Uc - Davis, CA Water Quality
Is Uc - Davis's water safe to drink?
Uc - Davis has a health-based violation on record, but none in the last five years - an older issue, not necessarily a current one. 49,616 people get their water from it, across 4,656 connections.
How this compares nationally
Out of 12,903 systems in this dataset, Uc - Davis ranks 5,522th by violation burden (57th percentile) - 5 violations total, 3 health-based.
How Uc - Davis compares within CA
Uc - Davis's 3 health-based violations sit within the CA average of 5.8, across 804 systems statewide. The filter guide explains what a violation like this actually calls for.
Most recent violation on record
The last violation EPA has on record for Uc - Davis is from 2022-01-10 (health-based: 2010-01-01). Last reported to EPA: 06/22/2026.
What kind of problem, specifically
Uc - Davis's flagged contaminants and rule violations, grouped by what they actually mean for a filter choice rather than left as EPA's raw code list:
- Microbial contamination / treatment technique - flagged from: Coliform (TCR)
The most severe category on record is microbial contamination / treatment technique, which points toward a microbial-class filter if you want to address it directly.
What this data is and is not
Uc - Davis's numbers here come from its own required reporting to EPA under the Safe Drinking Water Act, not from an independent test of your glass of water. This record - 3 health-based violations on file for Uc - Davis - stops at the meter and cannot see household plumbing on the other side of it. The guide to what this data misses covers that gap.