Appendix 4 - Engineering Report (00012423)

Doug Reynolds

TOD Consulting
by email

10 June 2015

30-32 DOONELLA STREET, TEWANTIN – PRELIMINARY STORMWATER MANAGMENT

Dear Doug,

AquaIntel have been commissioned by TOD Consulting on behalf of Serina Pty Ltd to undertake a preliminary
investigation into the stormwater management options of their proposed multi-unit development at 30-32
Doonella Street, Tewantin. The purpose of this investigation is to identify the preliminary sizing of water quality
treatment and detention device that might be required to be implemented in order to support the application.
Preliminary advice is also sort as to if the site is likely to be impacted by flooding.

The Pollution Load Reduction Targets, non-worsening and flooding criteria as outlined in the Division 20 – Water
Sensitive Urban Design Code and Division 18—Transport, Roads and Drainage Code of the Noosa Shire Council’s
(NSC) “The Noosa Plan”.

SITE AND CATCHMENT

The proposed site is located at 30-32 Doonella Street, Tewantin. The contributing catchment is constrained to
the site only with no major external catchment identified that influences the site. The carpark and buildings to
the rear of the site drain to Sidoni Lane and Sidoni Street. The carpark to the east of the site drains to Doonella
Street. The site has a catchment area of 2539m2 and grades from the rear to the front (to Doonella Street).




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