Characterisation Methodology for Unconventional and Legacy Waste

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The Expert Group on Characterisation Methodology of Unconventional and Legacy Waste (EGCUL) was established under the Nuclear Energy Agency (NEA) Radioactive Waste Management Committee (RWMC) and it gathered experts with experience in radioactive waste management characterisation, in managing radiological contamination situations following accidents or in decommissioning legacy waste facilities. The EGCUL was created to develop a strategic approach to manage the complex characterisation process of waste, which consists of a sampling and detailed analysis plan based on statistical approaches, calculation methods and evaluation process for the data obtained. 

The focus of this report is on characterisation in terms of safe management of radioactive waste by considering both the radiological and non-radiological hazards. Several case studies have been prepared from France, Japan, Russia, Ukraine and the United Kingdom supported by a range of material provided by NEA member countries during the meeting held in December 2019 by the Committee on Decommissioning of Nuclear Installations and Legacy Management.