Nevada County, AR

ZIP 71857

In ZIP 71857, 3 of the 12 things we check have at least one part graded D or F.

• Drinking water: Ozan Creek Water System meets every EPA legal limit; 7 contaminants are above health goals, led by lead at 120× California’s Public Health Goal.
• Nearest Superfund site: Ouachita Nevada Wood Treater, 9.6 miles away.
• Largest share of modeled toxic air from industry: Lanxess - Central (57%), mostly hydrazine.
• Fine particles (PM2.5) average 6.9 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 14,749 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 71857

• Superfund sites nearbyA to C
• Factories and industrial sitesA to B
• Oil and gas wellsA
• Parks and nature nearbyC
• Air qualityB
• Drinking water qualityA to F
• Pesticide useD to F
• Neighborhood health statusD to F
• Past wildfire impactsA
• Past flood impactsA
• Noise levelsA
• Radiation signalsA to B

Based on 5 census tracts · compiled October 25, 2026 · how each grade works and its sources

Loading the full report, with every source…