Clinton County, IL

ZIP 62230

In ZIP 62230, 7 of the 12 things we check have at least one part graded D or F.

• Drinking water: S L M Water Commission meets every EPA legal limit; 13 contaminants are above health goals, led by lead at 42× California’s Public Health Goal.
• Nearest Superfund site: Circle Smelting Corp., 3.8 miles away.
• Largest share of modeled toxic air from industry: Prairie State Generating Co (59%), mostly chromium compounds.
• Fine particles (PM2.5) average 7.5 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 292,061 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 62230

• Superfund sites nearbyC to F
• Factories and industrial sitesB
• Oil and gas wellsF
• Parks and nature nearbyD
• Air qualityC
• Drinking water qualityC to F
• Pesticide useF
• Neighborhood health statusC
• Past wildfire impactsA
• Past flood impactsA
• Noise levelsA to D
• Radiation signalsD

Based on 4 census tracts · compiled September 10, 2026 · how each grade works and its sources

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