Legionella Risk Assessment Survey

Engineered water systems carry a risk of legionella which can be fatal. Here’s how we tested the water at the University of Southampton to ensure it was safe:


A Legionella risk assessment survey is an examination of the potential risks presented by engineered water systems, and seeks to identify and prevent the risks of exposure to Legionella bacteria from work activities and water systems.

We visited the university premises before they were open to the students in order to avoid any disruption.

We carried out the legionella risk assessment by taking Legionella and TVC samples, as well as temperature measurements to have a better understanding of the water quality.  TVC analysis is required to simulate the potential threat the water could pose if ingested.

On completion of the analysis, the results were interpreted and the relevant advice was given to the Facilities Manager.



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