WASHINGTON PWS: EPA violation history, explained
WASHINGTON PWS had a health-based violation within the last five years. The required corrective action was reported, but it happened recently enough to matter. Population served: 14,068, over 7,361 connections.
WASHINGTON PWS's record against the rest of the country
WASHINGTON PWS has 19 violations on record in total, 13 of thems health-based - ranking it 1,503th of 12,903 systems by violation count, the 88th percentile nationally.
Against the MO average
WASHINGTON PWS's 13 health-based violations sit above the MO average of 6.1, across 327 systems statewide. The clean-record guide covers what a comparison like this can hide.
Most recent violation on record
WASHINGTON PWS's most recent violation on record is dated 2025-12-11, with the most recent health-based one dated 2024-09-07. Last reported to EPA: 06/16/2026.
The concern categories on record
WASHINGTON PWS'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); Groundwater 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 WASHINGTON PWS's record does not cover
This is what WASHINGTON PWS 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 WASHINGTON PWS's customers' taps is household plumbing, invisible to a system-level record ranked 1,503th of 12,903 by violation count. The guide to what this data misses covers that gap.