Sewage Pollution

As my right hon. Friend knows, the River Wye is a priceless national asset, threatened by phosphate pollution. He also knows that the Wye is unusual because it crosses the border between Wales and England and the majority of its phosphate does not come from sewage companies, and therefore it will not be as affected as other rivers by the thoroughly laudable measures that my right hon. Friend has taken. Will he make a note to his successor, if there is one, and to his officials now in the Box, that the next administration of DEFRA, if there is one, should take the matter up with great energy and authority, and press the cross-border issue, for the betterment of the Wye, the whole catchment and this country as a whole?