HC Deb 03 July 1989 vol 156 cc53-4W
Mr. Norman Hogg

To ask the Secretary of State for Scotland if he has any plans to give any advice to regional water authorities concerning the addition of orthophosphate to the public water supply; and if he will make a statement.

Lord James Douglas-Hamilton

There are no plans to issue further advice at the present time. Full advice was given to regional and islands authorities in mid-1984. The addition of orthophosphate has achieved considerable reductions in levels of lead in tap water in a number of areas of Scotland. The effectiveness of the treatment is kept under review.