Appendix J - Civil Engineering Report and SBSMP.pdf

                                                                                  Noosa Residential Development
                                                                            Ref: 24553 C R002 REV03 10.08.21.docx
                                                                                                     August 2021



MUSIC Model Information

Introduction:

The quality of stormwater runoff and the impact of the proposed stormwater quality improvement measures
were analyzed using MUSIC Version 6.3.0 according to the MUSIC Modeling Guidelines by Water by Design.
The source nodes in the model are split into various types and a summary of the area breakdown is presented
below:

Meteorological Data:

The MUSIC model was carried out using the following parameters:
- Modeling period should be 10 years with a time step of 6 minutes
 - The nearest available 6 minute time step rainfall series to the subject site is Cooroy (Rainfall Station ID
040059), with a mean annual rainfall of 1,595 mm, and data from: 1/1/1973 to 31/12/1983. Evaporation was
applied as monthly mean. The mean annual Evapo-Transpiration was 1,201 mm.




Source Nodes, Fractions Impervious:

The areas of the source nodes were estimated from the Post Development Stormwater Catchment Plan as
shown in Appendix C.

Source Nodes - Pollutant Exports:

Rainfall runoff and pollutant export parameters were assigned per Tables 3.7 and 3.8 of the Water by Design
MUSIC Modeling Guidelines Version 1.0 (2010).

The rainfall runoff and pollutant export parameters for an Urban development were adopted.




BRISBANE / SYDNEY / MELBOURNE / GOLD COAST / SUNSHINE COAST / DARWIN / PERTH