BIG SKY COUNTY WATER AND SEWER DIST 363: EPA violation history, explained
BIG SKY COUNTY WATER AND SEWER DIST 363 has a health-based violation on record, but none in the last five years - an older issue, not necessarily a current one. 4,132 people get their water from it, across 2,599 connections.
How this compares nationally
Out of 12,903 systems in this dataset, BIG SKY COUNTY WATER AND SEWER DIST 363 ranks 3,498th by violation burden (73th percentile) - 33 violations total, 5 health-baseds.
Against the MT average
Among the 59 MT systems in this dataset, the average is 6.7 health-based violations - BIG SKY COUNTY WATER AND SEWER DIST 363's 5 is at or below that. The filter guide explains what a violation like this actually calls for.
Most recent violation on record
BIG SKY COUNTY WATER AND SEWER DIST 363's most recent violation on record is dated 2025-01-04, with the most recent health-based one dated 2012-01-01. Last reported to EPA: 06/29/2026.
The concern categories on record
BIG SKY COUNTY WATER AND SEWER DIST 363'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 BIG SKY COUNTY WATER AND SEWER DIST 363's record does not cover
Everything on this page is BIG SKY COUNTY WATER AND SEWER DIST 363's own reported record under the Safe Drinking Water Act - a regulatory filing, not a sample of your tap. Water quality can still change between the meter and the faucet - household plumbing sits outside what a record of 33 logged violations can see. The guide to what this data misses covers that gap.