Maricopa County, AZ

ZIP 85305

In ZIP 85305, 8 of the 12 things we check have at least one part graded D or F.

• Drinking water: Phoenix City Of has 1 contaminant at or over an EPA legal limit; 10 contaminants are above health goals, led by arsenic at 1,346× California’s Public Health Goal.
• Nearest Superfund site: Luke Air Force Base, 5.5 miles away (2 within 10 miles).
• Largest share of modeled toxic air from industry: Parker Hannifin Corp (50%), mostly 1-bromopropane.
• 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 85305

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

Based on 4 census tracts · compiled October 25, 2026 · how each grade works and its sources

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