MCU14/0056 - Attachment H -Economic Needs Assessment

                                                                                                                  ENG
                                                      Engineering Report & Stormwater Management Plan
                                              Date:          16/06/2014     Document No.:     14012-ENG-01.Docx

                                               By:              AvT          Revision No.:              B


WSUD Technical Design Guidelines for South East Queensland Version 1 (2006) and MUSIC
Modelling Guidelines for South East Queensland Version (2010).

It is proposed that best practise stormwater treatment be used and therefore it is required to
be demonstrated that achieve the following load reduction targets:


                  POLLUTANT TYPES                         WATER QUALITY OBJECTIVE (WQO)
             Total Suspended Solids (TSS)                  80% reduction of average annual load
                 Total Phosphorus (TP)                     60% reduction of average annual load
                    Total Nitrogen(TN)                     45% reduction of average annual load
                 Litter/gross pollutants                   90% reduction of average annual load
      Table 5.2:             Water Quality Objectives

                     c. MUSIC Model
The software program Model for Urban Stormwater Improvement Conceptualisation (MUSIC)
Version 6, was used was used to assess pollutant generation and the performance of the
stormwater treatment measures for the proposed development. Selection and testing of
stormwater management options was undertaken in accordance with MUSIC Modelling
Guidelines prepared by Water by Design (2010).

The MUSIC model was set up using four catchment areas:
      1.     Service    The proposed service station, car wash and main entry roads
      2.     Storage The proposed self-storage units
      3.     Tourist    The proposed tourist park
      4.     Future     The possible future development

The catchments where further split to include roof areas, road areas and ground areas in
accordance with the MUSIC Modelling Guidelines prepared by Water by Design (2010).




A PO Box 26, Carina Q 4152                                                                        9|P a g e
E [email protected]
W www.vtce.com.au