Water-resources data for the 2001 water year for North Carolina consist of records of stage, discharge, water-quality for streams; stage and contents for lakes and reservoirs; precipitation; and ground water levels and water-quality of ground-water. Volume 1 contains discharge records for 209 gaging stations; stage and contents for 62 lakes and reservoirs; stage for 52 gaging stations; water quality for 101 gaging stations and 91 miscellaneous sites; continuous daily tide stage at 4 sites; and continuous precipitation at 98 sites. Volume 2 contains ground-water-level data from 136 observation wells and ground-water-quality data from 68 wells. Additional water data were collected at 84 sites not involved in the systematic data-collection program, and are published as miscellaneous measurements in Volume 1. The collection of water-resources data in North Carolina is a part of the National Water-Data System operated by the U.S. Geological Survey in cooperation with State, municipal, and Federal agencies.