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The Metropolitan Water District of Southern California
Jensen Treatment Plant

The Joseph Jensen Treatment Plant is located in Granada Hills and distributes water to San Fernando Valley, Ventura County, West Los Angeles, Santa Monica and the Palos Verdes Peninsula.


It is Metropolitan's largest treatment plant and the largest west of the Mississippi River, with a capacity of 750 million gallons a day. That's enough to fill the Rose Bowl in less than three hours.


The 125-acre Jensen plant only treats water from the State Water Project, which comes from the California Aqueduct. The aqueduct carries water from Northern California that flows through the Sacramento-San Joaquin Delta.


The facility was among the first of Metropolitan's treatment plants to convert to ozone treatment, with the project finished in 2005.


The plant is named after Joseph Jensen, who served as chairman of the Board of Directors a record 25 years, from 1949 until his death in 1974.


Joseph Jensen
Treatment Plant

13100 Balboa Blvd.
Granada Hills, CA 91344

(818) 360-6810