Tooele County, UT

ZIP 84029

In ZIP 84029, 6 of the 12 things we check have at least one part graded D or F.

• Drinking water: Silver Spur Ranchos meets every EPA legal limit; 3 contaminants are above health goals, led by arsenic at 438× California’s Public Health Goal.
• Nearest Superfund site: Tooele Army Depot (north Area), 5.2 miles away.
• Largest share of modeled toxic air from industry: US Magnesium LLC (61%), mostly chlorine.
• Fine particles (PM2.5) average 5.8 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 10,523 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 84029

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

Based on 6 census tracts · compiled September 10, 2026 · how each grade works and its sources

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