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" link. All files are Adobe Photoshop. These files have been compressed with GNU's gzip utility. If your web browser defaults to a screen display of the file, turn on the "Load to local disk" option before downloading. Download and process these tiff files as ascii, not binary.


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)


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