Black Hawk County, IA

ZIP 50651

In ZIP 50651, 8 of the 12 things we check have at least one part graded D or F.

• Drinking water: Cedar Falls Municipal Water Utilities has 1 contaminant at or over an EPA legal limit; 12 contaminants are above health goals, led by pfos at 168× California’s Public Health Goal.
• Nearest Superfund site: Waterloo Coal Gasification Plant, 5.1 miles away.
• Largest share of modeled toxic air from industry: John Deere Waterloo Works Drivetrain Operations And Foundry (68%), mostly chromium compounds.
• Fine particles (PM2.5) average 6.7 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 318,803 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 50651

• Superfund sites nearbyA to D
• Factories and industrial sitesB to D
• Oil and gas wellsA
• Parks and nature nearbyC
• Air qualityB
• Drinking water qualityA to F
• Pesticide useF
• Neighborhood health statusB to D
• Past wildfire impactsA
• Past flood impactsC to F
• Noise levelsA to D
• Radiation signalsD to F

Based on 6 census tracts · compiled October 25, 2026 · how each grade works and its sources

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