Williamson County, IL

ZIP 62915

In ZIP 62915, 4 of the 12 things we check have at least one part graded D or F.

• Drinking water: Blairsville Pwd meets every EPA legal limit; 6 contaminants are above health goals, led by bromodichloromethane at 121× California’s Public Health Goal.
• Nearest Superfund site: Sangamo Electric Dump/crab Orchard National Wildlife Refuge (usdoi), 9.5 miles away.
• Largest share of modeled toxic air from industry: Southern Illinois Power Cooperative (72%), mostly sulfuric acid.
• Fine particles (PM2.5) average 7.2 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 63,088 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 62915

• Superfund sites nearbyD
• Factories and industrial sitesA
• Oil and gas wellsD
• Parks and nature nearbyC
• Air qualityB
• Drinking water qualityC
• Pesticide useF
• Neighborhood health statusF
• Past wildfire impactsA
• Past flood impactsA
• Noise levelsA
• Radiation signalsC

Based on 1 census tract · compiled October 25, 2026 · how each grade works and its sources

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