Ground-Water Data for Michigan - 1979
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Data on the yield of wells, pumpage, quality of water, and trends of ground-water levels for the past 5 years are shown in the text. Many hydrographs are included to illustrate natural changes in water levels. Also included are data on municipal water-supply sources. Tables 1, 2, and 3 contain records of water levels in observation wells, records of pumpage by most major ground-water users, and water quality data from selected wells sampled during 1979. Figure 1 shows distribution of observation wells.