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      Mundaring DWTP

      The ACCIONA Agua JV is the delivery contractor for the project and is responsible for the design, construction, operation and maintenance of the A$300M water treatment plant.

      The original G&AWS scheme was developed in 1895 when C. Y. O'Connor engineered a scheme to deliver 23 MLD of untreated water to the Goldfields region through the construction of the Mundaring Weir, 530 kilometres of 30” pipeline, and delivered using eight steam-driven pumping stations. Since then this water system has been progressively upgraded, the new Mundaring Water Treatment Plant and pumping stations being the latest of these improvements to be implemented.

      The potable water network spans from Mundaring Weir in the Perth Hills to Kalgoorlie and considered to be the longest fresh water supply scheme in the world. It consists of approximately 9600km of water mains and services a diverse range of more than 100,000 customers (domestic to industrial scale uses).

      General information

      Client
      Water Corporation
      Type of contract
      Design, build and operate
      Contract award
      February 2009
      Location
      Mundaring, Western Australia
      Technology
      Dissolved Air Flotation Filtration (DAFF) and Biological Activated Carbon (BAC), Chloramination
      Maximum capacity
      165 ML/d expandable to 240 ML/d
      Facilities
      Water treatment plant, pumping station and integration works
      Project term
      Design and Construct (EPC): 2 years
      Operation and Maintenance: 35 years 
      Capital cost
      AU$300 million
      Operations
      Acciona Trility Joint Venture Pty Ltd, a company owned equally by ACCIONA Agua and Trility Pty Ltd will jointly operate and maintain the facility for 35 years

      Key Features

      The ACCIONA Agua JV is the delivery contractor for the project and is responsible for the design, construction, operation and maintenance of the A$300M water treatment plant.

        • 24 months delivery period, employing 450 people.
        • 35 Subcontractors.
        • 54 Suppliers.
        • 49 Project Managers.
        • Provide Business Systems (AS/NZS/ISO 9001; 4801; 14000).

      Awards

      • 2012 Infrastructure Partnerships Australia, Government Partnership National Infrastructure Excellence Award

      • 2012 Global Water Intelligence, Water Deal of the Year

      • 2011 Project Finance Magazine, Asia-Pacific Water Deal of the Year

      Image Gallery

      • Mundaring 4
      • Mundaring 5
      • Mundaring 3
      • Mundaring 1
      • Mundaring 2
      • Mundaring 6
      • Mundaring 8
      • Mundaring 9
      • Mundaring 7

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