360 Environmental - Rehabilitation Benchmarking Study
As part of the development of the mine work started in 2013 on a mine closure plan consistent with the 2013 DMP-EPA Mine Closure Guidelines.
The current proposal for Tropicana will see the project operate for about 15 years resulting in the disturbance and eventual rehabilitation of potentially 3,040 hectares (excluding the mine void). Successful closure of the project will occur by adhering to the following: enshrining a whole-of-mine life approach to closure; adequately provisioning for closure; allocating responsibilities across the operation and through time; developing an understanding of the local environment; and establish new rehabilitation standards by embarking on a program of research and development that aims to fill in gaps in rehabilitation knowledge.
As part of the PER documentation a conceptual mine closure and rehabilitation strategy has been submitted, while the proposed mine closure and rehabilitation strategy will be prepared within five years of project start-up and reviewed every two to three years.
The approved mine closure and rehabilitation plan will be submitted to the relevant stakeholders for approval three to five years prior to the closure of the project and will be followed by a closure and rehabilitation research and design strategy, which will combine existing broad-scale rehabilitation knowledge with a research program tailored to improve the understanding of the rehabilitation requirements for the project.
The landform heights and slopes at Tropicana have been designed to create landforms that will ultimately blend into the surrounding landscape. The maximum height of the landforms will be 375 mRL which will make the waste landform summits lower than surrounding high landscape and not visible outside the broad valley containing the Resource Area.