Washington County, OH

ZIP 45786

In ZIP 45786, 7 of the 12 things we check have at least one part graded D or F.

• Drinking water: Tri-County Rural W And S District has 1 contaminant at or over an EPA legal limit; 11 contaminants are above health goals, led by pfoa at 1,286× California’s Public Health Goal.
• Nearest Superfund site: Van Dale Junkyard, 6.0 miles away.
• Largest share of modeled toxic air from industry: Dupont Washington Works (19%), mostly formaldehyde.
• Fine particles (PM2.5) average 7.4 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 44,902 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 45786

• Superfund sites nearbyA to D
• Factories and industrial sitesA to B
• Oil and gas wellsF
• Parks and nature nearbyB to C
• Air qualityC
• Drinking water qualityC to F
• Pesticide useF
• Neighborhood health statusF
• Past wildfire impactsA
• Past flood impactsA
• Noise levelsA to D
• Radiation signalsC to D

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

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