Is San Jose, California tap water safe?
3 water systems report serving San Jose. Your water depends on which one serves your address. Check your bill if unsure.
A
City of San Jose - Evg/Edv/Coy
Serves 99,783 people · Surface water · Full report →
No health-based violations in the last 5 years; PFAS tested (UCMR 5), none above federal limits; Lead 90th percentile below the action level (2024).
A
City of San Jose - Nsj/Alviso
Serves 48,082 people · Surface water · Full report →
No health-based violations in the last 5 years; PFAS tested (UCMR 5), none above federal limits; Lead 90th percentile below the action level (2024).
A
Cwsc King City
Serves 14,046 people · Groundwater · Full report →
No health-based violations in the last 5 years; PFAS tested (UCMR 5), none above federal limits; Lead 90th percentile below the action level (2023).