Is RONAN CITY OF's water safe to drink?
RONAN CITY 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 2,483 people through 1,004 service connections.
How this compares nationally
RONAN CITY OF has 85 violations on record in total, 1 of them health-based - ranking it 7,284th of 12,903 systems by violation count, the 44th percentile nationally.
Against the MT average
RONAN CITY OF's 1 health-based violations sit within the MT average of 6.7, across 59 systems statewide. The filter guide explains what a violation like this actually calls for.
Most recent violation on record
RONAN CITY OF's most recent violation on record is dated 2025-01-04, with the most recent health-based one dated 2013-03-12. Last reported to EPA: 06/29/2026.
The concern categories on record
RONAN CITY 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: Surface Water Treatment 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 RONAN CITY OF's record does not cover
Everything on this page is RONAN CITY OF'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 85 logged violations can see. The guide to what this data misses covers that gap.