Paul Limbrick

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TVC testing explained and how applicable it is to take a TVC sample?

Posted by Paul Limbrick on Mar 27, 2019 2:21:31 PM

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 count’, a laboratory test that indicates the level of heterotrophic organisms within a sample. Heterotrophs are a large group of organisms that can be further divided into fungi, yeasts, moulds and bacteria. Therefore, the results of a TVC test may offer an indication into the ‘general level’ of contamination within a system.

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Topics: Insider

Controlling the Chain of Infection

Posted by Paul Limbrick on Mar 6, 2019 7:20:00 AM

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 an effective ‘preventative management strategy’ in order to mitigate the risk of infection and subsequent disease.

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Topics: Insider

I have a Pseudomonas aeruginosa count – what next?

Posted by Paul Limbrick on Jan 16, 2019 2:03:20 PM

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 pathogen and the associated guidance. This knowledge will help to shape the actions…

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Topics: Insider

Guide to Records & Record Keeping for Water Safety

Posted by Paul Limbrick on Nov 13, 2018 11:11:24 AM

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?). No. We are focusing on records that form documented evidence to demonstrate compliance.

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Topics: Insider

Who can be appointed as an RP, DRP, AP or CP?

Posted by Paul Limbrick on Oct 31, 2018 12:26:14 PM

 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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Topics: Insider

The Water Safety Group, explained…

Posted by Paul Limbrick on Oct 3, 2018 11:37:45 AM

This group, the ‘water safety group’ [WSG], isn’t a new idea! The concept of the WSG was first outlined in the Department of Health’s HTM04-01 addendum and the subsequent revision of the HTM04-01 in 2016 provided updated guidance on the remit and aims of the group.

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Topics: Insider

How to control Legionella – Part 2: the risks and the options…

Posted by Paul Limbrick on Aug 8, 2018 10:47:52 AM

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 avoided should water temperature be kept within specification and the water within the system kept in regular movement/turned over. Moreover, when outlets test positive for bacteria of ‘human importance’, it’s first of all important to question ‘why’ and to ascertain to what extent the water system has been compromised (ie, how big is the loss of control…?).  

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Topics: Insider

How to control Legionella - Part 1: the risks and the options…

Posted by Paul Limbrick on Jul 31, 2018 2:39:38 PM

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 microorganisms. Moreover, whilst drinking water should be free from parasites (cryptosporidium) and faecal contaminants (coliforms/E. coli), it’s common for wholesome water to contain aquatic bacteria, as such bacteria make-up the ‘normal’ microbiology of drinking water. Therefore, bacteria such as Pseudomonas and Legionella live preferentially in the environment and these soil-derived bacteria frequently reside within water supplied to buildings.

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Topics: Insider

Developing a ‘plan’ for controlling the risk of Legionnaires’ Disease

Posted by Paul Limbrick on Jul 5, 2018 1:51:41 PM

 

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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Topics: Insider

Sampling processes - Part 3. Testing methods and what happens next.

Posted by Paul Limbrick on Feb 21, 2018 12:02:10 PM

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 custody. In this final blog of the series, we will now outline some of the ‘mysteries’ of what actually happens once a sample is received by the test laboratory…

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Topics: Insider

The Water Hygiene Centre was established in 2009 to address the lack of independent consultancy within the industry. Since then we have established ourselves as a market leader and have steadily grown, helping clients identify and minimise the risk of waterborne contamination and disease, whilst improving compliance performance.

Read our blog for advice on legionella bacteria control, water hygiene risk management and more.

Links to articles on other websites are provided for information only. Water Hygiene Centre does not endorse or sell any products and services offered by third parties

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