Depleted Uranium Hexafluoride Conversion Facility at the Portsmouth, Ohio, Site
This EIS analyzes potential environmental impacts of the proposed construction, operation, maintenance, and decontamination and decommissioning of a depleted uranium hexafluoride (DUF6) conversion facility at three locations within the Portsmouth site; transportation of all cylinders (DUF6, enriched, and empty) currently stored at the East Tennessee Technology Park (ETTP) near Oak Ridge, Tennessee, to Portsmouth; construction of a new cylinder storage yard at Portsmouth for ETTP cylinders; transportation of depleted uranium conversion products and waste materials to a disposal facility; transportation and sale of the hydrogen fluoride (HF) produced as a conversion coproduct; and neutralization of HF to calcium fluoride and its sale or disposal in the event that the HF product is not sold. The EIS also considers a no action alternative that assumes continued storage of DUF6 at the Portsmouth and ETTP sites.
DOE had announced in 2001 its intention to prepare DOE/EIS-0329 for two DUF6 conversion facilities, and then in 2003 determined that it would instead prepare this EIS for a proposed facility at Portsmouth, Ohio, and a separate EIS (DOE/EIS-0359) for a proposed facility at Paducah, Kentucky.
DOE cancelled a supplement analysis (DOE/EIS-0360-SA-01 and DOE/EIS-0359-SA-01). In 2016, DOE announced its intent to prepare a supplemental EIS (DOE/EIS-0359-S1 and DOE/EIS-0360-S1) for the Paducah and Portsmouth DUF6 facilities.