Patillas Municipio, PR

ZIP 00723

In ZIP 00723, 1 of the 12 things we check have at least one part graded D or F.

• Nearest Superfund site: Maunabo Area Ground Water Contamination, 3.9 miles away.
• Largest share of modeled toxic air from industry: Steri-Tech Inc. (76%), mostly ethylene oxide.
• Fine particles (PM2.5) average 6.8 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.

Grades for ZIP 00723

• Superfund sites nearbyC to D
• Factories and industrial sitesB
• Oil and gas wellsA
• Air qualityA to B
• Past wildfire impactsA
• Past flood impactsC

Based on 6 census tracts · compiled September 10, 2026 · how each grade works and its sources

Loading the full report, with every source…