Question: What is in Ohio?

Context paragraphs:
Portsmouth Gaseous Diffusion Plant: The Portsmouth Gaseous Diffusion Plant is a facility located in Scioto Township, Pike County, Ohio, just south of Piketon, Ohio that previously produced enriched uranium, including weapons-grade uranium, for the United States Atomic Energy program and U.S. nuclear weapons program.  The plant is in shutdown status and is in preparation for decontamination and decommissioning (D&D), with some facilities overseen by the United States Enrichment Corporation, a subsidiary of USEC Incorporated, a publicly traded corporation (NYSE: USU).  The D&D work on the older facilities to prepare the site for future use is expected to continue through 2024 and is being conducted by Fluor-B&W Portsmouth LLC.

Piketon, Ohio: Piketon is a village in Pike County, Ohio, United States, along the Scioto River.  The village is best known for the uranium enrichment plant located there (one of only three such plants in the United States).  The population was 2,181 at the 2010 census.  Originally called Jefferson, it was the county seat of Pike County 1815–1845, when James Emmitt, a wealthy local entrepreneur, influenced removal of the county seat to Waverly, due to its closer proximity to the then new Ohio & Erie Canal.  Piketon is the location of the Pike County Fairgrounds and is served by the Scioto Valley School District.

Supporting paragraphs: Piketon, Ohio Portsmouth Gaseous Diffusion Plant
Answer: plant