To ask the Secretary of State for Wales, further to his answer of 20 January, Official Report, columns 77–79, on what basis of previous experience of providing supplementary land drainage in built-up residential areas he has approved the remedial drainage measures envisaged by the development corporation.

My acceptance in principle of the concept of remedial drainage measures was based on the professional advice of Mr. Roy Stoner, director of the Institute of Irrigation Studies at Southampton university, Hydrotechnica Ltd. and Cardiff Bay development corporation.