Environmental Assessment Attachment 2 3.3 Biodiversity
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Environmental Assessment: Proposed Wind Farm, Gullen Range NSW 3.3 Biodiversity assessment 14 nghenvironmental Prepared for Gullen Wind Farm Pty. Ltd. Proposed development the Gullen Range wind farm, southern tablelands of New South Wales Biodiversity Assessment prepared by July 2008 nghenvironmental prints all documents on sugar cane paper made from 100% bagasse (a by-product of sugar production). Document Verification Job title Proposed Development of the Gullen Range wind farm southern tablelands of New South Wales Document Title Biodiversity Assessment File Location \\Server\NGH-Active\Projects\Epuron\Goulburn wind farms\Biodiversity Revisio Date Prepared by Checked by Approved by n 1 31-07- name Brooke Marshall name Nick Graham-Higgs name Nick Graham-Higgs 07 Sign. Sign. Sign. 31-07- name Steve Sass name Steve Sass name 07 Sign. Sign. Sign. 13-03- name Brooke Marshall name Nick Graham-Higgs name Nick Graham-Higgs 08 Sign. Sign. Sign. Post 16-07- name Brooke Marshall name Nick Graham-Higgs name Nick Graham-Higgs validation 08 Sign. Sign. Sign. 1/216 carp street (po box 470) bega nsw 2550 australia t 61 2 6492 8333 f 61 2 6494 7773 web: www.nghenvironmental.com.au email: [email protected] 206/410 elizabeth street surry hills 1/44 fitzmaurice st (po box 5464) wagga wagga 9b jingarie pl dunsborough sydney nsw 2073 australia nsw 2650 australia wa 6281 australia t 61 2 9499 4310 f 61 2 9499 4311 t 61 2 6971 9696 f 61 2 6971 9693 t 61 8 9756 7993 f 61 2 6494 7773 Biodiversity Assessment for proposed Gullen Range Wind Farm sites Table of Contents 1. INTRODUCTION ................................................................................. 1 2. THE PROPOSAL ................................................................................ 3 2.1. Description of the locations .................................................................... 3 2.2. Proposed works and associated impacts .............................................. 9 2.2.1. Proposed works ...................................................................................................... 9 2.2.2. Associated impacts ................................................................................................. 9 3. REGIONAL CONTEXT ...................................................................... 13 3.1.1. Bioregion and subcatchment overview ................................................................. 13 3.1.2. Regional flora ........................................................................................................ 13 3.1.3. Regional fauna ...................................................................................................... 14 3.1.4. Corridors ............................................................................................................... 14 3.1.5. Matters of national significance ............................................................................ 16 4. FLORA AND ECOLOGICAL COMMUNITIES .................................. 17 4.1. Approach and methodology .................................................................. 17 4.1.1. Preliminary assessments ...................................................................................... 17 4.1.2. Survey effort and limitations ................................................................................. 17 4.2. Results ..................................................................................................... 19 4.2.1. Vegetation types ................................................................................................... 19 4.2.2. Disturbance and weeds ........................................................................................ 23 4.2.3. Plant species of conservation significance ........................................................... 29 4.2.4. Vegetation communities of conservation significance .......................................... 29 5. FAUNA .............................................................................................. 34 5.1. Approach and methodology .................................................................. 34 5.1.1. Preliminary assessments ...................................................................................... 34 5.1.2. Survey effort and limitations ................................................................................. 34 5.2. Survey results ......................................................................................... 42 5.2.1. Fauna habitat in the study area ............................................................................ 42 5.2.2. Species recorded onsite ....................................................................................... 47 5.2.3. Threatened species .............................................................................................. 49 6. CONSTRAINTS SUMMARY ............................................................. 53 6.1.1. Kialla ..................................................................................................................... 53 6.1.2. Bannister............................................................................................................... 53 6.1.3. Pomeroy ............................................................................................................... 53 6.1.4. Gurrundah............................................................................................................. 54 6.1.5. Access and electricity easements route assessment ........................................... 59 July 2008 i nghenvironmental Biodiversity Assessment for proposed Gullen Range Wind Farm sites 7. DISCUSSION OF IMPACTS AND MITIGATION MEASURES ......... 62 7.1. Construction impacts ............................................................................. 62 7.2. Operational impacts ............................................................................... 64 7.2.1. Direct impacts (blade strike) ................................................................................. 64 7.2.2. Indirect impacts (habitat utilisation) ...................................................................... 66 7.2.3. Decommissioning impacts .................................................................................... 68 8. CONCLUSION AND MITIGATION SUMMARY ................................ 69 8.1. Direct habitat impacts - offsetting ......................................................... 69 8.2. Direct impacts – fauna monitoring ........................................................ 69 8.3. Construction impacts ............................................................................. 70 8.4. Operational impacts ............................................................................... 71 8.5. Decommissioning impacts .................................................................... 71 9. REFERENCES .................................................................................. 72 APPENDICES ......................................................................................... - 1 - APPENDIX A: FLORA LIST ................................................................... - 2 - A.1: Composite flora list .................................................................................. - 3 - A.1: Species lists for areas which could be regarded as belonging to an Endangered Ecological Community ............................................................. - 10 - APPENDIX B: FAUNA LIST ................................................................. - 17 - B.1: Faunal species recorded during surveying for each location ............ - 18 - B: 2 Microbat analysis ................................................................................... - 23 - APPENDIX C: FOLLOW-UP SPRING REPTILE SURVEY .................. - 24 - APPENDIX D: THREATENED SPECIES EVALUATION ..................... - 30 - D.1 Flora impact evaluation .......................................................................... - 31 - D.2 Fauna impact evaluation......................................................................... - 35 - APPENDIX E: ASSESSMENT OF SIGNIFICANCE ............................. - 47 - E.1 Seven-part Test (TSC Act listed species and communities): .............. - 49 - E.2 Principal significant impact assessment (EPBC Act listed species and communities).................................................................................................. - 55 - E2.1 EEC ..................................................................................................................... - 55 - E2.2 Threatened flora .................................................................................................. - 57 - E2.3 Threatened fauna ................................................................................................ - 58 - E2.4 Migratory species ................................................................................................ - 61 - APPENDIX F: BIRD RISK ASSESSMENT .......................................... - 62 - F.1 Risk assessment ...................................................................................... - 63 - F.2 Conclusion ............................................................................................... - 67 - July 2008 ii nghenvironmental Biodiversity Assessment for proposed Gullen Range Wind Farm sites APPENDIX G: MATTERS OF NATIONAL SIGNIFICANCE REPORT - 69 - APPENDIX H: PHOTOGRAPHS .......................................................... - 70 - H.1 Kialla ........................................................................................................