20220206 48 Elm St SWMP

Contents
Introduction..........................................................................................................................................4
Site Details ...........................................................................................................................................5
          2.1. Existing Site Description & Drainage .................................................................................................. 5
          2.2. Existing Drainage Patterns .................................................................................................................. 5
          2.3. Proposed Development Drainage Pattern ......................................................................................... 6
          2.4. Flood Considerations ........................................................................................................................... 6

Stormwater Quantity ............................................................................................................................7
          3.1. Pre-Post Comparison .......................................................................................................................... 7
          3.2. Existing Drainage Network .................................................................................................................. 9

Stormwater Quality ........................................................................................................................... 14
          4.1. Construction Phase ........................................................................................................................... 14
          4.2. Operational Phase ............................................................................................................................ 15

Conclusion ........................................................................................................................................ 16




Appendices
Appendix A
          Proposed Development Plans

Appendix B
          DRAINS Modelling Results




Project number 20220206
File 20220206 48 Elm St SWMP, 2023-02-03 Revision 1
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