WILSONVILLE
PWS ID: IL1171200 · WILSONVILLE, Illinois 62093
Population Served
536
Total Violations
122
Health-Based Violations
23
Water Source
Surface Water
System Details
- System Type
- Community
- Owner Type
- Local
- Connections
- 260
- County
- Macoupin
- School/Daycare
- No
- MCL Violations
- 23
- Monitoring Violations
- 64
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Coliform (TCR) | MR | 34 | 2015 |
| Atrazine | MCL | 23 | 1997 |
| Total Haloacetic Acids (HAA5) | MR | 11 | 2024 |
| Lead and Copper Rule | MR | 8 | 2020 |
| TTHM | MR | 7 | 2024 |
| Chloramine | MR | 4 | 2015 |
| Consumer Confidence Rule | Other | 1 | 2025 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.