Clermont County, OH

ZIP 45103

In ZIP 45103, 7 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: Milford Contaminated Aquifer, 4.4 miles away.
• Largest share of modeled toxic air from industry: Hamilton Custom Made Security (68%), mostly chromium.
• Fine particles (PM2.5) average 8.6 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 67,657 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 45103

• Superfund sites nearbyA to D
• Factories and industrial sitesB to C
• Oil and gas wellsA to C
• Parks and nature nearbyB to D
• Air qualityC to D
• Drinking water qualityC to F
• Pesticide useD to F
• Neighborhood health statusC to F
• Past wildfire impactsA
• Past flood impactsA
• Noise levelsA to C
• Radiation signalsC to D

Based on 14 census tracts · compiled September 10, 2026 · how each grade works and its sources

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