Stormwater Management Plan MCU17/0014

BORNHORST + WARD | DOONELLA STREET UNITS


         5.2.2      Source Nodes

                    The second step taken in creating the MUSIC models was to define ‘Source Nodes’ or Sub-Catchments.
                    The MUSIC model consisted of 5 source node types based on the proposed development layout and usage.
                    These nodes can be seen in figure 3: Proposed Treatment Train. Source node input parameters for each node
                    type were adopted in accordance with the MUSIC Modelled Guidelines.

         5.3        TREATMENT METHODOLOGY

         5.3.1      Treatment Nodes

                    The MUSIC model consisted of two treatment nodes as detailed in Table 5 and depicted in Figure 2. Treatment
                    node input parameters were based on the MUSIC Modelling Guidelines and sourced from the product supplier.

                                                    Table 3: Selected Stormwater Quality Treatment Devices
                        Treatment Device                Discussion
                       Gross Pollutant Trap            A gross pollutant trap is a treatment device designed to capture
                          EnvrioPod 200                coarse sediment, trash and vegetation matter in stormwater runoff. It
                         Stormwater360                 is proposed to place an EnviroPod 200 at the start of the treatment
                         (or equivalent)               train; ensuring ground runoff is filtered for gross pollutants before
                                                       entering the detention tank and reaching the filter cartridges.

                       Tertiary Treatment               A Stormwater360 proprietary device containing Cartridge filtration
                              Device                    designed to remove nutrients and sediments from stormwater
                      6901 PSorb Cartidges              runoff. It is proposed that 6x690mm PSorb Detention StormFilter
                        Stormwater360                   cartridges are placed within the stormwater detention tank.
                         (or equivalent)

                    Refer to the Stormwater360 Plans and technical information attached in Appendix D for further details.

         5.3.2      Proposed Treatment Train

                    A ‘Treatment Train’ was developed to target each of the pollutants of concern to be incorporated into the
                    development site layout. This treatment train is illustrated in Figure 3: Proposed Treatment Train.




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