Maricopa County, AZ

ZIP 85379

In ZIP 85379, 6 of the 12 things we check have at least one part graded D or F.

• Drinking water: Epcor - Agua Fria meets every EPA legal limit; 7 contaminants are above health goals, led by arsenic at 889× California’s Public Health Goal.
• Nearest Superfund site: Luke Air Force Base, 4.1 miles away (2 within 10 miles).
• Largest share of modeled toxic air from industry: Cornellcookson (60%), mostly chromium.
• Fine particles (PM2.5) average 8.9 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 1,094,686 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 85379

• Superfund sites nearbyA
• Factories and industrial sitesA to B
• Oil and gas wellsB to D
• Parks and nature nearbyC to D
• Air qualityD to F
• Drinking water qualityC to F
• Pesticide useC to F
• Neighborhood health statusA to C
• Past wildfire impactsA
• Past flood impactsA
• Noise levelsA to B
• Radiation signalsD

Based on 8 census tracts · compiled October 25, 2026 · how each grade works and its sources

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