West Werribee Sewer Pump Station has undergone a $12 million upgrade to boost service capacity to meet predicted growth in the area.

The project involved constructing a new pump station in a new location away from residential development, installing a new sewer line under the Princes Freeway to divert sewage from the existing site to the new site, and decommissioning the existing pumping station. 

Development of the area has led to the existing pump station being close to residential development and no longer having the capacity to cater for the area’s expanding population growth. 

The new pump station can pump up to 650 litres per second, compared to the existing pump station’s 450 litres per second, and will be further expanded to 1,200 litres per second in the future. 

City West Water’s General Manager of Infrastructure and Delivery, Amanda Smith, said the upgrade would help supply essential sewerage services to the rapidly growing Werribee population.  

“The new pumping station is City West Water’s third-largest sewerage pump station and secures reliable and vital sewerage services for those living and working in Werribee,” Ms Smith said. 

“The pump station can now service an additional 60,000 new dwellings which is a crucial upgrade, especially with the nearby development, Riverwalk Estate. 

“The upgraded infrastructure will support a growing population and allows the area to grow now and into the future.” 

The new pump station receives sewage from local properties which is transferred to Melbourne Water’s Western Trunk Sewer before ending up at the Western Treatment Plant in Werribee. 

The new pumping station has been relocated away from the new residential dwellings to reduce potential noise, odour and disruption during maintenance activities.  

City West Water partnered with head contractor, Quinn Civil, to undertake the works. 

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