DOWNEY - CITY, WATER DEPT.
California — Community Water System — PWSID: CA1910034
System Information
| PWSID | CA1910034 |
| System Name | DOWNEY - CITY, WATER DEPT. |
| 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 | DOWNEY |
| ZIP Code | 90241 |
| Address | 11111 Brookshire Ave. |
| Organization | MUELLER, DAN |
| Phone | 562-904-7110 |
Population & Service
| Population Served | 108,816 |
| Service Connections | 23,459 |
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Feb 1, 2018 | — | Revised Total Coliform Rule | TT | Yes | No | — | — | — | Resolved | Sep 18, 2018 | Revised Total Coliform Rule |
| Feb 1, 2018 | — | Revised Total Coliform Rule | TT | Yes | No | — | — | — | Resolved | Sep 18, 2018 | Revised Total Coliform Rule |
| Sep 1, 2013 | Sep 30, 2013 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Sep 30, 2013 | Total Coliform Rule |
| Sep 1, 2013 | Sep 30, 2013 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Sep 30, 2013 | Total Coliform Rule |
| Sep 1, 2013 | Sep 30, 2013 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Sep 30, 2013 | Total Coliform Rule |
| May 24, 2012 | — | E. COLI | MR | No | Yes | — | — | — | Resolved | Jul 1, 2013 | Ground Water Rule |
| May 24, 2012 | — | E. COLI | MR | No | Yes | — | — | — | Resolved | Jul 1, 2013 | Ground Water Rule |
| May 24, 2012 | — | E. COLI | MR | No | Yes | — | — | — | Resolved | Jul 1, 2013 | Ground Water Rule |
| Sep 1, 2008 | Sep 30, 2008 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Sep 30, 2008 | Total Coliform Rule |
| Sep 1, 2008 | Sep 30, 2008 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Sep 30, 2008 | Total Coliform Rule |
| Aug 1, 2003 | Aug 31, 2003 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Aug 31, 2003 | Total Coliform Rule |
| Aug 1, 2003 | Aug 31, 2003 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Aug 31, 2003 | 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.