What's in COLSTRIP CITY OF's water?
COLSTRIP CITY OF had a health-based violation within the last five years. The required corrective action was reported, but it happened recently enough to matter. It serves 2,350 people through 913 service connections.
COLSTRIP CITY OF's record against the rest of the country
56 total violations and 2 health-based ones put COLSTRIP CITY OF at the 54th percentile nationally for violation burden, rank 5,889 of 12,903.
Against the MT average
COLSTRIP CITY 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
COLSTRIP CITY OF's most recent violation on record is dated 2024-01-07, with the most recent health-based one dated 2024-01-07. Last reported to EPA: 06/29/2026.
The concern categories on record
COLSTRIP 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
- Disinfection byproducts - flagged from: TTHM
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 COLSTRIP CITY OF's record does not cover
This is what COLSTRIP CITY OF reported to its state primacy agency and EPA under the Safe Drinking Water Act - real regulatory record, not a lab test of your specific tap. This record - 2 health-based violations on file for COLSTRIP CITY OF - 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.