Union County, AR

ZIP 71749

In ZIP 71749, 6 of the 12 things we check have at least one part graded D or F.

• Drinking water: Darbonne Ws North meets every EPA legal limit; 9 contaminants are above health goals, led by lead at 12× California’s Public Health Goal.
• Nearest Superfund site: Popile, Inc., 6.1 miles away.
• Largest share of modeled toxic air from industry: Lanxess - Central (99%), mostly hydrazine.
• Fine particles (PM2.5) average 7.2 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 5,752 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 71749

• Superfund sites nearbyA to D
• Factories and industrial sitesB to D
• Oil and gas wellsC to F
• Parks and nature nearbyC
• Air qualityB
• Drinking water qualityC to D
• Pesticide useC to F
• Neighborhood health statusF
• Past wildfire impactsA
• Past flood impactsA
• Noise levelsA
• Radiation signalsB to C

Based on 4 census tracts · compiled September 10, 2026 · how each grade works and its sources

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