
Drawing strong criticism from salmon advocates and environmentalists and praise from water agencies and agribusiness, the Gavin Newsom Administration on January 15 formally began the planning process for a controversial single tunnel under the Sacramento-San Joaquin River Delta when the California Department of Water Resources (DWR) released its Delta Conveyance Notice of Preparation.
The notice starts the preparation of an Environmental Impact Report (EIR) for the Delta Conveyance Project that will divert water from the Sacramento River through a tunnel to the state and federal water pumping facilities in the South Delta, to then be shipped to San Joaquin Valley irrigators and Southern California water agencies.
According to the documents, the state will consider a tunnel that would divert 6,000 cubic feet per second (cfs) of water from the Sacramento River. Tunnels with the capacity to divert 3,000 cfs and 7,500 cfs will also be considered as alternatives.
In February of 2019, Governor Gavin Newsom announced that his administration was abandoning Governor Jerry Brown’s twin tunnels project and replacing it with a single Delta Tunnel. The project will require approval from both state and federal government agencies.
In a news release, DWR said the purpose in proposing this project is to develop diversion and conveyance facilities in the Delta necessary to restore and protect the reliability of California’s water deliveries south of the Delta in a cost-effective manner, and consistent with the recently released draft Water Resilience Portfolio.
“Governor Newsom directed state agencies to pursue a single tunnel solution to modernize our water infrastructure, and when combined with the broader, statewide Portfolio approach, this project would help safeguard a vital source of affordable water for millions of Californians,” said DWR.