During construction of the NPS 20 Line 65 Cromer (CM) to Gretna (GF) section of the LSr Project, two hydrotest releases occurred. The first release occurred at construction KP 17+303 when a long seam defect failed. The second release was a pinhole leak that occurred at construction KP 54+348, also caused by a long seam defect. These two joints of pipe were removed. Enbridge's study attributes the cracks to isolated events of power drop during welding.
Read the report at: Southern Lights Integrity Report.