Somerset County, PA

ZIP 15424

In ZIP 15424, 4 of the 12 things we check have at least one part graded D or F.

• Drinking water: State Line Muni Svcs Auth meets every EPA legal limit; 8 contaminants are above health goals, led by monochloroacetic acid at 1× 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: Aaadcg Inc. Rockwood Div (69%), mostly chromium.
• Fine particles (PM2.5) average 7.4 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 64,971 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 15424

• Superfund sites nearbyA
• Factories and industrial sitesA to B
• Oil and gas wellsD
• Parks and nature nearbyB
• Air qualityB to C
• Drinking water qualityA to C
• Pesticide useC to D
• Neighborhood health statusF
• Past wildfire impactsA
• Past flood impactsC
• Noise levelsA to C
• Radiation signalsB to D

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

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