Lee County, IA

ZIP 52639

In ZIP 52639, 5 of the 12 things we check have at least one part graded D or F.

• Drinking water: Nauvoo meets every EPA legal limit; 10 contaminants are above health goals, led by pfos at 1.9× California’s Public Health Goal.
• Nearest Superfund site: E.i. Du Pont De Nemours & Co., Inc. (county Road X23), 5.6 miles away.
• Largest share of modeled toxic air from industry: Climax Molybdenum Co (31%), mostly molybdenum trioxide.
• Fine particles (PM2.5) average 6.9 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 186,636 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 52639

• Superfund sites nearbyA to C
• Factories and industrial sitesB to D
• Oil and gas wellsA to C
• Parks and nature nearbyA to C
• Air qualityA to B
• Drinking water qualityB to C
• Pesticide useF
• Neighborhood health statusC to D
• Past wildfire impactsA
• Past flood impactsC
• Noise levelsA to D
• Radiation signalsD

Based on 3 census tracts · compiled October 25, 2026 · how each grade works and its sources

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