Water-resources data for the 2001 water year for Ohio consist of records of stage, discharge, and water quality of streams; stage
and contents of lakes and reservoirs; and water levels and water quality of ground-water wells. This report, in two volumes,
contains records for water discharge at 130 gaging stations and 65 partial-record sites; water levels at 160 observation wells and
25 crest-stage gages; and water quality at 25 gaging stations, 31 observation wells, and 9 partial-record sites. Also included are
data from miscellaneous and synoptic sites. 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 represent that part of the
National Water Information System collected by the U.S. Geological Survey and cooperating Federal, State, and local agencies
in Ohio.