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 1 Drawn ZW Checked MP Drawing No. ESCP-TSF3-001-03 Sheet No. 3 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. SRP-TSF3-05 Catchment area: 3.0ha Total volume: 900m3 Dead storage: 270m3 Live storage: 730m3 East Gully Fill – 2.8ha SRP-TSF3-05 will be constructed below the fill area. Perimeter bunding will then be constructed around the fill area to divert clean water away from the area. Dirty water runoff will either be piped through the toe bund or pumped over the toe bund to the SRP. Access to fill area TBC. KEY Erosion and Sediment Control Clean Water Diversion Dirty Water Diversion Culvert Silt Fence Sediment Retention Pond Perimeter bunding constructed around the fill area to isolate the earthworks area.
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