HC Deb 27 February 2003 vol 400 c669W
Norman Baker

To ask the Secretary of State for Environment, Food and Rural Affairs what(a) percentage and (b) gross volume of water intended for drinking purposes was tested for (i) mineral content and (ii) chemical content in the last year for which figures are available, broken down by water company supplier. [99244]

Mr. Morley

All public water supplies are tested for the most important minerals, namely calcium and magnesium and for 34 other chemicals or group of chemicals. All of the results are required to be put on public records by water companies, and a summary is published in the Annual Report of the Drinking Water Inspectorate.