The regulatory requirements set forth in the three-bill legislative package consisting of Assembly Bill (AB) 1739 (Dickinson), Senate Bill (SB) 1168 (Pavley), and SB 1319 (Pavley), collectively known as the Sustainable Groundwater Management Act (SGMA). SGMA defines sustainable groundwater management as “management and use of groundwater in a manner that can be maintained during the planning and implementation horizon without causing undesirable results”, which are defined by SGMA as any of the following effects caused by groundwater conditions occurring throughout the basin (CA DWR, 2018):

  • Chronic lowering of groundwater levels indicating a significant and unreasonable depletion of supply if continued over the planning and implementation horizon
  • Significant and unreasonable reduction of groundwater storage
  • Significant and unreasonable seawater intrusion
  • Significant and unreasonable degraded water quality, including the migration of contaminant plumes that impair water supplies
  • Significant and unreasonable land subsidence that substantially interferes with surface land uses
  • Depletions of interconnected surface water that have significant and unreasonable adverse impacts on beneficial uses of the surface water

The Eastern San Joaquin Groundwater Subbasin (Eastern San Joaquin Subbasin or Subbasin) has been identified by the Department of Water Resources (DWR) as critically overdrafted. The Eastern San Joaquin Groundwater Sustainability Plan (Eastern San Joaquin GSP, GSP, or the Plan) has been developed to meet SGMA regulatory. The Eastern San Joaquin GSP provides a path to achieve and document sustainable groundwater management within 20 years following Plan adoption, promoting the long-term sustainability of locally-managed groundwater resources now and into the future.


To request a new surface water diversion, click here.


A Groundwater Sustainability Agency is one or more local governmental agencies that implement the provisions of SGMA. A local agency is defined as one that has water supply, water management or land management authority. GSAs assess the conditions of their local basins, adopt locally-based sustainable management plans to create drought resiliency and improve coordination between land use and groundwater planning.

The Eastern San Joaquin Groundwater Authority has created a map of the GSAs. This GIS Map Application showing all GSAs can be viewed by clicking here.

To view the Eastern San Joaquin Groundwater Sustainability Plan click here.

Additional information regarding the GSP has been posted on the ESJ GWA website, which can be accessed here.

The California Farm Bureau Federation developed this resource for farmers and landowners to help you understand why the Sustainable Groundwater Management Act (SGMA) is important and how you can be involved! Click here to view the full brochure.

You can access information regarding Sustainable Groundwater Management Informational Meetings by clicking on an image below.

SGMA Stakeholder Notification List

    If you are interested in receiving SGMA updates, please provide your information below.