Tronox Management Pty Ltd
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TRONOX MANAGEMENT PTY LTD CONSERVATION SIGNIFICANCE ASSESSMENT OF THREATENED AND PRIORITY FLORA KNOWN FROM THE COOLJARLOO AREA August 2013 A.C.N. 088 055 903 Tronox Conservation Significance Assessment DOCUMENT REVISION HISTORY Revision Description Originator Reviewed Date A First Draft TJ DW 24/10/2012 B Second Draft, incorporating TJ DW 27/05/2013 client comments 0 Final TJ NS 26/08/2013 WEC REF: Tiwest12-01-02 DISCLAIMER This document is prepared in accordance with and subject to an agreement between Woodman Environmental Consulting Pty Ltd (“Woodman Environmental”) and the client for whom it has been prepared (“Tronox Management Pty Ltd”) and is restricted to those issues that have been raised by the Client in its engagement of Woodman Environmental and prepared using the standard of skill and care ordinarily exercised by Environmental Scientists in the preparation of such Documents. Any organisation or person that relies on or uses this document for purposes or reasons other than those agreed by Woodman Environmental and the Client without first obtaining the prior written consent of Woodman Environmental, does so entirely at their own risk and Woodman Environmental denies all liability in tort, contract or otherwise for any loss, damage or injury of any kind whatsoever (whether in negligence or otherwise) that may be suffered as a consequence of relying on this document for any purpose other than that agreed with the Client. Woodman Environmental Consulting Pty Ltd Tronox Conservation Significance Assessment EXECUTIVE SUMMARY ........................................................................................................ i PROJECT BACKGROUND ..................................................................................................... 1 METHODOLOGY .................................................................................................................... 1 1. Andersonia gracilis DC. ..................................................................................................... 6 2. Anigozanthos viridis subsp. terraspectans Hopper .......................................................... 12 3. Eremophila glabra subsp. Chlorella (gand.) Chinnock ................................................... 15 4. Macarthuria keigheryi lLpschi ....................................................................................... 18 5. Calectasia palustris (R.L. Barrett & K.W. Dixon) .......................................................... 22 6. Chordifex reseminans B.G. Briggs & L.A.S. Johnson ..................................................... 25 7. Grevillea thelemanniana subsp. Cooljarloo (B.J.Keighery 28 b) .................................... 28 8. Lyginia excelsa B.G. Briggs & L.A.S. Johnson ............................................................. 31 9. Malleostemon sp. Cooljarloo (B. Backhouse s.n. 16/11/88) ............................................ 34 10. Schoenus pennisetis S.T. Blake ................................................................................... 37 11. Hypocalymma sp. Cataby (G.J. Keighery 5151) .......................................................... 42 12. Isopogon panduratus subsp. palustris Hislop & Rye .................................................. 45 13. Onychosepalum microcarpum Meney & Pate ............................................................. 49 14. Stenanthemum sublineare Rye .................................................................................... 52 15. Stylidium aceratum Lowrie & Kenneally ..................................................................... 55 16. Stylidium hymenocraspedum Wege ............................................................................. 58 17. Angianthus micropodioides Benth. ............................................................................. 61 18. Baeckea sp. Moora (R. Bone 1993/1) ........................................................................... 65 19. Baeckea sp. Perth region (R.J. Cranfield 444).............................................................. 69 20. Banksia dallanneyi subsp. pollosta (A.S. George) A.R. Mast & K.R. Thiele .............. 72 21. Beaufortia bicolor Strid .............................................................................................. 75 22. Beaufortia eriocephala W.Fitzg. ................................................................................ 79 23. Conospermum scaposum Benth. ................................................................................. 82 24. Desmocladus biformis B.G. Briggs & L.A.S. Johnson .............................................. 86 25. Eryngium pinnatifidum subsp. palustre Keighery ms .................................................. 89 26. Frankenia glomerata Turcz. ......................................................................................... 92 27. Goodenia perryi Carolin ............................................................................................. 96 28. Hensmania stoniella Keighery .................................................................................... 99 29. Hypocalymma serrulatum Strid & Keighery ............................................................. 104 30. Jacksonia carduacea Meisn. ...................................................................................... 108 31. Lasiopetalum lineare paust ........................................................................................ 111 32. Lepidobolus densus B.G. Briggs & L.A.S. Johnson ms ........................................... 116 33. Leucopogon sp. Yanchep (M. Hislop 1986) ............................................................... 119 34. Melaleuca clavifolia Craven ...................................................................................... 122 Woodman Environmental Consulting Pty Ltd Tronox Conservation Significance Assessment 35. Onychosepalum nodatum B.G. Briggs & L.A.S. Johnson ......................................... 127 36. Platysace ramosissima (benth.) C.Norman ................................................................ 130 37. Schoenus griffinianus K.L. Wilson ............................................................................ 133 38. Stylidium longitubum Benth. ..................................................................................... 137 39. Anigozanthos humilis subsp. chrysanthus Hopper .................................................... 142 40. Banksia platycarpa (A.S. George) A.R. Mast & K.R. Thiele .................................... 148 41. Chordifex chaunocoleus (F.Muell.) B.G.Briggs & L.A.S. Johnson ........................... 153 42. Conostephium magnum Cranfield ............................................................................ 157 43. Eucalyptus macrocarpa subsp. elachantha Brooker & Hopper ................................ 161 44. Grevillea saccata Benth. ............................................................................................ 167 45. Ornduffia submersa (Aston) Tippery & Les ............................................................ 174 46. Schoenus natans (F.Muell.) Benth. .......................................................................... 180 47. Thysanotus glaucus Endl. .......................................................................................... 185 48. Verticordia lindleyi schauer subsp. lindleyi............................................................... 189 REFERENCES ...................................................................................................................... 197 Woodman Environmental Consulting Pty Ltd Tronox Management Pty Ltd Conservation Significance Assessment EXECUTIVE SUMMARY Tronox Limited (Tronox) operate a mineral sands mine located at Cooljarloo, approximately 160 km north of Perth in the Northern Sandplains Region of Western Australia. Mining commenced at Cooljarloo in 1989 at Mullering Farm. Since this time both dry and dredge mining has occurred across the project area and into the Falcon area. Tronox propose to expand their current mining operations to Cooljarloo West, which is located south-west of Falcon and west of the main Cooljarloo operations. Several baseline flora and vegetation assessments, conservation significant flora surveys and impact assessments have been conducted over the project tenements since 2006 which have identified several conservation significant flora taxa as occurring within the project area. This data has been entered into an in-house database (managed by Tronox in conjunction with Iluka Resources Limited) of conservation significant flora taxa records known from within their lease areas, including the leases at Dongara. Records include ones held by the Department of Environment and Conservation (DEC), as well as consultant information (e.g. records collected on behalf of Tronox by Woodman Environmental and other consultants). All available data on these taxa was collated and reviewed with the aim of providing information on the known populations of these taxa and to make recommendations on changes to their conservation status. A total of four Threatened, six Priority One taxa, six Priority Two taxa, 22 Priority 3 taxa and 10 Priority 4 taxa are listed as occurring within the Cooljarloo West area by the Department of Environment and Conservation and Tronox. The results of the review of known population data for these taxa is summarised below. Taxa Current Recommended Comments Status Status Further survey required to locate additional populations Andersonia gracilis