EMSD announces latest sampling results for Legionella bacteria at fresh water cooling towers

     The Electrical and Mechanical Services Department (EMSD) today (April 13) announced that the department tested 101 water samples collected from cooling towers in 72 buildings in its routine inspections in March this year. None of them was detected to have a Legionella bacteria count at or above the upper threshold, which is 1 000 colony-forming units per millilitre. The latest statistics are set out in Annex 1.

     The EMSD also announced the locations of buildings which were served with nuisance notices during the preceding three-month period as the Legionella bacteria count was found in the fresh water cooling towers to be equal to or above the upper threshold. Details can be found in Annex 2. The EMSD publishes the latest statistics of the above information on a half-monthly basis on its website (www.emsd.gov.hk/emsd/eng/pps/oa_ct_stat.shtml).

     The EMSD reminds fresh water cooling tower owners that they have the responsibility to design, operate and maintain cooling towers properly. They should arrange regular inspections, timely maintenance and periodic testing of the water quality in their cooling towers in accordance with the Code of Practice for Water-cooled Air Conditioning Systems issued by the department to prevent the proliferation of Legionella bacteria.

Ends/Monday, April 13, 2015
Issued at HKT 14:40