Washington County, PA

ZIP 15423

In ZIP 15423, 6 of the 12 things we check have at least one part graded D or F.

• Drinking water: Pa-American Water-Brownsville meets every EPA legal limit; 13 contaminants are above health goals, led by lead at 43× California’s Public Health Goal.
• Closer to Superfund sites than 0% of U.S. neighborhoods, with no listed site within 10 miles of its center.
• Largest share of modeled toxic air from industry: Duraloy Technologies Inc (34%), mostly chromium.
• Fine particles (PM2.5) average 7.7 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 37,973 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 15423

• Superfund sites nearbyA
• Factories and industrial sitesB to C
• Oil and gas wellsF
• Parks and nature nearbyC
• Air qualityC
• Drinking water qualityD to F
• Pesticide useD
• Neighborhood health statusC to F
• Past wildfire impactsA
• Past flood impactsC to F
• Noise levelsA to C
• Radiation signalsD

Based on 5 census tracts · compiled September 10, 2026 · how each grade works and its sources

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