A federal agency says a leak in TransCanada Corp.’s Keystone oil pipeline in South Dakota likely was caused by damage during construction in 2008.
The Pipeline and Hazardous Materials Safety Administration issued a corrective action report Tuesday on the estimated 5,000 barrels (795,000 litres) of oil that spilled. The report says a weight installed on the pipeline nearly a decade ago may have damaged the pipeline and coating.
According to the report, weights are placed on the pipeline in areas “where water could potentially result in buoyancy concerns.”
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TransCanada spokesman Mark Cooper declined to comment to the Aberdeen News since the agency’s investigation is ongoing. But Cooper says the company has begun “a safe, controlled and gradual startup” of the pipeline.
READ MORE: Keystone pipeline will reopen Tuesday after leak repaired
South Dakota officials don’t believe the leak polluted any surface water bodies or drinking water systems. The company disclosed the buried pipeline leak on agricultural land in Marshall County on Nov. 16.
Watch below: Some videos from Global News’ ongoing coverage of the controversy surrounding the Keystone pipeline.
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Edmonton’s chief economist on Keystone XL pipeline approval through Nebraska -
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Keystone XL pipeline: A timeline of events -
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Is the approval of the Keystone XL Pipeline a good thing? -
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Premier Rachel Notley calls Keystone XL expansion into Nebraska good news -
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Alberta premier weighs in on Keystone XL approval through Nebraska -
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Keystone XL decision leads to cautious optimism for potential construction contracts -
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Nebraska approves alternate route for Keystone XL pipeline -
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Keystone XL gets approval in Nebraska -
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Retired TransCanada executive reacts to Nebraska Keystone XL approval -
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South Dakota residents haven’t heard from TransCanada after Keystone XL pipeline leak -
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Nebraska to rule on Keystone XL pipeline expansion -
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Nebraska to rule on Keystone XL pipeline -
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Drone footage puts the spotlight on Keystone oil pipeline spill -
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Video shows scope of Keystone oil spill -
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800,000 litres of oil spill from Keystone pipeline in U.S. -
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Trump said he insisted on U.S. steel for Keystone – to a point -
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Keystone XL symbol of Trump’s elimination of environmental regulations -
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Roadblocks remain after Trump gives green light to Keystone XL pipeline -
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Trump approves Keystone XL pipeline -
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Keystone, Kinder Morgan, Energy East pipelines will reduce costs: Notley
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