MUSIC Modelling Guidelines

MUSIC Modelling Guidelines
MUSIC Modelling Guidelines
Version 1.0 – 2010
Water by Design is a program of the South East Queensland Healthy Waterways Partnership
© South East Queensland Healthy Waterways Partnership 2010
This work may be reproduced in whole or part for study or training purposes subject to inclusion of an
acknowledgment of the source and no commercial usage or sale. Reproduction for the purposes other
than those named above requires the permission of the South East Queensland Healthy Waterways
Partnership office. Requests and enquires concerning reproduction rights should be forwarded to
[email protected]
ISBN 978-0-9806278-4-8
Version 1.0, 2010
This publication should be cited as: Water by Design (2010). MUSIC Modelling Guidelines. SEQ Healthy
Waterways Partnership. Brisbane, Queensland. ISBN 978-0-9806278-4-8
Disclaimer
The material contained in this publication is produced for general information only. It is not intended as
professional advice on specific applications. It is the responsibility of the user to determine the
suitability and appropriateness of the material contained in this publication to specific applications.
No person should act or fail to act on the basis of any material contained in this publication without
first obtaining specific independent professional advice. Healthy Waterways Limited and the
participants of the Healthy Waterways Network expressly disclaim any and all liability to any person in
respect of anything done by any such person in reliance, whether in whole or in part, on this publication.
The information contained in this publication does not necessarily represent the views of Healthy
Waterways Limited or the participants of the Healthy Waterways Network.
Acknowledgements
The MUSIC Modelling Guidelines were developed by the Water by Design program of the South East
Queensland Healthy Waterways Partnership (SEQHWP), with financial assistance from the State of
Queensland acting through the Department of Environment and Resource Management.
Project Manager: Paul Dubowski (Water by Design program, SEQHWP)
Authoring Team: Tony Weber (WBM BMT), Shaun Leinster (DesignFlow), Eleanor McKeough
(DesignFlow), Paul Dubowski and Alan Hoban (Water by Design program, SEQHWP)
Reviewer: Alan Hoban (Water by Design program, SEQHWP)
Editor: Justine Gannon (Proof etc.)
The eWater CRC and eWater Innovation provided access to MUSIC Version 4 prior to public release to
support the publication of this guideline.
Water by Design welcomes feedback on this publication which can be directed to
[email protected]
Water by Design
Water by Design was established in 2005 and is a program of the South East Queensland Healthy
Waterways Partnership. Water by Design builds the capacity of the water and urban development
sectors to help successfully implement sustainable urban water management. Sustainable
management of the urban water cycle supports sustainable development, including protection of the
natural water cycle.
South East Queensland Healthy Waterways Partnership
The South East Queensland Healthy Waterways Partnership is a collaboration between government,
industry, researchers and the community. The Partnership was created in 2001. The partners work
together to improve catchment management and waterway health in Moreton Bay and the rivers of
South East Queensland between Noosa and the Queensland–New South Wales border. The Partnership
also manages the Ecosystem Health Monitoring Program (EHMP), which produces an annual report
card on the health of the region’s waterways, estuaries and bays.
Further information on the SEQ Healthy Waterways Partnership and the Water by Design Program,
is available from www.healthywaterways.org and www.waterbydesign.com.au
This document is available for download from www.waterbydesign.com.au
MUSIC Modelling Guidelines Version 1.0 – 2010.
ii
Water by Design Tools and Resources
Stormwater Harvesting Guidelines
Business Case
Concept Design Guidelines
MUSIC Modelling Guidelines
Technical Design Guidelines
Deemed to Comply Solutions–Stormwater Quality
Standard Drawings
Construction and Establishment Guidelines
Available
Asset management resources
In Press
The above diagram demonstrates the context in which the MUSIC Modelling Guidelines relate to other
resources which assist in the planning, design and implementation of water sensitive urban design.
MUSIC Modelling Guidelines Version 1.0 – 2010.
iii
CONTENTS
1
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
2
Stormwater objectives addressed by this guideline. . . . . . . . . . 2
3
Catchment model set-up. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
3.1
Meteorological data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
3.2
Modelling period and time-step. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3.3
Catchment properties. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
3.3.1
3.3.2 Defining land uses and surface types. . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
3.3.3 Fraction impervious . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
3.3.4 Rainfall runoff parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
3.3.5 Pollutant export parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
3.3.6 Calibration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
4
Stormwater treatment nodes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
4.1
Notes for all nodes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
4.2
Rainwater tanks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
4.2.1
4.2.2 Residential tank demands. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
4.2.3 Commercial and industrial demands . . . . . . . . . . . . . . . . . . . . . . . . . . 26
4.2.4 Rainwater tanks volume . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
4.2.5 Lumped versus individual tanks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
4.2.6 First-flush diverters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
4.3
Wetlands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
4.3.1
4.3.2 Storage properties for macrophyte zone . . . . . . . . . . . . . . . . . . . . . 29
4.3.3 Outlet properties . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
4.3.4 Reuse. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
4.3.5 Hydrologic routing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Defining the catchment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Queensland Development Code (Roof area and tank size) . . . . 22
Inlet properties . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
4.4 Swales. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
4.5
Bioretention systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
4.5.1
4.5.2 Storage properties. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
4.5.3 Filter media parameters. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
4.5.4 Lining properties . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
4.5.5 Vegetation properties. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
4.5.6 Infiltration and outlet properties. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
4.5.7 Hydrologic routing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
4.5.8 Bioretention in series. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Inlet properties . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
4.6 Bioretention swales . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
4.7
Buffers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
4.8 Gross pollutant traps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
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4.9 Sediment basins . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
4.10 Infiltration systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
4.11 Porous pavements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
4.12 Sand filters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
4.13 Media filtration systems. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
4.14 Generic nodes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
4.15 Hydrologic routing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
4.16 Stormwater harvesting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
4.17 Linking catchment nodes to treatment nodes . . . . . . . . . . . . . . . . . . . . . . . . 54
5Life cycle cost assessment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
5.1
Global costing properties . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
5.2
Individual node costing properties. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
6Results. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
6.1
Load analysis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
6.2
Pollutant concentration analysis. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
6.3
Life cycle costing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
7Lodgement, reporting and assessment. . . . . . . . . . . . . . . . . . . . . . . 60
7.1
Lodgement requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
7.2
Reporting requirements. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
7.2.1
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
7.2.2
Site and drainage characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
7.2.3
Stormwater management strategy. . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
7.2.4 MUSIC modelling Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
7.2.5
7.2.6 Life cycle costs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
7.2.7
7.3
MUSIC assessment checklist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
Performance reporting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
Auditing tools. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
8References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
APPENDIX A – Source node parameter summaries . . . . . . . . . . . . . . . . . . 65
A1
Residential urban source node Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
A2
Rural residential urban source node Summary. . . . . . . . . . . . . . . . . . . . . . . . 68
A3
Industrial urban source node Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
A4
Commercial urban source node Summary. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
A5
Forest source node Summary. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
A6
Agricultural source node Summary. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
APPENDIX B – Reporting tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
APPENDIX C – Assessment Checklists. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
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list of tables
Table 2.1
Suitability of MUSIC Version 4 to address stormwater
management objectives. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Table 3.1
Rainfall data and modelling periods for regions within
South East Queensland . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Table 3.2
Surface type and appropriate nodes . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Table 3.3 Typical surface-type splits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Table 3.4
Methods for determining the impervious fraction of
catchments. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Table 3.5
Typical impervious fraction for split catchment land use . . . . . . . 13
Table 3.6
Typical impervious fraction for lumped catchment land use . . . . 14
Table 3.7
Recommended MUSIC rainfall-runoff parameters. . . . . . . . . . . . . . 15
Table 3.8
Pollutant export parameters for split catchment land use. . . . . . 16
Table 3.9
Pollutant export parameters for lumped catchment land uses. . 17
Table 4.1
Rainwater tank modelling parameters . . . . . . . . . . . . . . . . . . . . . . . . . 22
Table 4.2
Minimum rainwater tank requirements as defined in
Queensland Development Code Mandatory. . . . . . . . . . . . . . . . . . . . 23
Table 4.3
Residential occupancy rates . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Table 4.4
Rainwater tank demands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Table 4.5
Wetland parameters input Summary. . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Table 4.6
Swale parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Table 4.7
Bioretention parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Table 4.8
Application of parameters to different bioretention
exfiltration scenarios. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Table 4.9
Summary of parameters for filter media (bioretention)
component of modelling bioretention swales . . . . . . . . . . . . . . . . . . 39
Table 4.10 Summary of swale input for modelling bioretention swale. . . . . 40
Table 4.11
Media filtration node parameters to represent porous
pavements. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Table 4.12 Media filtration node parameters to represent unvegetated
sand filters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Table 4.13 Bioretention node parameters to represent vegetated sand
filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Table A1.1 Typical breakdown of surface types and impervious
fraction for split and lumped residential urban source
nodes.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
Table A1.2 Rainfall-runoff parameters for residential urban
source nodes.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
Table A1.3 Pollutant export parameters for residential urban
source nodes.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
Table A2.1 Typical impervious fraction for lumped rural residential
urban source nodes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
Table A2.2 Rainfall-runoff parameters for lumped rural residential
urban source nodes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
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Table A2.3 Pollutant export parameters for lumped rural residential
urban source nodes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
Table A3.1 Typical breakdown of surface types and impervious
fraction for split and lumped industrial urban source nodes.. . . 69
Table A3.2 Rainfall-runoff parameters for split and lumped industrial
urban source nodes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
Table A3.3 Pollutant export parameters for industrial urban source
nodes.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
Table A4.1 Typical breakdown of surface types and impervious
fraction for split and lumped commercial urban source
nodes.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
Table A4.2 Rainfall-runoff parameters for lumped commercial
urban source nodes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
Table A4.3 Pollutant export parameters for commercial urban
source nodes.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
Table A5.1 Typical impervious fraction for lumped forest source nodes. . . . 71
Table A5.2 Rainfall-runoff parameters for lumped forest source nodes. . . . 71
Table A5.3 Pollutant export parameters for lumped forest source nodes.. . 71
Table A6.1 Typical impervious fraction for lumped agricultural
source nodes.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
Table A6.2 Rainfall-runoff parameters for lumped agricultural
source nodes.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
Table A6.3 Pollutant export parameters for lumped agricultural
source nodes.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
Table B1
Meteorological and rainfall runoff data reporting table . . . . . . . . 74
Table B2
Catchment definition reporting table . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
Table B3
Catchment split reporting table. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
Table B4
Rainfall runoff parameter reporting table. . . . . . . . . . . . . . . . . . . . . . . 75
Table B5
Pollutant export parameter reporting table. . . . . . . . . . . . . . . . . . . . 76
Table B6
Rainwater tank node reporting table. . . . . . . . . . . . . . . . . . . . . . . . . . . 76
Table B7
Wetland node reporting table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
Table B8
Swale node reporting table. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
Table B9
Bioretention node reporting table. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
Table B10 Buffer node reporting table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
Table B11
Gross pollutant trap node reporting table. . . . . . . . . . . . . . . . . . . . . . 80
Table B12
Sediment basin node reporting table. . . . . . . . . . . . . . . . . . . . . . . . . . . 80
Table B13 Infiltration node reporting table. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
Table B14 Porous pavement node reporting table. . . . . . . . . . . . . . . . . . . . . . . . . . 81
Table B15
Vegetated sand filter node reporting table . . . . . . . . . . . . . . . . . . . . 82
Table B16 Media filtration node reporting table . . . . . . . . . . . . . . . . . . . . . . . . . . 83
Table B17
Stormwater quality modelling results reporting table. . . . . . . . . 83
Table B18 Life cycle cost reporting table. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84
Table C1
General application information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86
Table C2
Climate and time step assessment checklist. . . . . . . . . . . . . . . . . . . 86
MUSIC Modelling Guidelines Version 1.0 – 2010.
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Table C3
Catchment and source node assessment checklist. . . . . . . . . . . . . 86
Table C4
Rainfall and runoff assessment checklist . . . . . . . . . . . . . . . . . . . . . . 87
Table C5
All treatment nodes assessment checklist. . . . . . . . . . . . . . . . . . . . . 87
Table C6
Rainwater tank nodes assessment checklist. . . . . . . . . . . . . . . . . . . 87
Table C7
Wetland node assessment checklist. . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
Table C8
Swale node assessment checklist. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
Table C9
Bioretention and bioretention swale nodes assessment
checklist. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
Table C10 Buffer node assessment checklist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90
Table C11
Gross pollutant trap node assessment checklist. . . . . . . . . . . . . . . . 91
Table C12
Sediment basin node assessment checklist. . . . . . . . . . . . . . . . . . . . . 91
Table C13
Infiltration node assessment checklist. . . . . . . . . . . . . . . . . . . . . . . . . 92
Table C14 Porous pavement node assessment checklist. . . . . . . . . . . . . . . . . . 92
Table C15
Sand filter node assessment checklist. . . . . . . . . . . . . . . . . . . . . . . . . 92
Table C16 Media filtration node assessment checklist. . . . . . . . . . . . . . . . . . . . 93
Table C17
Overall approval assessment checklist. . . . . . . . . . . . . . . . . . . . . . . . . 94
MUSIC Modelling Guidelines Version 1.0 – 2010.
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List of figures
Figure 3.1 Rainfall station locations across SEQ. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Figure 3.2 Surface types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Figure 4.1 Example of incorporating rainwater tanks in a split-surface
residential MUSIC model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Figure 4.2 Rainwater tank inputs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Figure 4.3 Typical localised and distributed inflow arrangements
to swale . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Figure 4.4 Modelling bioretention in series. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Figure 4.5 Directly connected bioretention systems . . . . . . . . . . . . . . . . . . . . . . 38
Figure 4.6 Bioretention in series with extra catchment area . . . . . . . . . . . . . . 38
Figure 4.7 Standard bioretention swale model. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Figure 4.8 Example of porous paving application in MUSIC.. . . . . . . . . . . . . . . 46
Figure 4.9 Example of sand filter application in MUSIC. . . . . . . . . . . . . . . . . . . . 47
Figure 4.10 Example of vegetated sand filter application in MUSIC . . . . . . . . 47
Figure 4.11 MUSIC generic node configuration for flow splitting. . . . . . . . . . . . 51
Figure 4.12 Example of CSTR cells . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Figure 5.1 User defined establishment cost entry. . . . . . . . . . . . . . . . . . . . . . . . . 55
Figure 5.2 Maintenance factor establishment cost entry. . . . . . . . . . . . . . . . . . 56
Figure 6.1 Example mean annual load results. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
Figure 6.2 Setting the low-flow using the flow-based sub-sample
option. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
Figure 6.3 Life cycle costing entry dialog . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
Figure 6.4 Life cycle costing results screen. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
MUSIC Modelling Guidelines Version 1.0 – 2010.
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1 Introduction
The Model for Urban Stormwater Improvement
Conceptualisation (MUSIC) is a software tool that
simulates the behaviour of stormwater in urban
catchments. MUSIC is the preferred tool for
demonstrating the performance of stormwater quality
treatment systems within urban areas.
The purpose of the MUSIC Modelling Guidelines is to
ensure a consistent and uniform approach to
stormwater quality modelling and assessment. This
guideline focuses on providing preferred MUSIC
parameters to demonstrate compliance with
stormwater quality management objectives and should
be read in conjunction with the MUSIC User Manual. See
Section 2 for further details on stormwater quality
management objectives.
Assessment authorities will require that all reporting of
MUSIC modelling submitted as supporting evidence with
development applications is consistent with these
guidelines unless locally specific guidelines are
available. Before preparing a MUSIC model for a
development application, the applicant should contact
the relevant assessment authority to ensure use of the
most current version of the guidelines and to fully
appreciate locally specific reporting requirements.
These guidelines have been prepared for urban
stormwater management professionals experienced in
using MUSIC and designing and/or assessing
stormwater quality treatment systems. Prior to
undertaking MUSIC modelling readers should refer to
the MUSIC User Manual and undertake formal training
in MUSIC modelling. MUSIC training is provided by the
eWater CRC. The eWater training provides a background
to the software, technical information that underpins
the model, and advice on how to set up a MUSIC model.
Further information about MUSIC is also available via
the Catchment Modelling Toolkit www.toolkit.net.au.
These guidelines do not provide advice on selecting or
designing stormwater treatment devices or treatment
trains. Refer to www.waterbydesign.com.au for further
information on planning, designing and constructing
stormwater management measures.
The guidelines are structured as:
• Chapter 2: Stormwater management objectives
– discusses stormwater management objectives.
• Chapter 3: Catchment model set-up – specifies the
preferred meteorological data; source node, rainfall
runoff, pollutant export parameters; and the definition
of MUSIC catchments.
• Chapter 4: Stormwater treatment nodes – provides
guidance on the configuration and parameters for
modelling stormwater treatment nodes.
• Chapter 5: Life cycle cost – summarises the method
for estimating life cycle cost information with MUSIC
and discusses the important cost information for
reporting.
• Chapter 6: Results – describes how to analyse model
results to determine whether the treatment strategy
complies with stormwater quality objectives.
• Chapter 7: Reporting and assessment – outlines the
information about MUSIC modelling required by
assessment authorities for development applications .
MUSIC Modelling Guidelines Version 1.0 – 2010.
1
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