Dane County, WI

ZIP 53704

In ZIP 53704, 9 of the 12 things we check have at least one part graded D or F.

• Drinking water: Waunakee Waterworks has 1 contaminant at or over an EPA legal limit; 12 contaminants are above health goals, led by arsenic at 2,750× California’s Public Health Goal.
• Nearest Superfund site: Madison Metropolitan Sewerage District Lagoons, 5.4 miles away.
• Largest share of modeled toxic air from industry: Safety-Kleen Systems Inc. (72%), mostly polycyclic aromatic compounds.
• Fine particles (PM2.5) average 8.3 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 53704

• Superfund sites nearbyA to D
• Factories and industrial sitesC to F
• Oil and gas wellsA
• Parks and nature nearbyC to F
• Air qualityC to D
• Drinking water qualityC to F
• Pesticide useD to F
• Neighborhood health statusA to D
• Past wildfire impactsA
• Past flood impactsA
• Noise levelsA to F
• Radiation signalsD

Based on 16 census tracts · compiled September 10, 2026 · how each grade works and its sources

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