GROUND WATER ATLAS of the UNITED STATES
Iowa, Michigan, Minnesota, Wisconsin
HA 730-J
Silurian-Devonian aquifer
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Fresh Ground-water Withdrawals
Figure 90 Pie charts showing principal uses of fresh ground-water
withdrawals from the Silurian-Devonian aquifer (253K)
downloadable tiff file J090.tif.gz (2.4MB
compressed)
downloadable tiff file J090.tif.gz (2.4MB
compressed)