Appendix D- Stormwater Management Plan · MCU23/0078

Performance Outcomes                                               Acceptable Outcomes
                                                                   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
Treatment systems are designed to eliminate or minimise health, Free draining inlets and outlets are provided to ensure that waters
safety and aesthetic hazards, including risks associated with   do not pond for more than 24 hours.
insect breeding, 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                 Table 9.4.8.3 Criteria for assessment (part)
Performance Outcomes                                               Acceptable Outcomes
Hydrology and waterway stability
PO10                                                               AO10
Development prevents increased bed and bank erosion and            The development is designed to:
sedimentation in receiving waterways by avoiding changes in low    (a)   limit the peak 1 year ARI event discharge within the
rate, peak flow run­off and flow duration.                               receiving waterway to the pre­development peak 1 year
                                                                         discharge;
                                                                   (b)   maximise pervious areas by using pervious alternatives for
                                                                         otherwise impervious areas wherever possible;
                                                                   (c)   provide for capture and reuse of stormwater for non­potable
                                                                         purposes for gardening, toilet flushing, laundry and hot
                                                                         water supply uses;
                                                                   (d)   incorporate appropriate detention features; and
                                                                   (e)   incorporate natural channel design principles

                                                                   Editor’s note: The Sustainable Building Design Code includes
                                                                   requirements for stormwater capture and reuse.
PO11                                                               AO11.1
Water sensitive urban design principles are applied to achieve     The design and construction of a natural channel or natural
multifunctional design of waterways, wetlands and drainage lines   channel rehabilitation works are in accordance with the Natural
that provide for:                                                  Channel Design Guidelines (Brisbane City Council) having regard
(a)   stormwater conveyance that uses natural channel design;      to local topography, geology and geomorphology.

(b)   protection of landscape features and ecological important
                                                                   AO11.2
      areas including terrestrial and aquatic habitat;
                                                                   Landscape features, plant species and habitat types used in
(c)   aesthetic and passive recreation values;                     stormwater conveyance channels are complementary to the local
(d)   flood management and conveyance of external catchment        context and natural waterways.
      stormwater through the development;
                                                                   AO11.3
(e)   landscaping that incorporates local native species; and
                                                                   Bank and bed stability and planting densities result in a stable
(f)   bed and bank stability.                                      channel over the long term and minimal potential for pest plant
                                                                   species.

                                                                   AO11.4
                                                                   Water Sensitive Design measures are incorporated into the
                                                                   development, as detailed in the document Water Sensitive
                                                                   Designs small improvements, new ideas, concepts and sketch
                                                                   designs for stormwater filtration systems (Healthy Waterways
                                                                   Water by Design).

                                                                   AO11.5



                                            NOOSA PLAN 2020 ­ AMENDED AT 25 SEPTEMBER 2020                                 Page 117 of 150