South Lismore Wastewater Treatment Plant | New South Wales, Australia

South Lismore wastewater treatment plant is an operational facility located on Three Chain Road in South Lismore, New South Wales, Australia. It serves a population of approximately 6,754 people, placing it in the small-to-medium agglomeration category. The plant is situated inland, more than 50 km from the coast, and its operations are part of the municipal wastewater infrastructure managed by the Lismore City Council. As a plant serving a population of this scale in Australia, it is expected to meet national wastewater treatment standards under the Australian Water Quality Guidelines. Australian regulations typically require secondary treatment for inland plants to protect receiving water quality. The plant's designed capacity is 1.00 million liters per day, indicating a modest scale appropriate for the community it serves. The treated effluent from South Lismore plant is discharged into the local catchment, which ultimately drains into the Richmond River and then into the Tasman Sea. The Richmond River supports diverse aquatic life and is an important ecological corridor in the region. The plant's operations contribute to protecting downstream water quality and maintaining the health of the riverine ecosystem.

The plant discharges into the Richmond River catchment, which flows into the Tasman Sea. The Richmond River supports a variety of fish and bird species and is an important migratory corridor. The plant's inland location reduces direct marine impact, but its effluent quality is critical for maintaining the ecological health of the river and downstream estuary.