∕ No known GDEs occur in proximity to the mine / UMG TSF nor within the researched area; ∕ Moderate to low potential Terrestrial GDEs have been mapped in proximity the site, although the majority occurs at in proximity to the edge of the researched area; ∕ The affected GDEs are upgradient of the seepage flow direction, so significant impacts are not expected. ∕ Aquatic GDEs associated with the Dee River and its tributaries, where groundwater contributes to river baseflow and influences surface water persistence during low ‑ flow conditions; ∕ Instream and riparian ecosystems mapped along the Dee River corridor that rely on the surface expression of groundwater, including reaches where groundwater discharge supports channel pools and wetted habitats; ∕ Terrestrial vegetation communities identified by the GDE Atlas as having potential dependence on the subsurface presence of groundwater, particularly within alluvial and fractured rock settings adjacent to the Dee River; ∕ No potential subterranean GDEs are mapped. Stygofauna are not listed in the Queensland Stygofauna Database within proximity of the Project area. ∕ No naturally occurring wetlands are located within the footprint of UMG TSF. The nearest naturally occurring wetlands are located further east associated with the Dee River; ∕ No active or inactive springs or groundwater fed systems were identified within the project area; ∕ Areas of potential shallow groundwater interaction in valley floors and drainage corridors where groundwater occurrence may support vegetation structure and ecological function; and ∕ These GDEs are identified through national ‑ scale and regional mapping and represent ecosystems where groundwater quality and flow conditions are relevant to environmental values in the vicinity of the Mount Morgan site. Further research into Queensland Globe Database (State of Queensland, 2026) regarding groundwater users within 10 km from the proposed UMG TSF area, indicates the following: ∕ There are 209 bores registered as water supply role, most of which are located east of the mine site across the Dee River and in proximity to the Mount Morgan township; ∕ There are 41 bores with an unknown or unclassified facility role; ∕ A small number of registered groundwater users occur in proximity to the proposed UMG TSF location; however, no bores are located within the proposed TSF footprint. Nearby bores are limited to sub-artesian monitoring and water supply bores; and ∕ Two registered bores are located east of the facility, near Dam 8. The GDEs and registered groundwater user locations within the researched area are presented in. Figure 49.
Project number: 25B061
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