Water resources data for the 1975 water year for Kansas consists of records of stage, discharge, and water quality of streams; stage, contents, and water quality of lakes and reservoirs; and water levels and water quality in wells. This report contains discharge records for 143 gaging stations; stage and contents for 20 lakes and reservoirs; water quality for 69 gaging stations; and water levels for 11 obser-vation wells. Also included are data for 125 crest-stage partial-record stations and 23 low-flow partial-record stations. These data represent that part of the National Water Data System operated by the U.S. Geological Survey and cooperating State and Federal agencies in Kansas.