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MCU14/0056 Response to SARA - Consulting Report
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Engineering Report & Stormwater Management Plan
Date: 27/01/2015 Document No.: 14012-ENG-04.Docx
By: AvT Revision No.: F
Music Model Parameters
The split catchment parameters used as the MUSIC Pollutant Export Parameters are shown
below in Table 5.3, and where derived from Table 3.8 of the MUSIC Modelling Guidelines
prepared by Water by Design (2010).
FLOW SURFACE
TSS log10 VALUES TSS log10 VALUES TSS log10 VALUES
TYPE TYPE
Commercial Mean Std. Dev. Mean Std. Dev. Mean Std. Dev.
Roof N/A N/A N/A N/A N/A N/A
Baseflow
Road 0.78 0.39 -0.60 0.50 0.32 0.3
Parameters
Ground 0.78 0.39 -0.60 0.50 0.32 0.3
Roof 1.30 0.38 -0.89 0.34 0.37 0.34
Stormflow
Road 2.43 0.38 -0.30 0.34 0.37 0.34
Parameters
Ground 2.16 0.38 -0.39 0.34 0.37 0.34
Table 5.3: Source Node MUSIC Pollutant Export Parameters
The parameters used as the MUSIC Rainfall-Runoff Parameters are shown below in Table 5.4, and
where derived from Table 3.7 of the MUSIC Modelling Guidelines prepared by Water by Design
(2010).
PARAMETER COMMERCIAL
Rainfall Threshold (mm) 1
Soil Storage Capacity (mm) 18
Initial Storage (% Capacity) 10
Field Capacity (mm) 80
Infiltration Capacity Coefficient - a 243
Infiltration Capacity Exponent – b 0.6
Initial Depth (mm) 50
Daily Recharge Rate (%) 0
Daily Baseflow Rate (%) 31
Daily Deep Seepage Rate (%) 0
Table 5.4: MUSIC Rainfall-Runoff Parameters
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