Attachment C - Current DA MCU15.0111 · MCU15/0111.03

Noosa Council documents




                                                                                                    MCU15/0111


                      63.     The development must not adversely impact on the existing drainage conditions on
                              other properties. The applicant must demonstrate that all stormwater runoffs from
                              the fully developed site must be maintained at predevelopment rates for all storm
                              events up and including 1% AEP storm event.
                      64.     Stormwater runoff generated from the development must be treated to achieve the
                              Water Quality Objectives as specified under Healthy Waterways Water Sensitive
                              Urban Design – Technical Guidelines for South East Queensland (2006) as well as
                              the State Planning Policy 2014 (SPP 2014) prior to release off site. For the
                              purpose of this condition, treatment of waters from catchments B1 and C1 as
                              shown on Drawing B14158.W-SK100 A by Calbre Consulting, dated 050/2/16 shall
                              be considered as part of the development to determine mitigation requirements
                              and load reduction targets.
                              If detailed design demonstrates insufficient footprint is available for the water
                              quality treatment devices to achieve the pollutant reduction targets of 80%
                              reduction in Total Suspended Solids, 60% reduction in Total Phosphorous, and
                              45% reduction in Total Nitrogen compared to an unmitigated development, the
                              applicant must increase available space to ensure the water quality objectives can
                              be achieved.
                      65.     Stormwater Quality Treatment must be designed in accordance with the Water by
                              Design MUSIC modelling Guidelines. Any deviation away from the
                              recommendations of the Water by Design guidelines may only be approved where:
                              65.1. letters signed by the authors of the Water by Design MUSIC modelling
                                    guidelines and/or eWater MUSIC modelling program are provided to confirm
                                    that the modelled design is expected to meet the required water quality
                                    outcomes at the discharge point of the site; and
                              65.2. a contingency plan to monitor for and to remove cyanobacterial and algal
                                    outbreaks from waterbodies, including costs, is provided for approval with the
                                    Operational Works application and the approved version is implemented
                                    throughout the lifetime of the development. All stormwater runoff treatment
                                    must be undertaken within the development areas of the site. Stormwater
                                    likely to contain grease and oil (i.e. from all roads and car parking areas)
                                    shall be managed via grease and oil arrestors prior to treatment within
                                    bioretention basins, wetlands and water quality control ponds.
                      66.     Wetlands, bioretention basins and other water quality treatment devices shall be
                              designed and constructed in accordance with Healthy Waterways Water Sensitive
                              Urban Design – Technical Guidelines for South East Queensland 2006, Water by
                              Design Bioretention Technical Design Guidelines 2014, Healthy Waterways Water
                              by Design Construction and Establishment Guidelines: Swales, Bioretention
                              Systems and Wetlands February 2009. In the case of any inconsistencies between
                              these documents, the most recent document shall prevail.
                      67.     Stormwater treatment strategy must be designed and maintained to achieve
                              compliance with the approved version of B14158.W.07L.AMcP.ag.docx dated 8
                              October for the Stormwater Management Construction and Maintenance Plan
                              Framework.
                      68.     The detailed Stormwater Management Construction and Maintenance Plan
                              (SMCMP) must be designed and implemented in accordance with the framework
                              detailed in the approved version of B14158.W.07L.AMcP.ag.docx dated 8 October
                              and approved by the Council prior to issue of operational works approval:




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Document Set ID: 20103451
Version: 1, Version Date: 25/07/2016                                                                 Print Date: 25 July 2016, 3:34 PM