Husky Energy says it's been given approval to rebuild its oil refinery in Superior, Wisconsin, after an explosion and a series of fires last year injured 36 people and required much of the city to be evacuated.

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The Duluth City Council is asking the U.S. Environmental Protection Agency to reconsider whether petroleum refineries should be allowed to continue their use of a dangerous and potentially deadly chemical.

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The Duluth City Council is taking steps to ensure the safety of its residents following the reconstruction of a refinery that exploded in neighboring Superior.

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The U.S. Chemical Safety Board wants federal environmental regulators to re-examine a 1993 study on hydrofluoric acid following an explosion at an oil refinery in Superior last year.

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Husky Energy said Wednesday that it will spend more than $400 million to rebuild its oil refinery in Superior and will continue its use of a highly toxic chemical that raised fears in the community after an explosion at the refinery last April.

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A hole in a valve was the source of an April explosion at a Husky Energy refinery in northwestern Wisconsin that injured 36 people and required the evacuation of a large part of the city of Superior, according to findings of the U.S. Chemical Safety and Hazard Investigation Board presented Wednesday.

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The Occupational Health and Safety Administration has fined a Superior refining company more than $83,000 for safety violations related to an explosion and fire that injured dozens of people and led to an evacuation in the city.

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Social media caused confusion during evacuation efforts following a refinery explosion and fire in Wisconsin, according to a report.

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A lawsuit alleges that negligence by the owners of Wisconsin's only oil refinery caused an explosion and fire that injured 36 people and caused a mandatory evacuation in the city of Superior.

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Officials now say at least 13 people were injured in an oil refinery explosion in the city of Superior.

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