Charleston County, SC
ZIP 29418
In ZIP 29418, 8 of the 12 things we check have at least one part graded D or F.
- Drinking water: Dcws Ashley Phosphate (Sc1820008) has 2 contaminants at or over an EPA legal limit; 10 contaminants are above health goals, led by pfoa at 800× California’s Public Health Goal.
- Nearest Superfund site: Macalloy Corporation, 5.8 miles away (3 within 10 miles).
- Largest share of modeled toxic air from industry: Mercedes-Benz Vans LLC (48%), mostly polycyclic aromatic compounds.
- Fine particles (PM2.5) average 8.0 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
- About 80,803 kg of agricultural pesticides are applied in the county each year.
Grades for ZIP 29418
- Superfund sites nearbyA to D
- Factories and industrial sitesD to F
- Oil and gas wellsA
- Parks and nature nearbyB to D
- Air qualityB to D
- Drinking water qualityB to F
- Pesticide useC to F
- Neighborhood health statusA to D
- Past wildfire impactsA
- Past flood impactsC
- Noise levelsA to D
- Radiation signalsA to C
Based on 7 census tracts · compiled October 25, 2026 · how each grade works and its sources
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