York County, SC

ZIP 29704

In ZIP 29704, 6 of the 12 things we check have at least one part graded D or F.

• Drinking water: Cedar Valley Mhp (Sc4660009) meets every EPA legal limit; 3 contaminants are above health goals, led by lead at 307× California’s Public Health Goal.
• Nearest Superfund site: Leonard Chemical Co., Inc., 1.3 miles away (2 within 10 miles).
• Largest share of modeled toxic air from industry: Jim Myers & Sons Inc (67%), mostly chromium.
• Fine particles (PM2.5) average 7.3 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 21,738 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 29704

• Superfund sites nearbyD
• Factories and industrial sitesC to D
• Oil and gas wellsA
• Parks and nature nearbyC
• Air qualityB to C
• Drinking water qualityA to F
• Pesticide useD to F
• Neighborhood health statusC to D
• Past wildfire impactsA
• Past flood impactsC
• Noise levelsA to D
• Radiation signalsB to C

Based on 3 census tracts · compiled September 10, 2026 · how each grade works and its sources

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