This report, the Conceptual Rehabilitation Plan documents the findings from technical investigations commissioned to fill key knowledge gaps about the current environmental status of the site, the outcomes of consultation with key stakeholders, site maintenance activities, and the process by which a preferred conceptual rehabilitation strategy has been developed. Both the long-term monitoring data and previous technical investigations on the site and downstream were intensively reviewed to identify areas of technical certainty and uncertainty. The key information gaps that were identified were used to scope and commission new investigations to inform the options being developed for rehabilitation of the site. In addition, both Aboriginal and non-Aboriginal cultural heritage attributes have been taken into account because they are fundamentally important to achieving a successful rehabilitation outcome for the site. Finally industry-specific leading practice principles, together with leading practice guidance from relevant national and international agencies has been incorporated into the project.