Stapylton Wastewater Treatment Plant, Gold Coast City, Queensland

Stapylton wastewater treatment plant is a new facility currently under construction in the suburb of Stapylton, within Gold Coast City, Queensland, Australia. Designed to serve a population of 17,232, the plant will have a capacity of 1.00 million liters per day, addressing the needs of this growing area. As an Australian plant, it will operate under the national regulatory framework administered by the Queensland Department of Environment and Science, which sets discharge standards under the Environmental Protection Act 1994. For a plant of this scale, secondary treatment is typically required, with potential for nutrient removal to protect sensitive receiving environments. The plant's treated effluent will likely discharge into local waterways that drain to the Logan River or Albert River, eventually reaching Moreton Bay. This bay is an ecologically significant area supporting seagrass beds, mangroves, and diverse marine life, making nutrient management critical for downstream water quality.

The plant is located inland, approximately 50 km from the coast, and its discharge will likely enter the Logan River catchment, which flows into Moreton Bay. Moreton Bay is a large, shallow bay that supports extensive seagrass meadows, mangrove forests, and important fisheries. Nutrient and sediment inputs from upstream sources can impact water clarity and seagrass health, so advanced treatment may be necessary to protect this downstream ecosystem.