Rio Arriba County, NM

ZIP 87532

In ZIP 87532, 7 of the 12 things we check have at least one part graded D or F.

• Drinking water: Alcalde Mdwca has 1 contaminant at or over an EPA legal limit; 8 contaminants are above health goals, led by arsenic at 5,153× California’s Public Health Goal.
• Nearest Superfund site: North Railroad Avenue Plume, 1.8 miles away.
• Largest share of modeled toxic air from industry: U.S. Department Of Energy Los Alamos National Laboratory (100%), mostly lead.
• Fine particles (PM2.5) average 6.0 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 18,783 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 87532

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

Based on 7 census tracts · compiled September 10, 2026 · how each grade works and its sources

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