Scientific Chicago Chicago River Bacteria Elizabeth Brackett | February 4, 2014, 11:00 am Thanks to our sponsors: View all sponsors Thanks to our sponsors: View all sponsors Tags Chicago River Argonne National Laboratory Study Bacteria DNA Related Stories Sewage Overflows Into the Chicago River Are Rare, But New Warning System Will Alert Paddlers and Other Users When to Steer Clear Is the Chicago River St. Paddy’s Dye Job Bad for Fish? One Scientist Says They Don’t Seem to Notice Have You Seen Little ‘Blue Lobsters’ Washed Up on Chicago Beaches? Congrats, You’ve Met One of the Great Lakes Most Successful Invaders Judge Says Trump Tower Violated Environmental Regulations, Is Accountable for Harming the Chicago River and Wildlife Chicago River Swim Will Move to Lake Michigan as Organizers Aim to Build Momentum for 2025 River Event City Denies Permit for Chicago River Swim, Citing ‘Significant Safety Concerns’ Sign up for our morning newsletter to get all of our stories delivered to your mailbox each weekday. View the discussion thread. Thanks to our sponsors: