San Juan County, NM

ZIP 87401

In ZIP 87401, 6 of the 12 things we check have at least one part graded D or F.

• Drinking water: White Rock-Lake Valley NTUA meets every EPA legal limit; 3 contaminants are above health goals, led by arsenic at 1,561× California’s Public Health Goal.
• Nearest Superfund site: Lee Acres Landfill (usdoi), 2.2 miles away.
• Largest share of modeled toxic air from industry: Four Corners Steam Electric Station (63%), 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 225,195 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 87401

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

Based on 18 census tracts · compiled October 25, 2026 · how each grade works and its sources

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