CITY OF WILLIAMS
California — Community Water System — PWSID: CA0610004
System Information
| PWSID | CA0610004 |
| System Name | CITY OF WILLIAMS |
| System Type | Community Water System |
| Water Source | Ground Water |
| Activity Status | Active |
| Owner Type | Local |
| EPA Region | 09 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Mar 22, 1979 |
| Last Reported | Nov 17, 2025 |
Location & Contact
| State | California |
| City | WILLIAMS |
| ZIP Code | 95987 |
| Address | P.O. Box 310 |
| Organization | MITCHELL, MICHAEL |
| Phone | 530-908-0407 |
Population & Service
| Population Served | 5,538 |
| Service Connections | 1,562 |
Drinking Water Violations (6)
This water system has 6 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Feb 1, 1996 | Feb 29, 1996 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Feb 29, 1996 | Total Coliform Rule |
| Feb 1, 1996 | Feb 29, 1996 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Feb 29, 1996 | Total Coliform Rule |
| Oct 1, 1993 | Oct 31, 1993 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Oct 31, 1993 | Total Coliform Rule |
| Oct 1, 1993 | Oct 31, 1993 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Oct 31, 1993 | Total Coliform Rule |
| Jul 1, 1992 | Jul 31, 1992 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Jul 31, 1992 | Total Coliform Rule |
| Jul 1, 1992 | Jul 31, 1992 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Jul 31, 1992 | Total Coliform 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.