Washington County, AR

ZIP 72730

In ZIP 72730, 4 of the 12 things we check have at least one part graded D or F.

• Drinking water: Prairie Grove Waterworks meets every EPA legal limit; 8 contaminants are above health goals, led by trichloroacetic acid at 182× 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: Marshalltown Co (98%), mostly chromium.
• Fine particles (PM2.5) average 8.3 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 32,492 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 72730

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

Based on 4 census tracts · compiled October 25, 2026 · how each grade works and its sources

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