On September 16, 2010, New York City and its outer boroughs were hit with a severe thunderstorm that resulted in at least 1 tornado touching down in Brooklyn. The damage was pretty extensive in some areas causing downed trees, ruined cars, and ruined sidewalks.

But until now, very few knew that the storm probably caused some raw sewage to spill into the already polluted Gowanus Canal. If you thought the Gowanus wasn’t polluted enough, wait until you see the hard line between the water and the raw sewage in the video above. Looks like the Gowanus Canal’s Superfund status is appropriate.