Figure 1 – Site Locality Map
1.2 Proposed development The project will involve the excavation and treatment of historical Acid Rock Drainage (ARD) generating mine waste and redeposition of processed tailings into the Sandstone Gully Tailings Storage Facility (TSF), Open Cut Pit (OCP) and the Upper Mundic Gully Tailings Storage Facility (TSF). This will result in the removal of the source of ARD generating material from across the site reducing recharge of and seepage from mine waste structures. This will reduce impacts from the Mount Morgan Mine to the receiving environment including the Dee River in accordance with the State’s Rehabilitation Plan (Unger et al, 2003) and Phase 2 Agreement. The Project includes a new disturbance area to provide additional tailings storage in a facility known as Upper Mundic Gully TSF. Operation of the Mundic Gully TSF is required to future proof the site wide tailings/water balance capacity and reduce environmental impacts due to uncontrollable releases to as low as reasonably practicable (ALARP). The proposed location of the Upper Mundic Gully TSF is displayed in Figure 2 . The Upper Mundic Gully is a highly disturbed and modified environment that no longer free drains due to the historical placement of waste rock material and operation of a human made tunnel.
3
Mundic Gully TSF Impact Mitigation Management Plan - Grevillea hockingsii
Powered by FlippingBook