June 2022,

Independent Assessment of Construction Safety for the Utility Shaft Project at the Waste Isolation Pilot Plant

The U.S. Department of Energy Office of Enterprise Assessments (EA) conducted an independent assessment of construction safety for the Utility Shaft Project at the Waste Isolation Pilot Plant on March 14-17, 2022. This assessment evaluated the subcontracted construction activities of HarrisonWestern-Shaft Sinkers Joint Venture (HWSS), a subcontractor to the management and operatingcontractor Nuclear Waste Partnership, LLC (NWP). Additionally, this assessment evaluated oversight ofthe Utility Shaft Project by NWP.