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Groundwater contaminants map with Central Valley highlighted

By Water Resources Mission Area
Map of the continental US with pie charts showing proportion of groundwater with contaminants exceeding certain benchmarks with California's Central Valley aquifer highlighted
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Detailed Description

A map of groundwater aquifers in the continental U.S. showing proportion of the aquifer exceeding a human health benchmark, with California's Central Valley aquifer highlighted. 

Sources/Usage

Public Domain.

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