RFI - Appendix B Civil Engineering Report · MCU22/0038

 12 May 2022



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 and the existing drainage
system in Hofmann Drive. 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, carpark, and internal road will be directed to 2 bioretention
basins for stormwater quality treatment. High flow bypasses will be constructed around the
bioretention basins for flows exceeding the treatment flows.

The bioretention basins will be located in the south west and along the western boundary of the
site, with treated water discharging from site via the basement pump out system for basin 1 and
direct to the external network for basin 1. The basin 1 outlet through the basement is required due
to the high invert levels of the surrounding stormwater network to the south of the site.

Stormwater discharged from site is proposed to be consistent with the existing commercial 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. This development sits
within a lot that has been allowed for in previous stormwater assessments as part of the overall
Noosa Civic and Noosa Business Centre, therefore no detention is proposed for this development.


6         LIMITATIONS OF REPORT
MPN have prepared this report for the proposed Lot 22 Medihub 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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