I am on the 'hooch - I know what it looks like. It's not trashy up here like your photo, and the e.coli reads much lower at Johns Creek than at Paces Ferry - I'm obviously up at Johns Creek. Chattahoochee River BacteriALERT (Home page)
it's nasty where I live, which is s75 inside 285 by six flags..
Floods all the time here when hard rain hits!
Hell go to six flags and see the floating debris containment or stop off i20