What's in UMATILLA, CITY OF's water?
UMATILLA, CITY OF has a health-based violation on record, but none in the last five years - an older issue, not necessarily a current one. Population served: 8,256, over 2,120 connections.
UMATILLA, CITY OF's record against the rest of the country
Out of 12,903 systems in this dataset, UMATILLA, CITY OF ranks 7,235th by violation burden (44th percentile) - 108 violations total, 1 health-based.
How UMATILLA, CITY OF compares within OR
Among the 160 OR systems in this dataset, the average is 6.0 health-based violations - UMATILLA, CITY OF's 1 is at or below that. 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 UMATILLA, CITY OF is from 2026-04-08 (health-based: 1995-01-06). Last reported to EPA: 06/26/2026.
What kind of problem, specifically
UMATILLA, CITY OF'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
Everything on this page is UMATILLA, CITY OF's own reported record under the Safe Drinking Water Act - a regulatory filing, not a sample of your tap. This record - 1 health-based violation on file for UMATILLA, CITY OF - 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.