COFFEEN
PWS ID: IL1350150 · AVISTON, Illinois 62216
Population Served
647
Total Violations
158
Health-Based Violations
30
Water Source
Surface Water
System Details
- System Type
- Community
- Owner Type
- Local
- Connections
- 290
- County
- Montgomery
- School/Daycare
- No
- MCL Violations
- 30
- Monitoring Violations
- 82
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Coliform (TCR) | MR | 32 | 2005 |
| Chlorine | MR | 20 | 2018 |
| Total Haloacetic Acids (HAA5) | MCL | 18 | 2019 |
| Atrazine | MCL | 12 | 1995 |
| TTHM | MR | 8 | 2024 |
| Consumer Confidence Rule | Other | 8 | 2024 |
| Public Notice | Other | 6 | 2019 |
| Lead and Copper Rule | MR | 5 | 2025 |
| Total Haloacetic Acids (HAA5) | MR | 4 | 2005 |
| Revised Total Coliform Rule | MON | 4 | 2018 |
| Barium | MR | 1 | 1979 |
| Arsenic | MR | 1 | 1979 |
| Cadmium | MR | 1 | 1979 |
| Gross Alpha, Excl. Radon and U | MR | 1 | 1977 |
| Chromium | MR | 1 | 1979 |
| Selenium | MR | 1 | 1979 |
| Fluoride | MR | 1 | 1979 |
| Mercury | MR | 1 | 1979 |
| Nitrate | MR | 1 | 1979 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.