Dorado Municipio, PR

ZIP 00646

In ZIP 00646, 4 of the 12 things we check have at least one part graded D or F.

• Nearest Superfund site: Vega Alta Public Supply Wells, 2.6 miles away (3 within 10 miles).
• Largest share of modeled toxic air from industry: Super Asphalt Guaynabo Plant (56%), mostly polycyclic aromatic compounds.
• Fine particles (PM2.5) average 8.0 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.

Grades for ZIP 00646

• Superfund sites nearbyF
• Factories and industrial sitesB to D
• Oil and gas wellsA
• Air qualityB to D
• Past wildfire impactsA
• Past flood impactsC to D

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

Loading the full report, with every source…