Coonabarabran Wastewater Treatment Plant | Advanced Treatment in New South Wales

The Coonabarabran wastewater treatment plant is located in the Warrumbungle Shire Council area of New South Wales, Australia. It serves the town of Coonabarabran, a rural community with a population of around 3,440. The plant is situated in the Coonabarabran Industrial Estate on Gardener Street. The facility employs advanced treatment processes, ensuring a high level of effluent quality before discharge. With an annual discharge volume of 890.13 megalitres, the plant operates under the regulatory framework of the New South Wales Environment Protection Authority, which sets stringent standards for wastewater treatment and discharge to protect the environment. The treated effluent is released into the local catchment, which ultimately drains into the Castlereagh River system, part of the Murray-Darling Basin. This basin is a vital ecological and agricultural resource, supporting diverse aquatic life and downstream communities. The plant's advanced treatment helps minimize nutrient and pollutant loads, contributing to the health of the river system.

The plant discharges into the Castlereagh River catchment, which flows into the Macquarie River and eventually the Darling River, part of the Murray-Darling Basin. This basin is one of Australia's most important water resources, supporting agriculture, ecosystems, and communities. The region is semi-arid, so maintaining water quality is critical for downstream users and biodiversity, including native fish species and waterbirds.