Documents

Reports: A plethora of important material related to water supply and hydropower replacement, as well as other issues.

Fact Sheets: A good place to learn about alternatives for restoration without diving into a lot of reading. But after you start here, perhaps you will have an appetite to dive into the longer reports.

Letters: Some letters related to Hetch Hetchy that may be of interest.

Restoring Hetch Hetchy: The Cherry Solution January 2026

Water Taste test | July 2025

Water Taste Test (with appendices) | July 2025

2025 Spring | legal Basis for Visitor Improvements, Ackerson Restoration, Robel Fessehatzion Art

Yosemite’s Opportunity: Options for Replacing Hetch Hetchy Reservoir November 2022

Keeping Promises: Providing Public Access to Hetch Hetchy Valley, Yosemite National Park | April 2021

Valuing Hetch Hetchy Valley: Economic Benefits of Restoration in Yosemite National Park Executive Summary and Table of Contents | ECONorthwest, 2019

Valuing Hetch Hetchy Valley: Economic Benefits of Restoration in Yosemite National Park Executive Summary | ECONorthwest, 2019

Valuing Hetch Hetchy Valley: Economic Benefits of Restoration in Yosemite National Park Main Report | ECONorthwest, 2019

Hetch Hetchy and California Water Supply | Restore Hetch Hetchy, Updated 2018

Hetch Hetchy Valley Restoration and Hydropower in California | Restore Hetch Hetchy, updated 2018

Water and Power System Improvements Necessary to Accommodate Restoration of Hetch Hetchy ValleyRestore Hetch Hetchy, 2018

Restore Hetch Hetchy letter to the Yosemite Gateway Partners expressing “disappointment” over their praise of Hetch Hetchy Reservoir at a “sustainability” conference | November 2014

Restoration of Hetch Hetchy Valley and San Francisco’s Water Supply | Restore Hetch Hetchy, 2014

Environmental Group letter to Secretary Chrisman regarding violations of the Raker Act. | April 2012

Letter from Secretary Salazar to Congressman Lungren regarding violations of the Raker Act. | April 2012

Proposition F | Ballot Initiative in San Francisco, 2012

Letter from Congressman Lungren to Secretary Salazar regarding violations of the Raker Act. | December 2011

Beyond and Beneath O’Shaughnessy Dam: Options to Restore Hetch Hetchy valley and Replace Water and Energy Supplies | Dr. Gerald Meral, 2010

Testimony of Environmental Defense Fund | Assembly Committee on Water, Parks and Wildlife, 2006

Hetch Hetchy Restoration Study Part 2 | Department of Water Resources, 2006

Hetch Hetchy Restoration Study Part 1 | Department of Water Resources, 2006

Reassembling Hetch Hetchy Water Supply without O’Shaughnessy Dam | Sarah Null and Jay Lund, Journal of the American Water Resources Association, 2006

Tuolumne Watershed Diversions without Hetch Hetchy Reservoir: Comparison of Interties to Cherry and Don Pedro Reservoirs | Environmental Defense Fund, 2005

Finding the Way back to Hetch Hetchy Valley Part 2 | Restore Hetch Hetchy, 2005

Finding the Way back to Hetch Hetchy Valley Part 1 | Restore Hetch Hetchy, 2005

Letter from Assembleymembers Wolk and Canciamilla to Governor Schwarzenegger requesting state review of restoration potential | 2004

Letter from Secretary Chrisman to Assembleymembers Wolk and Canciamilla regarding state review of restoration | November, 2004

Paradise Regained: Solutions for Restoring Yosemite’s Hetch Hetchy Valley | Environmental Defense Fund, 2004

Hetch Hetchy Valley; A Plan for Adaptive Restoration | University of Wisconsin, 2004

Hetch Hetchy: Water and Power Replacement Concepts | U.S. Bureau of Reclamation, 1988

Alternatives for Restoration of Hetch Hetchy Valley Following Removal of the Dam and Reservoir | National Park Service, 1987

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