CALGARY, Alberta, July 23 A valve fitting on
Enbridge's Inc's 491,000 barrel a day Line 5 oil
pipeline failed during a hydrostatic test late on Sunday, making
timing for restarting the pipeline uncertain, an Enbridge
The pipeline between Superior, Wisconsin, and Sarnia,
Ontario, has been shut since Thursday for the test. The valve
failed near Bay, City, Michigan, spokesman Graham White said in
an email on Monday.
"Enbridge crews repaired the valve fitting this morning, and
the hydrostatic test was resumed. Line restart has not yet been
determined," White said.
Enbridge denied a press report that it had experienced a
leak of oil and water from Line 5 in Michigan.
The incident was "Not a leak, but a valve fitting failure,"
Line 5, which has been consistently oversubscribed as demand
for space exceeds capacity, was carrying out the test in advance
of a planned expansion of the line's capacity by 50,000 bpd. In
July, Enbridge said shippers got only 74 percent of the space
they requested on the line.
Enbridge's pipelines carry the bulk of the country's
U.S.-bound exports. A source familiar with Enbridge pipeline
operations said Line 5 should be up and running normally soon,
with providing further detail.
Enbridge shares traded down 36 cents in Toronto to CAD
$40.72 in morning trading on Monday.