Supporting Technical Assessments

| | Waihi North Project Air Discharge Assessment - Waihi Surface Facilities | 4396626-1331619777-99 | 16/06/2022 | 3 7.5 Potential Health Effects of Fine Particulates, Respirable Silica, Combustion Emissions from Vehicles and Blast Emissions........................................................................................................ 61 7.6 Potential Vegetation Effects........................................................................................................... 62 7.7 Processing Plant ............................................................................................................................ 62 7.8 Summary of Potential Effects ........................................................................................................ 64 8 Proposed Mitigation Measures....................................................................... 66 8.1 Current Mitigation Measures.......................................................................................................... 66 8.2 Additional Mitigation Measures...................................................................................................... 66 8.3 Mercury .......................................................................................................................................... 67 9 Conclusion ....................................................................................................... 68 Appendices Appendix A – Seasonal and Diurnal Wind Roses Appendix B – Dust Monitoring Results Appendix C – Results of Statistical Analysis of Monitoring Data Appendix D – Summary of the 2021 Emission Testing Results Appendix E – Properties Owned by OGNZL Appendix F – Processing Plant Metal Emission Assessment

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