Is ROCKY BOY'S RURAL WATER's water safe to drink?
ROCKY BOY'S RURAL WATER has a health-based violation on record, but none in the last five years - an older issue, not necessarily a current one. 2,000 people get their water from it, across 477 connections.
ROCKY BOY'S RURAL WATER's record against the rest of the country
134 total violations and 15 health-based ones put ROCKY BOY'S RURAL WATER at the 91th percentile nationally for violation burden, rank 1,210 of 12,903.
How ROCKY BOY'S RURAL WATER compares within MT
ROCKY BOY'S RURAL WATER's 15 health-based violations sit above 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
The last violation EPA has on record for ROCKY BOY'S RURAL WATER is from 2025-01-10 (health-based: 2018-07-07). Last reported to EPA: 06/29/2026.
What kind of problem, specifically
ROCKY BOY'S RURAL 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); Groundwater 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 this data is and is not
ROCKY BOY'S RURAL 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 - 15 health-based violations on file for ROCKY BOY'S RURAL 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.