Brewarrina Wastewater Treatment Plant - New South Wales, Australia

Brewarrina wastewater treatment plant is located on the Kamilaroi Highway in Brewarrina, New South Wales, Australia. It serves a small community of approximately 1,003 people and operates under secondary treatment standards. The plant is managed as part of the municipal wastewater infrastructure for the Brewarrina Shire Council area. As a secondary treatment facility, the plant provides biological treatment to reduce organic matter and suspended solids. The plant's discharge volume is recorded at 259.52 megalitres per year. Australian wastewater treatment plants are regulated under state and national guidelines, including the National Water Quality Management Strategy, which sets standards for effluent quality to protect receiving environments. The plant's treated effluent is discharged into the local watershed, which ultimately drains into the Barwon River, a key tributary of the Darling River system. This river network supports diverse aquatic life and is ecologically significant as part of the Murray-Darling Basin, one of Australia's most important river systems. The plant's operations contribute to protecting downstream water quality in this semi-arid region.

The plant discharges into the Barwon River catchment, which flows into the Darling River and eventually the Murray River, reaching the Southern Ocean. This river system supports a range of native fish species, including Murray cod and golden perch, and provides critical habitat for waterbirds. The region's semi-arid climate means water quality management is vital for maintaining ecological health in this drought-prone area.