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EMSD announces latest sampling results for legionella at fresh water cooling towers
     The Electrical and Mechanical Services Department (EMSD) today (September 6) announced that the department tested 77 water samples collected from cooling towers in 64 buildings in its routine inspections in August this year. One sample was detected to have a total legionella 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 cooling tower in which the one sample was collected in August is located at 49-51 Woosung Street, Yau Ma Tei. The EMSD has issued a nuisance notice under the Public Health and Municipal Services Ordinance to the owner of the cooling tower requiring appropriate disinfection work to be done. Disinfection of the cooling tower in the case has already been completed by the owner. Details of the case can be found in Annex 2. The EMSD publishes the latest statistics of the above information on a half-monthly basis on its website

     The EMSD reminds owners of fresh water cooling towers 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 Fresh Water Cooling Towers issued by the department to prevent the proliferation of legionella.
Ends/Friday, September 6, 2019
Issued at HKT 14:00
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