Apache County, AZ

ZIP 86535

In ZIP 86535, 3 of the 12 things we check have at least one part graded D or F.

• Drinking water: Dennehotso Boarding School BIA meets every EPA legal limit; 8 contaminants are above health goals, led by arsenic at 2,325× California’s Public Health Goal.
• Closer to Superfund sites than 0% of U.S. neighborhoods, with no listed site within 10 miles of its center.
• Fine particles (PM2.5) average 4.1 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 84,096 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 86535

• Superfund sites nearbyA
• Factories and industrial sitesA
• Oil and gas wellsC
• Parks and nature nearbyC
• Air qualityA
• Drinking water qualityD
• Pesticide useF
• Neighborhood health statusF
• Past wildfire impactsA
• Past flood impactsA

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

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