Linn County, IA

ZIP 52228

In ZIP 52228, 6 of the 12 things we check have at least one part graded D or F.

• Drinking water: Twin Valley Lakes Improvement Assn meets every EPA legal limit; 4 contaminants are above health goals, led by arsenic at 2,250× California’s Public Health Goal.
• Nearest Superfund site: Electro-Coatings, Inc., 5.1 miles away.
• Largest share of modeled toxic air from industry: Adm Corn Processing (43%), mostly chromium compounds.
• Fine particles (PM2.5) average 7.2 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 294,543 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 52228

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

Based on 4 census tracts · compiled October 25, 2026 · how each grade works and its sources

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