This report contains water-quality data for aquifers, streams, and lakes in the vicinity of Keechi, Mount Sylvan, Oakwood, and Palestine Salt Domes, in the northeast Texas salt-dome basin. Water-quality data were compiled for aquifers in the Wilcox Group, the Carrizo Sand, and the Queen City Sand. The data include analyses for dissolved solids, pH, temperature, hardness, calcium, magnesium, sodium, bicarbonate, chloride, and sulfate. Water-quality and streamflow data were obtained from 63 surface-water sites in the vicinity of the domes. These data include water discharge, specific conductance, pH, water temperature, and dissolved oxygen. Samples were collected at selected sites for analysis of principal and selected minor dissolved constituents. PURPOSE AND SCOPE OF THIS REPORT This report was prepared in cooperation with the U.S. Department of Energy in conjunction with other studies designed to determine the feasibility of using salt domes in the northeast Texas salt-dome basin for the terminal storage of nuclear wastes. The purpose of this report is to present v/ater-quality data for aquifers, streams, and lakes in the vicinity of Keechi, Mount Sylvan, Oakwood, and Palestine Salt Domes. Water samples from freshwater aquifers were collected from the Wilcox Group of Pal eocene and Eocene age in 21 counties, from the Carrizo Sand of Eocene age in 15 counties, and from the Queen City Sand of Eocene age in 14 counties. These groundwater samples were analyzed for dissolved solids, pH, temperature, hardness, calcium, magnesium, sodium, bicarbonate, chloride, and sulfate. The data are presented in tables 1-3. SUMMARY OF CHEMICAL ANALYSES OF GROUNDWATER SAMPLES-11-Table 1.-Summary of chemical analyses of water from the Wilcox Group Dissolved solids, residue on evaporation (ROE) at 180 C Area Maximum (milligrams per liter) Upper quart ile 1 Median 2 Lower quart ile 3 Minimum No. of samples
