LAHARPE
PWS ID: IL0670450 · LA HARPE, Illinois 61450
Population Served
1,200
Total Violations
161
Health-Based Violations
100
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Local
- Connections
- 634
- County
- Hancock
- School/Daycare
- No
- MCL Violations
- 35
- Monitoring Violations
- 38
- Treatment Tech Violations
- 65
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Surface Water Treatment Rule | TT | 34 | 1994 |
| CARBON, TOTAL | TT | 18 | 2009 |
| Total Haloacetic Acids (HAA5) | MCL | 18 | 2016 |
| Atrazine | MCL | 12 | 1997 |
| Interim Enhanced Surface Water Treatment Rule | MR | 9 | 2016 |
| Interim Enhanced Surface Water Treatment Rule | TT | 9 | 2017 |
| Surface Water Treatment Rule | MR | 8 | 1995 |
| Chlorine | MR | 8 | 2020 |
| Revised Total Coliform Rule | MON | 8 | 2020 |
| Consumer Confidence Rule | Other | 5 | 2025 |
| Coliform (TCR) | MCL | 5 | 2009 |
| Combined Radium (-226 and -228) | MR | 4 | 2021 |
| LEAD AND COPPER RULE REVISIONS | TT | 3 | 2024 |
| Public Notice | Other | 2 | 2016 |
| Gross Alpha, Excl. Radon and U | MR | 1 | 1977 |
| Lead and Copper Rule | TT | 1 | 2025 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.