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DETSI Comment
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the OCP could be temporally discharged into the Upper Mundic Gully TSF. An updated water balance model has been undertaken to understand the impact of the proposed Upper Mundic Gully TSF on the water levels in the OCP and to confirm the level of spill risk from the OCP and is further described in Section 4.3.4 It is common practice within the engineering discipline for reports to be kept in draft until detailed design is complete and RPEQ approves issue for construction. The draft status of some reports does not limit the accuracy or clarity of information presented. Being in draft reflects that further detailed engineering and Engineer of Record assurance activities may be required to support construction. Various non engineering documents have been revised to be in non draft format. Section 2.5.1 of the application has been updated with further justification that the minor amendment criteria has been met. The EP Act defines 'relevant activity' for an environmental authority as the environmentally relevant activity the subject of the authority. Environmentally relevant activities include resource activities, which include mining activities authorised under a mining tenement under the Mineral Resources Act 1989 (Qld) (MR Act). Under section 19A of the EP Act, activities related to or connected with a resource activity are authorised by the issue of the environmental authority for the resource activity. Accordingly, the issue of the EA authorises related and connected activities which support the mining activities in the mine domains set out in Table A1 of the EA, and which can be carried out by Heritage Minerals on areas with surface rights granted under the MR Act.
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Several appendices are in ‘draft’ versions. Please provide completed technical studies to minimise the need for inferences regarding the application material and ensure clarity in what is being presented
Various appendices
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Table A1 authorise 231.35 hectares (ha) of disturbance, with the proposal to include an additional 43.4 ha of disturbance. This equates to an 18.76% increase in disturbance and will trigger a major amendment as per section 223 of the Environmental Protection Act 1994 (EP Act).
Section 2.5.1
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