KNOXVILLE
PWS ID: IL0950300 · KNOXVILLE, Illinois 61448
Population Served
3,120
Total Violations
332
Health-Based Violations
308
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Local
- Connections
- 1,320
- County
- Knox
- School/Daycare
- No
- MCL Violations
- 308
- Monitoring Violations
- 6
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Combined Radium (-226 and -228) | MCL | 217 | 2004 |
| Gross Alpha, Excl. Radon and U | MCL | 74 | 2002 |
| Fluoride | MCL | 13 | 1985 |
| Coliform (TCR) | MR | 5 | 1998 |
| Coliform (TCR) | MCL | 4 | 2007 |
| Consumer Confidence Rule | Other | 2 | 2023 |
| 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.