Enterprise Assessments Operational Awareness Record for the Assessment of the Lawrence Livermore National Laboratory Transuranic Waste Inventory Tracking System, March 14-18, 2016 (OAR EA-LLNL-2016-03-14)

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June 2016

Operational Awareness Record for the Assessment of the Lawrence Livermore National Laboratory Transuranic Waste Inventory Tracking System

The U.S. Department of Energy Office of Enterprise Assessments (EA) conducted an operational awareness visit to the Lawrence Livermore National Laboratory (LLNL) on March 14-18, 2016, to evaluate the effectiveness of the transuranic (TRU) waste management and inventory tracking processes in maintaining the TRU waste inventory bounded by the analytical assumptions of the applicable safety basis documents.  EA reviewed the Waste Storage Facilities (WSF) Documented Safety Analysis (DSA), the Building 332 (B332) Plutonium Facility DSA, and their supporting calculations to understand the underlying analytical assumptions – e.g., material at risk, damage ratios, airborne release fractions, respirable fractions, and dose conversion factors – that were used to develop the hazards and accident analyses to bound the risk associated with TRU waste handling and storage operations.  EA held discussions with site personnel to gain an understanding of the current and projected TRU waste inventory and the strategies to ensure adequate TRU waste storage capacity until LLNL can resume TRU waste shipments to the Waste Isolation Pilot Plant.  EA also completed walkdowns of B332 and the WSFs and observed a demonstration of the information included in and the calculations and functions performed by the HazTrack inventory tracking system.