Slide 2:
Risk Assessment Process Involves
1. Temperature – Legionella require a range of between 20 – 50oC to multiply
2. Nutrients – much like any other living organism the bacteria need a source of food. In a water system this takes the form of sludge, scale, rust and even other bacteria
3. Aerosol Creation – an assessment of the type of water services present to judge the likelihood of an aerosol being created.
4. Personnel – it is well known that males are 3 times more likely than females to catch Legionniare’s disease and the elderly and immuno compromised are more at risk.
5. Potential for Stagnation – stagnant water can provide an excellent breeding ground for bacteria and often where slow moving water is found the temperature is raised. Visit us to know more about Legionella Risk Assessment
http://www.nemco-utilities.co.uk/legionella-risk-assessment-19.html
Slide 3:
In completion of a risk assessment all areas of the water system are inspected including loft spaces and void areas however there is no disruption to the water supply and this can usually be completed during usual hours.
Following the on site assessment, a report is produced together with remedial recommendations and basic schematics drawings. In general premises fall into one of two categories;
No reasonably foreseeable risk
Reasonably foreseeable risk
Where there is a foreseeable risk it is necessary to have some form of ongoing Legionella Management. Visit us to know more about Legionella Risk Assessment
http://www.nemco-utilities.co.uk/legionella-risk-assessment-19.html
Slide 4:
1. No reasonably foreseeable risk for exposure to Legionella. In this instance a site will be deemed ‘low risk’ and no further measures / assessment are necessary. This would usually only apply to systems without any stored water i.e. cold water storage tanks and / or hot water cylinders.
2. Reasonably foreseeable risk of exposure to Legionella. This is usually the case where a cold water storage tank and / or hot water cylinder are present. It is then necessary to take further steps to mitigate the ongoing risk. Visit us to know more about Legionella Risk Assessment
http://www.nemco-utilities.co.uk/legionella-risk-assessment-19.html
Slide 5:
How often should I review my risk assessment?
A full re assessment should be completed every 2 years but in addition to this;
change to plant / water system or its use
change to use the of the building
new information about risks / control measures
tests indicate control measure are ineffective Visit us to know more about Legionella Risk Assessment
http://www.nemco-utilities.co.uk/legionella-risk-assessment-19.html
Nemco Utilities Limited :
Nemco Utilities Limited Nemco Utilities Ltd 12 Kempson WayHillside Business Park Bury St Edmunds Suffolk IP32 7EA Telephone: 01284 724503 Fax No.: 01284 724826 E-Mail
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sales@nemco-utilities.co.uk
accounts@nemco-utilities.co.uk Visit us to know more about Legionella Risk Assessment
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