Through an ingenious labyrinth of canals and pipelines, Los Angeles imports about 90% of its tap water from the Colorado River and the San Joaquin-Sacramento River Delta.

Where does California tap water come from?

California’s limited water supply comes from two main sources: surface water, or water that travels or gathers on the ground, like rivers, streams, and lakes; and groundwater, which is water that is pumped out from the ground. California has also begun producing a small amount of desalinated water, water that was once …

Does LA have bad tap water?

Environmental group says legal standards still pose health risks. A nonprofit environmental group says Los Angeles tap water still contains high levels of chemicals, even if it meets federal requirements.