Lasalle County Water Violations
Lasalle County in Illinois has 21 active public water systems. Together, these systems have 44 health-based violations on record out of 489 total. Health-based violations indicate a contaminant exceeded EPA limits or required treatment was not performed.
| Water System | Population Served | Source | Violations | Health-Based |
|---|---|---|---|---|
| La Salle | 9,700 | Groundwater | 23 | 11 |
| Ottawa | 18,097 | Groundwater | 222 | 7 |
| Mendota | 6,926 | Groundwater | 11 | 6 |
| North Utica | 1,400 | Groundwater | 60 | 5 |
| Grand Ridge | 515 | Groundwater | 30 | 4 |
| Lostant | 463 | Groundwater | 13 | 4 |
| Peru | 10,300 | Groundwater | 13 | 3 |
| Four Star Campground | 250 | Groundwater | 13 | 2 |
| Marseilles | 5,061 | Groundwater | 13 | 1 |
| Oglesby | 4,500 | Groundwater | 5 | 1 |
| Ilog Oglesby Mhp, LLC | 88 | Groundwater Purchased | 25 | 0 |
| Leland | 951 | Groundwater | 12 | 0 |
| Naplate | 465 | Groundwater | 12 | 0 |
| Il American-Leonore | 111 | Groundwater | 11 | 0 |
| Mendota Estates MHP | 110 | Groundwater Purchased | 11 | 0 |
| Marseilles South | 100 | Groundwater | 5 | 0 |
| Seneca | 2,353 | Groundwater | 4 | 0 |
| Tonica | 705 | Groundwater | 4 | 0 |
| Il American-Streator | 19,000 | Surface Water | 1 | 0 |
| Rutland | 259 | Groundwater | 1 | 0 |
| Earlville | 1,613 | Groundwater | 0 | 0 |