Miami County, OH

ZIP 45322

In ZIP 45322, 9 of the 12 things we check have at least one part graded D or F.

• Drinking water: Trotwood City Pws meets every EPA legal limit; 8 contaminants are above health goals, led by lead at 38× California’s Public Health Goal.
• Nearest Superfund site: Powell Road Landfill, 6.4 miles away (3 within 10 miles).
• Largest share of modeled toxic air from industry: Plating Technology Inc. Dayton Plant (55%), mostly nickel compounds.
• Fine particles (PM2.5) average 8.1 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 45322

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

Based on 9 census tracts · compiled September 10, 2026 · how each grade works and its sources

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