What EPA data, PFAS monitoring, and independent health research reveals about San Jose's drinking water -- and what you can do about it.
Silicon Valley has a troubling history of industrial chemical contamination in groundwater.
San Jose Water serves areas with legacy tech-industry Superfund sites that have impacted aquifers.
Chromium-6 has been detected in Bay Area water above California health goals.
Nitrates from agricultural Santa Clara Valley land use add to the contamination profile.
San Jose water meets EPA legal standards but meeting standards is not the same as being free of contaminants. EPA limits are set based on feasibility, not always on what is safest for health. Enter your ZIP above to see the full violation history and PFAS data for your specific water system.
Even compliant water can contain contaminants at levels above what independent health scientists consider safe -- particularly for PFAS, lead, and chromium-6. An EPA-certified RO system removes 95-99% of all detected contaminants and costs $0.10-$0.25 per gallon, compared to $1-$3 for bottled water.
For most US cities, a reverse osmosis system under the sink is the gold standard -- it removes lead, PFAS, arsenic, nitrates, fluoride, and virtually everything else. For renters, a Waterdrop D4 countertop RO requires zero installation. Enter your ZIP above to get personalized recommendations based on your actual water report.
City-wide data is just the start. Enter your ZIP to see your exact water system's EPA report, PFAS levels, and violation history.
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