Long-term declines in dissolved solids in the Upper Colorado River Basin, 1929 to 2017: Exploring drivers of change with new trend analysis tools

Christine Rumsey, USGS Utah Water Science Center, Salt Lake City, UT, United States, Olivia Leigh Miller, US Geological Survey, Utah Water Science Center, Salt Lake City, UT, United States, Robert M Hirsch, USGS Headquarters, Reston, VA, United States and David Susong, USGS, Salt Lake City, UT, United States