VANCOUVER - The National Energy Board has asked Calgary-based Enbridge (TSX:ENB) to provide documentation of improvements its made since a massive oil spill in Michigan two years ago.
Board inspectors visited the company's control centre a week ago, as part of an increase in inspections the board announced following a damning report by U.S. authorities on the spill in the Kalamazoo River two years ago.
In a letter sent Friday, the board asks for a copy of Enbridge's internal investigation into the pipeline rupture and documentation of the corrective actions it has taken.
The board also wants to know what improvements have been made to the company's in-line inspection program since the incident and it wants a copy of the control room management plan.
The investigation by the U.S. National Transportation Safety Board found a litany of errors in the Edmonton control centre that led to spill of more than 20,000 barrels of oil.
The company's proposed Northern Gateway pipeline from the Alberta oil sands to a tanker port on the B.C. coast is currently under review by a federal environmental assessment panel.