Judgment - Stockwell v Noosa Council - PEC Appeal 1998 of 2024 - 26.06.25 · MCU22/0094

7 > 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 Noosa Civic subdivision stormwater network,
South-West of the site within the future access road corridor and the existing pipe running through the
pedestrian path to the west of the site. The existing Noosa Civic lawful point of discharge is the Creek
tributary to the South of the site, off Eenie Creek.

Stormwater runoff from the new roof, carpark, internal road and servicing areas will be directed to either
one of two bioretention basins and an OceanProtect Jellyfish filter manhole for stormwater quality
treatment. High flow bypasses will be constructed around the bioretention basins for flows exceeding the
treatment flows. Roof water will be harvested via a new slimline 3kL rainwater tank, sufficient for toilet
flushing reuse.

An upstream stormwater inlet pipe will be constructed at the northern boundary to capture external site
runoff and bypass the 12m2 bioretention basin. This will outlet to the existing pipe, to the western
boundary of the site to provide a discharge point for the balance lot to the North.

Approximately 330m2 of the access driveway, pavement and landscaped areas, to the south of the
bioretention basin at the entry and the landscape buffer area, will bypass the bioretention basins and
the OceanProtect Jellyfish device to allow the driveways to join neatly into the existing external road. The
treated areas will be over treated so the overall net water quality objectives are achieved for the
development.

Stormwater discharged from site is proposed to be consistent with the existing Noosa Civic Subdivision.
The development sits within a lot that has been allowed for in subdivision works stormwater calculations,
therefore no detention is proposed for this development.



8 > Limitations of Report

MPN have prepared this report for the proposed childcare centre development at Lot 3 & 4, Noosa
Business Centre, 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.




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Inspired engineering

10 April 2025
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https://mpncnetau.sharepoint.com/sites/Administration/Shared Documents/9000-9999/9300-9399/9307/Reports/10-04-25 Stormwater Management Plan_Issue G.docx