GROUND WATER ATLAS of the UNITED STATES
Iowa, Michigan, Minnesota, Wisconsin
HA 730-J
Mississippian aquifer
There are two different files for each illustration
- A 90 ppi JPEG file, suitable for screen viewing is accessed
through the thumbnail image.
- A tiff file is accessed through the "tiff file"
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Ground-water Quality
Figure 67 Map showing dissolved solids concentrations in water
from the Mississippian aquifer in Iowa (225K)
downloadable tiff file J067.tif.gz (1.8MB
compressed)
Figure 68 Map showing hardness in water from the
Mississippian aquifer in Iowa (204K)
downloadable tiff file J068.tif.gz (1.8MB
compressed)
Figure 69 Map showing sulfate concentrations in
water from the Mississippian aquifer in Iowa (332K)
downloadable tiff file J069.tif.gz (3.2MB
compressed)
Figure 70 Graph showing chemical constituents in
water from the Mississippian aquifer in Michigan (115K)
downloadable tiff file J070.tif.gz (1.1MB
compressed)
Figure 71 Map showing dissolved solids concentrations
in water from the Mississippian aquifer in Michigan (196K)
downloadable tiff file J071.tif.gz (1.7MB
compressed)
downloadable tiff file J067.tif.gz (1.8MB
compressed) 
downloadable tiff file J068.tif.gz (1.8MB
compressed) 
downloadable tiff file J069.tif.gz (3.2MB
compressed) 
downloadable tiff file J070.tif.gz (1.1MB
compressed) 
downloadable tiff file J071.tif.gz (1.7MB
compressed)