Portsmouth Gaseous Diffusion Plant

The Portsmouth Gaseous Diffusion Plant, located in Piketon, Ohio, began operations in 1954 as part of a U.S. government expansion program for the production of highly enriched uranium to fuel military reactors and nuclear weapons production.
The primary mode of enrichment was the gaseous diffusion of uranium hexaflouride to separate the lighter fissile isotope, U-235, from the heavier non-fissile isotope, U-238.
During it’s nearly 60 years of operations, the cleaning, maintenance, and change out of process equipment at the site generated spent solvents and other contaminants that were disposed of in onsite landfills and surface storage buildings. To date, contamination has been found in various locations on site including the process buildings, the former cooling towers, landfills, waste water ponds, and other buildings. There are also groundwater plumes from the landfills.
See also: K25 ; Paducah Gaseous Diffusion Plant ; The United States Enrichment Corporation.


Office of Oversight, Environment, Safety and Health: Portsmouth Gaseous Diffusion Plant Volume 1: Past Environment, Safety, and Health Practices, 2000. - 99 s.

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