Sealed Judgement

Figure 4-3 Post-development MUSICX Model Setup


4.4          Treatment Effectiveness
Table 4-5 lists the results obtained from MUSICX modelling for the pre-development and post-
development scenarios.

Table 4-5   MUSICX Modelling Results

                                                     Post Development
                                      Pre-
 Land Use                                                      Residual              Notes
                                  Development    Sources
                                                                 Load
                                       Without Exfiltration
 Total Suspended Solids (kg/yr)      178.2         344.4         67.1          80.5% reduction
 Total Phosphorus (kg/yr)             0.2            0.8          0.2          77.3% reduction
 Total Nitrogen (kg/yr)               1.9            6.4          2.6          58.6% reduction
 Gross Pollutants (kg/yr)             2.7           59.1          0.0          100.0% reduction
                                         With Exfiltration
 Total Suspended Solids (kg/yr)      178.2         344.4         62.6         < pre-development
 Total Phosphorus (kg/yr)             0.2            0.8          0.1         < pre-development
 Total Nitrogen (kg/yr)               1.9            6.4          1.7         < pre-development
 Gross Pollutants (kg/yr)             2.7           59.1          0.0         < pre-development




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