H - Revised Integrated Water Management Plan by Cardno (inc MUSIC file) (13.09.19)

                                                                                                            Integrated Water Management Plan
                                                                                                    Noosa Marketplace : 2-20 HOFMANN DRIVE




Tables
                  RAFTS Catchments ............................................................................................................... 11
Table 4-2         Initial and Continuing Losses for RAFTS Modelling .............................................................. 11
                  Rational Method Verification .................................................................................................. 12
                  1% AEP Peak Flows (m 3/s).................................................................................................... 12
                  Local Catchment Parameters ................................................................................................ 13
Table 5-2         Proposed Stormwater Detention Tank Parameters ............................................................... 14
Table 5-3         Peak XP-RAFTS Discharge ................................................................................................... 15
Table 5-4         Tank Storage Volume ............................................................................................................ 15
Table 6-1         Rainwater Tanks MUSIC Details ........................................................................................... 18
                  Rainfall Runoff Parameters for Commercial Source Nodes .................................................. 18
                  Pollutant Export Parameters for Commercial Source Nodes ................................................ 18
                  Catchment Areas and Proposed Stormwater Treatment ....................................................... 20
Table 6-5         Bio-Basin 1 Details ................................................................................................................. 20
Table 6-6         Pollutant Capture Rates ......................................................................................................... 20
                  MUSIC Model Results ............................................................................................................ 22
                  Mannings ‘n’ Values ............................................................................................................... 23
Table 7-2         Existing Flood Level (mAHD) ................................................................................................. 26
Table 7-3         Developed Flood Level (mAHD) ............................................................................................ 28
Table 7-4         Flooding Impacts (m) ............................................................................................................. 33

Figures
Figure 1-1        Subject Site                                                                                                                          3
Figure 3-1        Modelled Existing Site Drainage                                                                                                       9
Figure 4-1        RAFTS Catchments                                                                                                                    10
Figure 6-2        MUSIC Model Layout                                                                                                                  19
Figure 6-3        MUSIC Model Catchments                                                                                                              21
Figure 7-1        Locations of Interest                                                                                                               24
Figure 7-2        Existing Ponding                                                                                                                    25
Figure 7-3        Drainage Upgrades                                                                                                                   27
Figure 7-4        Overland flowpath (approximate location)                                                                                            28
Figure 7-5        P4 Water Surface Profile                                                                                                            29
Figure 7-6        Flow Capture Line L16                                                                                                               30
Figure 7-7        Culvert C1 & C26                                                                                                                    31
Figure 7-8        P10 Water Surface Profile                                                                                                           32
Figure 7-9        P10 Profile Location                                                                                                                32
Figure 7-10       Point 5 Water Surface Elevation                                                                                                     34
Figure 7-11       ZAEM1 Flood Hazard Curves                                                                                                           34
Figure 7-12       Developed Hazard Class - PMF                                                                                                        35


V190428 | 10 September 2019 | Commercial in Confidence                                                                                                  2