Some industry links you may find useful

The bacterium that causes Legionnaires' disease is widespread in nature. It mainly lives in water, for example ponds, where it does not usually cause problems. Outbreaks occur from purpose-built water systems where temperatures are warm enough to encourage growth of the bacteria, this can include cooling towers, evaporative condensers, spas, Jacuzzis and from water used for domestic purposes in buildings such as hotels.
To prevent the occurrence of Legionnaires' disease, companies that operate these systems must comply with regulations requiring them to manage, maintain and treat them properly.
The Legionella Control Association - www.conduct.org.uk
The Water Management Society - www.wmsoc.org.uk
British Association for Chemical Specialities - www.bacsnet.org
Health and Safety Executive - www.hse.gov.uk
Chartered Institution of Water and Environmental Management - www.ciwem.org.uk
Drinking Water Inspectorate - www.dwi.gov.uk
Department of the Environment, Transport and Regions - www.environment-agency.gov.uk
Office of the Water Regulator (Ofwat) - www.ofwat.gov.uk
Water Research Centre (WRc) - www.wrcplc.co.uk
Water UK (the water industry trade association) - www.water.org.uk
