Appendix D- SWMP

 29 September 2023



5         CONCLUSION
This Stormwater Management Plan demonstrates that under the proposed concept plan
stormwater quality and quantity treatment is achievable to the levels required by State Planning
Policy July 2017.

The lawful point of discharge for the development site is the existing internal Noosa Civic Shopping
Centre stormwater infrastructure south of the proposed development. The existing Noosa Civic
Shopping Centre lawful point of discharge is the creek to the south of the site.

Stormwater runoff from the new roof and car park areas will be directed to a series of bioretention
basins for stormwater quality treatment. The site catchments will be split with a new stormwater
pipe network along both the northern and southern extents of the basement.

The existing car park will continue to drain to the remaining bioretention basins which will be
retained as part of the Stage 2 retail development.

Stormwater discharged from site is proposed to be consistent with the existing retail centre
discharge. Minor flows will discharge via the existing and proposed internal network with the major
flows flowing down the internal roads for discharge to the creek to the south. The retail centre will
be constructed over existing impervious area and will not increase the peak runoff volumes,
therefore no detention is proposed for this development.


6         LIMITATIONS OF REPORT
MPN have prepared this report for the proposed Stage 2 retail development at Eenie Creek Road
Noosaville in accordance with MPN’s proposal to Stockwell. This report is provided for the
exclusive use of Stockwell for this specific project and its requirements. It should not be used or
relied upon by a third party and MPN accept no responsibility for the use of this report by any party
other than Stockwell.




 Excellence with Economy in Engineering                                                                 19
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