B07056.W-01A Complete - Stormwater [As Published] · 132007.2398

Concept Stormwater Management Plan
RSL Care – Cooroy Retirement Village

                            CONCEPT
                   STORMWATER MANAGEMENT PLAN
                                                         FOR
          RSL CARE, COOROY RETIREMENT VILLAGE
                TRADING POST RD, COOROY

1.0       INTRODUCTION
Brown Consulting (QLD) Pty Ltd has been commissioned to prepare a Concept Stormwater Management Plan to
support the Development Application for the development of an existing rural site at Cooroy. The proposal for
the development comprises:
    •    118 Independent Living Units (ILU’s)
    •    2 Apartment Buildings
    •    Village Centre Community Building
    •    Residential Aged Care Building (120 beds)
    •    Internal Roads
    •    Car Parking Facilities
    •    Landscaping, and
    •    Water Management Systems including communal underground rainwater tanks for reuse, and two water
         quality control ponds incorporating stormwater detention.

This Stormwater Management Plan has been prepared according to The Noosa Plan (February 2006) and
Queensland Water Quality Guidelines (2006). The report comprises the following:
    •    Hydrological investigation for the two gullies on the site;
    •    Flood inundation investigation for the lower reaches of the two gullies;
    •    Detention basin investigation including concept detention basin sizing to mitigate peak flow rates to
         existing flow rates;
    •    Stormwater Quality Management Strategy outlining a treatment train of suitable Stormwater Quality
         Improvement Devices (SQID’s) to achieve relevant water quality objectives;
    •    Water Balance Modelling to demonstrate that the increase in runoff volumes from the proposed
         development can be mitigated;
    •    Response to Noosa Council’s Water Sensitive Design Code is provided to show compliance with the
         code has been achieved.

The methodology of the analyses, measures proposed, results and drawings are presented in the report.




B07056.W-01A.doc                                                                                        Page 1