Allegheny County, PA

ZIP 15204

In ZIP 15204, 10 of the 12 things we check have at least one part graded D or F.

• Drinking water: Robinson Twp Muni Auth meets every EPA legal limit; 11 contaminants are above health goals, led by lead at 45× 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 sitesD
• Oil and gas wellsF
• Parks and nature nearbyD
• Air qualityF
• Drinking water qualityD to F
• Pesticide useB to C
• Neighborhood health statusC to F
• Past wildfire impactsA
• Past flood impactsF
• Noise levelsA to D
• Radiation signalsD

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

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