NTSB: Neglect, inaction caused huge Mich. spill
by John Flesher, Associated Press and David Runk, Associated Press
July 10, 2012 01:50 PM | 732 views | 0 0 comments | 5 5 recommendations | email to a friend | print
National Transportation Safety Board (NTSB) Chair Deborah Hersman listens to testimony in Washington Tuesday, July 10, 2012, during a NTSB meeting to determine a cause of a pipeline rupture in 2010 that dumped more than 800,000 gallons of oil into a southwestern Michigan river. (AP Photo/Manuel Balce Ceneta)
National Transportation Safety Board (NTSB) Chair Deborah Hersman listens to testimony in Washington Tuesday, July 10, 2012, during a NTSB meeting to determine a cause of a pipeline rupture in 2010 that dumped more than 800,000 gallons of oil into a southwestern Michigan river. (AP Photo/Manuel Balce Ceneta)
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Michigan Oil Spill Slideshow
In this July 29, 2012 file photo, a worker monitors the water in Talmadge Creek in Marshall Township, Mich., near the Kalamazoo River as oil from a ruptured pipeline, owned by Enbridge Inc, is vacuumed out the water. Federal investigators are expected to present their findings Tuesday, July 10, 2012 on the likely cause of a pipeline rupture that spilled more than 800,000 gallons of crude oil into the river nearly two years ago. (AP Photo/Paul Sancya, File)
view slideshow (5 images)
DETROIT (AP) _ A Canadian company’s failure to deal adequately with cracks in an oil pipeline and its slow response to a 2010 rupture in southwestern Michigan likely caused the most expensive onshore oil spill in U.S. history, the National Transportation Safety Board said Tuesday.

Enbridge Inc. knew in 2005 that its pipeline near Marshall, a city 95 miles west of Detroit, was cracked and corroded, but it didn’t perform excavations that ultimately might have prevented the rupture, NTSB investigators told the five-member board at a meeting in Washington.

Investigators also faulted Enbridge control center personnel for twice pumping more oil into the line after the spill began and failing to discover what had happened for more than 17 hours, when an employee of a natural gas company notified them.

The board voted to approve the findings after testimony concluded.

The spill dumped about 843,000 gallons of heavy crude into the Kalamazoo River and a tributary creek, fouling more than 35 miles of waterways and wetlands.

Enbridge’s cleanup costs have exceeded $800 million, which NTSB Chairman Deborah Hersman said was more than five times greater than the next-costliest onshore spill.

“This accident was the result of multiple mistakes and missteps by Enbridge,” Hersman said. “But there is also regulatory culpability. Delegating too much authority to the regulated to assess their own system risks and correct them is tantamount to the fox guarding the henhouse. Regulators need regulations and practices with teeth _ and the resources to enable them to take corrective action before a spill, not just after.”

A message seeking comment was left with Enbridge.

The U.S. Department of Transportation’s Pipeline and Hazardous Materials Safety Administration last week proposed a record $3.7 million civil penalty against Enbridge.

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