POTOSI PWS
PWS ID: MO6010659 · POTOSI, Missouri 63664-0000
Population Served
2,527
Total Violations
468
Health-Based Violations
414
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Local
- Connections
- 1,236
- County
- Washington
- School/Daycare
- No
- MCL Violations
- 414
- Monitoring Violations
- 27
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Coliform (TCR) | MCL | 185 | 2015 |
| Combined Radium (-226 and -228) | MCL | 122 | 2007 |
| Gross Alpha, Excl. Radon and U | MCL | 107 | 2007 |
| Coliform (TCR) | MR | 13 | 2002 |
| Public Notice | Other | 7 | 2024 |
| Revised Total Coliform Rule | MON | 4 | 2023 |
| E. COLI | MR | 4 | 2010 |
| Gross Alpha, Excl. Radon and U | MR | 3 | 2007 |
| Combined Radium (-226 and -228) | MR | 3 | 2007 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.