The East Bay Plain (EBP) Subbasin Groundwater Sustainability Plan (GSP) is available below. To learn more about the background and intent of the plan, click here.
Draft 2027 GSP Amendment - September 2026
9/21/2026: The East Bay Plain Subbasin Draft 2027 Groundwater Sustainability Plan Amendment has been released for the 45-day Public Review Period.
To provide public comment, please fill out a Comment Form and email it to salvador.navarro@hayward-ca.gov by November 5, 2026.
- Executive Summary Draft CLEAN
- Executive Summary Draft REDLINE
- Chapter 1 Draft CLEAN
- Chapter 1 Draft REDLINE
- Chapter 2 Draft CLEAN
- Chapter 2 Draft REDLINE
- Chapter 3 Draft CLEAN
- Chapter 3 Draft REDLINE
- Chapter 4 Draft CLEAN
- Chapter 4 Draft REDLINE
- Chapter 5 Draft CLEAN
- Chapter 5 Draft REDLINE
- Appendix 1 Draft
- Appendix 2 Draft
- Appendix 3 Draft
- Appendix 4 Draft
- Appendix 6 Draft
* No Appendix 5 (Chapter 5)
GSP - January 2022
- Executive Summary
- Chapters 1 – 5
- Appendix 1 (Chapter 1)
- Appendix 2 (Chapter 2)
- Appendix 3 (Chapter 3)
- Appendix 4 (Chapter 4)
- Appendix 6
* No Appendix 5 (Chapter 5)

