Santa Clara County, CA

ZIP 95148

In ZIP 95148, 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; 14 contaminants are above health goals, led by pfos at 3.7× California’s Public Health Goal.
• Nearest Superfund site: Lorentz Barrel & Drum Co., 3.2 miles away (3 within 10 miles).
• Largest share of modeled toxic air from industry: Tesla Inc. (79%), mostly cobalt compounds.
• Fine particles (PM2.5) average 8.8 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 95148

• Superfund sites nearbyD
• Factories and industrial sitesC
• Oil and gas wellsA
• Parks and nature nearbyC to F
• Air qualityC to F
• Drinking water qualityC to F
• Pesticide useC
• Neighborhood health statusA to B
• Past wildfire impactsF
• Past flood impactsB
• Noise levelsA to D
• Radiation signalsC

Based on 12 census tracts · compiled September 10, 2026 · how each grade works and its sources

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