Stormwater Management Plan

SC5551 - 28 Elkhorn Dr, Tewantin                                                                       6




3.0 Water Quality Management
3.1      Background
A requirement of the proposed development is that Stormwater quality treatment shall be provided to meet
the design objectives set out in Section 2.4 of DERM’s Urban Stormwater Quality Planning guidelines 2010
and the associated with State Planning Policy (SPP) 4/10 Healthy Waters. The scope typically
encompasses the ‘post construction’ phase of the development however ‘construction phase’ water quality
is briefly addressed.


3.2      Construction Phase
Table 3.1 has been adapted from Table C4.1 of Brisbane City Council’s (BCC) Stormwater Best
Management Practices 2000 and details the typical stormwater pollutants which may be generated during
the construction phase of the development.


                      Pollutant                                     Sources

                         Litter                  Paper, construction packaging, food packaging,
                                                            cement bags and off-cuts

                     Sediment                   Unprotected exposed soils and stockpiles during
                                                            earthworks and building

                  Hydrocarbons                Fuel and oil spills, leaks from construction equipment

                  Toxic Materials            Cement slurry, solvents, cleaning agents, wash waters

             pH Altering Substances                       Cement slurry, wash waters

                                   Table 3.1 –Typical Construction Phase Pollutants



         The following measures should typically be implemented prior to the commencement of
         construction:

                  Education of all site workers in sediment and erosion procedures

                  Specified storage areas for construction materials and plant that are bunded to prevent
                  any spillages from escaping