State Water Project
The California State Water Project is the world's largest publicly built and operated water and power development and conveyance system. The SWP was designed and is operated by the California Department of Water Resources. Construction began in the late 1950s, with major funding approved in a 1960 bond measure. The SWP provides drinking water for over 23 million people and generates an average 6.5 million MWh of hydroelectricity annually.
Central Valley Project
The Central Valley Project is a United States Bureau of Reclamation federal water project; its primary purpose is to deliver water from reservoirs in the wet Cascade Range to the arid southern parts of the state. 20 dams and reservoirs, 11 hydroelectric power plants, and 500 miles (800 km) of canals and aqueducts make up the infrastructure of the project, one of the largest water conservation projects undertaken in the United States.
The Metropolitan Water District and The San Francisco Public Utilities Commission provide water, wastewater, and municipal power services to San Francisco and Southern California. The SFPUC and MWD operate under a contractual agreements with wholesale water agencies to supply water to Californians.