Is HORIZONS WEST's water safe to drink?
HORIZONS WEST has a health-based violation on record, but none in the last five years - an older issue, not necessarily a current one. 3,454 people get their water from it, across 1,027 connections.
How this compares nationally
Out of 12,903 systems in this dataset, HORIZONS WEST ranks 6,262th by violation burden (51th percentile) - 18 violations total, 2 health-baseds.
How HORIZONS WEST compares within WA
Among the 322 WA systems in this dataset, the average is 3.7 health-based violations - HORIZONS WEST's 2 is at or below that. The clean-record guide covers what a comparison like this can hide.
Most recent violation on record
The last violation EPA has on record for HORIZONS WEST is from 2020-01-07 (health-based: 2005-01-10). Last reported to EPA: 06/19/2026.
What kind of problem, specifically
HORIZONS WEST'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 this data is and is not
HORIZONS WEST's numbers here come from its own required reporting to EPA under the Safe Drinking Water Act, not from an independent test of your glass of water. Between the utility's meter and HORIZONS WEST's customers' taps is household plumbing, invisible to a system-level record ranked 6,262th of 12,903 by violation count. The guide to what this data misses covers that gap.