Alameda County, CA

ZIP 94703

In ZIP 94703, 3 of the 12 things we check have at least one part graded D or F.

• Drinking water: East Bay Mud meets every EPA legal limit; 9 contaminants are above health goals, led by pfos at 1.4× California’s Public Health Goal.
• Nearest Superfund site: Amco Chemical, 4.0 miles away (3 within 10 miles).
• Largest share of modeled toxic air from industry: Bio-Rad Laboratories Inc (64%), mostly acrylamide.
• Fine particles (PM2.5) average 8.0 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 94703

• Superfund sites nearbyD to F
• Factories and industrial sitesF
• Oil and gas wellsA
• Parks and nature nearbyC
• Air qualityB to D
• Drinking water qualityC
• Pesticide useB
• Neighborhood health statusA
• Past wildfire impactsA
• Past flood impactsA
• Noise levelsA to C
• Radiation signalsB to C

Based on 7 census tracts · compiled October 25, 2026 · how each grade works and its sources

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