To ask the Secretary of State for the Environment if he has received any information from the National Rivers Authority concerning the contamination of groundwater at the Blewbury borehole in south Oxfordshire.
§ Mr. Heathcoat-Amory
The National Rivers Authority and Thames Water Utilities have kept the Department informed of recent observations and developments concerning groundwater quality in the Blewbury area of south Oxfordshire. Carbon tetrachloride has been detected in water supplied at about half the concentration prescribed in the Water Supply (Water Quality) Regulations 1989. There is no cause for concern. Work is in hand to ascertain the source of the solvent and any corrective measures required.