Is St. Clair, Missouri tap water safe?
1 water system report serving St. Clair. Your water depends on which one serves your address. Check your bill if unsure.
A
St Clair PWS
Serves 4,700 people · Groundwater · Full report →
No health-based violations in the last 5 years; 1 monitoring/reporting violation; PFAS tested (UCMR 5), none above federal limits; Lead 90th percentile below the action level (2025).