Monongalia County, WV

ZIP 26505

In ZIP 26505, 10 of the 12 things we check have at least one part graded D or F.

• Drinking water: Masontown Water Works meets every EPA legal limit; 9 contaminants are above health goals, led by bromodichloromethane at 189× California’s Public Health Goal.
• Nearest Superfund site: Ordnance Works Disposal Areas, 4.3 miles away.
• Largest share of modeled toxic air from industry: Harrison Power Station (48%), mostly sulfuric acid.
• Fine particles (PM2.5) average 8.4 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 2,309 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 26505

• Superfund sites nearbyA
• Factories and industrial sitesC to D
• Oil and gas wellsD to F
• Parks and nature nearbyC to F
• Air qualityB to D
• Drinking water qualityC to D
• Pesticide useB to D
• Neighborhood health statusB to D
• Past wildfire impactsA
• Past flood impactsC to F
• Noise levelsA to D
• Radiation signalsC to D

Based on 17 census tracts · compiled September 10, 2026 · how each grade works and its sources

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