Att 2 SWMP

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 entry and           An erosion and sediment control plan prepared in accordance with the International Erosion Control Association Best
transport of litter, sediment, and associated prescribed water contaminants into   Practice Books demonstrates that the capture and release of stormwater achieves the design objectives listed in Table A: To be complied with at detailed design in conjunction with the SWMP.
receiving waters.                                                                  Construction phase – stormwater management design objectives of the State Planning Policy (Appendix 2 ).
Editor's note— Water contaminants are prescribed in the Environmental              Editor’s note— PSP6 Engineering Design Standards - Roads, drainage and earthworks provides guidance on
Protection Act 1994.                                                               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
                                                                                                                                                                                                               To be complied with at detailed design in conjunction with the SWMP.
                                                                                   necessary for access, and safe construction at any one time.

                                                                                   AO14.3
                                                                                   For buildings:
                                                                                      1. upstream runoff is diverted around the construction site;                                                             To be complied with at detailed design in conjunction with the SWMP.
                                                                                      2. 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
                                                                                      3. temporary or permanent downpipes are connected to the stormwater system before laying the roof; or
                                                                                      4. localised erosion is avoided by directing flow from downpipes over non-erosive areas.

                                                                                   AO14.4
                                                                                   Chemical flocculants used as part of an erosion and sediment control plan do not harm the environmental values within
                                                                                                                                                                                                         To be complied with at detailed design in conjunction with the SWMP.
                                                                                   receiving waters.

                                                                                   AO14.5
                                                                                   Appropriately sized litter containment areas, with provision for sorting recyclables are provided for the type of litter
                                                                                                                                                                                                               To be complied with at detailed design in conjunction with the SWMP.
                                                                                   expected to be generated onsite.


Wastewater management and effluent disposal Table 9.4.8.3 Criteria for assessment (part)
                         Performance Outcomes                                                                                        Acceptable Outcomes

Wastewater management and effluent disposal
PO15                                                                               AO15
Development does not discharge wastewater unless it can be
demonstrated to not compromise environmental values of waters and                  Wastewater (non-sewage) generated from the development is collected and contained on-site, and is:
water quality objectives.
Editor’s Note— Environmental values of waters and water quality
objectives are prescribed in Schedule 1 of the Environmental Protection               1. lawfully disposed to sewer; or                                                                                        To be complied with at detailed design.
(Water) Policy 2009.
                                                                                      2. transferred off-site for treatment/disposal to an appropriately licenced facility;
                                                                                      3. reused on-site in a closed-cycle irrigation scheme, industrial processes, washing or cleaning or other purpose; or
                                                                                      4. treated to meet the drinking water supply environmental values prior to release.


                                                                                   Editor’s Note —The Plumbing and Drainage Act 2003 sets out requirements for wastewater management.
PO16                                                                               AO16
On-site effluent treatment and disposal systems are designed, constructed and
managed to not compromise the environmental values of waters and water             An onsite effluent system and disposal area is:                                                                             To be complied with at detailed design.
quality objectives.
                                                                                      1. not located on a slope greater than 1 in (10%);
                                                                                      2. not located at or below the 1% annual exceedance probability (AEP flood event);
                                                                                      3. not located within a riparian buffer area mapped on a Biodiversity, Waterways and Wetlands Overlay Map; and
                                                                                       4. setback 400 metres minimum from the full supply level of Lake Macdonald.
                                                                                   Editor’s Note— The Plumbing and Drainage Act 2003 sets out requirements for on-site effluent treatment and
                                                                                   disposal. The Queensland Plumbing and Wastewater Code and associated guidelines are used to confirm the suitability
                                                                                   of each site to accommodate an on-site sewerage facility; or where a centrally located group collection treatment system
                                                                                   is proposed, confirmation as to the suitability of the designated site to accommodate the on-site sewerage facility.
                                                                                   Additionally, where the combined total peak design capacity of effluent treatment is less than 21 equivalent persons, the
                                                                                   design of the system achieves a low to medium risk classification in accordance with Seqwater’s Land Use Risk Tool for
                                                                                   onsite sewerage facilities.