Big Valley Groundwater Sustainability Plan

Big Valley GSP Meeting Documentation 

In 2014, California passed the Sustainable Groundwater Management Act (SGMA) (AB1739, SB 1168, SB 1319), authorizing local groundwater sustainability agencies (GSAs) to develop groundwater sustainability plans (GSPs) for a subset of California’s alluvial aquifers. To comply with SGMA, GSAs of "Critically-Overdrafted, High-Priority, and Medium-Priority Basins" must achieve sustainable groundwater management, defined by SGMA as the avoidance of locally-defined undesirable results. To achieve sustainability, GSAs must develop and implement effective groundwater management plans that consider the interests of all beneficial uses and users of groundwater, including environmental users of groundwater. [Water Code § 10723.2.]

Big Valley GSP Draft Chapters 

Please find below the draft chapters of the Big Valley Groundwater Sustainability Plan. Chapters will be added as they are developed. If you have comments, please email them to [email protected] and put "Big Valley GSP" in the subject line. When applicable, please include the line number(s) that relate to your feedback.

  • UPCOMING: 2.2.1 Hydrogeologic Conceptual Model
NOTE: GSP Draft Sections are available for public review intermittently. 

BV Prioritization



Please watch the videos below to catch up on Big Valley Basin and the GSP:

Public Meeting March 10, 2021

Public Meeting March 11, 2021

Public Meeting August 19, 2021


If you would like to receive periodic email updates regarding the Big Valley Groundwater Sustainability Agency and its activities, please complete and submit our Stay Connected form to be added to the Lake County SGMA mailing list.