Singleton Wastewater Treatment Plant, Glenridding, New South Wales

Singleton wastewater treatment plant is located in Glenridding, within the Singleton Council area of New South Wales, Australia. The facility serves a population of around 17,097, placing it in the medium-agglomeration category for Australian wastewater infrastructure. As an operational plant, it is subject to Australian wastewater regulations, which require secondary treatment as a minimum standard for inland discharges. Typical facilities of this scale employ activated sludge or lagoon systems to meet environmental standards. The plant discharges treated effluent into local waterways, ultimately contributing to the Hunter River catchment. This region supports diverse aquatic life and is important for downstream ecosystems, including wetlands and estuarine habitats near the coast.

The plant's treated effluent flows into the Hunter River catchment, which drains into the Tasman Sea via the Hunter Estuary. This watershed supports a range of aquatic species and provides critical habitat for migratory birds. The inland location reduces direct marine impact, but nutrient management remains important to prevent algal blooms in downstream water bodies.