Oceana Gold New Zeland Limited Hydrogeology Support for WKP Underground Updated Conceptual Model Numerical evaluation of packer testing, data evaluation, and exploratory data analyses have helped to define patterns and similarities and/or differences between geological zones. Some cross sections were generated to allow for a 2D analysis to evaluate potential refinement of the model. However, based on our data evaluation to date, physical model refinement (i.e., changes to position or shape of model surfaces) is not required for the updated hydrogeologic conceptual model. The updated hydrogeologic conceptual model does not change the location or thickness of vein systems, for example, but elaborates on the hydraulic properties in different parts of the vein system. Rather than update the Leapfrog model surfaces, as part of this task we have developed a 3D database in Leapfrog Geo to support future numerical modelling. The database includes available information of hydrography, geological solids (meshes), topography, drillhole data, packer test results / hydraulic properties, and geotechnical data. Processed information will allow the interpretation of the groundwater system and how it is related to the geological framework. Specific geological discretization will be then defined during the 3D numerical modeling phase, based on these findings. 3. This section describes the results of data analyses and evaluation. 3.1. Packer testing data analysis sheets are contained in Appendix A. Table 3-1 below presents the results of the packer testing analyses, including the test type, interpreted K value, and comparison to estimates made by Golder. Figure 3-1 and Figure 3-2 present graphical correlations and comparisons between analytical results obtained by FloSolutions and empirical estimates made by Golder.
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