Murwillumbah Wastewater Treatment Plant, New South Wales, Australia

Murwillumbah wastewater treatment plant is located in the town of Murwillumbah, New South Wales, Australia, within the Tweed Shire Council area. The facility serves a population of around 10,837 residents, classifying it as a medium-sized municipal plant. It is situated inland, approximately 50 km from the coast, and treats wastewater from the local community. As an Australian plant, it operates under the regulatory framework of the New South Wales Environment Protection Authority (EPA) and the national water quality guidelines. For a plant serving this population size, secondary treatment is typically required to meet environmental standards. The designed capacity is 1.00 million litres per day, indicating the plant's scale. The treated effluent is discharged into the local catchment, which ultimately drains to the Tweed River and then into the Pacific Ocean. The plant plays a key role in protecting the water quality of the Tweed River, which supports diverse aquatic life and is used for recreation and irrigation downstream.

The plant discharges into the Tweed River catchment, which flows eastward to the Pacific Ocean near the border of New South Wales and Queensland. The Tweed River estuary supports diverse aquatic habitats, including mangroves and seagrass beds, and is an important area for fish and bird species. Protecting water quality in this system is critical for maintaining ecological health and recreational uses.