A study of the relationship of stream discharge, conductivity, and pH with uranium concentration in surface waters has been made for various locations in the United States utilizing data collected, for the most part, by the U.S. Geological Survey (USGS). The results of the study are portrayed by the scatter diagrams in this report. The diagrams display (1) the variability of uranium content in surface waters across the United States; (2) the variability of uranium concentration, discharge, conductivity, and pH in one stream over a period of time; and (3) the correlation of discharge, conductivity, or pH with uranium concentration for different parts of the country.