Appendix C - Stormwater Management Plan

TfA Project Group Pty Ltd                                                                  Stormwater Management Plan
                                                                                                Development Application


   4     FLOODING


   A Storm tide Information Map (Map 10-D34) obtained from the Noosa Council website states that the site is outside
   the known floodplain extent. Refer to Appendix C for the Noosa Council’s Stormtide Information Map 10-D34 –
   September 2012. A close up of the Map showing the development site highlighted is shown in Figure 2 below.


   Figure 2: Close up of the Stormtide Information Map 10-D34 showing the development site (in red)




   5      PROPOSED DRAINAGE LAYOUT


   The post development stormwater drainage design generally maintains the overall catchment boundary, the design
   separates the high risk (hydrocarbon generating e.g. under the canopy) area from the low risk areas (the rest of
   the site). Any spillage or minor spills from under the canopy will be captured by grated gully pits and directed to a
   Spel® Puraceptor for hydrocarbon removal, which then discharges to the stormwater network. The fuel delivery fill
   point (unloading area) will be located under the canopy and any spills that might occur during unloading will be
   directed to the Spel® Puraceptor. A licensed contractor will remove the contents of the Puraceptor when required.


   Stormwater runoff generated from low risk areas (the rest of the site) will be captured and conveyed by gully pits
   and underground pipes, which then discharge to the legal point of discharge on Eumundi Noosa Road. All the
   stormwater runoff generated from low risk areas on the site will be treated using Spel® Stormsacks. Refer to
   Appendix E for a concept plan of the stormwater drainage and site grading.


                            123 Eumundi Road (Cnr Walter Hay Drive), Noosaville QLD 4566                             Page 3