GHD | Oceana Gold (New Zealand) Ltd | 12552081 | Waihi North 132 Table 6.3 Hydraulic conductivity values Geological unit (Whiritoa Andesite) K (m/s) Anisotropy K Source Residual soils 1 x 10-8 0.5 PSD analysis (Appendix D) Weathered tuff 1 x 10-8 0.1 WFBH006 and WFBH012 Andesite 3 x 10-8 1 WNDD007
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