EGL Ref: 9215 23 June 2022 Page 71 This report shall only be read in its entirety. File: WAI-985-000-REP-LC-0002_Rev0.docx. TABLE 11: OPTIONS FOR TAILINGS STORAGE AND MINE OVERBURDEN DISPOSAL THAT DO NOT MEET PROJECT SCHEDULING AND LAND OWNERSHIP REQUIREMENTS Option Tailings Storage Locations Mine Overburden Disposal Locations Additional working stockpile capacity Rehabilitation Considerations Other Considerations No. Description A TSF North of Storage 2 and GOP Tailings Slurry TSF TSF North of Storage 2 RL145 6.8Mt GOP TSF Tailings Slurry 2.1Mt TSF North of Storage 2 RL145 12.0Mt GOP TSF Backfill 5.3Mt UG Backfill WUG 4.7Mt MUG 4.4Mt Extend East Stockpile to manage waste 4.7Mt SNA impacted north of Storage 2. Affects Orchards Property B Storage 3 Dry Stack TSF and GOP Backfill with Rock Storage 3 TSF Dry Stack RL155 8.8Mt Storage 3 TSF Dry Stack RL155 8Mt GOP Partial Rock Backfill 14Mt UG Backfill WUG 4.7Mt MUG 4.4Mt Northern Rock Stack Stage 1 Up to 14Mt (0 Mt required in closure) GOP Hill Replacement 18Mt Not sufficient material to backfill GOP to full profile. Avoids SNA at Storage 3 C Storage 1A Raise to RL192 Tailings Slurry TSF and GOP Tailings Slurry TSF Storage 1A TSF Tailings Slurry RL192 4.8Mt GOP TSF Tailings Slurry 2.1Mt Storage 1A TSF RL192 7.8Mt GOP TSF Backfill 5.3Mt UG Backfill WUG 4.7Mt MUG 4.4Mt Northern Rock Stack Stage 1 Up to 14Mt (8.9Mt required) GOP TSF dry cap or pond/wetland Tailing Storage not sufficient
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