Warren County, OH

ZIP 45040

In ZIP 45040, 8 of the 12 things we check have at least one part graded D or F.

• Drinking water: Western Water Company has 2 contaminants at or over an EPA legal limit; 12 contaminants are above health goals, led by pfos at 14× California’s Public Health Goal.
• Nearest Superfund site: Peters Cartridge Factory, 1.2 miles away (2 within 10 miles).
• Largest share of modeled toxic air from industry: Cincinnati Fan & Ventilator Co (39%), mostly chromium.
• Fine particles (PM2.5) average 9.2 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 93,781 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 45040

• Superfund sites nearbyD to F
• Factories and industrial sitesC to D
• Oil and gas wellsA to B
• Parks and nature nearbyD to F
• Air qualityD to F
• Drinking water qualityD to F
• Pesticide useD to F
• Neighborhood health statusA to C
• Past wildfire impactsA
• Past flood impactsA
• Noise levelsA to D
• Radiation signalsD

Based on 12 census tracts · compiled September 10, 2026 · how each grade works and its sources

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