WEST YELLOWSTONE TOWN OF: EPA violation history, explained
WEST YELLOWSTONE TOWN OF has a health-based violation on record, but none in the last five years - an older issue, not necessarily a current one. It serves 9,899 people through 628 service connections.
Ranked against every other system in this dataset
WEST YELLOWSTONE TOWN OF has 89 violations on record in total, 2 of thems health-based - ranking it 5,790th of 12,903 systems by violation count, the 55th percentile nationally.
Against the MT average
WEST YELLOWSTONE TOWN OF's 2 health-based violations sit within the MT average of 6.7, across 59 systems statewide. The clean-record guide covers what a comparison like this can hide.
Most recent violation on record
WEST YELLOWSTONE TOWN OF's most recent violation on record is dated 2021-04-08, with the most recent health-based one dated 2017-05-10. Last reported to EPA: 06/29/2026.
The concern categories on record
WEST YELLOWSTONE TOWN OF'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); Revised Total Coliform 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 WEST YELLOWSTONE TOWN OF's record does not cover
WEST YELLOWSTONE TOWN OF'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 WEST YELLOWSTONE TOWN OF's customers' taps is household plumbing, invisible to a system-level record ranked 5,790th of 12,903 by violation count. The guide to what this data misses covers that gap.