Civil Engineering Report

WATER QUALITY & DRAINAGE CODE
Performance Criteria and Acceptable Solution
23 Bottlebrush Avenue, Noosa Head
22 May 2025
             PERFORMANCE OUTCOMES                                                ACCEPTABLE OUTCOMES                                                             RESPONSE
                                                                    AO8.3
                                                                    Vegetated stormwater management systems
                                                                    to be dedicated as public assets are
                                                                    established and maintained during the
                                                                    maintenance period to ensure optimal
                                                                    vegetated growth and that the functional
                                                                    elements of the system achieve the design
                                                                    function at the end of the maintenance period.


PO9                                                                 AO9.1
                                                                                                                                     Not Comply - in accordance with the State
                                                                    Free draining inlets and outlets are provided to                 Planning Policy and Noosa Council
Treatment systems are designed to eliminate or
minimise health, safety and aesthetic hazards,                      ensure that waters do not pond for more than                     requirements. Refer stormwater management
including risks associated with insect breeding,                    24 hours.                                                        plan for further details.
odour and public safety.                                            AO9.2
                                                                    Developments are designed to eliminate
                                                                    retaining walls in excess of 0.8m for any water
                                                                    quality treatment device.

Hydrology and waterway stability
PO10                                                              AO10
                                                                                                                                     No increase in peak runoff from site will occur
                                                                  The development is designed to:                                    as part of the proposed development. Refer
Development prevents increased bed and bank
erosion and sedimentation in receiving                              a) limit the peak 1 year ARI event discharge                     Stormwater Management Plan for further
waterways by avoiding changes in low rate,                               within the receiving waterway to the pre-                   information.
peak flow run-off and flow duration.                                     development peak 1 year discharge;




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