Kalamazoo River oil spill

John Bolenbaugh said Enbridge ordered a subcontractor to fire him in 2010

The estimate is included in new documents filed with the federal Securities and Exchange Commission.

The public has until Oct. 27 to comment on the report.

The case is the first to go to trial since a ruptured pipeline caused a massive oil spill on the Kalamazoo River in 2010

About 30 cases have been filed against company related to 2010 oil spill, more than 20 have been settled