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Moorebank Intermodal Terminal Project Environmental Impact Statement Volume 6 October 2014 Technical Paper 6 Assessment Paper 6 - Surface Water Technical Surface Water Assessment Contents of the EIS EIS Summary Chapter 1 – Introduction Chapter 2 – Site context and environmental values Chapter 3 – Strategic context and need for the Project Chapter 4 – Planning and statutory requirements TECHNICAL PAPERS Chapter 5 – Stakeholder and community consultation Chapter 6 – Project development and alternatives EIS Volume 3 Chapter 7 – Project built form and operations Chapter 8 – Project development phasing and construction 1 – Traffic and Transport Impact Assessment VOLUME 1a Chapter 9 – Project sustainability 2 – Noise and Vibration Impact Assessment Chapter 10 – Impact assessment approach Chapter 11 – Traffic, transport and access EIS Volume 4 Chapter 12 – Noise and vibration 3 – Ecological Impact Assessment (with Chapter 13 – Biodiversity associated Biodiversity Offset Strategy) Chapter 14 – Hazards and risks 4 – Preliminary Risk Assessment Chapter 15 – Contamination and soils EIS Volume 5a 5 – Environmental Site Assessment (Phase 2) Chapter 16 – Hydrology, groundwater and water quality Chapter 17 – Local air quality Chapter 18 – Regional air quality EIS Volume 5b Chapter 19 – Greenhouse gas assessment 5 – Environmental Site Assessment (Phase 2) Chapter 20 – Aboriginal heritage Appendices C to F Chapter 21 – European heritage Chapter 22 – Visual and urban design EIS Volume 6 Chapter 23 – Property and infrastructure 6 – Surface Water Assessment Chapter 24 – Social and economic impacts VOLUME 1b 7 – Local Air Quality Impact Assessment Chapter 25 – Human health risks and impacts 8 – Regional Air Quality Impact Assessment Chapter 26 – Waste and resource management 9 – Greenhouse Gas Assessment Chapter 27 – Cumulative impacts Chapter 28 – Environmental management framework Chapter 29 – Environmental risk analysis EIS Volume 7 Chapter 30 – Project justification and conclusions 10 – Aboriginal Heritage Impact Assessment Chapter 31 – References EIS Volume 8 Appendix A – EIS Project team 11 – European Heritage Impact Assessment Appendix B – EIS guidelines and requirements 12 – Visual Impact Assessment Appendix C – Compliance with the Georges River REP principles Appendix D – Consultation information, materials and outcomes Appendix E – MCA criteria relating to Project objectives EIS Volume 9 Appendix F – Layouts of shortlisted Project alternatives 13 – Light Spill Impact Assessment Appendix G – Peer review endorsement letters 14 – Social Impact Assessment Appendix H – Provisional EMPs 15 – Human Health Risk Assessment VOLUME 2 Appendix I – Environmental record of Proponent 16 – Health Impact Assessment Appendix J – Compliance with Schedule 1, Part 1 and 2 of the (NSW) Environmental Planning and Assessment Regulation 2000 Appendix K – Tenure history of the Project site Contents VOLUME 1A – MAIN VOLUME Declaration Glossary and abbreviations Executive summary Chapter 1 Introduction Chapter 2 Site context and environmental values Chapter 3 Strategic context and need for the Project Chapter 4 Planning and statutory requirements Chapter 5 Stakeholder and community consultation Chapter 6 Project development and alternatives Chapter 7 Project built form and operations Chapter 8 Project development phasing and construction Chapter 9 Project sustainability Chapter 10 Impact assessment approach Chapter 11 Traffic, transport and access Chapter 12 Noise and vibration Chapter 13 Biodiversity Chapter 14 Hazards and risks Chapter 15 Contamination and soils VOLUME 1B – MAIN VOLUME Chapter 16 Hydrology, groundwater and water quality Chapter 17 Local air quality Chapter 18 Regional air quality Chapter 19 Greenhouse gas assessment Chapter 20 Aboriginal heritage Chapter 21 European heritage Chapter 22 Visual and urban design Chapter 23 Property and infrastructure Chapter 24 Social and economic impacts Chapter 25 Human health risks and impacts Chapter 26 Waste and resource management Parsons Brinckerhoff i Chapter 27 Cumulative impacts Chapter 28 Environmental management framework Chapter 29 Environmental risk analysis Chapter 30 Project justification and conclusions Chapter 31 References VOLUME 2 – APPENDICES Appendix A EIS Project team Appendix B EIS guidelines and requirements Appendix C Compliance with the Georges River Regional Environment Plan (REP) principles Appendix D Consultation information, materials and outcomes Appendix E MCA criteria relating to Project objectives Appendix F Layouts of shortlisted Project alternatives Appendix G Peer review endorsements Appendix H Provisional EMPs Appendix I Environmental record of Proponent Appendix J Compliance with Schedule 1, Part 1 and 2 of the Environmental Planning and Assessment Regulation 2000 (NSW) Appendix K Tenure history of the Project site VOLUME 3 Technical Paper 1 Traffic and Transport Impact Assessment Technical Paper 2 Noise and Vibration Impact Assessment VOLUME 4 Technical Paper 3 Ecological Impact Assessment (with associated Biodiversity Offset Strategy) Technical Paper 4 Preliminary Risk Assessment VOLUME 5A Technical Paper 5 Environment Site Assessment (Phase 2) Parsons Brinckerhoff ii VOLUME 5B Technical Paper 5 Environment Site Assessment (Phase 2) – Appendices C-F VOLUME 6 Technical Paper 6 Surface Water Assessment Technical Paper 7 Local Air Quality Impact Assessment Technical Paper 8 Regional Air Quality Impact Assessment Technical Paper 9 Greenhouse Gas Assessment VOLUME 7 Technical Paper 10 Aboriginal Heritage Impact Assessment VOLUME 8 Technical Paper 11 European Heritage Impact Assessment Technical Paper 12 Visual Impact Assessment VOLUME 9 Technical Paper 13 Light Spill Impact Assessment Technical Paper 14 Social Impact Assessment Technical Paper 15 Human Health Risk Assessment Technical Paper 16 Health Impact Assessment Parsons Brinckerhoff iii Moorebank Intermodal Company Moorebank Intermodal Terminal Surface water assessment 25 June 2014 Moorebank Intermodal Company Moorebank Intermodal Terminal - Surface water assessment Contents Page number Abbreviations iii 1. Introduction 5 1.1 The Moorebank Intermodal Terminal Project 5 1.2 Rail access options and layouts 6 1.3 The project site 6 1.4 Project delivery 8 1.5 Planning and assessment process 10 1.6 Report outline 10 1.7 Assessment criteria 11 1.8 Assessment methodology 13 2. Existing environment 15 2.1 Regional surface water environment 15 2.2 Local surface water environment 19 3. Impact assessment 27 3.1 Proposed project works 27 3.2 Regional flooding impacts 30 3.3 Local stormwater catchment impacts 36 3.4 Surface water quality impacts 38 4. Mitigation measures 43 4.1 Early works 43 4.2 Regional flooding mitigation measures 43 4.3 On-site stormwater management 44 5. Conclusions 49 6. References 51 Parsons Brinckerhoff | 2103829E-TPT-REP-003 RevA i Moorebank Intermodal Company Moorebank Intermodal Terminal - Surface water assessment List of tables Page number Table 1.1 Secretary for the NSW DP&E’s Environmental Assessment Requirements 11 Table 1.2 Commonwealth EIS requirements 11 Table 2.1 Project site flood risk zones 16 Table 2.2 Existing water quality data 26 Table 3.1 Northern rail access option 1% AEP flood levels and afflux results 32 Table 3.2 Central rail access option 1% AEP flood levels and afflux results 33 Table 3.3 Southern rail access 1% AEP flood levels and afflux 33 Table 3.4 1% AEP flood levels and afflux results with climate change allowance for the northern rail access option 35 Table 3.5 Northern rail connection stormwater runoff estimation 37 Table 3.6 Central rail connection option stormwater runoff estimation 37 Table 3.7 Southern rail connection stormwater runoff estimation 37 Table 3.8 MUSIC modelling of stormwater pollutants 40 Table 3.9 Northern rail connection option treatment area requirement estimation 40 Table 3.10 Central rail connection option treatment area requirement estimation 41 Table 3.11 Southern rail connection option treatment area requirement estimation 41 List of figures Page number Figure 1.1 Project site location 7 Figure 1.2 Project development phasing 9 Figure 2.1 Existing flood risk probability map 18 Figure 2.2 Existing water bodies and surface drainage 21 Figure 2.3 Existing water quality sampling sites 25 List of appendices Appendix A Design Flood Impact Assessment Appendix B Stormwater Management Plan Appendix C Figures Parsons Brinckerhoff | 2103829E-TPT-REP-003 RevA ii Moorebank Intermodal Company Moorebank Intermodal Terminal - Surface water assessment Abbreviations AEP Annual Exceedance Probability ARI ARI – Average Recurrence Interval CERAT Coastal Eutrophication Risk Assessment Tool DA Development Assessment DGR Director General’s Requirements DNSDC Defence National Storage and Distribution Centre DoD Department of Defence EC Electrical Conductivity EIS Environmental Impact Statement ESA Environmental Site Assessment EV Environmental values GRCCC Georges River Combined Council Committee Ha Hectares LCC Liverpool City Council OEH NSW Office of Environment and Heritage OSD On-Site Detention m AHD Metres Australian Height Datum MIMT Moorebank Intermodal Terminal MIC Moorebank Intermodal Company NOW New South Wales Office of Water RCP Reinforced concrete pipe SEWPaC Sustainability, Environment, Water, Population and Communities SSD State significant development SSFL Southern Sydney Freight Line TN Total nitrogen WQOs Water Quality Objectives Parsons Brinckerhoff | 2103829E-TPT-REP-003 RevA iii Moorebank Intermodal Company Moorebank Intermodal Terminal - Surface water
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