Hardin County, KY

ZIP 40160

In ZIP 40160, 7 of the 12 things we check have at least one part graded D or F.

• Drinking water: Hardin Co. Water Dist #1/Ft. Knox meets every EPA legal limit; 4 contaminants are above health goals, led by arsenic at 375× California’s Public Health Goal.
• Nearest Superfund site: Distler Brickyard, 8.2 miles away (2 within 10 miles).
• Largest share of modeled toxic air from industry: Monument Chemical Kentucky LLC (86%), mostly ethylene oxide.
• Fine particles (PM2.5) average 7.3 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 99,835 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 40160

• Superfund sites nearbyA to D
• Factories and industrial sitesC to D
• Oil and gas wellsC to F
• Parks and nature nearbyB to C
• Air qualityB to C
• Drinking water qualityB to C
• Pesticide useD to F
• Neighborhood health statusA to F
• Past wildfire impactsA
• Past flood impactsA
• Noise levelsA to D
• Radiation signalsC to D

Based on 9 census tracts · compiled October 25, 2026 · how each grade works and its sources

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