Dorchester County, SC
ZIP 29448
In ZIP 29448, 4 of the 12 things we check have at least one part graded D or F.
- Drinking water: Dcws Conoflow (Sc1820007) meets every EPA legal limit; 7 contaminants are above health goals, led by bromodichloromethane at 150× California’s Public Health Goal.
- Closer to Superfund sites than 0% of U.S. neighborhoods, with no listed site within 10 miles of its center.
- Largest share of modeled toxic air from industry: Holcim (US) Inc Holly Hill Plant (50%), mostly formaldehyde.
- Fine particles (PM2.5) average 6.4 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
- About 80,803 kg of agricultural pesticides are applied in the county each year.
Grades for ZIP 29448
- Superfund sites nearbyA
- Factories and industrial sitesB
- Oil and gas wellsA
- Parks and nature nearbyB to C
- Air qualityA
- Drinking water qualityB to C
- Pesticide useD
- Neighborhood health statusD to F
- Past wildfire impactsA
- Past flood impactsC to D
- Noise levelsA to D
- Radiation signalsA
Based on 2 census tracts · compiled October 25, 2026 · how each grade works and its sources
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Other ZIP codes in Dorchester County
All of Dorchester County · All of South Carolina · How grades work