Pima County, AZ

ZIP 85745

In ZIP 85745, 7 of the 12 things we check have at least one part graded D or F.

• Drinking water: Flowing Wells Irrigation District meets every EPA legal limit; 9 contaminants are above health goals, led by arsenic at 914× California’s Public Health Goal.
• Nearest Superfund site: Tucson International Airport Area, 5.5 miles away.
• Largest share of modeled toxic air from industry: Johns Manville (39%), mostly chromium.
• Fine particles (PM2.5) average 8.0 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 77,498 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 85745

• Superfund sites nearbyA to F
• Factories and industrial sitesB to D
• Oil and gas wellsA to C
• Parks and nature nearbyA to C
• Air qualityA to D
• Drinking water qualityB to F
• Pesticide useB
• Neighborhood health statusB to F
• Past wildfire impactsA to C
• Past flood impactsA
• Noise levelsA to D
• Radiation signalsD

Based on 15 census tracts · compiled October 25, 2026 · how each grade works and its sources

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