Appendix C- Civil Engineering Report · MCU23/0135

WATER QUALITY & DRAINAGE CODE
Performance Criteria and Acceptable Solution
Noosa Civic Stage 2 Retail Development
29 September 2023

               PERFORMANCE OUTCOMES                                                ACCEPTABLE OUTCOMES                                                           RESPONSE

                                                                   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 as part of the
                                                                  The development is designed to:
Development prevents increased bed and bank erosion and                1. limit the peak 1 year ARI event discharge within the        proposed development. Refer Stormwater Management Plan
sedimentation in receiving waterways by avoiding changes                  receiving waterway to the pre-development peak 1            for further information.
in low rate, peak flow run-off and flow duration.                         year discharge;
                                                                       2. maximise pervious areas by using pervious
                                                                          alternatives for otherwise impervious areas wherever
                                                                          possible;
                                                                       3. provide for capture and reuse of stormwater for non-
                                                                          potable purposes for gardening, toilet flushing,
                                                                          laundry and hot water supply uses;
                                                                       4. incorporate appropriate detention features; and
                                                                       5. incorporate natural channel design principles

                                                                   Editor’s note: The Sustainable Building Design
                                                                   Code includes requirements for stormwater capture and
                                                                   reuse.

PO11                                                               AO11.1                                                             No new stormwater conveyance channels are proposed as
Water sensitive urban design principles are applied to             The design and construction of a natural channel or natural        part of the development.
achieve multifunctional design of waterways, wetlands and          channel rehabilitation works are in accordance with the
drainage lines that provide for:                                   Natural Channel Design Guidelines (Brisbane City
                                                                   Council) having regard to local topography, geology and
     1. stormwater conveyance that uses natural channel            geomorphology.                                                     Bioretention basins will be utilised for the treatment of
        design;
                                                                   AO11.2                                                             stormwater runoff. Refer Stormwater Management Plan for
     2. protection of landscape features and ecological
        important areas including terrestrial and aquatic                                                                             further information.
        habitat;                                                   Landscape features, plant species and habitat types used in
     3. aesthetic and passive recreation values;                   stormwater conveyance channels are complementary to the
     4. flood management and conveyance of external                local context and natural waterways.
        catchment stormwater through the development;
     5. landscaping that incorporates local native species;        AO11.3
        and
                                                                   Bank and bed stability and planting densities result in a

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