A small spill at a Trans Mountain pipeline pump station north of Kamloops, B.C. on Sunday morning led Kinder Morgan to shut down operations for half a day. The company said the spill, which occurred around 5 a.m., was contained to its Darfield pump station property, with no oil reaching local waterways.

“The station was quickly isolated and as a precaution, the main Trans Mountain Pipeline was shut down,” Kinder Morgan said in a statement. It restarted pipeline around 3:30 p.m.

B.C.’s environment ministry told CIM Magazine the spill was about 100 litres of crude in volume, which is roughly twice the size of the gas tank in an average car.

The spill came days before Kinder Morgan’s May 31 deadline for abandoning the Trans Mountain expansion project, which would nearly triple the capacity of the Edmonton-to-Burnaby pipeline, due to delays from the B.C. government.

Federal Finance Minister Bill Morneau promised in mid-May that Ottawa would indemnify Kinder Morgan against “politically motivated” delays caused by B.C., but the company has yet to say whether this promise is enough to go ahead with the project. Kinder Morgan CEO Steve Kean said discussions with the feds were ongoing, but “we are not yet in alignment and will not negotiate in public.”

The project has faced intense public backlash. Mass protests against the pipeline in Burnaby resulted in criminal contempt charges against 187 protesters for breaching a court order granted to Kinder Morgan to keep protesters away from the work site. Federal Green Party leader Elizabeth May and NDP MP Kennedy Stewart were among those charged.