DELAVAN
PWS ID: IL1790150 · DELAVAN, Illinois 61734
Population Served
1,743
Total Violations
26
Health-Based Violations
0
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Local
- Connections
- 764
- County
- Tazewell
- School/Daycare
- No
- MCL Violations
- 0
- Monitoring Violations
- 18
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Coliform (TCR) | MR | 5 | 2010 |
| Lead and Copper Rule | MR | 4 | 2022 |
| TTHM | MR | 4 | 2024 |
| Chloramine | MR | 4 | 2010 |
| 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.