Lionel D. Mize Ambrose J. Madaj Dannie E. Spiser Robert L. Goemaat 1986 During the 1984-85 climatic years, the U.S. Geological Survey, in cooperation with the Oklahoma Water Resources, collected ground-water level data in Oklahoma from 1,018 sites in 76 of the State's 77 counties. This report is a compilation of all available data through March 1985 for each well currently in the network. Some of the data were collected as early as 1937. application/pdf 10.3133/ofr86314 en Ground-water levels in observation wells in Oklahoma, period of record to March 1985 reports