Dakota County, MN

ZIP 55122

In ZIP 55122, 6 of the 12 things we check have at least one part graded D or F.

• Drinking water: Eagan meets every EPA legal limit; 10 contaminants are above health goals, led by arsenic at 125× California’s Public Health Goal.
• Nearest Superfund site: Twin Cities Air Force Reserve Base (small Arms Range Landfill), 3.5 miles away (3 within 10 miles).
• Largest share of modeled toxic air from industry: St Paul Park Refining Co LLC (35%), mostly cobalt compounds.
• Fine particles (PM2.5) average 8.8 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 219,011 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 55122

• Superfund sites nearbyD
• Factories and industrial sitesC to F
• Oil and gas wellsA
• Parks and nature nearbyB to C
• Air qualityD to F
• Drinking water qualityC
• Pesticide useC to F
• Neighborhood health statusA to C
• Past wildfire impactsA
• Past flood impactsA
• Noise levelsA to D
• Radiation signalsC to D

Based on 11 census tracts · compiled October 25, 2026 · how each grade works and its sources

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