DAVIS, CA · Yolo County
UC - DAVIS Water System
Consumer Confidence Report status
UC - DAVIS 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 UC - DAVIS.
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)
- CA5710009
- System type
- Community Water System
- Population served
- 49,616
- Service connections
- 4,656
- Ownership
- state government
- Water source
- surface water (rivers, lakes, or reservoirs)
UC - DAVIS is one of 376 community water systems in California in the 10,001 to 100,000 people size category, serving 49,616 people from surface water.
As of August 1, 2026, its federal record holds 2 entries between 2010 and 2022, all of which EPA lists as closed. Nothing has been added since 2022.
Of the 2, 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 Lead and Copper Rule and the Total Coliform Rules.
Violation history
Follow-up Or Routine LCR Tap M/R
—Lead and Copper Rule
October 1, 2022 – August 28, 2023
ResolvedMaximum Contaminant Level Violation, Monthly (TCR)
Health-basedColiform (TCR)
January 1, 2010 – January 31, 2010
Resolved
Resolved addressed and confirmed by the state
| Period | Violation | Contaminant / rule | Health-based | Status |
|---|---|---|---|---|
| October 1, 2022 – August 28, 2023 | Follow-up Or Routine LCR Tap M/R | Lead and Copper Rule | — | Resolved |
| January 1, 2010 – January 31, 2010 | Maximum Contaminant Level Violation, Monthly (TCR) | Coliform (TCR) | Health-based | Resolved |
Resolved addressed and confirmed by the state
Enforcement actions
No enforcement actions on record for this system.
Common questions
Is UC - DAVIS required to publish a Consumer Confidence Report?
- Yes. UC - DAVIS 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 UC - DAVIS’s next Consumer Confidence Report due?
- UC - DAVIS’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does UC - DAVIS have any open drinking water violations on record?
- As of August 1, 2026, EPA's federal records show no open violations for UC - DAVIS.
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
MOREJOHN, JOSHUA
530-754-5591
DAVIS, CA 95616