SAN DIEGO, CITY OF
California - Community Water System - PWSID: CA3710020
System Information
| PWSID | CA3710020 |
| System Name | SAN DIEGO, CITY OF |
| System Type | Community Water System |
| Water Source | Surface Water |
| Activity Status | Active |
| Owner Type | Local |
| EPA Region | 09 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Mar 22, 1979 |
| Last Reported | Mar 20, 2026 |
Location & Contact
| State | California |
| City | SAN DIEGO |
| ZIP Code | 92123 |
| Address | 9192 Topaz Way |
| Organization | GUERREIRO, JUAN |
| Phone | 858-292-6436 |
Population & Service
| Population Served | 1,385,379 |
| Service Connections | 282,783 |
Drinking Water Violations (33)
This water system has 33 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Apr 1, 2020 | Apr 30, 2020 | MON | No | No | - | - | - | Resolved | Apr 30, 2020 | - | |
| Apr 1, 2020 | Apr 30, 2020 | MON | No | No | - | - | - | Resolved | Apr 30, 2020 | - | |
| Mar 1, 2020 | Mar 31, 2020 | MON | No | No | - | - | - | Resolved | Mar 31, 2020 | - | |
| Mar 1, 2020 | Mar 31, 2020 | MON | No | No | - | - | - | Resolved | Mar 31, 2020 | - | |
| Feb 1, 2020 | Feb 29, 2020 | MON | No | No | - | - | - | Resolved | Feb 29, 2020 | - | |
| Feb 1, 2020 | Feb 29, 2020 | MON | No | No | - | - | - | Resolved | Feb 29, 2020 | - | |
| Jan 1, 2020 | Jan 31, 2020 | MON | No | No | - | - | - | Resolved | Jan 31, 2020 | - | |
| Jan 1, 2020 | Jan 31, 2020 | MON | No | No | - | - | - | Resolved | Jan 31, 2020 | - | |
| Dec 1, 2019 | Dec 31, 2019 | MON | No | No | - | - | - | Resolved | Dec 31, 2019 | - | |
| Dec 1, 2019 | Dec 31, 2019 | MON | No | No | - | - | - | Resolved | Dec 31, 2019 | - | |
| Jan 1, 2017 | Dec 31, 2017 | MR | No | No | - | 10 mg/L | - | Resolved | Dec 31, 2017 | - | |
| Jan 1, 2017 | Dec 31, 2017 | MR | No | No | - | 10 mg/L | - | Resolved | Dec 31, 2017 | - | |
| Jan 1, 2017 | Dec 31, 2017 | MR | No | No | - | 10 mg/L | - | Resolved | Dec 31, 2017 | - | |
| Jan 1, 2017 | Dec 31, 2017 | MR | No | No | - | 10 mg/L | - | Resolved | Dec 31, 2017 | - | |
| Jan 1, 2014 | Dec 31, 2014 | MR | No | No | - | 10 mg/L | - | Resolved | Dec 31, 2014 | - | |
| Jan 1, 2014 | Dec 31, 2014 | MR | No | No | - | 10 mg/L | - | Resolved | Dec 31, 2014 | - | |
| Jan 1, 2014 | Dec 31, 2016 | MR | No | No | - | 1 mg/L | - | Resolved | Dec 31, 2016 | - | |
| Jan 1, 2014 | Dec 31, 2016 | MR | No | No | - | 1 mg/L | - | Resolved | Dec 31, 2016 | - | |
| Jan 1, 2013 | Dec 31, 2013 | MR | No | No | - | 10 mg/L | - | Resolved | Dec 31, 2013 | - | |
| Jan 1, 2013 | Dec 31, 2013 | MR | No | No | - | 10 mg/L | - | Resolved | Dec 31, 2013 | - | |
| Jan 1, 2011 | Dec 31, 2013 | MR | No | No | - | 1 mg/L | - | Resolved | Dec 31, 2013 | - | |
| Jan 1, 2011 | Dec 31, 2013 | MR | No | No | - | 1 mg/L | - | Resolved | Dec 31, 2013 | - | |
| Nov 1, 2004 | Nov 30, 2004 | MCL | Yes | No | - | 5% of samples | - | Resolved | Nov 30, 2004 | - | |
| Nov 1, 2004 | Nov 30, 2004 | MCL | Yes | No | - | 5% of samples | - | Resolved | Nov 30, 2004 | - | |
| Jul 1, 2001 | Jul 31, 2001 | MR | No | No | - | 5% of samples | - | Resolved | Jul 31, 2001 | - | |
| Jul 1, 2001 | Jul 31, 2001 | MR | No | No | - | 5% of samples | - | Resolved | Jul 31, 2001 | - | |
| - | - | - | No | No | - | - | - | - | - | - | |
| - | - | - | No | No | - | - | - | - | - | - | |
| - | - | - | No | No | - | - | - | - | - | - | |
| - | - | - | No | No | - | - | - | - | - | - | |
| - | - | - | No | No | - | - | - | - | - | - | |
| - | - | - | No | No | - | - | - | - | - | - | |
| - | - | - | No | No | - | - | - | - | - | - |
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.