Charleston County, SC

ZIP 29404

In ZIP 29404, 5 of the 12 things we check have at least one part graded D or F.

• Drinking water: Summerville Cpw (Sc1810003) has 2 contaminants at or over an EPA legal limit; 11 contaminants are above health goals, led by pfos at 6.7× California’s Public Health Goal.
• Nearest Superfund site: Macalloy Corporation, 7.1 miles away (2 within 10 miles).
• Largest share of modeled toxic air from industry: Lanxess Corp (28%), mostly ethylene oxide.
• Fine particles (PM2.5) average 7.4 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 29404

• Superfund sites nearbyA to C
• Factories and industrial sitesD
• Oil and gas wellsA
• Parks and nature nearbyD
• Air qualityC
• Drinking water qualityF
• Pesticide useF
• Neighborhood health statusA to C
• Past wildfire impactsA
• Past flood impactsC
• Noise levelsA to F
• Radiation signalsC

Based on 2 census tracts · compiled September 10, 2026 · how each grade works and its sources

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