Emma Hardy

I will move on to talk a little bit about run-off and other issues involved. I join the hon. Member for Harpenden and Berkhamsted in praising her local community groups and organisations. One of the pleasures I have had since taking on this brief is meeting many committed environmentalists, environmental non-governmental organisations and people who care so much about the area. I liked the tale of people going picnicking by the edge of her chalk stream; I am tempted now to go and visit it when I am next on holiday. However, she is also right to point out that England’s chalk streams face pressure on their water quality, with pollution coming from different point sources—especially from sewage treatment works, as she discovered on that Friday evening—and diffuse sources such as phosphorus and road run-off mean that chalk streams suffer from higher levels of nutrients, sediment and toxic chemicals such as pesticides. I will go on to explain some of the actions that the Government are taking with regard to addressing those concerns. However, as has been mentioned by the hon. Member for Newbury (Mr Dillon), it is not water quality alone that affects the chalk streams flowing in the constituency of the hon. Member for Harpenden and Berkhamsted, as they face pressures affecting the quantity and physical habitat quality too. On the quantity, we have seen excessive removal of water from its original source, which can lower the natural river flow of these streams.