GROUND WATER ATLAS of the UNITED STATES
Illinois, Indiana, Kentucky, Ohio, Tennessee
HA 730-K
Interior Low Plateaus aquifers
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Devonian, Silurian, and Ordovician aquifers
Hydrogeologic setting
Figure 94 Map of Devonian, Silurian, and Ordovician aquifers (50K)
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Figure 95 Correlation chart (33K)
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Table 3 Table showing wells that obtain
fresh ground water from carbonate rocks (17K)
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Figure 96 Cross section of Silurian
and Ordovician rocks that contain freshwater (17K)
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Figure 97 Cross section showing the
direction of ground-water movement (17K)
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Yields of wells and discharges of springs
Table 4 Table showing yields of wells completed in the limestone
and dolomite aquifers in ordovician rocks (17K)
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Figure 98 Graph and map comparing
the discharge of four large springs (33K)
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Ground-water quality
Figure 99 Water quality graph (17K)
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Figure 100 Water quality chart for Ordovician aquifers in Kentucky
(33K)
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Fresh ground-water withdrawals
Figure 101 Chart showing the use of fresh ground-water withdrawals
during 1985 (17K)
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