OFALLON PWS
Missouri — Community Water System — PWSID: MO6010588
System Information
| PWSID | MO6010588 |
| System Name | OFALLON PWS |
| System Type | Community Water System |
| Water Source | Surface Water Purchased |
| Activity Status | Active |
| Owner Type | Local |
| EPA Region | 07 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Mar 7, 1980 |
| Last Reported | Mar 25, 2026 |
Location & Contact
| State | Missouri |
| City | O FALLON |
| ZIP Code | 63366-0000 |
| Address | 100 N MAIN ST - CITY HALL |
| Organization | HERIGODT, JAY |
| Phone | 636-379-3801 |
Population & Service
| Population Served | 32,515 |
| Service Connections | 13,527 |
Drinking Water Violations (13)
This water system has 13 violations recorded in the EPA SDWIS database.
| Begin Date | End Date | Contaminant | Category | Health-Based | Major | Measured | Federal MCL | State MCL | Status | Return to Compliance | Rule |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Jun 1, 2025 | Jun 30, 2025 | MR | No | Yes | — | — | — | Resolved | Jun 30, 2025 | — | |
| Jun 1, 2025 | Jun 30, 2025 | MR | No | Yes | — | — | — | Resolved | Jun 30, 2025 | — | |
| Jun 1, 2025 | Jun 30, 2025 | MR | No | Yes | — | — | — | Resolved | Jun 30, 2025 | — | |
| Jun 25, 1991 | Jul 24, 1991 | MCL | Yes | No | — | 5% of samples | — | Archived | Jul 24, 1991 | — | |
| — | — | — | No | No | — | — | — | — | — | — | |
| — | — | — | No | No | — | — | — | — | — | — | |
| — | — | — | No | No | — | — | — | — | — | — | |
| — | — | — | No | No | — | — | — | — | — | — | |
| — | — | — | No | No | — | — | — | — | — | — | |
| — | — | — | No | No | — | — | — | — | — | — | |
| — | — | — | No | No | — | — | — | — | — | — | |
| — | — | — | No | No | — | — | — | — | — | — | |
| — | — | — | No | No | — | — | — | — | — | — |
About This Water System
Public water system data comes from the EPA Safe Drinking Water Information System (SDWIS). Systems with violations must notify customers. Contact your water utility for the latest annual water quality report.