Lehigh County, PA

ZIP 18031

In ZIP 18031, 6 of the 12 things we check have at least one part graded D or F.

• Drinking water: Lca Arcadia West Division meets every EPA legal limit; 10 contaminants are above health goals, led by bromodichloromethane at 244× California’s Public Health Goal.
• Nearest Superfund site: Dorney Road Landfill, 2.4 miles away (3 within 10 miles).
• Largest share of modeled toxic air from industry: Carpenter Technology Corp (56%), mostly chromium compounds.
• Fine particles (PM2.5) average 7.8 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 91,749 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 18031

• Superfund sites nearbyC to F
• Factories and industrial sitesD to F
• Oil and gas wellsA
• Parks and nature nearbyC
• Air qualityC
• Drinking water qualityB to C
• Pesticide useD
• Neighborhood health statusA to D
• Past wildfire impactsA
• Past flood impactsC to D
• Noise levelsA to B
• Radiation signalsD to F

Based on 4 census tracts · compiled October 25, 2026 · how each grade works and its sources

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