My Lords, I support Amendment 372ZA in the name of the noble Viscount, Lord Trenchard, to which I have added my name. The noble Viscount has introduced his amendment and covered the subject fully, and I agree with all his comments.
Many in this Chamber will remember during the passage of the Agriculture and Environment Acts the debates on the importance of chalk streams, so ably led by my late noble friend Lord Chidgey. If he were here, he would certainly be taking part today. No doubt he is looking down from above on our deliberations today and wishing us well.
Chalk streams are a vital environmental resource and should be protected. Those noble Lords who watched David Attenborough on the “Wild Isles” television programme recently will know that 85%—I hope I have remembered that correctly—of the world’s chalk streams are in the UK. That does not mean that, because we have plenty, we can ignore them; quite the opposite. It means we must preserve them at all costs.
A year ago, my husband and I moved from our beloved Somerset to Hampshire, partly to be nearer our family. I have discovered, for the first time, the beauty and tranquillity of the county’s chalk streams—the crystal-clear water, the soft babbling sound of the water running over the riverbed and, often, the bright green watercress growing on the edge of the water and the riverbanks.
However, this idyllic description is not the sight that meets the eye in all parts of the country. Many chalk streams suffer from pollution, as the noble Viscount has said, making the waters discoloured and smelly. There have been numerous questions and debates about the effects of foul-smelling sewage discharging into our waterways. Many chalk streams suffer abstraction on a grand scale and the flow of the river is diminished as a result. As we all know, it is often the rate of flow of a stream that helps to keep its waters clear.
While there is currently a chalk river priority habitat in place which recognises their international rarity and biodiversity, this is not protecting them from sewage discharges. However, the chalk stream strategy also has an important part to play. Today’s announcement by the water companies that they plan to tackle the problem of sewage overflows by 2030 through massive investment in sewer upgrades is to be welcomed, but I fear it may be a little while before this is effective in protecting our precious chalk streams, especially from future development pressures.
Clause 138(c)(e) is the ideal place for this amendment to be added to achieve the desired result we are all looking for. I am extremely grateful to the noble Viscount for raising this vital issue and I hope the Minister will be able to accept this amendment. All speakers have strongly supported this amendment and I agree completely with the comments made by the noble Lord, Lord Deben. Chalk streams are an invaluable asset and must be protected and preserved, so that future generations of children and adults can enjoy them to the full.