Item 11 Appendix E - Stormwater Management Plan-1.0 · MCU22/0094

20 May 2022


5.6.3 Erosion and Sediment Control Measures

   •     Obtain a licence or approval to operate activities that are classed as environmental
         relevant activities (i.e. they have the potential to cause environmental harm).
   •     Implement and maintain appropriate control measures to prevent sediment leaden
         wastewater and other potential pollutants such as oil, paint and wet concrete from entering
         the stormwater system via stormwater drains and gullies. The control measures which
         must be considered to be adopted are:
             • Limit site access during construction to minimise disruption to traffic
             • Install a temporary construction entry/exit sediment trap at all site accesses to
                 minimise mud and sediment from the site being tracked onto public road,
                 particularly during wet weather or when the site is muddy.
             • Install and maintain appropriate sediment fences around construction areas
                      ▪ Divert clean stormwater runoff, using catch drains, around construction
                          areas to existing or new stormwater drainage system.
                      ▪ Install sandbags and other pollution containment devices around
                          stormwater drains and any other locations where required to prevent
                          sediment entering the trunk stormwater system.
                      ▪ Cover open earth/soil areas progressively (with concrete slabs and
                          pavements or mulch) to minimise areas of bare earth/soil.
                      ▪ Any stockpiles of excavated soil and demolition / construction waste must
                          be located where risk of erosion and sediment is minimal, and must be
                          protected from wind and water erosion.
             • Implement and maintain appropriate control measures such as catch drains and
                 sediment fences to prevent ponding of stormwater or discharge of stormwater
                 from the site to adjacent properties.
             • Provision of spill / pollution control equipment that is readily accessible to clean up
                 spills and leaks.
             • Ensure spill/pollution control measures are available and maintained in working
                 condition.
             • Sediment contained by the sediment control devices such as sandbags, sediment
                 fences and containment bunds must be frequently removed and placed in a
                 controlled area.
             • Implement an inspection schedule for any spill or leaks of any potential polluting
                 areas or activities.

5.6.4 Erosion Sediment Control Management Goals

   •     Licenses, approvals, permits and inspection reports are in order.
   •     Sediment or pollution control devices such as sandbags, sediment fences and containment
         bunds are in place, maintained and effective.
   •     Spill/ pollution control equipment is readily accessible at designated locations.
   •     No accumulated sediment is contained by the sediment control devices such as hay bales,
         sediment fences and containment bunds.
   •     No sediment exceeding a depth of 300mm in the pollution control devices (e.g. silt trap).




Excellence with Economy in Engineering                                                                   14
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