Lots 19 - 21 Old Coast Rd, Lake Clifton - Park Home Redevelopment Environmental Impact Assessment Document Beck Advisory science+design COPYRIGHT STATEMENT FOR: Lot 21 Old Coast Rd Park Home Redevelopment Our Reference: 8707-2216-08R Final rev1 Copyright © 1987-2013 Ecoscape (Australia) Pty Ltd ABN 70 070 128 675 Except as permitted under the Copyright Act 1968 (Cth), the whole or any part of this report may not be reproduced by any process, electronic or otherwise, without the specific written permission of the copyright owner, Beck Advisory. This includes microcopying, photocopying or recording of any parts of the report. Neither may the information contained in this report be reproduced, transmitted or stored electronically in any form, such as in a retrieval system, without the specific written permission of Beck Advisory. Quality Assurance Ecoscape (Australia) has implemented a comprehensive range of quality control measures on all aspects of the company’s operation and has Quality Assurance certification to ISO 9001. An internal quality review process has been applied to each project task undertaken by us. Each document is carefully reviewed by senior members of the consultancy team and signed off prior to issue to the client. Draft documents are submitted to the client for comment and acceptance prior to final production. Limitations Statement This report has been exclusively drafted for the needs of Beck Advisory. No express or implied warranties are made by Ecoscape (Australia) Pty Ltd regarding the research findings and data contained in this report. All of the information details included in this report are based upon the existent land area conditions, research provided and obtained, and so forth at the time Ecoscape (Australia) Pty Ltd conducted its analysis into the area. Ecoscape (Australia) Pty Ltd will not be responsible for the application of its recommended strategies by Beck Advisory Please note that the strategies devised in this report may not be directly applicable towards company’s needs or any other specific land area requiring management strategies. We would also warn against the environmental dangers of adapting this report’s strategies to another land area which has not been researched and analysed by Ecoscape (Australia) Pty Ltd. Instead, please contact Ecoscape (Australia) Pty Ltd to provide a tailored report for your area’s needs. Otherwise, Ecoscape (Australia) Pty Ltd accepts no liability whatsoever for a third party’s use of, or reliance upon, this specific report. Direct all inquiries to: Ecoscape (Australia) Pty Ltd 9 Stirling Highway • PO Box 50 North Fremantle WA 6159 Ph: (08) 9430 8955 Fax: (08) 9430 8977 Rev No. Author Approved for Issue Date Draft Rev 0 JN BT Feb 2013 Final Rev 0 JN BT Feb 2013 Final Rev 1 JN BT Mar 2013 © Ecoscape (Australia) Pty Ltd 8707-2216-08R Final rev1 ii iii Table of Contents 1.0 Introduction ....................................................................................................... 6 1.1 Background ............................................................................................................... 6 1.2 Purpose of this Document ........................................................................................ 6 1.3 Proponent Details ..................................................................................................... 7 1.4 Assessment Approach ............................................................................................... 7 1 rev 1.5 Applicable Legislation ............................................................................................... 8 Final 08R 2.0 Proposal Description and Key Characteristics ....................................................... 9 - 2.1 Proposal Overview .................................................................................................... 9 2216 - 2.2 Key Characteristics .................................................................................................... 9 8707 2.3 Justification for Proposal ......................................................................................... 12 2.4 Schedule .................................................................................................................. 13 2.5 Proposal Description ............................................................................................... 13 2.6 Tenure ..................................................................................................................... 13 3.0 Environmental Impact Assessment Methodology .............................................. 14 3.1 Key Environmental Factors ..................................................................................... 14 3.2 Consistency with Environmental Principles ............................................................ 15 4.0 Stakeholder Consultation .................................................................................. 17 5.0 Regional Environment and Social Setting ........................................................... 23 5.1 Physical Environment .............................................................................................. 23 5.2 Land use .................................................................................................................. 28 5.3 Socio-Economic Environment ................................................................................. 29 5.4 Biological Environment ........................................................................................... 30 © Ecoscape (Australia) Pty Ltd (Australia) © Ecoscape 6.0 Key Environmental Factors ................................................................................ 31 6.1 Flora and Vegetation ............................................................................................... 31 6.2 Fauna ....................................................................................................................... 37 6.3 Water Balance ......................................................................................................... 40 6.4 Water Quality .......................................................................................................... 46 6.5 Lake Clifton .............................................................................................................. 50 7.0 Conclusion ........................................................................................................ 56 7.1 Impacts and Mitigation ........................................................................................... 56 7.2 Management Processes outside of the Environmental Protection Act 1986 ......... 59 References ............................................................................................................... 61 Maps ....................................................................................................................... 65 © Ecoscape (Australia) Pty Ltd 8707-2216-08R Final rev1 iii Appendix One: Social Impact Study .......................................................................... 72 Appendix Two: Urban Water Management Plan ....................................................... 74 Appendix Three: Consultation Correspondence ........................................................ 76 Appendix Four: Gemec Underground Storage Tank Removal and Soil Validation Report .............................................................................................................. 78 Appendix Five: Ecoscape 2009 Environmental Impact Report .................................... 80 Appendix Six: Groundwater Monitoring Results ....................................................... 82 Appendix Seven: Geotechnical Investigation ............................................................ 93 Appendix Eight: Wetland Buffer Study ..................................................................... 94 List of Figures Figure 1: Development Plan .............................................................................................. 11 Figure 2: Stormwater Management Design (1 in 100 ARI event plan) ............................. 12 Figure 3: Mean monthly temperature and rainfall at Mandurah Park weather station ................................................................................................................................ 23 List of Tables Table 1: Summary of the Proposal ..................................................................................... 9 Table 2: Physical Elements of Proposal .............................................................................. 9 Table 3: Operation Elements of Proposal ......................................................................... 10 Table 4: Consistency with Principles of Environmental Protection .................................. 15 Table 5: Topics discussed during consultation with key stakeholders ............................. 19 Table 6: PRI results for soil samples ................................................................................. 25 Table 7: Summary of Chemical Laboratory Test Results from Geotechnical Investigations .................................................................................................................... 26 Table 8: Management categories and objectives and recommendations for change ............................................................................................................................... 28 Table 9: DIA Heritage Sites Located within 5 km of the study area. ...............................