snail, Curly-Leaf Pondweed, Eurasian Water-Milfoil, Spiny Waterflea, Zebra Mussel
06/01/2018Lac La BelleWaukesha County848800Asiatic Clam (Corbicula)
06/01/2018Lake WaubesaDane County803700Chinese Mystery Snail, Curly-Leaf Pondweed, Eurasian Water-Milfoil, Purple Loosestrife, Spiny Waterflea, Zebra Mussel
06/01/2018Lake WisconsinColumbia County1260600Curly-Leaf Pondweed, Eurasian Water-Milfoil, Zebra Mussel
06/18/2016Pewaukee LakeWaukesha County772000Chinese Mystery Snail, Curly-Leaf Pondweed, Eurasian Water-Milfoil, Purple Loosestrife, Starry Stonewort, Zebra Mussel
06/18/2016Green LakeGreen Lake County146100Rusty Crayfish
06/18/2016Rock LakeJefferson County830700Banded Mystery Snail, Chinese Mystery Snail, Curly-Leaf Pondweed, Eurasian Water-Milfoil, Hybrid Eurasian / Northern Water-Milfoil, Yellow Iris, Zebra Mussel
07/19/2015Castle Rock LakeAdams County1345700Eurasian Water-Milfoil, Zebra Mussel
09/29/2013Rock LakeJefferson County830700Banded Mystery Snail, Chinese Mystery Snail, Curly-Leaf Pondweed, Eurasian Water-Milfoil, Hybrid Eurasian / Northern Water-Milfoil, Yellow Iris, Zebra Mussel