DANE COUNTY, Wis. (Jan. 22, 2026) –The salt applied to Wisconsin roads and sidewalks each winter doesn’t disappear when the snow melts. It washes into local lakes, rivers, and even drinking water. To spotlight the growing problem — and what communities can do about it — WI Salt Wise is hosting Winter Salt Week, Jan. 26–30.
The week, recognized by Gov. Tony Evers, the Dane County Board of Supervisors, and the Capital Area Regional Planning Commission, will bring together partners and experts from across the country for a series of free, livestreamed events. WI Salt Wise’s goal is to reach more than 1,000 participants nationwide, surpassing last year’s engagement of more than 900 people from over 30 states.
“A single teaspoon of salt can make five gallons of water toxic for aquatic life,” said Allison Madison, WI Salt Wise Program Manager. “Now imagine millions of tons being spread every winter. That’s why this is such a serious and growing problem for our waters.”
Beyond degrading lakes and streams, road salt accelerates corrosion of roads, bridges, vehicles, and other infrastructure, leading to millions of dollars in damage each year. It can also irritate pets’ paws, harm vegetation, and degrade soils. But experts say the most concerning impact is what’s happening out of sight — in drinking water.
In Wisconsin, 38% of community wells have exceeded the Wisconsin Department of Health Services’ recommended sodium level for people on low-salt diets at least once since 2004.
“Once salt is in our drinking water, there’s no practical way to remove it,” Madison added. “Prevention is the most effective and cost-efficient approach.”
Winter Salt Week centers on raising awareness — sharing proven solutions, and helping residents, businesses, and communities reduce salt use while still maintaining winter safety. More information, event details, and resources are available at https://wintersaltweek.org/. Those interested in supporting WI Salt Wise’s work can also donate at https://www.wisaltwise.com/Donate.
