Union County, SC

ZIP 29379

In ZIP 29379, 6 of the 12 things we check have at least one part graded D or F.

• Drinking water: Santuck Hebron Water Co (Sc4420007) meets every EPA legal limit; 10 contaminants are above health goals, led by lead at 35× California’s Public Health Goal.
• Closer to Superfund sites than 54% of U.S. neighborhoods, with no listed site within 10 miles of its center.
• Largest share of modeled toxic air from industry: Basf Corp (74%), 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 4,597 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 29379

• Superfund sites nearbyA to C
• Factories and industrial sitesB to C
• Oil and gas wellsA
• Parks and nature nearbyB to D
• Air qualityA to B
• Drinking water qualityD to F
• Pesticide useC to F
• Neighborhood health statusD to F
• Past wildfire impactsA
• Past flood impactsC
• Noise levelsA to D
• Radiation signalsC to D

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

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