Water Quality: Great Falls, MT
18 water systems • 65,624 people served
Multiple Health ViolationsWater Quality Summary
Great Falls has 19 health-based violations on record, meaning one or more contaminants were found above EPA-established safe levels. Contaminants involved: Barium, Chlorine Dioxide, Disinfection Byproducts, E. coli, Total Haloacetic Acids (HAA5). In total, 739 violations are on record for 18 water systems serving 65,624 people.
Contaminants Found
Water Systems Serving Great Falls
| System Name | PWSID | Source | Population | Violations |
|---|---|---|---|---|
| GREAT FALLS CITY OF | MT0000525 | Surface Water | 60,000 | 5 |
| SUN PRAIRIE VILLAGE COUNTY | MT0000521 | Groundwater | 1,800 | 56 |
| PRAIRIE WATER COMPANY | MT0003539 | Surface Water | 1,000 | 34 |
| GORE HILL COUNTY WATER DIST | MT0000232 | Groundwater | 500 | 101 |
| HOMESTEAD ACRES COUNTY WATER AND SEWER | MT0000526 | Groundwater | 500 | 16 |
| HIGHWOOD MOBILE HOME PARK | MT0004681 | Surface Water | 400 | 6 |
| SUN PRAIRIE WATER DISTRICT | MT0000571 | Groundwater | 350 | 16 |
| GREAT FALLS RV PARK | MT0000027 | Surface Water | 274 | 0 |
| SOUTH WIND WATER AND SEWER DISTRICT | MT0000025 | Groundwater | 200 | 79 |
| PLEASANT PARK COMMUNITY INC | MT0000028 | Groundwater | 125 | 230 |
| BIG BEND RANCH SUBDIVISION | MT0004261 | Groundwater | 100 | 79 |
| SPRING TREE RIDGE | MT0004419 | Groundwater | 80 | 102 |
| GRASSLAND COLONY | MT0004832 | Groundwater | 80 | 0 |
| PARK GARDEN ESTATES | MT0000050 | Groundwater | 50 | 9 |
| WINDY ACRES WUA | MT0002806 | Groundwater | 50 | 4 |
| COBBLESTONE COURT | MT0004831 | Surface Water | 50 | 0 |
| BIG SKY MOBILE HOME PARK | MT0004683 | Surface Water | 40 | 2 |
| HIGH PLAINS H2O LLC | MT0005192 | Surface Water | 25 | 0 |
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.
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.