Oceana Gold New Zeland Limited Hydrogeology Support for WKP Underground Updated Conceptual Model Table 3-4 summarizes the locations and depths for all 13 points. Point locations are shown in Figure 2-1. Water level elevations from the most recent monitoring event (February 2022) are also listed. The hydrographs for each Piezometer/VWP are presented in Appendix B. Table 3-4 Standpipe piezometers and VWP data Point1 E Projected N Projected Installation Depth Real Z (mamsl) WL-Feb/22 1: Projected E and N coordinates have been applied just to WKP-P03D and WKP-P04D (inclined bores) the others remain the same as the collar A summary of interpreted groundwater elevations for each packer testing interval is shown below in Table 3-5. As shown in this table, most of the calculated water levels are substantially below those measured in shallow piezometers (WKP-01 and WKP-02). Figure 3-3 is a screenshot from the Leapfrog model, with white circles illustrating the interpreted water level for each test interval. Figure 3-4 presents an automatically-interpolated groundwater surface, using all available water levels. The following four figures - Figure 3-5, Figure 3-6, Figure 3-7 and Figure 3-8 show this same interpolated water table in cross-sections corresponding to each of the key angled bores used in hydraulic testing. In these figures, the cylinders represent the packer testing intervals along each borehole, color coded by approximate hydraulic conductivity, and the corresponding white dots indicated the calculated water table elevation for that test interval (all information have been properly labeled to best identify the data). Piezometric levels and their interaction are discussed in more detail in Section 4, which provided a description of the updated conceptual model.
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