TABLE OF CONTENTS

• Introduction 1
• Study Area and Watercourse Crossings Locations 2
• Purpose of Report 2 2.0
• Collection of Background Information 3
• Field Investigations (2010) 5
• Results of Field Investigations 6
• Broadway Drain 6 Healy Drain 7
• Aquatic Effects Assessment 9
• Proposed Works and Potential Impacts 9
• Project-Specific Impacts 11
• Mitigation Measures 11
• Changes or alterations to water quality and quantity 12
• Alterations to baseflow 12
• Loss of fish habitat 13
• Erosion and Sediment Control 13
• Fish Protection 13
• Channel Realignment 14
• Construction Access, Site Controls and Operational Constraints 15
• Enhancement Measures Following Construction 16
• Site Inspection and Monitoring 16
• Residual Effects 17
• 5.0 Categorization of Project Risk and HADD Determination 21
• 6.0 Potential Enhancement and Compensation Opportunities 24
• 7.0 Monitoring and Commitments for the Undertaking 26
• 8.0 Summary 27
• 9.0 References 28

LIST OF FIGURES & TABLES

• Figure 1. Plaza B1 Location (Based on Draft Conceptual Design, April 2010) 2
• Figure 2. Summary of Fish Habitat Identified by LGL 5
• Figure 3. Risk Assessment Matrix 24
• Figure 4. Proposed Enhancement measure to Broadway Drain 26
• Table 1. Summary 2006 Sampling Locations on Broadway and Healy Drains 4
• Table 2. Summary of Existing Fish and Fish Habitat Conditions 8
• Table 3. Aquatic Effects Assessment Summary 17
• Table 4. Risk Assessment (Scale of Negative Effect and Sensitivity of Fish and Fish Habitat) 22

LIST OF APPENDICES

• APPENDIX A. Photographic Records
• APPENDIX B. Field Collection Records

• APPENDIX A. Photographic Records
• APPENDIX B. Field Collection Records