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EMSD announces latest sampling results for legionella at fresh water cooling towers
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     The Electrical and Mechanical Services Department (EMSD) today (December 7) announced that the department tested 103 water samples collected from cooling towers in 61 buildings in its routine inspections in November 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 November is located at Block A, Hoi Luen Industrial Centre, 55 Hoi Yuen Road, Kwun Tong. 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 one case has already been completed by the owner. Details of the one 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 (www.emsd.gov.hk/en/other_regulatory_services/cooling_towers/water_sampling/index.html).
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     The EMSD reminds the 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/Tuesday, December 7, 2021
Issued at HKT 11:00
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