Utah County, UT

ZIP 84004

In ZIP 84004, 3 of the 12 things we check have at least one part graded D or F.

• Drinking water: Cedar Hills Town Water System meets every EPA legal limit; 6 contaminants are above health goals, led by arsenic at 138× California’s Public Health Goal.
• Nearest Superfund site: Davenport and Flagstaff Smelters, 7.0 miles away.
• Largest share of modeled toxic air from industry: Kennecott Utah Copper Smelter & Refinery (48%), mostly arsenic compounds.
• Fine particles (PM2.5) average 7.1 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 150,057 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 84004

• Superfund sites nearbyA
• Factories and industrial sitesC to D
• Oil and gas wellsA
• Parks and nature nearbyA to B
• Air qualityA to B
• Drinking water qualityA to C
• Pesticide useC to D
• Neighborhood health statusA to B
• Past wildfire impactsA to C
• Past flood impactsA
• Noise levelsA
• Radiation signalsC to D

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

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