06-09-22 Stormwater Management Plan_Issue F · MCU21/0175

 6 September 2022


The site generally slopes to the Western corner of the site towards the existing internal road
network and access driveway servicing the site. During previous stages of development, the lot was
mounded and topsoil / mulch stockpiles centrally located to evenly discharge to all boundaries of the
proposed development.

Stormwater runoff from the existing site sheet flows in all directions from the previously mentioned
mound. Overland flow is collected in a shallow swale and by a field inlet in the South Eastern corner
of the site where is discharges along with the remainder of the site into the gully pits located in the
internal road of the Noosa Civic Shopping Centre. The shopping centre drainage system discharges
to the creek to the South of the site.

A copy of a survey plan for the site prepared by Bennett and Francis is attached in Appendix 2.


4         SITE DATA
Site data has been obtained from the following sources of information:
         Survey Data
         Noosa Shire Council
         Satellite Imagery
         Relevant Reports
         Dial Before You Dig (DBYD).


5         STORMWATER
5.1       Flooding

Based on Noosa Shire Council flood mapping, the site is not subject to flooding from any sources.

5.2       Lawful Point of Discharge

The lawful point of discharge for the development site is the existing internal Noosa Civic Shopping
Centre stormwater infrastructure south of the proposed development. The existing Noosa Civic
Shopping Centre lawful point of discharge is the Creek to the South of the site.

5.3       Site Based Stormwater Management Plan

The aim of the Stormwater Management Plan outlined below is to:

         Prevent or minimise adverse social or environmental impacts from stormwater runoff
          originating from the proposed development.
         Achieve acceptable levels of stormwater runoff quality and quantity.

The Stormwater Management Plan aims to identify Stormwater Quantity and Quality Best
Management Practice for the site and demonstrate that water quantity and quality impacts will be
minimised in receiving waters.




 Excellence with Economy in Engineering                                                                   7
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