Tud - Upper Basin Water System, CA Water Quality
What's in Tud - Upper Basin Water System's water?
Tud - Upper Basin Water System has a health-based violation on record, but none in the last five years - an older issue, not necessarily a current one. Population served: 13,280, over 4,991 connections.
How this compares nationally
2 total violations and 1 health-based ones put Tud - Upper Basin Water System at the 29th percentile nationally for violation burden, rank 9,107 of 12,903.
How Tud - Upper Basin Water System compares within CA
Tud - Upper Basin Water System's 1 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 Tud - Upper Basin Water System is from 2025-01-04 (health-based: 1996-01-12). Last reported to EPA: 06/22/2026.
What kind of problem, specifically
Tud - Upper Basin Water System'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: Surface Water Treatment Rule
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
This is what Tud - Upper Basin Water System reported to its state primacy agency and EPA under the Safe Drinking Water Act - real regulatory record, not a lab test of your specific tap. Water quality can still change between the meter and the faucet - household plumbing sits outside what a record of 2 logged violations can see. The guide to what this data misses covers that gap.