Hopetoun Wastewater Treatment Plant, Western Australia - Coastal Secondary Treatment

Hopetoun wastewater treatment plant is located on Steeredale Road in Hopetoun, Western Australia, within the Shire of Ravensthorpe. The plant serves a population of 872 and is currently under construction, with secondary treatment as its designated treatment level. It discharges approximately 225.67 megalitres of treated wastewater annually. The plant operates under Australian wastewater regulations, which require secondary treatment for coastal discharges to protect marine environments. As a small agglomeration, it is subject to state-level environmental protection standards enforced by the Western Australian Department of Water and Environmental Regulation. The treated effluent is discharged into the Southern Ocean via local drainage. The area supports diverse marine life and is part of the broader coastal ecosystem of the Great Australian Bight. The plant's coastal location necessitates careful management to minimize impacts on nearshore water quality and marine habitats.

The plant discharges into the Southern Ocean near Hopetoun, a coastal town in Western Australia. The receiving waters are part of the Great Australian Bight, a large open bay known for its rich marine biodiversity, including whale migration routes and important fisheries. The plant's secondary treatment helps reduce nutrient and pathogen loads before discharge, supporting the health of this sensitive coastal environment.