In 2010, Enbridge's Line 6B near Talmadge Creek split open. For the next FOUR years, residents along Talmadge Creek and the Kalamazoo River between Marshall MI and Lake Michigan were to learn far more about oil pipelines and diluted bitumen than they ever wanted to know!
Below are some of the more interesting links I found. You can Google "enbridge 2010 kalamazoo oil spill" if you have a free afternoon!
http://michiganradio.org/term/kalamazoo-river-oil-spill (2014 update on the 2010 spill)
http://www.freep.com/article/20130623/NEWS06/306230059/Kalamazoo-River-oil-spill (This is Part 1 of a 2 part article)
http://www.freep.com/article/20130624/NEWS06/306240014/Kalamazoo-River-controversy-over-Enbridge-Line-6B-oil-pipeline (This is Part 2 of a 2 part article)
http://insideclimatenews.org/news/20120626/dilbit-diluted-bitumen-enbridge-kalamazoo-river-marshall-michigan-oil-spill-6b-pipeline-epa If you only read ONE report about this spill - READ THIS!!!!!!!!!