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California Water Science Center (CAWSC) - Groundwater Ambient Monitoring and Assessment (GAMA) Program

North San Joaquin Study Unit

The North San Joaquin Study Unit was sampled between 12/13/2004 and 2/18/2005; 67 wells were sampled.

The study unit consists of 4 study areas:

    •   Tracy Basin ; 17 well samples collected
    •   Cosumnes Basin; 10 well samples collected
    •   Eastern San Joaquin Basin; 32 well samples collected
    •   Uplands Study Area (consists of Quaternary/Pleistocene consolidated deposits); 11 well samples collected

The study unit is within the Sacramento, San Joaquin, Amador, Calaveras, Tuolumne, Contra Costa and Alameda counties.

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