What's in SISTERS, CITY OF's water?
SISTERS, CITY OF has a health-based violation on record, but none in the last five years - an older issue, not necessarily a current one. It serves 3,778 people through 2,200 service connections.
SISTERS, CITY OF's record against the rest of the country
Out of 12,903 systems in this dataset, SISTERS, CITY OF ranks 7,229th by violation burden (44th percentile) - 114 violations total, 1 health-based.
How SISTERS, CITY OF compares within OR
OR's 160 covered systems average 6.0 health-based violations each; SISTERS, CITY OF carries 1, not more than typical for the state. The clean-record guide covers what a comparison like this can hide.
Most recent violation on record
The last violation EPA has on record for SISTERS, CITY OF is from 2015-01-08 (health-based: 1992-01-01). Last reported to EPA: 06/26/2026.
What kind of problem, specifically
SISTERS, 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: 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
Everything on this page is SISTERS, CITY OF's own reported record under the Safe Drinking Water Act - a regulatory filing, not a sample of your tap. Water quality can still change between the meter and the faucet - household plumbing sits outside what a record of 114 logged violations can see. The guide to what this data misses covers that gap.