Water Quality: Belgrade, MT
13 water systems • 17,300 people served
Some ConcernsWater Quality Summary
Belgrade is served by 13 public water systems with a combined service population of 17,300 people, and has 363 EPA Safe Drinking Water Act violations on record. Critically, 3 of those are health-based violations, meaning one or more contaminants were detected above EPA-established safe levels — a serious public health concern. Belgrade's violation count is 247% above the national average for Montana. Contaminants associated with violations include Chlorine Dioxide, E. coli, Gross Alpha.
Contaminants Found
Can cause anemia in infants and young children; may cause nervous system effects at high levels.
Common source: Water treatment disinfectant used to control taste, odor, and microorganisms
EPA limit: 0.8 mg/L
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)
Alpha-emitting radioactive particles increase cancer risk, particularly from bone and other internal cancers.
Common source: Natural uranium and radium in geological formations
EPA limit: 15 pCi/L (excluding radon and uranium)
Water Systems Serving Belgrade
| System Name | PWSID | Source | Population | Violations |
|---|---|---|---|---|
| BELGRADE CITY OF | MT0000136 | Groundwater | 10,460 | 7 |
| RIVER ROCK COUNTY WATER AND SEWER DIST | MT0004082 | Groundwater | 4,200 | 62 |
| VALLEY GROVE SUBDIVISION | MT0003780 | Groundwater | 825 | 20 |
| BAXTER CREEK NO 2 HOA | MT0003323 | Groundwater | 450 | 65 |
| MT MOONLIGHT BASIN | MT0004023 | Groundwater | 355 | 0 |
| LEXLEY ACRES MOBILE HOME PARK | MT0000461 | Groundwater | 250 | 10 |
| SPRINGVALE SUBDIVISION | MT0001823 | Groundwater | 150 | 4 |
| COBBLESTONE SUBDIVISION | MT0004572 | Groundwater | 150 | 5 |
| AVALON SUBDIVISION | MT0004802 | Groundwater | 135 | 25 |
| COUNTRY HAVEN ESTATES WHISPERING PINES | MT0004376 | Groundwater | 100 | 115 |
| STANS GARDEN | MT0004899 | Groundwater | 100 | 16 |
| BRIDGER BASE WATER SYSTEM | MT0004931 | Groundwater | 75 | 27 |
| ANTLER RIDGE HOMEOWNERS ASSOCIATION | MT0004202 | Groundwater | 50 | 7 |
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.