§ Mr. Terry FieldsTo ask the Secretary of State for the Environment if he will list, by quantity per gallon or litre, chemicals and other matter added to domestic water supplies by the North West water authority; what is the purpose of each additive listed; and if he will make a statement.
§ Mr. MoynihanLike all water undertakers, North West water authority adds small quantities of several chemicals to water supplies. These vary according to the quality of the water being treated. I have asked the authority to reply to the hon. Member in more detail.