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3 May 2017 Ashley Sizeland Senior HSEC Advisor Aquila Resources

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3 May 2017 Ashley Sizeland Senior HSEC Advisor Aquila Resources PO Box 5385 Brendale Q 4500 Ref: 17014_Ltr01a P 0448 899 649 E [email protected] 3 May 2017 Ashley Sizeland Senior HSEC Advisor Aquila Resources Pty Ltd Level 4, 10 Eagle St GPO Box 2591 Brisbane QLD 4001 Dear Ashley RE: Walton Coal Project - Preliminary findings of post-wet season baseline terrestrial flora and fauna surveys This letter provides a preliminary outline of the results of the post-wet season terrestrial flora and fauna surveys conducted for the Walton Coal Project in April 2017. Outcomes of the post-wet season surveys included: . verification of Queensland Department of Environment and Heritage Protection (EHP) remnant regional ecosystem (RE) mapping (Version 10) for the study area . confirmation fo the presence/absence of Commonwealth Environment Protection and Biodiversity Conservation Act 1999 (EPBC Act) threatened ecological communities (TECs) . preparation of likelihood of occurrence tables (LOOTs) based on habitats identified in the study area . targeted searches and habitat mapping for conservation significant flora and fauna species protected under the Queensland Nature Conservation Act 1992 (NC Act) or Commonwealth EPBC Act, i.e. endangered, vulnerable, near threatened, specialist least concern or migratory species . development of preliminary flora and fauna species inventories for the study area . scoping and survey planning for the dry season flora and fauna surveys. The study area spans two properties, the largest being Lot 5 on HT551 in the west and Lot 100 on RP882349 in the east. The study area is 1,324.8 ha in size and is bordered in the south by the Capricorn Highway and Central Railway Line and in the north by Taunton National Park (Scientific). Survey effort The post-wet season field surveys were undertaken over the following survey periods: . Flora field survey – 6 days conducted between and including 4 – 9 April 2017 . Fauna field survey – 7 days conducted between and including 4 – 10 April 2017. Flora A combination of secondary, tertiary and quaternary vegetation assessment techniques were used as part of the flora survey to field validate the RE mapping for the study area. Field survey methods followed the Methodology for Survey and Mapping of Regional Ecosystems and Vegetation Communities in Queensland, Version 3.2 (Neldner et al. 2012). In total, 16 secondary, 36 tertiary, 65 quaternary and 33 quaternary photo assessment sites were conducted in the study area (Figure 1). Fauna Three fauna trapping sites were installed within the study area, each comprising 25 type A Elliot traps, a set of 4 pitfall and 3 pairs of funnel traps and an infra-red camera. A total of 17 supplementary sites were also conducted. Survey techniques conducted at supplementary sites comprised spotlighting, active searches and/or bird surveys. A total of 5 harp trap sites and 9 Anabat sites were used to target microbats in the study area. Figure 2 illustrates the location of each fauna survey site. Regional ecosystems Remnant vegetation comprising six REs was mapped for the study area (Figure 3). Two of these have an of concern vegetation management and biodiversity status. The remainder are listed as least concern. Table 2 lists the REs that were field-validated as occurring in the study area. The distribution of remnant vegetation was found to be similar to Queensland Government mapping (Attachment A). However, the field survey identified several discrepancies, which included: . reduced distribution of RE 11.3.2 . the presence of RE 11.3.4 (of concern) in lieu of RE 11.3.2 (of concern) in some areas . the presence of RE 11.7.2 (least concern) in lieu of RE 11.5.2 (least concern) in several areas . the spatial extent of the broad patch of the Government mapped RE 11.7.4 (least concern) in the north-west of the study area was found to be more representative of RE 11.5.2 . the absence of RE 11.5.9 (least concern) within the study area . increased distribution of remnant RE 11.7.2 in lieu of non-remnant areas in the south-western portion of the study area. There are no vegetation management wetlands within or adjacent to the study area. A number of 1st and 2nd order streams are present within remnant and non-remnant areas of the study area (Figure 3). 2 Table 2: Field-validated regional ecosystems in the study area RE Short Descriptions VM Act Biodiversity EPBC Act BVG Other Code (Queensland Herbarium Status Status Status 2015) 11.3.2 Eucalyptus populnea Of concern Of concern Endangered 17a Contains woodland on alluvial (although palustrine plains not within wetland in the study swales area) 11.3.4 Eucalyptus tereticornis Of concern Of concern Not listed 16c Floodplain and/or Eucalyptus spp. (other woodland on alluvial than plains floodplain wetlands) 11.5.2 Eucalyptus crebra, Least concern No concern Not listed 18b - Corymbia spp., with E. at present moluccana woodland on lower slopes of Cainozoic sand plains and/or remnant surfaces 11.5.3 Eucalyptus populnea Least concern No concern Not listed 17a - +/- E. melanophloia at present +/- Corymbia clarksoniana woodland on Cainozoic sand plains and/or remnant surfaces 11.7.2 Acacia spp. woodland Least concern No concern Not listed 24a - on Cainozoic lateritic at present duricrust. Scarp retreat zone. 11.7.4 Eucalyptus decorticans Least concern No concern Not listed 12a - and/or Eucalyptus spp., at present Corymbia spp., Acacia spp., Lysicarpus angustifolius woodland on Cainozoic lateritic duricrust 3 Threatened ecological communities The EPBC Act Protected Matters Search Report indicated the potential for five endangered threatened ecological communities (TECs) to occur in the study area as follows: . Brigalow (Acacia harpophylla dominant and co-dominant) . Coolibah - Black Box Woodlands of the Darling Riverine Plains and the Brigalow Belt South Bioregions . Natural Grasslands of the Queensland Central Highlands and northern Fitzroy Basin . Semi-evergreen vine thickets of the Brigalow Belt (North and South) and Nandewar Bioregions . Weeping Myall Woodlands. Regrowth Brigalow vegetation was identified during the field surveys in the central southern portion of the study area on a broad area of clay soils. This vegetation comprised only low regrowth; to a maximum height of approximately 1.5 m. None of this vegetation was of a height, cover, structure or quality that would meet the required condition thresholds for the Brigalow TEC listed above. Patchily distributed regrowth Brigalow was also identified in the north-eastern portion of the study area, where it was found to subsist on lateritic soils. Although also failing the required condition thresholds, this community would have historically been representative of RE 11.7.1, which is not considered a component of the Brigalow TEC. Particular patches of RE 11.3.2, which was identified in the northern portion of the study area, are considered to potentially contribute to the Weeping Myall Woodlands TEC listed above. However, according the listing advice for the TEC, Weeping Myall (Acacia pendula) is required to be a dominant canopy species in order to meet the TEC condition class (TSSC 2008). Weeping Myall was not identified in any communities within the study area. Therefore, RE 11.3.2 in the study area is not considered to represent the Weeping Myall Woodlands TEC. No other vegetation communities in the study area comprise the species or structure that represent a TEC under the EPBC Act. Presence of conservation significant species in the study area The likelihood of conservation significant flora and fauna to occur in the study area is presented in the likelihood of occurrence tables (LOOTs) in Attachments B and C. Habitat mapping was conducted for conservation significant species identified or considered likely to use habitats in the study area. This mapping is based on field-validated RE mapping, literature about habitat preferences and distribution, field observations from the study area, previous experience, where applicable, and state and Commonwealth guidelines for relevant species. This mapping will require refinement once the dry season surveys are conducted, for example the permanency of water sources used in habitat mapping for Squatter Pigeon (southern) (Geophaps scripta scripta) could not be determined during the wet conditions experienced during the April surveys, post Tropical Cyclone Debbie. 4 Flora Initial database searches indicated the potential for 25 threatened or near threatened flora species to occur within the search area (i.e. a 25 km radial area surrounding the boundary of the study area). It is considered that this particularly high number of species is likely a result of the close proximity of Taunton National Park, immediately north of the study area, and Blackdown Table Land National Park, approximately 20 km south of the study area. A number of the species records would have been drawn into the search results from those protected areas. Therefore, some of the database search results are not a useful indication of the potential presence of the species within the study area. Comment about the likelihood of each species to occur in the study area is provided in the LOOT in Attachment B. One conservation significant flora species, Cerbera dumicola (no common name), was identified in the study area. An additional species, Bertya pedicellata (no common name), is considered to potentially occur in the study area. Both of these species are listed as near threatened under the NC Act and not listed under the EPBC Act. They are discussed below. Non-remnant brigalow regrowth in the southern portion of the study area provides marginal habitat potential for two other threatened species, Solanum adenophorum (no common name) and Solanum elachophyllum (no common name), which are both listed as endangered under the NC Act. However, the condition of this Brigalow is such that the likelihood of these species occurring is very low. Nonetheless additional survey effort will be applied to these species during the dry season survey to more comprehensively discount their presence in the study area.
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