McConnell Dowell was selected as a sub-alliance partner for Water Corporation's 45 GL/year Perth seawater desalination plant. The plant is one of the largest desalination plant in the southern hemisphere and provides 17% of Perth's water supply

MacDow's responsibility as a sub-alliance partner involved all the mechanical, structural and piping works. This included the installation of mechanical equipment including the reverse osmosis filters and pumps, and the installation of over 23,000 m of GRP and SAF piping.  The piping work ranged in sizes up to 1200 mm in diameter.

As part of the alliance team, McConnell Dowell developed modularised approaches to many of the pipe-racks and other structural elements to reduce on site work and improve the quality of the finished product.

The MacDow team worked closely with the MDJV environmental team to ensure all onsite works complied with the requirements of the overall environmental management plan on site. MacDow completed its contract with zero environmental issues and an excellent safety record.