Wisconsin surface waters
- Wisconsin’s abundant waters
Wisconsin is water rich, with thousands of streams stretching nearly 84,000 miles, inland lakes that span more than 1 million acres, 1,000 miles of Great Lakes shoreline and more than five million wetland acres. Beneath this surface water bounty lies an equally rich supply of groundwater.
Yet, these resources are fragile, at risk from pollution, over-development, runoff, invasive species and more. The WDNR is dedicated to protecting, assessing and restoring surface water and groundwater in the state.
- New and Pending Webpage Updates
- Water programs
- Projects & partnerships
- Reports, Summaries & Data