VALLEY WATER SYSTEM: EPA violation history, explained

VALLEY WATER SYSTEM has a health-based violation on record, but none in the last five years - an older issue, not necessarily a current one. 2,259 people get their water from it, across 897 connections.

Ranked against every other system in this dataset

Out of 12,903 systems in this dataset, VALLEY WATER SYSTEM ranks 6,680th by violation burden (48th percentile) - 8 violations total, 2 health-baseds.

Against the WA average

VALLEY WATER SYSTEM's 2 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

VALLEY WATER SYSTEM's most recent violation on record is dated 2015-01-07, with the most recent health-based one dated 1993-01-07. Last reported to EPA: 06/19/2026.

The concern categories on record

VALLEY WATER SYSTEM'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 VALLEY WATER SYSTEM's record does not cover

This is what VALLEY WATER SYSTEM 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. Water quality can still change between the meter and the faucet - household plumbing sits outside what a record of 8 logged violations can see. The guide to what this data misses covers that gap.