Introduction
California Department of Water Resources Groundwater accounts for between 40-60% of California’s water supply and is heavily relied upon in dry years. Despite its importance to the state’s water supply, groundwater remained largely unregulated until passage of the Sustainable Groundwater Management Act (SGMA) in 2014. Passage of SGMA requires local agencies to collect information about the health of their groundwater basins and use that information to develop groundwater sustainability plans to achieve groundwater sustainability.
What does this project focus on?
In partnership with the Department of Water Resources (DWR), State Water Resources Control Board (SWRCB), and Environmental Defense Fund (EDF), this project is advancing two key elements to support local agencies developing groundwater sustainability plans under SGMA:
- Expansion of the open-source Groundwater Accounting Platform. Learn more about the Groundwater Accounting Platform by watching a demo.
2. Co-development of data reporting formats and best management practices for their implementation.

