Dane County, WI

ZIP 53527

In ZIP 53527, 7 of the 12 things we check have at least one part graded D or F.

• Drinking water: East Bristol Utility Coop has 1 contaminant at or over an EPA legal limit; 5 contaminants are above health goals, led by pfos at 4.1× California’s Public Health Goal.
• Nearest Superfund site: Madison Metropolitan Sewerage District Lagoons, 7.3 miles away (3 within 10 miles).
• Largest share of modeled toxic air from industry: Hydrite Chemical Co. (43%), mostly formaldehyde.
• 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 53527

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

Based on 4 census tracts · compiled September 10, 2026 · how each grade works and its sources

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