Colstrip, Montana Water Violations

2 water systems serve Colstrip, Montana, providing drinking water to an estimated 2,550 people. These systems have 6 health-based violations on record, meaning contaminant levels exceeded EPA maximum contaminant levels (MCLs) or required treatment standards were not met.

Select a water system below to see its full violation history, lead and copper testing results, and compliance status.

Water SystemPopulation ServedSourceViolationsHealth-Based
Colstrip City of 2,350 Surface Water 28 6
Western Energy Company 200 Groundwater 9 0