Final California Groundwater Basin Prioritization Results Are Now Available

The California Department of Water Resources (DWR) published the draft results of the prioritization of the state’s 515 groundwater basins and subbasins in January.

The basins contribute close to 40% of California’s annual water supply in an average year and as much as 45% in dry years. During extensive dry or drought years, groundwater can provide close to 60% of the water supply. Statewide, approximately 30 million people, or 80% of Californians, live in areas overlying alluvial groundwater basins. Some communities are 100% reliant on groundwater.

After holding five workshops to discuss the basin prioritization process, draft results, and accepting public comments on the draft basin prioritization results, the DWR released its final results. The final Basin Prioritization results are available on the basin prioritization page of the California Statewide Groundwater Elevation Monitoring (CASGEM) Program website and can be accessed here.

For additional information on the CASGEM Program and the CASGEM Online System, visit the CASGEM website, accessed here. For questions about the CASGEM Program, please consult one of the listed contacts accessed here.