Groundwater Sustainability Plan
The Groundwater Sustainability Plan for the Petaluma Valley Groundwater Basin (GSP) 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.
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
- Appendix 1-A: Comments Received on the Petaluma Valley Groundwater Sustainability Plan
- Appendix 1-B: Resolution Forming the Petaluma Valley Groundwater Sustainability Agency
- Appendix 1-C: Board and Advisory Committee Members
- Appendix 1-D: Advisory Committee Charter
- Appendix 1-E: Board and Advisory Committee meetings
- Appendix 1-F: Community Engagement Plan
- Appendix 1-G: Stakeholder Assessment Report
- Appendix 3-A: Water Year Type Classification for Sonoma Valley, Santa Rosa Plain and Petaluma Valley
- Appendix 3-B: Long-Term Groundwater Level Monitoring Well Hydrographs
- Appendix 3-C: Integrated Groundwater Flow Model (PVIHM); Modifications for Use in the Development of the Groundwater Sustainability Plan for the Petaluma Valley Groundwater Basin
- Appendix 3-D: Future Groundwater Demands and Land Use Changes
- Appendix 3-E: Sonoma Water Climate Assessment for Groundwater Planning
- Appendix 4-A: Hydrographs of Representative Monitoring Points
- Appendix 4-B: Definition of Drought for Sonoma County Groundwater Sustainability Plans
- Appendix 4-C: Interconnected Surface Water Practitioners Working Group Key Themes and Outcomes
- Appendix 4-D: Development of Sustainable Management Criteria for Depletion of Interconnected Surface Water by Groundwater Pumping Petaluma Valley GSP
- Appendix 5-A: Monitoring Protocols
- Appendix 5-B: Comparative Hydrographs – Chronic Lowering of Groundwater Levels Representative Monitoring Points
- Appendix 6A: Simulation of Projects and Management Actions for the Petaluma Valley Groundwater Sustainability Plan
- Appendix 6-B: Simulated Waterlevel Hydrographs from the Simulation
of Projects and Management Actions
October 2021 Draft Groundwater Sustainability Plan for the Petaluma Valley 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 Plan
Section 6 – Projects and Management Actions
Section 7 – Implementation Plan
Section 8 – References
Appendices
- Appendix 1-A: Resolution Forming the Petaluma Valley 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: Detailed Analysis of Short-Term and Seasonal Groundwater-Level Trends
- Appendix 3-D: Sonoma Water Climate Assessment for Groundwater Planning
- Appendix 4-A: Interconnected Surface Water Practitioners Working Group Key Themes And Outcomes
- Appendix 4-B: Development of Sustainable Management Criteria for Depletion of Interconnected Surface Water by Groundwater Pumping Petaluma Valley GSP
- Appendix 5-A: Monitoring Protocols
- Appendix 5-A-1: Comparative Hydrographs – Chronic Lowering of Groundwater Levels Representative Monitoring Points
- Appendix 6-A: Simulation of Projects and Management Actions for the Petaluma Valley Groundwater Sustainability Plan
- Appendix 6-B: Simulated Waterlevel Hydrographs from the Simulation of Projects and Management Actions
- Appendix 7-A: Petaluma Valley Model Maintenance and Improvements
- Appendix X: Comments Received through September 13, 2021