HICKORY GROVE LAKE COMPANY
PWS ID: IL3001248 · MONMOUTH, Illinois 61462
Population Served
25
Total Violations
54
Health-Based Violations
15
Water Source
Groundwater
System Details
- System Type
- Transient Non-Community
- Owner Type
- Public/Private
- Connections
- 1
- County
- Warren
- School/Daycare
- No
- MCL Violations
- 3
- Monitoring Violations
- 29
- Treatment Tech Violations
- 12
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Revised Total Coliform Rule | TT | 12 | 2024 |
| Revised Total Coliform Rule | MON | 12 | 2024 |
| Nitrate | MR | 9 | 2023 |
| Coliform (TCR) | MR | 8 | 2010 |
| Public Notice | Other | 7 | 2025 |
| Coliform (TCR) | MCL | 3 | 2010 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.