ABSTRACT

Pipeline Safety: Information on Keystone Accidents and DOT Oversight, Report to Congressional Requesters   [open pdf - 2MB]

From the Highlights: "Since it began operating in 2010, Keystone has transported over 3 billion barrels of crude oil from Canada to refineries in Illinois, Oklahoma, and Texas, according to its operator, TC [TransCanada] Energy. Prior to construction, TC Energy requested and obtained a special permit from PHMSA [Pipeline and Hazardous Materials Safety Administration] to operate certain portions of the pipeline at a higher stress level than is allowed under PHMSA's regulations. Since TC Energy was the first and remains the only hazardous liquid pipeline operator to request a waiver of this particular regulation, the Keystone special permit is unique. GAO [Government Accountability Office] was asked to review PHMSA's oversight of the Keystone Pipeline. This report discusses: (1) PHMSA's actions to approve the Keystone special permit and allow the pipeline to operate at a higher stress level, (2) how Keystone accidents compare to accidents on all U.S. crude oil pipelines since 2010, and (3) PHMSA's actions in response to Keystone safety issues."

Report Number:
GAO-21-588
Publisher:
Date:
2021-07
Copyright:
Public Domain
Retrieved From:
Government Accountability Office: https://www.gao.gov/
Format:
pdf
Media Type:
application/pdf
URL:
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