Cook County, IL

ZIP 60428

In ZIP 60428, 4 of the 12 things we check have at least one part graded D or F.

• Drinking water: Posen meets every EPA legal limit; 7 contaminants are above health goals, led by bromodichloromethane at 173× California’s Public Health Goal.
• Nearest Superfund site: Lake Calumet Cluster, 7.2 miles away (3 within 10 miles).
• Largest share of modeled toxic air from industry: W R Grace & Co (40%), mostly cobalt compounds.
• Fine particles (PM2.5) average 9.3 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 16,702 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 60428

• Superfund sites nearbyA to C
• Factories and industrial sitesD to F
• Oil and gas wellsA
• Parks and nature nearbyC
• Air qualityF
• Drinking water qualityC
• Pesticide useA to B
• Neighborhood health statusA to F
• Past wildfire impactsA
• Past flood impactsA
• Noise levelsA to C
• Radiation signalsD

Based on 5 census tracts · compiled October 25, 2026 · how each grade works and its sources

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