San Juan Municipio, PR

ZIP 00927

In ZIP 00927, 2 of the 12 things we check have at least one part graded D or F.

• Nearest Superfund site: Naval Security Group Activity, 8.9 miles away.
• Largest share of modeled toxic air from industry: Super Asphalt Canovanas Plant (56%), mostly polycyclic aromatic compounds.
• Fine particles (PM2.5) average 8.7 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.

Grades for ZIP 00927

• Superfund sites nearbyA
• Factories and industrial sitesD to F
• Oil and gas wellsA
• Parks and nature nearbyC
• Air qualityD to F
• Past wildfire impactsA
• Past flood impactsC

Based on 9 census tracts · compiled October 25, 2026 · how each grade works and its sources

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