What are the specific requirements for stormwater management plans in new residential developments in Brisbane?

Brisbane's stormwater management plans for new residential developments must meticulously adhere to the Brisbane City Plan 2014, particularly its overlays and relevant infrastructure codes, ensuring compliance with Queensland's State Planning Policy regarding flood resilience and water quality objectives. These plans specifically require the implementation of Water Sensitive Urban Design principles, including on-site detention to manage peak flows to pre-development levels, and bio-retention systems or similar treatments to achieve stipulated pollutant reduction targets for total suspended solids, nitrogen, and phosphorus, coupled with robust erosion and sediment control during construction and a long-term maintenance strategy.