Santa Clara County, CA

ZIP 94022

In ZIP 94022, 5 of the 12 things we check have at least one part graded D or F.

• Drinking water: Santa Clara Valley Water District meets every EPA legal limit; 14 contaminants are above health goals, led by pfos at 3.7× California’s Public Health Goal.
• Nearest Superfund site: Intersil Inc./siemens Components, 6.5 miles away (3 within 10 miles).
• Largest share of modeled toxic air from industry: Tesla Inc. (70%), mostly cobalt compounds.
• Fine particles (PM2.5) average 7.3 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 162,482 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 94022

• Superfund sites nearbyF
• Factories and industrial sitesB
• Oil and gas wellsA
• Parks and nature nearbyB to F
• Air qualityA to C
• Drinking water qualityA to F
• Pesticide useC
• Neighborhood health statusA to B
• Past wildfire impactsA to C
• Past flood impactsA
• Noise levelsA to D
• Radiation signalsC to D

Based on 8 census tracts · compiled September 10, 2026 · how each grade works and its sources

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