Cumulative Depletion of Groundwater from the Central Valley, 1920-2008

Central Valley aquifers lost 140 cubic kilometers of freshwater – an amount roughly four and a half times the capacity of Lake Mead in Nevada, the nation’s largest reservoir.

140 Cubic Kilometers Cumulative Depletion
Source: NOAA

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A series of articles exploring the use and management of California’s precious resource.