Storm Water management plan · MCU12/0133.03

Noosa Council documents


                  Bligh Tanner Consulting Engineers
                  Noosa Flexi Learning Centre Stormwater Management Plan
                  August 2012



                  Attachment A – MUSIC Modelling
                  The following reporting tables outline the key parameters used in the MUSIC Modelling for
                  this project. The table format is adopted from the Water by Design (2010) MUSIC Modelling
                  Guidelines V1.0. In accordance with that guideline, where recommended rainfall-runoff and
                  pollutant generation parameters are adopted, they aren’t reported.

                  Interested parties can review the model files to verify model parameters.

                  Table B8 Meteorological and rainfall runoff data reporting table
                            Input                                  Data used in modelling
                            Rainfall station                       Cooroy Composite 40059
                            Time step                              6 minute
                            Modelling period                       1/1/1973 – 13/12/1983 (11 years)
                            Mean annual rainfall (mm/yr)           1595 mm
                            Evapotranspiration (mm/yr)             1627 mm
                            Rainfall runoff parameters             Predevelopment: Forested
                                                                   Post development: Urban Residential (except for natural
                                                                   landscaped areas which use Forested parameters)

                            Pollutant export parameters            Predevelopment: Forested
                                                                   Post Development: Urban Residential (except for natural
                                                                   landscaped areas which use Forested parameters)


                  Table B9 Catchment definition reporting table
                            Catchment ID                   Area (m²)              Land use          Total impervious (%)
                            1 (reference to catchment      Total area of sub-     Residential,      Total impervious portion of
                            plan)                          catchment              commercial,       catchment as measured
                                                                                  industrial etc.   off development plans
                            Carpark                        370                    Residential       100%
                            Buildings                                             Residential
                              Knowledge                    170                    Residential       100%*
                              Amenities                    70                     Residential       100%*
                              Create                       318                    Residential       100%*
                              Retreat                      210                    Residential       100%*
                              Sound                        139                    Residential       100%*
                              Allied/Support/Eat/Gather    497                    Residential       100%*
                            Landscape                      3226                   Forest            0%
                            Turf                           600                                      0%

                            TOTAL                            5600
                           *Note this is roof area, not ground level impervious area


                  Table B10 Rainwater tank node reporting table
                            Rainwater tanks
                            Catchment ID                                                  Treatment node 1
                            Volume below overflow pipe (kL). If greater than 1 tank      20 kL
                            specify number of tanks, volume per tank and total e.g.
                            10 tanks x 5 kL = 50 kL
                            Depth above overflow (m)                                     0.1
                            If tanks are lumped, is depth below overflow the same as     n/a
                            a single tank and overflow pipe scaled accordingly
                                             2
                            Surface area (m ).                                           10
                            Overflow pipe diameter (mm). For lumped tanks this           150
                            must be equivalent to the diameter of the overflow pipe
                            of a single tank multiplied by the square root of the
                            number of tanks



                                                                                                               Print Date: 2 March 2020, 2:19 PM