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EPA adds 150-mile Upper Columbia River stretch to Superfund list due to heavy metal contamination.
The Environmental Protection Agency (EPA) has added a 150-mile stretch of the Upper Columbia River in Washington to its Superfund list due to contamination from lead, arsenic, and other heavy metals.
The pollution stems from a Canadian smelting facility and a former U.S. smelter.
The designation will facilitate cleanup efforts and potentially secure federal funding for the process, addressing risks to human health and the environment.
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La EPA añade el tramo de 150 millas del río Upper Columbia a la lista de Superfund debido a la contaminación de metales pesados.