U.S. EPA begins review of four Superfund clean-ups including Arconic (Alcoa) site in Riverdale

The U.S. Environmental Protection Agency (EPA) announced Monday (5/4/26) it will conduct comprehensive reviews of cleanup work beginning this spring at four Superfund sites, including the Arconic (formerly Alcoa) Davenport Plant site in Riverdale and the Mississippi River Pool 15.

The sites undergo a review every five years to ensure ongoing or completed remediation efforts continue to protect human health and the environment, according to the EPA news release. "Upon completion of the review, EPA will make a Five-Year Review Report available on the Superfund Site Profile page," the EPA stated.

“EPA Region 7 is committed to upholding the statutory requirements granted to it by Congress and will conduct comprehensive Five-Year Reviews at our Superfund sites across the Heartland,” EPA Region 7 Administrator Jim Macy stated in the announcement. “Protecting human health and the environment is our core mission, and we do that at Superfund sites by making sure remedies are operating as designed.”

The Superfund program, a federal program established by Congress in 1980, investigates and cleans up complex, uncontrolled, or abandoned hazardous waste sites in the country. EPA endeavors to facilitate activities to return them to productive use.

CLICK HERE for additional background information on the Arconic (Alcoa) site contamination and clean-up plan progress.

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