Ste. Genevieve County, MO

ZIP 63670

In ZIP 63670, 7 of the 12 things we check have at least one part graded D or F.

• Drinking water: Lake Seven Falls Assn Inc has 1 contaminant at or over an EPA legal limit; 3 contaminants are above health goals, led by lead at 9.6× California’s Public Health Goal.
• Closer to Superfund sites than 85% of U.S. neighborhoods, with no listed site within 10 miles of its center.
• Largest share of modeled toxic air from industry: Mississippi Lime Co Ste Genevieve (75%), mostly sulfuric acid.
• Fine particles (PM2.5) average 7.1 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 45,599 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 63670

• Superfund sites nearbyA to F
• Factories and industrial sitesA to C
• Oil and gas wellsA to B
• Parks and nature nearbyC
• Air qualityA to B
• Drinking water qualityD
• Pesticide useF
• Neighborhood health statusD
• Past wildfire impactsA
• Past flood impactsA to F
• Noise levelsA to D
• Radiation signalsC to D

Based on 5 census tracts · compiled September 10, 2026 · how each grade works and its sources

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