Population Served
13.4K
Service Connections
3.7K
Total Violations
35
Health-Based Violations
35
Lead & Copper Data
Lead Level
No lead sampling data available
Copper Level
No copper sampling data available
System Details
- Water Source
- Groundwater
- System Type
- Community Water System
- City
- O'FALLON
- ZIP Code
- 63366
- Counties Served
- St. Charles
- Cities Served
- O'Fallon
- Open Violations
- 0
- State
- Missouri
Violation Summary
35
Total Violations
35
Health-Based
0
Open Now
Most recent violation: 1979-07-17
Explore Missouri Water Quality
See all water systems, lead data, and violation trends for Missouri.
Data source: EPA ECHO SDWIS Bulk Download (Jan 2026). PWSID: MO6024529.SafeWater Home