Water Quality: Colstrip, MT
1 water system • 2,350 people served
Multiple Health ViolationsWater Quality Summary
Colstrip is served by 1 public water system with a combined service population of 2,350 people, and has 28 EPA Safe Drinking Water Act violations on record. Critically, 6 of those are health-based violations, meaning one or more contaminants were detected above EPA-established safe levels — a serious public health concern. Colstrip's violation count is 73% below the national average for Montana. Contaminants associated with violations include Fecal Coliform, TTHM.
Contaminants Found
Indicates direct fecal contamination; associated with diarrhea, cramps, nausea, and potential severe illness.
Common source: Human and animal fecal waste
EPA limit: Zero tolerance (any positive triggers violations)
Total trihalomethanes are linked to increased risk of bladder cancer and adverse reproductive outcomes.
Common source: Reaction of chlorine disinfectants with naturally occurring organic matter in water
EPA limit: 0.080 mg/L (80 ppb)
Water Systems Serving Colstrip
| System Name | PWSID | Source | Population | Violations |
|---|---|---|---|---|
| COLSTRIP CITY OF | MT0000180 | Surface Water | 2,350 | 28 |
Concerned About Your Water?
A home water filter can remove common contaminants. NSF-certified filters are tested against EPA standards.
Consider a reverse osmosis system for comprehensive filtration or a carbon filter for basic improvement.
Other Cities in Montana
Data Sources
Drinking water violation data from the EPA Safe Drinking Water Information System (SDWIS). Data includes all recorded violations for active community water systems.