Charleston County, SC

ZIP 29438

In ZIP 29438, 2 of the 12 things we check have at least one part graded D or F.

• Drinking water: Edisto Beach Town Of (Sc1510006) meets every EPA legal limit; 9 contaminants are above health goals, led by trichloroacetic acid at 16× California’s Public Health Goal.
• Closer to Superfund sites than 0% of U.S. neighborhoods, with no listed site within 10 miles of its center.
• Largest share of modeled toxic air from industry: Balchem Corp (91%), mostly ethylene oxide.
• Fine particles (PM2.5) average 6.7 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 133,415 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 29438

• Superfund sites nearbyA
• Factories and industrial sitesB
• Oil and gas wellsA
• Parks and nature nearbyB
• Air qualityA to B
• Drinking water qualityB
• Pesticide useD
• Neighborhood health statusF
• Past wildfire impactsA
• Past flood impactsC
• Noise levelsA
• Radiation signalsA

Based on 2 census tracts · compiled October 25, 2026 · how each grade works and its sources

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