Charleston County, SC
ZIP 29412
In ZIP 29412, 5 of the 12 things we check have at least one part graded D or F.
- Drinking water: St John's Water (Sc1020002) has 2 contaminants at or over an EPA legal limit; 11 contaminants are above health goals, led by pfos at 7.2× California’s Public Health Goal.
- Nearest Superfund site: Koppers Co., Inc. (charleston Plant), 5.3 miles away (2 within 10 miles).
- Largest share of modeled toxic air from industry: Lanxess Corp (72%), mostly ethylene oxide.
- Fine particles (PM2.5) average 7.6 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 29412
- 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 useD to F
- Neighborhood health statusA to C
- Past wildfire impactsA
- Past flood impactsC
- Noise levelsA to D
Based on 9 census tracts · compiled September 10, 2026 · how each grade works and its sources
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