SAN DIEGO, CA · San Diego County
SAN DIEGO, CITY OF Water System
Consumer Confidence Report status
SAN DIEGO, CITY OF must publish a Consumer Confidence Report — the annual drinking water quality report covering calendar year 2026 — by July 1, 2027.
As of August 1, 2026, EPA's federal records show no open violations for SAN DIEGO, CITY OF.
Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed August 1, 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)
SAN DIEGO, CITY OF is the third largest community water system in California, serving 1,385,379 people from surface water.
As of August 1, 2026, its federal record holds 1 entry in 2020, all of which EPA lists as closed. Nothing has been added since 2020.
All 1 are monitoring and reporting requirements — the category that accounts for about four in five of all violations in EPA's national dataset — rather than findings about the water itself. The record involves the Total Coliform Rules.
Violation history
Monitoring, Routine (RTCR)
—Revised Total Coliform Rule
March 1, 2020 – March 31, 2020
Resolved
Resolved addressed and confirmed by the state
| Period | Violation | Contaminant / rule | Health-based | Status |
|---|---|---|---|---|
| March 1, 2020 – March 31, 2020 | Monitoring, Routine (RTCR) | Revised Total Coliform Rule | — | 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
Common questions
Is SAN DIEGO, CITY OF required to publish a Consumer Confidence Report?
- Yes. SAN DIEGO, CITY OF is a community water system, and federal rules (40 CFR 141 Subpart O) require every community water system to publish a Consumer Confidence Report each year.
When is SAN DIEGO, CITY OF’s next Consumer Confidence Report due?
- SAN DIEGO, CITY OF’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does SAN DIEGO, CITY OF have any open drinking water violations on record?
- As of August 1, 2026, EPA's federal records show no open violations for SAN DIEGO, CITY OF.
What is a Consumer Confidence Report?
- A Consumer Confidence Report (CCR) is the annual drinking water quality report that community water systems must provide to the people they serve. It lists the contaminants detected in the system’s water during the year, where the water comes from, and how the results compare with federal limits. EPA’s revised CCR rule takes effect January 1, 2027, and the first reports in the new format are due July 1, 2027.
Contact
GUERREIRO, JUAN
858-292-6436
SAN DIEGO, CA 92123