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Broomfield, Colo., April 27, 2009 – Two MWH projects were honored at the 2009 Global Water Awards, recognizing what senior executives across the international water industry have acknowledged as the most important achievements of 2008.

The Deep Tunnel Sewerage System (Phase 1) Project in Singapore was awarded Water Project of the Year.  The award recognizes the water or wastewater project, comissioned in 2008, that represents the most significant contribution to water technology and environmental protection.  This US$2.5 billion deep tunnel sewer system is designed to address Singapore’s wastewater collection, treatment and disposal needs for the next 100 years.  The project includes a 48km-long deep tunnel, a centralized water reclamation plant, a network of link sewers and a deepsea outfall.  MWH provided design and construction supervision of the outfall.

The project significance is noted as a major step towards ensuring the long-term sustainability of Singapore’s water resources.  The 48km-long North Tunnel was built in six phases with a depth of up to 50 metres using trenchless technology.  The award announcement notes this as a “colassal engineering challenge.”  The Changi Water Reclamation Plant will treat 800,000m3/d of gravity-fed wastewater from the deep tunnel.  Built mainly underground, it occupies less than a third of the area needed for a conventional layout.

The Water Reuse Project of the Year was awarded to the Wester Corridor Recycled Water Project (Phase 2A/2B) in Australia.  This phase includes the Luggage Point and Gibson Island Advanced Water Treatment Plants for the project, which is the largest water recycling scheme in Australia.  The MWH organization was part of the project team for the Gibson Island project.  The project addresses the worst drought on record for Southeast Queensland, and is part of a long-term water resourcing plan.  Both plants use state-of-the-art technologies, and the Gibson Island plant uses innovative design to collect rainwater for treatment.  The award announcement notes: “The importance of this scheme in terms of securing vital water resources for Australia cannot be underestimated.”