§ Mr. ButlerTo ask the Secretary of State for the Environment if he will give details of the findings for the last time that the water systems of the Houses of Parliament were tested for legionella.
§ Mr. Chope[holding answer 9 February 1989]: The cooling towers for the air conditioning system and the standby generator serving the underground car park are dosed regularly to minimise microbiological contamination, and the water quality is bacteriologically tested every month by an approved specialist contractor. The most recent sample, taken on 9 January 1989, was satisfactory. No separate routine testing is undertaken specifically for legionella alone.