MC LEAN
PWS ID: IL1130850 · MC LEAN, Illinois 61754
Population Served
791
Total Violations
38
Health-Based Violations
18
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Local
- Connections
- 361
- County
- McLean
- School/Daycare
- No
- MCL Violations
- 18
- Monitoring Violations
- 7
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Arsenic | MCL | 18 | 2006 |
| Combined Radium (-226 and -228) | MR | 4 | 2017 |
| Consumer Confidence Rule | Other | 2 | 2023 |
| Coliform (TCR) | MR | 2 | 2000 |
| Lead and Copper Rule | MR | 1 | 1994 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.