Water-quality data in the Arkansas River mainstem and the Verdigris, Neosho, and Illinois River basins within Oklahoma, through 1978, were examined for water type and suitability for public water supply and for irrigation use. Of 147 stations with available data, 68 stations or 46 percent were considered to have sufficient data for analysis. The classification of water type was based on the relation of the major ions: calcium, magnesium, sodium, carbonate, bicarbonate, sulfate, and chloride to each other within the range of measured specific conductance. The suitability for use as a public supply was based on the concentration distribution of selected constituents. The constituents selected were those with maximum contaminant levels established by regulation, or constituents for which recommended maximum limits have been established and for which historic data are available. The irrigation classification method of Wilcox was used to relate sodium, calcium, and magnesium concentrations and the salinity distribution to the use of the water for irrigation. Where data were available, the chance of phytotoxic effects by boron was discussed.
Additional publication details
USGS Numbered Series
Water type and suitability of Oklahoma surface waters for public supply and irrigation; Part I, Arkansas river mainstem and Verdigris Neosho, and Illinois river basins through 1978