POTOMAC
PWS ID: IL1830650 · POTOMAC, Illinois 61865
Population Served
685
Total Violations
51
Health-Based Violations
2
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Local
- Connections
- 299
- County
- Vermilion
- School/Daycare
- No
- MCL Violations
- 0
- Monitoring Violations
- 27
- Treatment Tech Violations
- 2
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Chlorine | MR | 10 | 2021 |
| Public Notice | Other | 9 | 2025 |
| Coliform (TCR) | MR | 5 | 1998 |
| Consumer Confidence Rule | Other | 4 | 2022 |
| Total Haloacetic Acids (HAA5) | MR | 4 | 2019 |
| Revised Total Coliform Rule | MON | 4 | 2021 |
| Lead and Copper Rule | MR | 3 | 2019 |
| LEAD AND COPPER RULE REVISIONS | RPT | 3 | 2025 |
| LEAD AND COPPER RULE REVISIONS | TT | 2 | 2024 |
| Gross Alpha, Excl. Radon and U | MR | 1 | 1977 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.