Allegheny County, PA

ZIP 15204

In ZIP 15204, 9 of the 12 things we check have at least one part graded D or F.

• Drinking water: Pittsburgh Water & Sewer Auth meets every EPA legal limit; 9 contaminants are above health goals, led by bromodichloromethane at 263× California’s Public Health Goal.
• Nearest Superfund site: Breslube-Penn, Inc., 5.0 miles away (2 within 10 miles).
• Largest share of modeled toxic air from industry: Union Electric Steel Corp (29%), mostly chromium.
• Fine particles (PM2.5) average 9.2 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 12,030 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 15204

• Superfund sites nearbyC to D
• Factories and industrial sitesC to D
• Oil and gas wellsF
• Parks and nature nearbyB to C
• Air qualityF
• Drinking water qualityC to F
• Pesticide useA to B
• Neighborhood health statusC to F
• Past wildfire impactsA
• Past flood impactsF
• Noise levelsA to D
• Radiation signalsD to F

Based on 5 census tracts · compiled October 25, 2026 · how each grade works and its sources

Loading the full report, with every source…