Silver Bow County, MT

ZIP 59748

In ZIP 59748, 2 of the 12 things we check have at least one part graded D or F.

• Drinking water: Butte Silverbow Water Dept has 1 contaminant at or over an EPA legal limit; 14 contaminants are above health goals, led by lead at 66× California’s Public Health Goal.
• Nearest Superfund site: Montana Pole and Treating, 8.5 miles away.
• Largest share of modeled toxic air from industry: Montana Resources LLC (96%), mostly cobalt compounds.
• Fine particles (PM2.5) average 5.5 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 1,726 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 59748

• Superfund sites nearbyF
• Factories and industrial sitesB
• Oil and gas wellsA
• Parks and nature nearbyB
• Air qualityA
• Drinking water qualityD to F
• Pesticide useC
• Neighborhood health statusC
• Past wildfire impactsA
• Past flood impactsA

Based on 1 census tract · compiled September 10, 2026 · how each grade works and its sources

Loading the full report, with every source…