Darlington County, SC

ZIP 29540

In ZIP 29540, 4 of the 12 things we check have at least one part graded D or F.

• Drinking water: Florence City Of (Sc2110001) has 5 contaminants at or over an EPA legal limit; 17 contaminants are above health goals, led by pfos at 5.6× California’s Public Health Goal.
• Nearest Superfund site: Galey and Lord Plant, 6.1 miles away.
• Largest share of modeled toxic air from industry: Domtar Paper Co (24%), mostly formaldehyde.
• Fine particles (PM2.5) average 6.5 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 278,673 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 29540

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

Based on 4 census tracts · compiled September 10, 2026 · how each grade works and its sources

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