Blog Posts by Paul Limbrick
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Paul Limbrick

Paul is a Microbiologist who has diversified over his career into supporting clients with understanding of water control strategies, water sampling strategies along with consultancy support of specialist advisory services. These services have included membership of Water Safety Groups, shaping water safety plans [policy and operational control plans]. All of which reflect the offering of our Authorising Engineer (Water).
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Recent Posts

TVC testing explained & how applicable it is to take a TVC sample?
Image by Michal Jarmoluk from Pixabay  In this blog we explain what a TVC sample is, what the results mean and when a TVC sample can help inform on water safety… TVC stands for ‘total viable...
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Controlling the Chain of Infection
If we’re to control the ‘chain of infection’ we must first understand what it entails so that we can identify what is within our control.  In doing so, this may enable us to devise and implement...
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I have a Pseudomonas aeruginosa count – what next?
To understand the actions that should be taken when a positive Pseudomonas aeruginosa [P. aeruginosa] test results is received, it is prudent to first understand more about this opportunistic...
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Guide to Records & Record Keeping for Water Safety
Image by Siggy Nowak from Pixabay  In this blog we are going to consider records for water safety. When we say ‘records’ we don’t mean the round vinyl LP type (Handel’s ‘Water Music’, anyone?)....
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Who can be appointed as an RP, DRP, AP or CP?
 In this blog we explore the various roles that exist within an organisations water safety team and who is the most appropriate person to fill each of these positions.
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The Water Safety Group, explained…
This group, the ‘water safety group’ [WSG], isn’t a new idea! The concept of the Water Safety Group was first outlined in the Department of Health’s HTM04-01 addendum and the subsequent revision...
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How to control Legionella – Part 2: the risks and the options…
As discussed in Part 1, temperature has limited effectiveness when treating biofilm bacteria (especially mature biofilm) but colonisation of a system with biofilm bacteria may (in the main) be...
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How to control Legionella - Part 1: the risks and the options…
Water undertakers have a responsibility to ensure that ‘wholesome’ water is delivered to the point of entry of buildings, this does not necessarily mean that such waters are free from...
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Developing a plan for controlling Legionnaires’ Disease
Image by Gerd Altmann from Pixabay  The single most important aspect of good water management is having a ‘plan’, hence the expression; ‘fail to plan, then plan to fail’!
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Sampling processes - Part 3 Testing methods & what happens next
Image by PublicDomainPictures from Pixabay  As recap on the first and second parts of this blog series on sampling, we’ve already covered; sampling strategy, taking a water sample and the chain of...
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