Appendix F

                                                                                                                               3
 Hydrograph Report
 Hydraflow Hydrographs Extension for AutoCAD® Civil 3D® 2010 by Autodesk, Inc. v9.25                          Tuesday, Apr 5, 2011


 Hyd. No. 1
 pre developed catchment 1 & 2

 Hydrograph type                    = Rational                                   Peak discharge           = 0.049 cms
 Storm frequency                    = 2 yrs                                      Time to peak             = 8 min
 Time interval                      = 1 min                                      Hyd. volume              = 30.9 cum
 Drainage area                      = 0.183 hectare                              Runoff coeff.            = 0.7
 Intensity                          = 140.114 mm/hr                              Tc by User               = 8.00     min
 IDF Curve                          = NOOSA.IDF                                  Asc/Rec limb fact        = 1/1.6




                                               pre developed catchment 1 & 2
Q (cms)                                                                                                                      Q (cms)
                                                           Hyd. No. 1 -- 2 Year
0.060                                                                                                                        0.060




0.030                                                                                                                        0.030




0.000                                                                                                                        0.000
          0         2          4          6          8          10         12          14   16       18       20        22
                                                                                                                     Time (min)
                 Hyd No. 1