San Juan Municipio, PR

ZIP 00926

In ZIP 00926, 3 of the 12 things we check have at least one part graded D or F.

• Nearest Superfund site: Hormigas Ground Water Plume, 8.7 miles away.
• Largest share of modeled toxic air from industry: Super Asphalt Canovanas Plant (65%), mostly polycyclic aromatic compounds.
• Fine particles (PM2.5) average 8.1 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.

Grades for ZIP 00926

• Superfund sites nearbyA
• Factories and industrial sitesB to F
• Oil and gas wellsA
• Parks and nature nearbyB to C
• Air qualityB to D
• Past wildfire impactsA
• Past flood impactsC to D

Based on 35 census tracts · compiled October 25, 2026 · how each grade works and its sources

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