Conservation group Watershed Watch Salmon Society has pulled out of the National Energy Board's review of the Trans Mountain oil pipeline expansion.
"We have no confidence in the fairness, objectivity, and appropriateness of the NEB’s review process for this project," said Watershed Watch executive director Aaron Hill in a letter to the NEB. "The review process is biased, lacking in rigour, and unfair."
The group says it's particularly concerned about the threat posed by any spill of dilluted bitumen.
Prominent expert Robyn Allan withdrew as an intervenor last month.
The second pipeline would nearly triple the flow of petroleum through the Lower Mainland and result in a five-fold increase in the number of oil tankers plying Burrard Inlet.