Attachment G - Stormwater Quality Management plan

                                                                                                        Callaghan & Toth

CONTENTS

1.0      SUMMARY ............................................................................................................ 5
2.0      INTRODUCTION ................................................................................................... 5
3.0      DESCRIPTION ...................................................................................................... 7
   3.1      Contaminated Land: ........................................................................................... 7
   3.1      Proposed Works................................................................................................. 7
4.0      WATER QUALITY MANAGEMENT PLAN .......................................................... 10
   4.1      Proposed On-Site Stormwater Treatment Process .......................................... 10
   4.2      MUSIC Model ................................................................................................... 10
      4.2.1      Source Nodes ............................................................................................ 10
      4.2.2      Treatment Nodes ....................................................................................... 11
      4.2.3      Rainfall Data .............................................................................................. 12
   4.3      External Catchment Management .................................................................... 14
   4.4      MUSIC Modelling Results ................................................................................ 15
      4.4.1      Water Quality Objectives ........................................................................... 15
      4.4.2      Assessment of Results .............................................................................. 15
5.0      FLOODING ASSESSMENT SUMMARY ............................................................. 16
   5.1      Existing Conditions........................................................................................... 16
   5.2      Proposed Drainage System ............................................................................. 16
6.0      CONCLUSIONS & RECOMMENDATIONS......................................................... 17
APPENDIX A              - MUSIC Results ................................................................................ A
APPENDIX B              - Borehole Location Plan .................................................................... B
APPENDIX C              - Standard Drawings .......................................................................... C




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2001 Hinterland Playground SWMP                                                                     February 2020