Charleston County, SC

ZIP 29466

In ZIP 29466, 3 of the 12 things we check have at least one part graded D or F.

• Drinking water: Isle Of Palms W/S Comm (Sc1010004) has 2 contaminants at or over an EPA legal limit; 12 contaminants are above health goals, led by pfos at 6.8× California’s Public Health Goal.
• Nearest Superfund site: Macalloy Corporation, 9.1 miles away (2 within 10 miles).
• Largest share of modeled toxic air from industry: Lanxess Corp (56%), mostly ethylene oxide.
• Fine particles (PM2.5) average 7.2 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 199,042 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 29466

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

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

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