Minnesota regulators have ordered Enbridge to pay more than $3 million US 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 90-million litres 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 US into escrow for restoration and damage to nearby wetlands. Enbridge is also required to pay $300,000 US to mitigate the lost groundwater and $250,000 US for long-term monitoring of the wetlands.
Enbridge’s 547-kilometre 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.
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