Lawrence County, PA

ZIP 16143

In ZIP 16143, 7 of the 12 things we check have at least one part graded D or F.

• Drinking water: Mahoning Township meets every EPA legal limit; 8 contaminants are above health goals, led by lead at 46× California’s Public Health Goal.
• Nearest Superfund site: Sharon Steel Corp (farrell Works Disposal Area), 3.7 miles away (3 within 10 miles).
• Largest share of modeled toxic air from industry: Vitro Meadville Flat Glass LLC (31%), mostly cobalt compounds.
• Fine particles (PM2.5) average 7.7 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 67,541 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 16143

• Superfund sites nearbyA to D
• Factories and industrial sitesC
• Oil and gas wellsF
• Parks and nature nearbyC
• Air qualityB to C
• Drinking water qualityC to F
• Pesticide useF
• Neighborhood health statusD
• Past wildfire impactsA
• Past flood impactsF
• Noise levelsA
• Radiation signalsD

Based on 3 census tracts · compiled September 10, 2026 · how each grade works and its sources

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