East Leppington Precinct Planning Study Biodiversity, Riparian And
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East Leppington Precinct Planning Study Biodiversity, Riparian and Bushfire Studies Prepared for NSW Department of Planning and Infrastructure July 2012 East Leppington Rezoning Assessment: Biodiversity, Riparian and Bushfire Studies DOCUMENT TRACKING ITEM DETAIL Project Name East Leppington Rezoning Assessment: Biodiversity, Riparian and Bushfire Studies Project Number 11WOLPLA-0006 W:\Synergy\Projects\11WOLPLA\11WOLPLA-0006 Leppington East Precinct Rezoning\Report\Draft File location Reports Prepared by Sally Perry, Emma McIntyre, Katherine Lang Approved by Steven House Status Final Version Number 2 Last saved on 11 July 2012 Cover photos East Leppington This report should be cited as „Eco Logical Australia 2012. East Leppington Rezoning Study: Biodiversity, Riparian and Bushfire Assessment. Prepared for NSW Department of Planning and Infrastructure.‟ ACKNOWLEDGEMENTS This document has been prepared by Eco Logical Australia Pty Ltd with support from the Department of Planning and Infrastructure. Disclaimer This document may only be used for the purpose for which it was commissioned and in accordance with the contract between Eco Logical Australia Pty Ltd and Department of Planning and Infrastructure. The scope of services was defined in consultation with NSW Department of Planning and Infrastructure, by time and budgetary constraints imposed by the client, and the availability of reports and other data on the subject area. Changes to available information, legislation and schedules are made on an ongoing basis and readers should obtain up to date information. Eco Logical Australia Pty Ltd accepts no liability or responsibility whatsoever for or in respect of any use of or reliance upon this report and its supporting material by any third party. Information provided is not intended to be a substitute for site specific assessment or legal advice in relation to any matter. Unauthorised use of this report in any form is prohibited. © ECO LOGICAL AUSTRALIA P T Y L T D i East Leppington Rezoning Assessment: Biodiversity, Riparian and Bushfire Studies Contents Executive Summary ................................................................................................................................ 8 1 Introduction ............................................................................................................................... 10 1.1 Description of project .................................................................................................................. 10 1.2 Study Area .................................................................................................................................. 11 2 Statutory Framework ................................................................................................................ 13 2.1 International ................................................................................................................................ 13 2.2 Commonwealth ........................................................................................................................... 13 2.3 State ........................................................................................................................................... 13 2.4 Local ........................................................................................................................................... 13 3 Terrestrial Biodiversity Assessment ...................................................................................... 14 3.1 Biodiversity certification .............................................................................................................. 14 3.2 EPBC Act Strategic Assessment ................................................................................................ 15 3.3 Methods ...................................................................................................................................... 17 3.3.1 Literature Review ........................................................................................................................ 17 3.3.2 Field Survey ................................................................................................................................ 17 3.4 Vegetation Communities & condition ......................................................................................... 17 3.4.1 Cumberland Plain Woodland ...................................................................................................... 18 3.4.2 Alluvial Woodland ....................................................................................................................... 19 3.4.3 Vegetation Community and Condition Assessment Area Calculations ...................................... 22 3.5 Validated Existing native vegetation area calculations .............................................................. 24 3.6 Fauna .......................................................................................................................................... 32 3.7 other major terrestrial ecology factors ........................................................................................ 33 3.8 Discussion / Recommendations ................................................................................................. 34 3.9 Ecological constraints ................................................................................................................. 35 4 Riparian & Aquatic Assessment ............................................................................................. 38 4.1 Context ....................................................................................................................................... 38 4.2 Study Area .................................................................................................................................. 39 4.3 Methods ...................................................................................................................................... 40 4.3.1 Field Investigations and Top of Bank Mapping .......................................................................... 40 4.4 Results ........................................................................................................................................ 41 4.4.1 Field Investigations and Top of Bank Mapping .......................................................................... 41 4.4.2 Aquatic Habitat Condition Assessment ...................................................................................... 46 © ECO LOGICAL AUSTRALIA P T Y L T D ii East Leppington Rezoning Assessment: Biodiversity, Riparian and Bushfire Studies 4.5 Aquatic Assessment and Threatened Species ........................................................................... 48 4.5.1 Threatened Species ................................................................................................................... 48 4.5.2 Groundwater Dependant Ecosystems ........................................................................................ 49 4.6 Discussion / Recommendations ................................................................................................. 52 4.6.1 Urban Development Principles ................................................................................................... 53 4.6.2 Management and Design of Riparian Corridors ......................................................................... 54 5 Bushfire ..................................................................................................................................... 55 5.1 Aims and Structure of Report ..................................................................................................... 55 5.2 Legislative Requirements ........................................................................................................... 55 5.2.1 Environmental Planning and Assessment Act 1979 .................................................................. 55 5.2.2 Threatened Species Conservation Act 1995 .............................................................................. 55 5.2.3 Rural Fires Act, 1997 .................................................................................................................. 55 5.2.4 Planning For Bushfire Protection Guidelines 2006..................................................................... 56 5.3 Bushfire Hazard Assessment ..................................................................................................... 57 5.3.1 Vegetation................................................................................................................................... 57 5.3.2 Slope ........................................................................................................................................... 57 5.4 Bushfire Hazard Summary ......................................................................................................... 59 5.5 Planning for Bushfire Protection (2006) Assessment ................................................................. 60 5.5.1 Assessment Framework ............................................................................................................. 60 5.5.2 Residential .................................................................................................................................. 60 5.5.3 Special Fire Protection Purpose (SFPP) ...................................................................................