Clinton County, IA

ZIP 52731

In ZIP 52731, 5 of the 12 things we check have at least one part graded D or F.

• Drinking water: Sabula Water Supply has 1 contaminant at or over an EPA legal limit; 5 contaminants are above health goals, led by di(2-ethylhexyl) phthalate at 66× California’s Public Health Goal.
• Nearest Superfund site: Savanna Army Depot Activity, 8.6 miles away.
• Largest share of modeled toxic air from industry: Metform L.L.C. Hot Formed Products Plant (63%), mostly chromium.
• Fine particles (PM2.5) average 7.0 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 189,124 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 52731

• Superfund sites nearbyC
• Factories and industrial sitesC
• Oil and gas wellsA
• Parks and nature nearbyC to D
• Air qualityB
• Drinking water qualityC to D
• Pesticide useF
• Neighborhood health statusD
• Past wildfire impactsA
• Past flood impactsC
• Noise levelsA
• Radiation signalsD

Based on 2 census tracts · compiled September 10, 2026 · how each grade works and its sources

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