STILLMAN VALLEY
PWS ID: IL1410550 · STILLMAN VALLEY, Illinois 61084
Population Served
1,200
Total Violations
20
Health-Based Violations
0
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Local
- Connections
- 514
- County
- Ogle
- School/Daycare
- No
- MCL Violations
- 0
- Monitoring Violations
- 12
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Coliform (TCR) | MR | 7 | 2003 |
| Gross Alpha, Excl. Radon and U | MR | 3 | 2000 |
| Combined Radium (-226 and -228) | MR | 2 | 2000 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.