CHESTER PUBLIC U.D.
California — Community Water System — PWSID: CA3210009
System Information
| PWSID | CA3210009 |
| System Name | CHESTER PUBLIC U.D. |
| 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 | CHESTER |
| ZIP Code | 96020 |
| Address | PO Box 503 |
| Organization | HOMME, ALLAN |
| Phone | 530-258-2171 |
Population & Service
| Population Served | 2,187 |
| Service Connections | 1,284 |
Drinking Water Violations (12)
This water system has 12 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Oct 1, 2021 | Oct 31, 2021 | Revised Total Coliform Rule | MCL | Yes | No | — | — | — | Resolved | Oct 31, 2021 | Revised Total Coliform Rule |
| Oct 1, 2021 | Oct 31, 2021 | Revised Total Coliform Rule | MCL | Yes | No | — | — | — | Resolved | Oct 31, 2021 | Revised Total Coliform Rule |
| Oct 1, 2021 | Oct 31, 2021 | Revised Total Coliform Rule | MCL | Yes | No | — | — | — | Resolved | Oct 31, 2021 | Revised Total Coliform Rule |
| Oct 1, 2013 | Oct 31, 2013 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Oct 31, 2013 | Total Coliform Rule |
| Oct 1, 2013 | Oct 31, 2013 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Oct 31, 2013 | Total Coliform Rule |
| Sep 1, 2013 | Sep 30, 2013 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Sep 30, 2013 | Total Coliform Rule |
| Sep 1, 2013 | Sep 30, 2013 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Sep 30, 2013 | Total Coliform Rule |
| Nov 1, 2006 | Nov 30, 2006 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Nov 30, 2006 | Total Coliform Rule |
| Nov 1, 2002 | Nov 30, 2002 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Nov 30, 2002 | Total Coliform Rule |
| Nov 1, 2002 | Nov 30, 2002 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Nov 30, 2002 | Total Coliform Rule |
| Oct 1, 2002 | Oct 31, 2002 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Oct 31, 2002 | Total Coliform Rule |
| Oct 1, 2002 | Oct 31, 2002 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Oct 31, 2002 | 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.