Will County, IL

ZIP 60431

In ZIP 60431, 9 of the 12 things we check have at least one part graded D or F.

• Drinking water: Plainfield has 2 contaminants at or over an EPA legal limit; 11 contaminants are above health goals, led by bromodichloromethane at 179× California’s Public Health Goal.
• Nearest Superfund site: Amoco Chemicals (joliet Landfill), 6.9 miles away.
• Largest share of modeled toxic air from industry: Exxonmobil Oil Corp Joliet Refinery (43%), mostly sulfuric acid.
• Fine particles (PM2.5) average 8.7 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 161,865 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 60431

• Superfund sites nearbyA to D
• Factories and industrial sitesC to F
• Oil and gas wellsA to B
• Parks and nature nearbyB to D
• Air qualityB to F
• Drinking water qualityA to F
• Pesticide useC to F
• Neighborhood health statusA to D
• Past wildfire impactsA
• Past flood impactsA
• Noise levelsA to D
• Radiation signalsD to F

Based on 11 census tracts · compiled October 25, 2026 · how each grade works and its sources

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