RFI - Attachment 3 - Stormwater Management Plan

Contents
Introduction..........................................................................................................................................4
Site Details ...........................................................................................................................................5
          2.1. Existing Site Description ...................................................................................................................... 5
          2.2. Existing Drainage Patterns .................................................................................................................. 6
          2.3. Proposed Development Drainage Patterns........................................................................................ 9

Flood Considerations ........................................................................................................................ 11
          3.1. Flood modelling parameters ............................................................................................................. 12
          3.2. Flood modelling results ..................................................................................................................... 14

Stormwater Quality Management ...................................................................................................... 17
          4.1. Operational Stormwater Management ............................................................................................. 17
          4.2. Construction Stormwater Management ........................................................................................... 24

Stormwater Quantity Management .................................................................................................... 27
          5.1. Site Discharge Impacts ..................................................................................................................... 27

Conclusion ........................................................................................................................................ 29




Appendices
Appendix A
          Proposed Concept Plans

Appendix B
          DRAINS Modelling Results

Appendix C
          TUFLOW Modelling Flood Maps

Appendix D
          Ecosol Litter Basket Technical Specification

Appendix E
          Bioretention Garden Maintenance Checklist




Project number 21020
File RECOR Concept Stormwater Management Report - 21020.docx, Revision 0                2022-09-05
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