Supporting Technical Assessments

GHD | Oceana Gold (New Zealand) Ltd | 12552081 | Waihi North 23 Contents: Table E.1 Summary of Gladstone sampling to date Table E.1 Summary of Gladstone sampling to date Table E.1 Summary of Gladstone sampling to date Table E.2 Summary of NRS sampling to date Table E.3 TSF3 sampling to date Table E.4 Summary of Gladstone groundwater quality Table E.5 Summary of Gladstone surface water quality Table E.6 Summary of NRS groundwater quality Table E.7 Summary of NRS surface water quality Figure E.1 Piper Plot – Gladstone Groundwater Quality (P79-d June 2018. GLD04 well series October 2020. All other bores September 2018). (Excludes GLD01b which is recorded as dry). Figure E.2 Piper Plot – Gladstone surface water quality (TB5 September 2019. All other samples September 2017) Figure E.3 Piper Plot – NRS groundwater quality (November 2019) Figure E.4 Piper Plot – NRS surface water quality (June 2019) Figure E.5 Piper Plot – NRS surface water quality (September 2019) Figure E.6 Piper plot – TSF3 water quality (April 2018) Figure E.7 Piper plot – TSF3 water quality (May 2018) Figure E.8 Piper plot – TSF3 water quality (shed spring vs. RU10)

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