South Caboolture Wastewater Treatment Plant, Morayfield, Queensland

South Caboolture wastewater treatment plant is located in Morayfield, Queensland, Australia, within the Greater Brisbane region. The facility serves a population of approximately 76,881 people and has a designed capacity of 1.00 ML/day, indicating it is a medium-to-large agglomeration under Australian regulatory standards. As an operational plant, it is subject to Queensland's environmental regulations and the national Water Quality Management Framework. Plants of this scale in Australia typically employ secondary or tertiary treatment to meet stringent discharge standards, especially given the proximity to sensitive coastal environments. The plant's treated effluent is discharged into the local watershed, which ultimately drains into the Moreton Bay marine ecosystem. Moreton Bay is a vital ecological area supporting diverse marine life, including seagrass meadows and fish nurseries. The plant plays a key role in protecting downstream water quality and the health of the bay.

The plant discharges into the Caboolture River catchment, which flows into Deception Bay and then into Moreton Bay, a large coastal embayment of the Coral Sea. Moreton Bay supports seagrass beds, mangroves, and important fisheries, making it ecologically sensitive to nutrient and pollutant loads. The plant's operations are critical for maintaining water quality in this downstream environment.