Appendix 4 - Engineering Report (00012423)

Unit Development 30-32
Doonella Street, Tewantin

T
            the road level at this location is approximately RL 4.0, so the drain invert is
            approximately RL 3.0. This is low enough to enable a basement car park at
            RL 4.6 (as shown on building concept plan) to be drained by a gravity
            stormwater system to this pit. Note that we recommend that survey be
            undertaken to confirm the above drainage and pavement levels.


     Please refer to the attached marked up aerial photo showing the above details.


        4. STORMWATER MANAGEMENT

     Please refer to the attached report from Aquaintel which provides preliminary sizing
     of bioretention areas and detention volumes.




     Prepared by
     Doug Reynolds
     RPEQ 9072
     Tod Consulting Pty Ltd
     9 June 2015




     J/N 13672                                                                       June 2015
      Rev C                                                                         Page 2 of 2