WALNUT HILL
PWS ID: IL1210600 · CENTRALIA, Illinois 62801
Population Served
1,180
Total Violations
8
Health-Based Violations
0
Water Source
Surface Water
System Details
- System Type
- Community
- Owner Type
- Local
- Connections
- 472
- County
- Marion
- School/Daycare
- No
- MCL Violations
- 0
- Monitoring Violations
- 8
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Coliform (TCR) | MR | 4 | 1999 |
| Total Haloacetic Acids (HAA5) | MR | 4 | 2024 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.