Attachment 6 - Stormwater Management Plan and Engineering Response. · MCU23/0078

LIST OF FIGURES
Figure 1: Site Locality Plan ................................................................................................................................................................................................................... 2
Figure 2: Noosa Shire Council Interactive Flood Map ............................................................................................................................................................. 4
Figure 3: Proposed Treatment Train (Entire Development) ................................................................................................................................................ 19


LIST OF TABLES
Table 1: IFD Parameters ........................................................................................................................................................................................................................ 6
Table 2: XP Storm Existing Catchment Model Parameters .................................................................................................................................................... 6
Table 3: Existing Scenario Critical Peak Flow Runoff (m3/s)................................................................................................................................................... 7
Table 4: XP Storm Developed Catchment Model Parameters .............................................................................................................................................. 7
Table 5: Developed Scenario Critical Peak Flow Runoff (m3/s) ............................................................................................................................................ 8
Table 6: XP Storm Existing Model Parameters ............................................................................................................................................................................ 8
Table 7: XP Storm Existing Peak Flow Results – Lot 3 (m3/sec) ............................................................................................................................................ 9
Table 8: XP Storm Existing Peak Flow Results – Lot 7 (North) (m3/sec) ........................................................................................................................... 9
Table 9: XP Storm Existing Peak Flow Results – Lot 7 (South) (m3/sec) ........................................................................................................................... 9
Table 10: Comparison of Rational Method & XP Storm Existing Peak Flows – Lot 3 (m3/sec)........................................................................... 10
Table 11: XP Storm Developed Model Parameters – Lot 3 ................................................................................................................................................. 10
Table 12: XP Storm Developed Model Parameters – Lot 7 (North) ................................................................................................................................ 10
Table 13: XP Storm Developed Model Parameters – Lot 7 (South) ................................................................................................................................ 11
Table 14: XP Storm Developed Unmitigated Peak Flow Results – Lot 3 (m3/sec)..................................................................................................... 11
Table 15: XP Storm Developed Unmitigated Peak Flow Results – Lot 7 (North) (m3/sec).................................................................................... 11
Table 16: XP Storm Developed Unmitigated Peak Flow Results – Lot 7 (South) (m3/sec).................................................................................... 12
Table 17: XP Storm Developed Model Hydraulic Routing .................................................................................................................................................. 12
Table 18: XP Storm Developed Mitigated Peak Flow Results – Lot 3 (m3/sec).......................................................................................................... 13
Table 19: XP Storm Developed Mitigated Peak Flow Results – Lot 7 (North) (m3/sec) ......................................................................................... 14
Table 20: XP Storm Developed Mitigated Peak Flow Results – Lot 7 (North) (m3/sec) ......................................................................................... 14
Table 21: XP Storm Existing and Developed Mitigated Peak Discharge Comparison – Lot 3 (m3/sec) .......................................................... 15
Table 22: XP Storm Existing and Developed Mitigated Peak Discharge Comparison – Lot 7 (North) (m3/sec) .......................................... 15
Table 23: XP Storm Existing and Developed Mitigated Peak Discharge Comparison – Lot 7 (South) (m3/sec) .......................................... 15
Table 24: Noosa Shire Council Water Quality Objectives .................................................................................................................................................... 16
Table 25: Source Node Information – Lot 3 Catchment ...................................................................................................................................................... 17
Table 26: Source Node Information – Lot 7 Northern Catchment .................................................................................................................................. 17
Table 27: Source Node Information – Lot 7 Southern Catchment .................................................................................................................................. 17
Table 28: Selected Stormwater Quality Treatment Devices................................................................................................................................................ 18
Table 29: Pollutant Removal Rates Discharge (Entire Development) ............................................................................................................................. 19


APPENDICES
Appendix A                                        DEVELOPMENT DRAWINGS
Appendix B                                        ENGINEERING DRAWINGS
Appendix C                                        EXISTING STORMWATER AND CONTOUR INFORMATION
Appendix D                                        RATIONAL METHOD CALCULATIONS
Appendix E                                        XP STORM FLOOD ASSESSMENT OUTPUTS
Appendix F                                        XP STORM 1D DETENTION SIZING OUTPUTS
Appendix G                                        MUSIC DATA
Appendix H                                        COUNCIL CODES




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