Durham County, NC

ZIP 27713

In ZIP 27713, 8 of the 12 things we check have at least one part graded D or F.

• Drinking water: Cary, Town Of meets every EPA legal limit; 15 contaminants are above health goals, led by lead at 41× California’s Public Health Goal.
• Nearest Superfund site: Koppers Co., Inc. (morrisville Plant), 3.2 miles away (2 within 10 miles).
• Largest share of modeled toxic air from industry: Scm Metal Products Inc (94%), mostly chromium compounds.
• Fine particles (PM2.5) average 8.3 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 11,900 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 27713

• Superfund sites nearbyA to D
• Factories and industrial sitesB to D
• Oil and gas wellsA
• Parks and nature nearbyB to F
• Air qualityC to D
• Drinking water qualityD to F
• Pesticide useB to D
• Neighborhood health statusA to D
• Past wildfire impactsA
• Past flood impactsB
• Noise levelsA to D
• Radiation signalsB to C

Based on 17 census tracts · compiled September 10, 2026 · how each grade works and its sources

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