Lee County, IA

ZIP 52658

In ZIP 52658, 7 of the 12 things we check have at least one part graded D or F.

• Drinking water: Nauvoo meets every EPA legal limit; 15 contaminants are above health goals, led by pfos at 2.9× California’s Public Health Goal.
• Nearest Superfund site: Iowa Army Ammunition Plant, 1.6 miles away.
• Largest share of modeled toxic air from industry: Iowa Fertilizer Co (48%), mostly formaldehyde.
• Fine particles (PM2.5) average 7.1 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 52658

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

Based on 3 census tracts · compiled September 10, 2026 · how each grade works and its sources

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