REV DATE REVISION DETAILS APPROVED 0 17.06.22 Draft for review. Project WAIHI NORTH Title Erosion and Sediment Control Plan Tailings Storage Facility 3 – Stage 4 Drawn ZW Checked MP Drawing No. ESCP-TSF3-004-01 Sheet No. 10 NOTES 1. All erosion and sediment controls will be installed and maintained in accordance with the Waikato Regional Council Technical Report 2009/02 ‘Erosion and Sediment Control Guidelines for Soil Disturbing Activities’ (TR2009/02). 2. Completed areas to be stabilised in accordance with TR2009/02. 3. All erosion and sediment control measures will be inspected weekly by the site foreman. 4. Site monitoring will be undertaken before and immediately after rain as well as during heavy rainfall events. Any required maintenance or improvements to control measures will be undertaken immediately. Construction Methodology Collection Pond commissioned and will collect runoff from the TSF3 area. All site runoff from the impoundment area to report to the Collection Ponds. PAF material used to continue construction of embankment. KEY Erosion and Sediment Control Clean Water Diversion Dirty Water Diversion Culvert Silt Fence Sediment Retention Pond Placement of PAF in areas where runoff reports to Collection Ponds. SRP-TSF3-06 Catchment area: 5.0ha Total volume: 1,500m3 Dead storage: 450m3 Live storage: 1,050m3 Existing clean water diversion constructed as part of Stage 2 (refer to ESCP-TSF3-002-03). Undisturbed area SRP-TSF3-05 Catchment area: 3.0ha Total volume: 900m3 Dead storage: 270m3 Live storage: 730m3
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