Santa Ynez River Valley Groundwater Basin

Western Management Area (WMA) Groundwater Sustainability Agency (GSA)

Learn more about or download the Public Draft WMA GSP, dated September 2021

Governance and Funding Proposals for the Santa Ynez River Groundwater Basin

WMA GSA - Groundwater Sustainability Plan (GSP) Documents

Open links to view or download documents.

PUBLIC COMMENT PERIOD CURRENTLY OPEN FOR:

• No documents at this time.

WMA Comment Form

 DRAFT DOCUMENTS - PUBLIC COMMENT PERIOD CLOSED

• Public Draft WMA GSP, dated September 2021

• WMA Monitoring Network and Sustainable Management Criteria (SMC) DRAFT (July 1, 2021)

• WMA-CMA Numerical Model DRAFT Technical Memo (May 19, 2021)
• WMA-CMA Numerical Model - Figures DRAFT (May 19, 2021)
• WMA-CMA Numerical Model - Attachments DRAFT (May 19, 2021)

• WMA Water Budget Technical Memo DRAFT (April 2021)
• WMA Water Budget - Figures DRAFT (April 2021)

• WMA Groundwater Conditions Technical Memo (GCTM) DRAFT (Feb. 2021)
• WMA GCTM - Figures DRAFT (Feb. 2021)
• WMA GCTM - Appendix A: Hydrographs (Feb. 2021)
• WMA GCTM - Appendix B: Land Subsidence (Feb. 2021)

• WMA Hydrogeologic Conceptual Model (HCM) DRAFT (Oct. 2020)
• WMA HCM - Appendix A:  DRAFT Tech Memo (Oct. 2020)
• WMA HCM - Figures DRAFT (Oct. 2020)

• WMA Data Management Plan - DRAFT FINAL (Feb. 2020)

• WMA Public Outreach and Engagement Plan - DRAFT FINAL (Feb. 2020)

WMA GSA Status Update & PRESENTATIONS

• October 27, 2021 Review of WMA Draft Groundwater Sustainability Plan
• August 25, 2021 Governance and Funding Proposals for Basin
• August 25, 2021 Overview of WMA Draft Groundwater Sustainabilty Plan
• July 28, 2021 Projects & Management Actions and Implementation of the GSP for the WMA
• May 26, 2021 Sustainable Management Criteria and Projects & Management Actions for the WMA
• May 12, 2021 Sustainable Management Criteria for the WMA
• April 28, 2021 Status Update and WMA Stakeholder Workshop regarding Numerical Groundwater Model and Model Documentation
• April 14, 2021 Status Update and WMA Stakeholder Workshop regarding Water Budget and Sustainable Preliminary Determination and Discussion
• February 2021 Status Update and WMA Stakeholder Workshop regarding Water Budget
• January 2021 Status Update and WMA Stakeholder Workshop regarding Groundwater Conditions, Water Budget, Groundwater Model and Sustainable Management Criteria Thresholds
• November 2020 Status Update and WMA Groundwater Conditions Workshop Presentation
• October 2020 Status Update and WMA HCM Workshop Presentation
• August 2020 Status Update
• May 2020 Status Update
• February 2020 Status Update

WMA GSA Committee

The WMA GSA Committee regularly meets once per quarter on either the 3rd or 4th Wednesday of the 2nd month of each quarter (February, May, August and November) at 10:00 am at the Lompoc Water Treatment Plant.  Visit the calendar for up-to-date information.

What agencies are involved in SGMA activities in the Western Management Area of the Santa Ynez River Valley Basin?

• City of Lompoc
• Vandenberg Village Community Services District
• Mission Hills Community Services District
• Santa Ynez River Water Conservation District
• County of Santa Barbara