Harden Wastewater Treatment Plant, Murrumburrah, New South Wales

Harden wastewater treatment plant is located in Murrumburrah, within the Hilltops Council area of New South Wales, Australia. It serves a population of approximately 2,377 people, operating as a secondary treatment facility to manage municipal wastewater from the local community. As a secondary treatment plant, it employs biological processes to reduce organic matter and suspended solids, meeting typical Australian standards for inland wastewater treatment. The plant discharges an average volume of 615 ML per year, reflecting its scale for a small agglomeration. The treated effluent from Harden plant is released into the local environment, contributing to the health of the Murrumbidgee River catchment. This region supports agricultural activities and diverse ecosystems, making effective wastewater treatment essential for protecting downstream water quality and aquatic life.

The plant discharges into the Murrumbidgee River catchment, which flows into the Murray River system and ultimately reaches the Southern Ocean. This watershed supports irrigated agriculture and native habitats, including wetlands that provide breeding grounds for waterbirds. Effective secondary treatment helps maintain water quality in this ecologically sensitive inland basin.