(Reuters) -The oil spilled from TC Energy Corp’s ruptured Keystone pipeline was diluted bitumen, the U.S. Environmental Protection Agency (EPA) said on Thursday, adding complications to the cleanup.
REUTERS/Drone Base/File PhotoThe 622,000 barrels per day (bpd) pipeline was shut last week after it spilled 14,000 barrels of oil in rural Kansas, including into a creek.
The parts of the pipeline carrying oil from Alberta, Canada, to refineries in Illinois opened on Wednesday at reduced capacity.
The Sierra Club, another environmental advocacy group, questioned why parts of the pipeline reopened before TC Energy had identified the leak’s cause.
Pipeline and Hazardous Materials Safety Administration, state and local agencies, TC Energy and TC Energy contractors, the agency said.