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fqt4u7617o1z5c)9tps2e106_media_dl_1.png Source: Pipeline and Hazardous M Article content (Bloomberg) — When a seam joining two segments of the Keystone oil pipeline ruptured on a frigid night last December — spewing more than 12,000 barrels of heavy crude that polluted a Kansas creek — the disaster had already been years in the making. Article content More than a decade ago, US regulators warned that the type of weld that would go on to trigger the worst spill in Keystone’s history had a pattern of failure. And since Keystone began operation in 2010, the Pipeline and Hazardous Materials Safety Administration has notified operator TC Energy Corp. at least five times that elements of Keystone’s building and operating practices posed safety risks. Article content Yet the 2,687-mile (4,324-kilometer) pipeline running from Canada’s oil sands through America’s heartland has gone on to suffer almost two dozen accidents in 12 years, with the severity of leaks increasing over time, according to the Government Accountability Office. Since 2010, it has spilled more oil than any other pipeline on US soil, PHMSA data show. Article content Government records reveal TC Energy pushed the pipeline to the limit, cranking a measure of stress on the line higher […]
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