The Need

New Delta Conveyance

Prior Decisions



California Governor Sets
New Direction for Delta Conveyance

In his first State of the State Address in February, Gov. Gavin Newsom announced his support of a one-tunnel approach to water conveyance in the Delta. In early May, the Department of Water Resources withdrew proposed permits for California WaterFix. It will begin a new environmental review process for a new single-tunnel Delta conveyance solution. Metropolitan intends to work constructively with the Newsom Administration on developing a refined project that addresses the needs of cities, farms and the environment.

California WaterFix
Consistency Determination

In July 2018, the Department of Water Resources submitted documents to the Delta Stewardship Council finding that California WaterFix is consistent with the Delta Plan’s coequal goals of providing a more reliable water supply for California and protecting, restoring and enhancing the Delta ecosystem.

Nine appeals to DWR’s consistency determination were filed by 26 individuals, counties, agencies, and organizations alleging the project is inconsistent with the Delta Plan and will have an adverse impact on one or both of the coequal goals.

The DSC held a hearing in October to hear public comment regarding the appeals that challenged the ability of the California WaterFix project to move forward and begin construction.

In November, DSC staff made a draft determination that the project is not aligned to the Delta Plan. DWR ultimately withdrew the determination and indicated that it would work with the DSC to resolve issues related to the interpretation of the Delta Plan and submit a revised certification.

July 2018: Metropolitan Board Takes Vote
on Additional California WaterFix Funding

Metropolitan’s board approved additional financing needed for the full construction of the California WaterFix project, making Metropolitan the primary investor of the project. The district took a similar vote in April. However, following that action, two organizations sent a notice alleging violations of the Brown Act, a state law ensuring open access and transparency in public meetings. Although Metropolitan sent a notice disagreeing with its legal conclusion, the board voted on the matter again to ensure there was no question regarding the validity of the board’s consideration of the increased funding for California WaterFix. In September 2018, the two organizations filed an action challenging the validity of the Metropolitan Board’s July 10, 2018 vote on California WaterFix. In March 2019, a Los Angeles County Superior Court issued a ruling that will dismiss the case in its entirety following the submission of a proposed judgment by Metropolitan and the San Diego County Water Authority.


Metropolitan welcomes Governor Newsom’s endorsement of modernizing California’s water conveyance system in the Delta. It is imperative that we move forward rapidly on a conveyance project. Having no Delta fix imperils all of California.

- Jeffrey Kightlinger, Metropolitan General Manager

April 2018: Metropolitan Approves Additional
Financing of Full California WaterFix Project

Metropolitan’s board approved additional financing necessary to allow for the construction of the full California WaterFix project. Metropolitan’s share is about $10.8 billion, making Metropolitan the primary investor and more than doubling the agency’s initially planned investment to ensure the project is completed as originally proposed and studied. The action followed a series of public meetings to review different components of California WaterFix, including the physical project, the proposed water operations and key financial issues. A listing of letters and resolutions submitted to Metropolitan can be found here.

October 2017: Metropolitan Approves its
Share of Funding for California WaterFix

Metropolitan’s board approved the district’s 26 percent share of California WaterFix financing as well as moving forward on a governance structure to build and finance the $17 billion project. Metropolitan’s share is about $4.3 billion.

Environmental Analysis

Near the end of 2016, the final environmental analysis for the California WaterFix project was published, representing a decade of scientific study, analysis and public input. The next milestone in the decision-making process was the release of biological opinions by the U.S. Fish and Wildlife Service and the National Marine Fisheries Service on June 26, which showed the project’s effects on endangered species. This opinion will be followed by the release of the federal Record of Decision and the state’s Notice of Decision, which would allow the project to proceed.


The materials below are designed to educate and inform Southern Californians on the Delta conveyance project.


The mission of the Metropolitan Water District of Southern California is to provide its service area with adequate and reliable supplies of high-quality water to meet present and future needs in an environmentally and economically responsible way.


The Metropolitan Water District of Southern California is a state-established cooperative of 26 member agencies – cities and public water agencies – that serve nearly 19 million people in six counties. Metropolitan imports water from the Colorado River and Northern California to supplement local supplies and helps its members develop increased water conservation, recycling, storage and other resource management programs.

Metropolitain Water District of Southern California BE INFORMED, BE INVOLVED


© 2018 The Metropolitan Water District of Southern California. All rights reserved. Some photos featured on this website are courtesy of DWR.