Ulladulla Old Wastewater Treatment Plant, New South Wales, Australia

Ulladulla Old is a decommissioned wastewater treatment plant located in Ulladulla, New South Wales, Australia. The plant formerly served a population of approximately 8,791 people in the Shoalhaven City Council area. It is situated near the coast, within 50 km of the Tasman Sea. As a decommissioned facility, the plant no longer operates. During its operational life, it would have been subject to Australian wastewater regulations, which require treatment appropriate to the receiving environment. For coastal plants, secondary treatment is typically mandated to protect marine water quality. The plant's discharge would have entered the local catchment, ultimately draining to the Tasman Sea. The coastal environment supports diverse marine life, including fish, invertebrates, and seabirds. Proper treatment is essential to prevent nutrient pollution and protect coastal ecosystems.

The plant is located near the coast of New South Wales, within the Shoalhaven region. Its treated effluent would have discharged into local waterways that flow into the Tasman Sea. The coastal waters support a range of marine habitats, including rocky reefs and sandy bottoms, which are home to fish, mollusks, and crustaceans. Protecting these waters from excessive nutrients and contaminants is critical for maintaining biodiversity and supporting local fisheries.