Appendix 3 - Stormwater quality management plan

Stormwater Quality Management Plan – Commercial Development at Weyba Road, Noosaville        CC-3668



2. STORMWATER QUALITY MANAGEMENT
2.1.    Background
This section of the report will outline the measures to be adopted to control the quality of
stormwater which leaves the site. The scope typically encompasses the ‘post construction’ phase
of the development however ‘construction phase’ water quality is also briefly addressed.

2.2.    Construction Phase
Table 2.1 details the typical stormwater pollutants which may be generated during the construction
phase of the development.

                         Table 2.1 – Typical Construction Phase Pollutants


                  Pollutant                                     Sources

                                        Paper, construction packaging, food packaging,
       Litter
                                        cement bags and off-cuts
                                        Unprotected exposed soils and stockpiles during
       Sediment
                                        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



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

   An Erosion and Sediment Control Plan prepared by a Certified Professional in Erosion and
    Sediment Control (CPESC);
   Education of all site workers in sediment and erosion procedures; and
   Specific storage areas for construction materials and plant bunded to prevent any spillages
    from escaping.

2.3.    Operational Phase
During the operational stage of the development, the following key indicating pollutants have been
identified in relation to stormwater runoff and water quality of the receiving waterways:

   Gross pollutants which include human derived litter, course sediment and vegetation;
   Hydrocarbons;
   Sediment and suspended solids; and
   Nutrients such as phosphorous and nitrogen.




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