HC Deb 30 July 1974 vol 878 c132W
Mr. Spearing

asked the Minister of Agriculture, Fisheries and Food whether he will make arrangements for the retesting of the London flood warning sirens.

Mr. Bishop

The sirens will be sounded at 11.00 hours on Wednesday 11th September. The signal will be six 30-second blasts with 15-second intervals. The effectiveness of the test will be monitored by the Greater London Council in collaboration with the London boroughs.