Coolamon Wastewater Treatment Plant, New South Wales | Secondary Treatment for Small Community

Coolamon wastewater treatment plant is located in the town of Coolamon, New South Wales, Australia. It serves a small population of approximately 1,965 residents and operates under secondary treatment, which is typical for inland communities of this scale. The plant is part of the municipal infrastructure managed by the Coolamon Shire Council. As a secondary treatment facility, Coolamon meets the standard requirements for organic matter and suspended solids removal before discharge. The plant processes an annual wastewater volume of 508.51 ML, reflecting the modest demand of the local community. Regulatory oversight falls under the New South Wales Environment Protection Authority, which issues environment protection licences for such facilities. The treated effluent is discharged into the local environment, ultimately contributing to the Murrumbidgee River catchment. This river system flows into the Murray River and eventually reaches the Southern Ocean. The plant plays a key role in protecting downstream water quality and aquatic ecosystems in the Murrumbidgee basin.

Coolamon lies within the Murrumbidgee River catchment, a major tributary of the Murray-Darling Basin. The treated wastewater from the plant enters local waterways that drain into the Murrumbidgee River, supporting downstream ecosystems including wetlands and riverine habitats. The region's semi-arid climate makes water quality management critical for maintaining ecological balance and agricultural water supply.