§ Mr. ButlerTo ask the Secretary of State for the Environment whether, pursuant to his answer of 21 February,Official Report, column 582, specific tests for legionella have ever been undertaken in the air conditioning system and standby generator serving the underground cm park of the House; and if he will construct a table showing the numerical result of the last bacteriological count undertaken.
§ Mr. ChopeNo specific tests for legionella have been necessary following the regular bacteriological sampling counts.
The results of the last count, taken on 16 February 1989, are shown in the table.
Microbiological services report (Standard analyses) Sample details K Plant Tower (air conditioning system) Emergency generator (underground carpark) Aerobic Bacteria Klebsiella spp (Highly significant potential slime former in industrial systems) Bacillus spp (Spore and potential slime formers) Other potential slime formers (Enterobacteria, Pseudomonads, Flavobacteria etc) <102 <102 Other Aerobic bacteria <102 <102 Total Aerobic bacteria <102 <102 Anaerobic Bacteria Dissimilatory Sulphate-reducers (Principally Desulfovibrio but includes other corrosive SRSs) Not detected Not detected Total Anaerobic bacteria (Includes Clostridia, facultative anaerobes and aerotolerant strains) Microfungi Mould-like forms (Significant as potential slime formers) Not detected Not detected Yeast-like forms (Unicellular microfungi, less significant as slime formers) Not detected Not detected Total Microfungi Not detected Not detected