080624 2383-01 FINAL Engineering Report for DA.pdf [As Published] · 132008.1128

BLUE CARE SUNRISE BEACH
ENGINEERING REPORT FOR DEVELOPMENT APPLICATION


and Sediment Control Plan will be implemented as part of the overall Environmental
Management Plan prepared for the construction phase.

Erosion and sediment control measures will be implemented in accordance with Council
requirements and the recommendations of “Soil Erosion and Sediment Control,
Engineering Guidelines for Queensland Construction Sites” by Institution of Engineers
Australia, 1996.

2.5 STORMWATER QUALITY

    2.5.1          MUSIC Water Quality Model

    Stormwater quality was modelled using the program MUSIC (Model for Urban
    Stormwater Improvement Conceptualisation – developed by the Cooperative Research
    Centre for Catchment Hydrology) to confirm that the proposed water quality control of
    runoff treatment will meet the desired water quality criteria.

    MUSIC is a conceptual model used to simulate urban stormwater systems and assess
    the effectiveness of stormwater quality treatment devices. Although multiple stormwater
    treatment devices are proposed, the conceptual model is based on total volumes,
    areas, etc. The model schematic is shown in Figure 2.1. Simulations were run using a
    6 minute time step

    Rainfall and potential evapotranspiration (PET) data series for Nambour (1989 to 1998)
    were used in accordance with the Water Sensitive Urban Design Technical Design
    Guidelines for South East Queensland (Healthy Waterways).

    Brisbane City Council (BCC) has carried out an extensive monitoring program, specific
    to the MUSIC model, to determine the rainfall-runoff and pollutant export parameters for
    various land uses.    The findings of the study are detailed in BCC Guidelines for
    Pollutant Export Modelling in Brisbane Version 7 - Draft (2003). In addition to the BCC
    Guidelines the MUSIC Modelling Guidelines prepared by Gold Coast City Council
    (2006) have also been adopted where relevant to improve the quality in the modelling.
    These parameters were adopted for the rainfall-runoff and pollutant export parameters
    from the proposed development.
    Figure 2.1, MUSIC Model Schematic




Blue Care Property Development Unit                 Version 1.1                            24 June 2008
2008 06 24 2383-01 Engineering Report for DA   Commercial in Confidence                          Page 7