UPDATE 1-Enbridge starts pressure test of downed pipeline

* Pressure validation test under way

* U.S. Regulators will use results to rule on restart

CALGARY, Alberta, Aug 30 (BestGrowthStock) – Enbridge Inc (ENB.TO: )
has begun testing the integrity of a pipeline it repaired after
a rupture spilled heavy crude into a Michigan river system, and
regulators will use the results to determine if it is ready to
resume deliveries, a spokeswoman said on Monday.

The pressure validation test involves running water through
the segment of Line 6B that broke last month near Marshall,
Michigan, using a higher pressure than employed for normal oil
shipments, spokeswoman Jennifer Varey said.

“The pressure validation test is under way today,” Varey
said.

Enbridge executives have said the test is likely to last
about eight hours.

The company is waiting for the U.S. Department of
Transportation’s Pipeline and Hazardous Materials Safety
Administration to rule on its plan to restart the 190,000
barrel a day pipeline.

The line serves refineries in the U.S. upper Midwest and
southern Ontario that, together, process more than 700,000
barrels a day. It is part of Enbridge’s massive pipeline
network, which moves the lion’s share of Canada’s oil exports
to the United States.

The refineries have been forced to secure supplies via
other pipelines, although Enbridge has rationed space on some
of its other conduits in the region as shippers scrambled to
reroute volumes.

At least three refineries in Ohio and Pennsylvania have
reduced output as a result of the July 26 pipeline break.

Meanwhile, price discounts for Canadian heavy crude oil
have widened since the rupture, which spilled 19,500 barrels of
oil into the Kalamazoo River system.
(Reporting by Jeffrey Jones; editing by Rob Wilson)

UPDATE 1-Enbridge starts pressure test of downed pipeline