Appendix F

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


 Hyd. No. 3
 TOTAL PRE DEVELOPED

 Hydrograph type                     = Combine                                   Peak discharge         = 0.145 cms
 Storm frequency                     = 2 yrs                                     Time to peak           = 8 min
 Time interval                       = 1 min                                     Hyd. volume            = 87.1 cum
 Inflow hyds.                        = 1, 2                                      Contrib. drain. area   = 0.537 hectare




                                                   TOTAL PRE DEVELOPED
Q (cms)                                                                                                                    Q (cms)
                                                           Hyd. No. 3 -- 2 Year
0.180                                                                                                                      0.180




0.150                                                                                                                      0.150




0.120                                                                                                                      0.120




0.090                                                                                                                      0.090




0.060                                                                                                                      0.060




0.030                                                                                                                      0.030




0.000                                                                                                                      0.000
          0          2           4           6            8          10          12       14       16      18         20
                                                                                                                   Time (min)
                 Hyd No. 3                       Hyd No. 1                    Hyd No. 2