If you go to the Confluence on any given hot day, you may see people wading into the water. The city doesn’t recommend it, but there's no firm ban that’s enforced. Alan Vajda, Associate Professor of Integrative Biology, who has done academic research on the South Platte going back to 2001, said lots of work is going on to improve the ecosystem and mitigate contamination, but, "It's just a question of whether the resources are there to keep up with the growing challenges of population and climate change."
Swimming in the South Platte River: Still not a good idea!
Denverite, May 31