A summary is presented of selected water quality data collected from 1976 to 1984 at 75 surface water sites and 28 test wells in the Warrior coal field in northwestern Alabama. The minimum, maximum, mean or median, standard deviation, and number of determinations are given for each site for discharge, pH, alkalinity, specific conductance, hardness, dissolved and suspended solids, sulfate, and total and dissolved iron and manganese. Twelve quadrangles are included in the report showing the location of each site. (USGS)