Darlington Point Wastewater Treatment Plant | New South Wales, Australia

Darlington Point wastewater treatment plant is located in the small town of Darlington Point, within the Murrumbidgee Council area of New South Wales, Australia. The plant serves a population of approximately 1,255 residents, reflecting its role in a rural community. As a secondary treatment facility, it provides biological treatment to reduce organic pollutants and suspended solids before discharge. The plant operates under Australia's national water quality management framework, which includes state-level regulations administered by the New South Wales Environment Protection Authority. For small agglomerations like Darlington Point, secondary treatment is the standard requirement to protect receiving water bodies. The plant's annual discharge volume of 324.71 megaliters indicates a consistent flow from the community's wastewater system. The treated effluent is released into the local watershed, which ultimately drains into the Murrumbidgee River, a major tributary of the Murray-Darling Basin. This basin is Australia's largest river system and supports extensive agricultural activity, diverse aquatic ecosystems, and several Ramsar-listed wetlands. The plant's discharge contributes to the river's flow, making effective treatment essential for downstream water quality and ecological health.

The plant discharges into the Murrumbidgee River catchment, part of the Murray-Darling Basin, Australia's largest and most ecologically significant river system. The basin supports a variety of habitats, including floodplain wetlands and billabongs, which are critical for waterbirds and native fish species. Downstream, the Murrumbidgee joins the Murray River, which flows to the Southern Ocean via the Coorong lagoon and Murray Mouth. The region's semi-arid climate means river flows are highly variable, and treated wastewater provides a consistent base flow that supports aquatic life during dry periods.