Part 8 Aquatic Ecology Assessment
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Amended Rocky Hill Coal Project Part 8 Aquatic Ecology Assessment Development Application No. SSD 5156 Prepared by: Cardno Ecology Lab June 2016 This page has intentionally been left blank ABN: 46 114 162 597 Aquatic Ecology Assessment Prepared for: R.W. Corkery & Co. Pty Limited 1st Floor, 12 Dangar Road PO Box 239 BROOKLYN NSW 2083 Tel: (02) 9985 8511 Email: [email protected] On behalf of: Gloucester Resources Limited Level 37 Riverside Centre 123 Eagle Street BRISBANE QLD 4000 Tel: (07) 3006 1830 Fax: (07) 3006 1840 Email: [email protected] Prepared by: Cardno NSW/ACT Pty Ltd Trading as Cardno Ecology Lab Level 9, The Forum 203 Pacific Highway ST LEONARDS NSW 2065 Tel: (02) 9496 7700 Email: [email protected] June 2016 GLOUCESTER RESOURCES LIMITED SPECIALIST CONSULTANT STUDIES Amended Rocky Hill Coal Project Part 8: Aquatic Ecology Assessment Report No. 806/14 This Copyright is included for the protection of this document COPYRIGHT © Cardno NSW/ACT Pty Ltd T/as Cardno Ecology Lab, 2016 and © Gloucester Resources Limited, 2016 All intellectual property and copyright reserved. Apart from any fair dealing for the purpose of private study, research, criticism or review, as permitted under the Copyright Act, 1968, no part of this report may be reproduced, transmitted, stored in a retrieval system or adapted in any form or by any means (electronic, mechanical, photocopying, recording or otherwise) without written permission. Enquiries should be addressed to Cardno Ecology Lab. 8 - 2 SPECIALIST CONSULTANT STUDIES GLOUCESTER RESOURCES LIMITED Part 8: Aquatic Ecology Assessment Amended Rocky Hill Coal Project Report No. 806/14 FOREWORD Since the exhibition of the Environmental Impact Statement for the Rocky Hill Coal Project in 2013, Gloucester Resources Limited has reached an agreement with Yancoal Australia Limited to utilise the existing facilities at the nearby Stratford Mining Complex to process and despatch coal mined from the Rocky Hill Mine Area. Consequently, Gloucester Resources Limited has amended the Rocky Hill Coal Project to provide for the transportation of sized coal to the Stratford Mining Complex via a private haul road and no longer intends to construct or use the previously proposed Rocky Hill coal handling and preparation plant (CHPP), overland conveyor, rail loop and train load-out facility. In addition, the amended Project would no longer involve the development of the formerly proposed Weismantel Pit. For the purposes of this report, the 2013 Rocky Hill Coal Project is referred to as the “2013 Project” whilst the amended Rocky Hill Coal Project is referred to as the “amended Project”. It is noted that Appendix 8 presents an overview of the key differences between the aquatic ecology assessment for the 2013 Project and the amended Project. This report effectively presents an update of the 2013 Aquatic Ecology Assessment in light of these amendments to the Rocky Hill Coal Project. 8 - 3 GLOUCESTER RESOURCES LIMITED SPECIALIST CONSULTANT STUDIES Amended Rocky Hill Coal Project Part 8: Aquatic Ecology Assessment Report No. 806/14 This page has intentionally been left blank 8 - 4 SPECIALIST CONSULTANT STUDIES GLOUCESTER RESOURCES LIMITED Part 8: Aquatic Ecology Assessment Amended Rocky Hill Coal Project Report No. 806/14 CONTENTS Page COMMONLY USED ACRONYMS .......................................................................................................... 8-8 EXECUTIVE SUMMARY......................................................................................................................... 8-9 1. GENERAL INTRODUCTION ...................................................................................................... 8-13 1.1 BACKGROUND, AIMS AND SCOPE ............................................................................ 8-13 1.2 OVERVIEW OF THE AMENDED PROJECT ................................................................. 8-14 1.3 THE SITE AND THE STUDY AREA .............................................................................. 8-17 2. RELEVANT LEGISLATION ........................................................................................................ 8-18 2.1 INTRODUCTION ............................................................................................................ 8-18 2.2 COMMONWEALTH LEGISLATION ............................................................................... 8-18 2.3 STATE LEGISLATION ................................................................................................... 8-18 2.4 LOCAL ENVIRONMENTAL PLANS ............................................................................... 8-21 3. GOVERNMENT REQUIREMENTS AND MATTERS FOR THE AMENDED PROJECT ........... 8-22 4. DESCRIPTION OF THE AQUATIC ENVIRONMENT ................................................................ 8-24 4.1 REVIEW OF EXISTING INFORMATION ....................................................................... 8-24 4.1.1 Physical Setting, Land Use and Climate ........................................................... 8-24 4.1.2 Surface Waters .................................................................................................. 8-25 4.1.3 Groundwater Systems ....................................................................................... 8-26 4.1.4 Aquatic Habitats and Biota ................................................................................ 8-27 4.1.5 Stygofauna ........................................................................................................ 8-28 4.2 FIELD STUDIES ............................................................................................................. 8-31 4.2.1 Field and Laboratory Methods ........................................................................... 8-31 4.2.2 Laboratory Methods ........................................................................................... 8-36 4.2.3 Data Analysis ..................................................................................................... 8-36 4.2.4 Results –Surface Waters ................................................................................... 8-38 4.2.5 Results - Stygofauna ......................................................................................... 8-58 5. THREATENED SPECIES ISSUES FOR AQUATIC ECOSYSTEMS ........................................ 8-64 5.1 METHODS...................................................................................................................... 8-64 5.2 RESULTS ....................................................................................................................... 8-64 5.2.1 Listings under the EPBC Act ............................................................................. 8-65 5.2.2 Threatened Species Conservation Act 1995 (TSC Act) .................................... 8-66 5.2.3 Fisheries Management Act 1994 (FM Act) ........................................................ 8-67 6. ASSESSMENT OF IMPACTS .................................................................................................... 8-69 6.1 SUMMARY OF ASPECTS OF THE AMENDED PROJECT RELATING TO AQUATIC ECOLOGY ...................................................................................................................... 8-69 6.1.1 Key Mine Components Relevant to Aquatic Ecology ........................................ 8-69 6.1.2 Water Management ........................................................................................... 8-71 6.2 IMPACTS ON AQUATIC ECOSYSTEMS ...................................................................... 8-75 6.2.1 Surface Water Ecosystems ............................................................................... 8-75 6.2.2 Stygofauna ........................................................................................................ 8-78 8 - 5 GLOUCESTER RESOURCES LIMITED SPECIALIST CONSULTANT STUDIES Amended Rocky Hill Coal Project Part 8: Aquatic Ecology Assessment Report No. 806/14 CONTENTS Page 6.3 CUMULATIVE IMPACT ASSESSMENT ........................................................................ 8-78 6.4 CONSIDERATION OF MITIGATION MEASURES ........................................................ 8-80 7. ENVIRONMENTAL MANAGEMENT AND MONITORING ........................................................ 8-81 8. ACKNOWLEDGEMENTS ........................................................................................................... 8-82 9. REFERENCES ............................................................................................................................ 8-83 APPENDICES Appendix 1 Key to Study Site Labels used for the Original Site Inspection (19-20 October 2010) and the Subsequent Field Assessments (15-19 November 2010; 1-2 February 2016) of the Study Area .................................................................................. 8-89 Appendix 2 River Descriptors, Categories and Values used in the Modified Riparian, Channel and Environmental Inventory .......................................................................................... 8-93 Appendix 3 Fish Habitat Classification for Watercourses .................................................................. 8-97 Appendix 4 Water Quality Measurements taken in situ at 19 Sites within the Study Area in 2010 and at 5 sites in 2016 .......................................................................................... 8-101 Appendix 5 Macroinvertebrate Assemblage Data for Pool Edge