Werris Creek Wastewater Treatment Plant, New South Wales, Australia

Werris Creek wastewater treatment plant is located on Silo Road in Werris Creek, New South Wales, Australia, within the Liverpool Plains Shire Council area. The plant serves a small population of 1,757 residents and operates under secondary treatment standards. As a secondary treatment facility, the plant meets the regulatory requirements for inland wastewater treatment in Australia, which typically involve biological processes to reduce organic matter and suspended solids. The plant's discharge volume of 454.54 megalitres per year reflects the scale of the community it serves. The treated effluent is discharged into local waterways that ultimately drain into the Namoi River catchment, part of the Murray-Darling Basin. This basin supports diverse aquatic ecosystems and is a critical water resource for agriculture and communities in southeastern Australia.

The plant discharges into the Namoi River catchment, which flows into the Barwon River and then the Darling River, part of the Murray-Darling Basin. This basin is ecologically significant, supporting a range of native fish species and waterbirds. The region's semi-arid climate means water quality management is crucial for downstream agricultural and environmental uses.