Tap water in Madison, WI — ZIP 53711

2 public water systems serving about 301,900 people. PFAS "forever chemicals" have been detected here.

Fair

PFAS detected: at least one system serving this ZIP reported PFAS in EPA UCMR 5 testing. Levels and the 2024 federal limits are shown per system below.

Water systems serving 53711

Madison Water Utility

PWSID WI1130224 · serves 272,000 · groundwater

1 health-based / 2 total violations (5 yrs) · PFAS up to 46.5 ppt

Fitchburg Utility Dist 1

PWSID WI1130231 · serves 29,900 · groundwater

0 health-based / 0 total violations (5 yrs)

Grades summarize EPA SDWIS violation records (last 5 years) and UCMR 5 PFAS results. They are informational, not a health determination. Methodology