Groundwater Sustainability Plan

The Groundwater Sustainability Plan (GSP) for the Santa Rosa Plain Subbasin was submitted to the California Department of Water Resources (DWR) in January, 2022 and approved by DWR on January 26, 2023. The GSP establishes a standard for sustainability of groundwater management and use, and determines how the basin will achieve this standard by 2042. The GSP and the letter of determination from DWR can be viewed below: 

 

DWR Letter of Determination (approving the GSP and including recommended corrective actions)

Groundwater Sustainability Plan for the Santa Rosa Plain Subbasin – PDF (217 MB)

Individual Sections and Appendices

Cover, Acknowledgements, Glossary, Abbreviations and Acronyms
Executive Summary
Table of Contents
Section 1 – Introduction
Section 2 – Plan Area
Section 3 – Basin Setting
Section 4 – Sustainable Management Criteria
Section 5 – Monitoring Plan
Section 6 – Projects and Management Actions
Section 7 – Implementation Plan
Section 8 – References

 

Appendices

October 2021 Draft Groundwater Sustainability Plan for the Santa Rosa Plain Groundwater Subbasin

Acknowledgements
Acronyms and Abbreviations
Table of Contents
Executive Summary
Section 1 – Introduction
Section 2 – Plan Area
Section 3 – Basin Setting
Section 4 – Sustainable Management Criteria
Section 5 – Monitoring Network
Section 6 – Projects and Management Actions
Section 7 – Implementation Plan
Section 8 – References

Appendices

• Appendix 1-A: Resolution Forming the Santa Rosa Plain Groundwater Sustainability Agency
• Appendix 1-B: Board and Advisory Committee Members
• Appendix 1-C: Advisory Committee Charter
• Appendix 1-D: Board and Advisory Committee meetings
• Appendix 1-E: Community Engagement Plan
• Appendix 1-F: Stakeholder Assessment Report
• Appendix 3-A: Water Year Type Classification for Sonoma Valley, Santa Rosa Plain, and Petaluma Valley
• Appendix 3-B: Groundwater Monitoring Well Hydrographs
• Appendix 3-C: Santa Rosa Plain Hydrologic Model (SRPHM) Updates
• Appendix 3-D: Future Groundwater Demands and Land Use Changes
• Appendix 3-E. Selection of Global Circulation Model for Climate Change Projections
• Appendix 4-A: Hydrographs of Representative Monitoring Points
• Appendix 4-B: Interconnected Surface Water Practitioners Working Group Key Themes And Outcomes
• Appendix 4-C: Development of Sustainable Management Criteria for Depletion of Interconnected Surface Water by Groundwater Pumping Santa Rosa Plain GSP
• Appendix 5-A: Monitoring Protocols
• Appendix 5-B: Comparative Hydrographs – Chronic Lowering of Groundwater Levels Representative Monitoring Points
• Appendix 6-A: Simulation of Projects and Management Actions for the Santa Rosa Plain Groundwater Sustainability Plan
• Appendix 6B: Simulated Waterlevel Hydrographs from the Simulation of Projects and Management Actions
• Appendix 7-A: Santa Rosa Plain Model Maintenance and Improvements
• Appendix X: Comments Received