Judgment - Stockwell v Noosa Council - PEC Appeal 1998 of 2024 - 26.06.25 · MCU22/0094

Parameter                                                                                                         Value
Rainfall Threshold (mm)                                                                                               1
Soil Storage Capacity (mm)                                                                                           18
Initial Storage (% of capacity)                                                                                      10
Field Capacity (mm)                                                                                                  80
Infiltration Capacity Co-efficient a                                                                                243
Infiltration Capacity Co-efficient b                                                                                0.6
Initial Depth (mm)                                                                                                   50
Daily Recharge Rate (%)                                                                                               0
Daily Base Flow Rate (%)                                                                                             31
Deep Seepage (%)                                                                                                      0
                                    Table 1 – MUSIC Rainfall Runoff Parameters (Commercial)

6.4.3.4 Pollutant Export Parameters

Specific Pollutant Export Parameters must be applied to each node type as cited in the Water By Design
MUSIC Modelling Guidelines. The values shown in Table 2 are for split catchment commercial areas.
Runoff pollutant concentrations are generated stochastically from the defined mean and standard
deviation.
Land Use – Commercial                         Log10 TSS (mg/L)                        Log10 TSS (mg/L)                        Log10 TSS (mg/L)
                                          Base Flow         Storm Flow           Base Flow          Storm Flow            Base Flow         Storm Flow
                     Mean                       0                 1.30                  0                -0.89                  0                0.37
Roof
                     Std. Dev.                  0                 0.38                  0                 0.34                  0                0.34
                     Mean                     0.78                2.43                -0.6               -0.30                0.32               0.37
Roads
                     Std. Dev.                0.39                0.38                 0.5                0.34               0.30                0.34
Ground               Mean                     0.78                2.16                -0.6               -0.39                0.32               0.37
Level/Open           Std. Dev.                0.39                0.38                 0.5                0.34               0.30                0.34
Space
                                       Table 2 – Pollutant Export Parameters (Commercial)




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Inspired engineering

10 April 2025
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