Wodgina Lithium Project Pipeline Licence PL116 CONSTRUCTION ENVIRONMENT PLAN – PUBLIC DISCLOSURE DOCUMENT Proponent: Wodgina Lithium Pty Ltd Address: 1 Sleat Road, Applecross, WA 6153 Postal Address: Locked Bag 3, Canning Bridge LPO APPLECROSS WA 6153 Corporate contact: David Temple-Smith Phone: +61 8 9329 3729 Email: [email protected] 21 FEBUARY 2019 Revision History Revision Issued Date Authorised By Purpose / Changes Number A 25 May 2018 G Barrett First draft for internal review. Release to regulator; various minor changes / corrections 0 12 June 2018 T Berryman from internal review. Various changes throughout to address responses to Rev 1 3 September 2018 D Temple-Smith 0 from DMIRS (email from Amanda Cortez dated 6 July 2017). Addresses DMIRS Notice of Decision (EARS-EP-74597) and 2 19 October 2018 David Swain accompanying email from Amanda Cortez dated 27 September 2018. 3 14 December 2018 David Swain Amend pipeline trench egress ramp conditions Update CEP to include Appendix 14 – Wodgina 2 Pipeline 4 21 February 2019 David Swain – modification to approved activity Rev 0 TABLE OF CONTENTS 1. DESCRIPTION OF THE ACTIVITY .................................................................................................................. 1 Background, Scope, and Purpose ..................................................................................................... 1 Location ............................................................................................................................................ 2 Built Asset Description ..................................................................................................................... 2 Construction Infrastructure and Resources ..................................................................................... 3 1.4.1. Mobilisation ......................................................................................................................... 3 1.4.2. Construction Right-of-Way .................................................................................................. 3 1.4.3. Ancillary Access and Work Areas ......................................................................................... 4 1.4.4. Fuel Supply, Hazardous Storage, and Servicing ................................................................... 6 1.4.5. Personnel and Accommodation .......................................................................................... 6 1.4.6. Water Supply and Storage ................................................................................................... 7 1.4.7. Borrow and Surplus Earth Material ..................................................................................... 7 1.4.8. Waste Disposal .................................................................................................................... 8 1.4.9. Other Infrastructure ............................................................................................................ 8 Area of Disturbance .......................................................................................................................... 9 Plant and Equipment ........................................................................................................................ 9 Contractors .....................................................................................................................................11 Schedules and Hours of Operation .................................................................................................11 Construction Works ........................................................................................................................12 1.9.1. Overview ............................................................................................................................12 1.9.2. Mobilisation and Site Establishment .................................................................................13 1.9.3. Survey and Set-Out ............................................................................................................13 1.9.4. Clear and Grade .................................................................................................................13 1.9.5. Pipe Stringing and Bending ................................................................................................13 1.9.6. Joint Welding, Testing, and Coating ..................................................................................13 1.9.7. Trenching and Excavation ..................................................................................................14 1.9.8. Lowering-in and Backfill.....................................................................................................14 1.9.9. Special Crossings – Roads ..................................................................................................15 1.9.10. Special Crossings – Watercourses .....................................................................................16 1.9.11. Inlet and Delivery Stations .................................................................................................16 1.9.12. Tie-ins ................................................................................................................................17 1.9.13. Hydrostatic Pipeline Testing ..............................................................................................17 1.9.14. Clean-up and Reinstatement of Work Areas .....................................................................17 1.9.15. Cathodic Protection, Station and Signs .............................................................................18 Pipeline Signage ..............................................................................................................................18 Commissioning .............................................................................................................................. 19 Operations and Maintenance .........................................................................................................19 Final Decommissioning and Rehabilitation ....................................................................................19 2. DESCRIPTION OF THE ENVIRONMENT ......................................................................................................21 Social, Economic, and Tenure .........................................................................................................21 Aboriginal Heritage .........................................................................................................................22 Climate ............................................................................................................................................22 Biogeographic Region .....................................................................................................................23 Land Systems and Soils ...................................................................................................................24 Surface Water .................................................................................................................................24 Groundwater ..................................................................................................................................25 Vegetation and Flora ......................................................................................................................25 2.8.1. W2P northern envelope ....................................................................................................26 2.8.2. W2P Southern envelope ....................................................................................................27 2.8.3. Introduced Flora ................................................................................................................28 Habitat and Fauna ..........................................................................................................................28 2.9.1. Fauna Species of Conservation Significance ......................................................................29 3. ENVIRONMENTAL RISK ASSESSMENT AND MANAGEMENT .....................................................................30 Risk Assessment Methodology .......................................................................................................30 Identification of Sources of Risks and Their Impacts......................................................................30 Risk Classification and Reporting Requirements ............................................................................31 Environmental Management Strategies ........................................................................................31 3.4.1. Overview ............................................................................................................................31 3.4.2. Heritage .............................................................................................................................31 3.4.3. Vegetation, Flora, and Habitat ..........................................................................................33 3.4.4. Fauna .................................................................................................................................35 3.4.5. Soils and Land Use .............................................................................................................39