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Yolo Subbasin Groundwater Sustainability Plan

Adopted Yolo Subbasin Groundwater Sustainability Plan

The Yolo Subbasin GSP was adopted by the Board of Directors at a Public Hearing on January 24, 2022. The GSP was submitted to the California Department of Water Resources on January 28. To review the adopted plan, please use the links below. The Plan is also available for review at the YSGA Office - contact us. 


Annual Reports 


Older Versions 

Meeting to Adopt Yolo Subbasin Groundwater Sustainability Plan

The YSGA Board of Directors will have a Special Meeting on January 24, 2022 to vote on formally adopting the Yolo Subbasin Groundwater Sustainability Plan (GSP). 

To review the documents that the Board of Directors will be voting on, click the links below, or contact us

FINAL DRAFT Yolo Subbasin Groundwater Sustainability Plan

Appendices to the GSP

Draft Groundwater Sustainability Plan (All Chapters)

The 60 day public commenting period for the Yolo Subbasin DRAFT Groundwater Sustainability Plan ended on October 27, 2021. Staff are working to incorporate the comments that were received during this period into the GSP.

For help accessing the plan or to request a print copy, please contact us. 

DRAFT Groundwater Sustainability Plan (All Chapters - No Appendices)

DRAFT Appendices to Groundwater Sustainability Plan (All Appendices) 


Projects and Management Actions - Draft and Solicitation

The YSGA is soliciting ideas for Projects and Management Actions relating to the Yolo Subbasin GSP.  To suggest an idea for a project or a management action - use this form (if you have a Google account)

Additionally, you can fill out a row in this Excel worksheet and Email it to the YSGA (


 GSP Process

At the March 2018 YSGA Board meeting, the Board adopted Resolution 2018-1 formalizing the initiation of developing the Yolo Subbasin Groundwater Sustainability Plan (GSP).  Yolo Subbasin beneficial users and interested parties are encouraged to sign up for YSGA updates and to check this website often for meetings and workshops related to the development of the GSP.

The YSGA’s formal notice of intent is also available on DWR’s SGMA portal.  Please check back here often for updates on the planning process.

Please read the Yolo Subbasin GSP Components Schematic and memos below to learn more about our Work Plan, Budget, and Schedule for developing the Yolo Subbasin GSP.

1_Water Budget Memo

2_Hydrogeologic Conceptual Model Memo

3_Stakeholder Communication and Engagement Memo

4_Groundwater Monitoring and Reporting Memo

5_Surface Water and Groundwater Modeling Memo

6_Sustainable Management Criteria Memo

Read more about what is required to be in a GSP in DWR’s GSP Emergency Regulations Guide.