"Canada's federal pipeline regulator has ordered Enbridge to conduct a full engineering assessment of a troubled northern pipeline that has sprung several leaks in the last two months."
"The National Energy Board issued the demand on March after Enbridge reported finding four oil leaks on its Norman Wells to Zama pipeline (Line 21) in a two month period this year. All occurred along the same segment of the line that experienced a major oil spill in 2011.
In response to the order, Herb Norwegian, Dehcho First Nations Grand Chief, called for the replacement of the entire 870-kilometre line before a catastrophic eruption occurs affecting a major waterway."
Andrew Nikiforuk reports for B.C. Tyee April 19, 2013.
SEE ALSO:
"Oil Pipeline Expansion Battle Looms" (San Francisco Chronicle)
Advertisement 
