Maricopa County, AZ

ZIP 85034

In ZIP 85034, 10 of the 12 things we check have at least one part graded D or F.

• Drinking water: Tempe City Of has 2 contaminants at or over an EPA legal limit; 24 contaminants are above health goals, led by pfos at 24× California’s Public Health Goal.
• Nearest Superfund site: Motorola, Inc. (52nd Street Plant), 2.3 miles away (3 within 10 miles).
• Largest share of modeled toxic air from industry: Chemresearch Co. Inc. (47%), mostly chromium compounds.
• Fine particles (PM2.5) average 9.9 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 85034

• Superfund sites nearbyF
• Factories and industrial sitesD to F
• Oil and gas wellsC to D
• Parks and nature nearbyD to F
• Air qualityF
• Drinking water qualityD to F
• Pesticide useC to F
• Neighborhood health statusB to F
• Past wildfire impactsA
• Past flood impactsA
• Noise levelsD to F
• Radiation signalsC to D

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

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