13. Appendix I - Integrated Water Mangement Plan

                                                                                Integrated Water Management Plan
                                                                        Noosa Marketplace : 2-20 HOFMANN DRIVE




7          Conclusions

Hydraulic modelling has demonstrated that the proposed development will have minimal impacts on the flood
levels within surrounding areas.
The majority of the flood level increases resulting from the proposed development are contained within the
development area with the exception of the Eenie Creek Road reserve.
Due to the development increasing storage in a natural flood storage area, reductions in flood depths along a
200 metre section of Hofmann Drive from the site access to Rene Street are anticipated.
RAFTS and MUSIC modelling has demonstrated that the proposed development can satisfy stormwater
quantity and quality requirements as per the SPP 2017, through the use of proprietary devices. On-site
stormwater detention is required to ensure that peak discharges from the site are not worsened. A detention
tank with a minimum volume of 1500 m3 is proposed.
Further detailed modelling of the stormwater quantity, quality requirements and flooding may be necessary
during the Operational Works stage once detailed design is completed.




V190428 | 15 May 2019 | Commercial in Confidence                                                             24