Appendix C - Stormwater Management Plan

TfA Project Group Pty Ltd                                                                            Stormwater Management Plan
                                                                                                          Development Application


   7.2.5      Gross Pollutant Traps
   A GPT is a treatment device designed to capture coarse sediment, trash and vegetation matter in stormwater
   runoff. GPTs are often used as the first treatment element in a treatment train. Spel® Stormsacks or a similar
   approved product will be used within this development; the Stormsacks will be installed in gully pits, refer to
   Appendix F for typical details.


   7.3      Fuel Related Stormwater Treatment
   The treatment train shown in Figure 3 uses the Best Management guidelines to treat stormwater runoff from the
   site.

                                  Figure 3: Fuel related stormwater treatment philosophy


                                         Runoff Source                    Runoff from under canopy fuel
                                        Roof, Paved &,                      dispensing area and Tanker
                                         Grassed areas                             refuelling area


                                      Provision of rubbish
                                                                                 Signage/Education
                                               bins


                                      Signage/Education
                                                                               SPEL Puraceptor with
                                                                                     10,000 litres
                                       Primary treatment                        containment capacity



                                          Discharge to
                                           stormwater
                                                                                 Waste Removal by
                                          infrastructure
                                                                                 licensed contractor




   Key features of the fuel related stormwater treatment process are detailed below.


   7.3.1      Fuel Dispensing Areas
   The fuel dispensing area will be concrete surfaced and covered by a canopy. The fuel dispensing area will be
   bunded to prevent stormwater runoff from outside the canopy flowing into the dispensing area and to ensure that
   any spills are contained within this area. The perimeter of the canopy will overhang the dispensing containment
   area by 10 degrees to reduce the amount of windblown rain into the dispensing area. Any flows/spills in the
   containment area will drain to gully pits which will discharge to an appropriately sized Spel® Puraceptor.


   Bulk fuel transfers from a road tanker to underground tanks will take place under the canopy; any runoff from the
   dispensing area will be directed to a Spel® Puraceptor. A spill containment box at fill points will capture any minor
   fuel spills that may occur during unloading; the spilt fuel will then drain from the containment box into the fuel
   storage tanks.



                            123 Eumundi Road (Cnr Walter Hay Drive), Noosaville QLD 4566                                      Page 11