Population Served
32.5K
Service Connections
13.5K
Total Violations
13
Health-Based Violations
1
Lead & Copper Data
Lead Level
Caution1.48 ppb
Action Level: 15 ppb (EPA) · Sampled: 2025-12-31
015 ppb action level
Copper Level
No copper sampling data available
System Details
- Water Source
- Purchased Surface Water
- System Type
- Community Water System
- City
- O FALLON
- ZIP Code
- 63366-0000
- Counties Served
- St. Charles
- Cities Served
- O FALLON
- Open Violations
- 0
- State
- Missouri
Violation Summary
13
Total Violations
1
Health-Based
0
Open Now
Most recent violation: 2025-06-01
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: MO6010588.SafeWater Home