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Report no. 11/23: The concept of sustainable remediation has become well established in the remediation industry and its application has spread around the world. However, there is a recognised gap in the provision of detailed case studies documenting the practical implementation of sustainable remediation in the real world, particularly in a European context. A consequence of this gap is that the further refinement of guidance is impeded by a lack of knowledge of what aspects work well in practice, versus poorly.

Concawe commissioned a study to a) gather, prepare and publish ten European case studies that demonstrate sustainable remediation techniques and technologies and b) provide an analysis of the case studies to identify key success factors that facilitated the adoption and success of these projects at different sites.

A long-list of twenty case studies was identified. Each case study was scored by the project team on how closely it matched ISO Standard on Sustainable Remediation 18504:2017, its relevance to Concawe and its ability to be delivered to time. Ten case studies were recommended for selection, agreed by Concawe and a case study provider contracted. Case study information was then collected in a common template and reviewed by the project team, CL:AIRE’s Technology and Research Group and Concawe. A series of ten detailed case study bulletins are freely available on-line from the CL:AIRE and Concawe websites.