2015-11-26_Response to Further Information- Council

TfA Project Group Pty Ltd                                                                                                        Noosaville


         Further Information Requested                                   Development Response
             discharge and without interference with other
             underground infrastructure required for operation of        A detailed calculations table showing the surface and
             the use.                                                    invert levels of the proposed stormwater system has
                                                                         been provided (see attached). This table demonstrates
                                                                         that the pipe network, including the detention tank, can
                                                                         be connected to the Council’s stormwater drainage
                                                                         infrastructure.

                                                                         Refer to the Stormwater calculations sheet attached.

         9.   Demonstrate with the preliminary stormwater                TfA Project Group Civil Engineer Response below:
              drainage design how runoff from hardstand areas will
              be captured and reused on site, where possible, and        The development does not consider reusing treated
              polished through natural treatment strategies prior to     stormwater on site. The preliminary stormwater
              discharge from site.                                       drainage design captures and conveys run-off from
                                                                         hardstand areas via gully pits (fitted with Storm Sacks)
                                                                         and underground pipes connected to a detention tank
                                                                         prior to discharge from the site. Any hydrocarbon spill
                                                                         from under the canopy is also captured via gully pits
                                                                         and underground pipes directed to a Spel Puraceptor
                                                                         for hydrocarbon removal. The site’s treated stormwater
                                                                         then will discharge to the legal point of discharge.

         Issue – Gross Pollutant Trap Maintenance
         Some gross pollutant traps generate and leach water pollutants if not appropriately maintained and can cause non-
         compliance with Specific Outcome O6 of the Water Sensitive Design Code.

         Information Required                                            TfA Project Group Civil Engineer Response below:
         10. Provide confirmation from the applicant that the
             expected maintenance costs and labour associated            The gross pollutant traps will be maintained and
             with maintenance of gross pollutant traps, as               serviced by the owners of the development as per the
             compared to natural water sensitive design features,        manufacturer specifications.
             are understood and accepted.
                                                                         The developer understands and accepts the
                                                                         maintenance responsibilities and requirements of the
                                                                         stormwater treatment system (Spel units) proposed.


         In accordance with section 278 of the Act, this response comprises our formal response to the council’s information
         request.

         If you require any further details, please contact me on (07) 3854 2909 or mobile 0437 005 231.

         Yours faithfully,




         Hayley Edmunds
         Town Planner
         BUrbDev (URP), MPIA




                                                                Page 5 of 5                                                     26/11/2015