The Enbridge Lakehead Pipeline 6B which runs through Michigan was shut down May 29 when storm related power outages shut down the Marshall pumping station.
Bloomberg reports the line was restarted May 30 after Consumer’s Energy was able to restore power to the pumping station. The restart was done at lower rates than the system is currently approved to run.
That lower rate for normal operations is the result of hundreds of anomalies which have been identified on the line. Those anomalies have been the subject of hearings in Washington, as well as stricter reviews by the Pipeline Hazardous Materials Safety Administration (PHMSA). PHMSA approved the restart of the line in September following the July 25 rupture of the line in Marshall.
The July 25 rupture lead to an estimated one million gallons of crude oil spewing out of the pipeline and into Talmadge Creek and the Kalamazoo River.
As the line was running in late 2010, Enbridge was working on identifying the extent of potential weaknesses in the line. That program resulted in a November shut down because of anomalies discovered in Stockbridge, a rural Ingham county community.
Environmental Protection Agency (EPA) officials told Michigan Messenger earlier this week that clean up operations and assessments had been ceased as of late last week because of a series of severe storms hammering the area, causing the waterways to be at high flood stages, and creating safety concerns with fallen trees.