The Minnesota Court of Appeals ruled Monday that a full-scale environmental review must be completed before plans for a controversial crude oil pipeline across northern Minnesota can proceed.
Approval of the Sandpiper pipeline and its route "constitutes a major governmental action" under state law that "requires an environmental-impact statement" before regulators can give approval, the court said.
Judge Roger Klaphake, a retired appeals court judge serving by special appointment, said a review is necessary because the pipeline "has the potential to cause significant environmental effects."
The ruling sends that environmental issue back to the Minnesota Public Utilities Commission (PUC) and invalidates a 5-0 vote by the commission in June approving a certificate of need for Enbridge Energy, the pipeline's owner that wants to replace an older pipeline.
The ruling will likely delay construction of the $2.6 billion, 610-mile pipeline carrying North Dakota crude oil across remote areas in northern Minnesota to terminal in Clearbrook, Minn., and then on to Superior, Wis. Enbridge had hoped to start work on the pipeline in 2016 and finish the following year.
Critics want the PUC to consider routes for the pipeline in less environmentally sensitive areas. The impact on wild rice harvesting is also a concern.
Enbridge spokeswoman Lorraine Little did not say whether the company would appeal the decision.
"We will evaluate our options for the next steps with this important project," Little said in an e-mail to the Star Tribune.