Water resources data for the 2002 water year for New York consist of records of stage, discharge, and water quality of streams; stage, contents, and water quality of lakes and ponds; stage and water quality of estuaries; and water levels and water quality of ground-water wells. This volume contains records for water discharge at 15 gaging stations; lake stage at 6 gaging stations; tide stage at 5 gaging stations; and water levels at 464 observation wells. Also included are data for 10 low-flow partial record stations. Additional water data were collected at various sites not involved in the systematic data collection program, and are published as miscellaneous measurements and analyses. These data, together with the data in Volume 1 and 3 represent that part of the National Water Data system operated by the U.S. Geological Survey in cooperation with State, Federal, and other agencies in New York.