Johnson County, AR

ZIP 72830

In ZIP 72830, 6 of the 12 things we check have at least one part graded D or F.

• Drinking water: Scranton Waterworks meets every EPA legal limit; 7 contaminants are above health goals, led by trichloroacetic acid at 188× 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: Greenville Tube Co LLC (99%), mostly 1-bromopropane.
• Fine particles (PM2.5) average 7.0 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 18,243 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 72830

• Superfund sites nearbyA
• Factories and industrial sitesA to D
• Oil and gas wellsD
• Parks and nature nearbyB to C
• Air qualityA to B
• Drinking water qualityC to D
• Pesticide useC to F
• Neighborhood health statusD to F
• Past wildfire impactsA
• Past flood impactsA
• Noise levelsA to D
• Radiation signalsB

Based on 6 census tracts · compiled October 25, 2026 · how each grade works and its sources

Loading the full report, with every source…