Att 4 - SWMP · MCU21/0117

                                               Figure 4.6 – Bioretention Node details

            Table 4.2 – Bioretention Area Plantings below based on the Brisbane City Council Water
            Sensitive Urban Design Engineering Guidelines presents a sample of suitable plants that
            shall be used to provide effective removal of nutrients in the areas.

                                              Table 4.2 – Bioretention Area Plantings

                                                                                                                           Planting
                                                                                                                           Density
             Scientific Name                                   Common Name                      Form         Height (mm)   (Qty/m²)
             Myoporum parvifolium                              Creeping Boobialla               Prostrate           150    4-6
             Cymbopogon refractus                              Barbed Wire Grass                Tufted              300    8-10
             Cyperus polystachyos                              Bunchy Sedge                     Tufted              600    6-8
             Dianella brevipendunculata                        Flax Lily                        Tufted              500    4-6
             Dianella caerulea cv ‘Breeze’                     Blue Flax-lily                   Tufted              600    4-6
             Dianella caerulea cv ‘Little Jess’                Blue Flax-lily                   Tufted              400    4-6
             Dianella longifolia var. longifolia               Pale Flax-lily                   Tufted              550    6-8
             Dichelachne crinita                               Long Haired Plume Grass          Tufted              200    6-8
             Erograstis elongata cv ‘Elvera’                   Elvera                           Tufted              300    6-8
             Imperata cylindrica                               Blady Grass                      Tufted              500    4-6
             Lepidosperma laterale                             Variable Sword Sedge             Tufted              750    8-10
             Lomandra confertifolia                            Matting Lomandra                 Tufted              300    4-6
             Lomandra confertifolia subs pallida               Mat Rush                         Tufted              400    4-6
             Lomandra longifolia                               Matt Rush                        Tufted             1000    4-6
             Lomandra longifolia cv 'Tanika'                   Tanika                           Tufted              500    4-6
             Poa labillardiere cv ‘Eskdale’                    Eskdale                          Tufted              450    6-8
             Themeda australis                                 Kangaroo Grass                   Tufted              400    6-8
             Themeda australis cv ‘Mingo                       Mingo                            Tufted              200    8-10



                        4.2.1.2.        MUSIC modelling results

            The proposed treatment train is able to achieve the required water quality improvements
            as shown below in Table 4.3 - MUSIC Modelling results.

                                                Table 4.3 - MUSIC Modelling results

                                                      Sources              Residual           Percentage        Percentage
                                                                           Load               Target            Reduction

             Total Suspended Solids (kg/yr)              454.08                 88.35                 80             80.54

             Total Phosphorus (kg/yr)                     0.938                 0.312                 60             66.75

             Total Nitrogen (kg/yr)                       5.661                 3.06                  45             45.95

             Gross Pollutants (kg/yr)                    50.581                 4.902                 90             90.31




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