O'Fallon, IL · St. Clair County
Water quality in O'Fallon, IL
1 community water system are based in O'Fallon, IL, collectively serving 46,603 people. See per-utility violations, contaminants, and lead service line status.
At a glance
- Community systems
- 1
- People served
- 47k
- Groundwater systems
- 0%
- 0 systems
- Surface water systems
- 100%
- 1 systems
Community water systems based in O'Fallon
Systems whose EPA-filed administrative city is O'Fallon, sorted by population served. Regional authorities that serve O'Fallon but are based elsewhere are not listed here; check the ZIP lookup for a service-area-based answer.
- 1. O FALLON
St. Clair · PWSID IL1631100
47k served