PM Submission - John Cochrane - MCU21/0110

“Adamson Town Planning, specialising in providing higher order town planning advice”



         management and reductions to total volume of runoff from the development site as a whole10.
         There is also some onsite detention occurring with the provision for a 135kl rainwater tank used
         for topping up the resort pools.

         In terms of water quality management, it is proposed to utilise the existing stormwater
         management areas (vegetated buffers, vegetated swales, and the lake system on the adjoining
         land (Lot 3 on SP178340) constructed as part of the Noosa Springs Golf and Spa Resort. These
         devices provide primary water quality treatment of stormwater flows from the existing and
         proposed development sites. Harvested rainwater is utilised for irrigation of the golf course and
         landscaped areas. The existing constructed waterbodies provide tertiary treatment of stormwater
         flows and also provide frequent flow management and reductions to total volume of runoff from
         the development site11.

         The Engineering Report has addressed the relevant performance outcomes under the Water
         Quality and Drainage Code (refer Table 5 in Appendix E). The following comments are made about
         the most relevant overall outcomes under the Water Quality and Drainage Code:
             a) the waterways, wetlands, drainage lines, receiving environments and other ecologically
                 important areas will be protected and enhanced by the management of water quality and
                 quantity of stormwater runoff from the proposed development in accordance with best
                 practice (OO(a));
             b) the stormwater drainage systems have been designed and will be constructed to
                 effectively manage or convey stormwater in a way that will protect people, property, and
                 the natural environment (OO(b));
             c) stormwater infrastructure and treatment systems are compatible with the existing
                 infrastructure and has been designed and will be constructed to be cost effective across
                 the design life. It was originally intended that development within the greater Noosa
                 Springs development be managed in this manner with the existing infrastructure having
                 already been provided to cater for the scale of development under the POD (refer
                 Background, above) (OO(c));
             d) it is not expected that climate change will have significant implications for the stormwater
                 design and management, or the function and capacity of the stormwater infrastructure
                 and treatment systems in this location which are to be maintained over time (OO(d));
             e) the stormwater infrastructure existing and proposed will not affect the flood immunity of
                 roads based on desired standards of service identified for different flood hazard areas
                 (OO(e));
             f) the existing stormwater treatment systems are visually integrated into the existing golf
                 course, which incorporates natural, features and habitats (OO(f));
             g) the existing stormwater management treatment system is multifunctional providing for
                 stormwater conveyance, protection of ecologically important areas and erosion and
                 sediment control (OO(g));
             h) the hydrologic regimes are being managed on site to maintain waterway stability, protect
                 ecology and groundwater dependent ecosystems, and mitigate flood risk to people and
                 property (OO(h)); and



         10 Engineering Report, part 5.2
         11 Engineering Report, part 5.3




         Noosa Springs Boutique Hotel – GH Australia Pty Ltd                             Page 55