Bengalla Mining Company Pty Limited - Rio Tinto Coal Australia

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Rehabilitation & Landscape Management Plan Table 4 <strong>Bengalla</strong> Initial Rehabilitation Completion Criteria Objective Long-term Completion Criteria (i.e. Life of Mine) OVERBURDEN EMPLACEMENT • Internal slopes
Rehabilitation & Landscape Management Plan Objective Long-term Completion Criteria (i.e. Life of Mine) Medium-term Success Indicators (i.e. < 5 years) Short-term Monitoring (i.e. Annually)^ • Minimum of 70% vegetative cover over 80% of rehabilitated areas * • Suitable pasture species dominant • Minimal presence of weeds (esp. Galenia sp) • Weed control and ameliorative measures as necessary • Tree plots recruitment rates are equal to or exceed mortality rates • Grazing conducted in accordance with land classes • Tree plots indicating good growth and mortality rates – nearing completion criteria • Successful small trials of grazing • Monitoring of vegetation and erosion and sediment control as discussed in Section 3.2.5 Surface run-off is not polluting waters off site • Water leaving site must meet EPL 6538 criteria of pH between 6.5 and 9.5 and TSS of < 120 mg/L • Water monitoring results within limits of EPL 6538 and all dirty water retained on site • Monitoring and inspection of water management structures by appropriately qualified person FINAL VOID • Design to stable gradient by geotechnical personnel, if necessary blast • Final high wall meets design requirements, geotechnical stable • Monitoring confirms stability • Monitoring of high wall stability All hazards associated with the final high wall and low wall are controlled • Fencing established along the entire length of the final high wall, preventing pedestrian and live stock access • Berms, trenches and catch benches established at appropriate intervals where necessary • Implementation and ongoing maintenance of fencing • Exclusion of access • Implementation of berms and trenches at regular intervals • Stability of berms and trenches • Regular monitoring of fence condition and restriction of access • Regular monitoring and/or maintenance of berms and trenches Ref: 071025 bmc rehabilitation & landscape mp Page 16
Page 1 and 2: Bengalla Mining Company Pty Limited
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Page 34 and 35: Environmental procedure EP 5.1 EP 5
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Page 56: Table 6 Indicative Vegetation Speci

Bengalla Mining Company Pty Limited - Rio Tinto Coal Australia

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