ii Contents 1. Introduction ........................................................................................................................1 1.1 Project Description .....................................................................................................1 1.2 Overview of Technical Assessments ...........................................................................2 1.3 Summary of Effects by Project Element .....................................................................3 2. Wharekirauponga Underground Mine (WUG) ...................................................................4 2.1 Description..................................................................................................................4 2.2 Site Characterisation...................................................................................................5 2.3 Hydrologic and Hydrogeologic Setting .......................................................................6 2.4 Summary of Effects .....................................................................................................8 3. Dual Access Tunnels..........................................................................................................11 3.1 Description................................................................................................................11 3.2 Characterisation........................................................................................................11 3.3 Hydrologic and Hydrogeologic Setting .....................................................................12 3.4 Summary of Effects ...................................................................................................12 4. Willows Farm Infrastructure .............................................................................................13 4.1 Description................................................................................................................13 4.2 Characterisation........................................................................................................14 4.3 Hydrologic and Hydrogeologic Setting .....................................................................14 4.4 Summary of Effects ...................................................................................................15 5. WUG Access Tunnel ..........................................................................................................17 5.1 Description................................................................................................................17 5.2 Characterisation........................................................................................................17 5.3 Hydrologic and Hydrogeologic Setting .....................................................................18 5.4 Summary of Effects ...................................................................................................18 6. Gladstone Open Pit and TSF .............................................................................................20 6.1 Description................................................................................................................20 6.2 Characterisation........................................................................................................21 6.3 Hydrologic and Hydrogeologic Setting .....................................................................21 6.4 Summary of Effects ...................................................................................................22 7. Northern Rock Stack .........................................................................................................26 7.1 Description................................................................................................................26 7.2 Characterisation........................................................................................................26 7.3 Hydrologic and Hydrogeologic Setting .....................................................................27 7.4 Summary of Effects ...................................................................................................28 8. Tailings Storage Facility 3..................................................................................................29 8.1 Description................................................................................................................29 9. References ........................................................................................................................... i Limitations.................................................................................................................................... i
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