welcome back to cnn newsroom. i'm george howell. we are 17 months away from the 2016 summer olympics but questions remain whether rj religion will be ready for the big event. there is the problem of violence and crime and the city's sewage system and transportation infrastructure. cnn's shasta darlington has the story. >> reporter: lush waterways with tropical birds. what could lurk here? we quickly find out as we catch a ride with this biologist. not all of the birds are so chirpy. over in baja there are a series of lagoons that back up to the park. you can see the garage and a terrible stench of open sewage. people staying nearby at the athlete's village could take notice. he says the problem isn't new. the city has grown a lot in the last 50 years and sewage infrastructure didn't grow with