Navajo County, AZ

ZIP 85933

In ZIP 85933, 3 of the 12 things we check have at least one part graded D or F.

• Drinking water: Pinedale Estates Dwid has 1 contaminant at or over an EPA legal limit; 6 contaminants are above health goals, led by arsenic at 950× 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.
• Largest share of modeled toxic air from industry: Cholla Power Plant (100%), mostly chromium compounds.
• Fine particles (PM2.5) average 4.5 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 69,587 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 85933

• Superfund sites nearbyA
• Factories and industrial sitesA
• Oil and gas wellsA to B
• Parks and nature nearbyA to C
• Air qualityA
• Drinking water qualityA to F
• Pesticide useC
• Neighborhood health statusF
• Past wildfire impactsF
• Past flood impactsA
• Noise levelsA
• Radiation signalsB to C

Based on 3 census tracts · compiled October 25, 2026 · how each grade works and its sources

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