Maricopa County, AZ

ZIP 85309

In ZIP 85309, 7 of the 12 things we check have at least one part graded D or F.

• Drinking water: Usaf Luke Air Force Base has 2 contaminants at or over an EPA legal limit; 17 contaminants are above health goals, led by lead at 53× California’s Public Health Goal.
• Nearest Superfund site: Luke Air Force Base, 0.3 miles away (2 within 10 miles).
• Largest share of modeled toxic air from industry: Cornellcookson (63%), mostly chromium.
• Fine particles (PM2.5) average 8.0 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 85309

• Superfund sites nearbyD
• Factories and industrial sitesC
• Oil and gas wellsD
• Parks and nature nearbyF
• Air qualityD
• Drinking water qualityD to F
• Pesticide useC
• Neighborhood health statusA
• Past wildfire impactsA
• Past flood impactsA
• Noise levelsD
• Radiation signalsD

Based on 1 census tract · compiled September 10, 2026 · how each grade works and its sources

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