Beaufort County, SC

ZIP 29928

In ZIP 29928, 5 of the 12 things we check have at least one part graded D or F.

• Drinking water: Hilton Head Psd 1 (0720006) meets every EPA legal limit; 11 contaminants are above health goals, led by pfos at 2.6× California’s Public Health Goal.
• Nearest Superfund site: Parris Island Marine Corps Recruit Depot, 7.8 miles away.
• Largest share of modeled toxic air from industry: International Paper Co - Savannah Complex (38%), mostly formaldehyde.
• Fine particles (PM2.5) average 6.1 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 104,686 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 29928

• Superfund sites nearbyA to D
• Factories and industrial sitesA to D
• Oil and gas wellsA
• Parks and nature nearbyB to C
• Air qualityA
• Drinking water qualityB to C
• Pesticide useD to F
• Neighborhood health statusB to D
• Past wildfire impactsA
• Past flood impactsB
• Noise levelsA to D

Based on 8 census tracts · compiled October 25, 2026 · how each grade works and its sources

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