Appendix D Stormwater Management Plan · MCU22/0038

 15 March 2022




A bioretention basin will be located along the southern boundary of the site with bypass flows
discharging to the existing stormwater in the south east corner of the site. The treated flows will
connect to the basement drainage system for pump out to the external drainage system. This is
required due to the high invert levels of the existing external stormwater network.

A bioretention basin will be located on the western boundary of the site with bypass flows
discharging to the existing stormwater in the north west corner of the site. The treated flows will
connect to the basement drainage system for pump out to the external drainage system. This is
required due to the high invert levels of the existing external stormwater network.

Stormwater treatment will be implemented to remove sediments, nutrients, gross pollutants and
hydrocarbons in accordance with the requirements of Noosa Council and the State Planning Policy.

Stormwater discharged from site is proposed to be consistent with the existing commercial
development discharge. This development sits within a lot that has been allowed for in previous
stormwater calculations, therefore no detention is proposed for this development.

The proposed conceptual stormwater drainage layout is depicted on MPN Plan 8662-CP.1.01
attached in Appendix 3.


4.5.2 Stormwater Quantity Management Strategy

The proposed development site will connect into the existing drainage system for the Noosa Civic
Shopping Centre and Hofmann Drive drainage system. The sites minor flows will run through the
existing pipe system whilst the major overflows will overland flow down the internal roads prior to
discharging to the Creek to the South of the site. There will be no impacts to external properties as
a result of the development flows through the internal site system.

The proposed development site has existing stormwater infrastructure which will be utilised for
the Medihub development.




 Excellence with Economy in Engineering                                                                 9
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