Water resources data for the 1988 water year for Hawaii and other Pacific Areas consist of records of stage, discharge, and water quality of streams and springs; and water levels and water quality in wells. This report, volume 1, contains discharge records for 82 gaging stations; water quality for 14 gaging stations, 54 partial-record flow stations, and 148 wells; and water levels for 37 observations wells. Also included are 107 crest-stage partial record stations, 25 miscellaneous partial-record sites, and 8 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, Federal, and other agencies in Hawaii.