page_title: California State Water Project
section_title: Delta facilities
hierarchical_section_title: California State Water Project / Project description / Delta facilities
caption_attribution_description: Lake Del Valle reservoir, within Del Valle Regional Park in the Diablo Range, Alameda County, San Francisco Bay Area, California. A part of the California State Water Project system infrastructure.
context_page_description: The California State Water Project, commonly known as the SWP, is a state water management project in the U.S. state of California under the supervision of the California Department of Water Resources. The SWP is one of the largest public water and power utilities in the world, providing drinking water for more than 23 million people and generating an average of 6,500 GWh of hydroelectricity annually. However, as it is the largest single consumer of power in the state itself, it has a net usage of 5,100 GWh.
  The SWP collects water from rivers in Northern California and redistributes it to the water-scarce but populous cities through a network of aqueducts, pumping stations and power plants. About 70% of the water provided by the project is used for urban areas and industry in Southern California and the San Francisco Bay Area, and 30% is used for irrigation in the Central Valley. To reach Southern California, the water must be pumped 2,882 feet over the Tehachapi Mountains, with 1,926 feet at the Edmonston Pumping Plant alone, the highest single water lift in the world.
context_section_description: From Oroville, a regulated water flow travels down the Feather and Sacramento Rivers to the Sacramento–San Joaquin River Delta. North of Rio Vista, about 120,000 acre feet (0.15 km³) per year is pumped into the 27.4-mile (44.1 km) North Bay Aqueduct, completed in 1988. The aqueduct delivers water to clients in Napa and Solano counties.
  The vast majority of the SWP water is drawn through the Delta's complex estuary system into the Clifton Court Forebay, located northwest of Tracy on the southern end of the Delta. Here, the Harvey O. Banks Pumping Plant lifts water 224 feet (68 m) into the California Aqueduct. Completed in 1963, the eleven pump units can lift up to 10,670 cu ft/s (302 m³/s) of water – upgraded in 1986 from its original capacity of 6,400 cu ft/s (180 m³/s) across seven units.
  From here the water flows briefly south along the California Aqueduct to the 4,800 acre⋅ft (0.0059 km³) Bethany Reservoir. The South Bay Pumping Plant supplies the South Bay Aqueduct, which has delivered water west to Alameda County since 1962 and Santa Clara County since 1965. The aqueduct carries a maximum of 188,000 acre⋅ft (0.232 km³) per year. Up to 77,100 acre⋅ft (0.0951 km³) of this water can be stored in Lake Del Valle, an offstream reservoir located near Livermore.
caption: Lake Del Valle stores SWP water diverted through the South Bay Aqueduct for use in the San Francisco Bay Area.
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