As the season shifts, we say farewell to Rachel Delwiche, our 2018 La Crosse Area Aquatic Invasive Species (AIS) Summer Intern. Rachel teamed up with Scott Caven (our Aquatic Invasive Species Manager) this summer to tackle AIS issues on the Mississippi River and major tributaries in western... Read More

This fall, water hyacinth—a prohibited invasive species under NR 40, Wisconsin's Invasive Species Rule—was discovered in Pool 8 of the Upper Mississippi River. Water hyacinth, native to South America, is a highly invasive aquatic plant that can form thick mats and degrade water quality. It... Read More

    Water lovers of all ages are invited to join a statewide search for aquatic invasive species on August 18th, 2018. This fun, hands-on effort, known as Snapshot Day, relies on participants to monitor local lakes and streams at designated sites across the state for... Read More

The Great Lakes Compact and Agreement, enacted in 2008, are historic bi-national agreements to protect the Great Lakes from being drained or diverted. The Compact says that any diversions of Great Lakes water outside the basin should be rare and limited to diversions that primarily benefit... Read More

Wisconsin River at Pelican River

Recently, a blockage in the city of Wausau’s sanitary sewer lines resulted in the discharge of an estimated 3.7 million gallons of untreated sewage into the Wisconsin River, via a safety overflow bypass—a device designed for just such an event. The discharge began on January 19 and... Read More