OPW052025 Report - Part 2

Construction and establishment of stormwater management systems                                 Table 9.4.8.3 Criteria for assessment (part)


Performance Outcomes                                             Acceptable Outcomes                                                                           Response
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         The proposed driveway is to be placed at the location of the
                                                                 with the International Erosion Control Association Best Practice    existing driveway for the allotment and best practice
entry and transport of litter, sediment, and associated
                                                                 Books demonstrates that the capture and release of stormwater       construction methods for civil works will be implemented.
prescribed water contaminants into receiving waters.
                                                                 achieves the design objectives listed in Table A: Construction      PO14 and acceptable outcomes AO14.1, AO14.2, AO14.3
                                                                 phase – stormwater management design objectives of the State        can be achieved.
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,
                                                                 drainage and earthworks provides guidance on requirements for
                                                                 preparing an Erosion Management Plan.

                                                                 AO14.2
                                                                 Construction works are designed and managed to restrict the
                                                                 extent of clearing and soil exposure to the minimum necessary for
                                                                 access, and safe construction at any one time.

                                                                 AO14.3
                                                                 For buildings:
                                                                 (a)   upstream runoff is diverted around the construction site;
                                                                 (b)   sediment barriers are provided downslope of disturbed
                                                                       areas to prevent sediment washing into gutters, drains and
                                                                       waterways , wetlands or drainage lines either on or off the
                                                                       site; and
                                                                 (c)   temporary or permanent downpipes are connected to the
                                                                       stormwater system before laying the roof; or
                                                                 (d)   localised erosion is avoided by directing flow from
                                                                       downpipes over non-erosive areas.