GROUND WATER ATLAS of the UNITED STATES
Introduction and National Summary


Sandstone and carbonate-rock aquifers


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Sandstone and carbonate-rock aquifers

Figure 38 Cross section showing the movement of water through the unconfined and confined parts of the limestone aquifers that underlie the Pennyroyal Plain and Mammoth Cave Plateau (36K)
editable eps file A038.eps.gz (168K compressed)


Figure 39 Graphs comparing the recharge rate of wells completed in sandstone and carbonate-rock aquifers (24K)
editable eps file A039.eps.gz (16K compressed)

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