SC3395-SWMP Rev A

SC3395-Lot 4 Hofmann Drive, Noosaville                                                                  10




3.3.3   Effectiveness in Pollution Reduction
The water quality development model was set up with the incorporation of the above devices to reduce
pollutant export to WQO levels. Table 3.4 indicates the predicted pollutant mean values of stormwater
discharged from Lot 1 as calculated by MUSIC:


                                  Pollutant             Percentage Load Reduction

                       Total Suspended Solids (TSS)                 85.1%

                           Total Phosphorus (TP)                    61.6%

                             Total Nitrogen (TN)                    53.6%

                          Gross Pollutants (>5mm)                   98.0%

                                  Table 3.4 - Flow Based Pollutant Load Reduction



The MUSIC modelling results shown above indicate that the treatment train will adequately treat TSS, TP
and TN generated by stormwater runoff in accordance with the targets required under the water quality
objectives stated previously.