Stormwater Management Report · MCU19/0008

As shown in Table 3, the peak flow rate of stormwater runoff and the total runoff volume off site has
reduced as a result of the stormwater management system. The proposed infiltration/detention tank is
therefore considered to be adequate. Results for the 1% AEP, 10min duration event are outlined in
Figure 5 and 6 below.


         Peak Flow measured at rear = 48L/s




          Total runoff volume (Node A inflow)
          = 24.58m3




               Figure 5 - XP Storm Results; Pre-Developed Model (1% AEP, 10min Duration)


         Peak Flow measured at rear = 46L/s




          Total runoff volume
          (Node A inflow + Node B outflow) = 16.75m 3



               Figure 6 - XP Storm Results; Post-Developed Model (1% AEP, 10min Duration)



4 April 2019                           Stormwater Management Report                                9
S18-030                                   22 Arakoon Crescent,