§ Mr. Andrew F. Bennettasked the Secretary of State for the Environment what proportion of dwellings in England and Wales and in each district of Greater Manchester still have lead water pipes; what steps are being taken to encourage their replacement; and what estimate of the amount of lead found in human blood can be attributed to lead pipes.
§ Mr. Denis HowellAs this is a very complex question I will write to my hon. Friend as soon as I can.