June 17, 2026
Radiologicals in Wisconsin Drinking Water 2026
Radiologicals in Wisconsin Drinking Water 2026
Radiologicals contamination has been detected in drinking water systems across Wisconsin. Radium and radon are naturally occurring radioactive elements linked to bone and lung cancer. Our analysis of Wisconsin water quality reports found Radiologicals present in 33 cities and water systems statewide. If you live in one of these communities, a certified home filter can significantly reduce your exposure -- browse Radiologicals filters at PureWaterGuys.
Cities in Wisconsin with Radiologicals Detected
The following 33 water systems in Wisconsin reported Radiologicals in their annual water quality reports. Click any city to read the full report.
| City / Water System | Water Quality Report |
|---|---|
| Barneveld Wi Water Quality Report 2026 | View Report |
| Beloit Wi Water Quality Report 2026 | View Report |
| Berlin Wi Water Quality Report 2026 | View Report |
| Boscobel Wi Water Quality Report 2026 | View Report |
| Brookfield Wi Water Quality Report 2026 | View Report |
| Browsville Wi Water Quality Report 2026 | View Report |
| Burlington Wi Water Quality Report 2026 | View Report |
| Cambria Wi Water Quality Report 2026 | View Report |
| Coleman Wi Water Quality Report 2026 | View Report |
| Costa Mesa Wi Water Quality Report 2026 | View Report |
| Elkhorn Wi Water Quality Report 2026 | View Report |
| Evansville Wi Water Quality Report 2026 | View Report |
| Genoa City Wi Water Quality Report 2026 | View Report |
| Jefferson Wi Water Quality Report 2026 | View Report |
| Juneau Wi Water Quality Report 2026 | View Report |
| Lake Mills Wi Water Quality Report 2026 | View Report |
| Lancaster Wi Water Quality Report 2026 | View Report |
| Lena Wi Water Quality Report 2026 | View Report |
| Marshall Wi Water Quality Report 2026 | View Report |
| Mayville Wi Water Quality Report 2026 | View Report |
| Miami Wi Water Quality Report 2026 | View Report |
| North Fond Du Lac Wi Water Quality Report 2026 | View Report |
| Oconto Wi Water Quality Report 2026 | View Report |
| Pell Lake Wi Water Quality Report 2026 | View Report |
| Pewaukee Wi Water Quality Report 2026 | View Report |
| Randolph Wi Water Quality Report 2026 | View Report |
| Ridgeway Wi Water Quality Report 2026 | View Report |
| South Wayne Wi Water Quality Report 2026 | View Report |
| Suamico Wi Water Quality Report 2026 | View Report |
| Sussex Wi Water Quality Report 2026 | View Report |
| Tomah Wi Water Quality Report 2026 | View Report |
| Waukesha Wi Water Quality Report 2026 | View Report |
| Winneconne Wi Water Quality Report 2026 | View Report |
What Does This Mean For You?
Detecting Radiologicals in your water supply does not necessarily mean immediate danger, but long-term exposure -- even at low levels -- carries measurable health risk. Reverse osmosis removes radium and uranium effectively. Aeration or activated carbon addresses radon.
Our recommendation: View Radiologicals filters certified for Wisconsin water conditions or take our free Water Finder Quiz to get a personalized recommendation.
Filter Radiologicals From Your Wisconsin Tap Water
PureWaterGuys carries NSF-certified filters proven to reduce Radiologicals and other contaminants found in Wisconsin water.
Shop Radiologicals Filters Take the Water QuizFrequently Asked Questions
What is Radiologicals?
Radium and radon are naturally occurring radioactive elements linked to bone and lung cancer.
Is Wisconsin tap water safe to drink?
Water quality varies by city. Of the Wisconsin systems we analyzed, 33 detected Radiologicals. Most levels are below EPA action thresholds, but long-term low-level exposure carries health risk. Check your city's report above or use a certified home filter as a precaution.
What filter removes Radiologicals from tap water?
Reverse osmosis removes radium and uranium effectively. Aeration or activated carbon addresses radon. See our Radiologicals filter options.
Data sourced from EPA-mandated annual water quality reports (Consumer Confidence Reports). Last updated: 2026. Not all systems are required to test for every contaminant.