Waukesha County, WI

ZIP 53151

In ZIP 53151, 7 of the 12 things we check have at least one part graded D or F.

• Drinking water: West Allis Waterworks meets every EPA legal limit; 8 contaminants are above health goals, led by lead at 42× California’s Public Health Goal.
• Nearest Superfund site: Muskego Sanitary Landfill, 4.5 miles away (3 within 10 miles).
• Largest share of modeled toxic air from industry: Ppg Industries Inc-Oak Creek (25%), mostly chromium.
• Fine particles (PM2.5) average 7.8 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 53151

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

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

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