Stormwater Management Plan -OPW (A) · OPW25/0042

  47.     The site must be provided with a stormwater drainage system connecting to a lawful
        point of discharge. The works must be undertaken in accordance with an Operational
        Works approval the Queensland Urban Drainage Manual, and must include in particular:
          a.        the works as generally described in the updated Stormwater Management Plan
                    required by this permit
          b.        collection and discharge of stormwater from the external catchment through the
                    development site, including provision of an overland flowpath which accounts for
                    severe storms or severe blockage of the underground network

               c.    provision of drainage easements over all flowpaths conveying catchments external
                    to the site, in accordance with QUDM. Easement dimensions and locations are to
                    be shown on the plans submitted with the development application for Operational
                    Works.
          d.        the use of gravity stormwater drainage and not surcharge pits



48.       Stormwater Quality Management
        A stormwater quality treatment system must be provided for the development in
        accordance with the updated Stormwater Management Plan required by this permit. The
        works must be undertaken in accordance with an Operational Works approval.




  53.     An easement for stormwater drainage purposes must be registered in favour of Council
        against the title of the subject site. The easement must:
          h.        Extend through the site from the northern Serenity Close frontage to the south-
                    western Serenity Close frontage,
          i.        Be of sufficient width to fully contain the 1%AEP flows (year 2100) from the local
                    catchment encompassing the development,
          j.        Be clearly shown on any plans submitted for Operational Works approval, and
          k.        Be registered prior to the commencement of the use.




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  A6769/25/SWMP/Rev OpW(A) – Feb 2025
  SH/PL                                                                                     Page 3 of 9
              Brah101 Pty Ltd t/as ALTA PROJECTS