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: Glendale City Of has 1 contaminant at or over an EPA legal limit; 16 contaminants are above health goals, led by lead at 14× 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: Cornellcookson (82%), 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 85305

• Superfund sites nearbyA to D
• Factories and industrial sitesD
• Oil and gas wellsB to D
• Parks and nature nearbyD to F
• Air qualityD to F
• Drinking water qualityD
• Pesticide useD to F
• Neighborhood health statusB
• Past wildfire impactsA
• Past flood impactsA
• Noise levelsA
• Radiation signalsD

Based on 4 census tracts · compiled September 10, 2026 · how each grade works and its sources

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