York County, SC

ZIP 29726

In ZIP 29726, 3 of the 12 things we check have at least one part graded D or F.

• Drinking water: Rock Hill City Of (Sc4610002) meets every EPA legal limit; 8 contaminants are above health goals, led by bromodichloromethane at 173× California’s Public Health Goal.
• Nearest Superfund site: Rock Hill Chemical Co., 7.8 miles away.
• Largest share of modeled toxic air from industry: Jim Myers & Sons Inc (69%), mostly chromium.
• Fine particles (PM2.5) average 6.6 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 46,422 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 29726

• Superfund sites nearbyA to C
• Factories and industrial sitesC to D
• Oil and gas wellsB
• Parks and nature nearbyC
• Air qualityA
• Drinking water qualityB to C
• Pesticide useD
• Neighborhood health statusB to C
• Past wildfire impactsA
• Past flood impactsC
• Noise levelsA
• Radiation signalsA to D

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

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