Five years ago, on July 25, 2010, an Enbridge Energy pipeline burst, causing the biggest inland oil spill in U.S. history.
One of the rumors you can still hear about the incident is that the company must have dumped a surfactant into the Kalamazoo River to help break up the oil. The chemical is called corexit, and it can be harmful to humans.
Regulators and Enbridge deny corexit was ever used for the Kalamazoo spill. But that hasn’t put the rumor to rest.