§ Mr. Gordon PrenticeTo ask the Secretary of State for the Environment how many aquifers currently supplying wholesome water have been sterilised following industrial or agricultural pollution or as a result of a traffic or railway accident in the last 30 years. [10633]
§ Mr. Clappison:This information is not held centrally. However, relevant National Rivers Authority monitoring data are recorded on public registers in each of the authority's regions.