Enbridge Inc. (TSX:ENB) (NYSE:ENB) today confirmed the return to service of the Wood Buffalo Pipeline (Line 75) between Fort McMurray and Cheecham early on July 2. The Wood Buffalo Pipeline had been shut down as a precaution following the June 22 release of light synthetic crude oil from Line 37 with which it shares a corridor. The failure of Line 37 was confirmed to have been caused by a 1-in-100 year rainfall event last week, which triggered ground movement on the right-of-way. The Wood Buffalo Pipeline has been restarted at reduced pressure pending completion of further geotechnical analysis in the incident area.
The Woodland Pipeline (Line 49) in the same corridor between Fort McMurray and Cheecham has been in the process of line fill upstream from the site of the incident. Line fill activities continue in preparation for full start up.
As announced July 1, the northern segment of the Athabasca Pipeline is now operating at reduced pressure from Fort McMurray to Cheecham, and normal pressure on the southern segment from Cheecham to Hardisty. The Wood Buffalo Pipeline connects at Cheecham with the Waupisoo Pipeline (Line 18), which runs from Cheecham to Edmonton; the Waupisoo Pipeline was returned to service at normal pressure on June 25.