LANARK
PWS ID: IL0150100 · LANARK, Illinois 61046
Population Served
1,504
Total Violations
23
Health-Based Violations
2
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Local
- Connections
- 691
- County
- Carroll
- School/Daycare
- No
- MCL Violations
- 2
- Monitoring Violations
- 10
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Consumer Confidence Rule | Other | 6 | 2023 |
| Lead and Copper Rule | MR | 5 | 2021 |
| Combined Radium (-226 and -228) | MR | 4 | 2020 |
| Revised Total Coliform Rule | RPT | 2 | 2023 |
| Coliform (TCR) | MCL | 2 | 1994 |
| 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.