Waukesha County, WI

ZIP 53069

In ZIP 53069, 3 of the 12 things we check have at least one part graded D or F.

• Drinking water: Oconomowoc Waterworks meets every EPA legal limit; 14 contaminants are above health goals, led by pfos at 3.1× California’s Public Health Goal.
• Nearest Superfund site: Oconomowoc Electroplating Co., Inc., 8.1 miles away.
• Largest share of modeled toxic air from industry: Milwaukee Precision Casting (17%), mostly chromium.
• Fine particles (PM2.5) average 6.8 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 69,527 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 53069

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

Based on 1 census tract · compiled September 10, 2026 · how each grade works and its sources

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