Hydraulic Assessment_compressed

            STORMWATER QUALITY MANAGEMENT

In accordance with Council Planning Scheme Policy for Development Works, a development type MCU for
purposes other than industrial use and for lot sizes greater than 2500m2 and with a fraction impervious of less
than 25% will require vegetated buffers to waterways and drainage lines.


                      CONSTRUCTION PHASE

The design milestones for water quality during the construction phase of the development will be in
accordance with SPP Code: Water Quality. The design objectives will be achieved using approved Sediment
and Erosion Control measures.


General pollutants generated during construction are listed in Table 3 below.



Table 3 - General Construction Pollutants

            Pollutant                               Potential Source                          Priority
                            Paper, construction packaging, food packaging, cement bags,
        Litter                                                                                  High
                            off cuts
                            Unprotected exposed soils and stockpiles during earthworks
        Sediment                                                                                High
                            and building works
                            Fuel and oil spills, leaks from construction equipment and
        Hydrocarbons                                                                            High
                            temporary car park areas
                            Cement slurry, asphalt primer, solvents, cleaning agents,
        Toxic Materials                                                                       Medium
                            wash waters (e.g., From tile works)
        Alkaline
                            Cement slurry and wash waters                                       High
        Substances



Below are the characteristic treatment measures that will be implemented prior to any construction works.
Detailed Sediment and Erosion control measures and drawings are included as part of an operational works
application.

        •      Sensible site planning
        •      Stabilized site entry / exit point
        •      Minimization of site disturbance and duration of disturbance
        •      Implementation sediment control along the lower edge of the site
        •      Appropriate location and protection of stockpiles



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   2261 david low way, peregian beach, qld 4573      acn: 626 671 092                 [email protected]