Is Tap Water Safe to Drink in Los Angeles?
Yes, tap water in Los Angeles is safe to drink. It's supplied by a blend of imported and local sources, treated by LADWP, and meets both EPA and California's stricter state drinking water standards.
Water Source
LADWP blends water from the LA Aqueduct (Eastern Sierra/Owens Valley), the Colorado River and State Water Project (via the Metropolitan Water District), and a growing share of local groundwater and recycled water.
EPA Compliance Status
Meets all federal Safe Drinking Water Act standards and California's additional state-level requirements, among the strictest in the U.S.
Notable Contaminants & Context
- •Some San Fernando Valley groundwater wells were historically affected by industrial solvent contamination (TCE/PCE), addressed through dedicated treatment facilities before that water enters the drinking supply
- •California regulates additional constituents like chromium-6 more strictly than federal minimums
How It Compares
LA's supply mix has shifted substantially toward local groundwater and recycled water (Operation NEXT, Pure Water LA) to reduce reliance on imported water amid Colorado River and Sierra snowpack variability, a widely cited model for large-city water resilience.
Tips
- •Hardness and taste vary noticeably by neighborhood depending on the local source blend
- •LADWP publishes water quality reports by pressure zone
- •No need for bottled water around the city