Swmp

6.2      Proposed Drainage
The proposed site drainage is detailed in drawings SCG 33132 - SW1.1 - SW1.4 (Appendix D) and is
discussed below.

As defined in the Noosa Plan 2020 stormwater drainage must be designed in accordance with QUDM
2017, therefore the following design storms were adopted: -

         1.     Minor Drainage System        -      10% AEP ARI (Q10 Storm)
         2.     Major Drainage System        -       1% AEP ARI (Q100 Storm)

6.3      Downstream Infrastructure Consideration
The mitigated peak flow rates for both discharge points will be less than existing peak flow rates
discharging to the existing drainage infrastructure located in Lot 108 on SP106085, No.6 Starboard
Avenue, & the existing stormwater drainage infrastructure located within Headland Drive, as discussed
in Section 4.1. Therefore, it is considered acceptable as existing stormwater peak flows maintain existing
conditions.




7.0      FLOODING


Information provided from Noosa Council’s Flood Hazard Overlay Map confirms the site is unaffected
by flooding.




SCG Consulting Engineers                  Page 22                             SCG Ref: 33132(SWMP).RevB