Mareeba Wastewater Treatment Plant, Queensland | Australia

Mareeba wastewater treatment plant is located on Hickling Avenue in Mareeba, Queensland, Australia. It serves a population of around 10,581 people in the Mareeba Shire area. The facility is operational and plays a key role in managing municipal wastewater for this inland community. The plant has a designed capacity of 1.00 million liters per day. As an Australian facility, it operates under the national regulatory framework administered by the Queensland Department of Environment and Science, which sets discharge standards and monitoring requirements. Treatment processes typically include primary and secondary treatment stages to meet environmental guidelines. The treated effluent is discharged into local waterways that ultimately flow into the Barron River system and then to the Coral Sea. The plant helps protect downstream ecosystems, including the Great Barrier Reef catchment area, by reducing nutrient and pollutant loads entering sensitive marine environments.

The plant discharges into the Barron River catchment, which flows into the Coral Sea near Cairns. This region is ecologically significant as part of the Great Barrier Reef catchment, where nutrient and sediment management is critical to protect coral reef ecosystems and seagrass habitats. The plant's operations contribute to maintaining water quality in downstream freshwater and marine environments.