Supporting Technical Assessments

GHD | Oceana Gold (New Zealand) Ltd | 12552081 | Waihi North 24 Table E.1 Summary of Gladstone sampling to date Location Type Total samples Sampling commenced Frequency GLD01 GWQ 6 Dec-17 Bi-monthly GLD01a GWQ 6 Dec-17 Bi-monthly GLD02 GWQ 8 Dec-17 Monthly GLD02a GWQ 8 Dec-17 Monthly GLD03 GWQ 9 Jan-18 Monthly GLD03a GWQ 8 Jan-18 Monthly P79-s GWQ 10 Dec-17 Monthly P79-i GWQ 3 May-18 Periodic (Quarterly) p79-d GWQ 2 Jun-18 Periodic OH6 SWQ 800+ Oct-94 Weekly OH11 SWQ 4 Sep-18 Periodic Glad Springs SWQ and flow 4 / 1 Sep-17 Periodic / One-off TB4 SWQ and flow 4 / 1 Sep-17 Quarterly / One-off (low flow) Table E.2 Summary of NRS sampling to date Location Type Total samples Sampling commenced Frequency WRS02 GWQ 2 May-18 Periodic WRS03 GWQ 2 May-18 Periodic WRS03a GWQ 2 Feb-18 Periodic WRS04 GWQ 8 Feb-18 Monthly WRS04a GWQ 8 Aug-18 Monthly WRS05 GWQ 1 May-18 One-off WRS05a GWQ 2 Feb-18 Monthly WRS06 GWQ 8 Feb-18 Monthly DH05a GWQ 8 Feb-18 Monthly DH05 GWQ 9 Apr-18 Monthly WRS07 GWQ 5 Feb-18 Bi-monthly WRS08 GWQ 8 Feb-18 Monthly DH08 GWQ 8 May-06 Monthly OC2 SWQ 500+ May-06 Weekly TB1a SWQ and Flow 200+ / 4 Mar-06 / Oct-18 6 monthly / Periodic WRS TB SWQ 3 Aug-18 Periodic OH3 SWQ 1000+ Aug-07 Monthly Frendrups Flow 4000+ Oct-07 Daily

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