Calif. voters backed $7.5bil bond for dams. Here’s where things stand 7 years later.

Some ask, “Why have no new reservoirs been built in the seven years since?” Rest assured, there are projects in the works. All recently passed a key milestone and are moving forward.

Written by Teresa Alvarado and Matthew Swanson, Chair and Vice Chair of the California Water Commission

In November 2014, California voters approved Proposition 1: The Water Quality, Supply, and  Infrastructure Improvement Act. The $7.5 billion bond dedicated $2.7 billion for the public benefits of new water storage projects.


Some ask, “Why have no new reservoirs been built in the  seven years since?” Rest assured, there are projects in the works. All recently passed a key milestone and are moving forward. 

Any large-scale water storage project is complex and requires a high degree of planning,  engineering, coordination — and significant financing. The California Water Commission has actively overseen the proposed projects over the past six years to help ensure they meet  statutory requirements, progress at the rate dictated by the bond legislation, and meet the  public benefits promised to voters. 

Proposition 1, Chapter 8 designated the Commission as the agency to administer the Water  Storage Investment Program (WSIP). Investing in defined public benefits is a new approach to  state financing of water storage projects. Under Proposition 1, public benefits fall into five  categories: water quality improvement, flood control, emergency response, recreation, and  ecosystem improvement. To qualify for the program, applicants must show that their project  would advance the long-term objectives of restoring ecological health and improving water management for beneficial uses of the Sacramento-San Joaquin Delta, the crossroads of major water project operations and important habitat for endangered fish species. 

In the two years after voters passed Proposition 1, the Commission drafted, adopted, and  approved regulations through a transparent public process. In 2017, local water districts  submitted 12 applications for the Proposition 1 funding. Commission staff and state agency  experts reviewed each submission. In July 2018, the Commission decided the maximum eligible  amount of bond funding that would be made available to fund the public benefits of eight  proposed projects. They include a proposed reservoir in Glenn and Colusa counties that would hold water piped to it from the Sacramento River and several groundwater banks in Southern  California. 

Proposition 1 set a single deadline for the water storage program: By January 1, 2022, all project proponents must have completed feasibility studies, released a draft version of their environmental documents for public review, provided documentation of commitments for at least 75 percent of the non-public benefit funding, and have the Commission find that their project is feasible. Seven of the projects came before the Commission in 2021. All were found feasible and remain eligible to continue in the program.

In November 2020, one applicant withdrew from the program. The Commission redistributed a portion of the funding that project would have been eligible for among the remaining seven projects in the form of a 2.5 percent inflation adjustment. With an additional $64 million still available with the withdrawal of an original applicant, the Commission reviewed potential new  projects, two of which completed the screening process in 2021. In addition, the Commission has  awarded early funding totaling $116 million to help project proponents complete environmental  documents and permits. 

At this point, there are a total of seven projects moving forward with Proposition 1 funding that would provide 2.77 million acre-feet of water storage and significant public benefits.

Under Proposition 1, before any project can receive its final award of funding, proponents must submit to the Commission completed environmental documents, permits, non-public benefit cost share contracts, and contracts with state agencies for the administration of public benefits. 

The Commission remains ready to award final funding as soon as these requirements are met. While there is no statutory deadline for a project to compete these requirements, the Commission does have the discretion to determine a project is not making sufficient progress and rescind its bond funding. 

Each of the seven projects is different and is proceeding at different speeds. Some projects may be finished and operating within two years. Others will take longer. 

Since 2017, the planned implementation schedules have not changed significantly. As of this date, four projects have adopted or certified final environmental documents.

Most likely to finish first is a south Sacramento County groundwater storage project called Harvest Water. Managed by the Sacramento County Regional Sanitation District, the project would use highly-treated wastewater  to replace groundwater as a source of water to irrigate farmland and habitat, thus preserving  groundwater. The Harvest Water Program hopes to come before the Commission for final  funding later this year. 

Things are getting done. Progress is being made. The Commission is carrying out the  voters’ intent. We are anxious to fund the projects once the statutory requirements have been met and we look forward to seeing these projects deliver the public benefits associated with new  water storage capacity so vitally needed in our state. 

To find out more information on the WSIP projects and to view their projected timelines, visit 

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