For communities across Wisconsin, access to safe, clean, affordable drinking water is a persistent concern. Lead service lines, aging water infrastructure, and harmful contaminates like nitrates are among the many factors that necessitate extensive—and expensive—repairs to drinking water, wastewater, and stormwater systems throughout the state. Two federal-state partnerships—the Clean Water State Revolving Fund (CWSRF) and Drinking Water State Revolving Fund (DWSRF) are integral to provide financial support for these necessary updates.

In groundwater sources across Wisconsin, an invisible pollutant is degrading aquatic ecosystems, threatening human health, and costing local communities millions of dollars. This chemical, known as nitrate, is the most widespread groundwater contaminant in Wisconsin, and it can cause serious problems. According to a new report, nitrate pollution has climbed steadily since 2013, affecting both municipal drinking water systems and private wells.