Dane County, WI

ZIP 53558

In ZIP 53558, 4 of the 12 things we check have at least one part graded D or F.

• Drinking water: Fitchburg Utility Dist 1 South meets every EPA legal limit; 9 contaminants are above health goals, led by arsenic at 111× California’s Public Health Goal.
• Nearest Superfund site: Madison Metropolitan Sewerage District Lagoons, 3.5 miles away (3 within 10 miles).
• Largest share of modeled toxic air from industry: Weir Slurry Group Inc (25%), mostly chromium.
• Fine particles (PM2.5) average 7.5 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 319,659 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 53558

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

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

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