 It's part of a broader effort to showcase the river's improved cleanliness ahead of the summer games, which kick off July 26th and will host open water swimming competitions. Daily water tests in early June indicated unsafe levels of E. coli bacteria, followed by recent improvements. Chris Edwards, NCN Sports. Bill O'Reilly's No Spin News, weekday evenings 8 to 9, W272, EKFM. Of American Energy.