In July 2011, a TransCanada natural-gas pipeline in Wyoming exploded. The Canadian Broadcasting Company found internal company documents explaining how it happened: negligence.
“We are in trouble on the Bison project,” the pipelines’ construction manager wrote in a Sept. 18, 2010, internal email that lists problems related to welding and inspection. Construction of the project had started in August 2010.
The U.S. Pipeline and Hazardous Materials Safety Administration (PHMSA) inspected the Bison project in September 2010, and took issue with the quality-assurance of inspections, the qualifications of people working on the pipeline and the procedures used to test the coating on the pipe. …
CBC News also obtained an all-staff internal memo issued by TransCanada CEO Russ Girling on Aug. 11, 2011, in which he acknowledged problems with an earlier phase of the existing Keystone line, and the ill-fated Bison pipeline.
"We have experienced some challenges with the startup of our Keystone and Bison pipelines which has been disappointing for both TransCanada and its customers,” he wrote.
Publicly, the story was different.