Update of LeTrench project December 2017 Tim Payne – Australian Nuclear Science and Technology Organisation
LeTrench project addresses this topic Rationale: The topic of Legacy Trenches has been given relatively little attention by existing international projects and networks. No international consensus on disposal of radioactive waste at the time of operations Numerous sites exist worldwide Shallow burial was a commonly used method, particularly in 1950’s and 1960’s (often without engineered containment) . Used for disposing of low-level wastes, sometimes liquids Often involved complex and poorly characterised mixtures of wastes, and miscellaneous objects May pose current or future risks to members of the public and/or the environment. LeTrench project addresses this topic
Legacy trenches exist in many countries UK Australia Canada
Le Trench (legacy trench) working group ( a project within IAEA Environet Network) Activities and objectives collecting experiences of legacy sites around the world encouraging preservation of relevant information identifying and addressing common issues developing methods of disseminating knowledge provision of technical assistance or advice maintaining relevant expertise Outcome: A report on this topic is in preparation
Sellafield Legacy Trench meeting (September 2016)
Kiev Legacy Trench meeting May 2017
Trench facilities in the exclusion zone
Kiev workshop participants
Upcoming LeTrench Report “Evaluation, Management and Remediation of Radioactive Waste Legacy Trench Sites” 1. Introductory 2. Global context 3. Inventory 4. Decision making / end state 5. Regulatory 6. Characterisation 7. Modelling 8. Remediation technologies 9. Stakeholder interactions 10. Knowledge management 11. Summary and conclusions Case studies
New participants will be welcome! Thanks: IAEA (particularly Horst) Hosts of LeTrench Workshops (Julian, Dmitri) Editorial committee (Susan, Peter, Dmitri) Members of LeTrench project Environet participants New participants will be welcome! “Alone we can do so little; together we can do so much” [Helen Keller]