Attachment 7B - Site Based Stormwater Manamgment Plan by ADG

                                                                RACV Noosa Resort: 94-142 Noosa Drive, Noosa Heads

                                                                         ADG Ref: 22366 C R10 Rev04 14.12.22.docx

                                                                                                   December 2022




 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 Version 1.0, Water
 by Design 2010. The source nodes in the model are split into two 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 1595 mm, and data from: 1/1/1973 to 31/12/1983. Evaporation was
 applied as monthly mean. The mean annual evaporation was 1201 mm.




 Source Nodes, Fractions Impervious:

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

 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 / DARWIN / GOLD COAST / HOBART / MELBOURNE / PERTH / SUNSHINE COAST / SYDNEY / TOOWOOMBA