Mercer County Water Violations
Mercer County in Illinois has 10 active public water systems. Together, these systems have 4 health-based violations on record out of 115 total. Health-based violations indicate a contaminant exceeded EPA limits or required treatment was not performed.
| Water System | Population Served | Source | Violations | Health-Based |
|---|---|---|---|---|
| New Windsor | 740 | Groundwater | 20 | 3 |
| Sherrard | 785 | Groundwater | 13 | 1 |
| Viola | 970 | Groundwater | 25 | 0 |
| Joy | 377 | Groundwater | 21 | 0 |
| Seaton | 214 | Groundwater | 12 | 0 |
| Aledo | 3,470 | Groundwater | 6 | 0 |
| Keithsburg | 747 | Groundwater | 5 | 0 |
| New Boston | 613 | Groundwater | 5 | 0 |
| North Henderson | 172 | Groundwater | 5 | 0 |
| Matherville | 651 | Groundwater | 3 | 0 |