Water Quality: Havre, MT
5 water systems • 10,263 people served
Multiple Health ViolationsWater Quality Summary
Havre is served by 5 public water systems with a combined service population of 10,263 people, and has 102 EPA Safe Drinking Water Act violations on record. Critically, 10 of those are health-based violations, meaning one or more contaminants were detected above EPA-established safe levels — a serious public health concern. Havre's violation count is roughly in line with the national average for Montana. Contaminants associated with violations include Bromate, E. coli.
Contaminants Found
Probable human carcinogen that increases the risk of kidney and thyroid cancers.
Common source: Ozonation of bromide-containing water; used as flour improver
EPA limit: 0.010 mg/L (10 ppb)
Causes gastrointestinal illness; certain strains (e.g., O157:H7) can cause severe kidney failure and death.
Common source: Fecal contamination from humans or animals entering the water supply
EPA limit: Zero (no E. coli permitted in drinking water)
Water Systems Serving Havre
| System Name | PWSID | Source | Population | Violations |
|---|---|---|---|---|
| HAVRE CITY OF | MT0000524 | Surface Water | 9,921 | 28 |
| EAST END COLONY INC | MT0001780 | Groundwater | 100 | 34 |
| NORTH HAVRE COUNTY WATER DIST | MT0002988 | Surface Water | 90 | 8 |
| HILLDALE COLONY | MT0001774 | Surface Water | 79 | 22 |
| HARTLAND COLONY | MT0004072 | Groundwater | 73 | 10 |
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.