Lehigh County, PA

ZIP 18106

In ZIP 18106, 7 of the 12 things we check have at least one part graded D or F.

• Drinking water: Lca Wlsa Central Division meets every EPA legal limit; 12 contaminants are above health goals, led by pfos at 1.6× California’s Public Health Goal.
• Nearest Superfund site: Reeser's Landfill, 2.8 miles away (3 within 10 miles).
• Largest share of modeled toxic air from industry: Carpenter Technology Corp (43%), mostly ethylene oxide.
• Fine particles (PM2.5) average 8.6 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 18106

• Superfund sites nearbyD to F
• Factories and industrial sitesF
• Oil and gas wellsA
• Parks and nature nearbyC
• Air qualityC to D
• Drinking water qualityC
• Pesticide useC to D
• Neighborhood health statusB
• Past wildfire impactsA
• Past flood impactsD
• Noise levelsA to D
• Radiation signalsF

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

Loading the full report, with every source…