Water resources data for the 1993 water year for Michigan consists of records of stage, discharge, and water quality of streams; stage and contents of lakes and reservoirs; and ground water levels. This report contains discharge records for 148 streamflowgaging stations; stage only records for 2 river-gaging stations and 7 lake-gaging stations; stage and contents for 4 lakes and reservoirs; water-quality records for 19 streamflow-gaging stations; water-level records for 43 ground-water wells. Also included are 33 crest-stage partial-record stations and 2 low-flow partial-record stations. Additional water data were collected at various sites not involved in the systematic data-collection program. Miscellaneous data were collected at 44 measuring sites. These data represent that part of the National Water Data System collected by the U.S. Geological Survey and cooperating State, local, and Federal agencies in Michigan.