Streaky Bay Wastewater Treatment Plant, South Australia | Coastal Secondary Treatment

Streaky Bay wastewater treatment plant is located on Wells Street in Streaky Bay, South Australia, a coastal town on the Eyre Peninsula. The facility serves a small population of around 1,200 people and operates under secondary treatment standards, which is typical for smaller communities in Australia. The plant provides secondary treatment, a process that removes organic matter and suspended solids through biological and physical methods. As a coastal facility within 10 km of the shoreline, it must comply with state and national discharge regulations to protect marine environments. The plant discharges an average of 311.71 megaliters of treated wastewater annually. The treated effluent is released into the local coastal waters of the Great Australian Bight, a large open bay of the Southern Ocean. This area supports diverse marine life, including fish, crustaceans, and seabirds. The plant's operation is critical for maintaining water quality in the nearby marine ecosystem and protecting the recreational and tourism values of Streaky Bay.

The plant discharges into the Great Australian Bight, a vast marine embayment of the Southern Ocean. This coastal environment supports a range of marine species, including southern bluefin tuna and Australian sea lions. The region's nutrient-poor waters are sensitive to nutrient enrichment, making effective wastewater treatment essential for preserving local biodiversity and water quality.