DORCHESTER
PWS ID: IL1170250 · DORCHESTER, Illinois 62033
Population Served
562
Total Violations
79
Health-Based Violations
27
Water Source
Surface Water
System Details
- System Type
- Community
- Owner Type
- Local
- Connections
- 216
- County
- Macoupin
- School/Daycare
- No
- MCL Violations
- 27
- Monitoring Violations
- 29
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Atrazine | MCL | 23 | 1997 |
| Coliform (TCR) | MR | 21 | 1997 |
| Consumer Confidence Rule | Other | 6 | 2010 |
| Coliform (TCR) | MCL | 4 | 1996 |
| Lead and Copper Rule | MR | 4 | 2011 |
| Total Haloacetic Acids (HAA5) | MR | 2 | 2025 |
| TTHM | MR | 2 | 2025 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.