The current mission at the Portsmouth Site is to effectively implement EM responsibilities, obligations and activities to accomplish environmental remediation actions in compliance with regulatory milestones and agreements; disposition legacy and newly generated waste; implement Cold Shutdown requirements; disposition of depleted uranium hexafluoride cylinders; and perform Decontamination and Decommissioning.
Enforcement
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Nuclear safety deficiencies that occurred between 2019 and 2022 revealed multiple violations of DOE nuclear safety requirements by Mid-America Conversion Services, LLC at Portsmouth Paducah Project Office.January 20, 2026
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Electrical Shock Event at the Brookhaven National LaboratoryJanuary 16, 2026
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Unauthorized access of a high radiation area at the Lawrence Livermore National Laboratory.December 19, 2025
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Thumb Amputation at Savannah River SiteNovember 21, 2025
Safety Oversight Reports
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Independent Assessment of the 2025 Annual Full-participation Emergency Management Exercise at the Waste Isolation Pilot PlantMay 22, 2026
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Independent Assessment of Safety System Management at Los Alamos National Laboratory Plutonium Facility Building 4 at Technical Area 55May 22, 2026
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Independent Assessment of the Transuranic Waste All-hazards Planning Basis at the Idaho Cleanup ProjectMay 22, 2026
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Independent Assessment of Work Planning and Control by Hanford Mission Integration Solutions, LLC at the Hanford SiteMay 22, 2026
Security and Cybersecurity Oversight Reports
Independent Focused Assessment of the Material Control and Accountability Program at the Portsmouth Gaseous Diffusion Plant, January 21, 2022
Office of Enterprise Assessments Review of the Material Control and Accountability Program at the Portsmouth Gaseous Diffusion Plant, July 16, 2018
Office of Enterprise Assessments Review of the Material Control and Accountability Program at the Portsmouth Gaseous Diffusion Plant, April 5-7, 2016
Results of the Limited-Scope Assessment of Protective Force Management and Capabilities at the Portsmouth Gaseous Diffusion Plant, November 3-5, 2015
Independent Review of the Cyber Security Program at the Portsmouth/Paducah Project Office, December 2015
Independent Review of the Unclassified and Classified Cyber Security Programs at the Portsmouth Gaseous Diffusion Plant, March 2015
Independent Oversight Review of Material Control and Accountability at the Portsmouth Gaseous Diffusion Plant, August 2013
Independent Oversight Review of the Material Control and Accountability Program at the Portsmouth Gaseous Diffusion Plant, April 2012
Security Review to Support the Portsmouth Gaseous Diffusion Plant Transition, June 2011
Independent Oversight Material Control and Accountability Site Assistance Visit at the Portsmouth Gaseous Diffusion Plant, May 2011