What's in PORTLAND WATER BUREAU's water?
PORTLAND WATER BUREAU has at least one health-based violation EPA's ECHO database still lists as unaddressed - the required fix has not been reported complete. Population served: 666,200, over 187,700 connections.
PORTLAND WATER BUREAU's record against the rest of the country
PORTLAND WATER BUREAU has 18 violations on record in total, 4 of thems health-based - ranking it 4,218th of 12,903 systems by violation count, the 67th percentile nationally.
How PORTLAND WATER BUREAU compares within OR
OR's 160 covered systems average 6.0 health-based violations each; PORTLAND WATER BUREAU carries 4, not more than typical for the state. 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 PORTLAND WATER BUREAU is from 2022-01-07 (health-based: 2018-06-12). Last reported to EPA: 06/26/2026.
What kind of problem, specifically
PORTLAND WATER BUREAU'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); Long Term 2 Enhanced 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 PORTLAND WATER BUREAU'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 18 logged violations can see. The guide to what this data misses covers that gap.