Water Quality in Milwaukee, WI
Detailed water quality data for Milwaukee, Wisconsin including contaminant levels, EPA comparisons, AquaScore™ grading, and treatment recommendations.
Water utility: Milwaukee Water Works.
Water source: Lake Michigan.
Key Contaminants Found
- Chromium (hexavalent)
- Haloacetic acids (HAA5)
- Total trihalomethanes (TTHMs)
- Lead
- Radium-226 & -228
Milwaukee draws from Lake Michigan but has a troubled water history — the 1993 Cryptosporidium outbreak sickened 403,000 people. The city has since invested heavily in treatment, but lead service lines remain a concern.