HC Deb 17 March 1972 vol 833 c193W
Mr. Dalyell

asked the Secretary of State for the Environment when he expects to publish a complete survey of rivers in relation to pollution.

Mr. Eldon Griffiths

Volume 1 of the Report of the 1970 River Pollution Survey of England and Wales was published in December, 1971. Volume 2, which will complete the report, is expected to be ready early this summer. A supplementary survey is now in progress to bring much of the information up to date as at the beginning of 1972. River authorities have been asked to complete this review by the end of March, and a summary of the results will be published later in the summer.