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Water Hygiene / Legionella ACoP L8 Management

Legionnaires disease occurs as a result of infections caused by the legionellaceae family of bacteria. It is a form of pneumonia which results in around 250 identified cases a year and can prove fatal, especially to the elderly or those prone to respirable problems.

Legionnaires disease is contracted by inhaling small droplets of water suspended in air which contain the legionella bacterium. Legionnaires bacteria occurs naturally in surface water and soils etc but can also proliferate within man made environments such as cooling towers, hot and cold distribution systems, water plant, humidifiers and air washers. Proliferation of the bacteria typically occurs between 20°C – 45°C and is assisted by the presence of suitable nutrients present in Dirt, Sludge and Scale as well as conditions of poor water flow, stagnation or where dead legs occur in water systems.

Employers are required to control the risk of exposure to legionella bacteria in accordance with Control of Substances Hazardous to Health Regulations. This is achieved by following the Approved Code of Practice L8 The Control of Legionella (Bacteria in Water Systems) and subsequent technical guidance HSG 274 Part 1, 2 and 3.

In general these require the employer to conduct the following:

  • Identification & assessment of the risk
  • Prevention or minimisation of risk from exposure to Legionella
  • Systems for the management and selection, training and competence of personnel
  • Record keeping of maintenance, cleaning and disinfection

Three Counties Water staff will work with you and your organisation to ensure the risk from legionella is minimised whether its reviewing and updating risk assessments, conducting routine testing and sampling or advising on appropriate control strategies, you can feel rest assured In choosing Three Counties Water the risk from legionella will be controlled giving you the client ‘Peace of Mind’.

The following are a selection of our recommended training courses

  • On-site “tool-box” training for site-based personnel.
  • Legionella Awareness Training
  • Legionnaires disease and legionella pneumophila control.
  • Application and interpretation of boiler water chemistry.
  • Closed Systems Chemistry, Treatment and on going Monitoring

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