Prince William County, VA

ZIP 20181

In ZIP 20181, 5 of the 12 things we check have at least one part graded D or F.

• Drinking water: Pwcsa - East has 1 contaminant at or over an EPA legal limit; 9 contaminants are above health goals, led by pfoa at 586× California’s Public Health Goal.
• Nearest Superfund site: Marine Corps Combat Development Command, 2.2 miles away.
• Largest share of modeled toxic air from industry: Micron Technology Inc. (73%), mostly chlorine.
• Fine particles (PM2.5) average 7.9 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 114,427 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 20181

• Superfund sites nearbyA to F
• Factories and industrial sitesA
• Oil and gas wellsA
• Parks and nature nearbyB to C
• Air qualityB to D
• Drinking water qualityC to F
• Pesticide useB to D
• Neighborhood health statusB
• Past wildfire impactsA
• Past flood impactsA to C
• Noise levelsA
• Radiation signalsD to F

Based on 7 census tracts · compiled October 25, 2026 · how each grade works and its sources

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