Overview
Gnarabup Wastewater Treatment Plant in Western Australia serves 1,075 people with secondary treatment. It discharges treated effluent near the coast, supporting local environmental protection.
Gnarabup Wastewater Treatment Plant is located in the coastal town of Gnarabup, Western Australia, within the Shire of Augusta Margaret River. The plant serves a small population of 1,075 residents, providing essential wastewater management for this seaside community. The facility operates at secondary treatment level, which is appropriate for its scale. Under Australian regulatory frameworks, such plants are typically managed by state environmental authorities to ensure compliance with discharge standards. The plant processes an average daily flow of 278.10 kiloliters. Treated effluent is discharged into the local environment, which ultimately drains to the Southern Ocean. The plant plays a key role in protecting the region's coastal waters and the ecologically sensitive Margaret River area, supporting marine biodiversity and recreational water quality.
Environmental context
The plant discharges into the coastal waters of the Southern Ocean near Gnarabup. This region is part of the Margaret River catchment, known for its diverse aquatic ecosystems and important migratory corridors for marine species. The secondary treatment helps reduce nutrient and pathogen loads, safeguarding nearshore habitats and recreational beaches.
Frequently asked questions
The plant is located on Gas Bay Road in Gnarabup, Western Australia, within the Shire of Augusta Margaret River.
The plant serves approximately 1,075 residents in the Gnarabup area.
The plant treats wastewater to secondary level and discharges the effluent into the local coastal environment, which flows to the Southern Ocean.
The plant operates under Australian state and federal environmental regulations, including the Western Australian Environmental Protection Act, which sets discharge standards for coastal wastewater treatment plants.
For small coastal communities, secondary treatment is standard to reduce organic matter and pathogens before discharge, in line with national guidelines for marine outfalls.
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