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MCU10/2083 Development Application part 2 - Attachment 7 - Stormwater Management Plan
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5.6 MUSICCATCHMENTPARAMETERS
Stormwater quality modelling has been undertaken for the proposed development using MUSIC 4.0 software
program. MUSIC is widely accepted as the industry standard for WSUD modelling and is an excellent tool for
comparing treatment train effectiveness. Input parameters for source nodes and treatment devices have been
obtained from BCC’s MUSIC modelling guidelines as well asthe MUSIC Modelling guidelines for SEQ Version 1.
ThemodellayoutisprovidedinFigure2.Detailsoneachcatchment(SourceNode)aredetailedinTable13.
Table13MUSICCatchmentParameters
Percentage
Catchment Area(ha) MUSICSourceNode
Impervious
Roof 0.184 100 Roof
Carpark1 0.089 100 Road
Carpark2 0.076 100 Road
5.7 MUSICSOURCENODEPARAMETERS
The MUSIC source node parameters were taken from the BCC Guidelines for Pollutant Export Modelling in
Brisbane–Version7.
Table14MUSICBaseandStormFlowConcentrationParameters
TotalSuspended TotalPhosphorus TotalNitrogen
Solids(Log10mg/L) (Log10mg/L) (Log10mg/L)
LandUse Parameter
Base Storm Base Storm Base Storm
Flow Flow Flow Flow Flow Flow
Urban Mean 1.00 2.18 0.97 0.47 0.20 0.26
Residential StdDeviation 0.34 0.39 0.31 0.31 0.20 0.23
Table15MUSICRunoffGenerationParameters
Parameter UrbanResidential
FieldCapacity(mm) 200
InfiltrationCapacityCoefficienta 211
InfiltrationCapacityCoefficientb 5.0
RainfallThreshold(mm) 1
SoilCapacity(mm) 500
InitialStorage(%) 10
DailyRechargeRate(%) 28
DailyBaseflowRate(%) 27
SITEBASEDSTORMWATERMANAGEMENTPLAN–RevisionD 37GibsonRoad,Noosaville Page 12
[OCR of page images]
5.6 MUSIC CATCHMENT PARAMETERS
JFOP
AU
URBANCONSULTANTS
Stormwater quality modelling has been undertaken for the proposed development using MUSIC 4.0 software
program. MUSIC is widely accepted as the industry standard for WSUD modelling and is an excellent tool for
comparing treatment train effectiveness. Input parameters for source nodes and treatment devices have been
obtained from BCC’s MUSIC modelling guidelines as well as the MUSIC Modelling guidelines for SEQ Version 1.
The model layout is provided in Figure 2. Details on each catchment (Source Node) are detailed in Table 13.
Table 13 - MUSIC Catchment Parameters
Catchment Area (ha) Percentage MUSIC Source Node
Impervious
Roof 0.184 100 Roof
Carpark 1 0.089 100 Road
Carpark 2 0.076 100 Road
5.7 MUSIC SOURCE NODE PARAMETERS
The MUSIC source node parameters were taken from the BCC Guidelines for Pollutant Export Modelling in
Brisbane — Version 7.
Table 14 - MUSIC Base and Storm Flow Concentration Parameters
Total Suspended Total Phosphorus Total Nitrogen
Solids (Logio mg/L) (Logio mg/L) (Logio mg/L)
Land Use Parameter
Base Storm Base Storm Base Storm
Flow Flow Flow Flow Flow Flow
Urban Mean 1.00 2.18 -0.97 -0.47 0.20 0.26
Residential | Std Deviation 0.34 0.39 0.31 0.31 0.20 0.23
Table 15 - MUSIC Runoff Generation Parameters
Parameter Urban Residential
Field Capacity (mm) 200
Infiltration Capacity Coefficient a 211
Infiltration Capacity Coefficient b 5.0
Rainfall Threshold (mm) 1
Soil Capacity (mm) 500
Initial Storage (%) 10
Daily Recharge Rate (%) 28
Daily Baseflow Rate (%) 27
SITE BASED STORMWATER MANAGEMENT PLAN ~ Revision D 37 Gibson Road, Noosaville 12
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