St. Clair County, IL

ZIP 62207

In ZIP 62207, 9 of the 12 things we check have at least one part graded D or F.

• Drinking water: Prairie Dupont Pwd meets every EPA legal limit; 7 contaminants are above health goals, led by bromodichloromethane at 65× California’s Public Health Goal.
• Nearest Superfund site: Sauget Area 1, 2.1 miles away (3 within 10 miles).
• Largest share of modeled toxic air from industry: Occidental Chemical Corp Sauget Plant (37%), mostly chlorine.
• Fine particles (PM2.5) average 9.0 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 62207

• Superfund sites nearbyD to F
• Factories and industrial sitesC to F
• Oil and gas wellsD to F
• Parks and nature nearbyB to D
• Air qualityD to F
• Drinking water qualityC
• Pesticide useD to F
• Neighborhood health statusC to F
• Past wildfire impactsA
• Past flood impactsA
• Noise levelsA to F
• Radiation signalsC to D

Based on 8 census tracts · compiled October 25, 2026 · how each grade works and its sources

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