Golden Valley County, MT

ZIP 59046

In ZIP 59046, 4 of the 12 things we check have at least one part graded D or F.

• Drinking water: Ryegate Town Of meets every EPA legal limit; 9 contaminants are above health goals, led by bromodichloromethane at 179× California’s Public Health Goal.
• Closer to Superfund sites than 0% of U.S. neighborhoods, with no listed site within 10 miles of its center.
• Largest share of modeled toxic air from industry: Exxonmobil Billings Refinery (56%), mostly benzene.
• Fine particles (PM2.5) average 5.3 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 33,278 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 59046

• Superfund sites nearbyA
• Factories and industrial sitesA
• Oil and gas wellsA to D
• Parks and nature nearbyB
• Air qualityA
• Drinking water qualityA to C
• Pesticide useF
• Neighborhood health statusF
• Noise levelsA
• Radiation signalsC to F

Based on 2 census tracts · compiled October 25, 2026 · how each grade works and its sources

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