Madison, WI Water Quality
Madison, WI has 1 public water system serving 272,000 people. The average Water Safety Score is 87/100 (B). 1 health violation are on record.
Water Systems in Madison
Contaminants Detected in Madison Water
| Contaminant | Systems Detected | Exceeding MCL |
|---|---|---|
| E. coli (RTCR) | 1 | 0 |
Frequently Asked Questions
Madison has 1 public water system serving 272,000 people. The average Water Safety Score is 87/100. There are 1 health violation on record. Check individual systems below for details.
Madison water systems have detected 1 contaminant, including E. coli (RTCR). No contaminant exceedances above EPA limits are currently recorded.
The Water Safety Score (0-100, grades A through F) weighs health-based violations (40%), contaminant exceedances (30%), enforcement history (20%), and monitoring violations (10%). Scores are based on EPA SDWIS data from the last 10 years.
Request your utility's Consumer Confidence Report (CCR), consider an independent water test from a certified lab, and look into NSF-certified water filters for specific contaminants of concern. For lead, run cold water for 30 seconds before drinking.
Water quality data sourced from EPA's Safe Drinking Water Information System. City data aggregates all public water systems serving the municipality.