Martin County, FL

ZIP 34990

In ZIP 34990, 7 of the 12 things we check have at least one part graded D or F.

• Drinking water: Stuart, City Of - Water Plant has 3 contaminants at or over an EPA legal limit; 20 contaminants are above health goals, led by pfhxs at 24× California Notification Level.
• Nearest Superfund site: Florida Steel Corp., 3.3 miles away.
• Largest share of modeled toxic air from industry: Turbocombustor Technology Inc. (100%), mostly nickel.
• Fine particles (PM2.5) average 7.3 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 2,652,498 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 34990

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

Based on 9 census tracts · compiled September 10, 2026 · how each grade works and its sources

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