CITY OF WESTMINSTER
California — Community Water System — PWSID: CA3010064
System Information
| PWSID | CA3010064 |
| System Name | CITY OF WESTMINSTER |
| System Type | Community Water System |
| Water Source | Surface Water Purchased |
| 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 | WESTMINSTER |
| ZIP Code | 92683 |
| Address | 14381 OLIVE STREET |
| Organization | MILLER, SCOTT |
| Phone | 714-548-3693 |
Population & Service
| Population Served | 90,911 |
| Service Connections | 20,763 |
Drinking Water Violations (8)
This water system has 8 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, 2013 | Jan 31, 2013 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Jan 31, 2013 | Total Coliform Rule |
| Jan 1, 2013 | Jan 31, 2013 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Jan 31, 2013 | Total Coliform Rule |
| Apr 1, 1993 | May 31, 1993 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | May 31, 1993 | Total Coliform Rule |
| Apr 1, 1993 | May 31, 1993 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | May 31, 1993 | Total Coliform Rule |
| Apr 1, 1993 | May 31, 1993 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | May 31, 1993 | Total Coliform Rule |
| Mar 1, 1993 | Mar 31, 1993 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Mar 31, 1993 | Total Coliform Rule |
| Mar 1, 1993 | Mar 31, 1993 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Mar 31, 1993 | Total Coliform Rule |
| Mar 1, 1989 | Mar 31, 1989 | Other | No | No | — | — | — | Archived | Mar 31, 1989 | Miscellaneous Other Rules |
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.