Water resources data for the 2005 water year for Eastern New York Excluding Long Island consist of records of stage, discharge, and water quality of streams; stage, contents, and water quality of lakes and reservoirs; and ground-water levels. This volume contains records for water discharge at 145 gaging stations; stage only at 8 gaging stations; stage and contents at 6 gaging stations, and 11 other lakes and reservoirs; water quality at 29 gaging stations and 37 other sites; and water levels at 30 observation wells. Also included are data for 34 crest-stage partial-record stations and 50 miscellaneous-measurement sites. These data together with the data in volumes 2 and 3 represent that part of the National Water Data System operated by the U.S. Geological Survey in cooperation with State, Municipal, and Federal agencies in New York.