Groundwater Ambient Monitoring & Assessment (GAMA)


Sacramento-Metro Study Unit - Shallow Assessment

The Sacramento-Metro Study Unit includes three study areas: North American, South American, and Cosumnes. The North and South American study areas are subbasins of the Sacramento Valley Groundwater Basin and the Cosumnes study area is a subbasin of the San Joaquin Valley Groundwater Basin. The USGS sampled 49 wells for this study in 2017.

Click here to view the Deep Aquifer Assessment for the Northern San Joaquin Study.

Click here to view the Deep Aquifer Assessment for the Southern Sacramento Study.

Map showing location of Sacramento-Metro Study Unit - Shallow Assessment
Pie chart showing concentrations of constituents in the Sacramento-Metro Study Unit

The study unit consists of 3 study areas:

Legend for map showing location of Sacramento-Metro Study Unit
Click to access Data Series Report
Click to access Fact Sheet
Scientific Investigations Report not available at this time.