receiving waters within management process outlined in the BPEM Guidelines. This and downstream of the should be documented in an acceptable SQMP containing proposal. commitments and information in accordance with the above guidelines to achieve the design objectives of Chapter 2. AND Probable Solution PS4.2 All drainage lines, diversion and collection drains and banks, chutes and outlets are able to safely carry peak flow at least in the 10 year ARI time of concentration storm event. AND Probable Solution PS4.3 Release of sediment laden stormwater is avoided for the nominated design storm and minimised when the design storm is exceeded. Compliance with these acceptable solutions can be demonstrated by providing conceptual detail of how stormwater quality will be managed (as part of a SQMP prepared by suitably qualified persons/professionals), including how the design objectives in Chapter 2 will be met (conceptual SQMP). This may be conditioned and may require the submission of a subsequent detailed site SQMP and/or ESCP for construction and operational works prepared by suitably qualified professionals (e.g. with tertiary qualifications in environmental engineering, as well as erosion and sediment control). Protection of Natural Flows Specific Outcome SO5 Probable Solution PS5.1 Stormwater management Development incorporates stormwater flow control measures avoids or minimises to achieve design objectives set out in draft Urban Stormwater impacts from quantity - Queensland Best Practice Environmental Management and flow rates in Guidelines as amended. waterways. Compliance with the flow design objective may be achieved by limiting the post-development peak discharge at the site boundary for the 1year Average Recurrence Interval (ARI) event to a permissible site discharge calculated using the Rational Method (or equivalent) with: 3 hour time of concentration; and Pre-development 1 year ARI runoff coefficient; zero pre-development imperviousness; and vegetation characteristic of the site over last three years. For sites that have been subject to vegetation clearing the pre-clearing vegetation characteristics should be assumed. Part B Development Requirements point source waste water management (other than – contaminated stormwater and sewage)
receiving waters within and downstream of the proposal. management process outlined in the BPEM Guidelines. This should be documented in an acceptable SQMP containing commitments and information in accordance with the above guidelines to achieve the design objectives of Chapter 2. AND Probable Solution PS4.2 All drainage lines, diversion and collection drains and banks, chutes and outlets are able to safely carry peak flow at least in the 10 year ARI time of concentration storm event. AND Probable Solution PS4.3 Release of sediment laden stormwater is avoided for the nominated design storm and minimised when the design storm is exceeded. Compliance with these acceptable solutions can be demonstrated by providing conceptual detail of how stormwater quality will be managed (as part of a SQMP prepared by suitably qualified persons/professionals), including how the design objectives in Chapter 2 will be met (conceptual SQMP). This may be conditioned and may require the submission of a subsequent detailed site SQMP and/or ESCP for construction and operational works prepared by suitably qualified professionals (e.g. with tertiary qualifications in environmental engineering, as well as erosion and sediment control). Protection of Natural Flows Specific Outcome SO5 Stormwater management avoids or minimises impacts from quantity and flow rates in waterways. Probable Solution PS5.1 Development incorporates stormwater flow control measures to achieve design objectives set out in draft Urban Stormwater - Queensland Best Practice Environmental Management Guidelines as amended. Compliance with the flow design objective may be achieved by limiting the post-development peak discharge at the site boundary for the 1year Average Recurrence Interval (ARI) event to a permissible site discharge calculated using the Rational Method (or equivalent) with: 3 hour time of concentration; and Pre-development 1 year ARI runoff coefficient; zero pre-development imperviousness; and vegetation characteristic of the site over last three years. For sites that have been subject to vegetation clearing the pre-clearing vegetation characteristics should be assumed. Part B Development Requirements – point source waste water management (other than contaminated stormwater and sewage)
draft%20SPP%20Healthy%20Waters.docx