the US has less unsalty groundwater left than thought
Economic Charts, Graphs, and Maps 2019
saltiness of the remaining US groundwater
Depth to water with total dissolved solids (a) <3000 and (b) <10 000 mg l?1 based on median values in 100 m bins. (c) TDS distribution relative to the 50th and 95th percentile of water well depths.
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