Federal environmental authorities have added two hazardous waste sites in the Southeast to the Superfund National Priorities List.

Superfund is the Enviromental Protection Agency's program that investigates and cleans up complex uncontrolled or abandoned hazardous waste sites.

Armstrong World Industries, a ceiling tile manufacturer in Macon, and Horton Iron and Metal, a former fertilizer manufacturer and metal salvage site in Wilmington, N.C., have been added to the list.

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Members of the conversion crew take a break as the main scoreboard is lowered to the floor to be worked on as the arena gets ready for the next concert at State Farm Arena, Thursday, October 2, 2025, in Atlanta. The crew was working on creating a stage for the Friday, Oct. 3 Maxwell concert. (Jason Getz/AJC)

Credit: Jason Getz / Jason.Getz@ajc.com