Attachment C - SWMP Report by Bax Engineering_compressed

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

                                      Table 1 - General Construction Pollutants

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
        •      Early connection of roof water downpipes
        •      Compaction of backfilled trenches
        •      Revegetation and stabilization of the site



            OPERATIONAL PHASE

The internal drainage system has been designed to include Stormwater Quality Improvement Devices which
is detailed in the plan shown in Appendix B.

               SPEL Stormsacks

SPEL Stormsack filtration solutions are deployed directly in the stormwater system to capture contaminants
close to the surface for ease of maintenance. They are placed into the stormwater inlet and use the filtration
technology for stormwater treatment. This will assist in meeting the specific site water quality goals. SPEL
Stormsack filters are also easier and quicker to clean out because pollutants are trapped just under the grate.


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