Delta Tunnel

Delta Tunnel

The disastrous Delta tunnel has taken the form of previous water conveyance projects in the past, like the Peripheral Canal idea that was rejected by California voters way back in 1982 and California WaterFix that died in 2019. Currently known as the Delta Conveyance Project, the proposal would construct two new water intake facilities on the Sacramento River in the North Delta to fill a single tunnel that would divert freshwater flows. That water would be shipped to large farming operations and water wholesalers south of the Delta. The Delta Conveyance project would divert up to 6,000 cubic feet of water per second. The project is estimated to cost between $16-40 billion and won’t be completed until at least 2040.

The California Department of Water Resources published the final Environmental Impact Report (FEIR) for the Delta Conveyance Project on December 8, 2023, and published a Notice of Determination (NOD) on December 21, 2023. The NOD is the final administrative published record for a proposed project by the lead agency, which in this case is the Department of Water Resources.

Reviewing the prior Draft EIR, Restore the Delta identified 17 significant and unavoidable impacts of the proposed tunnel project on the environment that were not accounted for in the Draft EIR. Among these impacts will be the loss of prime agricultural farmland, loss of local non-tribal cultural resources, transportation and air quality impacts, and painful loss of tribal cultural resources.

The recently certified final EIR still largely ignores the project’s impacts on Delta urban environmental justice communities, how construction will ruin small Delta farming towns, and the natural resources essential to the cultural and spiritual practices of Delta tribes.

On January 22, 2023, Restore the Delta with a coalition of environmental and Tribal organizations took legal action against the California Department of Water Resources following the certification and approval of the FEIR for its violation of the California Environmental Quality Act (CEQA). The CEQA case includes 13 CEQA violations. The groups claim that after the approval of the project from the agency, it failed to consider the extensive, disparate effects the project would inflict upon communities and wildlife, such as Tribal and other historically marginalized communities and endangered fish species.

The groups taking legal action against the Department of Water Resources include The Bay Institute, California Indian Environmental Alliance, Golden State Salmon Association, Restore the Delta, San Francisco Baykeeper, and the Shingle Springs Band of Miwok Indians.

Diverting more water will not solve California’s water crisis. We have altered California’s water system far from its natural state and it is causing irreparable harm to tribes, communities, and estuarine wildlife. This is the 4th generation to advocate against this bad project because they know the climate change claims that the tunnel will secure the future are false. Together, we will ensure that a just and resilient water future advances for the Delta and our local communities, as well as our neighbors throughout California.