WILLIAMSVILLE
Illinois — Community Water System — PWSID: IL1671300
System Information
| PWSID | IL1671300 |
| System Name | WILLIAMSVILLE |
| System Type | Community Water System |
| Water Source | Surface Water Purchased |
| Activity Status | Active |
| Owner Type | Local |
| EPA Region | 05 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Feb 13, 1981 |
| Last Reported | Dec 4, 2025 |
Location & Contact
| State | Illinois |
| City | WILLIAMSVILLE |
| ZIP Code | 62693 |
| Address | VILLAGE HALL |
| Organization | THOMPSON, KENT |
| Phone | 217-566-3806 |
Population & Service
| Population Served | 6,198 |
| Service Connections | 2,678 |
Drinking Water Violations (2)
This water system has 2 violations recorded in the EPA SDWIS database.
| Begin Date | End Date | Contaminant | Category | Health-Based | Major | Measured | Federal MCL | State MCL | Status | Return to Compliance | Rule |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Jan 1, 2025 | Mar 31, 2025 | Total Haloacetic Acids (HAA5) | MR | No | Yes | — | 0.060 mg/L | — | Resolved | Mar 31, 2025 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Jan 1, 2025 | Mar 31, 2025 | Total Haloacetic Acids (HAA5) | MR | No | Yes | — | 0.060 mg/L | — | Resolved | Mar 31, 2025 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
About This Water System
Public water system data comes from the EPA Safe Drinking Water Information System (SDWIS). Systems with violations must notify customers. Contact your water utility for the latest annual water quality report.