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Roy Hill Mine Desktop Review of Vegetation Mapping Prepared for: Roy Hill Holdings Prepared by:Stantec Australia Pty Ltd September 15, 2017 © Stantec Australia Pty Ltd. All rights reserved. No part of this work may be reproduced in any material form or communicated by any means without the permission of the copyright owner. This document is confidential. Neither the whole nor any part of this document may be disclosed to any third party without the prior written approval of Stantec and Roy Hill Holdings. Stantec Australia Pty Ltd undertook the work, and prepared this document, in accordance with specific instructions from Roy Hill Holdings to whom this document is addressed, within the time and budgetary requirements of Roy Hill Holdings. The conclusions and recommendations stated in this document are based on those instructions and requirements, and they could change if such instructions and requirements change or are in fact inaccurate or incomplete. Stantec Australia Pty Ltd has prepared this document using data and information supplied to Stantec Australia Pty Ltd by Roy Hill Holdings and other individuals and organisations, most of whom are referred to in this document. Where possible, throughout the document the source of data used has been identified. Unless stated otherwise, Stantec Australia Pty Ltd has not verified such data and information. Stantec Australia Pty Ltd does not represent such data and information as true or accurate, and disclaims all liability with respect to the use of such data and information. All parties relying on this document, do so entirely at their own risk in the knowledge that the document was prepared using information that Stantec Australia Pty Ltd has not verified. This document is intended to be read in its entirety, and sections or parts of the document should therefore not be read and relied on out of context. The conclusions and recommendations contained in this document reflect the professional opinion of Stantec Australia Pty Ltd, using the data and information supplied. Stantec Australia Pty Ltd has used reasonable care and professional judgment in its interpretation and analysis of the data. The conclusions and recommendations must be considered within the agreed scope of work, and the methodology used to carry out the work, both of which are stated in this document. This document was intended for the sole use of Roy Hill Holdings and only for the use for which it was prepared, which is stated in this document. Any representation in the document is made only to Roy Hill Holdings. Stantec Australia Pty Ltd disclaims all liability with respect to the use of this document by any third party, and with respect to the use of and reliance upon this document by any party, including Roy Hill Holdings for a purpose other than the purpose for which it was prepared. Stantec Australia Pty Ltd has conducted environmental field monitoring and/or testing for the purposes of preparing this document. The type and extent of monitoring and/or testing is described in the document. Subject to the limitations imposed by the instructions and requirements of Roy Hill Holdings, the monitoring and testing have been undertaken in a professional manner, according to generally-accepted practices and with a degree of skill and care which is ordinarily exercised by reputable environmental consultants in similar circumstances. Stantec Australia Pty Ltd makes no other warranty, express or implied. Maps produced by Stantec Australia Pty Ltd may be compiled from multiple external sources and therefore Stantec Australia Pty Ltd does not warrant that the maps provided are error free. Stantec Australia Pty Ltd does not purport to represent precise locations of cadastral corners or the surveyed dimensions of cadastral boundaries. Stantec Australia Pty Ltd gives no warranty in relation to mapping data (including accuracy, reliability, completeness or suitability) and accepts no liability for any loss, damage or costs relating to any use of the data. Revision Description Author Quality Check Independent Review v1.0 Draft CvdB NB NB v2.0 Draft CvdB & KS NB NB V2 Final CvdB & KS SD NB V3 Final CvdB & KS NB Sign-off Sheet This document entitled Roy Hill Mine: Desktop Review of Vegetation Mapping was prepared by Stantec (“MWH, now part of Stantec”) for the account of Roy Hill Holdings. Any reliance on this document by any third party is strictly prohibited. The material in it reflects the professional judgment of MWH, now part of Stantec, in light of the scope, schedule and other limitations stated in the document and in the contract between MWH, now part of Stantec, and the Client. The opinions in the document are based on conditions and information existing at the time the document was published and do not take into account any subsequent changes. In preparing the document, MWH, now part of Stantec, did not verify information supplied to it by others. Any use which a third party makes of this document is the responsibility of such third party. Such third party agrees that MWH, now part of Stantec, shall not be responsible for costs or damages of any kind, if any, suffered by it or any other third party as a result of decisions made or actions taken based on this document. Prepared by Clinton van den Bergh Reviewed by Natasha Banning Approved by Natasha Banning Table of Contents TABLE OF CONTENTS ....................................................................................................................... I EXECUTIVE SUMMARY .................................................................................................................... I 1. INTRODUCTION AND OBJECTIVES ............................................................................................ 1 2. METHODS ................................................................................................................................... 2 2.1 VASCULAR FLORA SPECIES REVIEW ........................................................................................... 2 2.2 VEGETATION SPOT CHECKS ........................................................................................................ 2 2.3 VEGETATION UNIT DESCRIPTION REVIEW ................................................................................... 6 3. RESULTS AND DISCUSSION ........................................................................................................ 7 3.1 FLORA SPECIES LIST ...................................................................................................................... 7 3.1.1 Baseline (2009) vascular flora list ........................................................................... 7 3.1.2 Updated vascular flora list ..................................................................................... 7 3.1.3 Updated conservation significant flora ................................................................ 8 3.1.4 Updated introduced flora .................................................................................... 11 3.2 VEGETATION SPOT CHECKS ...................................................................................................... 12 3.3 REVIEW OF VEGETATION MAPPING ......................................................................................... 12 3.3.1 Baseline (2009) vegetation association mapping units ................................... 12 3.3.2 Updated vegetation type mapping units ......................................................... 15 4. LIMITATIONS ............................................................................................................................. 19 5. CONCLUSIONS ........................................................................................................................ 20 6. REFERENCES ............................................................................................................................. 21 LIST OF TABLES Table 2-1 Vegetation quadrats spot-checked in 2017 ................................................................ 3 Table 3-1 Breakdown of vascular flora species ............................................................................. 8 Table 3-2 Priority listed flora populations and their conservation ratings within the Roy Hill mine area ............................................................................................................... 9 Table 3-3 Vegetation associations and sub-associations recorded within the Roy Hill mine (ecologia Environment 2009a) .............................................................................. 13 Table 3-4 Summary of changes to ecologia Environment (2009a) vegetation association descriptions ................................................................................................... 16 LIST OF FIGURES Figure 2-1 Location of vegetation spot check sites assessed in 2017 ........................................ 5 Figure 3-1 Location of known populations of priority listed flora from 2009 baseline surveys ................................................................................................................................ 10 Figure 3-2 Map of Roy Hill vegetation distributions with updated vegetation type codes. Descriptions associated with each vegetation type are given in Table 3-4. ............................................................................................................................ 19 LIST OF APPENDICES SUMMARY OF CHANGES TO THE VASCULAR FLORA LIST ............................ A.1 VEGETATION QUADRAT SPECIES