Oil pipeline construction ruptures MN aquifer
Officials with Enbridge Energy and the Minnesota Department of Natural Resources confirmed the breach occurred near Moose Lake in Aitkin County.
MOOSE LAKE, Minn. — A fourth aquifer breach has been confirmed in northern Minnesota stemming from a Canadian oil company’s construction of an oil pipeline replacement in the region, state officials said.
Officials with Enbridge Energy and the Minnesota Department of Natural Resources confirmed the breach occurred near Moose Lake in Aitkin County. A spokesperson for Enbridge said the company is working to fix the rupture. They explained the layer of earth above an aquifer in the area is punctured, causing the water to leak to the surface and possibly introducing pollutants.
The Enbridge spokesperson said the rupture was discovered by Enbridge officials, who then reported the groundwater flow to the DNR.
It’s the fourth confirmed breach along the Line 3 pipeline route, which started operating in the fall of 2021 and generated fierce opposition from environmental activists and Native American tribes. Last October, state regulators announced that Enbridge would pay more than $11 million for water quality violations and the three previous aquifer breaches.
An aquifer is a natural underground reserve of fresh water capable of being tapped by wells. Environmentalists say such groundwater reserves face a multitude of threats from human populations, including depletion from overuse, pollution from agriculture and septic systems and contamination from pipeline construction and spills.
Groundwater at the Moose Lake breach is flowing to the surface at about 10 to 15 gallons per minute, department officials said. That’s “considerably lower” than the rate at which groundwater initially flowed from the other three breaks, the agency said.
Enbridge will submit a plan to correct the Moose Lake area damage and will implement it when it’s approved, the spokesperson said in a statement. They added the aquifer breaches don’t involve the pipe itself, but rather, are related to sheet-metal piling in the ground, which is used to reinforce the trenches that crews work in.
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Source: KARE11.com
