MODESTO
PWS ID: IL1170600 · MODESTO, Illinois 62667
Population Served
182
Total Violations
66
Health-Based Violations
49
Water Source
Surface Water
System Details
- System Type
- Community
- Owner Type
- Local
- Connections
- 120
- County
- Macoupin
- School/Daycare
- No
- MCL Violations
- 24
- Monitoring Violations
- 6
- Treatment Tech Violations
- 25
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Atrazine | MCL | 18 | 1995 |
| Interim Enhanced Surface Water Treatment Rule | TT | 15 | 2021 |
| CARBON, TOTAL | TT | 10 | 2025 |
| Coliform (TCR) | MR | 6 | 1995 |
| Coliform (TCR) | MCL | 6 | 2009 |
| Consumer Confidence Rule | Other | 4 | 2023 |
| Public Notice | Other | 2 | 2025 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.