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20 October 2014

Mott MacDonald appointed on NZ$63 million Rosedale wastewater plant expansion, New Zealand

Mott MacDonald has been appointed by Watercare Services to design the NZ$63 million expansion of Rosedale wastewater treatment plant in Auckland, New Zealand. The project is one of a series being developed to cater for the anticipated population growth on Auckland’s North Shore.

Watercare is the local government-owned organisation that owns and operates Auckland’s water and wastewater infrastructure. The expansion of Rosedale includes a new 3km pipeline and pump station, an additional primary sedimentation tank, digester and feed tank system and a modified Ludzack Ettinger reactor to treat wastewater. A visitor centre and administration complex will also be constructed to provide an increased level of service.

Steve Couper, Mott MacDonald’s water practice leader for Australasia, said: “Mott MacDonald has provided professional and monitoring services to Watercare on many of its water and wastewater treatment plants and pipelines. We have an excellent track record based on our specialist process, civil and mechanical technical expertise.”

“We are also part of the team looking at option development and concept design for a major combined interceptor from Auckland’s outer western catchment direct to the Rosedale plant, known as the Northern Interceptor project,” Steve added.

Mott MacDonald acquired AWT, a specialist water technology and consulting company based in New Zealand and Australia in April 2014. The acquisition was a key part of the consultancy’s business strategy to broaden the services it offers in the Australasia region.  

The Rosedale expansion is due to be completed in 2019.

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