HENDERSON
PWS ID: IL0950250 · HENDERSON, Illinois 61439
Population Served
375
Total Violations
103
Health-Based Violations
33
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Local
- Connections
- 150
- County
- Knox
- School/Daycare
- No
- MCL Violations
- 31
- Monitoring Violations
- 53
- Treatment Tech Violations
- 2
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Coliform (TCR) | MCL | 18 | 2005 |
| Coliform (TCR) | MR | 13 | 1999 |
| Lead and Copper Rule | MR | 13 | 2022 |
| Fluoride | MCL | 13 | 1985 |
| TTHM | MR | 10 | 2025 |
| Total Haloacetic Acids (HAA5) | MR | 8 | 2025 |
| Chlorine | MR | 5 | 2017 |
| Consumer Confidence Rule | Other | 4 | 2025 |
| LEAD AND COPPER RULE REVISIONS | RPT | 4 | 2025 |
| Revised Total Coliform Rule | MON | 3 | 2017 |
| Public Notice | Other | 3 | 2025 |
| LEAD AND COPPER RULE REVISIONS | TT | 2 | 2024 |
| 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.