WASHINGTON – Tests of crude oil taken from North Dakota's Bakken Formation found that nearly one in five samples may have been improperly classified for shipment, a federal regulator said Wednesday.
Cynthia Quarterman, the leader of the Pipeline and Hazardous Materials Safety Administration (PHMSA), testified to a House subcommittee that 58 samples of Bakken crude inspected for proper classification uncovered 11 potential violations.
Improperly classified crude oil could increase the chances of fires or explosions if oil trains derail and tanker cars rupture. It also leaves local fire officials in the dark about the type of hazardous material they are dealing with when accidents occur.
Quarterman's presentation came as Congress focuses on recent fiery and sometimes deadly derailments of rail cars carrying crude oil across the United States and Canada. About eight of those oil trains pass through Minnesota daily, including six that travel through the Twin Cities metro area headed to refineries in the east and south.
The agency "has initiated enforcement actions on violators," Quarterman said in written testimony to the subcommittee. "In addition, as these violations could indicate further noncompliance issues, PHMSA continues to expand the scope of its investigations."
On Tuesday, the U.S. Department of Transportation issued an emergency order requiring better testing of Bakken crude, which some experts believe is more volatile than other types of crude oil because of its vapor pressure.
"If you intend to move crude oil by rail, then you must test and classify the material appropriately," Transportation Secretary Anthony Foxx said in a statement.
More frequent track inspections and better informed employees are also part of the plan for accident prevention, a series of government and private rail industry officials told the House Subcommittee on Railroads, Pipelines and Hazardous Materials.