EAST PALO ALTO, CA · San Mateo County
CITY OF EAST PALO ALTO Water System
Consumer Confidence Report status
CITY OF EAST PALO ALTO 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 CITY OF EAST PALO ALTO.
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)
- CA4110024
- System type
- Community Water System
- Population served
- 29,519
- Service connections
- 3,906
- Ownership
- local government
- Water source
- surface water (rivers, lakes, or reservoirs)
CITY OF EAST PALO ALTO is one of 376 community water systems in California in the 10,001 to 100,000 people size category, serving 29,519 people from surface water.
As of August 1, 2026, its federal record holds 1 entry in 2005, all of which EPA lists as closed. Nothing has been added since 2005.
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 Stage 1 Disinfectants and Disinfection Byproducts Rule.
Violation history
Monitoring and Reporting (DBP)
—TTHM
October 1, 2005 – December 31, 2005
Resolved
Resolved addressed and confirmed by the state
| Period | Violation | Contaminant / rule | Health-based | Status |
|---|---|---|---|---|
| October 1, 2005 – December 31, 2005 | Monitoring and Reporting (DBP) | TTHM | — | Resolved |
Resolved addressed and confirmed by the state
Enforcement actions
- June 30, 2014State Compliance achieved5 linked violations
- July 22, 2006State Compliance achieved2 linked violations
- October 6, 2005State Administrative/Compliance Order without penalty issued3 linked violations
- October 30, 1996State Compliance achieved7 linked violations
Common questions
Is CITY OF EAST PALO ALTO required to publish a Consumer Confidence Report?
- Yes. CITY OF EAST PALO ALTO 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 CITY OF EAST PALO ALTO’s next Consumer Confidence Report due?
- CITY OF EAST PALO ALTO’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does CITY OF EAST PALO ALTO have any open drinking water violations on record?
- As of August 1, 2026, EPA's federal records show no open violations for CITY OF EAST PALO ALTO.
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
VINING, MATTHEW
650-229-3818
EAST PALO ALTO, CA 94303