Butler County, PA

ZIP 16040

In ZIP 16040, 6 of the 12 things we check have at least one part graded D or F.

• Drinking water: Marion Twp Wtp meets every EPA legal limit; 5 contaminants are above health goals, led by lead at 39× California’s Public Health Goal.
• Nearest Superfund site: Bruin Lagoon, 8.9 miles away (2 within 10 miles).
• Largest share of modeled toxic air from industry: Cleveland-Cliffs Steel Corp /Butler Works (19%), mostly chromium compounds.
• Fine particles (PM2.5) average 7.3 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 61,517 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 16040

• Superfund sites nearbyC
• Factories and industrial sitesB
• Oil and gas wellsF
• Parks and nature nearbyC
• Air qualityC
• Drinking water qualityF
• Pesticide useD
• Neighborhood health statusD
• Past wildfire impactsA
• Past flood impactsD
• Noise levelsA
• Radiation signalsF

Based on 1 census tract · compiled September 10, 2026 · how each grade works and its sources

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