 It's not a lucky third time for the Anacostia River Splash. This afternoon's scheduled event to let D.C. residents legally swim in the Anacostia was postponed again. Riverkeeper Trey Sherrard tells NBC4. That little storm came through Wednesday night. We didn't think that would cause us any problems. There were no documented sewage overflows. So on Thursday morning, I was actually in the water to install the swim ladders that are behind us.