MCU14/0106 & OPW15/0001 Information Request Response Report (absent appendices)

                                                                                                      Noosa Civic Expansion
                        28 Eenie Creek Road, Noosaville and parts of the road reserves of Hofmann Drive and Walter Hay Drive



5.3         Treatment Devices
            “The total size of water quality treatment devices shown on plans is not clear. The design must
            allow sufficient space within the development footprint for the active filter media area in
            bioretention basins. The active filter media area does not incorporate batters, inlet scour
            protection and overflow devices.

            Information Required:
            52   Provide legible scaled plans that demonstrate adequate footprint is provided to
                 facilitate the required active filter media area within bioretention basins along with
                 sufficient footprint for other aspects of the water quality improvement devices, such
                 as batters, inlet scour protection, etc.”
            RESPONSE
            Please refer to Appendix E – Stormwater Management Plan for a copy of the concept plans.

5.4         Legal Point of Discharge
            “It is unclear how waters treated within proposed bioretention basins will drain to a legal point
            of discharge or where this discharge point will be. There is concern that the underdrainage
            pipes will be lower than the invert of the receiving drainage lines.

            Information Required:
            53   Provide a preliminary drainage plan for flows into and out of water quality treatment
                 devices. Demonstrate outlets can all be contained within the site.”
            RESPONSE
            Please refer to Appendix E – Stormwater Management Plan for a copy of the concept plans.

5.5         Environmental Protection Act
            “The scale of the development in terms of roof and hardstand area exceeds that anticipated by
            current Noosa Plan. In addition to ensuring developments achieve the Water Quality Reduction
            targets under the State Development Assessment provisions, Council must ensure that any
            changes inconsistent with The Noosa Plan are consistent with the objectives of the
            Environmental Protection Act.
            The Environmental Protection Act and subordinate legislation calls for Planning Schemes (or
            other stormwater management documents) to ensure that water quality objectives in the
            receiving environment can achieve ongoing compliance with the document titled
            “Environmental Protection (Water) Policy 2009 Noosa River environmental values and water
            quality objectives Basin No. 140 (part), including Kin Kin Creek, Teewah coastal creeks, Lakes
            Cooroibah, Cootharaba, Doonella and Weyba July 2010.”
            The development is proposed within a catchment that is already heavily developed and the
            ecological processes within the receiving waters are expected to have minimal buffering
            capacity to withstand additional physiochemical changes.
            eSource Catchment software is able to model the status of a catchment and predict the quality
            of receiving waters.

            Information Required:
            54   Please provide an eSource catchment model for the entire catchment that drains to
                 the receiving waters of Eenie Creek. The eSource Catchment Model must presume
                 a fully developed catchment consistent with The Noosa Plan together with the
                 subject application. The eSource catchment model must demonstrate that the
                 development, including proposed water quality mitigation devices, will not diminish
                 the ability of Eenie Creek to achieve the relevant water quality objectives required
June 2015                                           Cardno HRP                                                           32