Hot and Cold Water Monitoring

Water system monitoring

Waterman Environmental Services can help you to ensure your water systems are safe, clean and fully compliant with all current legislation. The HSE’s guidance on controlling legionella includes a requirement to routinely check the temperature of all hot and cold water services.

We can provide a comprehensive range of services for water hygiene maintenance, inspection and monitoring to HSE requirements /HSG274 , including routine temperature monitoring.

Routine temperature monitoring

Hot and cold water systems are those that supply for domestic purposes (drinking, cooking, food preparation, personal hygiene and washing).

Water systems in high risk locations such as (healthcare premises, care homes, residential homes and other situations where those exposed to the water systems are likely to be at high risk of infection) need particular attention.

HSE Approved Code of Practice (ACoP) and Guidance, L8 HSG274 “Legionnaires’ Disease, The control of Legionella bacteria in water systems” asks for a written scheme for controlling the risk from exposure. This should be implemented and properly managed so that all water services are routinely checked for correct temperature, water demand and inspected for cleanliness and use.

Temperature control is the traditional strategy for reducing the risk of Legionella in water systems.

Cold water – Cold water should be maintained, where possible, at a temperature below 20°C.

Hot water – Hot water should be stored at least 60°C and distributed so that it reaches a temperature of 50°C (55°C in healthcare premises) within one minute at the outlets.

Risk of Scalding

For most people, the risk of scalding at this temperature is low. However the risk assessment should take account of susceptible ‘at risk’ people including young children, people who are disabled or elderly and to those with sensory loss for whom the risk is greater. In areas of potential scalding, TMV’s be considered.