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Subiaco WWTP

Client Water Corporation of Western Australia Location Subiaco, WA

RCR was contracted by the WA Water Corporation to deliver design, construction, integration, testing and commissioning of the 67 Mega Litres per Day (MLD) upgrade to the Subiaco Wastewater Treatment Plant (WWTP).


Subiaco WWTP is one of the largest in Western Australia, handling an average daily dry-weather flow of 63 Mega Litres.

RCR’s scope includes a new inlet works and primary settling tank distribution chamber; upgrading the capacity and improving efficiency of the existing plant; installation of modulating valves and flow meters for improved distribution; and electrical installation, including an upgrade to the plant SCADA system.