DWR today released the Draft Environment Impact Report (Draft EIR) for the Delta Conveyance Project, marking an important step in evaluating a key strategy to adapt to a changing climate and provide clean, reliable water for future generations.
Delta Conveyance
An aerial view of the Harvey O. Banks Delta Pumping Plant, the first major plant designed and constructed within the California State Water Project.
Note: Delta Conveyance Project Draft Environmental Impact Report (EIR) available for public review and comment: July 27, 2022 – December 16, 2022. Visit the Draft EIR website for more information.
What is Delta conveyance?
Delta conveyance refers to State Water Project (SWP) infrastructure in the vast network of waterways comprising the Sacramento-San Joaquin Delta (Delta) that collects and moves fresh, clean and affordable water to homes, farms and businesses throughout major regions of the state from the Bay Area to Southern California. The Department of Water Resources (DWR) is the owner and operator of the SWP and is responsible for all associated upgrades and maintenance, including the proposed Delta Conveyance Project that will modernize this water transport infrastructure in the Delta.
View this Story Map for more information on several key aspects of the Delta Conveyance Project.
Why is Delta conveyance important?
The Delta is at the center of California’s vital water distribution system. Two-thirds of California’s water originates in the Sierra Nevada Mountains as snowpack, eventually flowing through the Delta, where, consistent with water rights, including applicable water quality requirements, it is delivered to more than 27 million Californians and 750,000 acres of farmland. The infrastructure that enables conveyance for California’s primary water supply is critical to the health of local communities and the success of our state’s economy.
Why is this project needed?
Because the SWP relies on the Delta’s natural channels to convey water, it is vulnerable to earthquakes and sea level rise. Upgrading SWP infrastructure protects against these threats and secures the longevity of the SWP and the future reliability of SWP water supplies. The purpose of the proposed Delta Conveyance Project is to modernize the aging SWP infrastructure in the Delta to restore and protect the reliability of SWP water deliveries in a cost-effective manner, consistent with the State’s Water Resilience Portfolio. And in doing so, allow DWR to address sea level rise and climate change, minimize water supply disruption due to seismic risk and provide operational flexibility to improve aquatic conditions in the Delta.
View more frequently asked questions related to the Delta Conveyance Project.
Delta Conveyance Deep Dive Feature Video
Delta Conveyance Updates
Modernizing how California moves water supplies across the Sacramento-San Joaquin Delta can’t be done by repeating the past.
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Preventing fish from getting caught up in the water diverted at the intakes - a situation known as “entrainment” - is a high priority and many innovative technologies have been developed to meet the challenge.
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California is immersed in a third year of drought, with January, February and March of 2022 experiencing the lowest precipitation on record. Weather whiplash of big storms followed by dry spells makes every drop of rain, every flake of snow, and every water molecule vital this year for families, farms, the environment and the economy.
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Contact Us
Questions and More Information:
1-866-924-9955 | deltaconveyance@water.ca.gov
Media Inquiries:
Lisa Lien-Mager (916) 653-9402
Lisa.LienMager@resources.ca.gov
Ryan Endean (916) 798-1701
Ryan.Endean@water.ca.gov
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Events
Delta Conveyance Project EIR Virtual Public Hearing- Sept. 28
The public is invited to comment on the Draft Environmental Impact Report (EIR) for the Delta Conveyance Project
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