California has 17 desalination plants in the works
##Carlsbad: The United States' largest desalination plant is being constructed by Poseidon Resources and is expected to go online 2016.[142] It is expected to produce 50 million gallons a day to 110,000 customers in San Diego County at an estimated cost of $1b.
##Concord: Planned to open in 2020, producing 20 million gallons a day.
##Monterey County: Sand City, two miles north of Monterey, with a population of 334, is the only city in California completely supplied with water from a desalination plant.
##Santa Barbara: The Charles Meyer Desalination Facility[143] was constructed in Santa Barbara, California, in 1991–92 as a temporary emergency water supply in response to severe drought. While it has a high operating cost, the facility only needs to operate infrequently, allowing Santa Barbara to use its other supplies more extensively.