Alameda County, CA

ZIP 94542

In ZIP 94542, 4 of the 12 things we check have at least one part graded D or F.

• Drinking water: Zone 7 Water Agency has 4 contaminants at or over an EPA legal limit; 22 contaminants are above health goals, led by lead at 51× California’s Public Health Goal.
• Closer to Superfund sites than 0% of U.S. neighborhoods, with no listed site within 10 miles of its center.
• Largest share of modeled toxic air from industry: Tesla Inc. (40%), mostly cobalt compounds.
• Fine particles (PM2.5) average 8.2 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 57,837 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 94542

• Superfund sites nearbyA
• Factories and industrial sitesD
• Oil and gas wellsA
• Parks and nature nearbyB to D
• Air qualityB to D
• Drinking water qualityC to F
• Pesticide useB
• Neighborhood health statusA to B
• Past wildfire impactsC
• Past flood impactsA
• Noise levelsA to C
• Radiation signalsC

Based on 6 census tracts · compiled September 10, 2026 · how each grade works and its sources

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