SNOQUALMIE WATER: EPA violation history, explained
SNOQUALMIE WATER has a health-based violation on record, but none in the last five years - an older issue, not necessarily a current one. It serves 20,222 people through 5,386 service connections.
Ranked against every other system in this dataset
Out of 12,903 systems in this dataset, SNOQUALMIE WATER ranks 4,160th by violation burden (68th percentile) - 24 violations total, 4 health-baseds.
How SNOQUALMIE WATER compares within WA
Among the 322 WA systems in this dataset, the average is 3.7 health-based violations - SNOQUALMIE WATER's 4 is above that. The filter guide explains what a violation like this actually calls for.
Most recent violation on record
The last violation EPA has on record for SNOQUALMIE WATER is from 2016-01-07 (health-based: 2003-01-10). Last reported to EPA: 06/19/2026.
What kind of problem, specifically
SNOQUALMIE WATER'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
SNOQUALMIE WATER'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. This record - 4 health-based violations on file for SNOQUALMIE WATER - 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.