Montgomery County, OH

ZIP 45404

In ZIP 45404, 8 of the 12 things we check have at least one part graded D or F.

• Drinking water: Dayton Public Water System has 1 contaminant at or over an EPA legal limit; 12 contaminants are above health goals, led by pfoa at 329× California’s Public Health Goal.
• Nearest Superfund site: Valley Pike Vocs, 0.6 miles away (3 within 10 miles).
• Largest share of modeled toxic air from industry: Plating Technology Inc. Dayton Plant (29%), mostly nickel compounds.
• Fine particles (PM2.5) average 9.4 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 106,635 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 45404

• Superfund sites nearbyF
• Factories and industrial sitesF
• Oil and gas wellsB
• Parks and nature nearbyC
• Air qualityF
• Drinking water qualityC to F
• Pesticide useC to D
• Neighborhood health statusF
• Past wildfire impactsA
• Past flood impactsA
• Noise levelsA to D
• Radiation signalsD to F

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

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