Public Information
Aerial view looking north of the Dutch Slough Tidal Marsh Restoration Project the construction site, in the Sacramento-San Joaquin Delta near Oakley, California.
Fact Sheets, Infographics & FAQs
- Fact Sheet: Fast Facts
- Frequently Asked Questions
- Myths & Facts
- Fact Sheet: The Delta Conveyance Project in Practice
- Fact Sheet: Tribal Engagement
- Fact Sheet: Adapting to Climate Change: Catching and Moving Water from Big Storms
- Delta Conveyance Project Tool Kit
- Fact Sheet: Delta Conveyance Project Planning Process Road Map
- Delta Conveyance Project Progress Report 2019 - 2024
- Fact Sheet: Comparing the Delta Conveyance Project to Previous Conveyance Proposals
- Fact Sheet: Preliminary Design and Engineering Objectives
- Fact Sheet: Public Outreach and Engagement Overview
- Delta Conveyance Project Story Map
- Table of Contents: Delta Conveyance Project Information and Resources Available at Delta Libraries
- Q/A: Frequently Asked Questions from the Informational Webinars (covering all four webinar topics)
- Infographic: Federal and State Lead Agency Roles and Actions in the Environmental Planning and Permitting Process
- Infographic: DWR and DCA Roles and Responsibilities
Graphic Assets
- Project Map
- Planning Schedule
- Missed Opportunities (2022, 2023, 2024 & 2025)
- Declining Baseline
- Earthquake Risk
- Operations
General Videos
- January 2021 - Video: DWR Director Karla Nemeth on Why We Need to Modernize Water Infrastructure Now
- January 2020 - Video: CEQA 101 Introduction Video to the Delta Conveyance Project CEQA Process
Archived Materials
- Summer 2023 - Fact Sheet: Delta Conveyance Project Overview and Update
- November 2022 - Q/A: Frequently Asked Questions Related to the Delta Conveyance Project
- November 2021 - Overview Fact Sheet: A Proposal To Protect Water Supplies For The Future
En español
- Información sobre el valor económico del Proyecto de Agua a Través del Delta (2024)
- Datos rápidos (2024)
- Preguntas frecuentes sobre el Proyecto de transporte de agua del Delta (2024)
- Sobre el Proyecto de Agua a Través del Delta (2024)
- Descripción general del Programa de Beneficios Comunitarios (2024)
- Por qué la modernización de la infraestructura beneficiará nuestro futuro suministro de agua (septiembre de 2023)
- Descripción general del acercamiento comunitario y la participación pública (Verano de 2023)
- La manera en la que el Proyecto de Agua a Través del Delta haría que el abastecimiento de agua de California fuera más resistente a los terremotos (julio de 2023)
- Cómo la modernización de la infraestructura puede ayudar a recolectar más flujos de tormentas (abril de 2023)
- Objetivos de ingeniería y diseño preliminar (julio de 2022)
- Comparación del Proyecto de Agua a Través del Delta con proyectos de agua anteriores (julio de 2022)
繁體中文
- 有關三角洲輸水系統專案經濟價值的事實 (2024)
- 快速事實檢核 (2024)
- 三角洲輸水系統專案常見問題 (2024)
- 三角洲輸水系統專案相關迷思與事實 (2024)
- 社區福利計劃概述 (2024)
- 打造現代化的基礎設施何以對我們未來的供水有益 (2023年9月)
- Delta Conveyance 專案如何提高加州供水系統抵禦地震的能力 (2023 年7 月24 日)
- 基礎設施現代化舉措如何幫助偵測更多風暴流 (2023 年 4 月)
- Benefit Cost Analysis (May 2024)
- Cost Estimate (May 2024)
- Facts About the Economic Value of the Delta Conveyance Project (May 2024)
- FAQ: Understanding Costs, Benefits, Funding and Financing for the Delta Conveyance Project (May 2024)
- Response to Dr. Jeff Michael’s Critique of the Benefit-Cost Analysis for the Delta Conveyance Project (August 2024)
- Episode 1: What is Delta Conveyance?
- Episode 2: Why is California’s Major Water Supply at Risk?
- Episode 3: How Will the Delta Conveyance Project Protect our Water Supplies?
- Episode 4: How Much Water Could the Project Save?
- Episode 5: How would a tunnel help protect water supply in an earthquake?
- Episode 6: Why Do We Need Additional Export Facilities?
- Episode 7: How Will the Project Take Into Account the Needs of the Fish?
- Episode 8: How Do the Fish Screens Work?
- Delta Conveyance Deep Dive: Intakes and Fish Screens
- Delta Conveyance Deep Dive: Fisheries
- Delta Conveyance Deep Dive: Building the Tunnel (Part 2)
- Delta Conveyance Deep Dive: Building the Tunnel (Part 1)
- Delta Conveyance Deep Dive: Environmental Justice Community Survey
- Delta Conveyance Deep Dive: Seismic Risk (Part 1)
- Delta Conveyance Deep Dive: Seismic Risk (Part 2)
- Delta Conveyance Deep Dive: Financing the Project
- Delta Conveyance Deep Dive: Allocations (Part 1)
- Delta Conveyance Deep Dive: Allocations (Part 2)
- Delta Conveyance Deep Dive: Climate Change
- Delta Conveyance Deep Dive: State Water Project Operations
- Delta Conveyance Deep Dive: Soil Investigations
2025
- July 23: Securing Statewide Water Supplies Part 2: Serious Problems Require Serious Solutions
- July 16: Securing Statewide Water Supplies Part 1: California’s Water Future is in Jeopardy
- April 3: Delta Conveyance Project Updates
- February 25: REMINDER: Community Benefits Program Implementation Plan and Guidelines Public Review
- February 14: Delta Conveyance Project Checks Off Another Important Milestone
- February 7: DWR Issues an Official Notification of Validation Action for Delta Conveyance Program Bond Financing
- January 23: The Delta Stewardship Council Affirms that DWR’s Planned Geotechnical Investigations are not Within Their Jurisdiction and are not a Covered Action
- January 10: Validation Action Filed Regarding Financing of Approved Delta Conveyance Project
2024
- October 30: Refresher Blog: Delta Conveyance Project Tribal Outreach and Engagement
- October 25: Refresher Blog: Can Our Water Infrastructure Make the Most of Extreme Weather Events?
- October 18: Refresher Blog: Securing Safe and Affordable Water Supplies for Communities Across California
- October 11: Community Benefits Program Discussion Draft Implementation Plan and Guidelines Public Review
- October 9: Refresher Blog: The Benefits of the Delta Conveyance Project are Real and Outweigh the Costs
- October 3: Refresher Blog: The Delta Conveyance Project Protects California’s Water Supply
- September 27: 2024 – 2026 Proposed Geotechnical Activities Delta Plan Consistency
- September 24: Delta Conveyance Project Supports Communities Across California
- August 23: Operations Plan Now Available for the Delta Conveyance Project
- August 15: New DWR Report Estimates Potential Water Losses Due to Climate Crisis + Other Project Updates
- May 16: Analysis: Benefits of the Delta Conveyance Project Far Exceed Costs
- May 9: Understanding Costs, Benefits, Funding and Financing for the Delta Conveyance Project
- April 19: DWR Updates Delta Conveyance Project Schedule, Charts Permitting Pathway + Other Project Updates
- February 29: State Water Board Issues Notice Regarding Change in Point of Diversion Petition
- February 22: Change in Point of Diversion Petition Submitted to State Water Board + Other Updates
2023
- December 21: Department of Water Resources Approves Delta Conveyance Project
- December 8: Delta Conveyance Project Final EIR
- November 2: New Informational Materials
- October 23: Recent Delta Earthquakes a Reminder of Why Modernizing our Water Infrastructure is Vitally Important
- September 25: New Materials & Final Environmental Impact Report Expected Release Date
- August 3: Delta Conveyance Project Summer Updates
- May 25: Planning Process Website Launched + Project Updates
- January 31: Delta Conveyance Project New Year Updates
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January 11: REMINDER: Upcoming USACE Delta Conveyance Project Draft EIS Virtual Public Meetings
2022
- December 20: U.S. Army Corps of Engineers Issues Delta Conveyance Project Draft Environmental Impact Statement for Public Review
- December 7: How Will the Delta Conveyance Project Help Adapt to Climate Change?
- September 23: Draft EIR Comment Period Extended to December 16, 2022
- July 27: Delta Conveyance Project Draft EIR Available for Public Review and Comment Through October 27, 2022
- July 18: Delta Conveyance Project Updates
- July 11: Community Benefits Program Updates
- May 25: New Online Tool + Other Project Updates
- April 20: Big Storms and Dry Spells Demonstrate the Need for the Delta Conveyance Project
- February 4: Delta Conveyance Project Updates: Planning and New Materials
2021
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November 22: Delta Conveyance Project Updates
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September 10: REMINDER: Delta Conveyance Project Informational Webinar on Environmental Justice on September 16th
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August 18: REMINDER: Delta Conveyance Project Informational Webinar on Climate Change on August 25th
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July 28: REMINDER: Delta Conveyance Project Informational Webinar on Fisheries on August 3rd
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July 7: Delta Conveyance Project Community Benefits Program Workshops: Follow-up Items and Next Steps
- June 10: Delta Conveyance Project to Host Informational Webinars - Schedule and Topics Announced
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10 de junio: Proyecto de Agua a Tráves del Delta para Organizar Videoconferencias Informativas - Programa y Temas Anunciados
- May 28: Your Delta, Your Voice Environmental Justice Community Survey Report Now Available
- May 18: Registration Extended for Community Benefits Program Workshop 3
- May 13: Delta Conveyance Project Community Benefits Program Workshop on May 25th
- April 28: Registration Extended for Community Benefits Program Workshop
- April 21: Share Your Project Ideas with DWR on May 6th
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21 de abril: Comparta sus ideas de proyectos con DWR el 6 de mayo
- March 26: DWR Seeks to Create Economic and Social Benefit in the Delta
- March 15: Registration Now Open for Delta Conveyance Project Community Benefits Program Workshops
- 15 de marzo: Registro Ya Abierto para Talleres Sobre el Programa de Beneficios Comunitarios del Proyecto de Agua a Través del Delta
- February 19: Delta Conveyance Project Updates
- January 6: Happy New Year - Delta Conveyance Project Updates
2020
- December 7: Delta Conveyance Project Environmental Justice Community Survey Closes this Friday, December 11th
- November 16: Spread the Word! Delta Conveyance Project Environmental Justice Community Survey
- September 30: “Your Delta, Your Voice” Community Survey Launched - Take the Survey Today!
- September 1: Update on Validation Action
- August 21: Delta Conveyance Project Update
- August 6: Validation Action Filed Regarding Financing of Proposed Delta Conveyance Project
- August 4: Delta Conveyance Project Update
- July 10: Delta Conveyance Project Scoping Summary Report Now Available
- July 9: Delta Conveyance Project Environmental Planning Update
- June 18: DWR Submits Delta Conveyance Project Section 404 Permit Application to the U.S. Army Corps of Engineers
- May 4: Delta Conveyance Project Monthly Update – April/May
- April 13: Delta Conveyance Project Scoping Period Ends on April 17th at 5:00 p.m.
- March 17: Update from the Delta Conveyance Project: In Response to Ongoing Public Health and Safety Concerns
- March 13: Delta Conveyance Project Scoping Comment Period Reminder
- February 24: DCA Delta Stakeholder Engagement Committee Meeting Reminder
- February 12: Additional Scoping Meeting Scheduled for the Delta Conveyance Project
- February 10: DCA Delta Stakeholder Engagement Committee Meeting Reminder
- January 31: REMINDER: Delta Conveyance Project CEQA Scoping Meetings Begin Next Week
- January 21: DCA Delta Stakeholder Engagement Committee Meeting Reminder
- January 15: Delta Conveyance Environmental Review Initiated and Public Scoping Meetings Scheduled
- January 8: Happy New Year - Delta Conveyance Updates
2019
- December 6: DCA Delta Stakeholder Engagement Committee Meeting Reminder
- November 22: Soil Investigations IS/MND Comment Period Extended
- November 20: Soil Investigations for Data Collection in the Delta
- November 11: DCA Delta Stakeholder Engagement Committee Meeting Materials Available
- October 25: ICYMI: Delta Stakeholder Engagement Committee Members Selected
- October 9: Delta Stakeholder Engagement Committee Applications Due This Friday, October 11
- September 26: Delta Stakeholder Engagement Committee: Deadline for Applications Extended, Frequently Asked Questions Posted
- September 19: DCA Establishes New Delta Stakeholder Engagement Committee
- September 16: REMINDER: DCA Set to Vote on the Establishment of a New Delta Stakeholder Engagement Committee
- September 13: DCA Set to Discuss a New Delta Stakeholder Committee
- May 2: State Withdraws WaterFix Approvals, Initiates Planning and Permitting for a Smaller Single Tunnel
2025
- June 2025: DWR Director Letter to the Joint Legislative Audit Committee
- February 2025: Governor Newsom Letter to the State Water Resources Control Board
2024
- November 2024: DWR Director Letter to Metropolitan Water District of Southern California Interim General Manager
2023
2020
- December 2020: DWR Director Letter to State Water Contractors General Manager
- November 2020: Correspondence with Delta Counties Coalition
- May 2020: Correspondence with San Joaquin County Supervisor Kathy Miller's Office
- May 2020: Correspondence with Sacramento County Supervisor Don Nottoli’s Office
- April 2020: Correspondence with Delta Counties Coalition
- April 2020: Correspondence with Restore the Delta
- April 2020: Correspondence with Pacific Coast Federation of Fishermen’s Associations and Institute for Fisheries Resources
- April 2020: Correspondence with Delta Defenders
- March 2020:Correspondence with Congressman Garamendi
2019
- October 2019: DWR Director Letter to Senator Bill Dodd
- September 2019: CNRA Secretary Email to Delta Stakeholders
- August 2019: DWR Director Email to County Supervisors
- June 2019: JEPA Amendment June 2019
- April 2019: Governor's Water Policy Executive Order
- May 2019: DWR Director Memo to Delta Conveyance Office
- May 2019: DWR Director Letter to State Water Contractors
- May 2019: Letter from DWR to the Delta Conveyance Design and Construction Authority
- May 2019: Letter from DWR Reclamation to SWRCB - Withdrawal of Petition
- May 2019: DWR Notice to State Clearing House
- May 2019: Letter from DWR to CDFW
- May 2019: Letter from DWR to USACE
- May 2019: Rescission Document
- May 2019: Revenue Bond Rescission
- May 16, 2024 - Analysis: Benefits of the Delta Conveyance Project Far Exceed Costs
- December 21, 2023 - Department of Water Resources Approves Delta Conveyance Project
- December 8, 2023 - DWR Releases Final Environmental Impact Report for Delta Conveyance Project
- July 27, 2022 - DWR Releases Draft Environmental Impact Report for Delta Conveyance Project
- January 15, 2020 - State Initiates Environmental Review for Proposed Delta Conveyance Project, Begins Public Scoping
- May 2, 2019 - State Withdraws WaterFix Approvals, Initiates Planning and Permitting for a Smaller Single Tunnel
Design and planning soil investigations, including data collection, soil samples and surveys, are underway in the Delta. This locator map will be updated on a regular basis to provide a two-week lookahead as the work proceeds.
The California Department of Water Resources (DWR) filed a “validation action” with the Sacramento County Superior Court regarding DWR’s authority to, among other things, issue revenue bonds to finance the planning, design, construction and other capital costs of the proposed Delta Conveyance Project. Although DWR has existing legal authority to finance and construct the proposed project under the Central Valley Project Act, a validation action is necessary to provide the requisite assurance to the financial community for DWR to issue revenue bonds to raise funds for the environmental review, planning and, if approved, construction of a Delta Conveyance Project.
On January 7, 2025, DWR filed a second validation action, in parallel with its appeal of the decision issued in its previous validation action to explore all possible paths to resolve the validation question with expediency.
- Second Validation Complaint (2025)
- Summons
- Public Notice
- Background Information
- Validation Complaint (2020)
- Summons
- Public Notice
