REV DATE REVISION DETAILS APPROVED 0 07.06.22 Draft for review. Project WAIHI NORTH Title Erosion & Sediment Control Plan Willows Road – Surface Facilities Area Drawn ZW Checked MP Drawing No. ESCP-WR-001-02 Sheet No. 2 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 on a daily basis 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. Noise bund, carpark area and effluent disposal area earthworks diverted to Detention Pond for treatment during earthworks phase. Area – 1ha. Dirty water pipe crossing overland flow path to be 300 mm diameter smooth bore pipe. KEY Erosion and Sediment Control Clean Water Diversion Dirty Water Diversion Culvert Super Silt Fence Sediment Retention Pond Decanting Earth Bund Emergency spillway from Detention Pond Dirty water directed to Detention Pond via 1200mm diameter culvert (designed by BECA). Permanent stream culvert. Size and installation methodology TBC. Detention Pond Design volume: 5,000m3 Fitted with concrete manhole, 300mm outlet pipe and 3x Tbars during enabling earthworks phase. CWD – SFA (1ha)
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