SAN DIEGO, CA · San Diego County
SAN DIEGO, CITY OF Water System
Current status
No open violations on record as of July 4, 2026.
This system's next federally required Consumer Confidence Report is due July 1, 2027, under the EPA's revised reporting rule.
Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed July 4, 2026. This is a record-keeping and public-information tool — it does not replace California’s official records. Always confirm current status with California before making decisions based on this information.
System facts
- System ID (PWSID)
- CA3710020
- System type
- Community Water System
- Population served
- 1,385,379
- Service connections
- 282,783
- Ownership
- local government
- Water source
- surface water (rivers, lakes, or reservoirs)
Violation history
Monitoring, Routine (RTCR)
—Revised Total Coliform Rule
April 1, 2020 – April 30, 2020
ResolvedMonitoring, Routine (RTCR)
—Revised Total Coliform Rule
March 1, 2020 – March 31, 2020
ResolvedMonitoring, Routine (RTCR)
—Revised Total Coliform Rule
January 1, 2020 – January 31, 2020
ResolvedMonitoring, Regular
—Nitrite
January 1, 2014 – December 31, 2016
ResolvedMaximum Contaminant Level Violation, Acute (TCR)
Health-basedColiform (TCR)
November 1, 2004 – November 30, 2004
ResolvedMonitoring, Repeat Major (TCR)
—Coliform (TCR)
July 1, 2001 – July 31, 2001
Resolved
Resolved addressed and confirmed by the state
| Period | Violation | Contaminant / rule | Health-based | Status |
|---|---|---|---|---|
| April 1, 2020 – April 30, 2020 | Monitoring, Routine (RTCR) | Revised Total Coliform Rule | — | Resolved |
| March 1, 2020 – March 31, 2020 | Monitoring, Routine (RTCR) | Revised Total Coliform Rule | — | Resolved |
| January 1, 2020 – January 31, 2020 | Monitoring, Routine (RTCR) | Revised Total Coliform Rule | — | Resolved |
| January 1, 2014 – December 31, 2016 | Monitoring, Regular | Nitrite | — | Resolved |
| November 1, 2004 – November 30, 2004 | Maximum Contaminant Level Violation, Acute (TCR) | Coliform (TCR) | Health-based | Resolved |
| July 1, 2001 – July 31, 2001 | Monitoring, Repeat Major (TCR) | Coliform (TCR) | — | Resolved |
Resolved addressed and confirmed by the state
Enforcement actions
- September 15, 2020State Administrative/Compliance Order with penalty issued5 linked violations
- May 31, 2020State Compliance achieved5 linked violations
- May 11, 2020State Formal Notice of Violation issuedgeneral compliance action — not tied to a specific violation on record
- March 25, 2020State Compliance achievedgeneral compliance action — not tied to a specific violation on record
- April 19, 2018State Formal Notice of Violation issued6 linked violations
- January 24, 2018State Compliance achieved6 linked violations
- February 4, 2010State Violation/Reminder Notice1 linked violation
- January 5, 2007State Administrative/Compliance Order without penalty issued1 linked violation
- February 17, 2005State Compliance achieved1 linked violation
- December 29, 2004State Administrative Penalty assessed1 linked violation
- March 9, 2004State Compliance Meeting conductedgeneral compliance action — not tied to a specific violation on record
- September 5, 2003State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
- August 31, 2001State Compliance achieved1 linked violation
Contact
GUERREIRO, JUAN
858-292-6436
SAN DIEGO, CA 92123