SEATTLE PUBLIC UTILITIES: EPA violation history, explained
SEATTLE PUBLIC UTILITIES has a health-based violation on record, but none in the last five years - an older issue, not necessarily a current one. It serves 1,161,961 people through 195,204 service connections.
SEATTLE PUBLIC UTILITIES's record against the rest of the country
SEATTLE PUBLIC UTILITIES has 5 violations on record in total, 2 of thems health-based - ranking it 6,825th of 12,903 systems by violation count, the 47th percentile nationally.
Against the WA average
SEATTLE PUBLIC UTILITIES's 2 health-based violations sit within the WA average of 3.7, across 322 systems statewide. The clean-record guide covers what a comparison like this can hide.
Most recent violation on record
SEATTLE PUBLIC UTILITIES's most recent violation on record is dated 2015-01-12, with the most recent health-based one dated 2015-01-12. Last reported to EPA: 06/19/2026.
The concern categories on record
SEATTLE PUBLIC UTILITIES'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:
- Lead & copper - flagged from: Lead and Copper Rule
- Microbial contamination / treatment technique - flagged from: Surface Water Treatment Rule
The most severe category on record is lead & copper, which points toward a lead-class filter if you want to address it directly.
What SEATTLE PUBLIC UTILITIES's record does not cover
This is what SEATTLE PUBLIC UTILITIES 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. Between the utility's meter and SEATTLE PUBLIC UTILITIES's customers' taps is household plumbing, invisible to a system-level record ranked 6,825th of 12,903 by violation count. The guide to what this data misses covers that gap.