Request change to an approval 152004.240078.4

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                                                                                         152004.240078.1


        33.    The requirements of ENERGEX, OPTUS and TELSTRA shall be satisfied in relation to
              ,anyexislinrserVices~wni n curre- tIYtraverse-theaeveJopmentsite.-Wr tten
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              -confirmation by the-relevant authorities that satisfactory arrangements -have -been made
               to formalise any existing informal services shall be submitted prior to Council approving
               the Plan of Survey.

        Stormwater Drainage

        34.   All stormwater drainage shall be designed in accordance with the provisions of the 1987
              Australian Rainfall and Runoff (A.R.R.), Australian Standard AS3500.3.2-1998
              ’Stormwater Drainage-Acceptable Solutions’ and Noosa Council Standards. Pipe and
              channel drainage systems shall be designed to cater for the ten (10)year ARI design
              storm event. In all cases the major event surface flow paths shall be designed to cater
              for the one hundred (100)year ARI.

        35.   A suitably qualified Registered Professional Engineer, specialising in hydraulics shall
              prepare engilJeering drawings and specifications for stormwater designs, which shall be
              submitted in--conjunc!ion with an applicat >n fora J?evelqpment Permit for Qper~ltionaJ
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              Works.

        36.   The stormwater discharge from the development site shall be designed such that there
              is   no   net increase in the rate of discharge   as a   result of the development for storm
              events up to 100 year ARI.

        37.   ,Tabulated hydrologic and hydraulic calculations that -demonstrate the adequacy or
               otherwise of the existing site stormwater ’drainage system shall be submitted in
               conjunction with a Development Permit for Operational Works. Such calculations shall
               include any remedial measures necessary to rectify defects in the existing system.
               Where pr posed site draina2Je is to be connected to the existing system, the calculations
               shall clearly demonstrate the adequacy of the existing drainage network to accept the
              additional stormwater flows.

        38.   Plans detailing the existing and   proposed site drainage network including plans and
              longitudinal sections of pipeline, the location of pits, pipe invert and pit surface levels,
              junction details, size and class of pipes, trench conditions and details of surface flow
              paths together with tabulated hydrologic and hydraulic calculations that detail the
              drainage network and the capacities of the various surface flow regimes, shall be
              submitted to Council in conjunction with a Development Permit for Operational Works.

              Where flows are in excess of 100 litres/second then a hydraulic grade line analysis will
              be required.

              Where the catchment exceeds 1 Oha, the assessment shall be appropriately modelled.

        39.   Roof and surface water is to be collected     on   site and is to be discharged through a
              single underground drain line into existing drainage in Tanderra Drive.      The maximum
              discharge allowable to Council’s street gutter at anyone location is 25 litres/second. A
              Development Permit for Operational Works is required to be obtained in respect of the
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              drainage scheme.
        40.   Stormwater drainage shall include measures to protect proposed allotments from run-off
              from surrounding land.      The design shall also address controls for gross      pollutants,
              nutrient run-off, oil and grease, and silt and sediment.

              Underground stormwater systems shall be designed in accordance with Noosa Council’s
              Engineering Design Standards, and shall be connected, where possible to Council’s
              existing drainage systems.
              An easement, of minimum width 4.0 metres shall be granted in favour of Council over
              any stormwater pipes that traverse private property.