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Water Supply
Where our water comes from
Where our water comes from

Many people don't realize that half of the water used in Southern California originates hundreds of miles away in the Colorado River Basin and Northern California. Today, with both of those regions in the throes of drought, it's even more critical for the Southland to do more with less water. The long, long journey Imported water reaches the Southland via three major aqueducts. The 444-mile California Aqueduct, which runs down the west side of the Central Valley, carries snowmelt from Northern California that originates on the western side of the Sierra Nevada. The 419-mile Los Angeles Aqueduct carries water south from the Owens Valley and the eastern side of the Sierra....

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