Santa Clara County, CA
ZIP 94086
In ZIP 94086, 6 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; 11 contaminants are above health goals, led by pfos at 2.7× California’s Public Health Goal.
- Nearest Superfund site: Westinghouse Electric Corp. (sunnyvale Plant), 1.9 miles away (3 within 10 miles).
- Largest share of modeled toxic air from industry: Tesla Inc. (68%), mostly cobalt compounds.
- Fine particles (PM2.5) average 8.9 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 94086
- Superfund sites nearbyF
- Factories and industrial sitesF
- Oil and gas wellsA
- Parks and nature nearbyB to D
- Air qualityC to F
- Drinking water qualityC
- Pesticide useB to D
- Neighborhood health statusA
- Past wildfire impactsC
- Past flood impactsA
- Noise levelsA to D
- Radiation signalsB to C
Based on 15 census tracts · compiled October 25, 2026 · how each grade works and its sources
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