Lehigh County, PA

ZIP 18046

In ZIP 18046, 8 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; 14 contaminants are above health goals, led by pfos at 2.6× California’s Public Health Goal.
• Nearest Superfund site: Rodale Manufacturing Co., Inc., 2.9 miles away (3 within 10 miles).
• Largest share of modeled toxic air from industry: Carpenter Technology Corp (43%), mostly chromium compounds.
• 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 18046

• Superfund sites nearbyD to F
• Factories and industrial sitesF
• Oil and gas wellsA
• Parks and nature nearbyD
• Air qualityD
• Drinking water qualityF
• Pesticide useD to F
• Neighborhood health statusC
• Past wildfire impactsA
• Past flood impactsD
• Noise levelsA
• Radiation signalsD to F

Based on 2 census tracts · compiled September 10, 2026 · how each grade works and its sources

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