CITY OF COLUSA
California — Community Water System — PWSID: CA0610002
System Information
| PWSID | CA0610002 |
| System Name | CITY OF COLUSA |
| 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 | COLUSA |
| ZIP Code | 95932 |
| Address | 425 Webster St. |
| Organization | CAIN, JESSE |
| Phone | 530-458-4941 |
Population & Service
| Population Served | 6,447 |
| Service Connections | 2,276 |
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Mar 1, 2022 | Mar 31, 2022 | Revised Total Coliform Rule | MON | No | No | — | — | — | Resolved | Mar 31, 2022 | Revised Total Coliform Rule |
| Mar 1, 2022 | Mar 31, 2022 | Revised Total Coliform Rule | MON | No | No | — | — | — | Resolved | Mar 31, 2022 | Revised Total Coliform Rule |
| Jan 1, 2022 | Mar 31, 2022 | Revised Total Coliform Rule | MON | No | Yes | — | — | — | Resolved | Mar 31, 2022 | Revised Total Coliform Rule |
| Jan 1, 2022 | Mar 31, 2022 | Revised Total Coliform Rule | MON | No | Yes | — | — | — | Resolved | Mar 31, 2022 | Revised Total Coliform Rule |
| Dec 1, 1993 | Dec 31, 1993 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Dec 31, 1993 | Total Coliform Rule |
| Dec 1, 1993 | Dec 31, 1993 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Dec 31, 1993 | 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.