DrinkingWaterCheck

What's in UNION PUBLIC UTILITY DISTRICT's water?

UNION PUBLIC UTILITY DISTRICT has a health-based violation on record, but none in the last five years - an older issue, not necessarily a current one. Population served: 4,774, over 1,735 connections.

UNION PUBLIC UTILITY DISTRICT's record against the rest of the country

UNION PUBLIC UTILITY DISTRICT has 18 violations on record in total, 11 of thems health-based - ranking it 1,813th of 12,903 systems by violation count, the 86th percentile nationally.

Against the CA average

CA's 803 covered systems average 5.8 health-based violations each; UNION PUBLIC UTILITY DISTRICT carries 11, more than typical for the state. The filter guide explains what a violation like this actually calls for.

Most recent violation on record

UNION PUBLIC UTILITY DISTRICT's most recent violation on record is dated 2021-01-01, with the most recent health-based one dated 2021-01-01. Last reported to EPA: 06/22/2026.

The concern categories on record

UNION PUBLIC UTILITY DISTRICT'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:

The most severe category on record is disinfection byproducts, which points toward a carbon-class filter if you want to address it directly.

What UNION PUBLIC UTILITY DISTRICT's record does not cover

UNION PUBLIC UTILITY DISTRICT'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 - 11 health-based violations on file for UNION PUBLIC UTILITY DISTRICT - 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.