Works Approval Application – GNCJV Sand Extraction Works Approval and Licence Application Great Northern Connect Joint Venture Works Approval Application - Supplementary Report NorthLink Central Section Sand Extraction Document details Document Number NLCS-DWER-WA 001 Revision Rev 1 1/54 Works Approval Application – GNCJV Sand Extraction Revision History Revision Date Revision description Prepared Reviewed Approval 0 1 Dec 2017 Issued for Review ESR BMD SFB 1 5 Dec 2017 Issued for Information ESR BMD SFB 2/54 Works Approval Application – GNCJV Sand Extraction Table of contents 1. Executive Summary of Application ....................................................................................... 5 1.1 Structure of this Report .......................................................................................................... 6 2. Northlink WA Project ............................................................................................................... 6 2.1 Project scope ......................................................................................................................... 6 2.1.1 General .......................................................................................................................... 6 2.1.2 Separable portions ........................................................................................................ 7 2.1.3 Project features ............................................................................................................. 8 2.2 Main Roads' project and delivery objectives ......................................................................... 9 2.3 Integration within project management framework .............................................................10 3. Subject Land (‘Premises’) .....................................................................................................12 4. Application (‘Proposed Activities’) ......................................................................................16 4.1 Overview ..............................................................................................................................16 4.2 Justification ..........................................................................................................................19 4.3 Previous Experience ............................................................................................................19 4.3.1 Hanson Construction Materials Pty Ltd ...................................................................... 19 4.3.2 BGC Australia Pty Ltd ................................................................................................. 19 4.4 Summary of Proposed Activities .........................................................................................20 4.5 Cost of Proposed Development ..........................................................................................20 4.6 Clearing of Native Vegetation ..............................................................................................23 4.7 Topsoil and Overburden Management ...............................................................................23 4.8 Sand Extraction....................................................................................................................23 4.9 Screening .............................................................................................................................23 4.10 Expected production ............................................................................................................24 4.10.1 Maximum production capacity ................................................................................ 24 4.10.2 Processing throughput ............................................................................................ 24 4.11 Transportation and Traffic Management .............................................................................24 4.11.1 Site Access .............................................................................................................. 24 4.11.2 Traffic Generation .................................................................................................... 25 4.11.3 Refuelling and Servicing / Maintenance ................................................................. 25 4.12 Closure and Rehabilitation Plan ..........................................................................................25 5. Approvals, Permits and Licences ........................................................................................27 5.1 Existing Approvals ...............................................................................................................27 6. Consultation ...........................................................................................................................27 7. Site Investigations and Assessments .................................................................................29 8. Environmental Siting and Biophysical Description ...........................................................29 8.1 Summary ..............................................................................................................................29 8.2 Climate .................................................................................................................................29 8.3 Specified Ecosystems and Significant Natural Areas .........................................................30 8.3.1 Regional / Conservation Reserves ............................................................................. 30 8.3.2 Bush Forever ............................................................................................................... 30 8.3.3 Threatened Ecological Communities (TECS) ............................................................ 30 8.4 Geology, Soils and Topography ..........................................................................................30 3/54 Works Approval Application – GNCJV Sand Extraction 8.5 Acid Sulfate Soils .................................................................................................................30 8.6 Contamination ......................................................................................................................33 8.7 Groundwater ........................................................................................................................33 8.8 Surface Water ......................................................................................................................33 8.9 Wetlands ..............................................................................................................................33 8.10 Vegetation and Flora ...........................................................................................................33 8.11 Threatened and Priority Flora ..............................................................................................40 8.12 Significant Fauna Habitat ....................................................................................................40 8.13 Aboriginal Heritage ..............................................................................................................40 8.14 Residential Receptors..........................................................................................................40 9. Environmental Risks and Management ..............................................................................41 9.1 Fugitive Emissions – Dust ...................................................................................................41 9.1.1 Emission Description................................................................................................... 42 9.1.2 Emission Control ......................................................................................................... 42 9.1.3 Emission Monitoring .................................................................................................... 43 9.2 Noise and Vibration .............................................................................................................47 9.2.1 Emission Description................................................................................................... 48 9.2.2 Ambient Noise Monitoring - Existing Noise Levels ..................................................... 48 9.2.3 Emission Control ......................................................................................................... 48 9.2.4 Enquires, complaints, commendations ....................................................................... 51 9.2.5 Non-conformance, incident and corrective action ...................................................... 51 9.3 Surface Water ......................................................................................................................52 9.4 Groundwater ........................................................................................................................52 9.5 Vegetation and Flora ...........................................................................................................52 9.6 Dieback Management..........................................................................................................52 9.7 Weed Management .............................................................................................................53 9.8 Acid sulphate soils ...............................................................................................................53