Six Mile Creek Dam (Lake Macdonald) Safety Upgrade Project Initial Advice Statement September 2017 TABLE OF CONTENTS 1. INTRODUCTION ........................................................................................................ 1 1.1 Background ................................................................................................................................. 1 1.2 Purpose and scope of the IAS ................................................................................................... 1 1.3 Coordinated Project Declaration ............................................................................................... 2 2. THE PROPONENT .................................................................................................... 4 3. NATURE OF THE PROPOSAL ................................................................................. 5 3.1 Scope of the Project ................................................................................................................... 5 3.2 Land use....................................................................................................................................... 6 3.3 Project need, justification and alternatives considered ......................................................... 9 3.3.1 Alternatives to Project – Risk Reduction Options ........................................................... 10 3.4 Key Project components to be declared ................................................................................ 11 3.5 External infrastructure requirements ...................................................................................... 11 3.6 Project timeframes .................................................................................................................... 11 3.7 Construction and operational processes ............................................................................... 12 3.8 Workforce requirements during construction and operation .............................................. 12 3.9 Economic indicators ................................................................................................................. 12 3.10 Financing requirements and implications ............................................................................. 13 4. LOCATION OF KEY PROJECT ELEMENTS .......................................................... 13 4.1 Location ..................................................................................................................................... 13 4.2 Tenure ........................................................................................................................................ 13 5. DESCRIPTION OF THE EXISTING ENVIRONMENT .............................................. 14 5.1 Natural environment ................................................................................................................. 14 5.1.1 Land ................................................................................................................................ 14 5.1.2 Water ............................................................................................................................... 17 5.1.3 Air .................................................................................................................................... 20 5.1.4 Ecosystems ..................................................................................................................... 20 5.1.5 Flora and fauna ............................................................................................................... 21 5.1.6 Amenity ........................................................................................................................... 25 5.2 Social and economic environment .......................................................................................... 25 5.2.1 Accommodation and housing .......................................................................................... 26 5.2.2 Cultural heritage (Indigenous and non-Indigenous) ........................................................ 26 5.3 Built environment ...................................................................................................................... 27 5.4 Traffic and transport ................................................................................................................. 27 5.5 Land use and tenures ............................................................................................................... 30 5.5.1 Key local and regional land uses .................................................................................... 30 5.5.2 Key local and regional land tenures ................................................................................ 30 5.5.3 Native title ....................................................................................................................... 30 5.6 Planning instruments, government policies .......................................................................... 34 5.6.1 Commonwealth ............................................................................................................... 34 5.6.2 State ................................................................................................................................ 35 6. POTENTIAL PROJECT IMPACTS .......................................................................... 39 6.1 Justification for IAR Process – Potential Impacts ................................................................. 39 6.2 Natural environment ................................................................................................................. 39 6.2.1 Land ................................................................................................................................ 39 6.2.2 Water ............................................................................................................................... 40 6.2.3 Air .................................................................................................................................... 41 6.2.4 Ecosystems ..................................................................................................................... 41 6.2.5 Flora and fauna ............................................................................................................... 42 6.2.6 Amenity ........................................................................................................................... 43 6.3 Social and economic impact .................................................................................................... 44 6.3.1 Accommodation and housing .......................................................................................... 44 6.3.2 Social and recreational services ..................................................................................... 44 6.4 Cultural Heritage ....................................................................................................................... 45 i 6.4.1 Indigenous ....................................................................................................................... 45 6.4.2 Non-indigenous ............................................................................................................... 45 6.5 Built environment ...................................................................................................................... 45 6.6 MNES under EPBC Act ............................................................................................................. 46 7. ENVIRONMENTAL MANAGEMENT AND MITIGATION MEASURES ................... 47 7.1 Justification for IAR Process – Key Concerns and Mitigations ........................................... 47 7.2 Natural environment ................................................................................................................. 49 7.2.1 Land ................................................................................................................................ 49 7.2.2 Water ............................................................................................................................... 49 7.2.3 Air .................................................................................................................................... 50 7.2.4 Flora and fauna ............................................................................................................... 50 7.3 Built environment ...................................................................................................................... 52 7.4 Cultural heritage management plan (Indigenous) ................................................................. 52 7.5 Non-indigenous cultural heritage management .................................................................... 52 7.6 Greenhouse gas management plan ........................................................................................ 52 7.7 Waste management .................................................................................................................. 52 7.8 Hazard and risk, and health and safety .................................................................................. 52 7.9 Environmental management .................................................................................................... 53 8. APPROVALS PROCESS........................................................................................