Bonneville County, ID

ZIP 83120

In ZIP 83120, 4 of the 12 things we check have at least one part graded D or F.

• Drinking water: Trail Ridge Water System meets every EPA legal limit; 2 contaminants are above health goals, led by lead at 14× California’s Public Health Goal.
• Nearest Superfund site: Kerr-Mcgee Chemical Corp. (soda Springs Plant), 5.0 miles away (2 within 10 miles).
• Largest share of modeled toxic air from industry: P4 Production LLC (100%), mostly chromium compounds.
• Fine particles (PM2.5) average 4.4 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 23,108 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 83120

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

Based on 4 census tracts · compiled September 10, 2026 · how each grade works and its sources

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