WILLOW HILL
PWS ID: IL0790300 · WILLOW HILL, Illinois 62480
Population Served
309
Total Violations
131
Health-Based Violations
8
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Local
- Connections
- 126
- County
- Jasper
- School/Daycare
- No
- MCL Violations
- 8
- Monitoring Violations
- 81
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Chlorine | MR | 26 | 2022 |
| Lead and Copper Rule | MR | 17 | 2023 |
| Coliform (TCR) | MR | 16 | 2014 |
| Revised Total Coliform Rule | MON | 13 | 2022 |
| Consumer Confidence Rule | Other | 10 | 2023 |
| Coliform (TCR) | MCL | 8 | 2011 |
| Public Notice | Other | 4 | 2016 |
| Total Haloacetic Acids (HAA5) | MR | 4 | 2015 |
| TTHM | MR | 4 | 2015 |
| 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.