Groundwater Ambient Monitoring & Assessment (GAMA)


N. and S. American, Cosumnes, and Mokelumne River Watersheds Study Unit - Shallow Assessment

This study sampled 67 wells within the watersheds of the North and South American Rivers, Cosumnes, and Mokelumne Rivers from August 2016 to February 2017. The study unit is located primarily within El Dorado, Placer, Amador, and Calaveras Counties and includes portions of Alpine and Sacramento counties.

Click here to view the Deep Aquifer Assessment for Sierra Nevada Regional Study Unit.

Map showing location of N. and S. American, Cosumnes, and Mokelumne River Watersheds Study Unit - Shallow Assessment
Pie chart showing concentrations of constituents in the N. and S. American, Cosumnes, and Mokelumne Rivers Study areas

The study unit consists of 4 study areas:

Legend for map showing location of N. and S. American, Cosumnes, and Mokelumne Rivers Study areas
Click to access Data Series Report.
Click to access Fact Sheet
Scientific Investigations Report not available at this time.