RFI - Attachment 5 - Amended Stormwater Management Plan · MCU22/0094

 31 March 2023




5.6.7 Reporting / Review
Records such as licences, approvals, permits and inspection reports must be reviewed on a regular
basis (e.g. at least monthly) to ensure that legal compliance is met, complaints are reviewed and
systems are working to prevent contamination.

5.6.8 Corrective Actions

    •     Perform clean-up of any spills immediately.
    •     Any mud or sediment which is tracked onto public roads is to be immediately removed
          using dry clean-up methods i.e. shovel and broom.
    •     Remove or relocate any stockpiles of waste where there is a reasonable risk of erosion and
          sedimentation.
    •     Replace or repair sediment or pollution control devices if they are not maintained in good
          working condition.


6         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 and future Noosa Civic
Subdivision stormwater infrastructure south-west of the proposed development. The existing
Noosa Civic lawful point of discharge is the Creek to the south of the site.

Stormwater runoff from the new roof, carpark, internal road and servicing areas will be directed to
a bioretention basin 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 1.5kL rainwater tank, sufficient for toilet flushing reuse.

Approximately 140m2 of the access driveway and landscaped areas will bypass the bioretention
basins to allow the driveways to join neatly into the existing internal road system. 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.


7         LIMITATIONS OF REPORT
MPN have prepared this report for the proposed childcare centre development at Lot 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.


 Excellence with Economy in Engineering                                                                16
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