Calloway County, KY

ZIP 42071

In ZIP 42071, 5 of the 12 things we check have at least one part graded D or F.

• Drinking water: Mayfield Electric & Water meets every EPA legal limit; 3 contaminants are above health goals, led by tetrachloroethylene at 33× California’s Public Health Goal.
• Nearest Superfund site: General Tire & Rubber Co. (mayfield Landfill), 8.1 miles away.
• Largest share of modeled toxic air from industry: Westlake Vinyls Inc (39%), mostly vinyl chloride.
• Fine particles (PM2.5) average 7.1 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 203,466 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 42071

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

Based on 12 census tracts · compiled October 25, 2026 · how each grade works and its sources

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