 But looking ahead, Williams sees much more will have to happen, including continued efforts to get rid of trash in the river, along with pollutants. Williams has forwarded his concerns to the D.C. Department of Energy and the Environment for long-term progress on a cleaner, greener Anacostia. Kate Ryan, WTOP News. Still to come tonight on WTOP, we'll look at the first half of trading on Wall Street, and at least for some investors, it's reason to celebrate. Stay with us at 11.08.