Attachment D - Stormwater Management Plan · 132008.175.04

1.0      INTRODUCTION

This report is lodged in support of a Minor Change application to Noosa
Council seeking to develop residential unit buildings at Lot 9 SP195871,
Serenity Close, Noosa Heads.

The proposed development represents the fourth stage of residential unit
buildings developed by Cape Bouvard over the greater Settlers Cove site with
Alta Projects’ engineers having completed stormwater design, inspection and
certification for all previous stages.

Design solutions presented in this report are consistent with those previously
adopted with minor refinements borne of experience.

      1. In particular, this report addresses stormwater management issues
         raised, at conditions 41 to 45 of Material Change of Use Decision
         Notice 132008.175.03 dated 6 August 2019.

         41. A stormwater management plan shall be prepared by a RPEQ,
         specialising in stormwater and water quality management incorporating the
         principles of the Environmental Management Plan for the Settlers Cove
         Development (23118 DA), that demonstrates water
         reuse strategies, infrastructure capacity and effective treatment methodology.
         The use of rainwater harvesting tanks for irrigation purposes shall be
         incorporated in the overall design plans. These plans shall be submitted to
         Council for approval prior to obtaining a
         Development Permit for Operational Works.

`        42. Roof runoff from any new building should be directed to a rainwater
         storage system or tank (minimum 23,000 litres) that is installed to ensure
         water from the rainwater storage system or tank is used for external uses
         (such as watering gardens, irrigation, ornamental ponds, water features,
         topping-up swimming pools, outdoor cleaning, etc) and for internal (ground
         floor) use in washing machine cold taps and toilet cisterns. All rainwater tanks
         are to be designed and installed in accordance with the approved Stormwater
         and Water Quality Management Plan and the Queensland Development
         Code (QDC) current at the time of building approval, and shall be part of the
         plumbing application for approval. The location and capacity of the tanks shall
         be clearly shown on the plans submitted for Building Works/Operational
         Works approval and any overflow shall be directed to the stormwater
         drainage system.

         43. All stormwater drainage shall be collected on site and discharged so there
         is no net increase in stormwater runoff from the site.


         44. To ensure that polluted run-off does not enter the water table, the
         adjoining waterways or Council’s stormwater drainage system, stormwater
         run-off from the car parking areas and the driveways shall have the first flush
         (the first 12mm of rainfall or hose-down) collected in
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A6107/L9/SMP/RevA/Aug 2021                                                        Page 1 of 7
SH/pl
                     Brah101 Pty Ltd t/as ALTA PROJECTS