St. Clair County, IL

ZIP 62226

In ZIP 62226, 7 of the 12 things we check have at least one part graded D or F.

• Drinking water: Fsh Water Commission meets every EPA legal limit; 7 contaminants are above health goals, led by bromodichloromethane at 160× California’s Public Health Goal.
• Nearest Superfund site: Old American Zinc Plant, 7.5 miles away (3 within 10 miles).
• Largest share of modeled toxic air from industry: Wood River Refinery (34%), mostly chromium compounds.
• Fine particles (PM2.5) average 8.7 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 324,443 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 62226

• Superfund sites nearbyA to D
• Factories and industrial sitesA to B
• Oil and gas wellsD to F
• Parks and nature nearbyC
• Air qualityC to F
• Drinking water qualityC
• Pesticide useD to F
• Neighborhood health statusB to F
• Past wildfire impactsA
• Past flood impactsA
• Noise levelsA to D
• Radiation signalsC to D

Based on 12 census tracts · compiled October 25, 2026 · how each grade works and its sources

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