Attachment C - SWMP Report by Bax Engineering_compressed

Gumdale Court to the south. This stormwater system will be upgraded to a 300mm diameter pipe from the
connection to the existing pit located adjacent in 11 Bartlett Street. This will collect minor storm events and
roof water runoff while major events will be directed to the Bartlett Road frontage. Earthworks will be needed
to achieve these design levels to allow overland flow to reach the Bartlett Street frontage.


Based on the post-development impervious fraction the site was calculated to have a peak flow for a 1% AEP
design storm event as 0.054 m3/s.
Of this volume 0.033 m3/s is a minor storm event and would be directed to the existing pipe system. The
remaining volume of 0.021m3/s would be directed to the Bartlett Street frontage.




Figure 2 – Stormwater Network and Contour Plan
Source: Noosa Council Mapping




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