Oceana Gold Waihi North Project Waihi North Project Geochemical Assessment – Geochemistry of Tailings and Overburden, Treatment and Mitigation Revision 0 – 17-Jun-2022 Prepared for – Oceana Gold (New Zealand) Limited – Co No.: 2274246 53 AECOM Table 25 Predicted TSF3 and GOP TSF Decant Chemistry All concentrations reported in mg/L. Decant data for TSF1A and TSF2 (2014-2020) supplied by OGNZL. Adjusted Liquor values were calculated using the head:liquor relationship of s ix processed Gladstone ore samples. The head:liquor ratio of these samples was used to factor the ‘mean liquor’ data using the more complete Gladstone ore head dataset.
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