I hope that this debate will continue in a spirit of looking to the long-term future of the industry, rather than descending into anything approaching point scoring. I do not think that is worthy of the hon. Member for Dunfermline and West Fife (Thomas Docherty) and I am sure that we will not see such a descent in his contribution, because this issue predates this Government.
As I was explaining, price rises started to increase significantly in the middle of the past decade. The average Thames Water household bill was £254 in 2005-06 and it has now risen to £354. One of my constituents sent me his own list of increases, where he recorded that in 2005-06 his bill increased by a whopping 21% and that since that time his bills have increased by 84%. So we can see why consumers and residents are asking, “Why us? Why do we have to bear the burden?”
I am pleased that Ofwat has issued a preliminary decision to disallow Thames Water’s request to raise prices by £29 for customers’ bills with effect from 2014-15. Thames Water said that it wished to spread that increase over several years but, as Ofwat has said, Thames Water has produced insufficient evidence to justify such a rise. It is unique this year in terms of the other water companies and it is compounded by the prospect of indefinite rises of up to £80 for my residents in order to pay for the £4.1 billion Thames tideway tunnel. I am in no way an opponent of bold and imaginative infrastructure schemes. They represent the best spirit of what inspired the Victorians to create the infrastructure on which, in many ways, we rely today. Buildings such as this place were the result of such boldness. It is right, however, that we should ask the legitimate question about whether dealing with the problems experienced through the discharge of sewage into the River Thames is worth that £4.1 billion.
I have no doubt that there are serious issues with pollution, but air pollution in London affects more people than the issue that the tunnel seeks to address. Other proposals, such as those for sustainable drainage, would be a more incremental way of dealing with the problem than inflicting this large hit on consumers.