Butler County, PA

ZIP 16024

In ZIP 16024, 7 of the 12 things we check have at least one part graded D or F.

• Drinking water: Mars Borough Water Works has 1 contaminant at or over an EPA legal limit; 11 contaminants are above health goals, led by pfos at 7.6× 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: Ati Precision Finishing LLC - Monaca (24%), mostly chromium compounds.
• Fine particles (PM2.5) average 8.0 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 16024

• Superfund sites nearbyA
• Factories and industrial sitesD
• Oil and gas wellsF
• Parks and nature nearbyC
• Air qualityD
• Drinking water qualityD to F
• Pesticide useD
• Neighborhood health statusC
• Past wildfire impactsA
• Past flood impactsF
• Noise levelsA
• Radiation signalsF

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

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