McKinley County, NM

ZIP 87311

In ZIP 87311, 4 of the 12 things we check have at least one part graded D or F.

• Drinking water: Bread Springs-Chichiltah NTUA meets every EPA legal limit; 4 contaminants are above health goals, led by arsenic at 1,578× California’s Public Health Goal.
• Nearest Superfund site: United Nuclear Corp., 5.5 miles away.
• Fine particles (PM2.5) average 4.2 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 25,635 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 87311

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

Based on 7 census tracts · compiled October 25, 2026 · how each grade works and its sources

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