Groundwater provides more than 40 percent of California's drinking water. To protect this vital resource, the State of California created the Groundwater Ambient Monitoring and Assessment (GAMA) Program. The Priority Basin Project of the GAMA Program provides a comprehensive assessment of the State's groundwater quality and increases public access to groundwater-quality information. The San Fernando and San Gabriel groundwater basins constitute one of the study units being evaluated.
Additional publication details
USGS Numbered Series
Groundwater quality in the San Fernando--San Gabriel groundwater basins, California
U.S. Geological Survey
California Water Science Center
San Fernando Groundwater Basin;San Gabriel Groundwater Basin