Overview
Melton wastewater treatment plant serves approximately 47,470 people in Melbourne's western suburbs, Victoria, Australia. The plant is operational and discharges treated effluent into the local catchment within the Port Phillip Bay watershed.
Melton wastewater treatment plant is located in Mount Cottrell, within the City of Melton, approximately 30 km west of Melbourne's central business district. The plant serves a population of around 47,470, making it a medium-sized facility supporting the growing residential and industrial areas of Melbourne's western corridor. As an operational plant in Victoria, it is regulated under the Environment Protection Act 2017 and the State Environment Protection Policy (Waters). Plants of this scale in Victoria typically employ secondary treatment with nutrient removal to meet strict discharge standards for the sensitive Port Phillip Bay catchment. The treated effluent from the plant ultimately drains into the Werribee River system and flows into Port Phillip Bay, a large marine embayment that supports diverse aquatic life and is a key recreational and ecological resource for the region. The plant plays a critical role in protecting water quality in this downstream environment.
Environmental context
The plant discharges into the Werribee River catchment, which flows into Port Phillip Bay, a semi-enclosed marine embayment with limited tidal exchange. The bay supports seagrass beds, fish nurseries, and migratory bird populations. Nutrient loading from wastewater is a key management concern, and the plant's operations are critical to maintaining the ecological health of this urbanized coastal system.
Frequently asked questions
The Melton wastewater treatment plant is located in Mount Cottrell, within the City of Melton, approximately 30 km west of Melbourne's central business district in Victoria, Australia.
The plant serves approximately 47,470 people, supporting residential and industrial areas in Melbourne's western suburbs.
The treated effluent from the plant drains into the Werribee River catchment, which ultimately flows into Port Phillip Bay, a large marine embayment near Melbourne.
The plant operates under Victoria's Environment Protection Act 2017 and the State Environment Protection Policy (Waters), which set discharge limits to protect the Port Phillip Bay catchment.
Plants of this scale in Victoria typically employ secondary treatment with nutrient removal to meet strict water quality standards for sensitive receiving waters like Port Phillip Bay.
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