Appendix D- Stormwater Management Plan · MCU23/0078

Performance Outcomes                                              Acceptable Outcomes
                                                                  Floodplain management is designed in accordance with the
                                                                  Framework for the Integration of Flood and Stormwater
                                                                  Management into Open Space published by Healthy Waterways
                                                                  Water by Design (version current at the time of development
                                                                  application)
PO12                                                              AO12.1
Development protects in­stream ecology by maintaining pre­        Where run­off from or within the site passes through or drains to
development low flow discharge regimes and maintaining fish       natural channels, waterways or wetlands, development protects in­
passages.                                                         steam ecology by maintaining pre­development low flow
                                                                  discharge regimes in accordance with the frequent flow
                                                                  management objectives in PSP6 Engineering Design Standards ­
                                                                  Roads, drainage and earthworks

                                                                  AO12.2
                                                                  Instream structures such as roads, bridges, culverts, and other
                                                                  stormwater infrastructure do not cause barriers to fish passage
                                                                  and facilitate the movement of terrestrial and aquatic fauna along
                                                                  waterway corridors.

                                                                  AO12.3
                                                                  Benthic substrate retains a continuous grade with the direction
                                                                  of flow consistent with the natural bed profile.
PO13                                                              AO13.1
Development is designed and constructed to maintain surface       The location and form of stormwater discharge points do not alter
and ground water balances that sustain the environmental values   the pre­development hydrology of receiving surface water or
of water dependent ecosystems, including downstream aquatic,      groundwater.
riparian, wetland and terrestrial ecosystems.
                                                                  AO13.2
                                                                  Developments located on groundwater recharge or discharge
                                                                  areas are designed and managed in accordance with a
                                                                  groundwater recharge and discharge management plan prepared
                                                                  by a suitably experienced and qualified groundwater hydrologist.
                                                                  The groundwater recharge or discharge must demonstrate that
                                                                  the development does not affect groundwater balances beyond
                                                                  the property boundaries.

                                                                  Editor's Note— PSP6 Engineering Design Standards ­ Roads,
                                                                  drainage and earthworks provides guidance on prepare a
                                                                  groundwater recharge and discharge plan.



Construction and establishment of stormwater management systems                                   Table 9.4.8.3 Criteria for
assessment (part)
Performance Outcomes                                              Acceptable Outcomes
Construction and establishment of stormwater management
systems
PO14                                                              AO14.1
Construction methods provide for appropriate controls to avoid    An erosion and sediment control plan prepared in accordance
entry and transport of litter, sediment, and associated           with the International Erosion Control Association Best Practice
                                                                  Books demonstrates that the capture and release of stormwater
prescribed water contaminants into receiving waters.
                                                                  achieves the design objectives listed in Table A: Construction
                                                                  phase – stormwater management design objectives of the State
Editor's note— Water contaminants are prescribed in the           Planning Policy (Appendix 2).
Environmental Protection Act 1994.
                                                                  Editor’s note— PSP6 Engineering Design Standards ­ Roads,



                                           NOOSA PLAN 2020 ­ AMENDED AT 25 SEPTEMBER 2020                                 Page 118 of 150