Rehabilitation scenarios Overview of options for the Conceptual Rehabilitation Plan Chapter 1 details the objectives of the Conceptual Rehabilitation Plan. The plan encompasses objectives that fall into three main groups: objectives set by Commonwealth and Northern Territory Governments embodied in the NPA objectives set by the rehabilitation requirements for the site objectives set by the traditional Aboriginal owners and the community. The objectives are the basis for identifying and scoping of technical investigations, the design and execution of specific monitoring programs, and the focus for specification and assessment of potential options for rehabilitation work. The results of the technical studies detailed in Chapter 6 and a review of current leading practice rehabilitation methods in Australia and overseas were used to define five potential rehabilitation scenarios: Scenario 1—Re-cover waste rock dumps in situ Scenario 2—Backfill Intermediate and Main pits then consolidate remaining waste rock into the Main waste rock dump Scenario 3—Backfill the Intermediate and Main pits and consolidate remaining rock into Dysons waste rock dump Scenario 4—Backfill Main and Intermediate pits and consolidate waste rock in former tailings dam area Scenario 5—Backfill Main Pit and leave the Intermediate pit as a lake. In reviewing and comparing the various scenarios, it is useful to have a visual base map of the current layout and contours of the site. Figure 71 shows the current site conditions. Section 5.5 provides more details about the current site condition.
Rehabilitation scenarios Overview of options for the Conceptual Rehabilitation Plan Chapter 1 details the objectives of the Conceptual Rehabilitation Plan. The plan encompasses objectives that fall into three main groups: objectives set by Commonwealth and Northern Territory Governments embodied in the NPA objectives set by the rehabilitation requirements for the site objectives set by the traditional Aboriginal owners and the community. The objectives are the basis for identifying and scoping of technical investigations, the design and execution of specific monitoring programs, and the focus for specification and assessment of potential options for rehabilitation work. The results of the technical studies detailed in Chapter 6 and a review of current leading practice rehabilitation methods in Australia and overseas were used to define five potential rehabilitation scenarios: Scenario 1—Re-cover waste rock dumps in situ Scenario 2—Backfill Intermediate and Main pits then consolidate remaining waste rock into the Main waste rock dump Scenario 3—Backfill the Intermediate and Main pits and consolidate remaining rock into Dysons waste rock dump Scenario 4—Backfill Main and Intermediate pits and consolidate waste rock in former tailings dam area Scenario 5—Backfill Main Pit and leave the Intermediate pit as a lake. In reviewing and comparing the various scenarios, it is useful to have a visual base map of the current layout and contours of the site. Figure 71 shows the current site conditions. Section 5.5 provides more details about the current site condition.
Rum_Jungle_Conceptual_Rehabilitation_Plan-a.docx