§ Mr. Sheerman
asked the Secretary of State for the Environment what steps he is taking to monitor the levels of lead in water.
§ Mr. King
In 1977 the Department published the results of its survey in Great Britain of levels of lead in drinking water. The Department's lead in potable water sub-committee reviewed these results and concluded that there was a need for national sampling guidelines for water authorities and water companies in order that they could monitor lead in water content and identify those water 65W supply zones requiring early and detailed investigation. The Department issued such guidelines in March 1980. Some water authorities and water companies have substantially completed these identification exercises; others are in progress. The results of these exercises are being reported to the Department.