MCU10/2083 Development Application part 2 - Attachment 7 - Stormwater Management Plan





5.8      MUSICRAINFALLPARAMETERS

NambourmeteorologicaldatawasutilisedfortheMUSICanalysis.Modellingofthesitewasanalysedforaperiod
of10years(1989–1998)usinga6minutetimestepperiod.Averagepotentialevapotranspirationdatahasbeen
takenfromtheMUSICsoftwarepackage.


5.9      MUSICTREATMENTNODEPARAMETERS

RainwaterTanks:

Rainwatertankswithatotalcapacityof20kLaretobeinstalledwithinthedevelopmentsite.Waterfromthe
rainwatertankswillbeutilisedforoutdoorirrigationandwashdownreuseandpotentiallytoiletflush.

BioRetentionSystem/RainGardens:

DetailsoftheproposedbioretentionsystemsareshowninTable16.AppendixAprovidesatypicaldetailfora
bioretentionsystem.

                                Table16MUSICBioRetentionSystemParameters
                           Parameter                     Raingardens         CarparkSystem1 CarparkSystem2

                ExtendedDetentionDepth(m)                  0.25                  0.25            0.25

                       SurfaceArea(m2)                       43                   30               40

         SaturatedHydraulicConductivity(mm/hr)             180                   180             180

                        FilterArea(m2)                       70                   30               40

                        FilterDepth(m)                       0.5                  0.5             0.5

            FilterMedianParticleDiameter(mm)                5                    5               5
                                     




    SITEBASEDSTORMWATERMANAGEMENTPLAN–RevisionD   37GibsonRoad,Noosaville                                 Page 13



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5.8 MUSIC RAINFALL PARAMETERS

JF

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URBANCONSULTANTS

 

Nambour meteorological data was utilised for the MUSIC analysis. Modelling of the site was analysed for a period

of 10 years (1989 — 1998) using a 6 minute time-step period. Average potential evapo-transpiration data has been

taken from the MUSIC software package.

5.9 MUSIC TREATMENT NODE PARAMETERS

 

Rainwater Tanks:

Rainwater tanks with a total capacity of 20kL are to be installed within the development site. Water from the

rainwater tanks will be utilised for outdoor irrigation and wash down re-use and potentially toilet flush.

Bio-Retention System / Rain Gardens:

Details of the proposed bio-retention systems are shown in Table 16. Appendix A provides a typical detail for a

bio-retention system.

Table 16 - MUSIC Bio-Retention System Parameters

 

 

 

 

 

 

 

 

 

 

 

Parameter Raingardens | Carpark System 1 | Carpark System 2
Extended Detention Depth (m) 0.25 0.25 0.25
Surface Area (m’) 43 30 40
Saturated Hydraulic Conductivity (mm/hr) 180 180 180
Filter Area (m’) 70 30 40
Filter Depth (m) 0.5 0.5 0.5
Filter Median Particle Diameter (mm) 5 5 5

 

 

 

SITE BASED STORMWATER MANAGEMENT PLAN — Revision D

37 Gibson Road, Noosaville

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