Population Served
100.6K
Service Connections
39.0K
Total Violations
18
Health-Based Violations
9
Lead & Copper Data
Lead Level
Safe0.00 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
- 63368-0000
- Counties Served
- St. Charles
- Cities Served
- O Fallon
- Open Violations
- 0
- State
- Missouri
Violation Summary
18
Total Violations
9
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: MO6024530.SafeWater Home