DNR Investigates 70,000-Gallon Oil Spill from Enbridge’s Line 6 Pipeline in Wisconsin

(P&GJ) — The Wisconsin Department of Natural Resources (DNR) is investigating a significant crude oil spill along Enbridge Energy’s Line 6 pipeline in Jefferson County, Wisconsin, near the town of Oakland, about four miles east of Cambridge.

The spill was first reported to the DNR on November 11, 2024, when Enbridge notified the agency of a two-gallon release at the company’s Cambridge Station. The DNR immediately responded, conducting a site visit on the same day, which continued into November 12.

The initial report was followed by an update from Enbridge on November 14, when the company revised its estimate of the spill from two gallons to three barrels (126 gallons). However, on December 13, Enbridge updated the total spill estimate again, now reporting a much larger release of approximately 1,650 barrels, or 69,300 gallons of crude oil.

The DNR has been closely monitoring the situation, with site visits continuing throughout December. The agency is evaluating the situation and considering further actions, including the possibility of issuing a corrective action order. Enbridge has been providing weekly updates to the DNR on the progress of the cleanup, which remains ongoing.

Under Wisconsin law, companies responsible for environmental contamination must report and remediate the damage. The DNR is making information available to the public, including updates on the investigation and cleanup, which can be accessed on the DNR’s Bureau for Remediation and Redevelopment Tracking System (BRRTS).

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