WASHINGTON COUNTY PWSD 1
PWS ID: MO6024633 · POTOSI, Missouri 63664-0000
Population Served
503
Total Violations
201
Health-Based Violations
113
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Local
- Connections
- 210
- County
- Washington
- School/Daycare
- No
- MCL Violations
- 113
- Monitoring Violations
- 41
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Coliform (TCR) | MCL | 113 | 2015 |
| Coliform (TCR) | MR | 33 | 2010 |
| Public Notice | Other | 29 | 2015 |
| Consumer Confidence Rule | Other | 17 | 2025 |
| Lead and Copper Rule | MR | 8 | 2009 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.