Mount Morgan Mine Upper Mundic Gully TSF EA Amendment

Significant Residual Impact criteria Interfere substantially with the

Assessment

The survey area is unlikely to host an ecologically significant proportion of the population, as the species is widespread and almost exclusively aerial. No recovery actions within Australia are identified for the species. As such, the project is considered unlikely to interfere with the recovery of the species. This species breeds in the Northern Hemisphere, and whilst in Australia the species is almost exclusively aerial. As such, the project is considered unlikely to cause disruption to ecologically significant locations (breeding, feeding, nesting, migration or resting sites) of a species.

Unlikely

recovery of the species.

Cause disruption to ecologically significant locations (breeding,

Unlikely

feeding, nesting,

migration or resting sites) of a species.

7.10.1.7 Grevillea hockingsii Grevillea hockingsii only occurs in Queensland, where it is known from three disjunct areas: Coominglah State Forest west of Monto with 21 occurrences in AVH (2025), then Callide Timber Reserve northeast of Biloela with 11 occurrences in AVH (2025) and surrounding and within Mount Morgan with four occurrences in AVH (2025). The specimens collected near Mount Morgan ranged from 1984-2001 and were collected on Razor Back Range 3 km west of Mount Morgan. The species is typically found on slopes in hilly sandstone country on shallow sandy to sandy loam soils which are light brown to red in colour and occasionally stony or gravelly. It grows in woodland or open forest communities typically dominated by Eucalyptus decorticans , Corymbia citriodora subsp. variegata , Eucalyptus suffulgens or Eucalyptus acmenoides (DETSI 2025). The species has occasionally been described on the edge of soaks. A population survey was conducted for Grevillea hockingsii . The survey involved transversing all areas within in G. hockingsii was confirmed. In total 67 individuals of G. hockingsii were confirmed within the project area during field surveys. Individuals ranged from seedlings to mature flowering/seeding individuals. All individuals appeared of good health. In addition to the above population, approximately 24.30 ha of essential habitat, and an additional 5.20 ha of suitable habitat, has been mapped for the species within the project area. Suitable habitat for the species, within the project area, has been describe as low woodland to open forests dominated by Corymbia citriodora , Corymbia trachyphloia , Syncarpia glomulifera and/or Acacia spp, on steep slopes and hill crests with shallow, well drained, sandy loam soils derived from sandstone or basalt volcanic rocks. Dumping of mine waste by previous site operators has resulted in land contamination across most of the Mount Morgan Mine. Contaminated runoff and seepage from existing mine infrastructure are actively contributing to land contamination. Prior to mining activities occurring at the Mount Morgan Mine, the headwater of the Mundic Gully flowed north to south before flowing in an easterly direction towards the Dee River. What should be the headwater of the Upper Mundic Creek is now an ephemeral waterbody at the lowest topographical point of the Upper Mundic Gully that drains

Project number: 25B061

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