In any buildings water system where the water is stored either hot or cold in a way which may allow exposure to Legionella bacteria, the person(s) responsible for that building have a statutory duty to protect the health and safety of users.
Water Hygiene Regulations
ACoP L8 guidelines top 3 priorities of responsible persons duties;
1 Identification and assessment of potential sources of risk
2 Preparation of a written scheme for control of potential risks
3 Implement, manage, record and monitor precautionary measures
HSE relevant legal documents
Regulations
(approved by Parliament and have the force of the law)
Control of Substances Hazardous to Health Regulations 1999
Management of Health and Safety at Work Regulations 1999
Reporting of Injuries, Diseases and Dangerous Occurrences Regulations 1995
The Water Supply (Water Quality) Regulations 2000
Water Supply (Water Fittings) Regulations 1999
The Private Water Supplies Regulations 2009
Guidance/Other Literature
BS EN 806 Parts 1, 2 &3
BS EN 1717:2001 Protection against pollution of potable water in water installations
NHS Model Engineering Specification - DO8 (Thermostatic Mixing Valves)
W.H.O Legionella and The Prevention Of Legionellosis
HTM 04-01: The control of Legionella, hygiene, "safe" hot water, cold water and drinking water systems
Swimming pool water: Treatment and quality standards - Pool Water Treatment Advisory Group
The Institute of Plumbing: Plumbing engineering services design guide
Hygiene for spa pools - Public Health Laboratory Service