Business Owners reminded of the risk of Legionella in vacant properties

April 28, 2020

The council’s Environmental Health Service would like to remind business owners in the Lisburn Castlereagh area about the increased risk of Legionella developing in vacant properties where water can stagnate within water systems. 

With many businesses now closed or operating remotely because of the response to the Covid-19 pandemic, there is an increased risk of legionella in water systems.  This advice is particularly pertinent to work places that have hot and cold water systems such as sports and leisure businesses, hotels, campsites etc. and to premises that have swimming & spa facilities.

Business owners should ensure they continue to implement a suitable flushing regime, which would on at least a weekly basis maintain a degree of water flow and minimise the chances of stagnation. 

Alternatively, if the property is to remain vacant for a considerable time, it may be worth considering draining the system.

Water quality in other systems such as spa pools etc. should be managed and you will need to decide whether to maintain or shut down these systems.  Managing risks during non-occupancy will also involve reviewing your risk assessments and maintenance arrangements. 

For further advice on managing the Legionella risk during non-occupancy, please contact the Environmental Health Service Health and Safety Section on 028 9244 7300 or email ehealth@lisburncastlereagh.gov.uk or click on the following links: 

ESGLI Guidance on Legionella in Building Water Systems During Covid-19

Pool Water Treatment Advisory Group guidance on Temporary Pool Closure