U:\2021\BM210482_IBo_Waihi_North_Project\Documents\WNP_Freshwater_Report_May_2022\FINAL_Fres hwater_Report_FOR DELIVERY_June 2022\FINAL DELIVERED 17 JUNE 2022\WAI-985-000-REP-LC0007_Rev0_Freshwater_20220621_FINAL.docx CONTENTS Executive Summary i 1.0 Introduction 1 1.1 Background 1 1.2 Approach 1 1.3 Report Structure 2 2.0 Project Location and Description 3 2.1 Project Location 3 2.2 Project Description 3 2.3 Ecological Context 4 3.0 The Ohinemuri River Catchment 6 3.1 Location 6 3.2 Land use 6 3.3 Overview of catchment water quality 7 3.4 Recreational Fishing (trout) 7 4.0 Existing Ecological Enhancements 8 5.0 Statutory Definitions and Assessment Criteria 9 5.1 Introduction 9 5.2 NPS-FM and NESF 10 6.0 Description of Methods 13 6.1 Wetland Delineation and Ecological Survey 13 6.2 Desktop Assessment and Survey of Freshwater Ecology 13 6.3 Assessment of Water Quality 13 6.4 Assessment of Ecological Values and Effects of WNP 14 6.5 Evaluating the Level of Effect 16 6.6 Effects Management 18 7.0 Wharekirauponga Underground Mine 19 7.1 Introduction 19 7.2 Wharekirauponga Project Activities 19 7.3 Wharekirauponga Stream 20 7.4 Waiharakeke Stream 26 7.5 Wetland Delineation and Ecological Values 28 7.6 Freshwater Ecology Values 29
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