Allendale County, SC

ZIP 29810

In ZIP 29810, 4 of the 12 things we check have at least one part graded D or F.

• Drinking water: Allendale Industrial Park (Sc0320002) meets every EPA legal limit; 6 contaminants are above health goals, led by chloroform at 7.5× California’s Public Health Goal.
• Nearest Superfund site: Helena Chemical Co. Landfill, 4.8 miles away.
• Largest share of modeled toxic air from industry: Befesa Zinc US Inc. (53%), mostly cadmium compounds.
• Fine particles (PM2.5) average 6.8 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 118,056 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 29810

• Superfund sites nearbyD to F
• Factories and industrial sitesA
• Oil and gas wellsA
• Parks and nature nearbyB to C
• Air qualityA to B
• Drinking water qualityB
• Pesticide useF
• Neighborhood health statusF
• Past wildfire impactsA
• Past flood impactsB to F
• Noise levelsA
• Radiation signalsA to C

Based on 3 census tracts · compiled October 25, 2026 · how each grade works and its sources

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