Lehigh County, PA

ZIP 18104

In ZIP 18104, 9 of the 12 things we check have at least one part graded D or F.

• Drinking water: Lca Emmaus Consecutive Div has 2 contaminants at or over an EPA legal limit; 9 contaminants are above health goals, led by pfos at 41× California’s Public Health Goal.
• Nearest Superfund site: Rodale Manufacturing Co., Inc., 2.4 miles away (3 within 10 miles).
• Largest share of modeled toxic air from industry: B. Braun Medical Inc Manufacturing Div (45%), mostly ethylene oxide.
• Fine particles (PM2.5) average 8.9 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 18104

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

Based on 16 census tracts · compiled October 25, 2026 · how each grade works and its sources

Loading the full report, with every source…