Volume 2G Appendix R: Part 1 Groundwater

Volume 2G Appendix R: Part 1 Groundwater (pdf)

Contents Pages
Glossary of terms and abbreviations iii
Executive summary v
1 Introduction 1-1
1.1 Overview of the project 1-1
1.2 Project location 1-1
1.3 Secretary’s environmental assessment requirements 1-4
2 Proposed project 2-1
2.1 Project features 2-1
2.2 Construction activities 2-2
2.3 Groundwater specific aspects 2-6
3 Assessment Methodology 3-1
4 Groundwater policy/guidance review 4-1
4.1 NSW Aquifer Interference Policy 4-1
4.2 Water Management Act 2000 (NSW) 4-2
4.3 Water sharing plan for the Greater Metropolitan Region Groundwater Sources 4-3
4.4 Water sharing plan for the Greater Metropolitan Region Unregulated River Water Sources 4-5
4.5 NSW Groundwater Quantity Management Policy 4-5
4.6 NSW Groundwater Quality Protection Policy 4-6
4.7 NSW Groundwater Dependent Ecosystems Policy 4-6
4.8 Risk assessment guidelines for groundwater dependent ecosystems 4-6
4.9 NSW Water Extraction Monitoring Policy 4-6
4.10 Australian groundwater monitoring guidelines 4-7
4.11 Australian Drinking Water Guidelines 4-7
4.12 Australian and New Zealand Guidelines for Fresh and Marine Water Quality 4-7
5 Existing environment 5-1
5.1 Land use 5-1
5.2 Physiography 5-1
5.3 Groundwater occurrence 5-8
5.4 Groundwater levels and movement 5-9
5.5 Regional hydraulic parameters 5-12
5.6 Site hydraulic parameters 5-14
5.7 Water chemistry 5-16
5.8 Acid sulfate soils and acid and metalliferous drainage 5-26
5.9 Existing groundwater users 5-27
5.10 Groundwater dependent ecosystems 5-31
5.11 Environmental values 5-31
5.12 Existing infrastructure 5-32
6 Impact assessment 6-1
6.1 Groundwater modelling 6-1
6.2 Recharge estimates (continues in part 2) 6-8
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Volume 2G Appendix R: Part 2 Groundwater

Volume 2G Appendix R: Part 2 Groundwater (pdf)

Contents Pages
6.2 Recharge estimates (continued from part 1) 6-10
6.3 Potential impacts 6-34
6.4 Summary of impacts relative to the Aquifer Interference Policy 6-42
7 Mitigation measures 7-1
7.1 Groundwater management objectives 7-1
7.2 Groundwater inflow management 7-1
7.3 Monitoring 7-3
7.4 Make good requirements 7-4
7.5 Pollution management 7-5
8 Scope and limitations 8-1
9 References 9-1
Appendix A – Groundwater input data A
Appendix B – Groundwater monitoring plan B
Appendix C – Groundwater geochemical data C