TC Energy says stress, weld fault caused Keystone oil spill

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Pipeline operator TC Energy Corp said on Thursday a combination of factors including bending stress on the pipe and a weld flaw might have led to the Keystone oil spill and that it was expecting $480 million in costs related to the incident.

Although welding inspection and testing were conducted, TCon Thursday that the weld flaw led to a crack that propagated over time, eventually leading to an instantaneous rupture.

"A bad weld from a fabrication facility is troubling - it adds to the list of manufacturing and construction issues that have plagued this pipeline," said Bill Caram, executive director of Pipeline Safety Trust, a U.S. advocacy group against pipeline hazards. As for the bending stress, the company added that the cause remains under investigation as part of the broader third-party root cause failure analysis.

Land movement likely caused a bad weld to break and bending stress on the pipe, said Caram, adding that Keystone's permit requires it to mitigate such threats.ning at a higher rate than other U.S. crude lines since 2017 because of a special permit. Reporting by Arunima Kumar and Deep Vakil in Bengaluru and Rod Nickel in Winnipeg; Editing by Shounak Dasgupta, Anil D'Silva and Diane CraftCovers energy, agriculture and politics in Western Canada with the energy transition a key area of focus.

 

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So they will clean it up, likely better than it was before, and they have a financial incentive to try to ensure it doesnt happen again. The system works.

It's what happens when you hire the low wage low skilled employees.

good thing it leaked right into that clean water source. also... unions pay welders premium wages for premium quality. Anytime you wanna step up, we're ready.

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