Williamsville
PWSID IL1671300 · Williamsville, Illinois · serves 6,198 people · surface water source
A
Excellent
Violation history
| Date | Violation | Type | Health-based | Status |
|---|---|---|---|---|
| 2025-01-01 | TTHM | MR | No | Resolved |
| 2025-01-01 | Total Haloacetic Acids (HAA5) | MR | No | Resolved |