Environmental Public Health Tracking: Water Data

Drinking water can come from a variety of sources, including public water supplies or private wells. We collect data on public water quality in Wisconsin, where most people get their drinking water. Good drinking water quality is important for disease prevention.

Return to the Data Dashboards page if you'd like to select a different topic.

Explore definitions and explanations of terminology found on this page, like age-adjusted rate and confidence intervals.

Frequently asked questions

Water data details

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Last revised January 17, 2025