U.S. imposes new conditions on Keystone XL after pipeline defects found

|By:, SA News Editor

U.S. safety regulators have added two new conditions on construction of the Keystone XL pipeline (TRP -0.5%) after learning of potentially dangerous construction defects involving the southern leg of the Canada-to-Texas project.

The defects - bad welds, dented pipe and damaged pipeline coating - have been fixed, but Pipeline and Hazardous Materials Safety Administration wants to prevent similar problems on the northern segment, which is on hold pending a decision by the Obama administration.

"The level of defects is indeed cause for alarm and indicative of something that is going on in the Keystone organization that isn’t satisfactory." says a Cal-Berkeley civil engineering professor.