Ah nice, read WCTV.tv
CDC researchers collected water samples from filters at 160 public pools, booth indoor and outdoor, located in the metro-Atlanta area. They found “poop” in nearly 60 percent of the pools, with tests revealing 58 percent of the water samples were positive for the bacteria Escherichia coli, or E. coli. […]
The high percentage of E. coli contamination suggests some swimmers may be having a “fecal incident” in the water, the CDC said, or that some people simply aren’t showering themselves thoroughly enough before they enter the pool.