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Sacramento San Joaquin Delta

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The Sacramento-San Joaquin Bay-Delta (“Delta”), a 700-mile maze of sloughs, canals, waterways and islands located where the San Joaquin and Sacramento rivers converge is the largest estuary on the West Coast and California’s main water supply hub.

The Delta is one of the most important aspects of California’s water delivery system – serving millions throughout Northern, Central and Southern California – and is home to hundreds of species of fish and wildlife. In addition to supporting an important ecosystem, water from the Delta is indispensable to the agricultural industry and businesses that drive our state’s economy. Water conveyed through the Delta sustains $400 billion of California’s statewide economy.

The Delta is home to:

  • More than 500,000 people
  • 500,000 acres of agriculture
  • 700 native plant and animal species
  • Energy, communications and transportation facilities vital to the economic health of California

Delta Challenges

For years though the Delta has been troubled by invasive species, urban and agricultural pollutants discharged into Delta waters, and state and federal pumping operations.

It has been widely acknowledged by environmentalists, scientists, regulators, water agencies, state and federal agencies that the Delta is no longer suitable to sustain the state’s water deliveries. An effort known as the Bay Delta Conservation Plan has been underway for the past five years to identify solutions that will resolve conflicts between water supplies for people and the environmental needs of the Delta.

Read more about the Bay Delta Conservation Plan.

Download the Sacramento San Joaquin Delta Fact Sheet

Featured Member

Dudley Ridge Water District

Dudley Ridge Water District supplies State Water Project water to agricultural water users within the District’s 40,000 acres in western Kings County. All District facilities are lined canals or pipelines; water users all employ drip or micro-sprinkler irrigation systems on permanent crops (pistachios, almonds, pomegranates, stone fruit,...

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Featured Issue

State Water Project

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The State Water Project is the nation's largest state-built water and power development and delivery system. Stretching from Northern California through the Bay Area, the Central Valley and into Southern California, it is a multi-faceted system that includes reservoirs, lakes, storage tanks, canals, tunnels, pipelines and pumping and power...

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