Enbridge ordered to pay $3M for Line 3 groundwater leak

This June 29, 2018 file photo shows tanks at the Enbridge Energy terminal in Superior, Wis. The state of Minnesota has gone to federal court to block a lawsuit over Enbridge Energy's Line 3 oil pipeline project from proceeding in tribal court. The novel case names Manoomin — the Ojibwe word for wild rice — as the lead plaintiff. Wild rice is sacred in Ojibwe culture and a traditional source of food. The lawsuit, which was filed two weeks ago in the White Earth Band's tribal court, is the first "rights of nature" enforcement case brought in a U.S. tribal court and the second such case to be filed in any U.S. court. (AP Photo/Jim Mone, File)

ST. PAUL, Minn. (AP) — Minnesota regulators have ordered Enbridge to pay more than $3 million for allegedly violating state environmental law by piercing a groundwater aquifer during construction of the Line 3 oil pipeline replacement.

The state Department of Natural Resources said Enbridge, while working near Clearbrook in January, dug too deeply into the ground and pierced an artesian aquifer, which resulted in a 24 million gallon groundwater leak.

“Enbridge’s actions are a clear violation of state law, and also of the public trust,” said Barb Naramore, DNR deputy commissioner. “That is why we are using all of the tools in our authority to address the situation.”

Enbridge said in a statement Friday that it was reviewing the DNR's order and would work with the agency on a resolution.

“Enbridge has been working with the DNR since June to provide the required site information and approval of a corrective action plan which is currently being implemented," the Calgary, Alberta-based company said. "We share a strong desire to protect Minnesota waters and the environment and we are committed to restoration.”

It wasn't until mid-June that the DNR discovered something was wrong after speaking to independent construction monitors who had observed water pooling in the pipeline trench near Clearbrook.

The DNR has ordered Enbridge to put $2.7 million into escrow for restoration and damage to nearby wetlands. Enbridge is also required to pay $300,000 to mitigate the lost groundwater and $250,000 for long-term monitoring of the wetlands.

Enbridge’s 340-mile (547-kilometer) Line 3 replacement pipeline will carry Canadian crude across northern Minnesota to the company’s terminal in Superior, Wisconsin. The pipeline, opposed by environmental groups and some Ojibwe tribes, is nearly complete. The project is replacing a deteriorating line built in the 1960s that can only run at half capacity.