AdvertisementTesting By AP Finds Water At 2016 Olympic Sites 'Rife With Human Sewage'July 30, 2015Eyder PeraltafacebookEmailThe Rodrigo de Freitas lake, which was largely cleaned up in recent years, was thought to be safe for Olympic rowers and canoeists. But an investigation by The Associated Press found it to be among the most polluted sites. (AP)