U.S. Army Corps of Engineers flags concerns about safety violations Contacts Standing Rock, ND — Two days before a group of Tribal allies are scheduled to arrive at Standing Rock with a 25-foot totem pole for a solidarity event with the Standing Rock Sioux Tribe in its fight against the Dakota Access Pipeline (DAPL), a federal regulatory agency has hit the pipeline operator with an enforcement action over a series of alarming safety violations. In its filing, the Corps noted that it is reviewing the enforcement action as part of its “ongoing consideration of whether and how the Corps will enforce its property rights,” a reference to the Corps’ permit to Energy Transfer to operate DAPL beneath Lake Oahe, a dammed portion of the Missouri River where the Corps has jurisdiction. A federal district judge has already invalidated that permit because it was issued without a proper environmental review. But so far, the Army Corps under President Biden has used its discretion to allow the line to continue operating anyway.