Enbridge concludes investigation into fatal pipeline explosion
Enbridge Energy has concluded its investigation into the Nov. 28, 2007, explosion that killed two Superior(Wis.)-based workers on one of its pipelines.
Steve Arnovich, 35, and David Mussatti Jr., 27, both of Superior, Wis., were working at the site of the explosion near the northwestern Minnesota community of Clearbrook when they were killed.
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