Response to Information Request - REC13/0015

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    Post DEVELOPMENT Q100Cooroy st                       noosa 100-Year   Duration=10 min, Inten=250.8 mm/hr
    Prepared by {enter your company name here}                                                  Printed 19/04/2013
    HydroCAOO 10.00 sIn 05328 @ 2011 HydroCAD Software Solutions LLC                                       Page 10

                                   Summary for Pond 2P: 47sqm Bioretention

    Inflow Area =             0.3719 ha,100.00% Impervious, Inflow Depth = 51 mm           for 100-Year event
    Inflow         =     0.25908 [email protected] hrs, Volume=           0.188 MI
    Outflow        =     0.23270 [email protected] hrs, Volume=            0.188 MI, Atten= 10%, Lag= 5.1 min
    Primary        -     0.08122 [email protected] hrs, Volume=           0.030 MI
    Secondary      =     0.15147 [email protected] hrs, Volume=           0.158 MI


    Routing by Stor-Ind method, Time Span= 0.00-3.00 hrs, dt= 0.01 hrs 1 2
    Peak Elev= 102.578 [email protected] hrs   Surf.Area= 0.0083 ha Storage= 0.035 MI


    Plug-Flow detention time= 2.0 min calculated for 0.187 MI (100%of inflow)
    Center-of-Mass det. time= 2.0 min (11.3   9.3 )-




    Volume             Invert   Avail.Storage    Storage Description
        #1        101.900 m          0.037 MI    4.00 mWx 6.25 mL x 0.70 mH Prismatoid Z=3.0


    Device        Routing           Invert   Outlet Devices
        #1        Primary       102.300 m    90.0 deg x 0.10 m long x 0.30 m rise Sharp-Crested VeelTrap Weir
                                             Cv= 1.38 (C= 1.72)
        #2        Secondary     101.150 m    225 mm Round Device 1
                                             L= 5.00 m     RCP, groove end w/headwall, Ke= 0.200
                                             Inlet 1 Outlet Invert= 101.150 m 1 101.100 m S= 0.0100 m/m Cc=
                                             0.900 n= 0.010 PVC, smooth interior, Flow Area= 0.040 m2
        #3        Device 1      102.200 m    600 mm x 600 mm Horiz. Orifice/Grate       C= 0.600
                                             Limited to weir flow at low heads


    Primary OutFlow Max=0.08062 [email protected] hrs HW=102.577 m                     (Free Discharge)
    L1=Sharp-Crested VeelTrap Weir (Weir Controls 0.08062 [email protected] m/s)
        L3=Orifice/Grate (Passes 0.08062 m3/s of 0.50319 m3/s potential flow)

    Secondary OutFlow Max=0.15142 [email protected] hrs HW=102.577 m                     (Free Discharge)
    L2=Device 1 (Inlet Controls 0.15142 [email protected] m/s)