Burnett County, WI

ZIP 54840

In ZIP 54840, 4 of the 12 things we check have at least one part graded D or F.

• Drinking water: Siren Waterworks meets every EPA legal limit; 5 contaminants are above health goals, led by lead at 14× California’s Public Health Goal.
• Nearest Superfund site: Penta Wood Products, 3.2 miles away.
• Largest share of modeled toxic air from industry: Zinpro Corp (92%), mostly cobalt compounds.
• Fine particles (PM2.5) average 6.5 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 92,863 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 54840

• Superfund sites nearbyA to D
• Factories and industrial sitesA
• Oil and gas wellsA
• Parks and nature nearbyB to C
• Air qualityA
• Drinking water qualityD
• Pesticide useF
• Neighborhood health statusD to F
• Past wildfire impactsA
• Past flood impactsA
• Noise levelsA
• Radiation signalsC

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

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