Mt Keith Satellite Proposal Fauna Review
6.0 Conservation Significant Species
Table 6.1 provides a summary of the species with an elevated conservation ranking that were returned from the database searches. Migratory species, which are identified as Matters of National Environmental Significance (MNES) under the EPBC Act, have been excluded, as there is little (if any) appropriate habitat in the Study Area for any of these species.
For each of the species listed in Table 6.1, an assessment of likelihood of occurrence has been made based on availability of suitable habitat and past records of the species. An assessment of risk to each conservation significant species has then been made, based upon this likelihood of occurrence, together with the scale of potential impact to habitat within the Study Area, and giving consideration to the wider availability of habitat and occurrence of the species. For those species assessed as having the potential to occur within the Study Area, potential habitat has been mapped both within the Study Area and the wider surrounds.
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Table 6.1: Conservation significant species returned from the database searches (excluding migratory species). 4 Species Status under the Suitable Habitat Units in Study Area Locality of Records Recorded from WC Act Study Area [EPBC Act] Burrowing Bettong Schedule 4 NA (extinct) NA (extinct) NA (extinct) (Bettongia lesueur grayii) [Extinct] Night Parrot (Pezoporus Schedule 1 Sandplain supporting mature Spinifex (roosting, nesting) Murchison bioregion (exact location No occidentalis) [Endangered] shrubland, Wanderrie Bank grassy shrublands, bluebush unknown) shrublands and Chenopod plains (foraging). Black-footed Rock-wallaby Schedule 2 Breakaway formations in Hills and Slopes, Sclerophyll Barr Smith Range – South Albion Downs No (Petrogale lateralis lateralis) [Endangered] Shrublands Borefield Malleefowl (Leipoa Schedule 3 Drainage Line Wanjarri Nature Reserve and numerous No ocellata) [Vulnerable] Areas of Internal Drainage – Mulga locations at Yeelirrie Great Desert Skink (Liopholis Schedule 3 Undulating Plains Grass Dominated Kathleen Station No kintorei) [Vulnerable] Peregrine Falcon (Falco Schedule 7 Drainage Line Mt Keith, Wanjarri Nature Reserve No peregrinus) [NA] Brush-tailed Mulgara Priority 4 Undulating Plains Grass Dominated Widespread No (Dasycercus blythi) [NA] Long-tailed Dunnart Priority 4 Hills and Slopes, Sclerophyll Shrublands Mt Keith and Albion Downs Borefield No (Sminthopsis longicaudata) [NA] Central Long-eared Bat Priority 4 Drainage Line Yeelirrie No (Nyctophilus major tor) [NA] Areas of Internal Drainage - Mulga Princess Parrot (Polytelis Priority 4 Drainage Line Wanjarri Nature Reserve (unconfirmed) No alexandrae) [NA] Areas of Internal Drainage – Mulga Striated Grasswren Priority 4 Undulating Plains Grass Dominated Wanjarri Nature Reserve No (Amytornis striatus striatus) [NA]
4 The State and Commonwealth conservation rankings are defined in Appendix 4.
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6.1 Mammals
Three conservation significant mammal species have been recorded either from within the Study Area or the local area: Black-footed Rock-wallaby (Petrogale lateralis lateralis, WC Act: Schedule 2, EPBC Act: Endangered), Brush-tailed Mulgara (Dasycercus blythi DBCA Priority 4), Long-tailed Dunnart (Sminthopsis longicaudata, DBCA Priority 4). One species, the Central Long-eared Bat (Nyctophilus major tor, DBCA Priority 4) has been recorded from the wider area (Yeelirrie 50 km west of the Study Area). Consideration was also given to habitat availability for the Burrowing Bettong (Bettongia lesueur grayii, WC Act Schedule 4, EPBC Act). While the inland subspecies is presumed extinct, the DBCA has translocated individuals from offshore islands (i.e. other subspecies) to the Lorna Glen reserve 150 km north-east of the Study Area.
6.1.1 Black-footed Rock-wallaby (Petrogale lateralis lateralis) WC Act Schedule 2, EPBC Act Endangered
Distribution: The Black-footed Rock-wallaby is known from a series of isolated, patchily distributed populations in Western Australia and the Northern Territory (Pearson 2013, Woinarski et al. 2014). The species’ occurrence 13.5 km west of the Study Area is significant as it appears to represent one of the only records from the Murchison bioregion.
The species is susceptible to predation by foxes and cats and habitat degradation by introduced herbivores.
Ecology: This nocturnal species requires shelter in the form of caves, cliffs and boulder screes during the day. Habitat critical to survival requires sufficient cave and crevice development to provide shelter from extremes of temperature and predators (Pearson 2013). Free water is usually not required unless the animals are occupying sub-optimal habitat that has inferior thermal refuges (Pearson 2013).
Habitat Assessment: Biota completed a desktop habitat mapping exercise over the broader locality surrounding the Development Envelope (Figure 6.1). This exercise mapped approximately 65 km of breakaway representing 30 km2. An extension of the breakaway landform of the Barr Smith Range was found to intersect the Proposal transport corridor.
This potential habitat was further assessed for suitability and occurrence of the species during a targeted field assessment. This assessment found that the breakaway habitat at the 2006 sighting location is characterised by substantial cliffs, shelves and caves to a height of 10 m. It was observed that habitat within and immediately east of the Study Area may be suitable for use by rock-wallaby due to the presence of limited suitably sized caves, cliffs and overhanging structures. However these areas do not contain habitat similar to that from the sighting location and the quality of the habitat within the Proposal transport corridor is unlikely to represent core critical habitat. The breakaway habitat immediately west of the Study Area is very shallow and considered unsuitable for the rock-wallaby.
The Development Envelope, to which all Proposal activity must be constrained, contains 4.1 ha of moderately prospective habitat representing approximately 1.4% of the occurrence of breakaway mapped in the local area (Figure 6.1).
Likelihood of Occurrence: The Black-footed Rock-wallaby is known from a 2006 sighting 13.5 km west of the northern end of the transport corridor (Figure 6.1). Following the 2006 sighting, collection and analysis of scats confirmed they were from Black-footed Rock-wallaby (Bamford 2015). During the recent targeted survey, scats consistent with rock-wallaby were again collected from the known locality, though few in number and aged, with no fresh scats identified. No additional rock-wallaby scats were found despite extensive searching of the breakaway landform. Numerous latrines are generally evident in the refuge areas of rock-wallabies (Jarman and Caprararo 1997).
Five camera traps were placed in areas of prospective habitat found within the range, including a camera at the location of the 2006 sighting and a camera within the Proposal transport
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The Black-footed Rock-wallaby is assessed as having a low likelihood of occurrence within the Study Area for the following reasons: (i) the lack of fresh evidence of rock-wallaby presence anywhere searched on the Barr Smith Range even from where the species was previously recorded, (ii) no records on the camera traps anywhere on the range even in areas of most prospective habitat, (ii) availability of higher quality habitat outside the Study Area than within.
Risk Assessment: the recent targeted survey indicated that the rock-wallaby does not occur within the Study Area or directly east or west of the Study Area, and the proposed transport corridor would therefore not represent a barrier to animal movement or result in potential vehicle collision. A small amount of potential non-core habitat will be disturbed by the proposal (4.1 ha). As a result of the low likelihood of occurrence and minor habitat impact, the risk to the subspecies is assessed as Low.
Plate 6.1: Breakaway habitat from the Study Area showing free face (Photo by Geoff Cockerton).
Plate 6.2: Breakaway habitat from the Study Area (Photo by Geoff Cockerton).
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Figure 6.1: Potential habitat the Black-footed Rock-wallaby within the Study Area and wider area (historical record Shown).
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6.1.2 Brush-tailed Mulgara (Dasycercus blythi) DBCA Priority 4
Distribution: The Brush-tailed Mulgara, Dasycercus blythi, is a medium sized (60-120 g) carnivorous marsupial exhibiting a patchy distribution throughout arid Queensland, the Northern Territory and Western Australia.
Ecology: Maxwell et al. (1996) indicate that the preferred habitat for the Brush-tailed Mulgara largely comprises immature hummock grassland and that larger colonies coincide with better- watered areas such as paleo-drainage channels or drainage lines in sandplain or sand-dune habitats. This latter description is perhaps more applicable to the situation in the Northern Territory than in the Goldfields region of Western Australia.
Habitat Assessment: An assessment of the habitat preferences of the Mulgara on parts of the Mt Keith, Albion Downs, Tarmoola, Weebo and Yeelirrie pastoral leases indicates that the Spinifex Sandplain unit of the Bullimore land system (Pringle et al. 1994) was their primary habitat (Halpern Glick Maunsell 2000). As such, the occurrence of the Bullimore land system was used to provide a general indication of habitat availability as illustrated in Figure 6.2. Vegetation typically comprised sparse eucalypts and/or Acacia species over open Triodia basedowii. The Bullimore land system occurs widely throughout the region (Figure 6.2), with an estimated 3 million hectares across the region encompassed by the Sandstone, Youanmi, Sir Samuel, Duketon, Leonora, Laverton, Menzies and Edjudina 1:250,000 map sheets.
Within the Study Area, 542.2 ha of potential habitat occurs of which 108.1 ha occurs within the Development Envelope.
Likelihood of Occurrence: Early records of the then Schedule 1 Mulgara from the Wanjarri Nature Reserve (Ecologia 1990) resulted in numerous Mulgara surveys being undertaken in the locality, particularly on Mt Keith, Albion Downs and Barwidgee Stations (Halpern Glick Maunsell 1977, 1997, 1999, 2000, Ecologia 1998, ATA 2005b, Biota 2006c). Reflective of this intensive survey effort, numerous populations of Mulgara have been recorded in the wider area (Figure 6.2). An individual was trapped at Site MKM01E in the Bullimore land system 500 m east of the transport corridor section of the Study Area and burrows, and tracks and scats of this species have been recorded from the Bullimore land system to the west of the transport corridor section of the Study Area (Biota 2006c).
Risk Assessment: While the species has been shown to occur within the Study Area, its habitat is much more widely distributed outside the Study Area and the Proposal is unlikely to impact the conservation status of the species or result in a change in abundance over and above normal variation in the area.
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Figure 6.2: Mulgara records in the vicinity of the Study Area and Potential Habitat.
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6.1.3 Long-tailed Dunnart (Sminthopsis longicaudata) DBCA Priority 4
Distribution: This species inhabits rocky, rugged habitat from the Pilbara and adjacent upper Gascoyne region in the west, to the central Northern Territory and South Australia.
Ecology: Records have come from plateaus near breakaways, and from scree slopes and rugged boulder-strewn screes. Moderate numbers of individuals (in excess of 50) have been recorded in the Goldfields region, mostly from stony substrates, particularly fractured to weathered mudstone/siltstone but also breakaways (Mark Cowan, DBCA, pers. comm.).
Habitat Assessment: Mapping of this potential habitat was achieved by viewing available Google Earth (https://www.google.com/earth/) imagery for breakaway habitat. The linear extent of mapped breakaway is approximately 65 km and represents a combined area of approximately 30 km2 (Figure 6.1). Regionally, Hall and Milewski (1994) described breakaways as common throughout the Sandstone-Sir Samuel area, comprising weathered granite faces punctuated by shallow caves and overhangs.
Within the Study Area, 65.1 ha of potential habitat has been mapped while the Development Envelope, contains 4.1 ha (Figure 6.3).
Likelihood of Occurrence: A single individual was recorded from a site to the west of the Mt Keith Mine and within the Albion Downs Borefield (Biota 2010). This species may occur in the Study Area, with core habitat represented by the breakaway areas, that is, the same habitat that has been mapped for the Black-footed Rock-wallaby.
Risk Assessment: This species is relatively common where it occurs and the Study Area falls within its already known distribution. 4.1 ha of the species core habitat occurs within the Study Area and it is much more widely occurring outside the Study Area and so the risk to the species is assessed as low.
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Figure 6.3: Potential habitat for the Long-tailed Dunnart within the Study Area and wider area.
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6.1.4 Central Long-eared Bat (Nyctophilus major tor) DBCA Priority 4
Distribution: The Central Long-eared Bat has a range that encompasses the southern half of Western Australia and much of southwestern South Australia and is perhaps more common than records indicate (see references in Woinarski et al. 2014).
Ecology: This species has been recorded from woodlands and mallee, especially near granite outcrops and old dams, and is likely to roost in tree crevices and beneath exfoliating bark (see references in Woinarski et al. 2014).
Habitat Assessment: The species preference for wooded habitats and trees large enough to support hollows and/or exfoliating bark make the riparian vegetation of the Jones Creek system the species most likely habitat for the species within the Study Area.
Likelihood of Occurrence: BCE (2015) recorded this species from Yeelirrie (65 km west) but the species has not been recorded any closer to the Study Area.
Risk Assessment: The Proposal has been designed to avoid the vegetation of the Jones Creek system and furthermore, the species has not been recorded in the local area. Risk to the Central Long-eared Bat has therefore been assessed as low.
6.1.5 Burrowing Bettong (Bettongia lesueur graii) WC Act Schedule 4
A search of the DBCA Threatened Fauna Database yielded records of the Schedule 4 Burrowing Bettong (Bettongia lesueur graii). The inland subspecies is now considered extinct on the mainland, however, the DBCA has undertaken translocations from offshore Islands and captive bred populations to Lorna Glen, located approximately 150 km northeast of the Study Area.
Distribution: The species’ decline began in the nineteenth century and it had disappeared from Victoria by 1863, but persisted in some parts of Australia until the 1930s and 1940s. The decline seems to have coincided with the establishment of foxes and cats (van Dyck and Strahan 2008). The species had one of the largest geographic ranges of any Australian mammal, but is now extinct through mainland Australia and on Dirk Hartog Island. It remains only on Bernier and Dorre Islands in Shark Bay (Bettongia lesueur lesueur), and on Barrow and Boodie Islands (unnamed subspecies) off the Pilbara coast of Western Australia (Woinarski et al. 2014). However, several “soft” (enclosure style) reintroductions have been initiated at various mainland localities including at Lorna Glen (northeast of Wiluna), where both extant subspecies have been released.
Likelihood of Occurrence: As the Burrowing Bettong is presumed extinct on the mainland (outside of re-introductions). It is highly improbable that this species occurs within the Study Area. Numerous old mounds are evident throughout the broader region, particularly in calcareous soils. This suggests that some habitat types may again be important for this species, should re-introductions succeed at locations like Lorna Glen.
Ecology: The Burrowing Bettong is the only macropod to inhabit burrows on a regular basis. The burrow in which it spends the day may be a simple structure consisting of one or two entrances and a short, shallow curving tunnel; more often there are many entrances to complex warrens with interconnecting deep passageways. On the mainland, warrens were constructed in most types of country where the soil was deep enough. The Burrowing Bettong is nocturnal and gregarious. On the mainland, the species ate tubers and bulbs as well as seeds, nuts and the green parts of some plants (van Dyck and Strahan 2008).
Risk Assessment: The Proposal presents no risk at present, as the species is only present in reserves and so will not occur in the Study Area.
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6.2 Birds
Two WC Act Schedule and two DBCA Priority 4 listed bird species have been recorded in the vicinity of the Study Area, or may occur there based on their known distribution: the Malleefowl (Leipoa ocellata, WC Act Schedule 3, EPBC Act Vulnerable), Peregrine Falcon (Falco peregrinus, WC Act Schedule 7), Princess Parrot (Polytelis alexandrae, Priority 4) and Striated Grasswren (Amytornis striatus striatus, Priority 4).
The Night Parrot (Pezoporus occidentalis Schedule 1) has also been given consideration here given the recent confirmed sighting in the Murchison Bioregion and the release the “Interim guideline for preliminary surveys of night parrot (Pezoporus occidentalis) in Western Australia” (Department of Parks and Wildlife 2017).
6.2.1 Migratory Species
A number of Migratory species were returned from the EPBC Act Protected Matters database search. Although these species may visit ephemeral pools and nearby salt lakes following heavy rains, and some have been recorded from the Mount Keith tailings facility (Donato 2006), these species are unlikely to be dependent on the habitats of the Study Area. Migratory species are therefore not addressed below.
6.2.2 Night Parrot (Pezoporus occidentalis) WC Act Schedule 1, EPBC Act Endangered
The Night Parrot is a small ground-dwelling Parrot endemic to Australia and occurring in arid to semi-arid regions where it requires dense, low vegetation, under or in which they hide during the day. Historical records indicate that the Night Parrot was once widespread and relatively common in the arid zone until late in the 19th Century (Murphy et al. 2017) but then a hiatus in records of almost 100 years followed, despite considerable search effort. Then in 1990 and 2006, two specimens were collected in southwest Queensland with the first photographic evidence presented in 2013 (Dooley 2013). In March this year (2017) there was a confirmed record from the Murchison (Jones 2017). A published article also details a number of sightings in the Lorna Glen and Millrose Station area, which straddles the Murchison/Gascoyne bioregions (Hamilton et al. 2017).
The current descriptions of the species’ habitat preferences are broad, reflecting the wide variety of habitats the species was historically known from. The Department of Parks and Wildlife (2017) guideline details old-growth spinifex (Triodia spp.) as habitat for roosting and nesting as has been recorded in western Queensland (Murphy et al. 2017). Foraging habitats are broadly described as grasses and herbs that may or may not contain shrubs or low trees. Johnstone and Storr (1998) mention sparsely-wooded Triodia spp. near water as the habitat preferred by this species, while Pizzey and Knight (2007) list the following additional habitats: seeding spinifex on stony rises, breakaway country, sandy lowlands, shrubby glasswort, chenopods, succulents on flats around salt lakes, flooded claypans, saltbush, bluebush and bassia associations.
There is little information available on the Night Parrot, making it difficult to quantify the direct cause of decline in this species. The following potential threats have been suggested: predation by feral cats and foxes, degradation of habitat due to fire, grazing or rabbits, reduction in the availability of water due to consumption by feral camels and reduced maintenance of waterholes (Department of the Environment 2016).
Habitat Assessment (Roosting/Nesting): Areas of ring-forming long-unburnt spinifex were found within the Development Envelope but were 30 – 40 cm in height (see Plate 6.3), which we estimate to be functionally too small for nesting by extrapolating from the available information on Night Parrot nest characteristics. The study of Murphy et. al. (2017) describes three nests each consisting of a hollow chamber ranging in size from 20 – 28 cm in a spinifex hummock with each chamber leading to the outside via a tunnel of length 20 – 33 cm. The size of the hummocks was not stated but we infer that they much have been least 40 - 50 cm in size. We assume, based on this information, that the structural elements of a chamber and tunnel are required for nest success and although perhaps the tunnel and chamber size may be tailored somewhat to the
Cube:Current:1194 (Nickelwest Level 1 Fauna):Documents:Yaka 2017 Report Expansion:1194 MKS Fauna Review Rev0.docx 55 Mt Keith Satellite Proposal Fauna Review size of hummock, a minimum size of hummocks of 40 – 50 cm seems reasonable. Very little spinifex of this size was found within the Development Envelope or Study Area, although it is possible that the T. basedowii present would grow to a sufficient size in time.
The potential roosting/nesting habitat within the Development Envelope is part of a continuous extent of the same habitat both with the Study Area and the wider area for which vegetation mapping was available (Figure 6.4). Examples of better potential roosting/nesting habitat were found outside the Study Area as detailed in the targeted survey for Night Parrot (Biota 2017); in Wanjarri Nature Reserve and where listening surveys sites MKS-NIPA-05, MKS-NIPA-06 and MKS- NIPA-08 were located (see Figure 6.4). Particularly MKS-NIPA-08 which was located within a large and relatively open area of low-medium dense spinifex grassland.
Using the broadest definition of potential roosting/nesting habitat as that containing spinifex, the wider area supports 55,430.7 ha, the Study Area supports 351.9 ha, and the Development Envelope intersects a much smaller subset of this (32.2 ha). This represents 0.06% of the occurrence of this habitat type in the wider area.
Habitat Assessment (Foraging): Spinifex would represent potential foraging habitat at times of seeding and may represent an important food source during times of breeding. Breeding has been found to occur opportunistically following large rainfall events in the best studied Night Parrot population in western Queensland (Murphy et al. 2017) and large rainfall events also give rise to mass seeding events in Triodia. Many Triodia species including the T. basedowii of the Study Area (Western Botanical 2017) form seed banks within the hummock and soil (Westoby et al. 1988) which may represent an ongoing food source in this habitat for the breeding birds. Therefore, the areas of potential roosting/nesting habitat have also been included in calculations of available foraging habitat.
Potential foraging habitat within the Study Area was defined using those vegetation units comprising areas of Wanderrie Bank grassy shrublands, spinifex shrublands, bluebush shrublands and chenopod plains (see Figure 3.2 for vegetation unit descriptions). These vegetation units occur broadly across the Study Area including within the Development Envelope (Figure 6.4). The Study Area was mapped as containing 981.2 ha of potential foraging habitat of which 490 ha is intersected by the Development Envelope, which represents 0.7% of its occurrence in the Wider Area.
Likelihood of Occurrence: Targeted surveying for the species comprised of 56 nights of automatic sound recording across nine sites (six within the Study Area and three in the Wider Area) in potential roosting/nesting habitat together with 9.7 hours of targeted listening surveys. No evidence of the Night Parrot was recorded.
The roosting/nesting habitat within the Study Area was considered to be marginally suitable for Night Parrot, and unlikely to support a resident population. Some potential feeding habitat is present in the Study Area, but it is widespread in the region and there are much better potential foraging locations elsewhere.
Consequently the likelihood of Occurrence of Night parrot was considered to be very low.
Risk Assessment: Risk to both roosting/nesting habitat and foraging habitat was assessed as low due to the small area of habitat to be impacted by the Proposal and its marginal suitability for Night Parrot. Assessing the Proposal against the EPBC Act Significant Impact Guidelines (Department of the Environment 2013), it was concluded that none of the significant impact criteria would be met, and the adverse effects on potential core (roosting/nesting) habitat are localised and minor in scale. As a result, the likely impacts to the Night Parrot arising from the action of implementing the Mt Keith Satellite Proposal do not appear to be significant.
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Plate 6.3: Example of spinifex habitat representing potential Night Parrot roosting habitat. Recorded from the transport corridor section of the Study Area (photo Geoff Cockerton).
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Habitat mapping extends approx. 30 km north 260,000 mE 260,000 260,000 mE 260,000 260,000 mE 260,000 260,000 mE 260,000 260,000 mE 260,000 260,000 mE 260,000 260,000 mE 260,000 260,000 mE 260,000 260,000 mE 260,000 260,000 mE 260,000 260,000 mE 260,000 260,000 mE 260,000 260,000 mE 260,000 260,000 mE 260,000 260,000 mE 260,000 260,000 mE 260,000 260,000 mE 260,000 260,000 mE 260,000 260,000 mE 260,000 260,000 mE 260,000 260,000 mE 260,000 260,000 mE 260,000 260,000 mE 260,000 260,000 mE 260,000 260,000 mE 260,000 260,000 mE 260,000 260,000 mE 260,000 260,000 mE 260,000 260,000 mE 260,000 260,000 mE 260,000 260,000 mE 260,000 260,000 mE 260,000 260,000 mE 260,000 260,000 mE 260,000 260,000 mE 260,000 260,000 mE 260,000 260,000 mE 260,000 260,000 mE 260,000 260,000 mE 260,000 260,000 mE 260,000 260,000 mE 260,000 260,000 mE 260,000 260,000 mE 260,000 260,000 mE 260,000 260,000 mE 260,000 260,000 mE 260,000 260,000 mE 260,000 260,000 mE 260,000 260,000 mE 260,000 250,000 mE 250,000 250,000 mE 250,000 250,000 mE 250,000 250,000 mE 250,000 250,000 mE 250,000 250,000 mE 250,000 250,000 mE 250,000 250,000 mE 250,000 250,000 mE 250,000 250,000 mE 250,000 250,000 mE 250,000 250,000 mE 250,000 250,000 mE 250,000 250,000 mE 250,000 250,000 mE 250,000 250,000 mE 250,000 250,000 mE 250,000 250,000 mE 250,000 250,000 mE 250,000 250,000 mE 250,000 250,000 mE 250,000 250,000 mE 250,000 250,000 mE 250,000 250,000 mE 250,000 250,000 mE 250,000 250,000 mE 250,000 250,000 mE 250,000 250,000 mE 250,000 270,000 mE 270,000 250,000 mE 250,000 270,000 mE 270,000 250,000 mE 250,000 270,000 mE 270,000 250,000 mE 250,000 270,000 mE 270,000 250,000 mE 250,000 270,000 mE 270,000 250,000 mE 250,000 270,000 mE 270,000 250,000 mE 250,000 270,000 mE 270,000 250,000 mE 250,000 270,000 mE 270,000 250,000 mE 250,000 270,000 mE 270,000 250,000 mE 250,000 270,000 mE 270,000 250,000 mE 250,000 270,000 mE 270,000 250,000 mE 250,000 270,000 mE 270,000 250,000 mE 250,000 270,000 mE 270,000 250,000 mE 250,000 270,000 mE 270,000 250,000 mE 250,000 270,000 mE 270,000 250,000 mE 250,000 270,000 mE 270,000 250,000 mE 250,000 270,000 mE 270,000 250,000 mE 250,000 270,000 mE 270,000 250,000 mE 250,000 270,000 mE 270,000 250,000 mE 250,000 270,000 mE 270,000 250,000 mE 250,000 270,000 mE 270,000 250,000 mE 250,000 270,000 mE 270,000 270,000 mE 270,000 270,000 mE 270,000 270,000 mE 270,000 270,000 mE 270,000 270,000 mE 270,000 270,000 mE 270,000 270,000 mE 270,000 270,000 mE 270,000 270,000 mE 270,000 270,000 mE 270,000 270,000 mE 270,000 270,000 mE 270,000 270,000 mE 270,000 270,000 mE 270,000 270,000 mE 270,000 270,000 mE 270,000 270,000 mE 270,000 270,000 mE 270,000 270,000 mE 270,000 270,000 mE 270,000 270,000 mE 270,000 270,000 mE 270,000 270,000 mE 270,000 270,000 mE 270,000 270,000 mE 270,000 270,000 mE 270,000 MtMt KeithKeith MineMine mE 270,000
BullimoreBullimore landsystemlandsystemlandsystemlandsystem
MtMt KeithKeith tailingstailings storagestoragestoragestorage facilityfacilityfacilityfacility
MKSNP314-01MKSNP314-01 MKS-NIPA-07MKS-NIPA-07 6,980,0006,980,0006,980,000 mN mNmN MountMount KeithKeith MtMt KeithKeith villagevillage MKSNP654-11MKSNP654-11 MKS-NIPA-06MKS-NIPA-06 6,980,0006,980,0006,980,000 mN mNmN MKS-NIPA-05MKS-NIPA-05 MKSNP724-10MKSNP724-10