Utah County, UT

ZIP 84664

In ZIP 84664, 6 of the 12 things we check have at least one part graded D or F.

• Drinking water: Mapleton City meets every EPA legal limit; 4 contaminants are above health goals, led by arsenic at 300× California’s Public Health Goal.
• Closer to Superfund sites than 0% of U.S. neighborhoods, with no listed site within 10 miles of its center.
• Largest share of modeled toxic air from industry: Klune Industries Inc (99%), mostly chromium.
• Fine particles (PM2.5) average 6.8 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 84664

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

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

Loading the full report, with every source…