Former Amec boss is being touted to take on the role once the water company's takeover by Macquarie Bank is complete

Outgoing Amec chief executive Sir Peter Mason will be appointed to the board of Thames Water as a senior non-executive following its takeover by Macquarie Bank, it is understood.

Mason is thought to have advised the Australia’s Macquarie Bank on its £8bn offer for the utilities company. RWE, the German owners of Thames Water agreed to the sale this week.

Mason stepped down from his role as Amec’s chief executive this month after 10 years in the job. He was replaced by Samir Brikho who joined from energy firm ABB.

Mason has been cagey about his post-Amec plans but it is known that he has taken up a non-executive role at the Olympic Delivery Authority.

Macquarie Bank declined to comment.