Powell County, MT

ZIP 59722

In ZIP 59722, 4 of the 12 things we check have at least one part graded D or F.

• Drinking water: Hunters Trailer Ct Anaconda meets every EPA legal limit; 2 contaminants are above health goals, led by arsenic at 188× California’s Public Health Goal.
• Closer to Superfund sites than 96% of U.S. neighborhoods, with no listed site within 10 miles of its center.
• Largest share of modeled toxic air from industry: Montana Resources LLC (91%), mostly cobalt compounds.
• Fine particles (PM2.5) average 5.6 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 18,612 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 59722

• Superfund sites nearbyF
• Factories and industrial sitesA
• Oil and gas wellsA
• Parks and nature nearbyB to C
• Air qualityA
• Drinking water qualityB to C
• Pesticide useD to F
• Neighborhood health statusC to F
• Past wildfire impactsA
• Past flood impactsA
• Noise levelsA
• Radiation signalsF

Based on 3 census tracts · compiled October 25, 2026 · how each grade works and its sources

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