Where Depleted UF6 is Stored in the United States
The UF6 at the three sites is stored in cylinders in large outdoor areas called "cylinder yards" at the three gaseous diffusion plants where it was produced.
Depleted UF6 Storage Locations
Most of the depleted UF6 accumulated since the 1940s is stored at the locations where it was produced as a product of the gaseous diffusion enrichment process. These locations are the gaseous diffusion plants near Paducah, Kentucky, and Portsmouth, Ohio, and at the East Tennessee Technology Park (ETTP)(formerly the K-25 Site) at the Oak Ridge Reservation in Oak Ridge, Tennessee.
Depleted UF6 is Stored at the Gaseous Diffusion Plant Locations
Depleted UF6 Cylinder Yards
The UF6 at the three sites is stored in cylinders in large outdoor areas called "cylinder yards." The total area of the storage yards at all three sites is about 4.3 million square feet, or about 100 acres. This is about equal to 100 football fields.
Storage yards are large outdoor areas that typically have a gravel or concrete base. All of the newer yards are built of concrete. The cylinders are typically stacked two high in the yards. The bottom cylinders are placed on concrete chocks, with some wooden chocks being used in older yards.
Depleted UF6 Cylinder Storage Yard
at a Gaseous Diffusion Plant Site
Depleted UF6 Cylinder Yard
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