Warren County, KY

ZIP 42170

In ZIP 42170, 5 of the 12 things we check have at least one part graded D or F.

• Drinking water: Franklin Water Works meets every EPA legal limit; 9 contaminants are above health goals, led by arsenic at 268× California’s Public Health Goal.
• Nearest Superfund site: Caldwell Lace Leather Co., Inc., 9.9 miles away.
• Largest share of modeled toxic air from industry: Trace Die Cast Inc (68%), mostly chromium.
• Fine particles (PM2.5) average 7.2 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 111,064 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 42170

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

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

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