Columbus County, NC

ZIP 28423

In ZIP 28423, 4 of the 12 things we check have at least one part graded D or F.

• Drinking water: Lake Waccamaw, Town Of meets every EPA legal limit; 5 contaminants are above health goals, led by lead at 137× California’s Public Health Goal.
• Nearest Superfund site: Wright Chemical Corporation, 3.5 miles away (2 within 10 miles).
• Largest share of modeled toxic air from industry: International Paper Riegelwood Mill (59%), mostly chromium compounds.
• Fine particles (PM2.5) average 6.3 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 312,817 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 28423

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

Based on 5 census tracts · compiled October 25, 2026 · how each grade works and its sources

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