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Report

Comparing Futures for the Sacramento-San Joaquin Delta

By Ellen Hanak, Jay Lund, William Fleenor, Jeffrey Mount ...

For over 50 years, California has been pumping water through the Sacramento-San Joaquin Delta for extensive urban and agricultural uses around the state. Today, the Delta is ailing and in urgent need of a new management strategy. This report concludes that building a peripheral canal to carry water around the Delta is the most promising way to balance two critical policy goals: reviving a threatened ecosystem and ensuring a reliable, high-quality water supply for California.
 
More information can be found in the following supporting appendices:

Appendix A. Policy and Regulatory Challenges for the Delta of the Future

Appendix B. Levee Decisions and Sustainability for the Delta

Appendix C. Delta Hydrodynamics and Water Salinity with Future Conditions

Appendix D. The Future of the Delta Ecosystem and Its Fish

Appendix E. Expert Survey on the Viability of Delta Fish Populations

Appendix F. The Economic Costs and Adaptations for Alternative Delta Regulations

Appendix G. Peripheral Canal Design and Implementation Options

Appendix H. Delta Drinking Water Quality and Treatment Costs

Appendix I. The Economic Effects on Agriculture of Water Export Salinity South of the Delta

Appendix J. Decision Analysis of Delta Strategies
 
 
 

Report

Water and the Future of the San Joaquin Valley

By Ellen Hanak, Alvar Escriva-Bou, Brian Gray, Sarge Green ...

California’s largest agricultural region is in a time of great change and growing water stress. New cooperative approaches are needed to bring groundwater basins into balance, provide safe drinking water, and manage water and land to benefit people and nature.

Policy Brief

Policy Brief: Tracking Where Water Goes in a Changing Sacramento–San Joaquin Delta

By Greg Gartrell, Jeffrey Mount, Ellen Hanak

The Sacramento–San Joaquin Delta supplies water to roughly 30 million Californians, over 6 million acres of farmland, and countless ecosystems. But the watershed’s climate is changing: recent decades have seen record warmth, higher evaporation, and declining snowpack. We track where the water is going—and how to adapt.

Report

Storing Water for the Environment

By Sarah Null, Jeffrey Mount, Brian Gray, Kristen Dybala ...

Large reservoirs are essential for managing water in California’s highly variable climate—but over the years, the construction and operation of these reservoirs have had significant environmental costs. Our new research outlines how reservoir operations could be changed to improve the health of the state’s fragile freshwater ecosystems.

Fact Sheet

Water Use in California’s Environment

By Jeffrey Mount, Caitlin Peterson, Gokce Sencan

What exactly is “environmental water,” and how much water does California’s environment actually use? This explainer sticks to the facts—and dispels a few myths in the process.

Report

Managing Water and Farmland Transitions in the San Joaquin Valley

By Ellen Hanak, Andrew Ayres, Caitlin Peterson, Alvar Escriva-Bou ...

How can the San Joaquin Valley adapt to a future with less water? We’ve been researching this issue for the past seven years, and our new report presents highlights from we’ve learned, including a robust list of policy suggestions to help the valley weather—and make the most of—the coming changes.

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