An administrative law judge has found that Minnesota pollution regulators properly considered the construction impacts of Enbridge's controversial new pipeline, a blow to the oil pipeline's opponents.
The ruling by Judge James LaFave stems from a challenge to the draft water permits for the pipeline's construction, which were approved by the Minnesota Pollution Control Agency (MPCA) in February.
Three environmental groups and two Ojibwe bands asked for a "contested case" hearing over the draft permits. The MPCA agreed and a hearing was held this summer before LaFave.
In an opinion released Friday, LaFave wrote that the challengers "failed to prove" that construction of the pipeline — a replacement for Enbridge's current Line 3 — would permanently impact water quality and wetlands. Also, that there was no proof that the MPCA and Enbridge had undercounted the amount of wetland affected by the construction.
The $2.6 billion, 340-mile pipeline across northern Minnesota would cross 212 streams and affect more than 700 acres of wetlands.

The MPCA must decide whether to issue final water-quality permits for the new Line 3 by mid-November. The agency said Friday it will take the administrative law judge's report and public comments under advisement.
Enbridge said the judge's decision "confirms that Enbridge and the [MPCA] have identified the best and most prudent method" for stream and wetland protection.
The Laborers Union called the decision "very welcome news." Line 3 would be one of the biggest Minnesota construction projects in recent years, employing more than 4,000 trades workers at its peak, Enbridge said.