The Moab Uranium Mill Tailings Remedial Action Project (Moab Site or Project) is located in southeastern Utah. Its 480-acre Moab Site includes a former uranium-ore processing facility that operated under private ownership from 1956 to 1984. The Project includes relocation of the estimated 16-million-ton pile of uranium mill tailings and other contaminated material near the Colorado River to an engineered disposal cell constructed 30 miles north near Crescent Junction, Utah. The scope also includes active remediation of contaminated groundwater at the Moab Site. After contaminated soil, tailings, debris, vicinity properties, and groundwater are remediated, the Moab Site will be transferred to LM for continued groundwater monitoring and potential reutilization of the site. The Crescent Junction Site will also be transferred to LM for monitoring and required stewardship of the disposal cell.
Planned Cleanup Scope 2021-2031
Over the next several years, DOE expects to ship nearly one million tons of uranium mill tailings annually to the Crescent Junction disposal site. As a result, DOE expects to complete the relocation and disposal of the pile by CY 2029. It will take an additional two years to complete the restoration of the Moab Site, dispose of potentially contaminated equipment and intermodal containers, and to install the cover on the disposal cell.
DOE also plans to continue transportation and disposal of oversize debris from the Moab Site, including 14 autoclaves decommissioned by the Atlas Minerals Corporation. They are assumed to weigh at least 40 tons each and could be filled with asbestos. Transportation of oversize debris will continue through CY 2028.
Key Regulatory Milestones 2021-2031
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