Water Quality in San Jose, CA
Detailed water quality data for San Jose, California including contaminant levels, EPA comparisons, AquaScore™ grading, and treatment recommendations.
Water utility: San Jose Water Company.
Water source: Sacramento-San Joaquin Delta, local groundwater, recycled water.
Key Contaminants Found
- Chromium (hexavalent)
- Total trihalomethanes (TTHMs)
- Haloacetic acids (HAA5)
- 1,2,3-Trichloropropane
- Nitrate
Silicon Valley's groundwater has been impacted by decades of industrial activity. 1,2,3-TCP, a legacy industrial solvent, is detected in some wells at levels exceeding California's health guidelines.