KING COUNTY WATER DISTRICT #49: EPA violation history, explained
KING COUNTY WATER DISTRICT #49 has a health-based violation on record, but none in the last five years - an older issue, not necessarily a current one. 23,492 people get their water from it, across 7,379 connections.
How this compares nationally
Out of 12,903 systems in this dataset, KING COUNTY WATER DISTRICT #49 ranks 8,435th by violation burden (35th percentile) - 7 violations total, 1 health-based.
Against the WA average
KING COUNTY WATER DISTRICT #49's 1 health-based violations sit within the WA average of 3.7, across 322 systems statewide. The filter guide explains what a violation like this actually calls for.
Most recent violation on record
KING COUNTY WATER DISTRICT #49's most recent violation on record is dated 2017-01-07, with the most recent health-based one dated 1992-01-02. Last reported to EPA: 06/19/2026.
The concern categories on record
KING COUNTY WATER DISTRICT #49'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 KING COUNTY WATER DISTRICT #49's record does not cover
This is what KING COUNTY WATER DISTRICT #49 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. This record - 1 health-based violation on file for KING COUNTY WATER DISTRICT #49 - 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.