Engberg, R. A. 1984. Appraisal of the Data for Ground-Water Quality in Nebraska (WSP-2245). 54 pp., size 8.5" x 11". Description: This report summarizes existing (1984) data for groundwater quality in Nebraska and indicates their adequacy as a data base. Those analyses that meet reliability criteria have been aggregated by geologic source of water into four principal aquifer groupings: Holocene-Pleistocene aquifers, Tertiary aquifers, Mesozoic aquifers, and Paleozoic aquifers.