Miami-Dade County, FL

ZIP 33031

In ZIP 33031, 6 of the 12 things we check have at least one part graded D or F.

• Drinking water: Mdwasa/Rex Utilities has 2 contaminants at or over an EPA legal limit; 28 contaminants are above health goals, led by pfos at 30× California’s Public Health Goal.
• Nearest Superfund site: Woodbury Chemical Co. (princeton Plant), 5.7 miles away (2 within 10 miles).
• Largest share of modeled toxic air from industry: Jl Audio Inc. (95%), mostly diisocyanates.
• Fine particles (PM2.5) average 7.3 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 855,356 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 33031

• Superfund sites nearbyC to D
• Factories and industrial sitesB
• Oil and gas wellsA
• Parks and nature nearbyB to D
• Air qualityA to C
• Drinking water qualityC to F
• Pesticide useD to F
• Neighborhood health statusB to C
• Past wildfire impactsA to F
• Past flood impactsB
• Noise levelsA to D
• Radiation signalsC

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

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