Supporting Technical Assessments

SECTION 2 Environmental Setting C:\D Data\GWS C Drive\GWS\Client Files\1344 OGL - WKP\4 Deliverables\WKP Final Draft Report\June Report\WAI-985-000-REP-LC-0030. Final_Rev_0.docx 4 being 160 m RL in the southwest, falling to 100 m RL in the northeast over a distance of 1 km. Figure 2 shows the topography surrounding the location of the Wharekirauponga deposit. Figure 2 General Topography in the Wharekirauponga Catchment Area 2.3 Hydrology The hydrology of the Wharekirauponga surface water catchment area and surrounds are included in a study by GHD (April 2022) and summarised herein. The catchment area of the Wharekirauponga Stream is 14.5 km2 and with 2.17 m/year rainfall, the average daily rainfall volume reporting to the catchment is in the order of 86,200 m3/d. The catchment drainage pattern is to the northeast towards Whangamata as shown on Figure 3.

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