A scheduled 'integrity dig' on Enbridge's Line 21 or Norman Wells Pipeline has alerted the company to contaminated soil in two locations along the line, according to an Enbridge news release, raising concerns the aging line may be leaking along its 870 kilometre route.
“The pipeline was shut down as a precautionary measure until repair sleeves were installed,” the release reads. “Further investigate is being conducted at each site.”
At kilometre post 457 along the line, near Fort Simpson, roughly 30 cubic metres of hydrocarbon tainted soil were removed from the area. At kilometre post 391, near Wrigley, between 60 and 70 cubic metres of soil were quarantined, the approximate equivalent of 6 or 7 dump truck loads. Enbridge has not indicated the cause of the leaks at this point.