McLean County, KY

ZIP 42371

In ZIP 42371, 6 of the 12 things we check have at least one part graded D or F.

• Drinking water: Webster Co Water District meets every EPA legal limit; 6 contaminants are above health goals, led by arsenic at 85× California’s Public Health Goal.
• Nearest Superfund site: Brantley Landfill, 6.1 miles away.
• Largest share of modeled toxic air from industry: Kaiser Aluminum Warrick (94%), mostly chromium compounds.
• Fine particles (PM2.5) average 7.5 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 121,746 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 42371

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

Based on 2 census tracts · compiled October 25, 2026 · how each grade works and its sources

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